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
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
14th Aug 2023
86AQILowest AQI recorded on
15th Aug 2021
17AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 57 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Mae Sai, Chiang Rai, Thailand
AQI
Day
Night
.
5 AM2nd Aug 2025
7 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
11AM2nd Aug
58AQI
Avg. Lowest Time
4PM2nd Aug
44AQI
In the last 24 hours,
Mae Sai's AQI reached its highest point of 58 at 11 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Mae Sai, Chiang Rai, Thailand
JulAug
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 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
Day
Night
4th Jul 2025505 AMAQI
4th Jul 2025506 AMAQI
4th Jul 2025347 AMAQI
4th Jul 2025348 AMAQI
4th Jul 2025389 AMAQI
4th Jul 20254110 AMAQI
4th Jul 20254111 AMAQI
4th Jul 20253812 PMAQI
4th Jul 2025411 PMAQI
4th Jul 2025382 PMAQI
4th Jul 2025363 PMAQI
4th Jul 2025394 PMAQI
4th Jul 2025415 PMAQI
4th Jul 2025446 PMAQI
4th Jul 2025477 PMAQI
4th Jul 2025518 PMAQI
4th Jul 2025539 PMAQI
4th Jul 20255210 PMAQI
4th Jul 20254711 PMAQI
5th Jul 20255012 AMAQI
5th Jul 2025501 AMAQI
5th Jul 2025482 AMAQI
5th Jul 2025473 AMAQI
5th Jul 2025474 AMAQI
23°C21/26°C
5th Jul 2025465 AMAQI
5th Jul 2025476 AMAQI
5th Jul 2025397 AMAQI
5th Jul 2025378 AMAQI
5th Jul 2025389 AMAQI
5th Jul 20254310 AMAQI
5th Jul 20254611 AMAQI
5th Jul 20254312 PMAQI
5th Jul 2025421 PMAQI
5th Jul 2025402 PMAQI
5th Jul 2025413 PMAQI
5th Jul 2025384 PMAQI
5th Jul 2025425 PMAQI
5th Jul 2025406 PMAQI
5th Jul 2025437 PMAQI
5th Jul 2025468 PMAQI
5th Jul 2025479 PMAQI
5th Jul 20254510 PMAQI
5th Jul 20254411 PMAQI
6th Jul 20254512 AMAQI
6th Jul 2025441 AMAQI
6th Jul 2025422 AMAQI
6th Jul 2025423 AMAQI
6th Jul 2025444 AMAQI
24°C22/27°C
6th Jul 2025445 AMAQI
6th Jul 2025456 AMAQI
6th Jul 2025357 AMAQI
6th Jul 2025258 AMAQI
6th Jul 2025259 AMAQI
6th Jul 20252610 AMAQI
6th Jul 20253711 AMAQI
6th Jul 20253412 PMAQI
6th Jul 2025381 PMAQI
6th Jul 2025322 PMAQI
6th Jul 2025353 PMAQI
6th Jul 2025404 PMAQI
6th Jul 2025355 PMAQI
6th Jul 2025376 PMAQI
6th Jul 2025437 PMAQI
6th Jul 2025438 PMAQI
6th Jul 2025439 PMAQI
6th Jul 20254310 PMAQI
6th Jul 20254011 PMAQI
7th Jul 20254012 AMAQI
7th Jul 2025401 AMAQI
7th Jul 2025412 AMAQI
7th Jul 2025423 AMAQI
7th Jul 2025424 AMAQI
22°C20/24°C
7th Jul 2025415 AMAQI
7th Jul 2025416 AMAQI
7th Jul 2025297 AMAQI
7th Jul 2025298 AMAQI
7th Jul 2025369 AMAQI
7th Jul 20253510 AMAQI
7th Jul 20253611 AMAQI
7th Jul 20253812 PMAQI
7th Jul 2025311 PMAQI
7th Jul 2025352 PMAQI
7th Jul 2025343 PMAQI
7th Jul 2025354 PMAQI
7th Jul 2025355 PMAQI
7th Jul 2025366 PMAQI
7th Jul 2025417 PMAQI
7th Jul 2025458 PMAQI
7th Jul 2025469 PMAQI
7th Jul 20254210 PMAQI
7th Jul 20253811 PMAQI
8th Jul 20253812 AMAQI
8th Jul 2025411 AMAQI
8th Jul 2025412 AMAQI
8th Jul 2025403 AMAQI
8th Jul 2025404 AMAQI
23°C20/26°C
8th Jul 2025405 AMAQI
8th Jul 2025416 AMAQI
8th Jul 2025287 AMAQI
8th Jul 2025308 AMAQI
8th Jul 2025379 AMAQI
8th Jul 20253210 AMAQI
8th Jul 20253911 AMAQI
8th Jul 20254112 PMAQI
8th Jul 2025441 PMAQI
