Maesai Health Office, 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
Maesai Health Office, Mae Sai, Chiang Rai, Thailand
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
14th Aug 2023
72AQILowest AQI recorded on
18th Aug 2024
28AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 56 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
Maesai Health Office, Mae Sai, Chiang Rai, Thailand
AQI
Day
Night
.
5 AM2nd Aug 2025
7 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
5AM2nd Aug
56AQI
Avg. Lowest Time
3PM2nd Aug
42AQI
Night time
Avg. Highest Time
9PM2nd Aug
57AQI
Avg. Lowest Time
11PM2nd Aug
50AQI
In the last 24 hours,
Maesai Health Office's AQI reached its highest point of 57 at 9 PM during the Night, while the lowest point, 42, was recorded at 3 PM during the Day between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Maesai Health Office, 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 2025516 AMAQI
4th Jul 2025387 AMAQI
4th Jul 2025388 AMAQI
4th Jul 2025469 AMAQI
4th Jul 20255110 AMAQI
4th Jul 20254811 AMAQI
4th Jul 20254612 PMAQI
4th Jul 2025461 PMAQI
4th Jul 2025442 PMAQI
4th Jul 2025383 PMAQI
4th Jul 2025414 PMAQI
4th Jul 2025425 PMAQI
4th Jul 2025486 PMAQI
4th Jul 2025487 PMAQI
4th Jul 2025518 PMAQI
4th Jul 2025549 PMAQI
4th Jul 20255410 PMAQI
4th Jul 20254611 PMAQI
5th Jul 20255012 AMAQI
5th Jul 2025481 AMAQI
5th Jul 2025462 AMAQI
5th Jul 2025463 AMAQI
5th Jul 2025464 AMAQI
23°C21/26°C
5th Jul 2025455 AMAQI
5th Jul 2025466 AMAQI
5th Jul 2025387 AMAQI
5th Jul 2025418 AMAQI
5th Jul 2025449 AMAQI
5th Jul 20255010 AMAQI
5th Jul 20255511 AMAQI
5th Jul 20255312 PMAQI
5th Jul 2025501 PMAQI
5th Jul 2025482 PMAQI
5th Jul 2025493 PMAQI
5th Jul 2025424 PMAQI
5th Jul 2025485 PMAQI
5th Jul 2025426 PMAQI
5th Jul 2025467 PMAQI
5th Jul 2025518 PMAQI
5th Jul 2025529 PMAQI
5th Jul 20254910 PMAQI
5th Jul 20254811 PMAQI
6th Jul 20254612 AMAQI
6th Jul 2025461 AMAQI
6th Jul 2025422 AMAQI
6th Jul 2025443 AMAQI
6th Jul 2025444 AMAQI
24°C22/27°C
6th Jul 2025435 AMAQI
6th Jul 2025446 AMAQI
6th Jul 2025367 AMAQI
6th Jul 2025238 AMAQI
6th Jul 2025269 AMAQI
6th Jul 20253110 AMAQI
6th Jul 20254411 AMAQI
6th Jul 20254112 PMAQI
6th Jul 2025421 PMAQI
6th Jul 2025362 PMAQI
6th Jul 2025383 PMAQI
6th Jul 2025394 PMAQI
6th Jul 2025365 PMAQI
6th Jul 2025406 PMAQI
6th Jul 2025467 PMAQI
6th Jul 2025448 PMAQI
6th Jul 2025449 PMAQI
6th Jul 20254510 PMAQI
6th Jul 20254411 PMAQI
7th Jul 20254412 AMAQI
7th Jul 2025431 AMAQI
7th Jul 2025422 AMAQI
7th Jul 2025413 AMAQI
7th Jul 2025404 AMAQI
23°C20/24°C
7th Jul 2025405 AMAQI
7th Jul 2025406 AMAQI
7th Jul 2025297 AMAQI
7th Jul 2025328 AMAQI
7th Jul 2025409 AMAQI
7th Jul 20253810 AMAQI
7th Jul 20254611 AMAQI
7th Jul 20254812 PMAQI
7th Jul 2025431 PMAQI
7th Jul 2025412 PMAQI
7th Jul 2025433 PMAQI
7th Jul 2025404 PMAQI
7th Jul 2025405 PMAQI
7th Jul 2025416 PMAQI
7th Jul 2025467 PMAQI
7th Jul 2025508 PMAQI
7th Jul 2025529 PMAQI
7th Jul 20254610 PMAQI
7th Jul 20254011 PMAQI
8th Jul 20253812 AMAQI
8th Jul 2025371 AMAQI
8th Jul 2025382 AMAQI
8th Jul 2025393 AMAQI
8th Jul 2025384 AMAQI
23°C20/25°C
8th Jul 2025385 AMAQI
8th Jul 2025406 AMAQI
8th Jul 2025287 AMAQI
8th Jul 2025328 AMAQI
