Mae Sai, Chiang Rai, Thailand Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Mae Sai, Chiang Rai, Thailand
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
14th Aug 2023
86AQILowest AQI recorded on
21st Aug 2023
30AQISame Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 44 of Good air quality on the same day.
Day & Night AQI Trend: 6th Aug - 7th Aug 2026
Mae Sai, Chiang Rai, Thailand
AQI
Day
Night
.
5 AM6th Aug 2026
7 PM
4 AM7th Aug 2026
Day time
Avg. Highest Time
8AM6th Aug
56AQI
Avg. Lowest Time
12PM6th Aug
36AQI
Night time
Avg. Highest Time
11PM6th Aug
50AQI
Avg. Lowest Time
9PM6th Aug
28AQI
In the last 24 hours,
Mae Sai's AQI reached its highest point of 56 at 8 AM during the Day, while the lowest point, 28, was recorded at 9 PM during the Night between 6th Aug and 7th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Mae Sai, Chiang Rai, Thailand
JulAug
09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th
Day
Night
9th Jul 2026135 AMAQI
9th Jul 2026106 AMAQI
9th Jul 2026127 AMAQI
9th Jul 2026188 AMAQI
9th Jul 2026169 AMAQI
9th Jul 20261910 AMAQI
9th Jul 20262311 AMAQI
9th Jul 20262712 PMAQI
9th Jul 2026231 PMAQI
9th Jul 2026182 PMAQI
9th Jul 2026213 PMAQI
9th Jul 2026244 PMAQI
9th Jul 2026225 PMAQI
9th Jul 2026376 PMAQI
9th Jul 2026307 PMAQI
9th Jul 2026258 PMAQI
9th Jul 2026259 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262311 PMAQI
10th Jul 20262112 AMAQI
10th Jul 2026221 AMAQI
10th Jul 2026182 AMAQI
10th Jul 2026163 AMAQI
10th Jul 2026184 AMAQI
22°C21/24°C
10th Jul 2026175 AMAQI
10th Jul 2026196 AMAQI
10th Jul 2026227 AMAQI
10th Jul 2026278 AMAQI
10th Jul 2026219 AMAQI
10th Jul 20261710 AMAQI
10th Jul 20261711 AMAQI
10th Jul 20261912 PMAQI
10th Jul 2026201 PMAQI
10th Jul 2026232 PMAQI
10th Jul 2026283 PMAQI
10th Jul 2026214 PMAQI
10th Jul 2026245 PMAQI
10th Jul 2026256 PMAQI
10th Jul 2026247 PMAQI
10th Jul 2026318 PMAQI
10th Jul 2026339 PMAQI
10th Jul 20263310 PMAQI
10th Jul 20263211 PMAQI
11th Jul 20263312 AMAQI
11th Jul 2026361 AMAQI
11th Jul 2026502 AMAQI
11th Jul 2026553 AMAQI
11th Jul 2026574 AMAQI
23°C21/28°C
11th Jul 2026325 AMAQI
11th Jul 2026326 AMAQI
11th Jul 2026327 AMAQI
11th Jul 2026328 AMAQI
11th Jul 2026299 AMAQI
11th Jul 20262910 AMAQI
11th Jul 20262711 AMAQI
11th Jul 20262712 PMAQI
11th Jul 2026231 PMAQI
11th Jul 2026282 PMAQI
11th Jul 2026303 PMAQI
11th Jul 2026294 PMAQI
11th Jul 2026395 PMAQI
11th Jul 2026336 PMAQI
11th Jul 2026347 PMAQI
11th Jul 2026328 PMAQI
11th Jul 2026319 PMAQI
11th Jul 20263410 PMAQI
11th Jul 20263111 PMAQI
12th Jul 20263112 AMAQI
12th Jul 2026311 AMAQI
12th Jul 2026292 AMAQI
12th Jul 2026243 AMAQI
12th Jul 2026304 AMAQI
24°C21/31°C
12th Jul 2026255 AMAQI
12th Jul 2026256 AMAQI
12th Jul 2026237 AMAQI
12th Jul 2026328 AMAQI
12th Jul 2026299 AMAQI
12th Jul 20262510 AMAQI
12th Jul 20262411 AMAQI
12th Jul 20262312 PMAQI
12th Jul 2026211 PMAQI
12th Jul 2026222 PMAQI
12th Jul 2026273 PMAQI
12th Jul 2026234 PMAQI
12th Jul 2026255 PMAQI
12th Jul 2026276 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026298 PMAQI
12th Jul 2026259 PMAQI
12th Jul 20262510 PMAQI
12th Jul 20262611 PMAQI
13th Jul 20262212 AMAQI
13th Jul 2026191 AMAQI
13th Jul 2026222 AMAQI
13th Jul 2026223 AMAQI
13th Jul 2026204 AMAQI
23°C21/28°C
13th Jul 2026225 AMAQI
13th Jul 2026376 AMAQI
13th Jul 2026297 AMAQI
13th Jul 2026258 AMAQI
13th Jul 2026329 AMAQI
13th Jul 20263110 AMAQI
13th Jul 20262311 AMAQI
13th Jul 20262012 PMAQI
13th Jul 2026211 PMAQI
13th Jul 2026252 PMAQI
13th Jul 2026273 PMAQI
13th Jul 2026304 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026326 PMAQI
13th Jul 2026327 PMAQI
13th Jul 2026298 PMAQI