8th Jul 2025382 PMAQI
8th Jul 2025403 PMAQI
8th Jul 2025484 PMAQI
8th Jul 2025485 PMAQI
8th Jul 2025456 PMAQI
8th Jul 2025477 PMAQI
8th Jul 2025528 PMAQI
8th Jul 2025539 PMAQI
8th Jul 20255210 PMAQI
8th Jul 20254911 PMAQI
9th Jul 20255012 AMAQI
9th Jul 2025461 AMAQI
9th Jul 2025402 AMAQI
9th Jul 2025393 AMAQI
9th Jul 2025394 AMAQI
25°C22/31°C
9th Jul 2025395 AMAQI
9th Jul 2025406 AMAQI
9th Jul 2025467 AMAQI
9th Jul 2025508 AMAQI
9th Jul 2025569 AMAQI
9th Jul 20255010 AMAQI
9th Jul 20255711 AMAQI
9th Jul 20254912 PMAQI
9th Jul 2025491 PMAQI
9th Jul 2025532 PMAQI
9th Jul 2025513 PMAQI
9th Jul 2025534 PMAQI
9th Jul 2025545 PMAQI
9th Jul 2025516 PMAQI
9th Jul 2025517 PMAQI
9th Jul 2025538 PMAQI
9th Jul 2025529 PMAQI
9th Jul 20255110 PMAQI
9th Jul 20255111 PMAQI
10th Jul 20254812 AMAQI
10th Jul 2025471 AMAQI
10th Jul 2025462 AMAQI
10th Jul 2025463 AMAQI
10th Jul 2025474 AMAQI
25°C20/29°C
10th Jul 2025455 AMAQI
10th Jul 2025456 AMAQI
10th Jul 2025427 AMAQI
10th Jul 2025448 AMAQI
10th Jul 2025499 AMAQI
10th Jul 20254610 AMAQI
10th Jul 20255211 AMAQI
10th Jul 20255112 PMAQI
10th Jul 2025521 PMAQI
10th Jul 2025542 PMAQI
10th Jul 2025523 PMAQI
10th Jul 2025514 PMAQI
10th Jul 2025535 PMAQI
10th Jul 2025546 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025498 PMAQI
10th Jul 2025509 PMAQI
10th Jul 20254810 PMAQI
10th Jul 20254811 PMAQI
11th Jul 20254712 AMAQI
11th Jul 2025471 AMAQI
11th Jul 2025462 AMAQI
11th Jul 2025493 AMAQI
11th Jul 2025484 AMAQI
24°C20/29°C
11th Jul 2025485 AMAQI
11th Jul 2025486 AMAQI
11th Jul 2025357 AMAQI
11th Jul 2025458 AMAQI
11th Jul 2025469 AMAQI
11th Jul 20254810 AMAQI
11th Jul 20255311 AMAQI
11th Jul 20255012 PMAQI
11th Jul 2025471 PMAQI
11th Jul 2025482 PMAQI
11th Jul 2025493 PMAQI
11th Jul 2025504 PMAQI
11th Jul 2025475 PMAQI
11th Jul 2025406 PMAQI
11th Jul 2025457 PMAQI
11th Jul 2025448 PMAQI
11th Jul 2025439 PMAQI
11th Jul 20254710 PMAQI
11th Jul 20254711 PMAQI
12th Jul 20254612 AMAQI
12th Jul 2025481 AMAQI
12th Jul 2025472 AMAQI
12th Jul 2025473 AMAQI
12th Jul 2025484 AMAQI
23°C20/26°C
12th Jul 2025485 AMAQI
12th Jul 2025486 AMAQI
12th Jul 2025437 AMAQI
12th Jul 2025388 AMAQI
12th Jul 2025379 AMAQI
12th Jul 20253810 AMAQI
12th Jul 20253911 AMAQI
12th Jul 20254312 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025372 PMAQI
12th Jul 2025343 PMAQI
12th Jul 2025374 PMAQI
12th Jul 2025385 PMAQI
12th Jul 2025436 PMAQI
12th Jul 2025427 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025359 PMAQI
12th Jul 20253810 PMAQI
12th Jul 20253711 PMAQI
13th Jul 20254212 AMAQI
13th Jul 2025481 AMAQI
13th Jul 2025472 AMAQI
13th Jul 2025463 AMAQI
13th Jul 2025454 AMAQI
24°C20/29°C
13th Jul 2025465 AMAQI
13th Jul 2025456 AMAQI
13th Jul 2025387 AMAQI
13th Jul 2025398 AMAQI
13th Jul 2025379 AMAQI
13th Jul 20254510 AMAQI
13th Jul 20254511 AMAQI
13th Jul 20254712 PMAQI
13th Jul 2025421 PMAQI
13th Jul 2025392 PMAQI
13th Jul 2025383 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025425 PMAQI
13th Jul 2025406 PMAQI
13th Jul 2025487 PMAQI
13th Jul 2025488 PMAQI
13th Jul 2025499 PMAQI
13th Jul 20255010 PMAQI
13th Jul 20254911 PMAQI
14th Jul 20255012 AMAQI
