Chiang Mai, Chiang Mai, 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+
September Air Quality Analysis
Chiang Mai, Chiang Mai, Thailand
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
8th Sep 2022
83AQILowest AQI recorded on
10th Sep 2022
22AQISame Day Analysis (4th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 53 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Sep - 6th Sep 2025
Chiang Mai, Chiang Mai, Thailand
AQI
Day
Night
.
6 AM5th Sep 2025
6 PM
5 AM6th Sep 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9PM5th Sep
64AQI
Avg. Lowest Time
5PM5th Sep
46AQI
In the last 24 hours,
Chiang Mai's AQI reached its highest point of 64 at 9 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 5th Sep and 6th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Chiang Mai, Chiang Mai, Thailand
AugSep
07th - 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 - 04th04th - 05th05th - 06th06th
Day
Night
7th Aug 2025556 AMAQI
7th Aug 2025467 AMAQI
7th Aug 2025548 AMAQI
7th Aug 2025559 AMAQI
7th Aug 20255910 AMAQI
7th Aug 20255611 AMAQI
7th Aug 20255112 PMAQI
7th Aug 2025511 PMAQI
7th Aug 2025502 PMAQI
7th Aug 2025463 PMAQI
7th Aug 2025434 PMAQI
7th Aug 2025405 PMAQI
7th Aug 2025426 PMAQI
7th Aug 2025497 PMAQI
7th Aug 2025488 PMAQI
7th Aug 2025489 PMAQI
7th Aug 20255110 PMAQI
7th Aug 20255211 PMAQI
8th Aug 20255212 AMAQI
8th Aug 2025551 AMAQI
8th Aug 2025542 AMAQI
8th Aug 2025543 AMAQI
8th Aug 2025544 AMAQI
8th Aug 2025545 AMAQI
24°C22/28°C
8th Aug 2025546 AMAQI
8th Aug 2025427 AMAQI
8th Aug 2025428 AMAQI
8th Aug 2025469 AMAQI
8th Aug 20254210 AMAQI
8th Aug 20253511 AMAQI
8th Aug 20253612 PMAQI
8th Aug 2025441 PMAQI
8th Aug 2025502 PMAQI
8th Aug 2025533 PMAQI
8th Aug 2025494 PMAQI
8th Aug 2025445 PMAQI
8th Aug 2025426 PMAQI
8th Aug 2025477 PMAQI
8th Aug 2025498 PMAQI
8th Aug 2025509 PMAQI
8th Aug 20255210 PMAQI
8th Aug 20255311 PMAQI
9th Aug 20255312 AMAQI
9th Aug 2025531 AMAQI
9th Aug 2025522 AMAQI
9th Aug 2025523 AMAQI
9th Aug 2025514 AMAQI
9th Aug 2025515 AMAQI
25°C22/31°C
9th Aug 2025516 AMAQI
9th Aug 2025557 AMAQI
9th Aug 2025608 AMAQI
9th Aug 2025639 AMAQI
9th Aug 20256310 AMAQI
9th Aug 20255911 AMAQI
9th Aug 20255612 PMAQI
9th Aug 2025561 PMAQI
9th Aug 2025562 PMAQI
9th Aug 2025553 PMAQI
9th Aug 2025544 PMAQI
9th Aug 2025505 PMAQI
9th Aug 2025486 PMAQI
9th Aug 2025507 PMAQI
9th Aug 2025498 PMAQI
9th Aug 2025489 PMAQI
9th Aug 20254810 PMAQI
9th Aug 20254811 PMAQI
10th Aug 20254912 AMAQI
10th Aug 2025531 AMAQI
10th Aug 2025532 AMAQI
10th Aug 2025543 AMAQI
10th Aug 2025554 AMAQI
10th Aug 2025555 AMAQI
26°C23/31°C
10th Aug 2025546 AMAQI
10th Aug 2025517 AMAQI
10th Aug 2025478 AMAQI
10th Aug 2025509 AMAQI
10th Aug 20254710 AMAQI
10th Aug 20254211 AMAQI
10th Aug 20253812 PMAQI
10th Aug 2025351 PMAQI
10th Aug 2025372 PMAQI
10th Aug 2025393 PMAQI
10th Aug 2025394 PMAQI
10th Aug 2025405 PMAQI
10th Aug 2025396 PMAQI
10th Aug 2025447 PMAQI
10th Aug 2025468 PMAQI
10th Aug 2025449 PMAQI
10th Aug 20254810 PMAQI
10th Aug 20254611 PMAQI
11th Aug 20254712 AMAQI
11th Aug 2025511 AMAQI
11th Aug 2025522 AMAQI
11th Aug 2025513 AMAQI
11th Aug 2025514 AMAQI
11th Aug 2025515 AMAQI
27°C22/32°C
11th Aug 2025516 AMAQI
11th Aug 2025367 AMAQI
11th Aug 2025338 AMAQI
11th Aug 2025379 AMAQI
11th Aug 20253710 AMAQI
11th Aug 20254011 AMAQI
11th Aug 20254012 PMAQI
11th Aug 2025511 PMAQI
11th Aug 2025452 PMAQI
11th Aug 2025413 PMAQI
11th Aug 2025444 PMAQI
