Omkoi District, 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
Omkoi District, Chiang Mai, Thailand
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Sep 2023
113AQILowest AQI recorded on
17th Sep 2023
0AQISame Day Analysis (28th September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 16 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Omkoi District, Chiang Mai, Thailand
AQI
Day
Night
.
6 AM29th Sep 2025
6 PM
5 AM30th Sep 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
10AM29th Sep
51AQI
Avg. Lowest Time
5AM30th Sep
28AQI
In the last 24 hours,
Omkoi District's AQI reached its highest point of 51 at 10 AM during the Night, while the lowest point, 28, was recorded at 5 AM during the Night between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Omkoi District, Chiang Mai, Thailand
AugSep
31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 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
Day
Night
31st Aug 2025526 AMAQI
31st Aug 2025507 AMAQI
31st Aug 2025488 AMAQI
31st Aug 2025529 AMAQI
31st Aug 20255010 AMAQI
31st Aug 20255311 AMAQI
31st Aug 20255012 PMAQI
31st Aug 2025481 PMAQI
31st Aug 2025522 PMAQI
31st Aug 2025513 PMAQI
31st Aug 2025434 PMAQI
31st Aug 2025475 PMAQI
31st Aug 2025516 PMAQI
31st Aug 2025507 PMAQI
31st Aug 2025548 PMAQI
31st Aug 2025579 PMAQI
31st Aug 20255510 PMAQI
31st Aug 20255411 PMAQI
1st Sep 20254312 AMAQI
1st Sep 2025521 AMAQI
1st Sep 2025532 AMAQI
1st Sep 2025523 AMAQI
1st Sep 2025524 AMAQI
1st Sep 2025525 AMAQI
20°C19/21°C
1st Sep 2025506 AMAQI
1st Sep 2025327 AMAQI
1st Sep 2025398 AMAQI
1st Sep 2025439 AMAQI
1st Sep 20254010 AMAQI
1st Sep 20254911 AMAQI
1st Sep 20255212 PMAQI
1st Sep 2025531 PMAQI
1st Sep 2025512 PMAQI
1st Sep 2025533 PMAQI
1st Sep 2025564 PMAQI
1st Sep 2025505 PMAQI
1st Sep 2025536 PMAQI
1st Sep 2025537 PMAQI
1st Sep 2025548 PMAQI
1st Sep 2025519 PMAQI
1st Sep 20256210 PMAQI
1st Sep 20255611 PMAQI
2nd Sep 20255012 AMAQI
2nd Sep 2025541 AMAQI
2nd Sep 2025542 AMAQI
2nd Sep 2025553 AMAQI
2nd Sep 2025534 AMAQI
2nd Sep 2025545 AMAQI
20°C19/23°C
2nd Sep 2025546 AMAQI
2nd Sep 2025407 AMAQI
2nd Sep 2025448 AMAQI
2nd Sep 2025509 AMAQI
2nd Sep 20255010 AMAQI
2nd Sep 20255211 AMAQI
2nd Sep 20255212 PMAQI
2nd Sep 2025541 PMAQI
2nd Sep 2025512 PMAQI
2nd Sep 2025503 PMAQI
2nd Sep 2025514 PMAQI
2nd Sep 2025525 PMAQI
2nd Sep 2025506 PMAQI
2nd Sep 2025537 PMAQI
2nd Sep 2025548 PMAQI
2nd Sep 2025549 PMAQI
2nd Sep 20255310 PMAQI
2nd Sep 20255611 PMAQI
3rd Sep 20255612 AMAQI
3rd Sep 2025561 AMAQI
3rd Sep 2025542 AMAQI
3rd Sep 2025533 AMAQI
3rd Sep 2025534 AMAQI
3rd Sep 2025535 AMAQI
21°C18/23°C
3rd Sep 2025556 AMAQI
3rd Sep 2025487 AMAQI
3rd Sep 2025558 AMAQI
3rd Sep 2025519 AMAQI
3rd Sep 20255210 AMAQI
3rd Sep 20255811 AMAQI
3rd Sep 20256012 PMAQI
3rd Sep 2025581 PMAQI
3rd Sep 2025582 PMAQI
3rd Sep 2025613 PMAQI
3rd Sep 2025554 PMAQI
3rd Sep 2025585 PMAQI
3rd Sep 2025586 PMAQI
3rd Sep 2025607 PMAQI
3rd Sep 2025608 PMAQI
3rd Sep 2025639 PMAQI
3rd Sep 20256810 PMAQI
3rd Sep 20255811 PMAQI
4th Sep 20255512 AMAQI
4th Sep 2025551 AMAQI
4th Sep 2025552 AMAQI
4th Sep 2025553 AMAQI
4th Sep 2025554 AMAQI
4th Sep 2025555 AMAQI
22°C19/26°C
4th Sep 2025546 AMAQI
4th Sep 2025507 AMAQI
4th Sep 2025548 AMAQI
4th Sep 2025569 AMAQI
4th Sep 20255310 AMAQI
4th Sep 20254911 AMAQI
4th Sep 20255612 PMAQI
4th Sep 2025481 PMAQI
4th Sep 2025422 PMAQI
4th Sep 2025283 PMAQI
4th Sep 2025204 PMAQI
4th Sep 2025185 PMAQI
