Den Chai District, Phrae, 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
Den Chai District, Phrae, Thailand
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Sep 2025
57AQILowest AQI recorded on
3rd Sep 2024
8AQISame Day Analysis (27th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 27th Sep - 28th Sep 2025
Den Chai District, Phrae, Thailand
AQI
Day
Night
.
6 AM27th Sep 2025
6 PM
5 AM28th Sep 2025
Day time
Avg. Highest Time
6AM27th Sep
42AQI
Avg. Lowest Time
5PM27th Sep
33AQI
Night time
Avg. Highest Time
12AM28th Sep
48AQI
Avg. Lowest Time
5AM28th Sep
40AQI
In the last 24 hours,
Den Chai District's AQI reached its highest point of 48 at 12 AM during the Night, while the lowest point, 33, was recorded at 5 PM during the Day between 27th Sep and 28th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Den Chai District, Phrae, Thailand
AugSep
29th - 30th30th - 31st31st - 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
Day
Night
29th Aug 2025546 AMAQI
29th Aug 2025527 AMAQI
29th Aug 2025448 AMAQI
29th Aug 2025449 AMAQI
29th Aug 20254810 AMAQI
29th Aug 20254511 AMAQI
29th Aug 20255012 PMAQI
29th Aug 2025451 PMAQI
29th Aug 2025512 PMAQI
29th Aug 2025423 PMAQI
29th Aug 2025484 PMAQI
29th Aug 2025465 PMAQI
29th Aug 2025516 PMAQI
29th Aug 2025547 PMAQI
29th Aug 2025548 PMAQI
29th Aug 2025549 PMAQI
29th Aug 20255410 PMAQI
29th Aug 20255511 PMAQI
30th Aug 20255812 AMAQI
30th Aug 2025561 AMAQI
30th Aug 2025552 AMAQI
30th Aug 2025543 AMAQI
30th Aug 2025544 AMAQI
30th Aug 2025545 AMAQI
24°C20/29°C
30th Aug 2025546 AMAQI
30th Aug 2025517 AMAQI
30th Aug 2025408 AMAQI
30th Aug 2025439 AMAQI
30th Aug 20255010 AMAQI
30th Aug 20255211 AMAQI
30th Aug 20254612 PMAQI
30th Aug 2025401 PMAQI
30th Aug 2025482 PMAQI
30th Aug 2025463 PMAQI
30th Aug 2025484 PMAQI
30th Aug 2025405 PMAQI
30th Aug 2025546 PMAQI
30th Aug 2025527 PMAQI
30th Aug 2025548 PMAQI
30th Aug 2025579 PMAQI
30th Aug 20255610 PMAQI
30th Aug 20255611 PMAQI
31st Aug 20255512 AMAQI
31st Aug 2025561 AMAQI
31st Aug 2025542 AMAQI
31st Aug 2025533 AMAQI
31st Aug 2025544 AMAQI
31st Aug 2025545 AMAQI
24°C20/29°C
31st Aug 2025536 AMAQI
31st Aug 2025507 AMAQI
31st Aug 2025448 AMAQI
31st Aug 2025489 AMAQI
31st Aug 20255010 AMAQI
31st Aug 20254411 AMAQI
31st Aug 20253512 PMAQI
31st Aug 2025361 PMAQI
31st Aug 2025422 PMAQI
31st Aug 2025443 PMAQI
31st Aug 2025384 PMAQI
31st Aug 2025365 PMAQI
31st Aug 2025466 PMAQI
31st Aug 2025507 PMAQI
31st Aug 2025528 PMAQI
31st Aug 2025539 PMAQI
31st Aug 20255410 PMAQI
31st Aug 20255211 PMAQI
1st Sep 20254812 AMAQI
1st Sep 2025541 AMAQI
1st Sep 2025532 AMAQI
1st Sep 2025533 AMAQI
1st Sep 2025534 AMAQI
1st Sep 2025535 AMAQI
23°C20/26°C
1st Sep 2025526 AMAQI
1st Sep 2025527 AMAQI
1st Sep 2025508 AMAQI
1st Sep 2025549 AMAQI
1st Sep 20254610 AMAQI
1st Sep 20255711 AMAQI
1st Sep 20255012 PMAQI
1st Sep 2025481 PMAQI
1st Sep 2025472 PMAQI
1st Sep 2025543 PMAQI
1st Sep 2025564 PMAQI
1st Sep 2025445 PMAQI
1st Sep 2025526 PMAQI
1st Sep 2025557 PMAQI
1st Sep 2025528 PMAQI
1st Sep 2025569 PMAQI
1st Sep 20255810 PMAQI
1st Sep 20255411 PMAQI
2nd Sep 20255312 AMAQI
2nd Sep 2025521 AMAQI
2nd Sep 2025542 AMAQI
2nd Sep 2025523 AMAQI
2nd Sep 2025534 AMAQI
2nd Sep 2025545 AMAQI
24°C20/29°C
2nd Sep 2025546 AMAQI
2nd Sep 2025487 AMAQI
2nd Sep 2025428 AMAQI
2nd Sep 2025549 AMAQI
2nd Sep 20254910 AMAQI
2nd Sep 20255611 AMAQI
2nd Sep 20254612 PMAQI
2nd Sep 2025461 PMAQI
2nd Sep 2025482 PMAQI
2nd Sep 2025543 PMAQI
2nd Sep 2025484 PMAQI