11th Aug 2025475 PMAQI
11th Aug 2025506 PMAQI
11th Aug 2025487 PMAQI
11th Aug 2025488 PMAQI
11th Aug 2025469 PMAQI
11th Aug 20255010 PMAQI
11th Aug 20255011 PMAQI
12th Aug 20254812 AMAQI
12th Aug 2025481 AMAQI
12th Aug 2025492 AMAQI
12th Aug 2025483 AMAQI
12th Aug 2025494 AMAQI
12th Aug 2025495 AMAQI
27°C22/32°C
12th Aug 2025496 AMAQI
12th Aug 2025537 AMAQI
12th Aug 2025548 AMAQI
12th Aug 2025549 AMAQI
12th Aug 20255710 AMAQI
12th Aug 20255611 AMAQI
12th Aug 20255212 PMAQI
12th Aug 2025531 PMAQI
12th Aug 2025542 PMAQI
12th Aug 2025533 PMAQI
12th Aug 2025434 PMAQI
12th Aug 2025515 PMAQI
12th Aug 2025476 PMAQI
12th Aug 2025477 PMAQI
12th Aug 2025518 PMAQI
12th Aug 2025539 PMAQI
12th Aug 20255310 PMAQI
12th Aug 20255311 PMAQI
13th Aug 20254912 AMAQI
13th Aug 2025501 AMAQI
13th Aug 2025502 AMAQI
13th Aug 2025513 AMAQI
13th Aug 2025494 AMAQI
13th Aug 2025495 AMAQI
27°C23/32°C
13th Aug 2025506 AMAQI
13th Aug 2025547 AMAQI
13th Aug 2025548 AMAQI
13th Aug 2025589 AMAQI
13th Aug 20255610 AMAQI
13th Aug 20254911 AMAQI
13th Aug 20254512 PMAQI
13th Aug 2025461 PMAQI
13th Aug 2025462 PMAQI
13th Aug 2025513 PMAQI
13th Aug 2025494 PMAQI
13th Aug 2025515 PMAQI
13th Aug 2025486 PMAQI
13th Aug 2025537 PMAQI
13th Aug 2025528 PMAQI
13th Aug 2025559 PMAQI
13th Aug 20255610 PMAQI
13th Aug 20255311 PMAQI
14th Aug 20255312 AMAQI
14th Aug 2025531 AMAQI
14th Aug 2025492 AMAQI
14th Aug 2025493 AMAQI
14th Aug 2025494 AMAQI
14th Aug 2025495 AMAQI
26°C22/32°C
14th Aug 2025516 AMAQI
14th Aug 2025627 AMAQI
14th Aug 2025638 AMAQI
14th Aug 2025569 AMAQI
14th Aug 20256010 AMAQI
14th Aug 20256111 AMAQI
14th Aug 20255512 PMAQI
14th Aug 2025581 PMAQI
14th Aug 2025572 PMAQI
14th Aug 2025503 PMAQI
14th Aug 2025544 PMAQI
14th Aug 2025475 PMAQI
14th Aug 2025486 PMAQI
14th Aug 2025507 PMAQI
14th Aug 2025538 PMAQI
14th Aug 2025559 PMAQI
14th Aug 20255210 PMAQI
14th Aug 20255211 PMAQI
15th Aug 20255312 AMAQI
15th Aug 2025501 AMAQI
15th Aug 2025512 AMAQI
15th Aug 2025513 AMAQI
15th Aug 2025524 AMAQI
15th Aug 2025525 AMAQI
25°C23/30°C
15th Aug 2025526 AMAQI
15th Aug 2025527 AMAQI
15th Aug 2025498 AMAQI
15th Aug 2025519 AMAQI
15th Aug 20255710 AMAQI
15th Aug 20254311 AMAQI
15th Aug 20253912 PMAQI
15th Aug 2025391 PMAQI
15th Aug 2025412 PMAQI
15th Aug 2025383 PMAQI
15th Aug 2025394 PMAQI
15th Aug 2025415 PMAQI
15th Aug 2025376 PMAQI
15th Aug 2025467 PMAQI
15th Aug 2025538 PMAQI
15th Aug 2025529 PMAQI
15th Aug 20255510 PMAQI
15th Aug 20255111 PMAQI
16th Aug 20255112 AMAQI
16th Aug 2025521 AMAQI
16th Aug 2025532 AMAQI
16th Aug 2025503 AMAQI
16th Aug 2025504 AMAQI
16th Aug 2025505 AMAQI
25°C22/29°C
16th Aug 2025516 AMAQI
16th Aug 2025547 AMAQI
16th Aug 2025518 AMAQI
16th Aug 2025519 AMAQI
16th Aug 20255210 AMAQI
16th Aug 20255411 AMAQI
16th Aug 20255612 PMAQI
16th Aug 2025501 PMAQI
16th Aug 2025452 PMAQI
16th Aug 2025423 PMAQI
16th Aug 2025364 PMAQI
16th Aug 2025435 PMAQI
16th Aug 2025486 PMAQI
16th Aug 2025497 PMAQI
16th Aug 2025558 PMAQI
16th Aug 2025539 PMAQI
16th Aug 20255410 PMAQI
16th Aug 20255211 PMAQI
17th Aug 20254612 AMAQI
17th Aug 2025521 AMAQI
17th Aug 2025492 AMAQI
17th Aug 2025483 AMAQI
17th Aug 2025504 AMAQI
17th Aug 2025505 AMAQI
25°C22/29°C
17th Aug 2025516 AMAQI
17th Aug 2025507 AMAQI
17th Aug 2025488 AMAQI
17th Aug 2025499 AMAQI
17th Aug 20255410 AMAQI
17th Aug 20255911 AMAQI
17th Aug 20255512 PMAQI
17th Aug 2025521 PMAQI
17th Aug 2025502 PMAQI
17th Aug 2025473 PMAQI
