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+

August Air Quality Analysis

Chiang Khong, Chiang Rai, Thailand

2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2025
56AQI
Lowest AQI recorded on
10th Aug 2026
8AQI

Same Day Analysis (14th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 3rd highest AQI at 33 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 13th Aug - 14th Aug 2026

Chiang Khong, Chiang Rai, Thailand

AQI
Day
Night
.

5 AM13th Aug 2026

6 PM

4 AM14th Aug 2026

Day time
Avg. Highest Time
8AM13th Aug

25AQI

Avg. Lowest Time
3PM13th Aug

17AQI

Night time
Avg. Highest Time
10PM13th Aug

51AQI

Avg. Lowest Time
7PM13th Aug

21AQI

In the last 24 hours,

Chiang Khong's AQI reached its highest point of 51 at 10 PM during the Night, while the lowest point, 17, was recorded at 3 PM during the Day between 13th Aug and 14th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Chiang Khong, Chiang Rai, Thailand

JulAug
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
16th Jul 2026255 AMAQI
16th Jul 2026216 AMAQI
16th Jul 2026157 AMAQI
16th Jul 2026168 AMAQI
16th Jul 2026179 AMAQI
16th Jul 20262110 AMAQI
16th Jul 20261911 AMAQI
16th Jul 20261712 PMAQI
16th Jul 2026291 PMAQI
16th Jul 2026212 PMAQI
16th Jul 2026253 PMAQI
16th Jul 2026214 PMAQI
16th Jul 2026255 PMAQI
16th Jul 2026216 PMAQI
16th Jul 2026187 PMAQI
16th Jul 2026238 PMAQI
16th Jul 2026219 PMAQI
16th Jul 20262010 PMAQI
16th Jul 20261711 PMAQI
17th Jul 20261612 AMAQI
17th Jul 2026161 AMAQI
17th Jul 2026162 AMAQI
17th Jul 2026143 AMAQI
17th Jul 2026144 AMAQI

23°C21/25°C

17th Jul 2026155 AMAQI
17th Jul 2026156 AMAQI
17th Jul 2026177 AMAQI
17th Jul 2026168 AMAQI
17th Jul 2026199 AMAQI
17th Jul 20261610 AMAQI
17th Jul 20262011 AMAQI
17th Jul 20262412 PMAQI
17th Jul 2026221 PMAQI
17th Jul 2026342 PMAQI
17th Jul 2026253 PMAQI
17th Jul 2026214 PMAQI
17th Jul 2026235 PMAQI
17th Jul 2026216 PMAQI
17th Jul 2026257 PMAQI
17th Jul 2026278 PMAQI
17th Jul 2026299 PMAQI
17th Jul 20262510 PMAQI
17th Jul 20262911 PMAQI
18th Jul 20262712 AMAQI
18th Jul 2026251 AMAQI
18th Jul 2026272 AMAQI
18th Jul 2026273 AMAQI
18th Jul 2026254 AMAQI

22°C21/24°C

18th Jul 2026275 AMAQI
18th Jul 2026256 AMAQI
18th Jul 2026277 AMAQI
18th Jul 2026318 AMAQI
18th Jul 2026389 AMAQI
18th Jul 20263310 AMAQI
18th Jul 20263611 AMAQI
18th Jul 20263812 PMAQI
18th Jul 2026421 PMAQI
18th Jul 2026462 PMAQI
18th Jul 2026583 PMAQI
18th Jul 2026524 PMAQI
18th Jul 2026575 PMAQI
18th Jul 2026536 PMAQI
18th Jul 2026547 PMAQI
18th Jul 2026538 PMAQI
18th Jul 2026549 PMAQI
18th Jul 20265310 PMAQI
18th Jul 20265411 PMAQI
19th Jul 20265812 AMAQI
19th Jul 2026821 AMAQI
19th Jul 2026622 AMAQI
19th Jul 2026623 AMAQI
19th Jul 2026594 AMAQI

22°C21/25°C

19th Jul 2026565 AMAQI
19th Jul 2026566 AMAQI
19th Jul 2026597 AMAQI
19th Jul 2026608 AMAQI
19th Jul 2026649 AMAQI
19th Jul 20266410 AMAQI
19th Jul 20265811 AMAQI
19th Jul 20266512 PMAQI
19th Jul 2026621 PMAQI
19th Jul 2026602 PMAQI
19th Jul 2026643 PMAQI
19th Jul 2026644 PMAQI
19th Jul 2026705 PMAQI
19th Jul 2026666 PMAQI
19th Jul 2026637 PMAQI
19th Jul 2026588 PMAQI
19th Jul 2026559 PMAQI
19th Jul 20265410 PMAQI
19th Jul 20265911 PMAQI
20th Jul 20265612 AMAQI
20th Jul 2026561 AMAQI
20th Jul 2026552 AMAQI
20th Jul 2026543 AMAQI
20th Jul 2026544 AMAQI