4th Sep 2025206 PMAQI
4th Sep 2025227 PMAQI
4th Sep 2025178 PMAQI
4th Sep 2025189 PMAQI
4th Sep 20252110 PMAQI
4th Sep 20252911 PMAQI
5th Sep 20255612 AMAQI
5th Sep 2025561 AMAQI
5th Sep 2025562 AMAQI
5th Sep 2025563 AMAQI
5th Sep 2025554 AMAQI
5th Sep 2025545 AMAQI
21°C19/26°C
5th Sep 2025556 AMAQI
5th Sep 2025497 AMAQI
5th Sep 2025508 AMAQI
5th Sep 2025539 AMAQI
5th Sep 20255210 AMAQI
5th Sep 20255111 AMAQI
5th Sep 20255112 PMAQI
5th Sep 2025521 PMAQI
5th Sep 2025502 PMAQI
5th Sep 2025503 PMAQI
5th Sep 2025554 PMAQI
5th Sep 2025545 PMAQI
5th Sep 2025606 PMAQI
5th Sep 2025557 PMAQI
5th Sep 2025588 PMAQI
5th Sep 2025629 PMAQI
5th Sep 20256310 PMAQI
5th Sep 20255911 PMAQI
6th Sep 20255612 AMAQI
6th Sep 2025561 AMAQI
6th Sep 2025542 AMAQI
6th Sep 2025533 AMAQI
6th Sep 2025524 AMAQI
6th Sep 2025535 AMAQI
22°C19/25°C
6th Sep 2025536 AMAQI
6th Sep 2025517 AMAQI
6th Sep 2025368 AMAQI
6th Sep 2025519 AMAQI
6th Sep 20255910 AMAQI
6th Sep 20255511 AMAQI
6th Sep 20254612 PMAQI
6th Sep 2025461 PMAQI
6th Sep 2025612 PMAQI
6th Sep 2025543 PMAQI
6th Sep 2025494 PMAQI
6th Sep 2025475 PMAQI
6th Sep 2025536 PMAQI
6th Sep 2025547 PMAQI
6th Sep 2025578 PMAQI
6th Sep 2025589 PMAQI
6th Sep 20256210 PMAQI
6th Sep 20256311 PMAQI
7th Sep 20255612 AMAQI
7th Sep 2025541 AMAQI
7th Sep 2025542 AMAQI
7th Sep 2025543 AMAQI
7th Sep 2025534 AMAQI
7th Sep 2025535 AMAQI
22°C19/25°C
7th Sep 2025526 AMAQI
7th Sep 2025547 AMAQI
7th Sep 2025628 AMAQI
7th Sep 2025629 AMAQI
7th Sep 20255610 AMAQI
7th Sep 20256311 AMAQI
7th Sep 20255312 PMAQI
7th Sep 2025541 PMAQI
7th Sep 2025552 PMAQI
7th Sep 2025543 PMAQI
7th Sep 2025544 PMAQI
7th Sep 2025595 PMAQI
7th Sep 2025566 PMAQI
7th Sep 2025597 PMAQI
7th Sep 2025608 PMAQI
7th Sep 2025629 PMAQI
7th Sep 20255510 PMAQI
7th Sep 20255611 PMAQI
8th Sep 20255912 AMAQI
8th Sep 2025581 AMAQI
8th Sep 2025552 AMAQI
8th Sep 2025533 AMAQI
8th Sep 2025544 AMAQI
8th Sep 2025545 AMAQI
21°C19/24°C
8th Sep 2025566 AMAQI
8th Sep 2025447 AMAQI
8th Sep 2025608 AMAQI
8th Sep 2025639 AMAQI
8th Sep 20256110 AMAQI
8th Sep 20255911 AMAQI
8th Sep 20255512 PMAQI
8th Sep 2025451 PMAQI
8th Sep 2025502 PMAQI
8th Sep 2025553 PMAQI
8th Sep 2025574 PMAQI
8th Sep 2025645 PMAQI
8th Sep 2025606 PMAQI
8th Sep 2025607 PMAQI
8th Sep 2025628 PMAQI
8th Sep 2025699 PMAQI
8th Sep 20256710 PMAQI
8th Sep 20257111 PMAQI
9th Sep 20256412 AMAQI
9th Sep 2025651 AMAQI
9th Sep 2025572 AMAQI
9th Sep 2025583 AMAQI
9th Sep 2025574 AMAQI
9th Sep 2025575 AMAQI
21°C19/24°C
9th Sep 2025576 AMAQI
9th Sep 2025637 AMAQI
9th Sep 2025608 AMAQI
9th Sep 2025609 AMAQI
9th Sep 20256210 AMAQI
9th Sep 20255811 AMAQI
9th Sep 20256312 PMAQI
9th Sep 2025631 PMAQI
9th Sep 2025542 PMAQI
9th Sep 2025523 PMAQI
9th Sep 2025604 PMAQI
9th Sep 2025635 PMAQI
9th Sep 2025666 PMAQI
9th Sep 2025607 PMAQI
9th Sep 2025668 PMAQI
9th Sep 2025679 PMAQI
9th Sep 20256810 PMAQI
9th Sep 20256311 PMAQI
10th Sep 20255912 AMAQI
10th Sep 2025591 AMAQI
10th Sep 2025572 AMAQI
10th Sep 2025553 AMAQI
10th Sep 2025554 AMAQI
10th Sep 2025555 AMAQI
21°C19/23°C
10th Sep 2025576 AMAQI
10th Sep 2025507 AMAQI
10th Sep 2025538 AMAQI
10th Sep 2025559 AMAQI
10th Sep 20254910 AMAQI
10th Sep 20255711 AMAQI
10th Sep 20255412 PMAQI
10th Sep 2025561 PMAQI
10th Sep 2025562 PMAQI
10th Sep 2025513 PMAQI
10th Sep 2025464 PMAQI
10th Sep 2025585 PMAQI
10th Sep 2025586 PMAQI
10th Sep 2025597 PMAQI
10th Sep 2025598 PMAQI
10th Sep 2025609 PMAQI
10th Sep 20256210 PMAQI
10th Sep 20255711 PMAQI