17th Aug 2025454 PMAQI
17th Aug 2025405 PMAQI
17th Aug 2025476 PMAQI
17th Aug 2025507 PMAQI
17th Aug 2025518 PMAQI
17th Aug 2025569 PMAQI
17th Aug 20255410 PMAQI
17th Aug 20255111 PMAQI
18th Aug 20254912 AMAQI
18th Aug 2025511 AMAQI
18th Aug 2025532 AMAQI
18th Aug 2025513 AMAQI
18th Aug 2025524 AMAQI
18th Aug 2025515 AMAQI
25°C23/28°C
18th Aug 2025486 AMAQI
18th Aug 2025577 AMAQI
18th Aug 2025568 AMAQI
18th Aug 2025609 AMAQI
18th Aug 20255610 AMAQI
18th Aug 20255611 AMAQI
18th Aug 20255112 PMAQI
18th Aug 2025501 PMAQI
18th Aug 2025502 PMAQI
18th Aug 2025493 PMAQI
18th Aug 2025414 PMAQI
18th Aug 2025545 PMAQI
18th Aug 2025556 PMAQI
18th Aug 2025547 PMAQI
18th Aug 2025558 PMAQI
18th Aug 2025569 PMAQI
18th Aug 20255410 PMAQI
18th Aug 20255011 PMAQI
19th Aug 20255112 AMAQI
19th Aug 2025511 AMAQI
19th Aug 2025522 AMAQI
19th Aug 2025523 AMAQI
19th Aug 2025534 AMAQI
19th Aug 2025525 AMAQI
25°C21/30°C
19th Aug 2025526 AMAQI
19th Aug 2025517 AMAQI
19th Aug 2025508 AMAQI
19th Aug 2025519 AMAQI
19th Aug 20255010 AMAQI
19th Aug 20254711 AMAQI
19th Aug 20254712 PMAQI
19th Aug 2025551 PMAQI
19th Aug 2025492 PMAQI
19th Aug 2025473 PMAQI
19th Aug 2025504 PMAQI
19th Aug 2025505 PMAQI
19th Aug 2025466 PMAQI
19th Aug 2025537 PMAQI
19th Aug 2025538 PMAQI
19th Aug 2025539 PMAQI
19th Aug 20255210 PMAQI
19th Aug 20255211 PMAQI
20th Aug 20255512 AMAQI
20th Aug 2025531 AMAQI
20th Aug 2025522 AMAQI
20th Aug 2025563 AMAQI
20th Aug 2025554 AMAQI
20th Aug 2025535 AMAQI
26°C21/31°C
20th Aug 2025526 AMAQI
20th Aug 2025537 AMAQI
20th Aug 2025518 AMAQI
20th Aug 2025569 AMAQI
20th Aug 20255410 AMAQI
20th Aug 20255111 AMAQI
20th Aug 20255912 PMAQI
20th Aug 2025531 PMAQI
20th Aug 2025512 PMAQI
20th Aug 2025443 PMAQI
20th Aug 2025514 PMAQI
20th Aug 2025505 PMAQI
20th Aug 2025506 PMAQI
20th Aug 2025557 PMAQI
20th Aug 2025578 PMAQI
20th Aug 2025589 PMAQI
20th Aug 20256110 PMAQI
20th Aug 20255811 PMAQI
21st Aug 20255512 AMAQI
21st Aug 2025601 AMAQI
21st Aug 2025542 AMAQI
21st Aug 2025543 AMAQI
21st Aug 2025554 AMAQI
21st Aug 2025545 AMAQI
26°C22/31°C
21st Aug 2025556 AMAQI
21st Aug 2025577 AMAQI
21st Aug 2025558 AMAQI
21st Aug 2025579 AMAQI
21st Aug 20255910 AMAQI
21st Aug 20255811 AMAQI
21st Aug 20255012 PMAQI
21st Aug 2025531 PMAQI
21st Aug 2025522 PMAQI
21st Aug 2025553 PMAQI
21st Aug 2025534 PMAQI
21st Aug 2025545 PMAQI
21st Aug 2025616 PMAQI
21st Aug 2025567 PMAQI
21st Aug 2025588 PMAQI
21st Aug 2025609 PMAQI
21st Aug 20255810 PMAQI
21st Aug 20256311 PMAQI
22nd Aug 20255712 AMAQI
22nd Aug 2025551 AMAQI
22nd Aug 2025562 AMAQI
22nd Aug 2025553 AMAQI
22nd Aug 2025564 AMAQI
22nd Aug 2025565 AMAQI
26°C22/32°C
22nd Aug 2025566 AMAQI
22nd Aug 2025537 AMAQI
22nd Aug 2025548 AMAQI
22nd Aug 2025509 AMAQI
22nd Aug 20255410 AMAQI
22nd Aug 20255411 AMAQI
22nd Aug 20256312 PMAQI
22nd Aug 2025571 PMAQI
22nd Aug 2025622 PMAQI
22nd Aug 2025503 PMAQI
22nd Aug 2025524 PMAQI
22nd Aug 2025505 PMAQI
22nd Aug 2025606 PMAQI
22nd Aug 2025557 PMAQI
22nd Aug 2025588 PMAQI
22nd Aug 2025569 PMAQI
22nd Aug 20255410 PMAQI
22nd Aug 20255411 PMAQI
23rd Aug 20255512 AMAQI
23rd Aug 2025551 AMAQI
23rd Aug 2025562 AMAQI
23rd Aug 2025563 AMAQI
23rd Aug 2025554 AMAQI
23rd Aug 2025555 AMAQI
26°C22/32°C
23rd Aug 2025556 AMAQI
23rd Aug 2025547 AMAQI
23rd Aug 2025468 AMAQI
23rd Aug 2025429 AMAQI
23rd Aug 20255510 AMAQI
23rd Aug 20255311 AMAQI
23rd Aug 20255112 PMAQI
23rd Aug 2025461 PMAQI
23rd Aug 2025472 PMAQI