22°C19/27°C

20th Jul 2026545 AMAQI
20th Jul 2026536 AMAQI
20th Jul 2026527 AMAQI
20th Jul 2026548 AMAQI
20th Jul 2026549 AMAQI
20th Jul 20265410 AMAQI
20th Jul 20265311 AMAQI
20th Jul 20265212 PMAQI
20th Jul 2026521 PMAQI
20th Jul 2026462 PMAQI
20th Jul 2026503 PMAQI
20th Jul 2026504 PMAQI
20th Jul 2026535 PMAQI
20th Jul 2026536 PMAQI
20th Jul 2026487 PMAQI
20th Jul 2026488 PMAQI
20th Jul 2026509 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20265111 PMAQI
21st Jul 20265312 AMAQI
21st Jul 2026521 AMAQI
21st Jul 2026512 AMAQI
21st Jul 2026423 AMAQI
21st Jul 2026404 AMAQI

22°C20/26°C

21st Jul 2026405 AMAQI
21st Jul 2026386 AMAQI
21st Jul 2026387 AMAQI
21st Jul 2026408 AMAQI
21st Jul 2026429 AMAQI
21st Jul 20263611 AMAQI
21st Jul 20262712 PMAQI
21st Jul 2026251 PMAQI
21st Jul 2026232 PMAQI
21st Jul 2026213 PMAQI
21st Jul 2026214 PMAQI
21st Jul 2026765 PMAQI
21st Jul 2026216 PMAQI
21st Jul 2026217 PMAQI
21st Jul 2026178 PMAQI
21st Jul 2026129 PMAQI
21st Jul 20261210 PMAQI
21st Jul 20261011 PMAQI
22nd Jul 20261012 AMAQI
22nd Jul 2026171 AMAQI
22nd Jul 2026172 AMAQI
22nd Jul 2026173 AMAQI
22nd Jul 2026214 AMAQI

23°C20/28°C

22nd Jul 2026255 AMAQI
22nd Jul 2026216 AMAQI
22nd Jul 2026217 AMAQI
22nd Jul 2026338 AMAQI
22nd Jul 2026259 AMAQI
22nd Jul 20261210 AMAQI
22nd Jul 20261211 AMAQI
22nd Jul 2026812 PMAQI
22nd Jul 202681 PMAQI
22nd Jul 202682 PMAQI
22nd Jul 202683 PMAQI
22nd Jul 2026144 PMAQI
22nd Jul 2026215 PMAQI
22nd Jul 2026126 PMAQI
22nd Jul 2026127 PMAQI
22nd Jul 202688 PMAQI
22nd Jul 202689 PMAQI
22nd Jul 20261410 PMAQI
22nd Jul 20261211 PMAQI
23rd Jul 20261912 AMAQI
23rd Jul 2026171 AMAQI
23rd Jul 2026212 AMAQI
23rd Jul 2026193 AMAQI
23rd Jul 2026214 AMAQI

23°C21/27°C

23rd Jul 2026195 AMAQI
23rd Jul 2026236 AMAQI
23rd Jul 2026167 AMAQI
23rd Jul 2026238 AMAQI
23rd Jul 2026179 AMAQI
23rd Jul 20262110 AMAQI
23rd Jul 20261411 AMAQI
23rd Jul 20261912 PMAQI
23rd Jul 2026231 PMAQI
23rd Jul 2026142 PMAQI
23rd Jul 2026173 PMAQI
23rd Jul 2026194 PMAQI
23rd Jul 2026215 PMAQI
23rd Jul 2026366 PMAQI
23rd Jul 2026527 PMAQI
23rd Jul 2026368 PMAQI
23rd Jul 2026339 PMAQI
23rd Jul 20262910 PMAQI
23rd Jul 20261711 PMAQI
24th Jul 20261412 AMAQI
24th Jul 2026171 AMAQI
24th Jul 2026142 AMAQI
24th Jul 2026123 AMAQI
24th Jul 2026124 AMAQI

24°C21/31°C

24th Jul 2026175 AMAQI
24th Jul 2026176 AMAQI
24th Jul 2026177 AMAQI
24th Jul 2026148 AMAQI
24th Jul 2026219 AMAQI
24th Jul 20262110 AMAQI
24th Jul 20261711 AMAQI
24th Jul 20261912 PMAQI
24th Jul 2026121 PMAQI
24th Jul 2026142 PMAQI
24th Jul 2026173 PMAQI
24th Jul 2026214 PMAQI
24th Jul 2026215 PMAQI
24th Jul 2026296 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026179 PMAQI
24th Jul 20261210 PMAQI
24th Jul 20261211 PMAQI
25th Jul 20261212 AMAQI
25th Jul 2026121 AMAQI
25th Jul 2026122 AMAQI
25th Jul 2026123 AMAQI
25th Jul 2026104 AMAQI

