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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Vientiane, Chanthabuly District, Laos 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+

October Air Quality Analysis

Vientiane, Chanthabuly District, Laos

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
30th Oct 2022
158AQI
Lowest AQI recorded on
20th Oct 2024
21AQI

Same Day Analysis (2nd October):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 63 of Moderate air quality, showing improvement over 2025 and 2023 on the same day.

Day & Night AQI Trend: 1st Oct - 2nd Oct 2026

Vientiane, Chanthabuly District, Laos

AQI
Day
Night
.

5 AM1st Oct 2026

6 PM

4 AM2nd Oct 2026

Day time
Avg. Highest Time
6AM1st Oct

62AQI

Avg. Lowest Time
3PM1st Oct

38AQI

Night time
Avg. Highest Time
1AM2nd Oct

84AQI

Avg. Lowest Time
6PM1st Oct

48AQI

In the last 24 hours,

Vientiane's AQI reached its highest point of 84 at 1 AM during the Night, while the lowest point, 38, was recorded at 3 PM during the Day between 1st Oct and 2nd Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Vientiane, Chanthabuly District, Laos

SepOct
03rd - 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 - 01st01st - 02nd02nd
Day
Night
3rd Sep 2026365 AMAQI
3rd Sep 2026426 AMAQI
3rd Sep 2026337 AMAQI
3rd Sep 2026518 AMAQI
3rd Sep 2026449 AMAQI
3rd Sep 20263810 AMAQI
3rd Sep 20265311 AMAQI
3rd Sep 20266012 PMAQI
3rd Sep 2026581 PMAQI
3rd Sep 2026642 PMAQI
3rd Sep 2026523 PMAQI
3rd Sep 2026444 PMAQI
3rd Sep 2026425 PMAQI
3rd Sep 2026446 PMAQI
3rd Sep 2026467 PMAQI
3rd Sep 2026388 PMAQI
3rd Sep 2026369 PMAQI
3rd Sep 20263810 PMAQI
3rd Sep 20263611 PMAQI
4th Sep 20263612 AMAQI
4th Sep 2026401 AMAQI
4th Sep 2026402 AMAQI
4th Sep 2026423 AMAQI
4th Sep 2026484 AMAQI

27°C24/32°C

4th Sep 2026665 AMAQI
4th Sep 2026696 AMAQI
4th Sep 2026687 AMAQI
4th Sep 2026698 AMAQI
4th Sep 2026679 AMAQI
4th Sep 20266210 AMAQI
4th Sep 20266511 AMAQI
4th Sep 20265612 PMAQI
4th Sep 2026541 PMAQI
4th Sep 2026572 PMAQI
4th Sep 2026873 PMAQI
4th Sep 2026874 PMAQI
4th Sep 2026535 PMAQI
4th Sep 2026496 PMAQI
4th Sep 2026407 PMAQI
4th Sep 2026538 PMAQI
4th Sep 2026369 PMAQI
4th Sep 20262910 PMAQI
4th Sep 20263311 PMAQI
5th Sep 20264412 AMAQI
5th Sep 2026441 AMAQI
5th Sep 2026492 AMAQI
5th Sep 2026383 AMAQI
5th Sep 2026404 AMAQI

27°C24/31°C

5th Sep 2026405 AMAQI
5th Sep 2026426 AMAQI
5th Sep 2026567 AMAQI
5th Sep 2026558 AMAQI
5th Sep 2026519 AMAQI
5th Sep 20265110 AMAQI
5th Sep 20265011 AMAQI
5th Sep 20265012 PMAQI
5th Sep 2026531 PMAQI
5th Sep 2026542 PMAQI
5th Sep 2026543 PMAQI
5th Sep 2026544 PMAQI
5th Sep 2026555 PMAQI
5th Sep 2026536 PMAQI
5th Sep 2026547 PMAQI
5th Sep 2026568 PMAQI
5th Sep 2026629 PMAQI
5th Sep 20265910 PMAQI
5th Sep 20266511 PMAQI
6th Sep 20266512 AMAQI
6th Sep 2026681 AMAQI
6th Sep 2026402 AMAQI
6th Sep 2026313 AMAQI
6th Sep 2026334 AMAQI

26°C23/30°C

6th Sep 2026215 AMAQI
6th Sep 2026216 AMAQI
6th Sep 2026217 AMAQI
6th Sep 2026258 AMAQI
6th Sep 2026219 AMAQI
6th Sep 20262710 AMAQI
6th Sep 20262311 AMAQI
6th Sep 20262912 PMAQI
6th Sep 2026331 PMAQI
6th Sep 2026312 PMAQI
6th Sep 2026383 PMAQI
6th Sep 2026404 PMAQI
6th Sep 2026405 PMAQI
6th Sep 2026446 PMAQI
6th Sep 2026487 PMAQI
6th Sep 2026518 PMAQI
6th Sep 2026559 PMAQI
6th Sep 20265010 PMAQI
6th Sep 20263311 PMAQI
7th Sep 20262512 AMAQI
7th Sep 2026211 AMAQI
7th Sep 2026192 AMAQI
7th Sep 2026293 AMAQI
7th Sep 2026214 AMAQI