13th Jul 2026299 PMAQI
13th Jul 20262710 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263112 AMAQI
14th Jul 2026231 AMAQI
14th Jul 2026182 AMAQI
14th Jul 2026263 AMAQI
14th Jul 2026294 AMAQI
24°C21/28°C
14th Jul 2026295 AMAQI
14th Jul 2026286 AMAQI
14th Jul 2026317 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026259 AMAQI
14th Jul 20262210 AMAQI
14th Jul 20262211 AMAQI
14th Jul 20262412 PMAQI
14th Jul 2026241 PMAQI
14th Jul 2026272 PMAQI
14th Jul 2026313 PMAQI
14th Jul 2026294 PMAQI
14th Jul 2026385 PMAQI
14th Jul 2026356 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026328 PMAQI
14th Jul 2026399 PMAQI
14th Jul 20263910 PMAQI
14th Jul 20263811 PMAQI
15th Jul 20263312 AMAQI
15th Jul 2026301 AMAQI
15th Jul 2026282 AMAQI
15th Jul 2026323 AMAQI
15th Jul 2026304 AMAQI
24°C21/29°C
15th Jul 2026315 AMAQI
15th Jul 2026326 AMAQI
15th Jul 2026347 AMAQI
15th Jul 2026468 AMAQI
15th Jul 2026389 AMAQI
15th Jul 20263010 AMAQI
15th Jul 20263811 AMAQI
15th Jul 20262312 PMAQI
15th Jul 2026241 PMAQI
15th Jul 2026442 PMAQI
15th Jul 2026193 PMAQI
15th Jul 2026394 PMAQI
15th Jul 2026235 PMAQI
15th Jul 2026316 PMAQI
15th Jul 2026277 PMAQI
15th Jul 2026338 PMAQI
15th Jul 2026409 PMAQI
15th Jul 20263510 PMAQI
15th Jul 20262811 PMAQI
16th Jul 20262912 AMAQI
16th Jul 2026241 AMAQI
16th Jul 2026212 AMAQI
16th Jul 2026233 AMAQI
16th Jul 2026214 AMAQI
24°C21/28°C
16th Jul 2026295 AMAQI
16th Jul 2026246 AMAQI
16th Jul 2026267 AMAQI
16th Jul 2026348 AMAQI
16th Jul 2026319 AMAQI
16th Jul 20263810 AMAQI
16th Jul 20263911 AMAQI
16th Jul 20263712 PMAQI
16th Jul 2026461 PMAQI
16th Jul 2026412 PMAQI
16th Jul 2026503 PMAQI
16th Jul 2026484 PMAQI
16th Jul 2026315 PMAQI
16th Jul 2026396 PMAQI
16th Jul 2026397 PMAQI
16th Jul 2026478 PMAQI
16th Jul 2026319 PMAQI
16th Jul 20262510 PMAQI
16th Jul 20262211 PMAQI
17th Jul 20262112 AMAQI
17th Jul 2026211 AMAQI
17th Jul 2026212 AMAQI
17th Jul 2026163 AMAQI
17th Jul 2026184 AMAQI
23°C21/28°C
17th Jul 2026185 AMAQI
17th Jul 2026266 AMAQI
17th Jul 2026287 AMAQI
17th Jul 2026318 AMAQI
17th Jul 2026469 AMAQI
17th Jul 20264310 AMAQI
17th Jul 20263811 AMAQI
17th Jul 20263612 PMAQI
17th Jul 2026511 PMAQI
17th Jul 2026502 PMAQI
17th Jul 2026503 PMAQI
17th Jul 2026544 PMAQI
17th Jul 2026535 PMAQI
17th Jul 2026546 PMAQI
17th Jul 2026567 PMAQI
17th Jul 2026548 PMAQI
17th Jul 2026529 PMAQI
17th Jul 20265810 PMAQI
17th Jul 20265511 PMAQI
18th Jul 20264612 AMAQI
18th Jul 2026471 AMAQI
18th Jul 2026492 AMAQI
18th Jul 2026473 AMAQI
18th Jul 2026524 AMAQI
22°C21/23°C
18th Jul 2026535 AMAQI
18th Jul 2026506 AMAQI
18th Jul 2026527 AMAQI
18th Jul 2026578 AMAQI
18th Jul 2026579 AMAQI
18th Jul 20265510 AMAQI
18th Jul 20266111 AMAQI
18th Jul 20266512 PMAQI
18th Jul 2026691 PMAQI
18th Jul 2026652 PMAQI
18th Jul 2026633 PMAQI
18th Jul 2026654 PMAQI
18th Jul 2026665 PMAQI
18th Jul 2026646 PMAQI
18th Jul 2026697 PMAQI
18th Jul 2026688 PMAQI
18th Jul 2026669 PMAQI
18th Jul 20266310 PMAQI
18th Jul 20266311 PMAQI
19th Jul 20266212 AMAQI
19th Jul 2026611 AMAQI
19th Jul 2026582 AMAQI
19th Jul 2026623 AMAQI
19th Jul 2026574 AMAQI
21°C21/23°C
19th Jul 2026575 AMAQI
19th Jul 2026616 AMAQI
19th Jul 2026637 AMAQI
19th Jul 2026618 AMAQI
19th Jul 2026739 AMAQI
19th Jul 20267410 AMAQI
19th Jul 20267011 AMAQI
19th Jul 20266912 PMAQI
19th Jul 2026671 PMAQI
19th Jul 2026702 PMAQI
19th Jul 2026713 PMAQI
19th Jul 2026714 PMAQI
19th Jul 2026585 PMAQI
19th Jul 2026556 PMAQI
19th Jul 2026447 PMAQI
19th Jul 2026498 PMAQI
19th Jul 2026629 PMAQI
19th Jul 20266610 PMAQI
19th Jul 20266411 PMAQI
20th Jul 20266112 AMAQI
20th Jul 2026611 AMAQI
20th Jul 2026602 AMAQI
20th Jul 2026543 AMAQI