8th Jul 2025449 AMAQI
8th Jul 20253210 AMAQI
8th Jul 20254411 AMAQI
8th Jul 20255012 PMAQI
8th Jul 2025501 PMAQI
8th Jul 2025382 PMAQI
8th Jul 2025433 PMAQI
8th Jul 2025544 PMAQI
8th Jul 2025535 PMAQI
8th Jul 2025506 PMAQI
8th Jul 2025517 PMAQI
8th Jul 2025548 PMAQI
8th Jul 2025549 PMAQI
8th Jul 20255210 PMAQI
8th Jul 20255011 PMAQI
9th Jul 20255312 AMAQI
9th Jul 2025461 AMAQI
9th Jul 2025372 AMAQI
9th Jul 2025373 AMAQI
9th Jul 2025364 AMAQI
25°C22/31°C
9th Jul 2025365 AMAQI
9th Jul 2025386 AMAQI
9th Jul 2025467 AMAQI
9th Jul 2025538 AMAQI
9th Jul 2025589 AMAQI
9th Jul 20255810 AMAQI
9th Jul 20256411 AMAQI
9th Jul 20255612 PMAQI
9th Jul 2025571 PMAQI
9th Jul 2025582 PMAQI
9th Jul 2025563 PMAQI
9th Jul 2025574 PMAQI
9th Jul 2025585 PMAQI
9th Jul 2025546 PMAQI
9th Jul 2025527 PMAQI
9th Jul 2025548 PMAQI
9th Jul 2025549 PMAQI
9th Jul 20255210 PMAQI
9th Jul 20255111 PMAQI
10th Jul 20254812 AMAQI
10th Jul 2025461 AMAQI
10th Jul 2025452 AMAQI
10th Jul 2025463 AMAQI
10th Jul 2025464 AMAQI
25°C20/29°C
10th Jul 2025465 AMAQI
10th Jul 2025466 AMAQI
10th Jul 2025467 AMAQI
10th Jul 2025478 AMAQI
10th Jul 2025529 AMAQI
10th Jul 20255310 AMAQI
10th Jul 20255511 AMAQI
10th Jul 20255812 PMAQI
10th Jul 2025561 PMAQI
10th Jul 2025582 PMAQI
10th Jul 2025543 PMAQI
10th Jul 2025534 PMAQI
10th Jul 2025565 PMAQI
10th Jul 2025556 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025528 PMAQI
10th Jul 2025539 PMAQI
10th Jul 20255010 PMAQI
10th Jul 20254911 PMAQI
11th Jul 20255012 AMAQI
11th Jul 2025481 AMAQI
11th Jul 2025472 AMAQI
11th Jul 2025493 AMAQI
11th Jul 2025494 AMAQI
24°C20/29°C
11th Jul 2025485 AMAQI
11th Jul 2025486 AMAQI
11th Jul 2025337 AMAQI
11th Jul 2025488 AMAQI
11th Jul 2025529 AMAQI
11th Jul 20255310 AMAQI
11th Jul 20255611 AMAQI
11th Jul 20255412 PMAQI
11th Jul 2025511 PMAQI
11th Jul 2025502 PMAQI
11th Jul 2025543 PMAQI
11th Jul 2025554 PMAQI
11th Jul 2025495 PMAQI
11th Jul 2025386 PMAQI
11th Jul 2025457 PMAQI
11th Jul 2025438 PMAQI
11th Jul 2025429 PMAQI
11th Jul 20254910 PMAQI
11th Jul 20254811 PMAQI
12th Jul 20254912 AMAQI
12th Jul 2025481 AMAQI
12th Jul 2025482 AMAQI
12th Jul 2025473 AMAQI
12th Jul 2025474 AMAQI
23°C20/26°C
12th Jul 2025485 AMAQI
12th Jul 2025476 AMAQI
12th Jul 2025477 AMAQI
12th Jul 2025488 AMAQI
12th Jul 2025419 AMAQI
12th Jul 20254910 AMAQI
12th Jul 20254711 AMAQI
12th Jul 20254912 PMAQI
12th Jul 2025481 PMAQI
12th Jul 2025412 PMAQI
12th Jul 2025353 PMAQI
12th Jul 2025404 PMAQI
12th Jul 2025415 PMAQI
12th Jul 2025476 PMAQI
12th Jul 2025437 PMAQI
12th Jul 2025468 PMAQI
12th Jul 2025399 PMAQI
12th Jul 20254010 PMAQI
12th Jul 20254011 PMAQI
13th Jul 20254412 AMAQI
13th Jul 2025481 AMAQI
13th Jul 2025472 AMAQI
13th Jul 2025463 AMAQI
13th Jul 2025444 AMAQI
24°C20/29°C
13th Jul 2025465 AMAQI
13th Jul 2025466 AMAQI
13th Jul 2025407 AMAQI
13th Jul 2025408 AMAQI
13th Jul 2025439 AMAQI
13th Jul 20255210 AMAQI
13th Jul 20255511 AMAQI
13th Jul 20255412 PMAQI
13th Jul 2025541 PMAQI
13th Jul 2025502 PMAQI
13th Jul 2025463 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025445 PMAQI
13th Jul 2025446 PMAQI
13th Jul 2025527 PMAQI
13th Jul 2025508 PMAQI
13th Jul 2025529 PMAQI
13th Jul 20255310 PMAQI
