Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Chiang Khong, 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+

July Air Quality Analysis

Chiang Khong, Chiang Rai, Thailand

2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
11th Jul 2023
66AQI
Lowest AQI recorded on
4th Jul 2023
18AQI

Same Day Analysis (29th July ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 40 of Good air quality, showing improvement over 2024 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 30th Jul - 31st Jul 2025

Chiang Khong, Chiang Rai, Thailand

AQI
Day
Night
.

5 AM30th Jul 2025

7 PM

4 AM31st Jul 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
11PM30th Jul

53AQI

Avg. Lowest Time
10AM30th Jul

30AQI

In the last 24 hours,

Chiang Khong's AQI reached its highest point of 53 at 11 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 30th Jul and 31st Jul 2025.

Day & Night AQI Trend : Jul 2025

Chiang Khong, Chiang Rai, Thailand

Jul
01st - 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 - 31st31st
Day
Night
1st Jul 2025525 AMAQI
1st Jul 2025536 AMAQI
1st Jul 2025557 AMAQI
1st Jul 2025548 AMAQI
1st Jul 2025539 AMAQI
1st Jul 20255410 AMAQI
1st Jul 20254211 AMAQI
1st Jul 20253612 PMAQI
1st Jul 2025361 PMAQI
1st Jul 2025372 PMAQI
1st Jul 2025393 PMAQI
1st Jul 2025324 PMAQI
1st Jul 2025285 PMAQI
1st Jul 2025326 PMAQI
1st Jul 2025287 PMAQI
1st Jul 2025338 PMAQI
1st Jul 2025339 PMAQI
1st Jul 20253010 PMAQI
1st Jul 20252911 PMAQI
2nd Jul 20253812 AMAQI
2nd Jul 2025521 AMAQI
2nd Jul 2025522 AMAQI
2nd Jul 2025523 AMAQI
2nd Jul 2025524 AMAQI

23°C23/25°C

2nd Jul 2025525 AMAQI
2nd Jul 2025526 AMAQI
2nd Jul 2025407 AMAQI
2nd Jul 2025388 AMAQI
2nd Jul 2025369 AMAQI
2nd Jul 20254010 AMAQI
2nd Jul 20254011 AMAQI
2nd Jul 20254112 PMAQI
2nd Jul 2025381 PMAQI
2nd Jul 2025362 PMAQI
2nd Jul 2025373 PMAQI
2nd Jul 2025394 PMAQI
2nd Jul 2025465 PMAQI
2nd Jul 2025426 PMAQI
2nd Jul 2025437 PMAQI
2nd Jul 2025438 PMAQI
2nd Jul 2025439 PMAQI
2nd Jul 20254310 PMAQI
2nd Jul 20254311 PMAQI
3rd Jul 20255312 AMAQI
3rd Jul 2025501 AMAQI
3rd Jul 2025492 AMAQI
3rd Jul 2025493 AMAQI
3rd Jul 2025494 AMAQI

23°C22/25°C

3rd Jul 2025495 AMAQI
3rd Jul 2025496 AMAQI
3rd Jul 2025547 AMAQI
3rd Jul 2025668 AMAQI
3rd Jul 2025769 AMAQI
3rd Jul 20257610 AMAQI
3rd Jul 20257611 AMAQI
3rd Jul 20257612 PMAQI
3rd Jul 2025761 PMAQI
3rd Jul 2025762 PMAQI
3rd Jul 2025763 PMAQI
3rd Jul 2025524 PMAQI
3rd Jul 2025505 PMAQI
3rd Jul 2025546 PMAQI
3rd Jul 2025547 PMAQI
3rd Jul 2025498 PMAQI
3rd Jul 2025509 PMAQI
3rd Jul 20254710 PMAQI
3rd Jul 20254011 PMAQI
4th Jul 20254712 AMAQI
4th Jul 2025521 AMAQI
4th Jul 2025522 AMAQI
4th Jul 2025533 AMAQI
4th Jul 2025534 AMAQI

23°C22/26°C

4th Jul 2025535 AMAQI
4th Jul 2025536 AMAQI
4th Jul 2025447 AMAQI
4th Jul 2025448 AMAQI
4th Jul 2025429 AMAQI
4th Jul 20253410 AMAQI
4th Jul 20254411 AMAQI
4th Jul 20254212 PMAQI
4th Jul 2025421 PMAQI
4th Jul 2025442 PMAQI
4th Jul 2025433 PMAQI
4th Jul 2025424 PMAQI
4th Jul 2025405 PMAQI
4th Jul 2025386 PMAQI
4th Jul 2025457 PMAQI
4th Jul 2025498 PMAQI
4th Jul 2025489 PMAQI
4th Jul 20255010 PMAQI
4th Jul 20255011 PMAQI
5th Jul 20255112 AMAQI
5th Jul 2025541 AMAQI
5th Jul 2025542 AMAQI
5th Jul 2025533 AMAQI
5th Jul 2025524 AMAQI