20th Jul 2026584 AMAQI
22°C19/26°C
20th Jul 2026565 AMAQI
20th Jul 2026636 AMAQI
20th Jul 2026687 AMAQI
20th Jul 2026708 AMAQI
20th Jul 2026699 AMAQI
20th Jul 20266010 AMAQI
20th Jul 20266111 AMAQI
20th Jul 20265712 PMAQI
20th Jul 2026561 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026593 PMAQI
20th Jul 2026544 PMAQI
20th Jul 2026595 PMAQI
20th Jul 2026526 PMAQI
20th Jul 2026507 PMAQI
20th Jul 2026448 PMAQI
20th Jul 2026439 PMAQI
20th Jul 20264510 PMAQI
20th Jul 20264711 PMAQI
21st Jul 20264212 AMAQI
21st Jul 2026431 AMAQI
21st Jul 2026302 AMAQI
21st Jul 2026293 AMAQI
21st Jul 2026294 AMAQI
22°C19/27°C
21st Jul 2026315 AMAQI
21st Jul 2026306 AMAQI
21st Jul 2026417 AMAQI
21st Jul 2026478 AMAQI
21st Jul 2026479 AMAQI
21st Jul 20264811 AMAQI
21st Jul 20264412 PMAQI
21st Jul 2026411 PMAQI
21st Jul 2026432 PMAQI
21st Jul 2026333 PMAQI
21st Jul 2026304 PMAQI
21st Jul 2026825 PMAQI
21st Jul 2026316 PMAQI
21st Jul 2026327 PMAQI
21st Jul 2026308 PMAQI
21st Jul 2026319 PMAQI
21st Jul 20262910 PMAQI
21st Jul 20262311 PMAQI
22nd Jul 20262612 AMAQI
22nd Jul 2026241 AMAQI
22nd Jul 2026262 AMAQI
22nd Jul 2026283 AMAQI
22nd Jul 2026254 AMAQI
22°C19/27°C
22nd Jul 2026295 AMAQI
22nd Jul 2026296 AMAQI
22nd Jul 2026277 AMAQI
22nd Jul 2026328 AMAQI
22nd Jul 2026389 AMAQI
22nd Jul 20263710 AMAQI
22nd Jul 20263511 AMAQI
22nd Jul 20262612 PMAQI
22nd Jul 2026311 PMAQI
22nd Jul 2026302 PMAQI
22nd Jul 2026313 PMAQI
22nd Jul 2026274 PMAQI
22nd Jul 2026285 PMAQI
22nd Jul 2026406 PMAQI
22nd Jul 2026367 PMAQI
22nd Jul 2026338 PMAQI
22nd Jul 2026229 PMAQI
22nd Jul 20262210 PMAQI
22nd Jul 20262611 PMAQI
23rd Jul 20262612 AMAQI
23rd Jul 2026231 AMAQI
23rd Jul 2026232 AMAQI
23rd Jul 2026233 AMAQI
23rd Jul 2026324 AMAQI
23°C20/27°C
23rd Jul 2026275 AMAQI
23rd Jul 2026296 AMAQI
23rd Jul 2026317 AMAQI
23rd Jul 2026308 AMAQI
23rd Jul 2026269 AMAQI
23rd Jul 20262810 AMAQI
23rd Jul 20262911 AMAQI
23rd Jul 20263612 PMAQI
23rd Jul 2026341 PMAQI
23rd Jul 2026332 PMAQI
23rd Jul 2026393 PMAQI
23rd Jul 2026344 PMAQI
23rd Jul 2026395 PMAQI
23rd Jul 2026356 PMAQI
23rd Jul 2026387 PMAQI
23rd Jul 2026328 PMAQI
23rd Jul 2026489 PMAQI
23rd Jul 20263910 PMAQI
23rd Jul 20264111 PMAQI
24th Jul 20264412 AMAQI
24th Jul 2026371 AMAQI
24th Jul 2026402 AMAQI
24th Jul 2026433 AMAQI
24th Jul 2026394 AMAQI
23°C19/30°C
24th Jul 2026455 AMAQI
24th Jul 2026406 AMAQI
24th Jul 2026347 AMAQI
24th Jul 2026318 AMAQI
24th Jul 2026299 AMAQI
24th Jul 20263510 AMAQI
24th Jul 20263311 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026261 PMAQI
24th Jul 2026332 PMAQI
24th Jul 2026243 PMAQI
24th Jul 2026274 PMAQI
24th Jul 2026285 PMAQI
24th Jul 2026306 PMAQI
24th Jul 2026297 PMAQI
24th Jul 2026348 PMAQI
24th Jul 2026349 PMAQI
24th Jul 20263510 PMAQI
24th Jul 20264511 PMAQI
25th Jul 20264412 AMAQI
25th Jul 2026371 AMAQI
25th Jul 2026392 AMAQI
25th Jul 2026413 AMAQI
25th Jul 2026344 AMAQI
23°C20/29°C
25th Jul 2026335 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026317 AMAQI
25th Jul 2026358 AMAQI
25th Jul 2026339 AMAQI
25th Jul 20263410 AMAQI
25th Jul 20263911 AMAQI
25th Jul 20263812 PMAQI
25th Jul 2026371 PMAQI
25th Jul 2026322 PMAQI
25th Jul 2026323 PMAQI
25th Jul 2026454 PMAQI
25th Jul 2026425 PMAQI
25th Jul 2026396 PMAQI
25th Jul 2026407 PMAQI
25th Jul 2026428 PMAQI
25th Jul 2026399 PMAQI
25th Jul 20265310 PMAQI
25th Jul 20264111 PMAQI
26th Jul 20264412 AMAQI
26th Jul 2026371 AMAQI
26th Jul 2026382 AMAQI
26th Jul 2026363 AMAQI
26th Jul 2026454 AMAQI
23°C21/26°C
26th Jul 2026525 AMAQI
26th Jul 2026446 AMAQI
26th Jul 2026397 AMAQI
26th Jul 2026398 AMAQI
26th Jul 2026489 AMAQI
26th Jul 20264810 AMAQI