25°C23/30°C

7th Sep 2026235 AMAQI
7th Sep 2026216 AMAQI
7th Sep 2026217 AMAQI
7th Sep 2026198 AMAQI
7th Sep 2026219 AMAQI
7th Sep 20261710 AMAQI
7th Sep 20262111 AMAQI
7th Sep 20262112 PMAQI
7th Sep 2026231 PMAQI
7th Sep 2026212 PMAQI
7th Sep 2026293 PMAQI
7th Sep 2026234 PMAQI
7th Sep 2026215 PMAQI
7th Sep 2026236 PMAQI
7th Sep 2026237 PMAQI
7th Sep 2026298 PMAQI
7th Sep 2026299 PMAQI
7th Sep 20262910 PMAQI
7th Sep 20262711 PMAQI
8th Sep 20262512 AMAQI
8th Sep 2026511 AMAQI
8th Sep 2026562 AMAQI
8th Sep 2026543 AMAQI
8th Sep 2026534 AMAQI

25°C23/29°C

8th Sep 2026505 AMAQI
8th Sep 2026506 AMAQI
8th Sep 2026537 AMAQI
8th Sep 2026648 AMAQI
8th Sep 2026669 AMAQI
8th Sep 20266510 AMAQI
8th Sep 20264211 AMAQI
8th Sep 20262312 PMAQI
8th Sep 2026311 PMAQI
8th Sep 2026312 PMAQI
8th Sep 2026383 PMAQI
8th Sep 2026484 PMAQI
8th Sep 2026405 PMAQI
8th Sep 2026606 PMAQI
8th Sep 2026647 PMAQI
8th Sep 2026668 PMAQI
8th Sep 2026729 PMAQI
8th Sep 20266210 PMAQI
8th Sep 20266411 PMAQI
9th Sep 20266612 AMAQI
9th Sep 2026561 AMAQI
9th Sep 2026492 AMAQI
9th Sep 2026363 AMAQI
9th Sep 2026554 AMAQI

25°C23/29°C

9th Sep 2026585 AMAQI
9th Sep 2026426 AMAQI
9th Sep 2026657 AMAQI
9th Sep 2026628 AMAQI
9th Sep 2026609 AMAQI
9th Sep 20264410 AMAQI
9th Sep 20264411 AMAQI
9th Sep 20264912 PMAQI
9th Sep 2026441 PMAQI
9th Sep 2026402 PMAQI
9th Sep 2026293 PMAQI
9th Sep 2026274 PMAQI
9th Sep 2026495 PMAQI
9th Sep 2026426 PMAQI
9th Sep 2026537 PMAQI
9th Sep 2026608 PMAQI
9th Sep 2026389 PMAQI
9th Sep 20262910 PMAQI
9th Sep 20264011 PMAQI
10th Sep 20265412 AMAQI
10th Sep 2026461 AMAQI
10th Sep 2026382 AMAQI
10th Sep 2026293 AMAQI
10th Sep 2026274 AMAQI

26°C24/29°C

10th Sep 2026255 AMAQI
10th Sep 2026216 AMAQI
10th Sep 2026257 AMAQI
10th Sep 2026258 AMAQI
10th Sep 2026259 AMAQI
10th Sep 20262110 AMAQI
10th Sep 20262911 AMAQI
10th Sep 20264012 PMAQI
10th Sep 2026521 PMAQI
10th Sep 2026572 PMAQI
10th Sep 2026573 PMAQI
10th Sep 2026624 PMAQI
10th Sep 2026555 PMAQI
10th Sep 2026516 PMAQI
10th Sep 2026537 PMAQI
10th Sep 2026538 PMAQI
10th Sep 2026509 PMAQI
10th Sep 20264610 PMAQI
10th Sep 20264911 PMAQI
11th Sep 20265612 AMAQI
11th Sep 2026551 AMAQI
11th Sep 2026522 AMAQI
11th Sep 2026543 AMAQI
11th Sep 2026554 AMAQI

26°C23/30°C

11th Sep 2026575 AMAQI
11th Sep 2026566 AMAQI
11th Sep 2026637 AMAQI
11th Sep 2026588 AMAQI
11th Sep 2026579 AMAQI
11th Sep 20265310 AMAQI
11th Sep 20265511 AMAQI
11th Sep 20265112 PMAQI
11th Sep 2026461 PMAQI
11th Sep 2026422 PMAQI
11th Sep 2026463 PMAQI
11th Sep 2026404 PMAQI
11th Sep 2026485 PMAQI
11th Sep 2026526 PMAQI
11th Sep 2026537 PMAQI
11th Sep 2026668 PMAQI
11th Sep 2026599 PMAQI
11th Sep 20266910 PMAQI
11th Sep 20267111 PMAQI
12th Sep 20267012 AMAQI
12th Sep 2026641 AMAQI
12th Sep 2026672 AMAQI
12th Sep 2026693 AMAQI
12th Sep 2026714 AMAQI

26°C22/30°C

12th Sep 2026665 AMAQI
12th Sep 2026726 AMAQI
12th Sep 2026717 AMAQI
12th Sep 2026768 AMAQI
12th Sep 2026669 AMAQI
12th Sep 20266510 AMAQI
12th Sep 20266511 AMAQI
12th Sep 20265812 PMAQI
12th Sep 2026571 PMAQI
12th Sep 2026542 PMAQI
12th Sep 2026543 PMAQI
12th Sep 2026544 PMAQI
12th Sep 2026545 PMAQI
12th Sep 2026526 PMAQI
12th Sep 2026537 PMAQI
12th Sep 2026628 PMAQI
12th Sep 2026659 PMAQI
12th Sep 20266010 PMAQI
12th Sep 20266611 PMAQI
13th Sep 20266512 AMAQI
13th Sep 2026661 AMAQI
13th Sep 2026672 AMAQI
13th Sep 2026694 AMAQI