2nd Sep 2025525 PMAQI
2nd Sep 2025536 PMAQI
2nd Sep 2025557 PMAQI
2nd Sep 2025558 PMAQI
2nd Sep 2025509 PMAQI
2nd Sep 20255210 PMAQI
2nd Sep 20255811 PMAQI
3rd Sep 20255212 AMAQI
3rd Sep 2025561 AMAQI
3rd Sep 2025532 AMAQI
3rd Sep 2025523 AMAQI
3rd Sep 2025524 AMAQI
3rd Sep 2025535 AMAQI
25°C23/30°C
3rd Sep 2025546 AMAQI
3rd Sep 2025577 AMAQI
3rd Sep 2025648 AMAQI
3rd Sep 2025599 AMAQI
3rd Sep 20255810 AMAQI
3rd Sep 20256111 AMAQI
3rd Sep 20256212 PMAQI
3rd Sep 2025581 PMAQI
3rd Sep 2025542 PMAQI
3rd Sep 2025563 PMAQI
3rd Sep 2025554 PMAQI
3rd Sep 2025475 PMAQI
3rd Sep 2025516 PMAQI
3rd Sep 2025627 PMAQI
3rd Sep 2025658 PMAQI
3rd Sep 2025669 PMAQI
3rd Sep 20256210 PMAQI
3rd Sep 20256011 PMAQI
4th Sep 20255312 AMAQI
4th Sep 2025541 AMAQI
4th Sep 2025532 AMAQI
4th Sep 2025523 AMAQI
4th Sep 2025534 AMAQI
4th Sep 2025545 AMAQI
24°C21/28°C
4th Sep 2025536 AMAQI
4th Sep 2025647 AMAQI
4th Sep 2025648 AMAQI
4th Sep 2025639 AMAQI
4th Sep 20255810 AMAQI
4th Sep 20254711 AMAQI
4th Sep 20256012 PMAQI
4th Sep 2025531 PMAQI
4th Sep 2025662 PMAQI
4th Sep 2025313 PMAQI
4th Sep 2025204 PMAQI
4th Sep 2025215 PMAQI
4th Sep 2025226 PMAQI
4th Sep 2025297 PMAQI
4th Sep 2025318 PMAQI
4th Sep 2025349 PMAQI
4th Sep 20253310 PMAQI
4th Sep 20253911 PMAQI
5th Sep 20255412 AMAQI
5th Sep 2025541 AMAQI
5th Sep 2025542 AMAQI
5th Sep 2025533 AMAQI
5th Sep 2025544 AMAQI
5th Sep 2025545 AMAQI
26°C23/32°C
5th Sep 2025536 AMAQI
5th Sep 2025537 AMAQI
5th Sep 2025488 AMAQI
5th Sep 2025499 AMAQI
5th Sep 20255410 AMAQI
5th Sep 20255811 AMAQI
5th Sep 20255912 PMAQI
5th Sep 2025571 PMAQI
5th Sep 2025502 PMAQI
5th Sep 2025453 PMAQI
5th Sep 2025504 PMAQI
5th Sep 2025425 PMAQI
5th Sep 2025546 PMAQI
5th Sep 2025537 PMAQI
5th Sep 2025598 PMAQI
5th Sep 2025559 PMAQI
5th Sep 20256010 PMAQI
5th Sep 20255611 PMAQI
6th Sep 20255712 AMAQI
6th Sep 2025571 AMAQI
6th Sep 2025542 AMAQI
6th Sep 2025533 AMAQI
6th Sep 2025514 AMAQI
6th Sep 2025535 AMAQI
26°C21/32°C
6th Sep 2025526 AMAQI
6th Sep 2025447 AMAQI
6th Sep 2025408 AMAQI
6th Sep 2025569 AMAQI
6th Sep 20255410 AMAQI
6th Sep 20255211 AMAQI
6th Sep 20254912 PMAQI
6th Sep 2025411 PMAQI
6th Sep 2025412 PMAQI
6th Sep 2025523 PMAQI
6th Sep 2025484 PMAQI
6th Sep 2025415 PMAQI
6th Sep 2025486 PMAQI
6th Sep 2025597 PMAQI
6th Sep 2025628 PMAQI
6th Sep 2025609 PMAQI
6th Sep 20255310 PMAQI
6th Sep 20255011 PMAQI
7th Sep 20255612 AMAQI
7th Sep 2025561 AMAQI
7th Sep 2025542 AMAQI
7th Sep 2025533 AMAQI
7th Sep 2025534 AMAQI
7th Sep 2025535 AMAQI
26°C22/31°C
7th Sep 2025536 AMAQI
7th Sep 2025607 AMAQI
7th Sep 2025678 AMAQI
7th Sep 2025539 AMAQI
7th Sep 20255010 AMAQI
7th Sep 20256811 AMAQI
7th Sep 20255512 PMAQI
7th Sep 2025581 PMAQI
7th Sep 2025572 PMAQI
7th Sep 2025543 PMAQI
7th Sep 2025524 PMAQI
7th Sep 2025685 PMAQI
7th Sep 2025566 PMAQI
7th Sep 2025567 PMAQI
7th Sep 2025628 PMAQI
7th Sep 2025609 PMAQI
7th Sep 20255310 PMAQI
7th Sep 20255411 PMAQI
8th Sep 20255612 AMAQI
8th Sep 2025541 AMAQI
8th Sep 2025542 AMAQI
8th Sep 2025533 AMAQI
8th Sep 2025544 AMAQI
8th Sep 2025545 AMAQI
25°C21/29°C
8th Sep 2025546 AMAQI
8th Sep 2025437 AMAQI
8th Sep 2025638 AMAQI
8th Sep 2025609 AMAQI
8th Sep 20254610 AMAQI
8th Sep 20255311 AMAQI
8th Sep 20255612 PMAQI
8th Sep 2025461 PMAQI
8th Sep 2025462 PMAQI
8th Sep 2025503 PMAQI
8th Sep 2025404 PMAQI
8th Sep 2025485 PMAQI
8th Sep 2025526 PMAQI
8th Sep 2025547 PMAQI
8th Sep 2025588 PMAQI
8th Sep 2025619 PMAQI
8th Sep 20255210 PMAQI
8th Sep 20255511 PMAQI
9th Sep 20255812 AMAQI