26th Jul 20263911 AMAQI
26th Jul 20264112 PMAQI
26th Jul 2026481 PMAQI
26th Jul 2026432 PMAQI
26th Jul 2026263 PMAQI
26th Jul 2026314 PMAQI
26th Jul 2026285 PMAQI
26th Jul 2026256 PMAQI
26th Jul 2026287 PMAQI
26th Jul 2026288 PMAQI
26th Jul 2026479 PMAQI
26th Jul 20264310 PMAQI
26th Jul 20264211 PMAQI
27th Jul 20264612 AMAQI
27th Jul 2026461 AMAQI
27th Jul 2026412 AMAQI
27th Jul 2026443 AMAQI
27th Jul 2026514 AMAQI
23°C20/28°C
27th Jul 2026415 AMAQI
27th Jul 2026386 AMAQI
27th Jul 2026437 AMAQI
27th Jul 2026358 AMAQI
27th Jul 2026469 AMAQI
27th Jul 20265210 AMAQI
27th Jul 20264811 AMAQI
27th Jul 20263012 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026332 PMAQI
27th Jul 2026273 PMAQI
27th Jul 2026304 PMAQI
27th Jul 2026335 PMAQI
27th Jul 2026316 PMAQI
27th Jul 2026337 PMAQI
27th Jul 2026388 PMAQI
27th Jul 2026469 PMAQI
27th Jul 20264210 PMAQI
27th Jul 20264011 PMAQI
28th Jul 20264712 AMAQI
28th Jul 2026361 AMAQI
28th Jul 2026352 AMAQI
28th Jul 2026303 AMAQI
28th Jul 2026344 AMAQI
24°C21/30°C
28th Jul 2026405 AMAQI
28th Jul 2026396 AMAQI
28th Jul 2026417 AMAQI
28th Jul 2026548 AMAQI
28th Jul 2026539 AMAQI
28th Jul 20264610 AMAQI
28th Jul 20265311 AMAQI
28th Jul 20264812 PMAQI
28th Jul 2026281 PMAQI
28th Jul 2026282 PMAQI
28th Jul 2026303 PMAQI
28th Jul 2026344 PMAQI
28th Jul 2026385 PMAQI
28th Jul 2026416 PMAQI
28th Jul 2026417 PMAQI
28th Jul 2026458 PMAQI
28th Jul 2026279 PMAQI
28th Jul 20264710 PMAQI
28th Jul 20264411 PMAQI
29th Jul 20264212 AMAQI
29th Jul 2026381 AMAQI
29th Jul 2026372 AMAQI
29th Jul 2026393 AMAQI
29th Jul 2026434 AMAQI
23°C21/29°C
29th Jul 2026365 AMAQI
29th Jul 2026376 AMAQI
29th Jul 2026377 AMAQI
29th Jul 2026398 AMAQI
29th Jul 2026439 AMAQI
29th Jul 20263910 AMAQI
29th Jul 20264511 AMAQI
29th Jul 20264912 PMAQI
29th Jul 2026471 PMAQI
29th Jul 2026422 PMAQI
29th Jul 2026423 PMAQI
29th Jul 2026404 PMAQI
29th Jul 2026425 PMAQI
29th Jul 2026436 PMAQI
29th Jul 2026457 PMAQI
29th Jul 2026418 PMAQI
29th Jul 2026409 PMAQI
29th Jul 20264110 PMAQI
29th Jul 20264111 PMAQI
30th Jul 20264212 AMAQI
30th Jul 2026441 AMAQI
30th Jul 2026442 AMAQI
30th Jul 2026403 AMAQI
30th Jul 2026354 AMAQI
23°C20/27°C
30th Jul 2026365 AMAQI
30th Jul 2026386 AMAQI
30th Jul 2026387 AMAQI
30th Jul 2026408 AMAQI
30th Jul 2026389 AMAQI
30th Jul 20264010 AMAQI
30th Jul 20264411 AMAQI
30th Jul 20264612 PMAQI
30th Jul 2026481 PMAQI
30th Jul 2026432 PMAQI
30th Jul 2026463 PMAQI
30th Jul 2026464 PMAQI
30th Jul 2026525 PMAQI
30th Jul 2026446 PMAQI
30th Jul 2026447 PMAQI
30th Jul 2026418 PMAQI
30th Jul 2026399 PMAQI
30th Jul 20264810 PMAQI
30th Jul 20264011 PMAQI
31st Jul 20264012 AMAQI
31st Jul 2026381 AMAQI
31st Jul 2026372 AMAQI
31st Jul 2026403 AMAQI
31st Jul 2026374 AMAQI
23°C21/27°C
31st Jul 2026415 AMAQI
31st Jul 2026426 AMAQI
31st Jul 2026427 AMAQI
31st Jul 2026418 AMAQI
31st Jul 2026509 AMAQI
31st Jul 20264610 AMAQI
31st Jul 20264411 AMAQI
31st Jul 20264212 PMAQI
31st Jul 2026431 PMAQI
31st Jul 2026442 PMAQI
31st Jul 2026443 PMAQI
31st Jul 2026454 PMAQI
31st Jul 2026225 PMAQI
31st Jul 2026376 PMAQI
31st Jul 2026427 PMAQI
31st Jul 2026438 PMAQI
31st Jul 2026449 PMAQI
31st Jul 20264710 PMAQI
31st Jul 20264211 PMAQI
1st Aug 20263912 AMAQI
1st Aug 2026381 AMAQI
1st Aug 2026392 AMAQI
1st Aug 2026403 AMAQI
1st Aug 2026384 AMAQI
23°C21/28°C
1st Aug 2026435 AMAQI
1st Aug 2026226 AMAQI
1st Aug 2026227 AMAQI
1st Aug 2026258 AMAQI
1st Aug 2026239 AMAQI
1st Aug 20262510 AMAQI
1st Aug 20262311 AMAQI
1st Aug 20262312 PMAQI
1st Aug 2026231 PMAQI
1st Aug 2026232 PMAQI
1st Aug 2026333 PMAQI
1st Aug 2026404 PMAQI
1st Aug 2026425 PMAQI
1st Aug 2026456 PMAQI
1st Aug 2026387 PMAQI
1st Aug 2026448 PMAQI