26°C22/31°C

13th Sep 2026685 AMAQI
13th Sep 2026696 AMAQI
13th Sep 2026727 AMAQI
13th Sep 2026768 AMAQI
13th Sep 2026769 AMAQI
13th Sep 20266910 AMAQI
13th Sep 20266411 AMAQI
13th Sep 20265812 PMAQI
13th Sep 2026531 PMAQI
13th Sep 2026532 PMAQI
13th Sep 2026423 PMAQI
13th Sep 2026484 PMAQI
13th Sep 2026545 PMAQI
13th Sep 2026566 PMAQI
13th Sep 2026627 PMAQI
13th Sep 2026788 PMAQI
13th Sep 2026789 PMAQI
13th Sep 20267610 PMAQI
13th Sep 20266911 PMAQI
14th Sep 20266812 AMAQI
14th Sep 2026661 AMAQI
14th Sep 2026692 AMAQI
14th Sep 2026533 AMAQI
14th Sep 2026544 AMAQI

25°C22/31°C

14th Sep 2026555 AMAQI
14th Sep 2026586 AMAQI
14th Sep 2026607 AMAQI
14th Sep 2026548 AMAQI
14th Sep 2026599 AMAQI
14th Sep 20265710 AMAQI
14th Sep 20265511 AMAQI
14th Sep 20265512 PMAQI
14th Sep 2026501 PMAQI
14th Sep 2026522 PMAQI
14th Sep 2026503 PMAQI
14th Sep 2026464 PMAQI
14th Sep 2026525 PMAQI
14th Sep 2026466 PMAQI
14th Sep 2026447 PMAQI
14th Sep 2026408 PMAQI
14th Sep 2026259 PMAQI
14th Sep 20263810 PMAQI
14th Sep 20262511 PMAQI
15th Sep 20262512 AMAQI
15th Sep 2026291 AMAQI
15th Sep 2026292 AMAQI
15th Sep 2026303 AMAQI
15th Sep 2026274 AMAQI

22°C21/24°C

15th Sep 2026335 AMAQI
15th Sep 2026306 AMAQI
15th Sep 2026237 AMAQI
15th Sep 2026278 AMAQI
15th Sep 2026239 AMAQI
15th Sep 20262710 AMAQI
15th Sep 20262311 AMAQI
15th Sep 20263012 PMAQI
15th Sep 2026211 PMAQI
15th Sep 2026212 PMAQI
15th Sep 2026233 PMAQI
15th Sep 2026234 PMAQI
15th Sep 2026215 PMAQI
15th Sep 2026256 PMAQI
15th Sep 2026257 PMAQI
15th Sep 2026238 PMAQI
15th Sep 2026259 PMAQI
15th Sep 20262510 PMAQI
15th Sep 20262511 PMAQI
16th Sep 20262312 AMAQI
16th Sep 2026211 AMAQI
16th Sep 2026302 AMAQI
16th Sep 2026233 AMAQI
16th Sep 2026214 AMAQI

22°C21/25°C

16th Sep 2026295 AMAQI
16th Sep 2026236 AMAQI
16th Sep 2026277 AMAQI
16th Sep 2026218 AMAQI
16th Sep 2026299 AMAQI
16th Sep 20262110 AMAQI
16th Sep 20262311 AMAQI
16th Sep 20262112 PMAQI
16th Sep 2026211 PMAQI
16th Sep 2026232 PMAQI
16th Sep 2026233 PMAQI
16th Sep 2026234 PMAQI
16th Sep 2026405 PMAQI
16th Sep 2026646 PMAQI
16th Sep 2026647 PMAQI
16th Sep 2026648 PMAQI
16th Sep 2026649 PMAQI
16th Sep 20266210 PMAQI
16th Sep 20266211 PMAQI
17th Sep 20265812 AMAQI
17th Sep 2026641 AMAQI
17th Sep 2026582 AMAQI
17th Sep 2026483 AMAQI
17th Sep 2026294 AMAQI

23°C22/24°C

17th Sep 2026305 AMAQI
17th Sep 2026496 AMAQI
17th Sep 2026497 AMAQI
17th Sep 2026748 AMAQI
17th Sep 2026679 AMAQI
17th Sep 20266210 AMAQI
17th Sep 20266011 AMAQI
17th Sep 20266412 PMAQI
17th Sep 2026301 PMAQI
17th Sep 2026312 PMAQI
17th Sep 2026333 PMAQI
17th Sep 2026294 PMAQI
17th Sep 2026305 PMAQI
17th Sep 2026636 PMAQI
17th Sep 2026607 PMAQI
17th Sep 2026698 PMAQI
17th Sep 2026769 PMAQI
17th Sep 20266210 PMAQI
17th Sep 20265511 PMAQI
18th Sep 20265512 AMAQI
18th Sep 2026491 AMAQI
18th Sep 2026512 AMAQI
18th Sep 2026443 AMAQI
18th Sep 2026404 AMAQI

23°C22/25°C

18th Sep 2026565 AMAQI
18th Sep 2026536 AMAQI
18th Sep 2026567 AMAQI
18th Sep 2026648 AMAQI
18th Sep 2026699 AMAQI
18th Sep 20267010 AMAQI
18th Sep 20267411 AMAQI
18th Sep 20266812 PMAQI
18th Sep 2026641 PMAQI
18th Sep 2026602 PMAQI
18th Sep 2026683 PMAQI
18th Sep 2026284 PMAQI
18th Sep 2026305 PMAQI
18th Sep 2026366 PMAQI
18th Sep 2026497 PMAQI
18th Sep 2026788 PMAQI
18th Sep 2026469 PMAQI
18th Sep 20262910 PMAQI
18th Sep 20262511 PMAQI
19th Sep 20263112 AMAQI
19th Sep 2026271 AMAQI
19th Sep 2026252 AMAQI
19th Sep 2026213 AMAQI
19th Sep 2026214 AMAQI