9th Sep 2025571 AMAQI
9th Sep 2025542 AMAQI
9th Sep 2025533 AMAQI
9th Sep 2025544 AMAQI
9th Sep 2025555 AMAQI
25°C20/30°C
9th Sep 2025546 AMAQI
9th Sep 2025457 AMAQI
9th Sep 2025458 AMAQI
9th Sep 2025549 AMAQI
9th Sep 20254710 AMAQI
9th Sep 20254211 AMAQI
9th Sep 20255512 PMAQI
9th Sep 2025551 PMAQI
9th Sep 2025432 PMAQI
9th Sep 2025373 PMAQI
9th Sep 2025464 PMAQI
9th Sep 2025335 PMAQI
9th Sep 2025526 PMAQI
9th Sep 2025547 PMAQI
9th Sep 2025548 PMAQI
9th Sep 2025549 PMAQI
9th Sep 20255110 PMAQI
9th Sep 20255111 PMAQI
10th Sep 20255412 AMAQI
10th Sep 2025541 AMAQI
10th Sep 2025522 AMAQI
10th Sep 2025543 AMAQI
10th Sep 2025544 AMAQI
10th Sep 2025545 AMAQI
24°C21/29°C
10th Sep 2025546 AMAQI
10th Sep 2025427 AMAQI
10th Sep 2025468 AMAQI
10th Sep 2025269 AMAQI
10th Sep 20254010 AMAQI
10th Sep 20253811 AMAQI
10th Sep 20254312 PMAQI
10th Sep 2025521 PMAQI
10th Sep 2025482 PMAQI
10th Sep 2025323 PMAQI
10th Sep 2025384 PMAQI
10th Sep 2025385 PMAQI
10th Sep 2025486 PMAQI
10th Sep 2025427 PMAQI
10th Sep 2025478 PMAQI
10th Sep 2025499 PMAQI
10th Sep 20254210 PMAQI
10th Sep 20254611 PMAQI
11th Sep 20255112 AMAQI
11th Sep 2025501 AMAQI
11th Sep 2025522 AMAQI
11th Sep 2025523 AMAQI
11th Sep 2025524 AMAQI
11th Sep 2025525 AMAQI
23°C21/27°C
11th Sep 2025526 AMAQI
11th Sep 2025487 AMAQI
11th Sep 2025408 AMAQI
11th Sep 2025479 AMAQI
11th Sep 20254910 AMAQI
11th Sep 20254411 AMAQI
11th Sep 20253212 PMAQI
11th Sep 2025281 PMAQI
11th Sep 2025382 PMAQI
11th Sep 2025413 PMAQI
11th Sep 2025474 PMAQI
11th Sep 2025445 PMAQI
11th Sep 2025446 PMAQI
11th Sep 2025507 PMAQI
11th Sep 2025468 PMAQI
11th Sep 2025509 PMAQI
11th Sep 20255210 PMAQI
11th Sep 20255211 PMAQI
12th Sep 20255112 AMAQI
12th Sep 2025501 AMAQI
12th Sep 2025522 AMAQI
12th Sep 2025513 AMAQI
12th Sep 2025514 AMAQI
12th Sep 2025515 AMAQI
25°C23/28°C
12th Sep 2025526 AMAQI
12th Sep 2025427 AMAQI
12th Sep 2025358 AMAQI
12th Sep 2025489 AMAQI
12th Sep 20254210 AMAQI
12th Sep 20254411 AMAQI
12th Sep 20254612 PMAQI
12th Sep 2025441 PMAQI
12th Sep 2025562 PMAQI
12th Sep 2025433 PMAQI
12th Sep 2025404 PMAQI
12th Sep 2025485 PMAQI
12th Sep 2025546 PMAQI
12th Sep 2025547 PMAQI
12th Sep 2025568 PMAQI
12th Sep 2025479 PMAQI
12th Sep 20255710 PMAQI
12th Sep 20256011 PMAQI
13th Sep 20255612 AMAQI
13th Sep 2025531 AMAQI
13th Sep 2025522 AMAQI
13th Sep 2025523 AMAQI
13th Sep 2025524 AMAQI
13th Sep 2025525 AMAQI
25°C22/30°C
13th Sep 2025526 AMAQI
13th Sep 2025367 AMAQI
13th Sep 2025408 AMAQI
13th Sep 2025429 AMAQI
13th Sep 20254010 AMAQI
13th Sep 20254311 AMAQI
13th Sep 20254212 PMAQI
13th Sep 2025431 PMAQI
13th Sep 2025342 PMAQI
13th Sep 2025383 PMAQI
13th Sep 2025314 PMAQI
13th Sep 2025515 PMAQI
13th Sep 2025476 PMAQI
13th Sep 2025497 PMAQI
13th Sep 2025528 PMAQI
13th Sep 2025619 PMAQI
13th Sep 20255310 PMAQI
13th Sep 20255211 PMAQI
14th Sep 20255312 AMAQI
14th Sep 2025541 AMAQI
14th Sep 2025532 AMAQI
14th Sep 2025523 AMAQI
14th Sep 2025544 AMAQI
14th Sep 2025535 AMAQI
26°C22/31°C
14th Sep 2025526 AMAQI
14th Sep 2025507 AMAQI
14th Sep 2025448 AMAQI
14th Sep 2025419 AMAQI
14th Sep 20255610 AMAQI
14th Sep 20253811 AMAQI
14th Sep 20254412 PMAQI
14th Sep 2025361 PMAQI
14th Sep 2025402 PMAQI
14th Sep 2025263 PMAQI
14th Sep 2025304 PMAQI
14th Sep 2025395 PMAQI
14th Sep 2025386 PMAQI
14th Sep 2025547 PMAQI
14th Sep 2025528 PMAQI
14th Sep 2025529 PMAQI
14th Sep 20255210 PMAQI
14th Sep 20255411 PMAQI
15th Sep 20255412 AMAQI
15th Sep 2025561 AMAQI
15th Sep 2025532 AMAQI
15th Sep 2025543 AMAQI