23rd Aug 2025463 PMAQI
23rd Aug 2025444 PMAQI
23rd Aug 2025485 PMAQI
23rd Aug 2025516 PMAQI
23rd Aug 2025547 PMAQI
23rd Aug 2025588 PMAQI
23rd Aug 2025529 PMAQI
23rd Aug 20255810 PMAQI
23rd Aug 20255611 PMAQI
24th Aug 20256112 AMAQI
24th Aug 2025591 AMAQI
24th Aug 2025552 AMAQI
24th Aug 2025553 AMAQI
24th Aug 2025554 AMAQI
24th Aug 2025535 AMAQI
25°C23/30°C
24th Aug 2025536 AMAQI
24th Aug 2025447 AMAQI
24th Aug 2025518 AMAQI
24th Aug 2025569 AMAQI
24th Aug 20254210 AMAQI
24th Aug 20254811 AMAQI
24th Aug 20254012 PMAQI
24th Aug 2025451 PMAQI
24th Aug 2025492 PMAQI
24th Aug 2025443 PMAQI
24th Aug 2025524 PMAQI
24th Aug 2025425 PMAQI
24th Aug 2025496 PMAQI
24th Aug 2025567 PMAQI
24th Aug 2025568 PMAQI
24th Aug 2025589 PMAQI
24th Aug 20255910 PMAQI
24th Aug 20255711 PMAQI
25th Aug 20255612 AMAQI
25th Aug 2025561 AMAQI
25th Aug 2025542 AMAQI
25th Aug 2025533 AMAQI
25th Aug 2025534 AMAQI
25th Aug 2025535 AMAQI
25°C22/32°C
25th Aug 2025536 AMAQI
25th Aug 2025487 AMAQI
25th Aug 2025538 AMAQI
25th Aug 2025479 AMAQI
25th Aug 20255710 AMAQI
25th Aug 20255411 AMAQI
25th Aug 20255412 PMAQI
25th Aug 2025481 PMAQI
25th Aug 2025492 PMAQI
25th Aug 2025513 PMAQI
25th Aug 2025524 PMAQI
25th Aug 2025465 PMAQI
25th Aug 2025536 PMAQI
25th Aug 2025567 PMAQI
25th Aug 2025568 PMAQI
25th Aug 2025609 PMAQI
25th Aug 20255710 PMAQI
25th Aug 20255411 PMAQI
26th Aug 20255612 AMAQI
26th Aug 2025561 AMAQI
26th Aug 2025542 AMAQI
26th Aug 2025543 AMAQI
26th Aug 2025544 AMAQI
26th Aug 2025545 AMAQI
26°C22/33°C
26th Aug 2025536 AMAQI
26th Aug 2025497 AMAQI
26th Aug 2025608 AMAQI
26th Aug 2025579 AMAQI
26th Aug 20255810 AMAQI
26th Aug 20255311 AMAQI
26th Aug 20256412 PMAQI
26th Aug 2025521 PMAQI
26th Aug 2025392 PMAQI
26th Aug 2025453 PMAQI
26th Aug 2025414 PMAQI
26th Aug 2025325 PMAQI
26th Aug 2025436 PMAQI
26th Aug 2025537 PMAQI
26th Aug 2025538 PMAQI
26th Aug 2025519 PMAQI
26th Aug 20255210 PMAQI
26th Aug 20255611 PMAQI
27th Aug 20255112 AMAQI
27th Aug 2025551 AMAQI
27th Aug 2025552 AMAQI
27th Aug 2025543 AMAQI
27th Aug 2025534 AMAQI
27th Aug 2025555 AMAQI
23°C22/24°C
27th Aug 2025556 AMAQI
27th Aug 2025507 AMAQI
27th Aug 2025518 AMAQI
27th Aug 2025549 AMAQI
27th Aug 20254910 AMAQI
27th Aug 20254811 AMAQI
27th Aug 20253912 PMAQI
27th Aug 2025421 PMAQI
27th Aug 2025452 PMAQI
27th Aug 2025423 PMAQI
27th Aug 2025464 PMAQI
27th Aug 2025455 PMAQI
27th Aug 2025526 PMAQI
27th Aug 2025537 PMAQI
27th Aug 2025548 PMAQI
27th Aug 2025589 PMAQI
27th Aug 20255510 PMAQI
27th Aug 20255611 PMAQI
28th Aug 20255312 AMAQI
28th Aug 2025531 AMAQI
28th Aug 2025532 AMAQI
28th Aug 2025533 AMAQI
28th Aug 2025524 AMAQI
28th Aug 2025535 AMAQI
22°C22/23°C
28th Aug 2025536 AMAQI
28th Aug 2025437 AMAQI
28th Aug 2025488 AMAQI
28th Aug 2025439 AMAQI
28th Aug 20254710 AMAQI
28th Aug 20254911 AMAQI
28th Aug 20255512 PMAQI
28th Aug 2025531 PMAQI
28th Aug 2025552 PMAQI
28th Aug 2025513 PMAQI
28th Aug 2025484 PMAQI
28th Aug 2025495 PMAQI
28th Aug 2025486 PMAQI
28th Aug 2025507 PMAQI
28th Aug 2025528 PMAQI
28th Aug 2025559 PMAQI
28th Aug 20255910 PMAQI
28th Aug 20255611 PMAQI
29th Aug 20255912 AMAQI
29th Aug 2025551 AMAQI
29th Aug 2025542 AMAQI
29th Aug 2025553 AMAQI
29th Aug 2025544 AMAQI
29th Aug 2025525 AMAQI
22°C21/26°C
29th Aug 2025536 AMAQI
29th Aug 2025537 AMAQI
29th Aug 2025578 AMAQI
29th Aug 2025509 AMAQI
29th Aug 20255010 AMAQI
29th Aug 20255211 AMAQI
29th Aug 20255312 PMAQI
29th Aug 2025531 PMAQI
29th Aug 2025532 PMAQI