24°C22/27°C

5th Jul 2025525 AMAQI
5th Jul 2025536 AMAQI
5th Jul 2025337 AMAQI
5th Jul 2025268 AMAQI
5th Jul 2025289 AMAQI
5th Jul 20253010 AMAQI
5th Jul 20253711 AMAQI
5th Jul 20252612 PMAQI
5th Jul 2025281 PMAQI
5th Jul 2025242 PMAQI
5th Jul 2025253 PMAQI
5th Jul 2025324 PMAQI
5th Jul 2025245 PMAQI
5th Jul 2025296 PMAQI
5th Jul 2025267 PMAQI
5th Jul 2025288 PMAQI
5th Jul 2025549 PMAQI
5th Jul 20255510 PMAQI
5th Jul 20255011 PMAQI
6th Jul 20255012 AMAQI
6th Jul 2025461 AMAQI
6th Jul 2025462 AMAQI
6th Jul 2025483 AMAQI
6th Jul 2025474 AMAQI

24°C22/30°C

6th Jul 2025505 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025417 AMAQI
6th Jul 2025298 AMAQI
6th Jul 2025279 AMAQI
6th Jul 20252410 AMAQI
6th Jul 20253111 AMAQI
6th Jul 20252812 PMAQI
6th Jul 2025351 PMAQI
6th Jul 2025232 PMAQI
6th Jul 2025323 PMAQI
6th Jul 2025404 PMAQI
6th Jul 2025385 PMAQI
6th Jul 2025376 PMAQI
6th Jul 2025457 PMAQI
6th Jul 2025428 PMAQI
6th Jul 2025429 PMAQI
6th Jul 20254510 PMAQI
6th Jul 20254111 PMAQI
7th Jul 20253512 AMAQI
7th Jul 2025341 AMAQI
7th Jul 2025392 AMAQI
7th Jul 2025513 AMAQI
7th Jul 2025514 AMAQI

23°C23/24°C

7th Jul 2025515 AMAQI
7th Jul 2025476 AMAQI
7th Jul 2025397 AMAQI
7th Jul 2025428 AMAQI
7th Jul 2025419 AMAQI
7th Jul 20253510 AMAQI
7th Jul 20253811 AMAQI
7th Jul 20253812 PMAQI
7th Jul 2025241 PMAQI
7th Jul 2025252 PMAQI
7th Jul 2025233 PMAQI
7th Jul 2025344 PMAQI
7th Jul 2025355 PMAQI
7th Jul 2025396 PMAQI
7th Jul 2025367 PMAQI
7th Jul 2025438 PMAQI
7th Jul 2025439 PMAQI
7th Jul 20254410 PMAQI
7th Jul 20254111 PMAQI
8th Jul 20254512 AMAQI
8th Jul 2025511 AMAQI
8th Jul 2025502 AMAQI
8th Jul 2025493 AMAQI
8th Jul 2025484 AMAQI

24°C22/28°C

8th Jul 2025505 AMAQI
8th Jul 2025506 AMAQI
8th Jul 2025317 AMAQI
8th Jul 2025368 AMAQI
8th Jul 2025309 AMAQI
8th Jul 20253910 AMAQI
8th Jul 20253811 AMAQI
8th Jul 20253312 PMAQI
8th Jul 2025391 PMAQI
8th Jul 2025522 PMAQI
8th Jul 2025403 PMAQI
8th Jul 2025424 PMAQI
8th Jul 2025425 PMAQI
8th Jul 2025416 PMAQI
8th Jul 2025497 PMAQI
8th Jul 2025528 PMAQI
8th Jul 2025539 PMAQI
8th Jul 20255810 PMAQI
8th Jul 20256311 PMAQI
9th Jul 20255612 AMAQI
9th Jul 2025531 AMAQI
9th Jul 2025542 AMAQI
9th Jul 2025543 AMAQI
9th Jul 2025524 AMAQI