1st Aug 2026449 PMAQI
1st Aug 20264910 PMAQI
1st Aug 20264211 PMAQI
2nd Aug 20264112 AMAQI
2nd Aug 2026421 AMAQI
2nd Aug 2026382 AMAQI
2nd Aug 2026383 AMAQI
2nd Aug 2026394 AMAQI
23°C21/27°C
2nd Aug 2026375 AMAQI
2nd Aug 2026456 AMAQI
2nd Aug 2026467 AMAQI
2nd Aug 2026348 AMAQI
2nd Aug 2026379 AMAQI
2nd Aug 20263310 AMAQI
2nd Aug 20262611 AMAQI
2nd Aug 20262812 PMAQI
2nd Aug 2026251 PMAQI
2nd Aug 2026282 PMAQI
2nd Aug 2026333 PMAQI
2nd Aug 2026374 PMAQI
2nd Aug 2026365 PMAQI
2nd Aug 2026416 PMAQI
2nd Aug 2026417 PMAQI
2nd Aug 2026418 PMAQI
2nd Aug 2026419 PMAQI
2nd Aug 20262610 PMAQI
2nd Aug 20264411 PMAQI
3rd Aug 20264012 AMAQI
3rd Aug 2026401 AMAQI
3rd Aug 2026412 AMAQI
3rd Aug 2026393 AMAQI
3rd Aug 2026424 AMAQI
24°C22/28°C
3rd Aug 2026435 AMAQI
3rd Aug 2026436 AMAQI
3rd Aug 2026437 AMAQI
3rd Aug 2026458 AMAQI
3rd Aug 2026479 AMAQI
3rd Aug 20265010 AMAQI
3rd Aug 20265111 AMAQI
3rd Aug 20265012 PMAQI
3rd Aug 2026421 PMAQI
3rd Aug 2026422 PMAQI
3rd Aug 2026443 PMAQI
3rd Aug 2026404 PMAQI
3rd Aug 2026435 PMAQI
3rd Aug 2026426 PMAQI
3rd Aug 2026427 PMAQI
3rd Aug 2026518 PMAQI
3rd Aug 2026429 PMAQI
3rd Aug 20264210 PMAQI
3rd Aug 20264111 PMAQI
4th Aug 20264312 AMAQI
4th Aug 2026461 AMAQI
4th Aug 2026432 AMAQI
4th Aug 2026403 AMAQI
4th Aug 2026394 AMAQI
24°C22/28°C
4th Aug 2026385 AMAQI
4th Aug 2026396 AMAQI
4th Aug 2026397 AMAQI
4th Aug 2026428 AMAQI
4th Aug 2026439 AMAQI
4th Aug 20265010 AMAQI
4th Aug 20265511 AMAQI
4th Aug 20264812 PMAQI
4th Aug 2026521 PMAQI
4th Aug 2026512 PMAQI
4th Aug 2026433 PMAQI
4th Aug 2026414 PMAQI
4th Aug 2026405 PMAQI
4th Aug 2026446 PMAQI
4th Aug 2026507 PMAQI
4th Aug 2026548 PMAQI
4th Aug 2026449 PMAQI
4th Aug 20263910 PMAQI
4th Aug 20264211 PMAQI
5th Aug 20264512 AMAQI
5th Aug 2026411 AMAQI
5th Aug 2026382 AMAQI
5th Aug 2026393 AMAQI
5th Aug 2026394 AMAQI
23°C22/26°C
5th Aug 2026465 AMAQI
5th Aug 2026476 AMAQI
5th Aug 2026477 AMAQI
5th Aug 2026508 AMAQI
5th Aug 2026469 AMAQI
5th Aug 20264810 AMAQI
5th Aug 20264011 AMAQI
5th Aug 20264212 PMAQI
5th Aug 2026451 PMAQI
5th Aug 2026452 PMAQI
5th Aug 2026403 PMAQI
5th Aug 2026434 PMAQI
5th Aug 2026425 PMAQI
5th Aug 2026436 PMAQI
5th Aug 2026497 PMAQI
5th Aug 2026468 PMAQI
5th Aug 2026479 PMAQI
5th Aug 20264910 PMAQI
5th Aug 20264411 PMAQI
6th Aug 20264512 AMAQI
6th Aug 2026441 AMAQI
6th Aug 2026372 AMAQI
6th Aug 2026353 AMAQI
6th Aug 2026384 AMAQI
23°C22/25°C
6th Aug 2026385 AMAQI
6th Aug 2026406 AMAQI
6th Aug 2026517 AMAQI
6th Aug 2026568 AMAQI
6th Aug 2026479 AMAQI
6th Aug 20264110 AMAQI
6th Aug 20264011 AMAQI
6th Aug 20263612 PMAQI
6th Aug 2026391 PMAQI
6th Aug 2026422 PMAQI
6th Aug 2026423 PMAQI
6th Aug 2026394 PMAQI
6th Aug 2026435 PMAQI
6th Aug 2026406 PMAQI
6th Aug 2026417 PMAQI
6th Aug 2026428 PMAQI
6th Aug 2026289 PMAQI
6th Aug 20264710 PMAQI
6th Aug 20265011 PMAQI
7th Aug 20264412 AMAQI
7th Aug 2026411 AMAQI
7th Aug 2026422 AMAQI
7th Aug 2026453 AMAQI
7th Aug 2026424 AMAQI
23°C21/28°C
7th Aug 2026415 AMAQI
5 AM7th Aug 2026426 AMAQI
7th Aug 2026407 AMAQI
7th Aug 2026488 AMAQI
7th Aug 2026479 AMAQI
7th Aug 20264510 AMAQI
7th Aug 20264211 AMAQI
7th Aug 20264912 PMAQI
12 PM7th Aug 2026501 PMAQI
7th Aug 2026452 PMAQI
7th Aug 2026403 PMAQI
7th Aug 2026404 PMAQI
7th Aug 2026405 PMAQI
7th Aug 2026436 PMAQI
7th Aug 2026427 PMAQI
7 PM7th Aug 2026488 PMAQI
7th Aug 2026489 PMAQI
7th Aug 20264210 PMAQI
7th Aug 20265311 PMAQI
12 AM
4 AM
23°C21/28°C
Day time
Avg. Highest Time
8 AM - 7 PM
39AQI
12 hours / Day
360 hours / Month
Avg. Lowest Time
5 AM - 7 AM
36AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 7 PM (Avg. 39), while the lowest AQI was between 5 AM to 7 AM (Avg. 36).