24°C21/30°C

25th Jul 2026105 AMAQI
25th Jul 2026146 AMAQI
25th Jul 202687 AMAQI
25th Jul 202688 AMAQI
25th Jul 2026109 AMAQI
25th Jul 20261210 AMAQI
25th Jul 2026811 AMAQI
25th Jul 20261012 PMAQI
25th Jul 202681 PMAQI
25th Jul 202682 PMAQI
25th Jul 2026233 PMAQI
25th Jul 2026124 PMAQI
25th Jul 202685 PMAQI
25th Jul 202686 PMAQI
25th Jul 202687 PMAQI
25th Jul 202688 PMAQI
25th Jul 2026199 PMAQI
25th Jul 20263310 PMAQI
25th Jul 20261711 PMAQI
26th Jul 20261412 AMAQI
26th Jul 202681 AMAQI
26th Jul 2026122 AMAQI
26th Jul 2026123 AMAQI
26th Jul 2026124 AMAQI

24°C22/29°C

26th Jul 2026125 AMAQI
26th Jul 2026216 AMAQI
26th Jul 2026197 AMAQI
26th Jul 202688 AMAQI
26th Jul 202689 AMAQI
26th Jul 2026810 AMAQI
26th Jul 20261211 AMAQI
26th Jul 20261212 PMAQI
26th Jul 2026121 PMAQI
26th Jul 2026202 PMAQI
26th Jul 2026103 PMAQI
26th Jul 2026124 PMAQI
26th Jul 2026165 PMAQI
26th Jul 202686 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026329 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262711 PMAQI
27th Jul 2026812 AMAQI
27th Jul 202681 AMAQI
27th Jul 202682 AMAQI
27th Jul 202683 AMAQI
27th Jul 2026254 AMAQI

24°C22/29°C

27th Jul 2026385 AMAQI
27th Jul 2026276 AMAQI
27th Jul 2026327 AMAQI
27th Jul 2026128 AMAQI
27th Jul 2026109 AMAQI
27th Jul 2026810 AMAQI
27th Jul 2026811 AMAQI
27th Jul 2026812 PMAQI
27th Jul 202681 PMAQI
27th Jul 202682 PMAQI
27th Jul 202683 PMAQI
27th Jul 202684 PMAQI
27th Jul 202685 PMAQI
27th Jul 202686 PMAQI
27th Jul 202687 PMAQI
27th Jul 2026208 PMAQI
27th Jul 2026209 PMAQI
27th Jul 20263210 PMAQI
27th Jul 20261911 PMAQI
28th Jul 20261212 AMAQI
28th Jul 2026231 AMAQI
28th Jul 2026122 AMAQI
28th Jul 2026123 AMAQI
28th Jul 2026254 AMAQI

24°C22/29°C

28th Jul 2026195 AMAQI
28th Jul 2026146 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026219 AMAQI
28th Jul 20262310 AMAQI
28th Jul 20262211 AMAQI
28th Jul 20261912 PMAQI
28th Jul 2026141 PMAQI
28th Jul 2026312 PMAQI
28th Jul 2026293 PMAQI
28th Jul 2026294 PMAQI
28th Jul 2026325 PMAQI
28th Jul 2026296 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026218 PMAQI
28th Jul 2026349 PMAQI
28th Jul 20263810 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20263612 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026322 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026144 AMAQI

24°C22/29°C

29th Jul 2026185 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026317 AMAQI
29th Jul 2026318 AMAQI
29th Jul 2026429 AMAQI
29th Jul 20262910 AMAQI
29th Jul 20264511 AMAQI
29th Jul 20264912 PMAQI
29th Jul 2026421 PMAQI
29th Jul 2026322 PMAQI
29th Jul 2026343 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026215 PMAQI
29th Jul 2026296 PMAQI
29th Jul 2026277 PMAQI
29th Jul 2026498 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20263810 PMAQI
29th Jul 20262311 PMAQI
30th Jul 20263112 AMAQI
30th Jul 2026401 AMAQI
30th Jul 2026272 AMAQI
30th Jul 2026343 AMAQI
30th Jul 2026274 AMAQI

23°C22/26°C

30th Jul 2026295 AMAQI
30th Jul 2026326 AMAQI
30th Jul 2026317 AMAQI
30th Jul 2026278 AMAQI
30th Jul 2026279 AMAQI
30th Jul 20263810 AMAQI
30th Jul 20264211 AMAQI
30th Jul 20262912 PMAQI
30th Jul 2026291 PMAQI
30th Jul 2026292 PMAQI
30th Jul 2026313 PMAQI
30th Jul 2026314 PMAQI
30th Jul 2026315 PMAQI
30th Jul 2026256 PMAQI
30th Jul 2026317 PMAQI
30th Jul 2026258 PMAQI
30th Jul 2026259 PMAQI
30th Jul 20262510 PMAQI
30th Jul 20262311 PMAQI
31st Jul 20262512 AMAQI
31st Jul 2026291 AMAQI
31st Jul 2026272 AMAQI
31st Jul 2026293 AMAQI
31st Jul 2026294 AMAQI