25°C23/29°C

9th Jul 2025515 AMAQI
9th Jul 2025506 AMAQI
9th Jul 2025497 AMAQI
9th Jul 2025568 AMAQI
9th Jul 2025619 AMAQI
9th Jul 20255210 AMAQI
9th Jul 20255511 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025461 PMAQI
9th Jul 2025492 PMAQI
9th Jul 2025423 PMAQI
9th Jul 2025484 PMAQI
9th Jul 2025465 PMAQI
9th Jul 2025486 PMAQI
9th Jul 2025517 PMAQI
9th Jul 2025518 PMAQI
9th Jul 2025489 PMAQI
9th Jul 20255010 PMAQI
9th Jul 20254811 PMAQI
10th Jul 20255112 AMAQI
10th Jul 2025551 AMAQI
10th Jul 2025542 AMAQI
10th Jul 2025543 AMAQI
10th Jul 2025534 AMAQI

25°C23/29°C

10th Jul 2025525 AMAQI
10th Jul 2025536 AMAQI
10th Jul 2025407 AMAQI
10th Jul 2025398 AMAQI
10th Jul 2025469 AMAQI
10th Jul 20252810 AMAQI
10th Jul 20254411 AMAQI
10th Jul 20255012 PMAQI
10th Jul 2025521 PMAQI
10th Jul 2025502 PMAQI
10th Jul 2025503 PMAQI
10th Jul 2025504 PMAQI
10th Jul 2025525 PMAQI
10th Jul 2025556 PMAQI
10th Jul 2025547 PMAQI
10th Jul 2025538 PMAQI
10th Jul 2025539 PMAQI
10th Jul 20255310 PMAQI
10th Jul 20254211 PMAQI
11th Jul 20253212 AMAQI
11th Jul 2025311 AMAQI
11th Jul 2025552 AMAQI
11th Jul 2025543 AMAQI
11th Jul 2025554 AMAQI

25°C23/29°C

11th Jul 2025555 AMAQI
11th Jul 2025556 AMAQI
11th Jul 2025417 AMAQI
11th Jul 2025408 AMAQI
11th Jul 2025459 AMAQI
11th Jul 20254210 AMAQI
11th Jul 20254811 AMAQI
11th Jul 20254612 PMAQI
11th Jul 2025401 PMAQI
11th Jul 2025452 PMAQI
11th Jul 2025463 PMAQI
11th Jul 2025474 PMAQI
11th Jul 2025485 PMAQI
11th Jul 2025506 PMAQI
11th Jul 2025547 PMAQI
11th Jul 2025538 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255410 PMAQI
11th Jul 20255211 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025551 AMAQI
12th Jul 2025542 AMAQI
12th Jul 2025543 AMAQI
12th Jul 2025544 AMAQI

24°C22/27°C

12th Jul 2025545 AMAQI
12th Jul 2025546 AMAQI
12th Jul 2025447 AMAQI
12th Jul 2025368 AMAQI
12th Jul 2025409 AMAQI
12th Jul 20253610 AMAQI
12th Jul 20253411 AMAQI
12th Jul 20253612 PMAQI
12th Jul 2025351 PMAQI
12th Jul 2025332 PMAQI
12th Jul 2025343 PMAQI
12th Jul 2025364 PMAQI
12th Jul 2025355 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025437 PMAQI
12th Jul 2025478 PMAQI
12th Jul 2025289 PMAQI
12th Jul 20253610 PMAQI
12th Jul 20253211 PMAQI
13th Jul 20254212 AMAQI
13th Jul 2025541 AMAQI
13th Jul 2025542 AMAQI
13th Jul 2025533 AMAQI
13th Jul 2025524 AMAQI

24°C22/29°C

13th Jul 2025535 AMAQI
13th Jul 2025546 AMAQI
13th Jul 2025437 AMAQI
13th Jul 2025468 AMAQI
13th Jul 2025379 AMAQI
13th Jul 20254210 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20253912 PMAQI
13th Jul 2025321 PMAQI
13th Jul 2025292 PMAQI
13th Jul 2025373 PMAQI
13th Jul 2025394 PMAQI
13th Jul 2025425 PMAQI
13th Jul 2025426 PMAQI
13th Jul 2025497 PMAQI
13th Jul 2025478 PMAQI
13th Jul 2025489 PMAQI
13th Jul 20255110 PMAQI
13th Jul 20255011 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025532 AMAQI
14th Jul 2025523 AMAQI
14th Jul 2025524 AMAQI