13th Jul 20255111 PMAQI
14th Jul 20255312 AMAQI
14th Jul 2025491 AMAQI
14th Jul 2025402 AMAQI
14th Jul 2025453 AMAQI
14th Jul 2025464 AMAQI
24°C20/30°C
14th Jul 2025445 AMAQI
14th Jul 2025446 AMAQI
14th Jul 2025467 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025569 AMAQI
14th Jul 20255610 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255412 PMAQI
14th Jul 2025501 PMAQI
14th Jul 2025532 PMAQI
14th Jul 2025463 PMAQI
14th Jul 2025444 PMAQI
14th Jul 2025395 PMAQI
14th Jul 2025386 PMAQI
14th Jul 2025427 PMAQI
14th Jul 2025428 PMAQI
14th Jul 2025449 PMAQI
14th Jul 20254210 PMAQI
14th Jul 20254611 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025471 AMAQI
15th Jul 2025482 AMAQI
15th Jul 2025493 AMAQI
15th Jul 2025474 AMAQI
24°C21/30°C
15th Jul 2025475 AMAQI
15th Jul 2025466 AMAQI
15th Jul 2025357 AMAQI
15th Jul 2025288 AMAQI
15th Jul 2025289 AMAQI
15th Jul 20254410 AMAQI
15th Jul 20254911 AMAQI
15th Jul 20254412 PMAQI
15th Jul 2025451 PMAQI
15th Jul 2025372 PMAQI
15th Jul 2025393 PMAQI
15th Jul 2025474 PMAQI
15th Jul 2025405 PMAQI
15th Jul 2025506 PMAQI
15th Jul 2025447 PMAQI
15th Jul 2025448 PMAQI
15th Jul 2025479 PMAQI
15th Jul 20254810 PMAQI
15th Jul 20254611 PMAQI
16th Jul 20255212 AMAQI
16th Jul 2025501 AMAQI
16th Jul 2025472 AMAQI
16th Jul 2025453 AMAQI
16th Jul 2025444 AMAQI
23°C21/26°C
16th Jul 2025445 AMAQI
16th Jul 2025436 AMAQI
16th Jul 2025377 AMAQI
16th Jul 2025398 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20254810 AMAQI
16th Jul 20254711 AMAQI
16th Jul 20254112 PMAQI
16th Jul 2025361 PMAQI
16th Jul 2025472 PMAQI
16th Jul 2025383 PMAQI
16th Jul 2025434 PMAQI
16th Jul 2025465 PMAQI
16th Jul 2025446 PMAQI
16th Jul 2025477 PMAQI
16th Jul 2025528 PMAQI
16th Jul 2025519 PMAQI
16th Jul 20255010 PMAQI
16th Jul 20254511 PMAQI
17th Jul 20254812 AMAQI
17th Jul 2025481 AMAQI
17th Jul 2025472 AMAQI
17th Jul 2025463 AMAQI
17th Jul 2025444 AMAQI
23°C21/26°C
17th Jul 2025445 AMAQI
17th Jul 2025446 AMAQI
17th Jul 2025347 AMAQI
17th Jul 2025338 AMAQI
17th Jul 2025429 AMAQI
17th Jul 20255310 AMAQI
17th Jul 20255411 AMAQI
17th Jul 20255412 PMAQI
17th Jul 2025491 PMAQI
17th Jul 2025482 PMAQI
17th Jul 2025483 PMAQI
17th Jul 2025464 PMAQI
17th Jul 2025515 PMAQI
17th Jul 2025466 PMAQI
17th Jul 2025537 PMAQI
17th Jul 2025548 PMAQI
17th Jul 2025569 PMAQI
17th Jul 20255810 PMAQI
17th Jul 20255511 PMAQI
18th Jul 20254712 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025472 AMAQI
18th Jul 2025463 AMAQI
18th Jul 2025454 AMAQI
22°C21/24°C
18th Jul 2025465 AMAQI
18th Jul 2025456 AMAQI
18th Jul 2025447 AMAQI
18th Jul 2025468 AMAQI
18th Jul 2025479 AMAQI
18th Jul 20253710 AMAQI
18th Jul 20253711 AMAQI
18th Jul 20255012 PMAQI
18th Jul 2025541 PMAQI
18th Jul 2025462 PMAQI
18th Jul 2025443 PMAQI
18th Jul 2025374 PMAQI
18th Jul 2025385 PMAQI
18th Jul 2025406 PMAQI
18th Jul 2025477 PMAQI
18th Jul 2025518 PMAQI
18th Jul 2025479 PMAQI
18th Jul 20255110 PMAQI
18th Jul 20255311 PMAQI
19th Jul 20254912 AMAQI
19th Jul 2025501 AMAQI
19th Jul 2025502 AMAQI
19th Jul 2025503 AMAQI
19th Jul 2025474 AMAQI
23°C20/28°C
19th Jul 2025485 AMAQI
19th Jul 2025476 AMAQI
19th Jul 2025417 AMAQI
19th Jul 2025458 AMAQI