24°C21/28°C

31st Jul 2026345 AMAQI
31st Jul 2026386 AMAQI
31st Jul 2026297 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026449 AMAQI
31st Jul 20261710 AMAQI
31st Jul 2026811 AMAQI
31st Jul 2026612 PMAQI
31st Jul 202661 PMAQI
31st Jul 2026292 PMAQI
31st Jul 2026313 PMAQI
31st Jul 2026344 PMAQI
31st Jul 202685 PMAQI
31st Jul 2026236 PMAQI
31st Jul 2026177 PMAQI
31st Jul 2026178 PMAQI
31st Jul 2026149 PMAQI
31st Jul 20261710 PMAQI
31st Jul 20261711 PMAQI
1st Aug 20261712 AMAQI
1st Aug 2026141 AMAQI
1st Aug 2026142 AMAQI
1st Aug 2026143 AMAQI
1st Aug 2026174 AMAQI

24°C22/30°C

1st Aug 2026145 AMAQI
1st Aug 2026146 AMAQI
1st Aug 2026127 AMAQI
1st Aug 2026148 AMAQI
1st Aug 2026149 AMAQI
1st Aug 20261710 AMAQI
1st Aug 20262111 AMAQI
1st Aug 20262512 PMAQI
1st Aug 2026211 PMAQI
1st Aug 2026212 PMAQI
1st Aug 2026313 PMAQI
1st Aug 2026274 PMAQI
1st Aug 2026295 PMAQI
1st Aug 2026256 PMAQI
1st Aug 2026237 PMAQI
1st Aug 2026218 PMAQI
1st Aug 2026239 PMAQI
1st Aug 20262110 PMAQI
1st Aug 20262511 PMAQI
2nd Aug 20262312 AMAQI
2nd Aug 2026211 AMAQI
2nd Aug 2026212 AMAQI
2nd Aug 2026253 AMAQI
2nd Aug 2026194 AMAQI

24°C22/28°C

2nd Aug 2026215 AMAQI
2nd Aug 2026196 AMAQI
2nd Aug 2026217 AMAQI
2nd Aug 2026218 AMAQI
2nd Aug 2026219 AMAQI
2nd Aug 20261910 AMAQI
2nd Aug 20262111 AMAQI
2nd Aug 20261412 PMAQI
2nd Aug 2026171 PMAQI
2nd Aug 2026192 PMAQI
2nd Aug 2026143 PMAQI
2nd Aug 2026234 PMAQI
2nd Aug 2026275 PMAQI
2nd Aug 2026196 PMAQI
2nd Aug 2026197 PMAQI
2nd Aug 2026178 PMAQI
2nd Aug 2026219 PMAQI
2nd Aug 20262110 PMAQI
2nd Aug 20262311 PMAQI
3rd Aug 20262112 AMAQI
3rd Aug 2026211 AMAQI
3rd Aug 2026212 AMAQI
3rd Aug 2026193 AMAQI
3rd Aug 2026214 AMAQI

24°C22/29°C

3rd Aug 2026195 AMAQI
3rd Aug 2026196 AMAQI
3rd Aug 2026237 AMAQI
3rd Aug 2026198 AMAQI
3rd Aug 2026199 AMAQI
3rd Aug 20261210 AMAQI
3rd Aug 20261211 AMAQI
3rd Aug 20261412 PMAQI
3rd Aug 2026171 PMAQI
3rd Aug 2026122 PMAQI
3rd Aug 2026193 PMAQI
3rd Aug 2026174 PMAQI
3rd Aug 2026145 PMAQI
3rd Aug 2026166 PMAQI
3rd Aug 2026177 PMAQI
3rd Aug 2026218 PMAQI
3rd Aug 2026239 PMAQI
3rd Aug 20262110 PMAQI
3rd Aug 20261411 PMAQI
4th Aug 20261912 AMAQI
4th Aug 2026191 AMAQI
4th Aug 2026172 AMAQI
4th Aug 2026173 AMAQI
4th Aug 2026174 AMAQI

24°C22/27°C

4th Aug 2026175 AMAQI
4th Aug 2026146 AMAQI
4th Aug 2026147 AMAQI
4th Aug 2026148 AMAQI
4th Aug 2026149 AMAQI
4th Aug 20261210 AMAQI
4th Aug 20261211 AMAQI
4th Aug 20261212 PMAQI
4th Aug 2026121 PMAQI
4th Aug 2026122 PMAQI
4th Aug 2026123 PMAQI
4th Aug 2026144 PMAQI
4th Aug 2026175 PMAQI
4th Aug 2026196 PMAQI
4th Aug 2026217 PMAQI
4th Aug 2026178 PMAQI
4th Aug 2026149 PMAQI
4th Aug 20261910 PMAQI
4th Aug 20261711 PMAQI
5th Aug 20261712 AMAQI
5th Aug 2026141 AMAQI
5th Aug 2026142 AMAQI
5th Aug 2026143 AMAQI
5th Aug 2026144 AMAQI