29th Aug 2025493 PMAQI
29th Aug 2025484 PMAQI
29th Aug 2025475 PMAQI
29th Aug 2025476 PMAQI
29th Aug 2025537 PMAQI
29th Aug 2025548 PMAQI
29th Aug 2025569 PMAQI
29th Aug 20255510 PMAQI
29th Aug 20255511 PMAQI
30th Aug 20255712 AMAQI
30th Aug 2025571 AMAQI
30th Aug 2025552 AMAQI
30th Aug 2025563 AMAQI
30th Aug 2025544 AMAQI
30th Aug 2025545 AMAQI
25°C20/31°C
30th Aug 2025556 AMAQI
30th Aug 2025557 AMAQI
30th Aug 2025568 AMAQI
30th Aug 2025539 AMAQI
30th Aug 20255610 AMAQI
30th Aug 20255611 AMAQI
30th Aug 20255412 PMAQI
30th Aug 2025491 PMAQI
30th Aug 2025522 PMAQI
30th Aug 2025533 PMAQI
30th Aug 2025484 PMAQI
30th Aug 2025495 PMAQI
30th Aug 2025526 PMAQI
30th Aug 2025537 PMAQI
30th Aug 2025568 PMAQI
30th Aug 2025609 PMAQI
30th Aug 20255610 PMAQI
30th Aug 20255811 PMAQI
31st Aug 20255712 AMAQI
31st Aug 2025571 AMAQI
31st Aug 2025542 AMAQI
31st Aug 2025543 AMAQI
31st Aug 2025544 AMAQI
31st Aug 2025545 AMAQI
26°C21/33°C
31st Aug 2025546 AMAQI
31st Aug 2025497 AMAQI
31st Aug 2025568 AMAQI
31st Aug 2025569 AMAQI
31st Aug 20255510 AMAQI
31st Aug 20255211 AMAQI
31st Aug 20255212 PMAQI
31st Aug 2025451 PMAQI
31st Aug 2025462 PMAQI
31st Aug 2025463 PMAQI
31st Aug 2025474 PMAQI
31st Aug 2025465 PMAQI
31st Aug 2025506 PMAQI
31st Aug 2025547 PMAQI
31st Aug 2025548 PMAQI
31st Aug 2025549 PMAQI
31st Aug 20255610 PMAQI
31st Aug 20255611 PMAQI
1st Sep 20255212 AMAQI
1st Sep 2025541 AMAQI
1st Sep 2025532 AMAQI
1st Sep 2025543 AMAQI
1st Sep 2025544 AMAQI
1st Sep 2025545 AMAQI
24°C22/27°C
1st Sep 2025546 AMAQI
1st Sep 2025537 AMAQI
1st Sep 2025578 AMAQI
1st Sep 2025569 AMAQI
1st Sep 20255410 AMAQI
1st Sep 20256011 AMAQI
1st Sep 20255212 PMAQI
1st Sep 2025521 PMAQI
1st Sep 2025542 PMAQI
1st Sep 2025563 PMAQI
1st Sep 2025534 PMAQI
1st Sep 2025465 PMAQI
1st Sep 2025536 PMAQI
1st Sep 2025587 PMAQI
1st Sep 2025588 PMAQI
1st Sep 2025559 PMAQI
1st Sep 20256010 PMAQI
1st Sep 20255811 PMAQI
2nd Sep 20255412 AMAQI
2nd Sep 2025551 AMAQI
2nd Sep 2025542 AMAQI
2nd Sep 2025543 AMAQI
2nd Sep 2025544 AMAQI
2nd Sep 2025545 AMAQI
24°C22/28°C
2nd Sep 2025546 AMAQI
2nd Sep 2025577 AMAQI
2nd Sep 2025548 AMAQI
2nd Sep 2025659 AMAQI
2nd Sep 20255910 AMAQI
2nd Sep 20255311 AMAQI
2nd Sep 20255212 PMAQI
2nd Sep 2025521 PMAQI
2nd Sep 2025522 PMAQI
2nd Sep 2025563 PMAQI
2nd Sep 2025524 PMAQI
2nd Sep 2025575 PMAQI
2nd Sep 2025566 PMAQI
2nd Sep 2025587 PMAQI
2nd Sep 2025578 PMAQI
2nd Sep 2025579 PMAQI
2nd Sep 20255610 PMAQI
2nd Sep 20256011 PMAQI
3rd Sep 20255512 AMAQI
3rd Sep 2025561 AMAQI
3rd Sep 2025542 AMAQI
3rd Sep 2025543 AMAQI
3rd Sep 2025534 AMAQI
3rd Sep 2025535 AMAQI
25°C22/31°C
3rd Sep 2025546 AMAQI
3rd Sep 2025607 AMAQI
3rd Sep 2025638 AMAQI
3rd Sep 2025719 AMAQI
3rd Sep 20256710 AMAQI
3rd Sep 20256611 AMAQI
3rd Sep 20256212 PMAQI
3rd Sep 2025561 PMAQI
3rd Sep 2025492 PMAQI
3rd Sep 2025523 PMAQI
3rd Sep 2025584 PMAQI
3rd Sep 2025495 PMAQI
3rd Sep 2025526 PMAQI
3rd Sep 2025597 PMAQI
3rd Sep 2025618 PMAQI
3rd Sep 2025649 PMAQI
3rd Sep 20256510 PMAQI
3rd Sep 20256211 PMAQI
4th Sep 20255512 AMAQI
4th Sep 2025621 AMAQI
4th Sep 2025552 AMAQI
4th Sep 2025543 AMAQI
4th Sep 2025544 AMAQI
4th Sep 2025555 AMAQI
26°C22/32°C
4th Sep 2025556 AMAQI
4th Sep 2025687 AMAQI
4th Sep 2025588 AMAQI
4th Sep 2025639 AMAQI
4th Sep 20255910 AMAQI
4th Sep 20255811 AMAQI
4th Sep 20254912 PMAQI
4th Sep 2025501 PMAQI
4th Sep 2025542 PMAQI
4th Sep 2025583 PMAQI
4th Sep 2025474 PMAQI
4th Sep 2025475 PMAQI