14th Jul 2025471 AMAQI
14th Jul 2025412 AMAQI
14th Jul 2025453 AMAQI
14th Jul 2025464 AMAQI
24°C20/30°C
14th Jul 2025445 AMAQI
14th Jul 2025446 AMAQI
14th Jul 2025417 AMAQI
14th Jul 2025438 AMAQI
14th Jul 2025449 AMAQI
14th Jul 20254510 AMAQI
14th Jul 20254511 AMAQI
14th Jul 20254412 PMAQI
14th Jul 2025451 PMAQI
14th Jul 2025462 PMAQI
14th Jul 2025393 PMAQI
14th Jul 2025394 PMAQI
14th Jul 2025395 PMAQI
14th Jul 2025376 PMAQI
14th Jul 2025417 PMAQI
14th Jul 2025428 PMAQI
14th Jul 2025429 PMAQI
14th Jul 20254010 PMAQI
14th Jul 20254411 PMAQI
15th Jul 20254712 AMAQI
15th Jul 2025471 AMAQI
15th Jul 2025492 AMAQI
15th Jul 2025493 AMAQI
15th Jul 2025474 AMAQI
24°C21/30°C
15th Jul 2025485 AMAQI
15th Jul 2025476 AMAQI
15th Jul 2025337 AMAQI
15th Jul 2025308 AMAQI
15th Jul 2025289 AMAQI
15th Jul 20253910 AMAQI
15th Jul 20254411 AMAQI
15th Jul 20253712 PMAQI
15th Jul 2025391 PMAQI
15th Jul 2025372 PMAQI
15th Jul 2025353 PMAQI
15th Jul 2025384 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025446 PMAQI
15th Jul 2025427 PMAQI
15th Jul 2025458 PMAQI
15th Jul 2025489 PMAQI
15th Jul 20254810 PMAQI
15th Jul 20254511 PMAQI
16th Jul 20255012 AMAQI
16th Jul 2025491 AMAQI
16th Jul 2025492 AMAQI
16th Jul 2025463 AMAQI
16th Jul 2025454 AMAQI
23°C21/26°C
16th Jul 2025445 AMAQI
16th Jul 2025436 AMAQI
16th Jul 2025397 AMAQI
16th Jul 2025398 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20254510 AMAQI
16th Jul 20254011 AMAQI
16th Jul 20253612 PMAQI
16th Jul 2025371 PMAQI
16th Jul 2025442 PMAQI
16th Jul 2025403 PMAQI
16th Jul 2025434 PMAQI
16th Jul 2025435 PMAQI
16th Jul 2025426 PMAQI
16th Jul 2025447 PMAQI
16th Jul 2025488 PMAQI
16th Jul 2025479 PMAQI
16th Jul 20254710 PMAQI
16th Jul 20254211 PMAQI
17th Jul 20254812 AMAQI
17th Jul 2025481 AMAQI
17th Jul 2025472 AMAQI
17th Jul 2025453 AMAQI
17th Jul 2025444 AMAQI
23°C21/26°C
17th Jul 2025445 AMAQI
17th Jul 2025446 AMAQI
17th Jul 2025407 AMAQI
17th Jul 2025358 AMAQI
17th Jul 2025439 AMAQI
17th Jul 20254910 AMAQI
17th Jul 20254811 AMAQI
17th Jul 20254812 PMAQI
17th Jul 2025441 PMAQI
17th Jul 2025432 PMAQI
17th Jul 2025443 PMAQI
17th Jul 2025424 PMAQI
17th Jul 2025485 PMAQI
17th Jul 2025446 PMAQI
17th Jul 2025497 PMAQI
17th Jul 2025508 PMAQI
17th Jul 2025529 PMAQI
17th Jul 20255310 PMAQI
17th Jul 20255211 PMAQI
18th Jul 20254712 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025472 AMAQI
18th Jul 2025463 AMAQI
18th Jul 2025454 AMAQI
22°C21/24°C
18th Jul 2025455 AMAQI
18th Jul 2025456 AMAQI
18th Jul 2025427 AMAQI
18th Jul 2025428 AMAQI
18th Jul 2025429 AMAQI
18th Jul 20253410 AMAQI
18th Jul 20253511 AMAQI
18th Jul 20254512 PMAQI
18th Jul 2025461 PMAQI
18th Jul 2025412 PMAQI
18th Jul 2025373 PMAQI
18th Jul 2025344 PMAQI
18th Jul 2025375 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025477 PMAQI
18th Jul 2025498 PMAQI
18th Jul 2025469 PMAQI
18th Jul 20254810 PMAQI
18th Jul 20255111 PMAQI
19th Jul 20254812 AMAQI
19th Jul 2025491 AMAQI
19th Jul 2025492 AMAQI
19th Jul 2025473 AMAQI
19th Jul 2025474 AMAQI
23°C20/28°C
19th Jul 2025475 AMAQI
19th Jul 2025466 AMAQI
19th Jul 2025387 AMAQI
19th Jul 2025398 AMAQI
19th Jul 2025419 AMAQI