11th Sep 20255412 AMAQI
11th Sep 2025581 AMAQI
11th Sep 2025582 AMAQI
11th Sep 2025563 AMAQI
11th Sep 2025584 AMAQI
11th Sep 2025595 AMAQI
20°C19/22°C
11th Sep 2025596 AMAQI
11th Sep 2025417 AMAQI
11th Sep 2025448 AMAQI
11th Sep 2025479 AMAQI
11th Sep 20255310 AMAQI
11th Sep 20254811 AMAQI
11th Sep 20254012 PMAQI
11th Sep 2025441 PMAQI
11th Sep 2025482 PMAQI
11th Sep 2025453 PMAQI
11th Sep 2025444 PMAQI
11th Sep 2025485 PMAQI
11th Sep 2025526 PMAQI
11th Sep 2025557 PMAQI
11th Sep 2025568 PMAQI
11th Sep 2025589 PMAQI
11th Sep 20255910 PMAQI
11th Sep 20255611 PMAQI
12th Sep 20255512 AMAQI
12th Sep 2025601 AMAQI
12th Sep 2025602 AMAQI
12th Sep 2025543 AMAQI
12th Sep 2025574 AMAQI
12th Sep 2025545 AMAQI
21°C18/23°C
12th Sep 2025566 AMAQI
12th Sep 2025517 AMAQI
12th Sep 2025498 AMAQI
12th Sep 2025539 AMAQI
12th Sep 20255110 AMAQI
12th Sep 20254611 AMAQI
12th Sep 20254412 PMAQI
12th Sep 2025481 PMAQI
12th Sep 2025502 PMAQI
12th Sep 2025473 PMAQI
12th Sep 2025524 PMAQI
12th Sep 2025525 PMAQI
12th Sep 2025536 PMAQI
12th Sep 2025517 PMAQI
12th Sep 2025608 PMAQI
12th Sep 2025569 PMAQI
12th Sep 20255610 PMAQI
12th Sep 20255811 PMAQI
13th Sep 20255712 AMAQI
13th Sep 2025561 AMAQI
13th Sep 2025562 AMAQI
13th Sep 2025573 AMAQI
13th Sep 2025564 AMAQI
13th Sep 2025545 AMAQI
22°C19/26°C
13th Sep 2025586 AMAQI
13th Sep 2025357 AMAQI
13th Sep 2025468 AMAQI
13th Sep 2025399 AMAQI
13th Sep 20254610 AMAQI
13th Sep 20255011 AMAQI
13th Sep 20254812 PMAQI
13th Sep 2025531 PMAQI
13th Sep 2025452 PMAQI
13th Sep 2025503 PMAQI
13th Sep 2025524 PMAQI
13th Sep 2025505 PMAQI
13th Sep 2025546 PMAQI
13th Sep 2025547 PMAQI
13th Sep 2025538 PMAQI
13th Sep 2025559 PMAQI
13th Sep 20255210 PMAQI
13th Sep 20255611 PMAQI
14th Sep 20255612 AMAQI
14th Sep 2025571 AMAQI
14th Sep 2025552 AMAQI
14th Sep 2025543 AMAQI
14th Sep 2025534 AMAQI
14th Sep 2025545 AMAQI
22°C19/27°C
14th Sep 2025546 AMAQI
14th Sep 2025427 AMAQI
14th Sep 2025368 AMAQI
14th Sep 2025439 AMAQI
14th Sep 20255310 AMAQI
14th Sep 20255011 AMAQI
14th Sep 20254512 PMAQI
14th Sep 2025461 PMAQI
14th Sep 2025442 PMAQI
14th Sep 2025303 PMAQI
14th Sep 2025364 PMAQI
14th Sep 2025325 PMAQI
14th Sep 2025406 PMAQI
14th Sep 2025497 PMAQI
14th Sep 2025538 PMAQI
14th Sep 2025549 PMAQI
14th Sep 20255410 PMAQI
14th Sep 20255311 PMAQI
15th Sep 20255512 AMAQI
15th Sep 2025591 AMAQI
15th Sep 2025552 AMAQI
15th Sep 2025543 AMAQI
15th Sep 2025524 AMAQI
15th Sep 2025545 AMAQI
21°C18/25°C
15th Sep 2025546 AMAQI
15th Sep 2025487 AMAQI
15th Sep 2025538 AMAQI
15th Sep 2025499 AMAQI
15th Sep 20254310 AMAQI
15th Sep 20255011 AMAQI
15th Sep 20253112 PMAQI
15th Sep 2025561 PMAQI
15th Sep 2025292 PMAQI
15th Sep 2025203 PMAQI
15th Sep 2025324 PMAQI
15th Sep 2025235 PMAQI
15th Sep 2025416 PMAQI
15th Sep 2025527 PMAQI
15th Sep 2025568 PMAQI
15th Sep 2025559 PMAQI
15th Sep 20255310 PMAQI
15th Sep 20255411 PMAQI
16th Sep 20254812 AMAQI
16th Sep 2025531 AMAQI
16th Sep 2025542 AMAQI
16th Sep 2025543 AMAQI
16th Sep 2025544 AMAQI
16th Sep 2025545 AMAQI
22°C18/27°C
16th Sep 2025546 AMAQI
16th Sep 2025437 AMAQI
16th Sep 2025388 AMAQI
16th Sep 2025289 AMAQI
16th Sep 20253410 AMAQI
16th Sep 20253511 AMAQI
16th Sep 20253812 PMAQI
16th Sep 2025331 PMAQI
16th Sep 2025362 PMAQI
16th Sep 2025443 PMAQI
16th Sep 2025324 PMAQI
16th Sep 2025435 PMAQI
16th Sep 2025486 PMAQI
16th Sep 2025547 PMAQI
16th Sep 2025548 PMAQI
16th Sep 2025509 PMAQI
16th Sep 20254610 PMAQI
16th Sep 20254111 PMAQI