26°C23/32°C

14th Jul 2025525 AMAQI
14th Jul 2025536 AMAQI
14th Jul 2025397 AMAQI
14th Jul 2025388 AMAQI
14th Jul 2025329 AMAQI
14th Jul 20253310 AMAQI
14th Jul 20253611 AMAQI
14th Jul 20253412 PMAQI
14th Jul 2025481 PMAQI
14th Jul 2025432 PMAQI
14th Jul 2025413 PMAQI
14th Jul 2025404 PMAQI
14th Jul 2025485 PMAQI
14th Jul 2025406 PMAQI
14th Jul 2025507 PMAQI
14th Jul 2025518 PMAQI
14th Jul 2025509 PMAQI
14th Jul 20255110 PMAQI
14th Jul 20255011 PMAQI
15th Jul 20254712 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025532 AMAQI
15th Jul 2025523 AMAQI
15th Jul 2025514 AMAQI

26°C23/31°C

15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025387 AMAQI
15th Jul 2025448 AMAQI
15th Jul 2025349 AMAQI
15th Jul 20253310 AMAQI
15th Jul 20254311 AMAQI
15th Jul 20254212 PMAQI
15th Jul 2025441 PMAQI
15th Jul 2025422 PMAQI
15th Jul 2025373 PMAQI
15th Jul 2025324 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025326 PMAQI
15th Jul 2025337 PMAQI
15th Jul 2025418 PMAQI
15th Jul 2025479 PMAQI
15th Jul 20255010 PMAQI
15th Jul 20255011 PMAQI
16th Jul 20255012 AMAQI
16th Jul 2025511 AMAQI
16th Jul 2025502 AMAQI
16th Jul 2025493 AMAQI
16th Jul 2025494 AMAQI

24°C23/27°C

16th Jul 2025485 AMAQI
16th Jul 2025486 AMAQI
16th Jul 2025447 AMAQI
16th Jul 2025398 AMAQI
16th Jul 2025429 AMAQI
16th Jul 20254910 AMAQI
16th Jul 20254711 AMAQI
16th Jul 20254612 PMAQI
16th Jul 2025471 PMAQI
16th Jul 2025482 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025435 PMAQI
16th Jul 2025396 PMAQI
16th Jul 2025427 PMAQI
16th Jul 2025438 PMAQI
16th Jul 2025489 PMAQI
16th Jul 20255110 PMAQI
16th Jul 20254911 PMAQI
17th Jul 20255012 AMAQI
17th Jul 2025491 AMAQI
17th Jul 2025482 AMAQI
17th Jul 2025483 AMAQI
17th Jul 2025494 AMAQI

24°C23/25°C

17th Jul 2025485 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025547 AMAQI
17th Jul 2025448 AMAQI
17th Jul 2025469 AMAQI
17th Jul 20254410 AMAQI
17th Jul 20254611 AMAQI
17th Jul 20254312 PMAQI
17th Jul 2025401 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025393 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025375 PMAQI
17th Jul 2025376 PMAQI
17th Jul 2025447 PMAQI
17th Jul 2025448 PMAQI
17th Jul 2025489 PMAQI
17th Jul 20254910 PMAQI
17th Jul 20255111 PMAQI
18th Jul 20255012 AMAQI
18th Jul 2025511 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025503 AMAQI
18th Jul 2025504 AMAQI

23°C22/24°C

18th Jul 2025495 AMAQI
18th Jul 2025486 AMAQI
18th Jul 2025457 AMAQI
18th Jul 2025408 AMAQI
18th Jul 2025389 AMAQI
18th Jul 20253910 AMAQI
18th Jul 20253711 AMAQI
18th Jul 20253812 PMAQI
18th Jul 2025361 PMAQI
18th Jul 2025392 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025294 PMAQI
18th Jul 2025415 PMAQI
18th Jul 2025406 PMAQI
18th Jul 2025437 PMAQI
18th Jul 2025468 PMAQI
18th Jul 2025349 PMAQI
18th Jul 20253210 PMAQI
18th Jul 20255111 PMAQI
19th Jul 20254812 AMAQI
19th Jul 2025491 AMAQI
19th Jul 2025512 AMAQI
19th Jul 2025503 AMAQI
19th Jul 2025504 AMAQI

25°C22/30°C

19th Jul 2025515 AMAQI
19th Jul 2025506 AMAQI
19th Jul 2025347 AMAQI
19th Jul 2025498 AMAQI
19th Jul 2025449 AMAQI
19th Jul 20254010 AMAQI
19th Jul 20254211 AMAQI
19th Jul 20253612 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025302 PMAQI
19th Jul 2025323 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025345 PMAQI
19th Jul 2025376 PMAQI
19th Jul 2025427 PMAQI
19th Jul 2025348 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253010 PMAQI
19th Jul 20253611 PMAQI
20th Jul 20254512 AMAQI
20th Jul 2025521 AMAQI
20th Jul 2025482 AMAQI
20th Jul 2025483 AMAQI
20th Jul 2025484 AMAQI