15th Sep 2025544 AMAQI
15th Sep 2025545 AMAQI
25°C22/30°C
15th Sep 2025536 AMAQI
15th Sep 2025517 AMAQI
15th Sep 2025568 AMAQI
15th Sep 2025529 AMAQI
15th Sep 20254310 AMAQI
15th Sep 20253711 AMAQI
15th Sep 20253912 PMAQI
15th Sep 2025531 PMAQI
15th Sep 2025432 PMAQI
15th Sep 2025393 PMAQI
15th Sep 2025504 PMAQI
15th Sep 2025365 PMAQI
15th Sep 2025426 PMAQI
15th Sep 2025527 PMAQI
15th Sep 2025568 PMAQI
15th Sep 2025569 PMAQI
15th Sep 20255810 PMAQI
15th Sep 20255011 PMAQI
16th Sep 20255212 AMAQI
16th Sep 2025511 AMAQI
16th Sep 2025492 AMAQI
16th Sep 2025543 AMAQI
16th Sep 2025554 AMAQI
16th Sep 2025555 AMAQI
25°C20/31°C
16th Sep 2025556 AMAQI
16th Sep 2025447 AMAQI
16th Sep 2025358 AMAQI
16th Sep 2025239 AMAQI
16th Sep 20253310 AMAQI
16th Sep 20253511 AMAQI
16th Sep 20252412 PMAQI
16th Sep 2025251 PMAQI
16th Sep 2025282 PMAQI
16th Sep 2025253 PMAQI
16th Sep 2025364 PMAQI
16th Sep 2025335 PMAQI
16th Sep 2025426 PMAQI
16th Sep 2025407 PMAQI
16th Sep 2025468 PMAQI
16th Sep 2025509 PMAQI
16th Sep 20254810 PMAQI
16th Sep 20255111 PMAQI
17th Sep 20255412 AMAQI
17th Sep 2025541 AMAQI
17th Sep 2025522 AMAQI
17th Sep 2025523 AMAQI
17th Sep 2025524 AMAQI
17th Sep 2025525 AMAQI
25°C23/28°C
17th Sep 2025526 AMAQI
17th Sep 2025527 AMAQI
17th Sep 2025428 AMAQI
17th Sep 2025439 AMAQI
17th Sep 20254810 AMAQI
17th Sep 20255411 AMAQI
17th Sep 20254312 PMAQI
17th Sep 2025441 PMAQI
17th Sep 2025322 PMAQI
17th Sep 2025353 PMAQI
17th Sep 2025374 PMAQI
17th Sep 2025525 PMAQI
17th Sep 2025506 PMAQI
17th Sep 2025487 PMAQI
17th Sep 2025488 PMAQI
17th Sep 2025489 PMAQI
17th Sep 20255010 PMAQI
17th Sep 20254811 PMAQI
18th Sep 20254612 AMAQI
18th Sep 2025531 AMAQI
18th Sep 2025532 AMAQI
18th Sep 2025533 AMAQI
18th Sep 2025534 AMAQI
18th Sep 2025535 AMAQI
26°C23/30°C
18th Sep 2025526 AMAQI
18th Sep 2025467 AMAQI
18th Sep 2025478 AMAQI
18th Sep 2025389 AMAQI
18th Sep 20253610 AMAQI
18th Sep 20253911 AMAQI
18th Sep 20253712 PMAQI
18th Sep 2025381 PMAQI
18th Sep 2025302 PMAQI
18th Sep 2025303 PMAQI
18th Sep 2025304 PMAQI
18th Sep 2025325 PMAQI
18th Sep 2025376 PMAQI
18th Sep 2025467 PMAQI
18th Sep 2025548 PMAQI
18th Sep 2025569 PMAQI
18th Sep 20255410 PMAQI
18th Sep 20255411 PMAQI
19th Sep 20255312 AMAQI
19th Sep 2025531 AMAQI
19th Sep 2025522 AMAQI
19th Sep 2025523 AMAQI
19th Sep 2025524 AMAQI
19th Sep 2025525 AMAQI
26°C21/32°C
19th Sep 2025516 AMAQI
19th Sep 2025337 AMAQI
19th Sep 2025238 AMAQI
19th Sep 2025229 AMAQI
19th Sep 20251510 AMAQI
19th Sep 20252211 AMAQI
19th Sep 20252112 PMAQI
19th Sep 2025211 PMAQI
19th Sep 2025212 PMAQI
19th Sep 2025203 PMAQI
19th Sep 2025214 PMAQI
19th Sep 2025245 PMAQI
19th Sep 2025266 PMAQI
19th Sep 2025437 PMAQI
19th Sep 2025488 PMAQI
19th Sep 2025509 PMAQI
19th Sep 20253610 PMAQI
19th Sep 20254111 PMAQI
20th Sep 20253812 AMAQI
20th Sep 2025481 AMAQI
20th Sep 2025482 AMAQI
20th Sep 2025473 AMAQI
20th Sep 2025464 AMAQI
20th Sep 2025495 AMAQI
26°C23/30°C
20th Sep 2025516 AMAQI
20th Sep 2025247 AMAQI
20th Sep 2025198 AMAQI
20th Sep 2025179 AMAQI
20th Sep 20251810 AMAQI
20th Sep 20252011 AMAQI
20th Sep 20252112 PMAQI
20th Sep 2025251 PMAQI
20th Sep 2025232 PMAQI
20th Sep 2025233 PMAQI
20th Sep 2025264 PMAQI
20th Sep 2025245 PMAQI
20th Sep 2025246 PMAQI
20th Sep 2025327 PMAQI
20th Sep 2025378 PMAQI
20th Sep 2025329 PMAQI
20th Sep 20253010 PMAQI
20th Sep 20252811 PMAQI
21st Sep 20253312 AMAQI
21st Sep 2025461 AMAQI
21st Sep 2025462 AMAQI
21st Sep 2025443 AMAQI
21st Sep 2025464 AMAQI
21st Sep 2025455 AMAQI