24°C22/27°C

19th Sep 2026385 AMAQI
19th Sep 2026256 AMAQI
19th Sep 2026587 AMAQI
19th Sep 2026318 AMAQI
19th Sep 2026269 AMAQI
19th Sep 20262610 AMAQI
19th Sep 20263911 AMAQI
19th Sep 20263812 PMAQI
19th Sep 2026341 PMAQI
19th Sep 2026272 PMAQI
19th Sep 2026303 PMAQI
19th Sep 2026584 PMAQI
19th Sep 2026585 PMAQI
19th Sep 2026796 PMAQI
19th Sep 2026407 PMAQI
19th Sep 2026448 PMAQI
19th Sep 2026529 PMAQI
19th Sep 20265410 PMAQI
19th Sep 20265211 PMAQI
20th Sep 20265012 AMAQI
20th Sep 2026441 AMAQI
20th Sep 2026422 AMAQI
20th Sep 2026423 AMAQI
20th Sep 2026314 AMAQI

26°C23/31°C

20th Sep 2026365 AMAQI
20th Sep 2026486 AMAQI
20th Sep 2026507 AMAQI
20th Sep 2026518 AMAQI
20th Sep 2026389 AMAQI
20th Sep 20262910 AMAQI
20th Sep 20262311 AMAQI
20th Sep 20262312 PMAQI
20th Sep 2026171 PMAQI
20th Sep 2026172 PMAQI
20th Sep 2026173 PMAQI
20th Sep 2026174 PMAQI
20th Sep 2026175 PMAQI
20th Sep 2026216 PMAQI
20th Sep 2026277 PMAQI
20th Sep 2026368 PMAQI
20th Sep 2026469 PMAQI
20th Sep 20264010 PMAQI
20th Sep 20264011 PMAQI
21st Sep 20262512 AMAQI
21st Sep 2026231 AMAQI
21st Sep 2026212 AMAQI
21st Sep 2026193 AMAQI
21st Sep 2026174 AMAQI

27°C23/31°C

21st Sep 2026215 AMAQI
21st Sep 2026326 AMAQI
21st Sep 2026317 AMAQI
21st Sep 2026288 AMAQI
21st Sep 2026339 AMAQI
21st Sep 20262110 AMAQI
21st Sep 20262311 AMAQI
21st Sep 20262712 PMAQI
21st Sep 2026331 PMAQI
21st Sep 2026362 PMAQI
21st Sep 2026363 PMAQI
21st Sep 2026424 PMAQI
21st Sep 2026365 PMAQI
21st Sep 2026446 PMAQI
21st Sep 2026607 PMAQI
21st Sep 2026568 PMAQI
21st Sep 2026729 PMAQI
21st Sep 20267110 PMAQI
21st Sep 20267611 PMAQI
22nd Sep 20267412 AMAQI
22nd Sep 2026621 AMAQI
22nd Sep 2026662 AMAQI
22nd Sep 2026593 AMAQI
22nd Sep 2026604 AMAQI

27°C24/31°C

22nd Sep 2026705 AMAQI
22nd Sep 2026676 AMAQI
22nd Sep 2026687 AMAQI
22nd Sep 2026668 AMAQI
22nd Sep 2026639 AMAQI
22nd Sep 20266010 AMAQI
22nd Sep 20265011 AMAQI
22nd Sep 20264612 PMAQI
22nd Sep 2026461 PMAQI
22nd Sep 2026382 PMAQI
22nd Sep 2026423 PMAQI
22nd Sep 2026404 PMAQI
22nd Sep 2026405 PMAQI
22nd Sep 2026406 PMAQI
22nd Sep 2026487 PMAQI
22nd Sep 2026688 PMAQI
22nd Sep 2026759 PMAQI
22nd Sep 20267410 PMAQI
22nd Sep 20267211 PMAQI
23rd Sep 20267012 AMAQI
23rd Sep 2026691 AMAQI
23rd Sep 2026852 AMAQI
23rd Sep 2026673 AMAQI
23rd Sep 2026604 AMAQI

27°C23/31°C

23rd Sep 2026565 AMAQI
23rd Sep 2026676 AMAQI
23rd Sep 2026717 AMAQI
23rd Sep 2026598 AMAQI
23rd Sep 2026579 AMAQI
23rd Sep 20265710 AMAQI
23rd Sep 20265911 AMAQI
23rd Sep 20266012 PMAQI
23rd Sep 2026591 PMAQI
23rd Sep 2026592 PMAQI
23rd Sep 2026573 PMAQI
23rd Sep 2026574 PMAQI
23rd Sep 2026545 PMAQI
23rd Sep 2026566 PMAQI
23rd Sep 2026607 PMAQI
23rd Sep 2026808 PMAQI
23rd Sep 2026789 PMAQI
23rd Sep 20267410 PMAQI
23rd Sep 20266711 PMAQI
24th Sep 20266412 AMAQI
24th Sep 2026571 AMAQI
24th Sep 2026492 AMAQI
24th Sep 2026403 AMAQI
24th Sep 2026464 AMAQI