25°C22/31°C

20th Jul 2025455 AMAQI
20th Jul 2025466 AMAQI
20th Jul 2025457 AMAQI
20th Jul 2025468 AMAQI
20th Jul 2025459 AMAQI
20th Jul 20253910 AMAQI
20th Jul 20254011 AMAQI
20th Jul 20254312 PMAQI
20th Jul 2025311 PMAQI
20th Jul 2025322 PMAQI
20th Jul 2025303 PMAQI
20th Jul 2025274 PMAQI
20th Jul 2025305 PMAQI
20th Jul 2025326 PMAQI
20th Jul 2025367 PMAQI
20th Jul 2025358 PMAQI
20th Jul 2025329 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20254911 PMAQI
21st Jul 20255012 AMAQI
21st Jul 2025501 AMAQI
21st Jul 2025482 AMAQI
21st Jul 2025473 AMAQI
21st Jul 2025484 AMAQI

25°C22/31°C

21st Jul 2025465 AMAQI
21st Jul 2025496 AMAQI
21st Jul 2025407 AMAQI
21st Jul 2025408 AMAQI
21st Jul 2025419 AMAQI
21st Jul 20253910 AMAQI
21st Jul 20254111 AMAQI
21st Jul 20254212 PMAQI
21st Jul 2025461 PMAQI
21st Jul 2025452 PMAQI
21st Jul 2025373 PMAQI
21st Jul 2025364 PMAQI
21st Jul 2025375 PMAQI
21st Jul 2025396 PMAQI
21st Jul 2025477 PMAQI
21st Jul 2025488 PMAQI
21st Jul 2025429 PMAQI
21st Jul 20255010 PMAQI
21st Jul 20253811 PMAQI
22nd Jul 20253412 AMAQI
22nd Jul 2025501 AMAQI
22nd Jul 2025512 AMAQI
22nd Jul 2025503 AMAQI
22nd Jul 2025504 AMAQI

24°C21/30°C

22nd Jul 2025525 AMAQI
22nd Jul 2025526 AMAQI
22nd Jul 2025497 AMAQI
22nd Jul 2025448 AMAQI
22nd Jul 2025489 AMAQI
22nd Jul 20254810 AMAQI
22nd Jul 20254711 AMAQI
22nd Jul 20254212 PMAQI
22nd Jul 2025391 PMAQI
22nd Jul 2025382 PMAQI
22nd Jul 2025323 PMAQI
22nd Jul 2025354 PMAQI
22nd Jul 2025335 PMAQI
22nd Jul 2025346 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025448 PMAQI
22nd Jul 2025469 PMAQI
22nd Jul 20255010 PMAQI
22nd Jul 20254911 PMAQI
23rd Jul 20255212 AMAQI
23rd Jul 2025511 AMAQI
23rd Jul 2025512 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025494 AMAQI

23°C23/23°C

23rd Jul 2025505 AMAQI
23rd Jul 2025486 AMAQI
23rd Jul 2025287 AMAQI
23rd Jul 2025228 AMAQI
23rd Jul 2025259 AMAQI
23rd Jul 20253010 AMAQI
23rd Jul 20253611 AMAQI
23rd Jul 20253512 PMAQI
23rd Jul 2025321 PMAQI
23rd Jul 2025322 PMAQI
23rd Jul 2025403 PMAQI
23rd Jul 2025364 PMAQI
23rd Jul 2025455 PMAQI
23rd Jul 2025456 PMAQI
23rd Jul 2025427 PMAQI
23rd Jul 2025408 PMAQI
23rd Jul 2025409 PMAQI
23rd Jul 20254110 PMAQI
23rd Jul 20254111 PMAQI
24th Jul 20254412 AMAQI
24th Jul 2025481 AMAQI
24th Jul 2025502 AMAQI
24th Jul 2025483 AMAQI
24th Jul 2025484 AMAQI

23°C22/24°C

24th Jul 2025475 AMAQI
24th Jul 2025476 AMAQI
24th Jul 2025367 AMAQI
24th Jul 2025288 AMAQI
24th Jul 2025269 AMAQI
24th Jul 20252610 AMAQI
24th Jul 20252811 AMAQI
24th Jul 20252212 PMAQI
24th Jul 2025241 PMAQI
24th Jul 2025322 PMAQI
24th Jul 2025283 PMAQI
24th Jul 2025254 PMAQI
24th Jul 2025285 PMAQI
24th Jul 2025326 PMAQI
24th Jul 2025387 PMAQI
24th Jul 2025388 PMAQI
24th Jul 2025389 PMAQI
24th Jul 20254010 PMAQI
24th Jul 20254011 PMAQI
25th Jul 20254212 AMAQI
25th Jul 2025451 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025403 AMAQI
25th Jul 2025404 AMAQI