25°C23/28°C
21st Sep 2025426 AMAQI
21st Sep 2025307 AMAQI
21st Sep 2025278 AMAQI
21st Sep 2025269 AMAQI
21st Sep 20252110 AMAQI
21st Sep 20252011 AMAQI
21st Sep 20251812 PMAQI
21st Sep 2025201 PMAQI
21st Sep 2025192 PMAQI
21st Sep 2025183 PMAQI
21st Sep 2025184 PMAQI
21st Sep 2025235 PMAQI
21st Sep 2025246 PMAQI
21st Sep 2025317 PMAQI
21st Sep 2025338 PMAQI
21st Sep 2025319 PMAQI
21st Sep 20252910 PMAQI
21st Sep 20252911 PMAQI
22nd Sep 20253112 AMAQI
22nd Sep 2025401 AMAQI
22nd Sep 2025402 AMAQI
22nd Sep 2025383 AMAQI
22nd Sep 2025384 AMAQI
22nd Sep 2025385 AMAQI
26°C22/30°C
22nd Sep 2025396 AMAQI
22nd Sep 2025317 AMAQI
22nd Sep 2025308 AMAQI
22nd Sep 2025249 AMAQI
22nd Sep 20251810 AMAQI
22nd Sep 20251911 AMAQI
22nd Sep 20251812 PMAQI
22nd Sep 2025171 PMAQI
22nd Sep 2025162 PMAQI
22nd Sep 2025183 PMAQI
22nd Sep 2025184 PMAQI
22nd Sep 2025185 PMAQI
22nd Sep 2025166 PMAQI
22nd Sep 2025207 PMAQI
22nd Sep 2025218 PMAQI
22nd Sep 2025239 PMAQI
22nd Sep 20252410 PMAQI
22nd Sep 20252011 PMAQI
23rd Sep 20252212 AMAQI
23rd Sep 2025331 AMAQI
23rd Sep 2025372 AMAQI
23rd Sep 2025353 AMAQI
23rd Sep 2025364 AMAQI
23rd Sep 2025355 AMAQI
25°C23/28°C
23rd Sep 2025356 AMAQI
23rd Sep 2025257 AMAQI
23rd Sep 2025208 AMAQI
23rd Sep 2025209 AMAQI
23rd Sep 20251510 AMAQI
23rd Sep 20251411 AMAQI
23rd Sep 20251712 PMAQI
23rd Sep 2025161 PMAQI
23rd Sep 2025182 PMAQI
23rd Sep 2025163 PMAQI
23rd Sep 2025164 PMAQI
23rd Sep 2025195 PMAQI
23rd Sep 2025186 PMAQI
23rd Sep 2025207 PMAQI
23rd Sep 2025228 PMAQI
23rd Sep 2025209 PMAQI
23rd Sep 20252110 PMAQI
23rd Sep 20251911 PMAQI
24th Sep 20251912 AMAQI
24th Sep 2025231 AMAQI
24th Sep 2025232 AMAQI
24th Sep 2025263 AMAQI
24th Sep 2025304 AMAQI
24th Sep 2025315 AMAQI
24°C21/28°C
24th Sep 2025316 AMAQI
24th Sep 2025217 AMAQI
24th Sep 2025228 AMAQI
24th Sep 2025209 AMAQI
24th Sep 20252010 AMAQI
24th Sep 20251611 AMAQI
24th Sep 20251612 PMAQI
24th Sep 2025161 PMAQI
24th Sep 2025152 PMAQI
24th Sep 2025173 PMAQI
24th Sep 2025184 PMAQI
24th Sep 2025145 PMAQI
24th Sep 2025186 PMAQI
24th Sep 2025197 PMAQI
24th Sep 2025208 PMAQI
24th Sep 2025219 PMAQI
24th Sep 20252210 PMAQI
24th Sep 20252011 PMAQI
25th Sep 20252412 AMAQI
25th Sep 2025241 AMAQI
25th Sep 2025272 AMAQI
25th Sep 2025283 AMAQI
25th Sep 2025284 AMAQI
25th Sep 2025275 AMAQI
23°C20/29°C
25th Sep 2025276 AMAQI
25th Sep 2025447 AMAQI
25th Sep 2025348 AMAQI
25th Sep 2025229 AMAQI
25th Sep 20251510 AMAQI
25th Sep 20251411 AMAQI
25th Sep 20251412 PMAQI
25th Sep 2025121 PMAQI
25th Sep 2025122 PMAQI
25th Sep 2025123 PMAQI
25th Sep 2025134 PMAQI
25th Sep 2025165 PMAQI
25th Sep 2025196 PMAQI
25th Sep 2025177 PMAQI
25th Sep 2025198 PMAQI
25th Sep 2025199 PMAQI
25th Sep 20251610 PMAQI
25th Sep 20251111 PMAQI
26th Sep 20251012 AMAQI
26th Sep 202591 AMAQI
26th Sep 2025112 AMAQI
26th Sep 2025143 AMAQI
26th Sep 2025144 AMAQI
26th Sep 2025125 AMAQI
23°C20/28°C
26th Sep 2025116 AMAQI
26th Sep 2025167 AMAQI
26th Sep 2025138 AMAQI
26th Sep 2025159 AMAQI
26th Sep 20252010 AMAQI
26th Sep 20251711 AMAQI
26th Sep 20251212 PMAQI
26th Sep 2025131 PMAQI
26th Sep 2025142 PMAQI
26th Sep 2025163 PMAQI
26th Sep 2025184 PMAQI
26th Sep 2025165 PMAQI
26th Sep 2025146 PMAQI
26th Sep 2025187 PMAQI
26th Sep 2025258 PMAQI
26th Sep 2025449 PMAQI
26th Sep 20254710 PMAQI
26th Sep 20254711 PMAQI
27th Sep 20254612 AMAQI
27th Sep 2025431 AMAQI
27th Sep 2025432 AMAQI
27th Sep 2025473 AMAQI
27th Sep 2025454 AMAQI
27th Sep 2025465 AMAQI
23°C20/28°C
27th Sep 2025426 AMAQI