17th Sep 20255212 AMAQI
17th Sep 2025521 AMAQI
17th Sep 2025542 AMAQI
17th Sep 2025523 AMAQI
17th Sep 2025544 AMAQI
17th Sep 2025525 AMAQI
21°C18/24°C
17th Sep 2025526 AMAQI
17th Sep 2025467 AMAQI
17th Sep 2025468 AMAQI
17th Sep 2025409 AMAQI
17th Sep 20254210 AMAQI
17th Sep 20255111 AMAQI
17th Sep 20254612 PMAQI
17th Sep 2025401 PMAQI
17th Sep 2025372 PMAQI
17th Sep 2025423 PMAQI
17th Sep 2025444 PMAQI
17th Sep 2025415 PMAQI
17th Sep 2025496 PMAQI
17th Sep 2025487 PMAQI
17th Sep 2025408 PMAQI
17th Sep 2025409 PMAQI
17th Sep 20253410 PMAQI
17th Sep 20253111 PMAQI
18th Sep 20253112 AMAQI
18th Sep 2025301 AMAQI
18th Sep 2025442 AMAQI
18th Sep 2025523 AMAQI
18th Sep 2025524 AMAQI
18th Sep 2025525 AMAQI
22°C18/26°C
18th Sep 2025526 AMAQI
18th Sep 2025367 AMAQI
18th Sep 2025408 AMAQI
18th Sep 2025359 AMAQI
18th Sep 20253410 AMAQI
18th Sep 20253211 AMAQI
18th Sep 20252412 PMAQI
18th Sep 2025241 PMAQI
18th Sep 2025252 PMAQI
18th Sep 2025263 PMAQI
18th Sep 2025254 PMAQI
18th Sep 2025285 PMAQI
18th Sep 2025246 PMAQI
18th Sep 2025327 PMAQI
18th Sep 2025348 PMAQI
18th Sep 2025369 PMAQI
18th Sep 20252510 PMAQI
18th Sep 20252411 PMAQI
19th Sep 20253012 AMAQI
19th Sep 2025431 AMAQI
19th Sep 2025462 AMAQI
19th Sep 2025463 AMAQI
19th Sep 2025444 AMAQI
19th Sep 2025425 AMAQI
21°C19/24°C
19th Sep 2025426 AMAQI
19th Sep 2025297 AMAQI
19th Sep 2025388 AMAQI
19th Sep 2025389 AMAQI
19th Sep 20253210 AMAQI
19th Sep 20253111 AMAQI
19th Sep 20253112 PMAQI
19th Sep 2025291 PMAQI
19th Sep 2025282 PMAQI
19th Sep 2025263 PMAQI
19th Sep 2025274 PMAQI
19th Sep 2025235 PMAQI
19th Sep 2025406 PMAQI
19th Sep 2025347 PMAQI
19th Sep 2025348 PMAQI
19th Sep 2025369 PMAQI
19th Sep 20253110 PMAQI
19th Sep 20252611 PMAQI
20th Sep 20252812 AMAQI
20th Sep 2025381 AMAQI
20th Sep 2025382 AMAQI
20th Sep 2025423 AMAQI
20th Sep 2025424 AMAQI
20th Sep 2025415 AMAQI
22°C19/26°C
20th Sep 2025426 AMAQI
20th Sep 2025257 AMAQI
20th Sep 2025198 AMAQI
20th Sep 2025219 AMAQI
20th Sep 20253210 AMAQI
20th Sep 20252211 AMAQI
20th Sep 20252012 PMAQI
20th Sep 2025231 PMAQI
20th Sep 2025222 PMAQI
20th Sep 2025223 PMAQI
20th Sep 2025234 PMAQI
20th Sep 2025305 PMAQI
20th Sep 2025256 PMAQI
20th Sep 2025227 PMAQI
20th Sep 2025268 PMAQI
20th Sep 2025239 PMAQI
20th Sep 20252010 PMAQI
20th Sep 20251911 PMAQI
21st Sep 20252112 AMAQI
21st Sep 2025321 AMAQI
21st Sep 2025322 AMAQI
21st Sep 2025343 AMAQI
21st Sep 2025374 AMAQI
21st Sep 2025375 AMAQI
21°C19/24°C
21st Sep 2025366 AMAQI
21st Sep 2025247 AMAQI
21st Sep 2025238 AMAQI
21st Sep 2025249 AMAQI
21st Sep 20251710 AMAQI
21st Sep 20251911 AMAQI
21st Sep 20251812 PMAQI
21st Sep 2025171 PMAQI
21st Sep 2025182 PMAQI
21st Sep 2025183 PMAQI
21st Sep 2025184 PMAQI
21st Sep 2025225 PMAQI
21st Sep 2025256 PMAQI
21st Sep 2025307 PMAQI
21st Sep 2025288 PMAQI
21st Sep 2025339 PMAQI
21st Sep 20251910 PMAQI
21st Sep 20251811 PMAQI
22nd Sep 20251812 AMAQI
22nd Sep 2025201 AMAQI
22nd Sep 2025242 AMAQI
22nd Sep 2025273 AMAQI
22nd Sep 2025304 AMAQI
22nd Sep 2025305 AMAQI
21°C19/24°C
22nd Sep 2025306 AMAQI
22nd Sep 2025267 AMAQI
22nd Sep 2025358 AMAQI
22nd Sep 2025319 AMAQI
22nd Sep 20251810 AMAQI
22nd Sep 20251911 AMAQI
22nd Sep 20251912 PMAQI
22nd Sep 2025181 PMAQI
22nd Sep 2025182 PMAQI
22nd Sep 2025183 PMAQI
22nd Sep 2025214 PMAQI
22nd Sep 2025185 PMAQI
22nd Sep 2025226 PMAQI
22nd Sep 2025167 PMAQI
22nd Sep 2025178 PMAQI
22nd Sep 2025199 PMAQI
22nd Sep 20251610 PMAQI
22nd Sep 20251411 PMAQI
23rd Sep 20252012 AMAQI