19th Jul 20254410 AMAQI
19th Jul 20254711 AMAQI
19th Jul 20254612 PMAQI
19th Jul 2025441 PMAQI
19th Jul 2025382 PMAQI
19th Jul 2025393 PMAQI
19th Jul 2025394 PMAQI
19th Jul 2025395 PMAQI
19th Jul 2025436 PMAQI
19th Jul 2025517 PMAQI
19th Jul 2025528 PMAQI
19th Jul 2025519 PMAQI
19th Jul 20254910 PMAQI
19th Jul 20254711 PMAQI
20th Jul 20255012 AMAQI
20th Jul 2025521 AMAQI
20th Jul 2025482 AMAQI
20th Jul 2025473 AMAQI
20th Jul 2025484 AMAQI
24°C19/31°C
20th Jul 2025475 AMAQI
20th Jul 2025466 AMAQI
20th Jul 2025417 AMAQI
20th Jul 2025388 AMAQI
20th Jul 2025369 AMAQI
20th Jul 20254010 AMAQI
20th Jul 20253611 AMAQI
20th Jul 20253612 PMAQI
20th Jul 2025391 PMAQI
20th Jul 2025382 PMAQI
20th Jul 2025313 PMAQI
20th Jul 2025274 PMAQI
20th Jul 2025325 PMAQI
20th Jul 2025366 PMAQI
20th Jul 2025457 PMAQI
20th Jul 2025488 PMAQI
20th Jul 2025499 PMAQI
20th Jul 20255110 PMAQI
20th Jul 20255211 PMAQI
21st Jul 20255112 AMAQI
21st Jul 2025501 AMAQI
21st Jul 2025492 AMAQI
21st Jul 2025493 AMAQI
21st Jul 2025494 AMAQI
25°C20/30°C
21st Jul 2025495 AMAQI
21st Jul 2025496 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025398 AMAQI
21st Jul 2025459 AMAQI
21st Jul 20254910 AMAQI
21st Jul 20254811 AMAQI
21st Jul 20254412 PMAQI
21st Jul 2025461 PMAQI
21st Jul 2025462 PMAQI
21st Jul 2025413 PMAQI
21st Jul 2025374 PMAQI
21st Jul 2025425 PMAQI
21st Jul 2025476 PMAQI
21st Jul 2025527 PMAQI
21st Jul 2025538 PMAQI
21st Jul 2025529 PMAQI
21st Jul 20255010 PMAQI
21st Jul 20254411 PMAQI
22nd Jul 20254812 AMAQI
22nd Jul 2025501 AMAQI
22nd Jul 2025512 AMAQI
22nd Jul 2025513 AMAQI
22nd Jul 2025514 AMAQI
24°C20/30°C
22nd Jul 2025525 AMAQI
22nd Jul 2025526 AMAQI
22nd Jul 2025447 AMAQI
22nd Jul 2025398 AMAQI
22nd Jul 2025469 AMAQI
22nd Jul 20255110 AMAQI
22nd Jul 20255111 AMAQI
22nd Jul 20254712 PMAQI
22nd Jul 2025411 PMAQI
22nd Jul 2025412 PMAQI
22nd Jul 2025403 PMAQI
22nd Jul 2025354 PMAQI
22nd Jul 2025345 PMAQI
22nd Jul 2025396 PMAQI
22nd Jul 2025477 PMAQI
22nd Jul 2025478 PMAQI
22nd Jul 2025459 PMAQI
22nd Jul 20254410 PMAQI
22nd Jul 20254511 PMAQI
23rd Jul 20254812 AMAQI
23rd Jul 2025481 AMAQI
23rd Jul 2025492 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025504 AMAQI
23°C21/24°C
23rd Jul 2025505 AMAQI
23rd Jul 2025506 AMAQI
23rd Jul 2025327 AMAQI
23rd Jul 2025268 AMAQI
23rd Jul 2025349 AMAQI
23rd Jul 20253610 AMAQI
23rd Jul 20254411 AMAQI
23rd Jul 20254112 PMAQI
23rd Jul 2025321 PMAQI
23rd Jul 2025332 PMAQI
23rd Jul 2025353 PMAQI
23rd Jul 2025324 PMAQI
23rd Jul 2025345 PMAQI
23rd Jul 2025376 PMAQI
23rd Jul 2025417 PMAQI
23rd Jul 2025428 PMAQI
23rd Jul 2025409 PMAQI
23rd Jul 20253910 PMAQI
23rd Jul 20254111 PMAQI
24th Jul 20253912 AMAQI
24th Jul 2025441 AMAQI
24th Jul 2025472 AMAQI
24th Jul 2025453 AMAQI
24th Jul 2025454 AMAQI
22°C21/24°C
24th Jul 2025455 AMAQI
24th Jul 2025456 AMAQI
24th Jul 2025327 AMAQI
24th Jul 2025278 AMAQI
24th Jul 2025299 AMAQI
24th Jul 20253010 AMAQI
24th Jul 20252811 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025281 PMAQI
24th Jul 2025322 PMAQI
24th Jul 2025293 PMAQI
24th Jul 2025314 PMAQI
24th Jul 2025325 PMAQI