19th Jul 2025469 AMAQI
19th Jul 20254710 AMAQI
19th Jul 20255111 AMAQI
19th Jul 20255212 PMAQI
19th Jul 2025531 PMAQI
19th Jul 2025442 PMAQI
19th Jul 2025473 PMAQI
19th Jul 2025474 PMAQI
19th Jul 2025445 PMAQI
19th Jul 2025516 PMAQI
19th Jul 2025547 PMAQI
19th Jul 2025568 PMAQI
19th Jul 2025549 PMAQI
19th Jul 20255110 PMAQI
19th Jul 20255011 PMAQI
20th Jul 20255312 AMAQI
20th Jul 2025541 AMAQI
20th Jul 2025512 AMAQI
20th Jul 2025523 AMAQI
20th Jul 2025524 AMAQI
24°C19/31°C
20th Jul 2025515 AMAQI
20th Jul 2025516 AMAQI
20th Jul 2025417 AMAQI
20th Jul 2025358 AMAQI
20th Jul 2025359 AMAQI
20th Jul 20253910 AMAQI
20th Jul 20253411 AMAQI
20th Jul 20253512 PMAQI
20th Jul 2025381 PMAQI
20th Jul 2025382 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025325 PMAQI
20th Jul 2025376 PMAQI
20th Jul 2025477 PMAQI
20th Jul 2025508 PMAQI
20th Jul 2025509 PMAQI
20th Jul 20255510 PMAQI
20th Jul 20255411 PMAQI
21st Jul 20255212 AMAQI
21st Jul 2025531 AMAQI
21st Jul 2025512 AMAQI
21st Jul 2025503 AMAQI
21st Jul 2025514 AMAQI
25°C20/30°C
21st Jul 2025515 AMAQI
21st Jul 2025506 AMAQI
21st Jul 2025427 AMAQI
21st Jul 2025448 AMAQI
21st Jul 2025479 AMAQI
21st Jul 20255310 AMAQI
21st Jul 20255311 AMAQI
21st Jul 20255212 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025463 PMAQI
21st Jul 2025424 PMAQI
21st Jul 2025465 PMAQI
21st Jul 2025516 PMAQI
21st Jul 2025537 PMAQI
21st Jul 2025548 PMAQI
21st Jul 2025539 PMAQI
21st Jul 20255210 PMAQI
21st Jul 20254411 PMAQI
22nd Jul 20255012 AMAQI
22nd Jul 2025521 AMAQI
22nd Jul 2025522 AMAQI
22nd Jul 2025523 AMAQI
22nd Jul 2025524 AMAQI
24°C20/30°C
22nd Jul 2025525 AMAQI
22nd Jul 2025526 AMAQI
22nd Jul 2025467 AMAQI
22nd Jul 2025418 AMAQI
22nd Jul 2025509 AMAQI
22nd Jul 20255410 AMAQI
22nd Jul 20255811 AMAQI
22nd Jul 20255612 PMAQI
22nd Jul 2025501 PMAQI
22nd Jul 2025512 PMAQI
22nd Jul 2025503 PMAQI
22nd Jul 2025394 PMAQI
22nd Jul 2025405 PMAQI
22nd Jul 2025466 PMAQI
22nd Jul 2025497 PMAQI
22nd Jul 2025518 PMAQI
22nd Jul 2025469 PMAQI
22nd Jul 20254710 PMAQI
22nd Jul 20254711 PMAQI
23rd Jul 20254912 AMAQI
23rd Jul 2025491 AMAQI
23rd Jul 2025522 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025524 AMAQI
23°C21/24°C
23rd Jul 2025525 AMAQI
23rd Jul 2025526 AMAQI
23rd Jul 2025337 AMAQI
23rd Jul 2025268 AMAQI
23rd Jul 2025369 AMAQI
23rd Jul 20253810 AMAQI
23rd Jul 20254711 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025301 PMAQI
23rd Jul 2025332 PMAQI
23rd Jul 2025343 PMAQI
23rd Jul 2025324 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025366 PMAQI
23rd Jul 2025417 PMAQI
23rd Jul 2025438 PMAQI
23rd Jul 2025409 PMAQI
23rd Jul 20253810 PMAQI
23rd Jul 20254211 PMAQI
24th Jul 20253812 AMAQI
24th Jul 2025431 AMAQI
24th Jul 2025462 AMAQI
24th Jul 2025453 AMAQI
24th Jul 2025434 AMAQI
22°C21/24°C
24th Jul 2025445 AMAQI
24th Jul 2025446 AMAQI
24th Jul 2025327 AMAQI
24th Jul 2025268 AMAQI
24th Jul 2025309 AMAQI
24th Jul 20253310 AMAQI
24th Jul 20253011 AMAQI
24th Jul 20252512 PMAQI
24th Jul 2025331 PMAQI
24th Jul 2025392 PMAQI
24th Jul 2025363 PMAQI
24th Jul 2025464 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025466 PMAQI
24th Jul 2025457 PMAQI