23rd Sep 2025181 AMAQI
23rd Sep 2025232 AMAQI
23rd Sep 2025283 AMAQI
23rd Sep 2025304 AMAQI
23rd Sep 2025285 AMAQI
21°C19/23°C
23rd Sep 2025286 AMAQI
23rd Sep 2025267 AMAQI
23rd Sep 2025248 AMAQI
23rd Sep 2025269 AMAQI
23rd Sep 20252410 AMAQI
23rd Sep 20252011 AMAQI
23rd Sep 20252012 PMAQI
23rd Sep 2025251 PMAQI
23rd Sep 2025162 PMAQI
23rd Sep 2025223 PMAQI
23rd Sep 2025294 PMAQI
23rd Sep 2025245 PMAQI
23rd Sep 2025156 PMAQI
23rd Sep 2025297 PMAQI
23rd Sep 2025228 PMAQI
23rd Sep 2025219 PMAQI
23rd Sep 20251410 PMAQI
23rd Sep 20251511 PMAQI
24th Sep 20251612 AMAQI
24th Sep 2025211 AMAQI
24th Sep 2025252 AMAQI
24th Sep 2025293 AMAQI
24th Sep 2025304 AMAQI
24th Sep 2025295 AMAQI
21°C19/24°C
24th Sep 2025286 AMAQI
24th Sep 2025247 AMAQI
24th Sep 2025218 AMAQI
24th Sep 2025279 AMAQI
24th Sep 20253010 AMAQI
24th Sep 20251911 AMAQI
24th Sep 20252012 PMAQI
24th Sep 2025181 PMAQI
24th Sep 2025162 PMAQI
24th Sep 2025263 PMAQI
24th Sep 2025174 PMAQI
24th Sep 2025225 PMAQI
24th Sep 2025166 PMAQI
24th Sep 2025177 PMAQI
24th Sep 2025188 PMAQI
24th Sep 2025179 PMAQI
24th Sep 20252010 PMAQI
24th Sep 20251911 PMAQI
25th Sep 20251812 AMAQI
25th Sep 2025181 AMAQI
25th Sep 2025202 AMAQI
25th Sep 2025263 AMAQI
25th Sep 2025274 AMAQI
25th Sep 2025275 AMAQI
21°C19/22°C
25th Sep 2025286 AMAQI
25th Sep 2025397 AMAQI
25th Sep 2025388 AMAQI
25th Sep 2025389 AMAQI
25th Sep 20253810 AMAQI
25th Sep 20252211 AMAQI
25th Sep 20251912 PMAQI
25th Sep 2025161 PMAQI
25th Sep 2025152 PMAQI
25th Sep 2025153 PMAQI
25th Sep 2025164 PMAQI
25th Sep 2025165 PMAQI
25th Sep 2025176 PMAQI
25th Sep 2025187 PMAQI
25th Sep 2025168 PMAQI
25th Sep 2025199 PMAQI
25th Sep 20251010 PMAQI
25th Sep 20251111 PMAQI
26th Sep 20251012 AMAQI
26th Sep 2025101 AMAQI
26th Sep 2025112 AMAQI
26th Sep 2025153 AMAQI
26th Sep 2025174 AMAQI
26th Sep 2025185 AMAQI
20°C18/22°C
26th Sep 2025186 AMAQI
26th Sep 2025187 AMAQI
26th Sep 2025168 AMAQI
26th Sep 2025209 AMAQI
26th Sep 20252010 AMAQI
26th Sep 20251811 AMAQI
26th Sep 20251912 PMAQI
26th Sep 2025171 PMAQI
26th Sep 2025162 PMAQI
26th Sep 2025153 PMAQI
26th Sep 2025144 PMAQI
26th Sep 2025135 PMAQI
26th Sep 2025226 PMAQI
26th Sep 2025247 PMAQI
26th Sep 2025168 PMAQI
26th Sep 2025139 PMAQI
26th Sep 20251210 PMAQI
26th Sep 20251211 PMAQI
27th Sep 20251312 AMAQI
27th Sep 2025131 AMAQI
27th Sep 2025152 AMAQI
27th Sep 2025193 AMAQI
27th Sep 2025204 AMAQI
27th Sep 2025205 AMAQI
20°C19/24°C
27th Sep 2025216 AMAQI
27th Sep 2025237 AMAQI
27th Sep 2025228 AMAQI
27th Sep 2025209 AMAQI
27th Sep 20252010 AMAQI
27th Sep 20251611 AMAQI
27th Sep 2025612 PMAQI
27th Sep 202561 PMAQI
27th Sep 202562 PMAQI
27th Sep 202563 PMAQI
27th Sep 202564 PMAQI
27th Sep 202565 PMAQI
27th Sep 202566 PMAQI
27th Sep 202567 PMAQI
27th Sep 202598 PMAQI
27th Sep 2025159 PMAQI
27th Sep 20251710 PMAQI
27th Sep 20251511 PMAQI
28th Sep 20251512 AMAQI
28th Sep 2025151 AMAQI
28th Sep 2025122 AMAQI
28th Sep 2025123 AMAQI
28th Sep 2025134 AMAQI
28th Sep 2025155 AMAQI
20°C19/23°C
28th Sep 2025176 AMAQI
28th Sep 2025307 AMAQI
28th Sep 2025358 AMAQI
28th Sep 2025239 AMAQI
28th Sep 20251310 AMAQI
28th Sep 20251111 AMAQI
28th Sep 2025812 PMAQI
28th Sep 202561 PMAQI
28th Sep 202562 PMAQI
28th Sep 202563 PMAQI
28th Sep 202584 PMAQI
28th Sep 202595 PMAQI
28th Sep 2025146 PMAQI
28th Sep 2025177 PMAQI
28th Sep 2025248 PMAQI
28th Sep 2025219 PMAQI
28th Sep 20252110 PMAQI
28th Sep 20252211 PMAQI
29th Sep 20253412 AMAQI
29th Sep 2025501 AMAQI