24th Jul 2025396 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025378 PMAQI
24th Jul 2025399 PMAQI
24th Jul 20254010 PMAQI
24th Jul 20253911 PMAQI
25th Jul 20254012 AMAQI
25th Jul 2025411 AMAQI
25th Jul 2025402 AMAQI
25th Jul 2025383 AMAQI
25th Jul 2025374 AMAQI
22°C20/25°C
25th Jul 2025385 AMAQI
25th Jul 2025376 AMAQI
25th Jul 2025327 AMAQI
25th Jul 2025328 AMAQI
25th Jul 2025399 AMAQI
25th Jul 20253810 AMAQI
25th Jul 20253611 AMAQI
25th Jul 20253212 PMAQI
25th Jul 2025361 PMAQI
25th Jul 2025312 PMAQI
25th Jul 2025353 PMAQI
25th Jul 2025324 PMAQI
25th Jul 2025325 PMAQI
25th Jul 2025356 PMAQI
25th Jul 2025407 PMAQI
25th Jul 2025418 PMAQI
25th Jul 2025429 PMAQI
25th Jul 20254210 PMAQI
25th Jul 20254311 PMAQI
26th Jul 20254012 AMAQI
26th Jul 2025411 AMAQI
26th Jul 2025392 AMAQI
26th Jul 2025393 AMAQI
26th Jul 2025414 AMAQI
23°C21/25°C
26th Jul 2025405 AMAQI
26th Jul 2025396 AMAQI
26th Jul 2025387 AMAQI
26th Jul 2025378 AMAQI
26th Jul 2025429 AMAQI
26th Jul 20254710 AMAQI
26th Jul 20253611 AMAQI
26th Jul 20253812 PMAQI
26th Jul 2025361 PMAQI
26th Jul 2025392 PMAQI
26th Jul 2025403 PMAQI
26th Jul 2025424 PMAQI
26th Jul 2025395 PMAQI
26th Jul 2025376 PMAQI
26th Jul 2025427 PMAQI
26th Jul 2025428 PMAQI
26th Jul 2025459 PMAQI
26th Jul 20254410 PMAQI
26th Jul 20254211 PMAQI
27th Jul 20254312 AMAQI
27th Jul 2025431 AMAQI
27th Jul 2025412 AMAQI
27th Jul 2025403 AMAQI
27th Jul 2025404 AMAQI
23°C20/26°C
27th Jul 2025405 AMAQI
27th Jul 2025406 AMAQI
27th Jul 2025367 AMAQI
27th Jul 2025358 AMAQI
27th Jul 2025409 AMAQI
27th Jul 20254510 AMAQI
27th Jul 20253811 AMAQI
27th Jul 20254112 PMAQI
27th Jul 2025371 PMAQI
27th Jul 2025332 PMAQI
27th Jul 2025323 PMAQI
27th Jul 2025334 PMAQI
27th Jul 2025305 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025397 PMAQI
27th Jul 2025408 PMAQI
27th Jul 2025409 PMAQI
27th Jul 20254210 PMAQI
27th Jul 20253711 PMAQI
28th Jul 20253912 AMAQI
28th Jul 2025411 AMAQI
28th Jul 2025412 AMAQI
28th Jul 2025413 AMAQI
28th Jul 2025414 AMAQI
23°C21/24°C
28th Jul 2025415 AMAQI
28th Jul 2025406 AMAQI
28th Jul 2025307 AMAQI
28th Jul 2025338 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253310 AMAQI
28th Jul 20254311 AMAQI
28th Jul 20253512 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025322 PMAQI
28th Jul 2025343 PMAQI
28th Jul 2025304 PMAQI
28th Jul 2025305 PMAQI
28th Jul 2025406 PMAQI
28th Jul 2025417 PMAQI
28th Jul 2025448 PMAQI
28th Jul 2025479 PMAQI
28th Jul 20254110 PMAQI
28th Jul 20254211 PMAQI
29th Jul 20254012 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025402 AMAQI
29th Jul 2025413 AMAQI
29th Jul 2025404 AMAQI
23°C22/23°C
29th Jul 2025395 AMAQI
29th Jul 2025396 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025428 AMAQI
29th Jul 2025439 AMAQI
29th Jul 20255210 AMAQI
29th Jul 20254111 AMAQI
29th Jul 20254012 PMAQI
29th Jul 2025411 PMAQI
29th Jul 2025372 PMAQI
29th Jul 2025383 PMAQI
29th Jul 2025384 PMAQI
29th Jul 2025475 PMAQI
29th Jul 2025516 PMAQI
29th Jul 2025527 PMAQI
29th Jul 2025518 PMAQI
29th Jul 2025489 PMAQI
29th Jul 20254810 PMAQI
29th Jul 20254311 PMAQI
30th Jul 20254212 AMAQI
30th Jul 2025421 AMAQI