27°C23/31°C

24th Sep 2026465 AMAQI
24th Sep 2026406 AMAQI
24th Sep 2026407 AMAQI
24th Sep 2026488 AMAQI
24th Sep 2026649 AMAQI
24th Sep 20267010 AMAQI
24th Sep 20265711 AMAQI
24th Sep 20265612 PMAQI
24th Sep 2026541 PMAQI
24th Sep 2026502 PMAQI
24th Sep 2026423 PMAQI
24th Sep 2026424 PMAQI
24th Sep 2026405 PMAQI
24th Sep 2026386 PMAQI
24th Sep 2026407 PMAQI
24th Sep 2026468 PMAQI
24th Sep 2026469 PMAQI
24th Sep 20263610 PMAQI
24th Sep 20263811 PMAQI
25th Sep 20263612 AMAQI
25th Sep 2026311 AMAQI
25th Sep 2026312 AMAQI
25th Sep 2026293 AMAQI
25th Sep 2026324 AMAQI

26°C23/30°C

25th Sep 2026325 AMAQI
25th Sep 2026276 AMAQI
25th Sep 2026257 AMAQI
25th Sep 2026278 AMAQI
25th Sep 2026279 AMAQI
25th Sep 20262710 AMAQI
25th Sep 20262511 AMAQI
25th Sep 20262512 PMAQI
25th Sep 2026211 PMAQI
25th Sep 2026212 PMAQI
25th Sep 2026213 PMAQI
25th Sep 2026254 PMAQI
25th Sep 2026255 PMAQI
25th Sep 2026256 PMAQI
25th Sep 2026277 PMAQI
25th Sep 2026298 PMAQI
25th Sep 2026279 PMAQI
25th Sep 20262510 PMAQI
25th Sep 20262111 PMAQI
26th Sep 20262112 AMAQI
26th Sep 2026191 AMAQI
26th Sep 2026192 AMAQI
26th Sep 2026193 AMAQI
26th Sep 2026254 AMAQI

25°C23/29°C

26th Sep 2026255 AMAQI
26th Sep 2026216 AMAQI
26th Sep 2026257 AMAQI
26th Sep 2026258 AMAQI
26th Sep 2026299 AMAQI
26th Sep 20261710 AMAQI
26th Sep 20261911 AMAQI
26th Sep 20261712 PMAQI
26th Sep 2026191 PMAQI
26th Sep 2026172 PMAQI
26th Sep 2026173 PMAQI
26th Sep 2026144 PMAQI
26th Sep 2026175 PMAQI
26th Sep 2026166 PMAQI
26th Sep 2026257 PMAQI
26th Sep 2026218 PMAQI
26th Sep 2026199 PMAQI
26th Sep 20267410 PMAQI
26th Sep 20265411 PMAQI
27th Sep 20265812 AMAQI
27th Sep 2026561 AMAQI
27th Sep 2026482 AMAQI
27th Sep 2026333 AMAQI
27th Sep 2026384 AMAQI

25°C23/27°C

27th Sep 2026445 AMAQI
27th Sep 2026506 AMAQI
27th Sep 2026627 AMAQI
27th Sep 2026788 AMAQI
27th Sep 2026719 AMAQI
27th Sep 20267110 AMAQI
27th Sep 20266011 AMAQI
27th Sep 20266012 PMAQI
27th Sep 2026461 PMAQI
27th Sep 2026442 PMAQI
27th Sep 2026443 PMAQI
27th Sep 2026564 PMAQI
27th Sep 2026545 PMAQI
27th Sep 2026586 PMAQI
27th Sep 2026577 PMAQI
27th Sep 2026538 PMAQI
27th Sep 2026149 PMAQI
27th Sep 20265810 PMAQI
27th Sep 20264411 PMAQI
28th Sep 20265112 AMAQI
28th Sep 2026231 AMAQI
28th Sep 2026292 AMAQI
28th Sep 2026253 AMAQI
28th Sep 2026234 AMAQI

24°C22/28°C

28th Sep 2026255 AMAQI
28th Sep 2026256 AMAQI
28th Sep 2026297 AMAQI
28th Sep 2026298 AMAQI
28th Sep 2026219 AMAQI
28th Sep 20261910 AMAQI
28th Sep 20261911 AMAQI
28th Sep 20261912 PMAQI
28th Sep 2026281 PMAQI
28th Sep 2026362 PMAQI
28th Sep 2026603 PMAQI
28th Sep 2026494 PMAQI
28th Sep 2026455 PMAQI
28th Sep 2026406 PMAQI
28th Sep 2026567 PMAQI
28th Sep 2026578 PMAQI
28th Sep 2026199 PMAQI
28th Sep 20266210 PMAQI
28th Sep 20263811 PMAQI
29th Sep 20264012 AMAQI
29th Sep 2026311 AMAQI
29th Sep 2026362 AMAQI
29th Sep 2026383 AMAQI
29th Sep 2026484 AMAQI

23°C22/26°C

29th Sep 2026485 AMAQI
29th Sep 2026446 AMAQI
29th Sep 2026507 AMAQI
29th Sep 2026668 AMAQI
29th Sep 2026699 AMAQI
29th Sep 20267410 AMAQI
29th Sep 20267011 AMAQI
29th Sep 20266612 PMAQI
29th Sep 2026721 PMAQI
29th Sep 2026602 PMAQI
29th Sep 2026643 PMAQI
29th Sep 2026644 PMAQI
29th Sep 2026675 PMAQI
29th Sep 2026596 PMAQI
29th Sep 2026647 PMAQI
29th Sep 2026608 PMAQI
29th Sep 2026629 PMAQI
29th Sep 20265610 PMAQI
29th Sep 20265611 PMAQI
30th Sep 20265312 AMAQI
30th Sep 2026511 AMAQI
30th Sep 2026422 AMAQI
30th Sep 2026333 AMAQI
30th Sep 2026554 AMAQI