23°C22/26°C

5th Aug 2026125 AMAQI
5th Aug 2026176 AMAQI
5th Aug 2026127 AMAQI
5th Aug 2026128 AMAQI
5th Aug 2026129 AMAQI
5th Aug 20261710 AMAQI
5th Aug 20261211 AMAQI
5th Aug 20261412 PMAQI
5th Aug 2026171 PMAQI
5th Aug 2026142 PMAQI
5th Aug 2026173 PMAQI
5th Aug 2026174 PMAQI
5th Aug 2026215 PMAQI
5th Aug 2026176 PMAQI
5th Aug 2026197 PMAQI
5th Aug 2026178 PMAQI
5th Aug 2026199 PMAQI
5th Aug 20261710 PMAQI
5th Aug 20262311 PMAQI
6th Aug 20261912 AMAQI
6th Aug 2026211 AMAQI
6th Aug 2026192 AMAQI
6th Aug 2026213 AMAQI
6th Aug 2026194 AMAQI

23°C22/25°C

6th Aug 2026215 AMAQI
6th Aug 2026196 AMAQI
6th Aug 2026217 AMAQI
6th Aug 2026218 AMAQI
6th Aug 2026259 AMAQI
6th Aug 20262110 AMAQI
6th Aug 20261711 AMAQI
6th Aug 20262112 PMAQI
6th Aug 2026211 PMAQI
6th Aug 2026192 PMAQI
6th Aug 2026213 PMAQI
6th Aug 2026234 PMAQI
6th Aug 2026215 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026197 PMAQI
6th Aug 2026258 PMAQI
6th Aug 2026199 PMAQI
6th Aug 20261910 PMAQI
6th Aug 20261711 PMAQI
7th Aug 20261912 AMAQI
7th Aug 2026141 AMAQI
7th Aug 2026142 AMAQI
7th Aug 2026143 AMAQI
7th Aug 2026144 AMAQI

24°C22/27°C

7th Aug 2026145 AMAQI
7th Aug 2026126 AMAQI
7th Aug 2026147 AMAQI
7th Aug 2026178 AMAQI
7th Aug 2026149 AMAQI
7th Aug 20261710 AMAQI
7th Aug 20261411 AMAQI
7th Aug 20261412 PMAQI
7th Aug 2026141 PMAQI
7th Aug 2026122 PMAQI
7th Aug 2026143 PMAQI
7th Aug 2026174 PMAQI
7th Aug 2026215 PMAQI
7th Aug 2026196 PMAQI
7th Aug 2026177 PMAQI
7th Aug 2026178 PMAQI
7th Aug 2026199 PMAQI
7th Aug 20262110 PMAQI
7th Aug 20261711 PMAQI
8th Aug 20262112 AMAQI
8th Aug 2026141 AMAQI
8th Aug 2026142 AMAQI
8th Aug 2026173 AMAQI
8th Aug 2026174 AMAQI

23°C22/27°C

8th Aug 2026145 AMAQI
8th Aug 2026146 AMAQI
8th Aug 2026147 AMAQI
8th Aug 2026128 AMAQI
8th Aug 2026129 AMAQI
8th Aug 20261210 AMAQI
8th Aug 20261211 AMAQI
8th Aug 20261212 PMAQI
8th Aug 2026101 PMAQI
8th Aug 2026122 PMAQI
8th Aug 2026123 PMAQI
8th Aug 2026124 PMAQI
8th Aug 2026255 PMAQI
8th Aug 2026196 PMAQI
8th Aug 2026197 PMAQI
8th Aug 2026178 PMAQI
8th Aug 2026199 PMAQI
8th Aug 20261910 PMAQI
8th Aug 20261711 PMAQI
9th Aug 20261412 AMAQI
9th Aug 2026141 AMAQI
9th Aug 2026172 AMAQI
9th Aug 2026173 AMAQI
9th Aug 2026124 AMAQI

23°C22/26°C

9th Aug 2026145 AMAQI
9th Aug 2026126 AMAQI
9th Aug 2026127 AMAQI
9th Aug 2026148 AMAQI
9th Aug 2026149 AMAQI
9th Aug 20261210 AMAQI
9th Aug 20261211 AMAQI
9th Aug 20265612 PMAQI
9th Aug 202641 PMAQI
9th Aug 202662 PMAQI
9th Aug 202643 PMAQI
9th Aug 202644 PMAQI
9th Aug 202645 PMAQI
9th Aug 202666 PMAQI
9th Aug 2026127 PMAQI
9th Aug 2026148 PMAQI
9th Aug 2026219 PMAQI
9th Aug 20261910 PMAQI
9th Aug 20261211 PMAQI
10th Aug 2026412 AMAQI
10th Aug 202641 AMAQI
10th Aug 202642 AMAQI
10th Aug 202663 AMAQI
10th Aug 202684 AMAQI

24°C21/27°C

10th Aug 202645 AMAQI
10th Aug 202646 AMAQI
10th Aug 202647 AMAQI
10th Aug 202668 AMAQI
10th Aug 202649 AMAQI
10th Aug 2026410 AMAQI
10th Aug 2026611 AMAQI
10th Aug 2026812 PMAQI
10th Aug 202681 PMAQI
10th Aug 202662 PMAQI
10th Aug 202643 PMAQI
10th Aug 202684 PMAQI
10th Aug 2026125 PMAQI
10th Aug 2026126 PMAQI
10th Aug 2026197 PMAQI
10th Aug 2026148 PMAQI
10th Aug 2026149 PMAQI
10th Aug 20261410 PMAQI
10th Aug 2026811 PMAQI
11th Aug 2026412 AMAQI
11th Aug 202671 AMAQI
11th Aug 202682 AMAQI
11th Aug 202643 AMAQI
11th Aug 202644 AMAQI