Night time
Avg. Highest Time
8 PM - 11 PM
40AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
1 AM - 4 AM
36AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 40), while the lowest AQI was between 1 AM to 4 AM (Avg. 36).
2026 Days Vs Air Quality
Mae Sai, Chiang Rai, Thailand
2026
34%
75
42%
92
16%
36
5%
12
2%
4
Total number of days with different AQI categories in last 219 days in 2026 (146 days remaining)
Good
75 DaysModerate
92 DaysPoor
36 DaysUnhealthy
12 DaysSevere
4 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 34%
Health Risk Level:
High
In 2026, 34% of 219 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Mae Sai, Chiang Rai, Thailand
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
95AQI (US)
95AQI (US)
2nd January 2026
91AQI (US)
91AQI (US)
3rd January 2026
87AQI (US)
87AQI (US)
4th January 2026
74AQI (US)
74AQI (US)
5th January 2026
74AQI (US)
74AQI (US)
6th January 2026
84AQI (US)
84AQI (US)
7th January 2026
73AQI (US)
73AQI (US)
8th January 2026
69AQI (US)
69AQI (US)
9th January 2026
64AQI (US)
64AQI (US)
10th January 2026
71AQI (US)
71AQI (US)
11th January 2026
75AQI (US)
75AQI (US)
12th January 2026
83AQI (US)
83AQI (US)
13th January 2026
90AQI (US)
90AQI (US)
14th January 2026
99AQI (US)
99AQI (US)
15th January 2026
91AQI (US)
91AQI (US)
16th January 2026
84AQI (US)
84AQI (US)
17th January 2026
77AQI (US)
77AQI (US)
18th January 2026
75AQI (US)
75AQI (US)
19th January 2026
76AQI (US)
76AQI (US)
20th January 2026
72AQI (US)
72AQI (US)
21st January 2026
76AQI (US)
76AQI (US)
22nd January 2026
79AQI (US)
79AQI (US)
23rd January 2026
87AQI (US)
87AQI (US)
24th January 2026
74AQI (US)
74AQI (US)
25th January 2026
75AQI (US)
75AQI (US)
26th January 2026
76AQI (US)
76AQI (US)
27th January 2026
97AQI (US)
97AQI (US)
28th January 2026
102AQI (US)
102AQI (US)
29th January 2026
95AQI (US)
95AQI (US)
30th January 2026
93AQI (US)
93AQI (US)
31st January 2026
88AQI (US)
88AQI (US)
1st February 2026
101AQI (US)
101AQI (US)
2nd February 2026
98AQI (US)
98AQI (US)
3rd February 2026
91AQI (US)
91AQI (US)
4th February 2026
91AQI (US)
91AQI (US)
5th February 2026
97AQI (US)
97AQI (US)
6th February 2026
108AQI (US)
108AQI (US)
7th February 2026
101AQI (US)
101AQI (US)
8th February 2026
98AQI (US)
98AQI (US)
9th February 2026
95AQI (US)
95AQI (US)
10th February 2026
99AQI (US)
99AQI (US)
11th February 2026
92AQI (US)
92AQI (US)
12th February 2026
84AQI (US)
84AQI (US)
13th February 2026
78AQI (US)
78AQI (US)
14th February 2026
84AQI (US)
84AQI (US)
15th February 2026
92AQI (US)
92AQI (US)
16th February 2026
90AQI (US)
90AQI (US)
17th February 2026
96AQI (US)
96AQI (US)
18th February 2026
106AQI (US)
106AQI (US)
19th February 2026
110AQI (US)
110AQI (US)
20th February 2026
70AQI (US)
70AQI (US)
21st February 2026
103AQI (US)
103AQI (US)
22nd February 2026
100AQI (US)
100AQI (US)
23rd February 2026
91AQI (US)
91AQI (US)
24th February 2026
114AQI (US)
114AQI (US)
25th February 2026
63AQI (US)
63AQI (US)
26th February 2026
52AQI (US)
52AQI (US)
27th February 2026
73AQI (US)
73AQI (US)
28th February 2026
90AQI (US)
90AQI (US)
1st March 2026
98AQI (US)
98AQI (US)
2nd March 2026
112AQI (US)
112AQI (US)
3rd March 2026
132AQI (US)
132AQI (US)
4th March 2026
140AQI (US)
140AQI (US)
5th March 2026
146AQI (US)
146AQI (US)
6th March 2026
123AQI (US)
123AQI (US)
7th March 2026
105AQI (US)
105AQI (US)
8th March 2026
121AQI (US)
121AQI (US)
9th March 2026
130AQI (US)
130AQI (US)
10th March 2026
85AQI (US)
85AQI (US)
11th March 2026
73AQI (US)
73AQI (US)
12th March 2026
92AQI (US)
92AQI (US)
13th March 2026
61AQI (US)
61AQI (US)
14th March 2026
79AQI (US)