24°C22/27°C

25th Jul 2025415 AMAQI
25th Jul 2025406 AMAQI
25th Jul 2025377 AMAQI
25th Jul 2025268 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20252510 AMAQI
25th Jul 20253411 AMAQI
25th Jul 20253112 PMAQI
25th Jul 2025331 PMAQI
25th Jul 2025292 PMAQI
25th Jul 2025283 PMAQI
25th Jul 2025244 PMAQI
25th Jul 2025265 PMAQI
25th Jul 2025326 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025418 PMAQI
25th Jul 2025409 PMAQI
25th Jul 20254310 PMAQI
25th Jul 20254411 PMAQI
26th Jul 20254512 AMAQI
26th Jul 2025471 AMAQI
26th Jul 2025462 AMAQI
26th Jul 2025443 AMAQI
26th Jul 2025474 AMAQI

24°C23/27°C

26th Jul 2025465 AMAQI
26th Jul 2025446 AMAQI
26th Jul 2025317 AMAQI
26th Jul 2025308 AMAQI
26th Jul 2025309 AMAQI
26th Jul 20253310 AMAQI
26th Jul 20253211 AMAQI
26th Jul 20253612 PMAQI
26th Jul 2025321 PMAQI
26th Jul 2025302 PMAQI
26th Jul 2025283 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025345 PMAQI
26th Jul 2025376 PMAQI
26th Jul 2025417 PMAQI
26th Jul 2025418 PMAQI
26th Jul 2025439 PMAQI
26th Jul 20254510 PMAQI
26th Jul 20254611 PMAQI
27th Jul 20254412 AMAQI
27th Jul 2025491 AMAQI
27th Jul 2025482 AMAQI
27th Jul 2025423 AMAQI
27th Jul 2025444 AMAQI

24°C23/28°C

27th Jul 2025445 AMAQI
27th Jul 2025436 AMAQI
27th Jul 2025357 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025339 AMAQI
27th Jul 20253210 AMAQI
27th Jul 20253211 AMAQI
27th Jul 20253512 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025262 PMAQI
27th Jul 2025263 PMAQI
27th Jul 2025284 PMAQI
27th Jul 2025285 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025377 PMAQI
27th Jul 2025388 PMAQI
27th Jul 2025389 PMAQI
27th Jul 20253910 PMAQI
27th Jul 20253711 PMAQI
28th Jul 20254212 AMAQI
28th Jul 2025451 AMAQI
28th Jul 2025442 AMAQI
28th Jul 2025433 AMAQI
28th Jul 2025454 AMAQI

23°C22/25°C

28th Jul 2025445 AMAQI
28th Jul 2025456 AMAQI
28th Jul 2025307 AMAQI
28th Jul 2025308 AMAQI
28th Jul 2025289 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025342 PMAQI
28th Jul 2025313 PMAQI
28th Jul 2025284 PMAQI
28th Jul 2025365 PMAQI
28th Jul 2025376 PMAQI
28th Jul 2025417 PMAQI
28th Jul 2025468 PMAQI
28th Jul 2025459 PMAQI
28th Jul 20254110 PMAQI
28th Jul 20254211 PMAQI
29th Jul 20254312 AMAQI
29th Jul 2025461 AMAQI
29th Jul 2025442 AMAQI
29th Jul 2025433 AMAQI
29th Jul 2025424 AMAQI

23°C22/24°C

29th Jul 2025435 AMAQI
29th Jul 2025446 AMAQI
29th Jul 2025377 AMAQI
29th Jul 2025388 AMAQI
29th Jul 2025259 AMAQI
29th Jul 20253310 AMAQI
29th Jul 20253011 AMAQI
29th Jul 20253112 PMAQI
29th Jul 2025341 PMAQI
29th Jul 2025292 PMAQI
29th Jul 2025323 PMAQI
29th Jul 2025304 PMAQI
29th Jul 2025365 PMAQI
29th Jul 2025386 PMAQI
29th Jul 2025427 PMAQI
29th Jul 2025468 PMAQI
29th Jul 2025479 PMAQI
29th Jul 20254410 PMAQI
29th Jul 20253811 PMAQI
30th Jul 20254012 AMAQI
30th Jul 2025461 AMAQI
30th Jul 2025442 AMAQI
30th Jul 2025463 AMAQI
30th Jul 2025474 AMAQI