4th Sep 2025466 PMAQI
4th Sep 2025407 PMAQI
4th Sep 2025408 PMAQI
4th Sep 2025429 PMAQI
4th Sep 20254410 PMAQI
4th Sep 20255211 PMAQI
5th Sep 20255412 AMAQI
5th Sep 2025561 AMAQI
5th Sep 2025552 AMAQI
5th Sep 2025553 AMAQI
5th Sep 2025564 AMAQI
5th Sep 2025555 AMAQI
26°C23/33°C
5th Sep 2025556 AMAQI
5th Sep 2025547 AMAQI
5th Sep 2025518 AMAQI
5th Sep 2025599 AMAQI
5th Sep 20255610 AMAQI
5th Sep 20256211 AMAQI
5th Sep 20255812 PMAQI
5th Sep 2025561 PMAQI
5th Sep 2025522 PMAQI
5th Sep 2025543 PMAQI
5th Sep 2025554 PMAQI
5th Sep 2025465 PMAQI
5th Sep 2025566 PMAQI
5th Sep 2025557 PMAQI
5th Sep 2025628 PMAQI
5th Sep 2025649 PMAQI
5th Sep 20256410 PMAQI
5th Sep 20256011 PMAQI
6th Sep 20255812 AMAQI
6th Sep 2025581 AMAQI
--°C/°C
6 AM
12 PM
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 11 AM
53AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
12 PM - 5 PM
49AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 11 AM (Avg. 53), while the lowest AQI was between 12 PM to 5 PM (Avg. 49).
Night time
Avg. Highest Time
8 PM - 11 PM
54AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 7 PM
53AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 54), while the lowest AQI was between 12 AM to 7 PM (Avg. 53).
2025 Days Vs Air Quality
Chiang Mai, Chiang Mai, Thailand
2025
9%
22
69%
170
20%
49
2%
6
Total number of days with different AQI categories in last 248 days in 2025 (117 days remaining)
Good
22 DaysModerate
170 DaysPoor
49 DaysUnhealthy
6 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 9%
Health Risk Level:
Extreme
In 2025, 9% of 248 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
Chiang Mai, Chiang Mai, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
91AQI
91AQI
2nd January 2025
89AQI
89AQI
3rd January 2025
87AQI
87AQI
4th January 2025
91AQI
91AQI
5th January 2025
96AQI
96AQI
6th January 2025
104AQI
104AQI
7th January 2025
108AQI
108AQI
8th January 2025
111AQI
111AQI
9th January 2025
125AQI
125AQI
10th January 2025
113AQI
113AQI
11th January 2025
94AQI
94AQI
12th January 2025
88AQI
88AQI
13th January 2025
92AQI
92AQI
14th January 2025
96AQI
96AQI
15th January 2025
95AQI
95AQI
16th January 2025
89AQI
89AQI
17th January 2025
90AQI
90AQI
18th January 2025
89AQI
89AQI
19th January 2025
90AQI
90AQI
20th January 2025
102AQI
102AQI
21st January 2025
115AQI
115AQI
22nd January 2025
112AQI
112AQI
23rd January 2025
116AQI
116AQI
24th January 2025
109AQI
109AQI
25th January 2025
97AQI
97AQI
26th January 2025
95AQI
95AQI
27th January 2025
103AQI
103AQI
28th January 2025
85AQI
85AQI
29th January 2025
104AQI
104AQI
30th January 2025
118AQI
118AQI
31st January 2025
94AQI
94AQI
1st February 2025
95AQI
95AQI
2nd February 2025
92AQI
92AQI
3rd February 2025
101AQI
101AQI
4th February 2025
114AQI
114AQI
5th February 2025
116AQI
116AQI
6th February 2025
105AQI
105AQI
7th February 2025
108AQI
108AQI
8th February 2025
115AQI
115AQI
9th February 2025
100AQI
100AQI
10th February 2025
93AQI
93AQI
11th February 2025
101AQI
101AQI
12th February 2025
96AQI
96AQI
13th February 2025
91AQI
91AQI
14th February 2025
88AQI
88AQI
15th February 2025
91AQI
91AQI
16th February 2025
112AQI
112AQI
17th February 2025
111AQI
111AQI
18th February 2025
112AQI
112AQI
19th February 2025
110AQI
110AQI
20th February 2025
106AQI
106AQI
21st February 2025
98AQI
98AQI
22nd February 2025
100AQI
100AQI
23rd February 2025
94AQI
94AQI
24th February 2025
82AQI
82AQI