79AQI (US)
15th March 2026
70AQI (US)
70AQI (US)
16th March 2026
82AQI (US)
82AQI (US)
17th March 2026
85AQI (US)
85AQI (US)
18th March 2026
97AQI (US)
97AQI (US)
19th March 2026
124AQI (US)
124AQI (US)
20th March 2026
134AQI (US)
134AQI (US)
21st March 2026
133AQI (US)
133AQI (US)
22nd March 2026
97AQI (US)
97AQI (US)
23rd March 2026
89AQI (US)
89AQI (US)
24th March 2026
135AQI (US)
135AQI (US)
25th March 2026
130AQI (US)
130AQI (US)
26th March 2026
147AQI (US)
147AQI (US)
27th March 2026
164AQI (US)
164AQI (US)
28th March 2026
159AQI (US)
159AQI (US)
29th March 2026
153AQI (US)
153AQI (US)
30th March 2026
173AQI (US)
173AQI (US)
31st March 2026
171AQI (US)
171AQI (US)
1st April 2026
202AQI (US)
202AQI (US)
2nd April 2026
217AQI (US)
217AQI (US)
3rd April 2026
205AQI (US)
205AQI (US)
4th April 2026
203AQI (US)
203AQI (US)
5th April 2026
200AQI (US)
200AQI (US)
6th April 2026
126AQI (US)
126AQI (US)
7th April 2026
132AQI (US)
132AQI (US)
8th April 2026
136AQI (US)
136AQI (US)
9th April 2026
139AQI (US)
139AQI (US)
10th April 2026
154AQI (US)
154AQI (US)
11th April 2026
150AQI (US)
150AQI (US)
12th April 2026
136AQI (US)
136AQI (US)
13th April 2026
151AQI (US)
151AQI (US)
14th April 2026
162AQI (US)
162AQI (US)
15th April 2026
164AQI (US)
164AQI (US)
16th April 2026
153AQI (US)
153AQI (US)
17th April 2026
141AQI (US)
141AQI (US)
18th April 2026
152AQI (US)
152AQI (US)
19th April 2026
136AQI (US)
136AQI (US)
20th April 2026
123AQI (US)
123AQI (US)
21st April 2026
146AQI (US)
146AQI (US)
22nd April 2026
150AQI (US)
150AQI (US)
23rd April 2026
129AQI (US)
129AQI (US)
24th April 2026
124AQI (US)
124AQI (US)
25th April 2026
118AQI (US)
118AQI (US)
26th April 2026
89AQI (US)
89AQI (US)
27th April 2026
90AQI (US)
90AQI (US)
28th April 2026
65AQI (US)
65AQI (US)
29th April 2026
82AQI (US)
82AQI (US)
30th April 2026
91AQI (US)
91AQI (US)
1st May 2026
72AQI (US)
72AQI (US)
2nd May 2026
81AQI (US)
81AQI (US)
3rd May 2026
65AQI (US)
65AQI (US)
4th May 2026
70AQI (US)
70AQI (US)
5th May 2026
57AQI (US)
57AQI (US)
6th May 2026
66AQI (US)
66AQI (US)
7th May 2026
81AQI (US)
81AQI (US)
8th May 2026
26AQI (US)
26AQI (US)
9th May 2026
42AQI (US)
42AQI (US)
10th May 2026
22AQI (US)
22AQI (US)
11th May 2026
21AQI (US)
21AQI (US)
12th May 2026
14AQI (US)
14AQI (US)
13th May 2026
24AQI (US)
24AQI (US)
14th May 2026
45AQI (US)
45AQI (US)
15th May 2026
33AQI (US)
33AQI (US)
16th May 2026
96AQI (US)
96AQI (US)
17th May 2026
94AQI (US)
94AQI (US)
18th May 2026
77AQI (US)
77AQI (US)
19th May 2026
69AQI (US)
69AQI (US)
20th May 2026
81AQI (US)
81AQI (US)
21st May 2026
82AQI (US)
82AQI (US)
22nd May 2026
79AQI (US)
79AQI (US)
23rd May 2026
53AQI (US)
53AQI (US)
24th May 2026
70AQI (US)
70AQI (US)
25th May 2026
72AQI (US)
72AQI (US)
26th May 2026
52AQI (US)
52AQI (US)
27th May 2026
42AQI (US)
42AQI (US)
28th May 2026
66AQI (US)
66AQI (US)
29th May 2026
29AQI (US)
29AQI (US)
30th May 2026
17AQI (US)
17AQI (US)
31st May 2026
32AQI (US)
32AQI (US)
1st June 2026
46AQI (US)
46AQI (US)
2nd June 2026
63AQI (US)
63AQI (US)
3rd June 2026
50AQI (US)
50AQI (US)
4th June 2026
62AQI (US)
62AQI (US)
5th June 2026
36AQI (US)
36AQI (US)
6th June 2026
23AQI (US)
23AQI (US)
7th June 2026
16AQI (US)
16AQI (US)
8th June 2026
21AQI (US)
21AQI (US)
9th June 2026
27AQI (US)
27AQI (US)
10th June 2026
26AQI (US)
26AQI (US)
11th June 2026
17AQI (US)
17AQI (US)
12th June 2026
19AQI (US)
19AQI (US)
13th June 2026
16AQI (US)
16AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
18AQI (US)
18AQI (US)
16th June 2026
28AQI (US)
28AQI (US)
17th June 2026
26AQI (US)
26AQI (US)
18th June 2026
28AQI (US)
28AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
26AQI (US)
26AQI (US)
21st June 2026
15AQI (US)
15AQI (US)
22nd June 2026
16AQI (US)
16AQI (US)
23rd June 2026
28AQI (US)
28AQI (US)
24th June 2026
30AQI (US)
30AQI (US)
25th June 2026
34AQI (US)
34AQI (US)
26th June 2026
35AQI (US)
35AQI (US)
27th June 2026
43AQI (US)
43AQI (US)
28th June 2026
32AQI (US)
32AQI (US)
29th June 2026
30AQI (US)
30AQI (US)
30th June 2026
23AQI (US)
23AQI (US)
1st July 2026
27AQI (US)
27AQI (US)
2nd July 2026
18AQI (US)
18AQI (US)
3rd July 2026
18AQI (US)
18AQI (US)
4th July 2026
18AQI (US)
18AQI (US)
5th July 2026
17AQI (US)
17AQI (US)
6th July 2026
26AQI (US)
26AQI (US)
7th July 2026
33AQI (US)
33AQI (US)
8th July 2026
37AQI (US)
37AQI (US)
9th July 2026
21AQI (US)
21AQI (US)
10th July 2026
23AQI (US)
23AQI (US)
11th July 2026
34AQI (US)
34AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
27AQI (US)
27AQI (US)
14th July 2026
29AQI (US)
29AQI (US)
15th July 2026
32AQI (US)
32AQI (US)
16th July 2026
33AQI (US)
33AQI (US)
17th July 2026
39AQI (US)
39AQI (US)
18th July 2026
59AQI (US)
59AQI (US)
19th July 2026
63AQI (US)
63AQI (US)
20th July 2026
57AQI (US)
57AQI (US)
21st July 2026
38AQI (US)
38AQI (US)
22nd July 2026
30AQI (US)
30AQI (US)
23rd July 2026
32AQI (US)
32AQI (US)
24th July 2026
34AQI (US)
34AQI (US)
25th July 2026
38AQI (US)
38AQI (US)
26th July 2026
39AQI (US)
39AQI (US)
27th July 2026
39AQI (US)
39AQI (US)
28th July 2026
40AQI (US)
40AQI (US)
29th July 2026
41AQI (US)
41AQI (US)
30th July 2026
42AQI (US)
42AQI (US)
31st July 2026
41AQI (US)
41AQI (US)
1st August 2026
34AQI (US)
34AQI (US)
2nd August 2026
37AQI (US)
37AQI (US)
3rd August 2026
43AQI (US)
43AQI (US)
4th August 2026
44AQI (US)
44AQI (US)
5th August 2026
44AQI (US)
44AQI (US)
6th August 2026
42AQI (US)
42AQI (US)
7th August 2026
44AQI (US)
44AQI (US)
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
82AQI (US)
92AQI (US)
117AQI (US)
142AQI (US)
56AQI (US)
29AQI (US)
34AQI (US)
41AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202677AQI (US)
30
1
21
7
12
14
5
5
14
7
4
12
19
28
2
28
3
7
75
92
36
12
4
Highest AQI (US) recorded in
April142AQI (US)
Lowest AQI (US) recorded in
June29AQI (US)
202573AQI (US)
15
16
7
21
5
18
8
14
11
5
10
21
18
12
30
1
20
11
23
7
5
26
10
19
1
27
4
116
165
71
13
Highest AQI (US) recorded in
March126AQI (US)
Lowest AQI (US) recorded in
September42AQI (US)
202484AQI (US)
19
12
3
25
1
6
16
9
16
8
6
8
12
6
5
30
31
31
19
11
11
20
7
23
31
137
119
65
30
15
Highest AQI (US) recorded in
March178AQI (US)
Lowest AQI (US) recorded in
August35AQI (US)
202399AQI (US)
9
22
3
8
17
7
14
7
3
9
5
8
8
2
16
13
13
17
22
9
20
11
19
11
15
16
1
25
3
21
10
92
138
72
36
15
11
Highest AQI (US) recorded in
April224AQI (US)
Lowest AQI (US) recorded in
September43AQI (US)
202274AQI (US)
4
24
3
1
12
8
6
24
1
2
7
17
4
10
20
1
29
1
26
4
19
9
1
12
17
2
1
29
12
19
108
137
75
5
Highest AQI (US) recorded in
March121AQI (US)
Lowest AQI (US) recorded in
July29AQI (US)
202174AQI (US)
1
14
16
4
10
14
8
20
3
3
14
7
4
1
1
8
13
10
9
10
11
28
3
29
2
29
1
22
9
17
13
7
19
5
157
108
71
24
4
1
Highest AQI (US) recorded in
March167AQI (US)
Lowest AQI (US) recorded in
August30AQI (US)
202067AQI (US)
2
7
4
1
6
5
9
5
9
5
27
3
30
1
31
23
6
1
28
3
9
21
3
25
3
156
69
15
7
16
4
Highest AQI (US) recorded in
March278AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
99AQI (US)Least Polluted Year Recorded
2020(Avg.)
67AQI (US)Mae Sai's annual 2026 AQI (US) (77) shows an average percentage change of -0.3% (improved AQI (US)) compared to previous years: 2020 (67), 2021 (74), 2022 (74), 2023 (99), 2024 (84), 2025 (73).