24th Jul 2025468 PMAQI
24th Jul 2025519 PMAQI
24th Jul 20254810 PMAQI
24th Jul 20254411 PMAQI
25th Jul 20254512 AMAQI
25th Jul 2025451 AMAQI
25th Jul 2025412 AMAQI
25th Jul 2025393 AMAQI
25th Jul 2025384 AMAQI
22°C20/25°C
25th Jul 2025385 AMAQI
25th Jul 2025386 AMAQI
25th Jul 2025347 AMAQI
25th Jul 2025368 AMAQI
25th Jul 2025459 AMAQI
25th Jul 20254610 AMAQI
25th Jul 20254511 AMAQI
25th Jul 20254012 PMAQI
25th Jul 2025391 PMAQI
25th Jul 2025422 PMAQI
25th Jul 2025503 PMAQI
25th Jul 2025444 PMAQI
25th Jul 2025445 PMAQI
25th Jul 2025456 PMAQI
25th Jul 2025457 PMAQI
25th Jul 2025468 PMAQI
25th Jul 2025509 PMAQI
25th Jul 20255210 PMAQI
25th Jul 20255211 PMAQI
26th Jul 20254212 AMAQI
26th Jul 2025411 AMAQI
26th Jul 2025402 AMAQI
26th Jul 2025403 AMAQI
26th Jul 2025404 AMAQI
23°C21/25°C
26th Jul 2025405 AMAQI
26th Jul 2025396 AMAQI
26th Jul 2025387 AMAQI
26th Jul 2025448 AMAQI
26th Jul 2025519 AMAQI
26th Jul 20255610 AMAQI
26th Jul 20254811 AMAQI
26th Jul 20254412 PMAQI
26th Jul 2025441 PMAQI
26th Jul 2025522 PMAQI
26th Jul 2025543 PMAQI
26th Jul 2025544 PMAQI
26th Jul 2025485 PMAQI
26th Jul 2025426 PMAQI
26th Jul 2025447 PMAQI
26th Jul 2025468 PMAQI
26th Jul 2025539 PMAQI
26th Jul 20254910 PMAQI
26th Jul 20254511 PMAQI
27th Jul 20254812 AMAQI
27th Jul 2025461 AMAQI
27th Jul 2025412 AMAQI
27th Jul 2025403 AMAQI
27th Jul 2025414 AMAQI
23°C20/26°C
27th Jul 2025425 AMAQI
27th Jul 2025416 AMAQI
27th Jul 2025387 AMAQI
27th Jul 2025368 AMAQI
27th Jul 2025429 AMAQI
27th Jul 20255210 AMAQI
27th Jul 20254811 AMAQI
27th Jul 20255212 PMAQI
27th Jul 2025501 PMAQI
27th Jul 2025422 PMAQI
27th Jul 2025423 PMAQI
27th Jul 2025394 PMAQI
27th Jul 2025345 PMAQI
27th Jul 2025356 PMAQI
27th Jul 2025427 PMAQI
27th Jul 2025468 PMAQI
27th Jul 2025489 PMAQI
27th Jul 20254910 PMAQI
27th Jul 20253811 PMAQI
28th Jul 20254212 AMAQI
28th Jul 2025421 AMAQI
28th Jul 2025412 AMAQI
28th Jul 2025423 AMAQI
28th Jul 2025404 AMAQI
23°C21/24°C
28th Jul 2025425 AMAQI
28th Jul 2025416 AMAQI
28th Jul 2025327 AMAQI
28th Jul 2025328 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253610 AMAQI
28th Jul 20255011 AMAQI
28th Jul 20253712 PMAQI
28th Jul 2025361 PMAQI
28th Jul 2025332 PMAQI
28th Jul 2025333 PMAQI
28th Jul 2025284 PMAQI
28th Jul 2025275 PMAQI
28th Jul 2025436 PMAQI
28th Jul 2025457 PMAQI
28th Jul 2025528 PMAQI
28th Jul 2025529 PMAQI
28th Jul 20254710 PMAQI
28th Jul 20254711 PMAQI
29th Jul 20254512 AMAQI
29th Jul 2025441 AMAQI
29th Jul 2025402 AMAQI
29th Jul 2025403 AMAQI
29th Jul 2025404 AMAQI
23°C22/23°C
29th Jul 2025395 AMAQI
29th Jul 2025386 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025498 AMAQI
29th Jul 2025539 AMAQI
29th Jul 20255910 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255212 PMAQI
29th Jul 2025481 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025533 PMAQI
29th Jul 2025484 PMAQI
29th Jul 2025585 PMAQI
29th Jul 2025596 PMAQI
29th Jul 2025607 PMAQI
29th Jul 2025588 PMAQI
29th Jul 2025549 PMAQI
29th Jul 20255110 PMAQI
29th Jul 20254411 PMAQI
30th Jul 20254412 AMAQI
30th Jul 2025431 AMAQI
30th Jul 2025422 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025464 AMAQI
24°C20/29°C
30th Jul 2025445 AMAQI
30th Jul 2025426 AMAQI