30th Jul 2025412 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025444 AMAQI
24°C20/29°C
30th Jul 2025455 AMAQI
30th Jul 2025426 AMAQI
30th Jul 2025377 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025399 AMAQI
30th Jul 20253810 AMAQI
30th Jul 20253811 AMAQI
30th Jul 20253812 PMAQI
30th Jul 2025431 PMAQI
30th Jul 2025452 PMAQI
30th Jul 2025413 PMAQI
30th Jul 2025444 PMAQI
30th Jul 2025425 PMAQI
30th Jul 2025406 PMAQI
30th Jul 2025457 PMAQI
30th Jul 2025478 PMAQI
30th Jul 2025479 PMAQI
30th Jul 20254610 PMAQI
30th Jul 20254711 PMAQI
31st Jul 20254612 AMAQI
31st Jul 2025471 AMAQI
31st Jul 2025442 AMAQI
31st Jul 2025443 AMAQI
31st Jul 2025444 AMAQI
26°C22/32°C
31st Jul 2025445 AMAQI
31st Jul 2025446 AMAQI
31st Jul 2025447 AMAQI
31st Jul 2025448 AMAQI
31st Jul 2025519 AMAQI
31st Jul 20255610 AMAQI
31st Jul 20255611 AMAQI
31st Jul 20256112 PMAQI
31st Jul 2025561 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025523 PMAQI
31st Jul 2025544 PMAQI
31st Jul 2025545 PMAQI
31st Jul 2025496 PMAQI
31st Jul 2025567 PMAQI
31st Jul 2025588 PMAQI
31st Jul 2025629 PMAQI
31st Jul 20256010 PMAQI
31st Jul 20255811 PMAQI
1st Aug 20255712 AMAQI
1st Aug 2025571 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025553 AMAQI
1st Aug 2025544 AMAQI
25°C20/32°C
1st Aug 2025545 AMAQI
1st Aug 2025546 AMAQI
1st Aug 2025617 AMAQI
1st Aug 2025608 AMAQI
1st Aug 2025559 AMAQI
1st Aug 20256010 AMAQI
1st Aug 20255811 AMAQI
1st Aug 20256612 PMAQI
1st Aug 2025621 PMAQI
1st Aug 2025552 PMAQI
1st Aug 2025483 PMAQI
1st Aug 2025504 PMAQI
1st Aug 2025525 PMAQI
1st Aug 2025596 PMAQI
1st Aug 2025607 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025569 PMAQI
1st Aug 20255810 PMAQI
1st Aug 20255911 PMAQI
2nd Aug 20255812 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025554 AMAQI
24°C21/30°C
2nd Aug 2025565 AMAQI
2nd Aug 2025566 AMAQI
2nd Aug 2025537 AMAQI
2nd Aug 2025528 AMAQI
2nd Aug 2025569 AMAQI
2nd Aug 20255010 AMAQI
2nd Aug 20255811 AMAQI
2nd Aug 20255112 PMAQI
2nd Aug 2025461 PMAQI
2nd Aug 2025462 PMAQI
2nd Aug 2025483 PMAQI
2nd Aug 2025444 PMAQI
2nd Aug 2025475 PMAQI
2nd Aug 2025466 PMAQI
2nd Aug 2025527 PMAQI
2nd Aug 2025538 PMAQI
2nd Aug 2025579 PMAQI
2nd Aug 20255210 PMAQI
2nd Aug 20255111 PMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
7 PM
46AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
7 AM - 8 AM
39AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 46), while the lowest AQI was between 7 AM to 8 AM (Avg. 39).
Night time
Avg. Highest Time
12 AM - 11 PM
46AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
46AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 46), while the lowest AQI was between 12 AM to 11 PM (Avg. 46).
2025 Days Vs Air Quality
Mae Sai, Chiang Rai, Thailand
2025
27%
58
36%
76
31%
66
6%
13
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
58 DaysModerate
76 DaysPoor
66 DaysUnhealthy
13 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 27%
Health Risk Level:
Very high
In 2025, 27% of 214 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Mae Sai, Chiang Rai, Thailand
AQI levels in 2025
AQI
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.