29th Sep 2025472 AMAQI
29th Sep 2025483 AMAQI
29th Sep 2025464 AMAQI
29th Sep 2025515 AMAQI
22°C18/27°C
29th Sep 2025426 AMAQI
29th Sep 2025307 AMAQI
29th Sep 2025388 AMAQI
29th Sep 2025469 AMAQI
29th Sep 20255110 AMAQI
29th Sep 20254511 AMAQI
29th Sep 20254012 PMAQI
29th Sep 2025391 PMAQI
29th Sep 2025342 PMAQI
29th Sep 2025343 PMAQI
29th Sep 2025324 PMAQI
29th Sep 2025365 PMAQI
29th Sep 2025376 PMAQI
29th Sep 2025397 PMAQI
29th Sep 2025438 PMAQI
29th Sep 2025489 PMAQI
29th Sep 20254110 PMAQI
29th Sep 20254111 PMAQI
30th Sep 20254512 AMAQI
30th Sep 2025481 AMAQI
30th Sep 2025372 AMAQI
30th Sep 2025363 AMAQI
30th Sep 2025294 AMAQI
30th Sep 2025285 AMAQI
--°C/°C
6 AM
12 PM
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM
46AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
2 PM - 5 PM
36AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 AM (Avg. 46), while the lowest AQI was between 2 PM to 5 PM (Avg. 36).
Night time
Avg. Highest Time
1 AM - 5 AM
45AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
10 PM - 11 PM
41AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 5 AM (Avg. 45), while the lowest AQI was between 10 PM to 11 PM (Avg. 41).
2025 Days Vs Air Quality
Omkoi District, Chiang Mai, Thailand
2025
34%
93
56%
152
10%
26
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Good
93 DaysModerate
152 DaysPoor
26 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 34%
Health Risk Level:
High
In 2025, 34% of 272 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
Omkoi District, 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
83AQI
83AQI
2nd January 2025
80AQI
80AQI
3rd January 2025
83AQI
83AQI
4th January 2025
90AQI
90AQI
5th January 2025
94AQI
94AQI
6th January 2025
93AQI
93AQI
7th January 2025
97AQI
97AQI
8th January 2025
115AQI
115AQI
9th January 2025
88AQI
88AQI
10th January 2025
91AQI
91AQI
11th January 2025
89AQI
89AQI
12th January 2025
91AQI
91AQI
13th January 2025
99AQI
99AQI
14th January 2025
92AQI
92AQI
15th January 2025
96AQI
96AQI
16th January 2025
87AQI
87AQI
17th January 2025
88AQI
88AQI
18th January 2025
93AQI
93AQI
19th January 2025
84AQI
84AQI
20th January 2025
87AQI
87AQI
21st January 2025
96AQI
96AQI
22nd January 2025
82AQI
82AQI
23rd January 2025
86AQI
86AQI
24th January 2025
80AQI
80AQI
25th January 2025
84AQI
84AQI
26th January 2025
86AQI
86AQI
27th January 2025
82AQI
82AQI
28th January 2025
91AQI
91AQI
29th January 2025
101AQI
101AQI
30th January 2025
94AQI
94AQI
31st January 2025
96AQI
96AQI
1st February 2025
96AQI
96AQI
2nd February 2025
90AQI
90AQI
3rd February 2025
92AQI
92AQI
4th February 2025
99AQI
99AQI
5th February 2025
95AQI
95AQI
6th February 2025
107AQI
107AQI
7th February 2025
101AQI
101AQI
8th February 2025
93AQI
93AQI
9th February 2025
86AQI
86AQI
10th February 2025
94AQI
94AQI
11th February 2025
100AQI
100AQI
12th February 2025
96AQI
96AQI
13th February 2025
91AQI
91AQI
14th February 2025
75AQI
75AQI
15th February 2025
73AQI
73AQI
16th February 2025
73AQI
73AQI
17th February 2025
68AQI
68AQI
18th February 2025
66AQI
66AQI
19th February 2025
62AQI
62AQI
20th February 2025
62AQI
62AQI
21st February 2025
64AQI
64AQI
22nd February 2025
74AQI
74AQI
23rd February 2025
74AQI
74AQI
24th February 2025
61AQI
61AQI
25th February 2025
57AQI
57AQI
26th February 2025
55AQI
55AQI
27th February 2025
61AQI
61AQI
28th February 2025
60AQI
60AQI
1st March 2025
64AQI
64AQI
2nd March 2025
65AQI
65AQI
3rd March 2025