30th Jul 2025387 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025439 AMAQI
30th Jul 20254410 AMAQI
30th Jul 20254611 AMAQI
30th Jul 20255012 PMAQI
30th Jul 2025571 PMAQI
30th Jul 2025562 PMAQI
30th Jul 2025513 PMAQI
30th Jul 2025484 PMAQI
30th Jul 2025525 PMAQI
30th Jul 2025456 PMAQI
30th Jul 2025467 PMAQI
30th Jul 2025468 PMAQI
30th Jul 2025489 PMAQI
30th Jul 20254510 PMAQI
30th Jul 20254611 PMAQI
31st Jul 20254812 AMAQI
31st Jul 2025471 AMAQI
31st Jul 2025422 AMAQI
31st Jul 2025423 AMAQI
31st Jul 2025424 AMAQI
26°C22/32°C
31st Jul 2025425 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025529 AMAQI
31st Jul 20256010 AMAQI
31st Jul 20256211 AMAQI
31st Jul 20256412 PMAQI
31st Jul 2025621 PMAQI
31st Jul 2025662 PMAQI
31st Jul 2025583 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025605 PMAQI
31st Jul 2025536 PMAQI
31st Jul 2025567 PMAQI
31st Jul 2025588 PMAQI
31st Jul 2025619 PMAQI
31st Jul 20255910 PMAQI
31st Jul 20255811 PMAQI
1st Aug 20255712 AMAQI
1st Aug 2025571 AMAQI
1st Aug 2025542 AMAQI
1st Aug 2025553 AMAQI
1st Aug 2025544 AMAQI
25°C20/32°C
1st Aug 2025545 AMAQI
1st Aug 2025546 AMAQI
1st Aug 2025607 AMAQI
1st Aug 2025618 AMAQI
1st Aug 2025569 AMAQI
1st Aug 20255910 AMAQI
1st Aug 20255911 AMAQI
1st Aug 20256612 PMAQI
1st Aug 2025611 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025483 PMAQI
1st Aug 2025504 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025606 PMAQI
1st Aug 2025617 PMAQI
1st Aug 2025588 PMAQI
1st Aug 2025569 PMAQI
1st Aug 20256010 PMAQI
1st Aug 20255811 PMAQI
2nd Aug 20255912 AMAQI
2nd Aug 2025571 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025564 AMAQI
24°C21/30°C
2nd Aug 2025565 AMAQI
2nd Aug 2025566 AMAQI
2nd Aug 2025547 AMAQI
2nd Aug 2025528 AMAQI
2nd Aug 2025549 AMAQI
2nd Aug 20255010 AMAQI
2nd Aug 20255611 AMAQI
2nd Aug 20255212 PMAQI
2nd Aug 2025431 PMAQI
2nd Aug 2025462 PMAQI
2nd Aug 2025423 PMAQI
2nd Aug 2025444 PMAQI
2nd Aug 2025465 PMAQI
2nd Aug 2025466 PMAQI
2nd Aug 2025507 PMAQI
2nd Aug 2025528 PMAQI
2nd Aug 2025579 PMAQI
2nd Aug 20255010 PMAQI
2nd Aug 20255011 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025571 AMAQI
3rd Aug 2025562 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025554 AMAQI
25°C20/32°C
3rd Aug 2025565 AMAQI
5 AM3rd Aug 2025566 AMAQI
3rd Aug 2025507 AMAQI
3rd Aug 2025538 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20255911 AMAQI
3rd Aug 20254712 PMAQI
12 PM3rd Aug 2025531 PMAQI
3rd Aug 2025492 PMAQI
3rd Aug 2025513 PMAQI
3rd Aug 2025504 PMAQI
3rd Aug 2025495 PMAQI
3rd Aug 2025506 PMAQI
3rd Aug 2025557 PMAQI
7 PM3rd Aug 2025598 PMAQI
3rd Aug 2025599 PMAQI
3rd Aug 20255510 PMAQI
3rd Aug 20255911 PMAQI
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
10 AM - 7 PM
47AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
7 AM - 8 AM
41AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 7 PM (Avg. 47), while the lowest AQI was between 7 AM to 8 AM (Avg. 41).
Night time
Avg. Highest Time
8 PM - 11 PM
50AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 4 AM
47AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 50), while the lowest AQI was between 12 AM to 4 AM (Avg. 47).