24°C22/30°C

11th Aug 202645 AMAQI
11th Aug 202646 AMAQI
11th Aug 202647 AMAQI
11th Aug 202668 AMAQI
11th Aug 2026129 AMAQI
11th Aug 20263910 AMAQI
11th Aug 20261711 AMAQI
11th Aug 20261412 PMAQI
11th Aug 2026381 PMAQI
11th Aug 2026212 PMAQI
11th Aug 2026253 PMAQI
11th Aug 2026594 PMAQI
11th Aug 2026295 PMAQI
11th Aug 2026336 PMAQI
11th Aug 2026387 PMAQI
11th Aug 2026298 PMAQI
11th Aug 2026219 PMAQI
11th Aug 20262310 PMAQI
11th Aug 20262511 PMAQI
12th Aug 20262112 AMAQI
12th Aug 2026211 AMAQI
12th Aug 2026252 AMAQI
12th Aug 2026213 AMAQI
12th Aug 2026214 AMAQI

24°C22/29°C

12th Aug 2026235 AMAQI
12th Aug 2026216 AMAQI
12th Aug 2026177 AMAQI
12th Aug 2026148 AMAQI
12th Aug 2026129 AMAQI
12th Aug 20261210 AMAQI
12th Aug 20261211 AMAQI
12th Aug 20261212 PMAQI
12th Aug 2026121 PMAQI
12th Aug 2026172 PMAQI
12th Aug 2026123 PMAQI
12th Aug 2026144 PMAQI
12th Aug 2026195 PMAQI
12th Aug 2026216 PMAQI
12th Aug 2026317 PMAQI
12th Aug 2026218 PMAQI
12th Aug 2026299 PMAQI
12th Aug 20262310 PMAQI
12th Aug 20261411 PMAQI
13th Aug 20261212 AMAQI
13th Aug 2026121 AMAQI
13th Aug 2026172 AMAQI
13th Aug 2026173 AMAQI
13th Aug 2026174 AMAQI

23°C21/27°C

13th Aug 2026195 AMAQI
13th Aug 2026196 AMAQI
13th Aug 2026177 AMAQI
13th Aug 2026258 AMAQI
13th Aug 2026259 AMAQI
13th Aug 20261710 AMAQI
13th Aug 20262311 AMAQI
13th Aug 20261912 PMAQI
13th Aug 2026211 PMAQI
13th Aug 2026212 PMAQI
13th Aug 2026173 PMAQI
13th Aug 2026214 PMAQI
13th Aug 2026215 PMAQI
13th Aug 2026216 PMAQI
13th Aug 2026217 PMAQI
13th Aug 2026248 PMAQI
13th Aug 2026299 PMAQI
13th Aug 20265110 PMAQI
13th Aug 20262911 PMAQI
14th Aug 20263612 AMAQI
14th Aug 2026271 AMAQI
14th Aug 2026312 AMAQI
14th Aug 2026293 AMAQI
14th Aug 2026364 AMAQI

25°C21/32°C

14th Aug 2026345 AMAQI
5 AM
14th Aug 2026296 AMAQI
14th Aug 2026317 AMAQI
14th Aug 2026338 AMAQI
14th Aug 2026109 AMAQI
14th Aug 20264610 AMAQI
14th Aug 20264411 AMAQI
11 AM
14th Aug 20264612 PMAQI
14th Aug 2026401 PMAQI
14th Aug 2026292 PMAQI
14th Aug 2026273 PMAQI
14th Aug 2026294 PMAQI
14th Aug 2026275 PMAQI
14th Aug 2026386 PMAQI
6 PM
14th Aug 2026297 PMAQI
14th Aug 2026258 PMAQI
14th Aug 2026299 PMAQI
14th Aug 20264210 PMAQI
14th Aug 20263411 PMAQI
11 PM
4 AM

24°C21/29°C

Day time
Avg. Highest Time
5 PM

26AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
2 PM

21AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 PM to 5 PM (Avg. 26), while the lowest AQI was between 2 PM to 2 PM (Avg. 21).
Night time
Avg. Highest Time
10 PM

27AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM

21AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 27), while the lowest AQI was between 3 AM to 3 AM (Avg. 21).