64AQI
64AQI
4th March 2025
73AQI
73AQI
5th March 2025
73AQI
73AQI
6th March 2025
70AQI
70AQI
7th March 2025
72AQI
72AQI
8th March 2025
72AQI
72AQI
9th March 2025
71AQI
71AQI
10th March 2025
68AQI
68AQI
11th March 2025
73AQI
73AQI
12th March 2025
66AQI
66AQI
13th March 2025
96AQI
96AQI
14th March 2025
109AQI
109AQI
15th March 2025
108AQI
108AQI
16th March 2025
121AQI
121AQI
17th March 2025
115AQI
115AQI
18th March 2025
108AQI
108AQI
19th March 2025
112AQI
112AQI
20th March 2025
118AQI
118AQI
21st March 2025
121AQI
121AQI
22nd March 2025
125AQI
125AQI
23rd March 2025
150AQI
150AQI
24th March 2025
128AQI
128AQI
25th March 2025
122AQI
122AQI
26th March 2025
104AQI
104AQI
27th March 2025
120AQI
120AQI
28th March 2025
127AQI
127AQI
29th March 2025
125AQI
125AQI
30th March 2025
131AQI
131AQI
31st March 2025
128AQI
128AQI
1st April 2025
118AQI
118AQI
2nd April 2025
113AQI
113AQI
3rd April 2025
107AQI
107AQI
4th April 2025
109AQI
109AQI
5th April 2025
93AQI
93AQI
6th April 2025
93AQI
93AQI
7th April 2025
84AQI
84AQI
8th April 2025
78AQI
78AQI
9th April 2025
98AQI
98AQI
10th April 2025
92AQI
92AQI
11th April 2025
91AQI
91AQI
12th April 2025
79AQI
79AQI
13th April 2025
76AQI
76AQI
14th April 2025
64AQI
64AQI
15th April 2025
62AQI
62AQI
16th April 2025
66AQI
66AQI
17th April 2025
62AQI
62AQI
18th April 2025
61AQI
61AQI
19th April 2025
61AQI
61AQI
20th April 2025
68AQI
68AQI
21st April 2025
65AQI
65AQI
22nd April 2025
67AQI
67AQI
23rd April 2025
78AQI
78AQI
24th April 2025
82AQI
82AQI
25th April 2025
87AQI
87AQI
26th April 2025
90AQI
90AQI
27th April 2025
83AQI
83AQI
28th April 2025
81AQI
81AQI
29th April 2025
70AQI
70AQI
30th April 2025
71AQI
71AQI
1st May 2025
62AQI
62AQI
2nd May 2025
65AQI
65AQI
3rd May 2025
70AQI
70AQI
4th May 2025
64AQI
64AQI
5th May 2025
70AQI
70AQI
6th May 2025
76AQI
76AQI
7th May 2025
83AQI
83AQI
8th May 2025
84AQI
84AQI
9th May 2025
74AQI
74AQI
10th May 2025
71AQI
71AQI
11th May 2025
70AQI
70AQI
12th May 2025
61AQI
61AQI
13th May 2025
64AQI
64AQI
14th May 2025
71AQI
71AQI
15th May 2025
59AQI
59AQI
16th May 2025
61AQI
61AQI
17th May 2025
64AQI
64AQI
18th May 2025
65AQI
65AQI
19th May 2025
62AQI
62AQI
20th May 2025
62AQI
62AQI
21st May 2025
55AQI
55AQI
22nd May 2025
67AQI
67AQI
23rd May 2025
52AQI
52AQI
24th May 2025
52AQI
52AQI
25th May 2025
46AQI
46AQI
26th May 2025
39AQI
39AQI
27th May 2025
41AQI
41AQI
28th May 2025
51AQI
51AQI
29th May 2025
43AQI
43AQI
30th May 2025
40AQI
40AQI
31st May 2025
51AQI
51AQI
1st June 2025
37AQI
37AQI
2nd June 2025
41AQI
41AQI
3rd June 2025
40AQI
40AQI
4th June 2025
53AQI
53AQI
5th June 2025
53AQI
53AQI
6th June 2025
52AQI
52AQI
7th June 2025
52AQI
52AQI
8th June 2025
50AQI
50AQI
9th June 2025
51AQI
51AQI
10th June 2025
43AQI
43AQI
11th June 2025
43AQI
43AQI
12th June 2025
47AQI
47AQI
13th June 2025
45AQI
45AQI
14th June 2025
46AQI
46AQI
15th June 2025
44AQI
44AQI
16th June 2025
47AQI
47AQI
17th June 2025
47AQI
47AQI
18th June 2025
49AQI
49AQI
19th June 2025
49AQI
49AQI
20th June 2025
50AQI
50AQI
21st June 2025
51AQI
51AQI
22nd June 2025
52AQI
52AQI
23rd June 2025
50AQI
50AQI
24th June 2025
48AQI
48AQI
25th June 2025
47AQI
47AQI
26th June 2025
50AQI
50AQI
27th June 2025
48AQI
48AQI
28th June 2025
47AQI
47AQI
29th June 2025
46AQI
46AQI
30th June 2025
46AQI
46AQI
1st July 2025
48AQI
48AQI
2nd July 2025
48AQI
48AQI
3rd July 2025
50AQI
50AQI
4th July 2025
48AQI
48AQI
5th July 2025
47AQI
47AQI
6th July 2025
48AQI
48AQI