2025 Days Vs Air Quality
Maesai Health Office, Mae Sai, Chiang Rai, Thailand
2025
17%
37
46%
98
30%
65
7%
14
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
37 DaysModerate
98 DaysPoor
65 DaysUnhealthy
14 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 17%
Health Risk Level:
Extreme
In 2025, 17% of 215 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Maesai Health Office, 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
93AQI
93AQI
2nd January 2025
92AQI
92AQI
3rd January 2025
81AQI
81AQI
4th January 2025
84AQI
84AQI
5th January 2025
96AQI
96AQI
6th January 2025
112AQI
112AQI
7th January 2025
117AQI
117AQI
8th January 2025
113AQI
113AQI
9th January 2025
119AQI
119AQI
10th January 2025
116AQI
116AQI
11th January 2025
108AQI
108AQI
12th January 2025
95AQI
95AQI
13th January 2025
90AQI
90AQI
14th January 2025
96AQI
96AQI
15th January 2025
107AQI
107AQI
16th January 2025
102AQI
102AQI
17th January 2025
96AQI
96AQI
18th January 2025
98AQI
98AQI
19th January 2025
100AQI
100AQI
20th January 2025
110AQI
110AQI
21st January 2025
125AQI
125AQI
22nd January 2025
129AQI
129AQI
23rd January 2025
127AQI
127AQI
24th January 2025
107AQI
107AQI
25th January 2025
105AQI
105AQI
26th January 2025
97AQI
97AQI
27th January 2025
82AQI
82AQI
28th January 2025
84AQI
84AQI
29th January 2025
98AQI
98AQI
30th January 2025
119AQI
119AQI
31st January 2025
109AQI
109AQI
1st February 2025
101AQI
101AQI
2nd February 2025
117AQI
117AQI
3rd February 2025
110AQI
110AQI
4th February 2025
120AQI
120AQI
5th February 2025
120AQI
120AQI
6th February 2025
117AQI
117AQI
7th February 2025
108AQI
108AQI
8th February 2025
109AQI
109AQI
9th February 2025
92AQI
92AQI
10th February 2025
109AQI
109AQI
11th February 2025
114AQI
114AQI
12th February 2025
114AQI
114AQI
13th February 2025
104AQI
104AQI
14th February 2025
109AQI
109AQI
15th February 2025
101AQI
101AQI
16th February 2025
126AQI
126AQI
17th February 2025
127AQI
127AQI
18th February 2025
126AQI
126AQI
19th February 2025
123AQI
123AQI
20th February 2025
120AQI
120AQI
21st February 2025
114AQI
114AQI
22nd February 2025
110AQI
110AQI
23rd February 2025
104AQI
104AQI
24th February 2025
85AQI
85AQI
25th February 2025
73AQI
73AQI
26th February 2025
62AQI
62AQI
27th February 2025
68AQI
68AQI
28th February 2025
73AQI
73AQI
1st March 2025
79AQI
79AQI
2nd March 2025
84AQI
84AQI
3rd March 2025
98AQI
98AQI
4th March 2025
118AQI
118AQI
5th March 2025
135AQI
135AQI
6th March 2025
133AQI
133AQI
7th March 2025
144AQI
144AQI
8th March 2025
126AQI
126AQI
9th March 2025
117AQI
117AQI
10th March 2025
104AQI
104AQI
11th March 2025
117AQI
117AQI
12th March 2025
127AQI
127AQI
13th March 2025
114AQI
114AQI
14th March 2025
125AQI
125AQI
15th March 2025
133AQI
133AQI
16th March 2025
132AQI
132AQI
17th March 2025
145AQI
145AQI
18th March 2025
133AQI
133AQI
19th March 2025
86AQI
86AQI
20th March 2025
89AQI
89AQI
21st March 2025
100AQI
100AQI
22nd March 2025
128AQI
128AQI
23rd March 2025
137AQI
137AQI
24th March 2025
151AQI
151AQI
25th March 2025
154AQI
154AQI
26th March 2025
157AQI
157AQI
27th March 2025
159AQI
159AQI
28th March 2025
164AQI
164AQI
29th March 2025
163AQI
163AQI
30th March 2025
165AQI
165AQI
31st March 2025
159AQI
159AQI
1st April 2025
154AQI
154AQI
2nd April 2025
152AQI
152AQI
3rd April 2025
151AQI
151AQI
4th April 2025
155AQI
155AQI
5th April 2025
156AQI
156AQI
6th April 2025
151AQI
151AQI
7th April 2025
132AQI
132AQI
8th April 2025
130AQI
130AQI
9th April 2025
142AQI
142AQI
10th April 2025
145AQI
145AQI
11th April 2025
150AQI
150AQI
12th April 2025
127AQI
127AQI
13th April 2025
88AQI
88AQI
14th April 2025
72AQI
72AQI
15th April 2025
63AQI
63AQI
16th April 2025
60AQI
60AQI
17th April 2025
61AQI
61AQI
18th April 2025
60AQI
60AQI
19th April 2025
64AQI
64AQI
20th April 2025
68AQI
68AQI
21st April 2025
72AQI
72AQI
22nd April 2025
88AQI
88AQI
23rd April 2025
91AQI
91AQI
24th April 2025
106AQI
106AQI
25th April 2025
113AQI
113AQI
26th April 2025
119AQI
119AQI
27th April 2025