2026 Days Vs Air Quality

Chiang Khong, Chiang Rai, Thailand

2026

34%

76

38%

87

16%

37

9%

21

2%

5

Total number of days with different AQI categories in last 226 days in 2026 (139 days remaining)

Good
76 Days
Moderate
87 Days
Poor
37 Days
Unhealthy
21 Days
Severe
5 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 34%

Health Risk Level:

High

In 2026, 34% of 226 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

Chiang Khong, Chiang Rai, Thailand

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
93AQI (US)
2nd January 2026
77AQI (US)
3rd January 2026
76AQI (US)
4th January 2026
63AQI (US)
5th January 2026
62AQI (US)
6th January 2026
59AQI (US)
7th January 2026
55AQI (US)
8th January 2026
49AQI (US)
9th January 2026
65AQI (US)
10th January 2026
68AQI (US)
11th January 2026
72AQI (US)
12th January 2026
81AQI (US)
13th January 2026
84AQI (US)
14th January 2026
83AQI (US)
15th January 2026
87AQI (US)
16th January 2026
84AQI (US)
17th January 2026
76AQI (US)
18th January 2026
77AQI (US)
19th January 2026
76AQI (US)
20th January 2026
77AQI (US)
21st January 2026
73AQI (US)
22nd January 2026
74AQI (US)
23rd January 2026
88AQI (US)
24th January 2026
95AQI (US)
25th January 2026
99AQI (US)
26th January 2026
96AQI (US)
27th January 2026
105AQI (US)
28th January 2026
108AQI (US)
29th January 2026
110AQI (US)
30th January 2026
104AQI (US)
31st January 2026
112AQI (US)
1st February 2026
113AQI (US)
2nd February 2026
107AQI (US)
3rd February 2026
110AQI (US)
4th February 2026
95AQI (US)
5th February 2026
98AQI (US)
6th February 2026
109AQI (US)
7th February 2026
108AQI (US)
8th February 2026
101AQI (US)
9th February 2026
95AQI (US)
10th February 2026
82AQI (US)
11th February 2026
87AQI (US)
12th February 2026
88AQI (US)
13th February 2026
83AQI (US)
14th February 2026
84AQI (US)
15th February 2026
97AQI (US)
16th February 2026
88AQI (US)
17th February 2026
81AQI (US)
18th February 2026
107AQI (US)
19th February 2026
96AQI (US)
20th February 2026
61AQI (US)
21st February 2026
95AQI (US)
22nd February 2026
114AQI (US)
23rd February 2026
111AQI (US)
24th February 2026
118AQI (US)
25th February 2026
67AQI (US)
26th February 2026
24AQI (US)
27th February 2026
58AQI (US)
28th February 2026
91AQI (US)
1st March 2026
86AQI (US)
2nd March 2026
91AQI (US)
3rd March 2026
95AQI (US)
4th March 2026
115AQI (US)
5th March 2026
141AQI (US)
6th March 2026
112AQI (US)
7th March 2026
107AQI (US)
8th March 2026
123AQI (US)
9th March 2026
131AQI (US)
10th March 2026
85AQI (US)
11th March 2026
87AQI (US)
12th March 2026
110AQI (US)
13th March 2026
82AQI (US)
14th March 2026
101AQI (US)
15th March 2026
103AQI (US)
16th March 2026
98AQI (US)
17th March 2026
97AQI (US)
18th March 2026
94AQI (US)
19th March 2026
127AQI (US)
20th March 2026
123AQI (US)
21st March 2026
139AQI (US)
22nd March 2026
109AQI (US)
23rd March 2026
90AQI (US)
24th March 2026
122AQI (US)
25th March 2026
144AQI (US)
26th March 2026
158AQI (US)
27th March 2026
170AQI (US)
28th March 2026
183AQI (US)
29th March 2026
180AQI (US)
30th March 2026
178AQI (US)
31st March 2026
181AQI (US)
1st April 2026
202AQI (US)
2nd April 2026
224AQI (US)
3rd April 2026
216AQI (US)
4th April 2026
220AQI (US)
5th April 2026
222AQI (US)
6th April 2026
150AQI (US)
7th April 2026
151AQI (US)
8th April 2026
150AQI (US)
9th April 2026
154AQI (US)
10th April 2026
161AQI (US)
11th April 2026
163AQI (US)
12th April 2026
159AQI (US)
13th April 2026
171AQI (US)
14th April 2026
197AQI (US)
15th April 2026
187AQI (US)
16th April 2026
193AQI (US)
17th April 2026
185AQI (US)
18th April 2026
186AQI (US)
19th April 2026
179AQI (US)
20th April 2026
151AQI (US)
21st April 2026
168AQI (US)
22nd April 2026
160AQI (US)
23rd April 2026
127AQI (US)
24th April 2026
120AQI (US)
25th April 2026
127AQI (US)
26th April 2026
103AQI (US)
27th April 2026
106AQI (US)
28th April 2026
66AQI (US)
29th April 2026
75AQI (US)
30th April 2026
94AQI (US)
1st May 2026
73AQI (US)
2nd May 2026
98AQI (US)
3rd May 2026
81AQI (US)
4th May 2026
95AQI (US)
5th May 2026
66AQI (US)
6th May 2026
89AQI (US)
7th May 2026
95AQI (US)
8th May 2026
47AQI (US)
9th May 2026
59AQI (US)
10th May 2026
55AQI (US)
11th May 2026
34AQI (US)
12th May 2026
11AQI (US)
13th May 2026
12AQI (US)
14th May 2026
26AQI (US)
15th May 2026
45AQI (US)
16th May 2026
95AQI (US)
17th May 2026
92AQI (US)
18th May 2026
78AQI (US)
19th May 2026
70AQI (US)
20th May 2026
80AQI (US)
21st May 2026
83AQI (US)
22nd May 2026
82AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
70AQI (US)
25th May 2026
72AQI (US)
26th May 2026
50AQI (US)
27th May 2026
38AQI (US)
28th May 2026
77AQI (US)
29th May 2026
57AQI (US)
30th May 2026
47AQI (US)
31st May 2026
48AQI (US)
1st June 2026
47AQI (US)
2nd June 2026
66AQI (US)
3rd June 2026
75AQI (US)
4th June 2026
79AQI (US)
5th June 2026
58AQI (US)
6th June 2026
54AQI (US)
7th June 2026
62AQI (US)
8th June 2026
27AQI (US)
9th June 2026
16AQI (US)
10th June 2026
19AQI (US)
11th June 2026
12AQI (US)
12th June 2026
20AQI (US)
13th June 2026
20AQI (US)
14th June 2026
19AQI (US)
15th June 2026
12AQI (US)
16th June 2026
18AQI (US)
17th June 2026
15AQI (US)
18th June 2026
13AQI (US)
19th June 2026
16AQI (US)
20th June 2026
20AQI (US)
21st June 2026
39AQI (US)
22nd June 2026
73AQI (US)
23rd June 2026
64AQI (US)
24th June 2026
48AQI (US)
25th June 2026
52AQI (US)
26th June 2026
39AQI (US)
27th June 2026
44AQI (US)
28th June 2026
35AQI (US)
29th June 2026
31AQI (US)
30th June 2026
16AQI (US)
1st July 2026
19AQI (US)
2nd July 2026
24AQI (US)
3rd July 2026
10AQI (US)
4th July 2026
13AQI (US)
5th July 2026
10AQI (US)
6th July 2026
17AQI (US)
7th July 2026
28AQI (US)
8th July 2026
41AQI (US)
9th July 2026
10AQI (US)
10th July 2026
21AQI (US)
11th July 2026
24AQI (US)
12th July 2026
17AQI (US)
13th July 2026
12AQI (US)
14th July 2026
22AQI (US)
15th July 2026
24AQI (US)
16th July 2026
22AQI (US)
17th July 2026
21AQI (US)
18th July 2026
40AQI (US)
19th July 2026
62AQI (US)
20th July 2026
52AQI (US)
21st July 2026
33AQI (US)
22nd July 2026
15AQI (US)
23rd July 2026
23AQI (US)
24th July 2026
17AQI (US)
25th July 2026
12AQI (US)
26th July 2026
16AQI (US)
27th July 2026
14AQI (US)
28th July 2026
23AQI (US)
29th July 2026
31AQI (US)
30th July 2026
30AQI (US)
31st July 2026
23AQI (US)
1st August 2026
20AQI (US)
2nd August 2026
20AQI (US)
3rd August 2026
18AQI (US)
4th August 2026
16AQI (US)
5th August 2026
16AQI (US)
6th August 2026
21AQI (US)
7th August 2026
16AQI (US)
8th August 2026
15AQI (US)
9th August 2026
14AQI (US)
10th August 2026
8AQI (US)
11th August 2026
20AQI (US)
12th August 2026
19AQI (US)
13th August 2026
21AQI (US)
14th August 2026
33AQI (US)
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