7th July 2025
46AQI
46AQI
8th July 2025
49AQI
49AQI
9th July 2025
50AQI
50AQI
10th July 2025
52AQI
52AQI
11th July 2025
51AQI
51AQI
12th July 2025
52AQI
52AQI
13th July 2025
52AQI
52AQI
14th July 2025
53AQI
53AQI
15th July 2025
50AQI
50AQI
16th July 2025
48AQI
48AQI
17th July 2025
47AQI
47AQI
18th July 2025
47AQI
47AQI
19th July 2025
46AQI
46AQI
20th July 2025
42AQI
42AQI
21st July 2025
42AQI
42AQI
22nd July 2025
45AQI
45AQI
23rd July 2025
50AQI
50AQI
24th July 2025
49AQI
49AQI
25th July 2025
46AQI
46AQI
26th July 2025
50AQI
50AQI
27th July 2025
51AQI
51AQI
28th July 2025
49AQI
49AQI
29th July 2025
46AQI
46AQI
30th July 2025
49AQI
49AQI
31st July 2025
52AQI
52AQI
1st August 2025
52AQI
52AQI
2nd August 2025
53AQI
53AQI
3rd August 2025
52AQI
52AQI
4th August 2025
50AQI
50AQI
5th August 2025
52AQI
52AQI
6th August 2025
51AQI
51AQI
7th August 2025
41AQI
41AQI
8th August 2025
28AQI
28AQI
9th August 2025
29AQI
29AQI
10th August 2025
28AQI
28AQI
11th August 2025
45AQI
45AQI
12th August 2025
46AQI
46AQI
13th August 2025
46AQI
46AQI
14th August 2025
44AQI
44AQI
15th August 2025
47AQI
47AQI
16th August 2025
47AQI
47AQI
17th August 2025
45AQI
45AQI
18th August 2025
45AQI
45AQI
19th August 2025
46AQI
46AQI
20th August 2025
49AQI
49AQI
21st August 2025
48AQI
48AQI
22nd August 2025
48AQI
48AQI
23rd August 2025
46AQI
46AQI
24th August 2025
46AQI
46AQI
25th August 2025
49AQI
49AQI
26th August 2025
49AQI
49AQI
27th August 2025
46AQI
46AQI
28th August 2025
45AQI
45AQI
29th August 2025
48AQI
48AQI
30th August 2025
51AQI
51AQI
31st August 2025
51AQI
51AQI
1st September 2025
50AQI
50AQI
2nd September 2025
52AQI
52AQI
3rd September 2025
57AQI
57AQI
4th September 2025
40AQI
40AQI
5th September 2025
56AQI
56AQI
6th September 2025
55AQI
55AQI
7th September 2025
56AQI
56AQI
8th September 2025
59AQI
59AQI
9th September 2025
61AQI
61AQI
10th September 2025
56AQI
56AQI
11th September 2025
53AQI
53AQI
12th September 2025
54AQI
54AQI
13th September 2025
53AQI
53AQI
14th September 2025
49AQI
49AQI
15th September 2025
49AQI
49AQI
16th September 2025
47AQI
47AQI
17th September 2025
47AQI
47AQI
18th September 2025
34AQI
34AQI
19th September 2025
33AQI
33AQI
20th September 2025
27AQI
27AQI
21st September 2025
24AQI
24AQI
22nd September 2025
20AQI
20AQI
23rd September 2025
21AQI
21AQI
24th September 2025
21AQI
21AQI
25th September 2025
20AQI
20AQI
26th September 2025
15AQI
15AQI
27th September 2025
13AQI
13AQI
28th September 2025
16AQI
16AQI
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
90AQI
79AQI
100AQI
82AQI
61AQI
47AQI
48AQI
46AQI
41AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202566AQI
29
2
26
2
13
18
26
4
5
26
23
7
24
7
24
7
17
11
93
152
26
Highest AQI recorded in
March100AQI
Lowest AQI recorded in
September41AQI
202459AQI
14
2
2
6
3
1
1
2
4
1
1
8
6
1
22
8
27
4
25
6
2
1
13
19
11
31
118
90
10
2
1
Highest AQI recorded in
April159AQI
Lowest AQI recorded in
October28AQI
202368AQI
3
6
2
1
3
2
1
2
1
3
3
2
2
6
2
1
12
1
5
3
4
1
1
10
3
4
5
1
21
8
43
46
24
6
Highest AQI recorded in
March140AQI
Lowest AQI recorded in
July18AQI
202275AQI
1
3
1
1
4
2
7
1
Highest AQI recorded in
December79AQI
Lowest AQI recorded in
November71AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2022(Avg.)
75AQILeast Polluted Year Recorded
2024(Avg.)
59AQIOmkoi District's annual 2025 AQI (66) shows an average percentage change of -1.04% (improved AQI) compared to previous years: 2022 (75), 2023 (68), 2024 (59).