114AQI
114AQI
28th April 2025
84AQI
84AQI
29th April 2025
77AQI
77AQI
30th April 2025
67AQI
67AQI
1st May 2025
63AQI
63AQI
2nd May 2025
65AQI
65AQI
3rd May 2025
62AQI
62AQI
4th May 2025
66AQI
66AQI
5th May 2025
69AQI
69AQI
6th May 2025
75AQI
75AQI
7th May 2025
85AQI
85AQI
8th May 2025
89AQI
89AQI
9th May 2025
83AQI
83AQI
10th May 2025
96AQI
96AQI
11th May 2025
91AQI
91AQI
12th May 2025
66AQI
66AQI
13th May 2025
68AQI
68AQI
14th May 2025
64AQI
64AQI
15th May 2025
55AQI
55AQI
16th May 2025
57AQI
57AQI
17th May 2025
53AQI
53AQI
18th May 2025
52AQI
52AQI
19th May 2025
54AQI
54AQI
20th May 2025
59AQI
59AQI
21st May 2025
60AQI
60AQI
22nd May 2025
62AQI
62AQI
23rd May 2025
69AQI
69AQI
24th May 2025
58AQI
58AQI
25th May 2025
55AQI
55AQI
26th May 2025
51AQI
51AQI
27th May 2025
57AQI
57AQI
28th May 2025
50AQI
50AQI
29th May 2025
54AQI
54AQI
30th May 2025
51AQI
51AQI
31st May 2025
54AQI
54AQI
1st June 2025
56AQI
56AQI
2nd June 2025
57AQI
57AQI
3rd June 2025
60AQI
60AQI
4th June 2025
65AQI
65AQI
5th June 2025
71AQI
71AQI
6th June 2025
76AQI
76AQI
7th June 2025
71AQI
71AQI
8th June 2025
71AQI
71AQI
9th June 2025
72AQI
72AQI
10th June 2025
60AQI
60AQI
11th June 2025
54AQI
54AQI
12th June 2025
59AQI
59AQI
13th June 2025
60AQI
60AQI
14th June 2025
58AQI
58AQI
15th June 2025
53AQI
53AQI
16th June 2025
53AQI
53AQI
17th June 2025
50AQI
50AQI
18th June 2025
48AQI
48AQI
19th June 2025
46AQI
46AQI
20th June 2025
50AQI
50AQI
21st June 2025
54AQI
54AQI
22nd June 2025
60AQI
60AQI
23rd June 2025
51AQI
51AQI
24th June 2025
50AQI
50AQI
25th June 2025
50AQI
50AQI
26th June 2025
52AQI
52AQI
27th June 2025
47AQI
47AQI
28th June 2025
47AQI
47AQI
29th June 2025
49AQI
49AQI
30th June 2025
51AQI
51AQI
1st July 2025
52AQI
52AQI
2nd July 2025
48AQI
48AQI
3rd July 2025
52AQI
52AQI
4th July 2025
48AQI
48AQI
5th July 2025
48AQI
48AQI
6th July 2025
41AQI
41AQI
7th July 2025
42AQI
42AQI
8th July 2025
44AQI
44AQI
9th July 2025
50AQI
50AQI
10th July 2025
51AQI
51AQI
11th July 2025
48AQI
48AQI
12th July 2025
45AQI
45AQI
13th July 2025
48AQI
48AQI
14th July 2025
46AQI
46AQI
15th July 2025
44AQI
44AQI
16th July 2025
45AQI
45AQI
17th July 2025
49AQI
49AQI
18th July 2025
46AQI
46AQI
19th July 2025
49AQI
49AQI
20th July 2025
44AQI
44AQI
21st July 2025
50AQI
50AQI
22nd July 2025
49AQI
49AQI
23rd July 2025
42AQI
42AQI
24th July 2025
40AQI
40AQI
25th July 2025
43AQI
43AQI
26th July 2025
45AQI
45AQI
27th July 2025
43AQI
43AQI
28th July 2025
40AQI
40AQI
29th July 2025
49AQI
49AQI
30th July 2025
46AQI
46AQI
31st July 2025
53AQI
53AQI
1st August 2025
57AQI
57AQI
2nd August 2025
56AQI
56AQI
103AQI
106AQI
128AQI
107AQI
64AQI
57AQI
46AQI
57AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202587AQI
15
16
6
22
6
17
8
14
10
6
1
30
9
21
27
4
2
37
98
65
14
Highest AQI recorded in
March128AQI
Lowest AQI recorded in
July46AQI
202488AQI
25
6
4
24
1
1
5
17
8
13
11
6
1
19
5
6
12
18
21
10
29
2
14
13
3
6
25
5
25
31
88
173
56
35
14
Highest AQI recorded in
March176AQI
Lowest AQI recorded in
August42AQI
202399AQI
19
12
4
9
15
6
17
4
4
8
6
8
8
1
19
11
6
24
15
16
9
22
14
16
9
22
26
3
28
3
54
196
52
38
12
12
Highest AQI recorded in
April231AQI
Lowest AQI recorded in
July51AQI
202277AQI
1
28
2
17
4
8
22
1
1
8
14
7
6
24
1
11
19
21
3
2
1
16
13
7
23
1
1
29
1
17
13
67
190
57
8
Highest AQI recorded in
April122AQI
Lowest AQI recorded in
July43AQI
202189AQI
1
11
13
5
2
3
12
11
1
12
16
2
11
10
5
1
3
5
19
6
15
15
26
5
24
7
26
4
18
12
8
22
26
5
125
135
47
33
17
5
Highest AQI recorded in
March228AQI
Lowest AQI recorded in
July42AQI
202071AQI
1
1
1
8
2
1
6
6
8
2
11
5
23
6
1
28
3
28
2
23
5
27
4
6
24
2
22
7
139
79
19
8
16
2
Highest AQI recorded in
March241AQI
Lowest AQI recorded in
June35AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
99AQILeast Polluted Year Recorded
2020(Avg.)
71AQIMaesai Health Office's annual 2025 AQI (87) shows an average percentage change of 4.07% (worsened AQI) compared to previous years: 2020 (71), 2021 (89), 2022 (77), 2023 (99), 2024 (88).