27th Sep 2025397 AMAQI
27th Sep 2025398 AMAQI
27th Sep 2025399 AMAQI
27th Sep 20253910 AMAQI
27th Sep 20253811 AMAQI
27th Sep 20253912 PMAQI
27th Sep 2025391 PMAQI
27th Sep 2025392 PMAQI
27th Sep 2025393 PMAQI
27th Sep 2025354 PMAQI
27th Sep 2025335 PMAQI
27th Sep 2025376 PMAQI
27th Sep 2025407 PMAQI
27th Sep 2025418 PMAQI
27th Sep 2025449 PMAQI
27th Sep 20254410 PMAQI
27th Sep 20254411 PMAQI
28th Sep 20254812 AMAQI
28th Sep 2025471 AMAQI
28th Sep 2025442 AMAQI
28th Sep 2025443 AMAQI
28th Sep 2025444 AMAQI
28th Sep 2025405 AMAQI
24°C21/28°C
28th Sep 2025426 AMAQI
6 AM28th Sep 2025417 AMAQI
28th Sep 2025418 AMAQI
28th Sep 2025449 AMAQI
28th Sep 20254510 AMAQI
28th Sep 20254811 AMAQI
12 PM
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM
48AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 PM - 5 PM
36AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 AM (Avg. 48), while the lowest AQI was between 3 PM to 5 PM (Avg. 36).
Night time
Avg. Highest Time
12 AM - 5 AM
48AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
7 PM
44AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 48), while the lowest AQI was between 7 PM to 7 PM (Avg. 44).
2025 Days Vs Air Quality
Den Chai District, Phrae, Thailand
2025
21%
56
57%
153
20%
53
3%
8
Total number of days with different AQI categories in last 271 days in 2025 (94 days remaining)
Good
56 DaysModerate
153 DaysPoor
53 DaysUnhealthy
8 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 21%
Health Risk Level:
Very high
In 2025, 21% of 271 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
Den Chai District, Phrae, 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
79AQI
79AQI
3rd January 2025
77AQI
77AQI
4th January 2025
84AQI
84AQI
5th January 2025
96AQI
96AQI
6th January 2025
103AQI
103AQI
7th January 2025
108AQI
108AQI
8th January 2025
112AQI
112AQI
9th January 2025
120AQI
120AQI
10th January 2025
96AQI
96AQI
11th January 2025
90AQI
90AQI
12th January 2025
90AQI
90AQI
13th January 2025
93AQI
93AQI
14th January 2025
96AQI
96AQI
15th January 2025
96AQI
96AQI
16th January 2025
89AQI
89AQI
17th January 2025
88AQI
88AQI
18th January 2025
92AQI
92AQI
19th January 2025
99AQI
99AQI
20th January 2025
105AQI
105AQI
21st January 2025
116AQI
116AQI
22nd January 2025
121AQI
121AQI
23rd January 2025
123AQI
123AQI
24th January 2025
121AQI
121AQI
25th January 2025
109AQI
109AQI
26th January 2025
107AQI
107AQI
27th January 2025
83AQI
83AQI
28th January 2025
82AQI
82AQI
29th January 2025
100AQI
100AQI
30th January 2025
110AQI
110AQI
31st January 2025
105AQI
105AQI
1st February 2025
103AQI
103AQI
2nd February 2025
100AQI
100AQI
3rd February 2025
113AQI
113AQI
4th February 2025
116AQI
116AQI
5th February 2025
112AQI
112AQI
6th February 2025
116AQI
116AQI
7th February 2025
117AQI
117AQI
8th February 2025
113AQI
113AQI
9th February 2025
92AQI
92AQI
10th February 2025
98AQI
98AQI
11th February 2025
109AQI
109AQI
12th February 2025
114AQI
114AQI
13th February 2025
122AQI
122AQI
14th February 2025
122AQI
122AQI
15th February 2025
115AQI
115AQI
16th February 2025
141AQI
141AQI
17th February 2025
143AQI
143AQI
18th February 2025
140AQI
140AQI
19th February 2025
114AQI
114AQI
20th February 2025
112AQI
112AQI
21st February 2025
105AQI
105AQI
22nd February 2025
98AQI
98AQI
23rd February 2025
91AQI
91AQI
24th February 2025
74AQI
74AQI
25th February 2025
64AQI
64AQI
26th February 2025
54AQI
54AQI
27th February 2025
64AQI
64AQI
28th February 2025
70AQI
70AQI