26°C22/32°C

30th Jul 2025475 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025467 AMAQI
30th Jul 2025508 AMAQI
30th Jul 2025429 AMAQI
30th Jul 20253010 AMAQI
30th Jul 20253811 AMAQI
30th Jul 20253612 PMAQI
30th Jul 2025361 PMAQI
30th Jul 2025372 PMAQI
30th Jul 2025373 PMAQI
30th Jul 2025424 PMAQI
30th Jul 2025455 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025507 PMAQI
30th Jul 2025528 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20255110 PMAQI
30th Jul 20255311 PMAQI
31st Jul 20255212 AMAQI

--°C/°C

5 AM
12 PM
7 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 6 AM

49AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
7 AM - 4 PM

39AQI

10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 AM (Avg. 49), while the lowest AQI was between 7 AM to 4 PM (Avg. 39).
Night time
Avg. Highest Time
1 AM - 4 AM

49AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
8 PM - 11 PM

45AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 49), while the lowest AQI was between 8 PM to 11 PM (Avg. 45).

2025 Days Vs Air Quality

Chiang Khong, Chiang Rai, Thailand

2025

28%

59

35%

73

33%

70

4%

8

Total number of days with different AQI categories in last 211 days in 2025 (154 days remaining)

Good
59 Days
Moderate
73 Days
Poor
70 Days
Unhealthy
8 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 28%

Health Risk Level:

Very high

In 2025, 28% of 211 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

Chiang Khong, 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
89AQI
2nd January 2025
87AQI
3rd January 2025
81AQI
4th January 2025
89AQI
5th January 2025
99AQI
6th January 2025
114AQI
7th January 2025
116AQI
8th January 2025
113AQI
9th January 2025
122AQI
10th January 2025
112AQI
11th January 2025
104AQI
12th January 2025
94AQI
13th January 2025
96AQI
14th January 2025
101AQI
15th January 2025
112AQI
16th January 2025
101AQI
17th January 2025
98AQI
18th January 2025
101AQI
19th January 2025
101AQI
20th January 2025
108AQI
21st January 2025
116AQI
22nd January 2025
120AQI
23rd January 2025
121AQI
24th January 2025
116AQI
25th January 2025
107AQI
26th January 2025
109AQI
27th January 2025
79AQI
28th January 2025
85AQI
29th January 2025
98AQI
30th January 2025
113AQI
31st January 2025
109AQI
1st February 2025
104AQI
2nd February 2025
110AQI
3rd February 2025
111AQI
4th February 2025
114AQI
5th February 2025
114AQI
6th February 2025
115AQI
7th February 2025
110AQI
8th February 2025
104AQI
9th February 2025
87AQI
10th February 2025
100AQI
11th February 2025
111AQI
12th February 2025
110AQI
13th February 2025
111AQI
14th February 2025
110AQI
15th February 2025
104AQI
16th February 2025
131AQI
17th February 2025
129AQI
18th February 2025
130AQI
19th February 2025
118AQI
20th February 2025
116AQI
21st February 2025
110AQI
22nd February 2025
107AQI
23rd February 2025
99AQI
24th February 2025
79AQI
25th February 2025
68AQI
26th February 2025
61AQI
27th February 2025
68AQI
28th February 2025
75AQI
1st March 2025
76AQI
2nd March 2025
84AQI
3rd March 2025
95AQI
4th March 2025
109AQI
5th March 2025
119AQI
6th March 2025
126AQI
7th March 2025
113AQI
8th March 2025
105AQI
9th March 2025
102AQI
10th March 2025
98AQI
11th March 2025
106AQI
12th March 2025
116AQI
13th March 2025
103AQI
14th March 2025
114AQI
15th March 2025
130AQI
16th March 2025
123AQI
17th March 2025
134AQI
18th March 2025
118AQI
19th March 2025
83AQI
20th March 2025
92AQI
21st March 2025
110AQI
22nd March 2025
134AQI
23rd March 2025
139AQI
24th March 2025
151AQI
25th March 2025
156AQI
26th March 2025
156AQI
27th March 2025
157AQI
28th March 2025
164AQI
29th March 2025
163AQI
30th March 2025
163AQI
31st March 2025
157AQI
1st April 2025
147AQI
2nd April 2025
144AQI
3rd April 2025
145AQI
4th April 2025
148AQI
5th April 2025
145AQI
6th April 2025
134AQI
7th April 2025
107AQI
8th April 2025
104AQI
9th April 2025
124AQI
10th April 2025
124AQI
11th April 2025
120AQI
12th April 2025
91AQI
13th April 2025
74AQI
14th April 2025
63AQI
15th April 2025
59AQI
16th April 2025
57AQI
17th April 2025
55AQI
18th April 2025
56AQI
19th April 2025
59AQI
20th April 2025
58AQI
21st April 2025
63AQI
22nd April 2025
79AQI
23rd April 2025
83AQI
24th April 2025
91AQI
25th April 2025
103AQI
26th April 2025
99AQI
27th April 2025
100AQI
28th April 2025
77AQI
29th April 2025
73AQI
30th April 2025
73AQI
1st May 2025
66AQI
2nd May 2025
62AQI
3rd May 2025
61AQI
4th May 2025
64AQI
5th May 2025
69AQI
6th May 2025
79AQI
7th May 2025
94AQI
8th May 2025
95AQI
9th May 2025
79AQI
10th May 2025
101AQI
11th May 2025
98AQI
12th May 2025
55AQI
13th May 2025
61AQI
14th May 2025
60AQI
15th May 2025
42AQI
16th May 2025
44AQI
17th May 2025
47AQI
18th May 2025
42AQI
19th May 2025
42AQI
20th May 2025
48AQI
21st May 2025
53AQI
22nd May 2025
51AQI
23rd May 2025
66AQI
24th May 2025
36AQI
25th May 2025
34AQI
26th May 2025
36AQI
27th May 2025
40AQI
28th May 2025
37AQI
29th May 2025
43AQI
30th May 2025
40AQI
31st May 2025
36AQI
1st June 2025
49AQI
2nd June 2025
43AQI
3rd June 2025
50AQI
4th June 2025
57AQI
5th June 2025
61AQI
6th June 2025
62AQI
7th June 2025
68AQI
8th June 2025
66AQI
9th June 2025
67AQI
10th June 2025
61AQI
11th June 2025
57AQI
12th June 2025
57AQI
13th June 2025
51AQI
14th June 2025
54AQI
15th June 2025
38AQI
16th June 2025
37AQI
17th June 2025
39AQI
18th June 2025
35AQI
19th June 2025
40AQI
20th June 2025
42AQI
21st June 2025
48AQI
22nd June 2025
58AQI
23rd June 2025
46AQI
24th June 2025
39AQI
25th June 2025
44AQI
26th June 2025
43AQI
27th June 2025
32AQI
28th June 2025
44AQI
29th June 2025
45AQI
30th June 2025
44AQI
1st July 2025
39AQI
2nd July 2025
40AQI
3rd July 2025
55AQI
4th July 2025
46AQI
5th July 2025
41AQI
6th July 2025
42AQI
7th July 2025
40AQI
8th July 2025
46AQI
9th July 2025
52AQI
10th July 2025
50AQI
11th July 2025
46AQI
12th July 2025
44AQI
13th July 2025
43AQI
14th July 2025
47AQI
15th July 2025
43AQI
16th July 2025
46AQI
17th July 2025
46AQI
18th July 2025
44AQI
19th July 2025
41AQI
20th July 2025
40AQI
21st July 2025
45AQI
22nd July 2025
42AQI
23rd July 2025
43AQI
24th July 2025
37AQI
25th July 2025
37AQI
26th July 2025
40AQI
27th July 2025
37AQI
28th July 2025
38AQI
29th July 2025
40AQI

104AQI

104AQI

122AQI

95AQI

57AQI

49AQI

43AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202582AQI

11
20
8
20
6
17
8
18
12
14
16
1
18
12
27
2
59
73
70
8

Highest AQI recorded in

March

122AQI

Lowest AQI recorded in

July

43AQI

202475AQI

12
17
2
5
1
2
10
13
8
9
8
5
1
30
31
31
3
5
8
3
27
31
111
89
40
21
1

Highest AQI recorded in

March

161AQI

Lowest AQI recorded in

July

34AQI

2023128AQI

8
20
2
1
9
16
2
5
18
6
1
5
9
12
4
3
9
9
2
5
4
3
1
4
2
3
22
4
1
18
11
19
65
63
47
20
5

Highest AQI recorded in

April

216AQI

Lowest AQI recorded in

July

36AQI

202284AQI

3
7
22
1
11
12
7
36
13

Highest AQI recorded in

December

99AQI

Lowest AQI recorded in

November

72AQI

Most & Least Polluted Years Over the Last 4 Years

Most Polluted Year Recorded
2023(Avg.)
128AQI
Least Polluted Year Recorded
2024(Avg.)
75AQI

Chiang Khong's annual 2025 AQI (82) shows an average percentage change of -9.2% (improved AQI) compared to previous years: 2022 (84), 2023 (128), 2024 (75).