82AQI (US)

92AQI (US)

121AQI (US)

159AQI (US)

64AQI (US)

37AQI (US)

23AQI (US)

18AQI (US)

No. of days

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

202678AQI (US)

1
25
5
1
17
10
10
15
6
3
7
15
5
10
21
21
9
29
2
14
76
87
37
21
5

Highest AQI (US) recorded in

April

159AQI (US)

Lowest AQI (US) recorded in

August

18AQI (US)

202572AQI (US)

11
20
8
20
6
17
8
18
12
14
16
1
18
12
28
3
19
12
24
6
2
29
5
25
31
110
177
70
8

Highest AQI (US) recorded in

March

122AQI (US)

Lowest AQI (US) recorded in

September

40AQI (US)

202475AQI (US)

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 (US) recorded in

March

161AQI (US)

Lowest AQI (US) recorded in

July

34AQI (US)

2023128AQI (US)

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 (US) recorded in

April

216AQI (US)

Lowest AQI (US) recorded in

July

36AQI (US)

202284AQI (US)

3
7
22
1
11
12
7
36
13

Highest AQI (US) recorded in

December

99AQI (US)

Lowest AQI (US) recorded in

November

72AQI (US)

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2023(Avg.)
128AQI (US)
Least Polluted Year Recorded
2025(Avg.)
72AQI (US)

Chiang Khong's annual 2026 AQI (US) (78) shows an average percentage change of -8.4% (improved AQI (US)) compared to previous years: 2022 (84), 2023 (128), 2024 (75), 2025 (72).