1st March 2025
75AQI
75AQI
2nd March 2025
80AQI
80AQI
3rd March 2025
98AQI
98AQI
4th March 2025
115AQI
115AQI
5th March 2025
135AQI
135AQI
6th March 2025
132AQI
132AQI
7th March 2025
135AQI
135AQI
8th March 2025
104AQI
104AQI
9th March 2025
98AQI
98AQI
10th March 2025
86AQI
86AQI
11th March 2025
105AQI
105AQI
12th March 2025
111AQI
111AQI
13th March 2025
101AQI
101AQI
14th March 2025
100AQI
100AQI
15th March 2025
127AQI
127AQI
16th March 2025
123AQI
123AQI
17th March 2025
130AQI
130AQI
18th March 2025
120AQI
120AQI
19th March 2025
99AQI
99AQI
20th March 2025
96AQI
96AQI
21st March 2025
126AQI
126AQI
22nd March 2025
150AQI
150AQI
23rd March 2025
157AQI
157AQI
24th March 2025
162AQI
162AQI
25th March 2025
161AQI
161AQI
26th March 2025
157AQI
157AQI
27th March 2025
158AQI
158AQI
28th March 2025
160AQI
160AQI
29th March 2025
155AQI
155AQI
30th March 2025
157AQI
157AQI
31st March 2025
138AQI
138AQI
1st April 2025
124AQI
124AQI
2nd April 2025
118AQI
118AQI
3rd April 2025
131AQI
131AQI
4th April 2025
126AQI
126AQI
5th April 2025
114AQI
114AQI
6th April 2025
100AQI
100AQI
7th April 2025
90AQI
90AQI
8th April 2025
86AQI
86AQI
9th April 2025
98AQI
98AQI
10th April 2025
104AQI
104AQI
11th April 2025
99AQI
99AQI
12th April 2025
76AQI
76AQI
13th April 2025
62AQI
62AQI
14th April 2025
56AQI
56AQI
15th April 2025
56AQI
56AQI
16th April 2025
55AQI
55AQI
17th April 2025
55AQI
55AQI
18th April 2025
53AQI
53AQI
19th April 2025
56AQI
56AQI
20th April 2025
59AQI
59AQI
21st April 2025
66AQI
66AQI
22nd April 2025
73AQI
73AQI
23rd April 2025
85AQI
85AQI
24th April 2025
94AQI
94AQI
25th April 2025
102AQI
102AQI
26th April 2025
100AQI
100AQI
27th April 2025
88AQI
88AQI
28th April 2025
74AQI
74AQI
29th April 2025
69AQI
69AQI
30th April 2025
67AQI
67AQI
1st May 2025
62AQI
62AQI
2nd May 2025
67AQI
67AQI
3rd May 2025
64AQI
64AQI
4th May 2025
70AQI
70AQI
5th May 2025
71AQI
71AQI
6th May 2025
69AQI
69AQI
7th May 2025
68AQI
68AQI
8th May 2025
67AQI
67AQI
9th May 2025
67AQI
67AQI
10th May 2025
64AQI
64AQI
11th May 2025
60AQI
60AQI
12th May 2025
51AQI
51AQI
13th May 2025
60AQI
60AQI
14th May 2025
65AQI
65AQI
15th May 2025
60AQI
60AQI
16th May 2025
62AQI
62AQI
17th May 2025
68AQI
68AQI
18th May 2025
56AQI
56AQI
19th May 2025
58AQI
58AQI
20th May 2025
60AQI
60AQI
21st May 2025
57AQI
57AQI
22nd May 2025
58AQI
58AQI
23rd May 2025
56AQI
56AQI
24th May 2025
52AQI
52AQI
25th May 2025
51AQI
51AQI
26th May 2025
48AQI
48AQI
27th May 2025
50AQI
50AQI
28th May 2025
45AQI
45AQI
29th May 2025
50AQI
50AQI
30th May 2025
50AQI
50AQI
31st May 2025
50AQI
50AQI
1st June 2025
52AQI
52AQI
2nd June 2025
53AQI
53AQI
3rd June 2025
55AQI
55AQI
4th June 2025
61AQI
61AQI
5th June 2025
62AQI
62AQI
6th June 2025
62AQI
62AQI
7th June 2025
63AQI
63AQI
8th June 2025
59AQI
59AQI
9th June 2025
59AQI
59AQI
10th June 2025
59AQI
59AQI
11th June 2025
54AQI
54AQI
12th June 2025
56AQI
56AQI
13th June 2025
58AQI
58AQI
14th June 2025
55AQI
55AQI
15th June 2025
53AQI
53AQI
16th June 2025
52AQI
52AQI
17th June 2025
52AQI
52AQI
18th June 2025
49AQI
49AQI
19th June 2025
48AQI
48AQI
20th June 2025
49AQI
49AQI
21st June 2025
51AQI
51AQI
22nd June 2025
51AQI
51AQI
23rd June 2025
49AQI
49AQI
24th June 2025
51AQI
51AQI
25th June 2025
51AQI
51AQI
26th June 2025
53AQI
53AQI
27th June 2025
51AQI
51AQI
28th June 2025
51AQI
51AQI
29th June 2025
53AQI
53AQI
30th June 2025
54AQI
54AQI
1st July 2025
55AQI
55AQI
2nd July 2025
55AQI
55AQI
3rd July 2025
56AQI
56AQI
4th July 2025
53AQI
53AQI
5th July 2025