25°C22/29°C

30th Sep 2026525 AMAQI
30th Sep 2026586 AMAQI
30th Sep 2026627 AMAQI
30th Sep 2026628 AMAQI
30th Sep 2026649 AMAQI
30th Sep 20265910 AMAQI
30th Sep 20264611 AMAQI
30th Sep 20263212 PMAQI
30th Sep 2026211 PMAQI
30th Sep 2026212 PMAQI
30th Sep 2026213 PMAQI
30th Sep 2026254 PMAQI
30th Sep 2026385 PMAQI
30th Sep 2026506 PMAQI
30th Sep 2026237 PMAQI
30th Sep 2026258 PMAQI
30th Sep 2026369 PMAQI
30th Sep 20264410 PMAQI
30th Sep 20266311 PMAQI
1st Oct 20266012 AMAQI
1st Oct 2026761 AMAQI
1st Oct 2026582 AMAQI
1st Oct 2026663 AMAQI
1st Oct 2026704 AMAQI

27°C23/31°C

1st Oct 2026655 AMAQI
1st Oct 2026626 AMAQI
1st Oct 2026517 AMAQI
1st Oct 2026558 AMAQI
1st Oct 2026589 AMAQI
1st Oct 20266010 AMAQI
1st Oct 20265311 AMAQI
1st Oct 20264612 PMAQI
1st Oct 2026481 PMAQI
1st Oct 2026442 PMAQI
1st Oct 2026383 PMAQI
1st Oct 2026424 PMAQI
1st Oct 2026405 PMAQI
1st Oct 2026486 PMAQI
1st Oct 2026567 PMAQI
1st Oct 2026608 PMAQI
1st Oct 2026549 PMAQI
1st Oct 20267910 PMAQI
1st Oct 20267111 PMAQI
2nd Oct 20267112 AMAQI
2nd Oct 2026841 AMAQI
2nd Oct 2026832 AMAQI
2nd Oct 2026713 AMAQI
2nd Oct 2026744 AMAQI

28°C24/32°C

2nd Oct 2026685 AMAQI
5 AM
2nd Oct 2026716 AMAQI
2nd Oct 2026877 AMAQI
2nd Oct 2026598 AMAQI
2nd Oct 2026969 AMAQI
2nd Oct 20265710 AMAQI
2nd Oct 20264211 AMAQI
11 AM
2nd Oct 20264412 PMAQI
2nd Oct 2026481 PMAQI
2nd Oct 2026552 PMAQI
2nd Oct 2026533 PMAQI
2nd Oct 2026504 PMAQI
2nd Oct 2026465 PMAQI
2nd Oct 2026576 PMAQI
6 PM
2nd Oct 2026507 PMAQI
2nd Oct 2026568 PMAQI
2nd Oct 2026679 PMAQI
2nd Oct 20266410 PMAQI
2nd Oct 20266611 PMAQI
11 PM
4 AM

28°C25/32°C

Day time
Avg. Highest Time
7 AM - 9 AM

50AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
1 PM - 5 PM

42AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 9 AM (Avg. 50), while the lowest AQI was between 1 PM to 5 PM (Avg. 42).
Night time
Avg. Highest Time
8 PM

53AQI

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

41AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 8 PM (Avg. 53), while the lowest AQI was between 3 AM to 3 AM (Avg. 41).

2026 Days Vs Air Quality

Vientiane, Chanthabuly District, Laos

2026

43%

116

36%

99

16%

44

5%

13

Total number of days with different AQI categories in last 275 days in 2026 (90 days remaining)

Good
116 Days
Moderate
99 Days
Poor
44 Days
Unhealthy
13 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 43%

Health Risk Level:

Significant

In 2026, 43% of 275 days were within WHO’s safe air quality limits, and 57% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights

Vientiane, Chanthabuly District, Laos

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
103AQI (US)
2nd January 2026
67AQI (US)
3rd January 2026
43AQI (US)
4th January 2026
59AQI (US)
5th January 2026
111AQI (US)
6th January 2026
60AQI (US)
7th January 2026
50AQI (US)
8th January 2026
65AQI (US)
9th January 2026
92AQI (US)
10th January 2026
110AQI (US)
11th January 2026
104AQI (US)
12th January 2026
140AQI (US)
13th January 2026
122AQI (US)
14th January 2026
124AQI (US)
15th January 2026
139AQI (US)
16th January 2026
131AQI (US)
17th January 2026
129AQI (US)
18th January 2026
126AQI (US)
19th January 2026
109AQI (US)
20th January 2026
120AQI (US)
21st January 2026
97AQI (US)
22nd January 2026
69AQI (US)
23rd January 2026
53AQI (US)
24th January 2026
82AQI (US)
25th January 2026
100AQI (US)
26th January 2026
103AQI (US)
27th January 2026
87AQI (US)
28th January 2026
84AQI (US)
29th January 2026
97AQI (US)
30th January 2026
119AQI (US)
31st January 2026
110AQI (US)
1st February 2026
82AQI (US)
2nd February 2026
72AQI (US)
3rd February 2026
59AQI (US)
4th February 2026
81AQI (US)
5th February 2026
98AQI (US)
6th February 2026
100AQI (US)
7th February 2026
110AQI (US)
8th February 2026
75AQI (US)
9th February 2026
24AQI (US)
10th February 2026
68AQI (US)
11th February 2026
77AQI (US)
12th February 2026
76AQI (US)
13th February 2026
91AQI (US)
14th February 2026
91AQI (US)
15th February 2026
91AQI (US)
16th February 2026
108AQI (US)
17th February 2026
80AQI (US)
18th February 2026
51AQI (US)
19th February 2026
31AQI (US)
20th February 2026
37AQI (US)
21st February 2026
81AQI (US)
22nd February 2026
130AQI (US)
23rd February 2026
122AQI (US)
24th February 2026
106AQI (US)
25th February 2026
62AQI (US)
26th February 2026
58AQI (US)
27th February 2026
68AQI (US)
28th February 2026
65AQI (US)
1st March 2026
80AQI (US)
2nd March 2026
92AQI (US)
3rd March 2026
105AQI (US)
4th March 2026
87AQI (US)
5th March 2026
58AQI (US)
6th March 2026
54AQI (US)
7th March 2026
50AQI (US)
8th March 2026
53AQI (US)
9th March 2026
75AQI (US)
10th March 2026
38AQI (US)
11th March 2026
88AQI (US)
12th March 2026
71AQI (US)
13th March 2026
96AQI (US)
14th March 2026
74AQI (US)
15th March 2026
62AQI (US)
16th March 2026
73AQI (US)
17th March 2026
83AQI (US)
18th March 2026
113AQI (US)
19th March 2026
118AQI (US)
20th March 2026
116AQI (US)
21st March 2026
107AQI (US)
22nd March 2026
116AQI (US)
23rd March 2026
105AQI (US)
24th March 2026
120AQI (US)
25th March 2026
111AQI (US)
26th March 2026
109AQI (US)
27th March 2026
144AQI (US)
28th March 2026
141AQI (US)
29th March 2026
118AQI (US)
30th March 2026
137AQI (US)
31st March 2026
145AQI (US)
1st April 2026
159AQI (US)
2nd April 2026
160AQI (US)
3rd April 2026
156AQI (US)
4th April 2026
160AQI (US)
5th April 2026
164AQI (US)
6th April 2026
166AQI (US)
7th April 2026
161AQI (US)
8th April 2026
155AQI (US)
9th April 2026
152AQI (US)
10th April 2026
147AQI (US)
11th April 2026
143AQI (US)
12th April 2026
149AQI (US)
13th April 2026
156AQI (US)
14th April 2026
153AQI (US)
15th April 2026
151AQI (US)
16th April 2026
152AQI (US)
17th April 2026
18th April 2026
132AQI (US)
19th April 2026
122AQI (US)
20th April 2026
103AQI (US)
21st April 2026
128AQI (US)
22nd April 2026
23rd April 2026
136AQI (US)
24th April 2026
83AQI (US)
25th April 2026
68AQI (US)
26th April 2026
75AQI (US)
27th April 2026
94AQI (US)
28th April 2026
89AQI (US)
29th April 2026
77AQI (US)
30th April 2026
67AQI (US)
1st May 2026
78AQI (US)
2nd May 2026
56AQI (US)
3rd May 2026
86AQI (US)
4th May 2026
61AQI (US)
5th May 2026
56AQI (US)
6th May 2026
62AQI (US)
7th May 2026
88AQI (US)
8th May 2026
67AQI (US)
9th May 2026
10th May 2026
57AQI (US)
11th May 2026
78AQI (US)
12th May 2026
81AQI (US)
13th May 2026
58AQI (US)
14th May 2026
54AQI (US)
15th May 2026
41AQI (US)
16th May 2026
87AQI (US)
17th May 2026
83AQI (US)
18th May 2026
75AQI (US)
19th May 2026
60AQI (US)
20th May 2026
70AQI (US)
21st May 2026
75AQI (US)
22nd May 2026
63AQI (US)
23rd May 2026
47AQI (US)
24th May 2026
55AQI (US)
25th May 2026
57AQI (US)
26th May 2026
46AQI (US)
27th May 2026
39AQI (US)
28th May 2026
57AQI (US)
29th May 2026
42AQI (US)
30th May 2026
46AQI (US)
31st May 2026
50AQI (US)
1st June 2026
72AQI (US)
2nd June 2026
70AQI (US)
3rd June 2026
75AQI (US)
4th June 2026
63AQI (US)
5th June 2026
42AQI (US)
6th June 2026
33AQI (US)
7th June 2026
29AQI (US)
8th June 2026
28AQI (US)
9th June 2026
22AQI (US)
10th June 2026
33AQI (US)
11th June 2026
34AQI (US)
12th June 2026
34AQI (US)
13th June 2026
40AQI (US)
14th June 2026
38AQI (US)
15th June 2026
24AQI (US)
16th June 2026
33AQI (US)
17th June 2026
36AQI (US)
18th June 2026
39AQI (US)
19th June 2026
34AQI (US)
20th June 2026
32AQI (US)
21st June 2026
28AQI (US)
22nd June 2026
32AQI (US)
23rd June 2026
41AQI (US)
24th June 2026
42AQI (US)
25th June 2026
27AQI (US)
26th June 2026
35AQI (US)
27th June 2026
33AQI (US)
28th June 2026
34AQI (US)
29th June 2026
38AQI (US)
30th June 2026
31AQI (US)
1st July 2026
29AQI (US)
2nd July 2026
28AQI (US)
3rd July 2026
35AQI (US)
4th July 2026
32AQI (US)
5th July 2026
33AQI (US)
6th July 2026
27AQI (US)
7th July 2026
35AQI (US)
8th July 2026
33AQI (US)
9th July 2026
36AQI (US)
10th July 2026
37AQI (US)
11th July 2026
41AQI (US)
12th July 2026
43AQI (US)
13th July 2026
34AQI (US)
14th July 2026
46AQI (US)
15th July 2026
34AQI (US)
16th July 2026
44AQI (US)
17th July 2026
44AQI (US)
18th July 2026
46AQI (US)
19th July 2026
55AQI (US)
20th July 2026
55AQI (US)
21st July 2026
42AQI (US)
22nd July 2026
27AQI (US)
23rd July 2026
36AQI (US)
24th July 2026
29AQI (US)
25th July 2026
28AQI (US)
26th July 2026
40AQI (US)
27th July 2026
44AQI (US)
28th July 2026
34AQI (US)
29th July 2026
30AQI (US)
30th July 2026
45AQI (US)
31st July 2026
33AQI (US)
1st August 2026
39AQI (US)
2nd August 2026
34AQI (US)
3rd August 2026
35AQI (US)
4th August 2026
42AQI (US)
5th August 2026
44AQI (US)
6th August 2026
38AQI (US)
7th August 2026
43AQI (US)
8th August 2026
37AQI (US)
9th August 2026
33AQI (US)
10th August 2026
36AQI (US)
11th August 2026
49AQI (US)
12th August 2026
45AQI (US)
13th August 2026
46AQI (US)
14th August 2026
46AQI (US)
15th August 2026
50AQI (US)
16th August 2026
45AQI (US)
17th August 2026
42AQI (US)
18th August 2026
42AQI (US)
19th August 2026
34AQI (US)
20th August 2026
28AQI (US)
21st August 2026
49AQI (US)
22nd August 2026
46AQI (US)
23rd August 2026
44AQI (US)
24th August 2026
45AQI (US)
25th August 2026
53AQI (US)
26th August 2026
36AQI (US)
27th August 2026
42AQI (US)
28th August 2026
35AQI (US)
29th August 2026
48AQI (US)
30th August 2026
40AQI (US)
31st August 2026
37AQI (US)
1st September 2026
30AQI (US)
2nd September 2026
39AQI (US)
3rd September 2026
46AQI (US)
4th September 2026
54AQI (US)
5th September 2026
51AQI (US)
6th September 2026
37AQI (US)
7th September 2026
23AQI (US)
8th September 2026
51AQI (US)
9th September 2026
47AQI (US)
10th September 2026
41AQI (US)
11th September 2026
55AQI (US)
12th September 2026
63AQI (US)
13th September 2026
65AQI (US)
14th September 2026
51AQI (US)
15th September 2026
26AQI (US)
16th September 2026
34AQI (US)
17th September 2026
52AQI (US)
18th September 2026
53AQI (US)
19th September 2026
39AQI (US)
20th September 2026
33AQI (US)
21st September 2026
37AQI (US)
22nd September 2026
58AQI (US)
23rd September 2026
64AQI (US)
24th September 2026
48AQI (US)
25th September 2026
27AQI (US)
26th September 2026
24AQI (US)
27th September 2026
52AQI (US)
28th September 2026
34AQI (US)
29th September 2026
57AQI (US)
30th September 2026
43AQI (US)
1st October 2026
57AQI (US)
2nd October 2026
63AQI (US)
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