25th February 2025
79AQI
79AQI
26th February 2025
70AQI
70AQI
27th February 2025
73AQI
73AQI
28th February 2025
75AQI
75AQI
1st March 2025
77AQI
77AQI
2nd March 2025
77AQI
77AQI
3rd March 2025
91AQI
91AQI
4th March 2025
105AQI
105AQI
5th March 2025
129AQI
129AQI
6th March 2025
113AQI
113AQI
7th March 2025
122AQI
122AQI
8th March 2025
105AQI
105AQI
9th March 2025
97AQI
97AQI
10th March 2025
87AQI
87AQI
11th March 2025
94AQI
94AQI
12th March 2025
95AQI
95AQI
13th March 2025
85AQI
85AQI
14th March 2025
98AQI
98AQI
15th March 2025
125AQI
125AQI
16th March 2025
129AQI
129AQI
17th March 2025
150AQI
150AQI
18th March 2025
133AQI
133AQI
19th March 2025
126AQI
126AQI
20th March 2025
100AQI
100AQI
21st March 2025
129AQI
129AQI
22nd March 2025
142AQI
142AQI
23rd March 2025
155AQI
155AQI
24th March 2025
152AQI
152AQI
25th March 2025
148AQI
148AQI
26th March 2025
136AQI
136AQI
27th March 2025
149AQI
149AQI
28th March 2025
154AQI
154AQI
29th March 2025
159AQI
159AQI
30th March 2025
162AQI
162AQI
31st March 2025
152AQI
152AQI
1st April 2025
140AQI
140AQI
2nd April 2025
137AQI
137AQI
3rd April 2025
131AQI
131AQI
4th April 2025
125AQI
125AQI
5th April 2025
119AQI
119AQI
6th April 2025
108AQI
108AQI
7th April 2025
92AQI
92AQI
8th April 2025
86AQI
86AQI
9th April 2025
94AQI
94AQI
10th April 2025
111AQI
111AQI
11th April 2025
97AQI
97AQI
12th April 2025
90AQI
90AQI
13th April 2025
81AQI
81AQI
14th April 2025
75AQI
75AQI
15th April 2025
73AQI
73AQI
16th April 2025
70AQI
70AQI
17th April 2025
70AQI
70AQI
18th April 2025
67AQI
67AQI
19th April 2025
69AQI
69AQI
20th April 2025
72AQI
72AQI
21st April 2025
75AQI
75AQI
22nd April 2025
81AQI
81AQI
23rd April 2025
84AQI
84AQI
24th April 2025
99AQI
99AQI
25th April 2025
109AQI
109AQI
26th April 2025
107AQI
107AQI
27th April 2025
100AQI
100AQI
28th April 2025
87AQI
87AQI
29th April 2025
81AQI
81AQI
30th April 2025
73AQI
73AQI
1st May 2025
71AQI
71AQI
2nd May 2025
66AQI
66AQI
3rd May 2025
62AQI
62AQI
4th May 2025
66AQI
66AQI
5th May 2025
63AQI
63AQI
6th May 2025
73AQI
73AQI
7th May 2025
72AQI
72AQI
8th May 2025
76AQI
76AQI
9th May 2025
82AQI
82AQI
10th May 2025
86AQI
86AQI
11th May 2025
84AQI
84AQI
12th May 2025
72AQI
72AQI
13th May 2025
66AQI
66AQI
14th May 2025
63AQI
63AQI
15th May 2025
54AQI
54AQI
16th May 2025
54AQI
54AQI
17th May 2025
56AQI
56AQI
18th May 2025
53AQI
53AQI
19th May 2025
55AQI
55AQI
20th May 2025
58AQI
58AQI
21st May 2025
58AQI
58AQI
22nd May 2025
60AQI
60AQI
23rd May 2025
55AQI
55AQI
24th May 2025
51AQI
51AQI
25th May 2025
49AQI
49AQI
26th May 2025
49AQI
49AQI
27th May 2025
50AQI
50AQI
28th May 2025
45AQI
45AQI
29th May 2025
47AQI
47AQI
30th May 2025
48AQI
48AQI
31st May 2025
48AQI
48AQI
1st June 2025
46AQI
46AQI
2nd June 2025
46AQI
46AQI
3rd June 2025
59AQI
59AQI
4th June 2025
69AQI
69AQI
5th June 2025
69AQI
69AQI
6th June 2025
71AQI
71AQI
7th June 2025
66AQI
66AQI
8th June 2025
61AQI
61AQI
9th June 2025
61AQI
61AQI
10th June 2025
55AQI
55AQI
11th June 2025
49AQI
49AQI
12th June 2025
49AQI
49AQI
13th June 2025
50AQI
50AQI
14th June 2025
50AQI
50AQI
15th June 2025
48AQI
48AQI
16th June 2025
45AQI
45AQI
17th June 2025
49AQI
49AQI
18th June 2025
54AQI
54AQI
19th June 2025
54AQI
54AQI
20th June 2025
56AQI
56AQI
21st June 2025
57AQI
57AQI
22nd June 2025
55AQI
55AQI
23rd June 2025
56AQI
56AQI
24th June 2025
59AQI
59AQI
25th June 2025
60AQI
60AQI
26th June 2025
62AQI
62AQI
27th June 2025
62AQI
62AQI
28th June 2025