1st January 2025
90AQI
90AQI
2nd January 2025
86AQI
86AQI
3rd January 2025
79AQI
79AQI
4th January 2025
84AQI
84AQI
5th January 2025
94AQI
94AQI
6th January 2025
111AQI
111AQI
7th January 2025
113AQI
113AQI
8th January 2025
112AQI
112AQI
9th January 2025
119AQI
119AQI
10th January 2025
112AQI
112AQI
11th January 2025
105AQI
105AQI
12th January 2025
93AQI
93AQI
13th January 2025
91AQI
91AQI
14th January 2025
97AQI
97AQI
15th January 2025
107AQI
107AQI
16th January 2025
99AQI
99AQI
17th January 2025
94AQI
94AQI
18th January 2025
97AQI
97AQI
19th January 2025
99AQI
99AQI
20th January 2025
109AQI
109AQI
21st January 2025
121AQI
121AQI
22nd January 2025
125AQI
125AQI
23rd January 2025
124AQI
124AQI
24th January 2025
111AQI
111AQI
25th January 2025
103AQI
103AQI
26th January 2025
101AQI
101AQI
27th January 2025
79AQI
79AQI
28th January 2025
82AQI
82AQI
29th January 2025
97AQI
97AQI
30th January 2025
114AQI
114AQI
31st January 2025
105AQI
105AQI
1st February 2025
102AQI
102AQI
2nd February 2025
109AQI
109AQI
3rd February 2025
109AQI
109AQI
4th February 2025
117AQI
117AQI
5th February 2025
116AQI
116AQI
6th February 2025
114AQI
114AQI
7th February 2025
108AQI
108AQI
8th February 2025
108AQI
108AQI
9th February 2025
91AQI
91AQI
10th February 2025
106AQI
106AQI
11th February 2025
111AQI
111AQI
12th February 2025
111AQI
111AQI
13th February 2025
106AQI
106AQI
14th February 2025
106AQI
106AQI
15th February 2025
102AQI
102AQI
16th February 2025
126AQI
126AQI
17th February 2025
125AQI
125AQI
18th February 2025
126AQI
126AQI
19th February 2025
118AQI
118AQI
20th February 2025
116AQI
116AQI
21st February 2025
110AQI
110AQI
22nd February 2025
107AQI
107AQI
23rd February 2025
100AQI
100AQI
24th February 2025
80AQI
80AQI
25th February 2025
70AQI
70AQI
26th February 2025
61AQI
61AQI
27th February 2025
67AQI
67AQI
28th February 2025
72AQI
72AQI
1st March 2025
75AQI
75AQI
2nd March 2025
82AQI
82AQI
3rd March 2025
96AQI
96AQI
4th March 2025
114AQI
114AQI
5th March 2025
132AQI
132AQI
6th March 2025
129AQI
129AQI
7th March 2025
140AQI
140AQI
8th March 2025
120AQI
120AQI
9th March 2025
112AQI
112AQI
10th March 2025
102AQI
102AQI
11th March 2025
112AQI
112AQI
12th March 2025
120AQI
120AQI
13th March 2025
107AQI
107AQI
14th March 2025
115AQI
115AQI
15th March 2025
133AQI
133AQI
16th March 2025
130AQI
130AQI
17th March 2025
144AQI
144AQI
18th March 2025
131AQI
131AQI
19th March 2025
86AQI
86AQI
20th March 2025
91AQI
91AQI
21st March 2025
103AQI
103AQI
22nd March 2025
130AQI
130AQI
23rd March 2025
140AQI
140AQI
24th March 2025
151AQI
151AQI
25th March 2025
156AQI
156AQI
26th March 2025
157AQI
157AQI
27th March 2025
158AQI
158AQI
28th March 2025
164AQI
164AQI
29th March 2025
164AQI
164AQI
30th March 2025
165AQI
165AQI
31st March 2025
159AQI
159AQI
1st April 2025
153AQI
153AQI
2nd April 2025
151AQI
151AQI
3rd April 2025
151AQI
151AQI
4th April 2025
153AQI
153AQI
5th April 2025
153AQI
153AQI
6th April 2025
146AQI
146AQI
7th April 2025
122AQI
122AQI
8th April 2025
120AQI
120AQI
9th April 2025
138AQI
138AQI
10th April 2025
139AQI
139AQI
11th April 2025
142AQI
142AQI
12th April 2025
113AQI
113AQI
13th April 2025
81AQI
81AQI
14th April 2025
65AQI
65AQI
15th April 2025
60AQI
60AQI
16th April 2025
57AQI
57AQI
17th April 2025
58AQI
58AQI
18th April 2025
57AQI
57AQI
19th April 2025
61AQI
61AQI
20th April 2025
64AQI
64AQI
21st April 2025
69AQI
69AQI
22nd April 2025
85AQI
85AQI
23rd April 2025
90AQI
90AQI
24th April 2025
103AQI
103AQI
25th April 2025
111AQI
111AQI
26th April 2025
114AQI
114AQI
27th April 2025
110AQI
110AQI
28th April 2025
81AQI
81AQI
29th April 2025
74AQI
74AQI
30th April 2025
66AQI
66AQI
1st May 2025
61AQI
61AQI
2nd May 2025
64AQI
64AQI
3rd May 2025
61AQI
61AQI