97AQI (US)

78AQI (US)

95AQI (US)

131AQI (US)

63AQI (US)

38AQI (US)

37AQI (US)

41AQI (US)

44AQI (US)

60AQI (US)

No. of days

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

202669AQI (US)

2
13
16
3
20
5
2
14
15
7
8
13
7
23
26
4
29
2
30
1
17
13
2
116
99
44
13

Highest AQI (US) recorded in

April

131AQI (US)

Lowest AQI (US) recorded in

July

37AQI (US)

202574AQI (US)

9
22
20
8
15
11
5
24
6
13
18
21
9
21
10
15
16
28
2
4
27
6
19
5
1
13
17
109
182
69
5

Highest AQI (US) recorded in

January

110AQI (US)

Lowest AQI (US) recorded in

September

43AQI (US)

202461AQI (US)

4
9
3
1
1
7
5
6
24
14
17
23
8
3
4
9
26
4
2
26
3
64
125
10

Highest AQI (US) recorded in

November

83AQI (US)

Lowest AQI (US) recorded in

March

29AQI (US)

2023109AQI (US)

7
15
9
2
12
14
5
17
4
2
14
11
2
1
16
14
1
4
26
9
22
29
2
8
21
1
1
20
9
1
5
22
2
8
20
3
22
158
114
58
6
1

Highest AQI (US) recorded in

March

174AQI (US)

Lowest AQI (US) recorded in

July

61AQI (US)

2022126AQI (US)

1
2
4
24
2
5
18
6
1
9
43
10
1

Highest AQI (US) recorded in

October

146AQI (US)

Lowest AQI (US) recorded in

November

120AQI (US)

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2022(Avg.)
126AQI (US)
Least Polluted Year Recorded
2024(Avg.)
61AQI (US)

Vientiane's annual 2026 AQI (US) (69) shows an average percentage change of -18.8% (improved AQI (US)) compared to previous years: 2022 (126), 2023 (109), 2024 (61), 2025 (74).