62AQI
62AQI
29th June 2025
64AQI
64AQI
30th June 2025
67AQI
67AQI
1st July 2025
69AQI
69AQI
2nd July 2025
65AQI
65AQI
3rd July 2025
65AQI
65AQI
4th July 2025
64AQI
64AQI
5th July 2025
66AQI
66AQI
6th July 2025
63AQI
63AQI
7th July 2025
61AQI
61AQI
8th July 2025
62AQI
62AQI
9th July 2025
63AQI
63AQI
10th July 2025
65AQI
65AQI
11th July 2025
65AQI
65AQI
12th July 2025
62AQI
62AQI
13th July 2025
61AQI
61AQI
14th July 2025
60AQI
60AQI
15th July 2025
59AQI
59AQI
16th July 2025
60AQI
60AQI
17th July 2025
59AQI
59AQI
18th July 2025
57AQI
57AQI
19th July 2025
55AQI
55AQI
20th July 2025
55AQI
55AQI
21st July 2025
57AQI
57AQI
22nd July 2025
59AQI
59AQI
23rd July 2025
57AQI
57AQI
24th July 2025
57AQI
57AQI
25th July 2025
56AQI
56AQI
26th July 2025
61AQI
61AQI
27th July 2025
61AQI
61AQI
28th July 2025
59AQI
59AQI
29th July 2025
59AQI
59AQI
30th July 2025
59AQI
59AQI
31st July 2025
62AQI
62AQI
1st August 2025
57AQI
57AQI
2nd August 2025
57AQI
57AQI
3rd August 2025
57AQI
57AQI
4th August 2025
57AQI
57AQI
5th August 2025
55AQI
55AQI
6th August 2025
53AQI
53AQI
7th August 2025
51AQI
51AQI
8th August 2025
49AQI
49AQI
9th August 2025
53AQI
53AQI
10th August 2025
46AQI
46AQI
11th August 2025
46AQI
46AQI
12th August 2025
50AQI
50AQI
13th August 2025
51AQI
51AQI
14th August 2025
53AQI
53AQI
15th August 2025
48AQI
48AQI
16th August 2025
51AQI
51AQI
17th August 2025
49AQI
49AQI
18th August 2025
52AQI
52AQI
19th August 2025
51AQI
51AQI
20th August 2025
55AQI
55AQI
21st August 2025
56AQI
56AQI
22nd August 2025
56AQI
56AQI
23rd August 2025
53AQI
53AQI
24th August 2025
53AQI
53AQI
25th August 2025
53AQI
53AQI
26th August 2025
52AQI
52AQI
27th August 2025
51AQI
51AQI
28th August 2025
51AQI
51AQI
29th August 2025
54AQI
54AQI
30th August 2025
55AQI
55AQI
31st August 2025
53AQI
53AQI
1st September 2025
54AQI
54AQI
2nd September 2025
55AQI
55AQI
3rd September 2025
58AQI
58AQI
4th September 2025
53AQI
53AQI
5th September 2025
6th September 2025
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
16th September 2025
17th September 2025
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
100AQI
97AQI
122AQI
93AQI
61AQI
57AQI
61AQI
53AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202580AQI
18
13
16
12
10
15
6
21
9
7
24
9
21
31
6
25
4
22
170
49
6
Highest AQI recorded in
March122AQI
Lowest AQI recorded in
August53AQI
202491AQI
8
23
4
22
3
9
22
6
24
19
5
7
27
3
25
6
5
26
12
18
5
26
30
31
74
171
65
56
Highest AQI recorded in
April163AQI
Lowest AQI recorded in
June46AQI
202397AQI
12
19
5
9
13
1
7
15
9
8
9
10
3
20
11
18
12
29
2
2
29
6
24
12
19
2
24
3
2
29
69
149
86
37
20
3
Highest AQI recorded in
April195AQI
Lowest AQI recorded in
July37AQI
202274AQI
31
19
5
7
24
1
9
15
5
10
21
22
8
23
1
2
1
20
9
12
18
1
3
26
1
13
18
93
163
64
5
Highest AQI recorded in
April113AQI
Lowest AQI recorded in
July36AQI
202177AQI
8
23
1
5
18
4
9
22
3
17
7
3
6
25
23
7
25
6
23
8
24
6
16
15
4
26
27
4
125
150
61
29
Highest AQI recorded in
March158AQI
Lowest AQI recorded in
July42AQI
202063AQI
3
9
1
2
13
6
1
8
11
30
28
3
26
5
20
10
24
7
1
29
1
30
138
97
16
15
2
Highest AQI recorded in
March167AQI
Lowest AQI recorded in
June33AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
97AQILeast Polluted Year Recorded
2020(Avg.)
63AQIChiang Mai's annual 2025 AQI (80) shows an average percentage change of 1.6% (worsened AQI) compared to previous years: 2020 (63), 2021 (77), 2022 (74), 2023 (97), 2024 (91).