4th May 2025
63AQI
63AQI
5th May 2025
66AQI
66AQI
6th May 2025
72AQI
72AQI
7th May 2025
83AQI
83AQI
8th May 2025
86AQI
86AQI
9th May 2025
76AQI
76AQI
10th May 2025
88AQI
88AQI
11th May 2025
87AQI
87AQI
12th May 2025
59AQI
59AQI
13th May 2025
64AQI
64AQI
14th May 2025
64AQI
64AQI
15th May 2025
51AQI
51AQI
16th May 2025
51AQI
51AQI
17th May 2025
51AQI
51AQI
18th May 2025
46AQI
46AQI
19th May 2025
47AQI
47AQI
20th May 2025
52AQI
52AQI
21st May 2025
56AQI
56AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
61AQI
61AQI
24th May 2025
50AQI
50AQI
25th May 2025
47AQI
47AQI
26th May 2025
44AQI
44AQI
27th May 2025
50AQI
50AQI
28th May 2025
45AQI
45AQI
29th May 2025
49AQI
49AQI
30th May 2025
46AQI
46AQI
31st May 2025
46AQI
46AQI
1st June 2025
49AQI
49AQI
2nd June 2025
50AQI
50AQI
3rd June 2025
54AQI
54AQI
4th June 2025
60AQI
60AQI
5th June 2025
67AQI
67AQI
6th June 2025
71AQI
71AQI
7th June 2025
69AQI
69AQI
8th June 2025
67AQI
67AQI
9th June 2025
68AQI
68AQI
10th June 2025
54AQI
54AQI
11th June 2025
49AQI
49AQI
12th June 2025
52AQI
52AQI
13th June 2025
54AQI
54AQI
14th June 2025
54AQI
54AQI
15th June 2025
48AQI
48AQI
16th June 2025
45AQI
45AQI
17th June 2025
45AQI
45AQI
18th June 2025
42AQI
42AQI
19th June 2025
43AQI
43AQI
20th June 2025
46AQI
46AQI
21st June 2025
49AQI
49AQI
22nd June 2025
52AQI
52AQI
23rd June 2025
46AQI
46AQI
24th June 2025
47AQI
47AQI
25th June 2025
47AQI
47AQI
26th June 2025
48AQI
48AQI
27th June 2025
44AQI
44AQI
28th June 2025
45AQI
45AQI
29th June 2025
45AQI
45AQI
30th June 2025
47AQI
47AQI
1st July 2025
49AQI
49AQI
2nd July 2025
45AQI
45AQI
3rd July 2025
50AQI
50AQI
4th July 2025
46AQI
46AQI
5th July 2025
45AQI
45AQI
6th July 2025
40AQI
40AQI
7th July 2025
39AQI
39AQI
8th July 2025
42AQI
42AQI
9th July 2025
49AQI
49AQI
10th July 2025
49AQI
49AQI
11th July 2025
47AQI
47AQI
12th July 2025
43AQI
43AQI
13th July 2025
44AQI
44AQI
14th July 2025
44AQI
44AQI
15th July 2025
43AQI
43AQI
16th July 2025
45AQI
45AQI
17th July 2025
47AQI
47AQI
18th July 2025
44AQI
44AQI
19th July 2025
46AQI
46AQI
20th July 2025
44AQI
44AQI
21st July 2025
48AQI
48AQI
22nd July 2025
46AQI
46AQI
23rd July 2025
42AQI
42AQI
24th July 2025
37AQI
37AQI
25th July 2025
38AQI
38AQI
26th July 2025
40AQI
40AQI
27th July 2025
39AQI
39AQI
28th July 2025
38AQI
38AQI
29th July 2025
43AQI
43AQI
30th July 2025
43AQI
43AQI
31st July 2025
51AQI
51AQI
1st August 2025
57AQI
57AQI
102AQI
103AQI
126AQI
103AQI
59AQI
52AQI
44AQI
57AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202584AQI
15
16
7
21
5
18
8
14
11
5
10
21
18
12
30
1
1
58
76
66
13
Highest AQI recorded in
March126AQI
Lowest AQI recorded in
July44AQI
202484AQI
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 recorded in
March178AQI
Lowest AQI recorded in
July34AQI
202399AQI
9
22
2
8
18
7
14
7
3
9
5
8
8
2
16
13
13
17
22
9
21
10
19
11
15
16
1
25
3
21
10
93
136
72
37
15
11
Highest AQI recorded in
April224AQI
Lowest AQI recorded in
July43AQI
202276AQI
4
24
3
1
12
8
3
26
2
2
7
15
6
10
20
1
29
1
26
3
1
19
9
1
12
17
2
1
29
12
19
107
135
75
8
Highest AQI recorded in
March126AQI
Lowest AQI recorded in
July28AQI
202173AQI
1
17
13
4
10
14
9
20
2
2
15
7
5
1
8
15
8
10
10
10
27
4
29
2
28
2
18
13
15
15
7
16
8
149
119
69
25
2
1
Highest AQI recorded in
March163AQI
Lowest AQI recorded in
August32AQI
202067AQI
2
7
4
1
5
6
9
5
9
5
27
3
29
2
31
23
6
1
27
4
9
21
3
26
2
154
72
13
8
16
4
Highest AQI recorded in
March279AQI
Lowest AQI recorded in
August26AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
99AQILeast Polluted Year Recorded
2020(Avg.)
67AQIMae Sai's annual 2025 AQI (84) shows an average percentage change of 7.3% (worsened AQI) compared to previous years: 2020 (67), 2021 (73), 2022 (76), 2023 (99), 2024 (84).