55AQI
55AQI
6th July 2025
52AQI
52AQI
7th July 2025
51AQI
51AQI
8th July 2025
53AQI
53AQI
9th July 2025
55AQI
55AQI
10th July 2025
56AQI
56AQI
11th July 2025
56AQI
56AQI
12th July 2025
53AQI
53AQI
13th July 2025
53AQI
53AQI
14th July 2025
53AQI
53AQI
15th July 2025
52AQI
52AQI
16th July 2025
50AQI
50AQI
17th July 2025
47AQI
47AQI
18th July 2025
45AQI
45AQI
19th July 2025
45AQI
45AQI
20th July 2025
45AQI
45AQI
21st July 2025
47AQI
47AQI
22nd July 2025
49AQI
49AQI
23rd July 2025
42AQI
42AQI
24th July 2025
44AQI
44AQI
25th July 2025
48AQI
48AQI
26th July 2025
51AQI
51AQI
27th July 2025
48AQI
48AQI
28th July 2025
49AQI
49AQI
29th July 2025
48AQI
48AQI
30th July 2025
52AQI
52AQI
31st July 2025
56AQI
56AQI
1st August 2025
58AQI
58AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
56AQI
56AQI
4th August 2025
57AQI
57AQI
5th August 2025
54AQI
54AQI
6th August 2025
50AQI
50AQI
7th August 2025
43AQI
43AQI
8th August 2025
41AQI
41AQI
9th August 2025
36AQI
36AQI
10th August 2025
31AQI
31AQI
11th August 2025
37AQI
37AQI
12th August 2025
48AQI
48AQI
13th August 2025
48AQI
48AQI
14th August 2025
49AQI
49AQI
15th August 2025
46AQI
46AQI
16th August 2025
47AQI
47AQI
17th August 2025
47AQI
47AQI
18th August 2025
52AQI
52AQI
19th August 2025
50AQI
50AQI
20th August 2025
53AQI
53AQI
21st August 2025
56AQI
56AQI
22nd August 2025
56AQI
56AQI
23rd August 2025
51AQI
51AQI
24th August 2025
51AQI
51AQI
25th August 2025
55AQI
55AQI
26th August 2025
48AQI
48AQI
27th August 2025
49AQI
49AQI
28th August 2025
51AQI
51AQI
29th August 2025
52AQI
52AQI
30th August 2025
52AQI
52AQI
31st August 2025
51AQI
51AQI
1st September 2025
52AQI
52AQI
2nd September 2025
52AQI
52AQI
3rd September 2025
57AQI
57AQI
4th September 2025
44AQI
44AQI
5th September 2025
54AQI
54AQI
6th September 2025
54AQI
54AQI
7th September 2025
57AQI
57AQI
8th September 2025
53AQI
53AQI
9th September 2025
51AQI
51AQI
10th September 2025
46AQI
46AQI
11th September 2025
47AQI
47AQI
12th September 2025
50AQI
50AQI
13th September 2025
50AQI
50AQI
14th September 2025
48AQI
48AQI
15th September 2025
51AQI
51AQI
16th September 2025
44AQI
44AQI
17th September 2025
49AQI
49AQI
18th September 2025
46AQI
46AQI
19th September 2025
40AQI
40AQI
20th September 2025
33AQI
33AQI
21st September 2025
31AQI
31AQI
22nd September 2025
26AQI
26AQI
23rd September 2025
23AQI
23AQI
24th September 2025
20AQI
20AQI
25th September 2025
20AQI
20AQI
26th September 2025
18AQI
18AQI
27th September 2025
44AQI
44AQI
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
99AQI
105AQI
124AQI
85AQI
59AQI
54AQI
51AQI
49AQI
43AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202575AQI
18
13
10
18
8
15
8
23
7
6
25
4
26
13
18
15
16
18
9
56
153
53
8
Highest AQI recorded in
March124AQI
Lowest AQI recorded in
September43AQI
202466AQI
1
24
6
3
12
14
5
22
4
1
2
24
3
15
10
6
30
31
31
3
6
7
30
1
30
122
120
72
7
Highest AQI recorded in
March124AQI
Lowest AQI recorded in
September11AQI
2023105AQI
9
21
1
1
10
17
4
22
5
2
8
19
1
20
11
22
8
16
3
31
38
74
54
59
6
Highest AQI recorded in
March176AQI
Lowest AQI recorded in
July25AQI
202286AQI
2
1
3
25
3
11
3
30
12
Highest AQI recorded in
December113AQI
Lowest AQI recorded in
November72AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2023(Avg.)
105AQILeast Polluted Year Recorded
2024(Avg.)
66AQIDen Chai District's annual 2025 AQI (75) shows an average percentage change of -9.6% (improved AQI) compared to previous years: 2022 (86), 2023 (105), 2024 (66).
