Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Vientiane, Viangchan, 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+

August Air Quality Analysis

Vientiane, Viangchan, Laos

2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
7th Aug 2023
97AQI
Lowest AQI recorded on
27th Aug 2024
35AQI

Same Day Analysis (1st August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 4th highest AQI at 38 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Day & Night AQI Trend: 31st Jul - 1st Aug 2026

Vientiane, Viangchan, Laos

AQI
Day
Night
.

5 AM31st Jul 2026

6 PM

4 AM1st Aug 2026

Day time
Avg. Highest Time
4PM31st Jul

42AQI

Avg. Lowest Time
3PM31st Jul

24AQI

Night time
Avg. Highest Time
12AM1st Aug

46AQI

Avg. Lowest Time
1AM1st Aug

28AQI

In the last 24 hours,

Vientiane's AQI reached its highest point of 46 at 12 AM during the Night, while the lowest point, 24, was recorded at 3 PM during the Day between 31st Jul and 1st Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Vientiane, Viangchan, Laos

JulAug
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 - 31st31st - 01st01st
Day
Night
3rd Jul 2026255 AMAQI
3rd Jul 2026286 AMAQI
3rd Jul 2026487 AMAQI
3rd Jul 2026468 AMAQI
3rd Jul 2026249 AMAQI
3rd Jul 20263010 AMAQI
3rd Jul 20262311 AMAQI
3rd Jul 20262412 PMAQI
3rd Jul 2026221 PMAQI
3rd Jul 2026222 PMAQI
3rd Jul 2026223 PMAQI
3rd Jul 2026384 PMAQI
3rd Jul 2026285 PMAQI
3rd Jul 2026376 PMAQI
3rd Jul 2026337 PMAQI
3rd Jul 2026508 PMAQI
3rd Jul 2026529 PMAQI
3rd Jul 20264410 PMAQI
3rd Jul 20264211 PMAQI
4th Jul 20264412 AMAQI
4th Jul 2026321 AMAQI
4th Jul 2026302 AMAQI
4th Jul 2026283 AMAQI
4th Jul 2026304 AMAQI

27°C24/33°C

4th Jul 2026305 AMAQI
4th Jul 2026316 AMAQI
4th Jul 2026407 AMAQI
4th Jul 2026328 AMAQI
4th Jul 2026429 AMAQI
4th Jul 20263310 AMAQI
4th Jul 20263211 AMAQI
4th Jul 20263212 PMAQI
4th Jul 2026301 PMAQI
4th Jul 2026282 PMAQI
4th Jul 2026293 PMAQI
4th Jul 2026284 PMAQI
4th Jul 2026265 PMAQI
4th Jul 2026296 PMAQI
4th Jul 2026307 PMAQI
4th Jul 2026308 PMAQI
4th Jul 2026289 PMAQI
4th Jul 20263010 PMAQI
4th Jul 20263311 PMAQI
5th Jul 20266012 AMAQI
5th Jul 2026371 AMAQI
5th Jul 2026292 AMAQI
5th Jul 2026313 AMAQI
5th Jul 2026284 AMAQI

27°C25/31°C

5th Jul 2026265 AMAQI
5th Jul 2026296 AMAQI
5th Jul 2026327 AMAQI
5th Jul 2026308 AMAQI
5th Jul 2026319 AMAQI
5th Jul 20262810 AMAQI
5th Jul 20263411 AMAQI
5th Jul 20264212 PMAQI
5th Jul 2026401 PMAQI
5th Jul 2026352 PMAQI
5th Jul 2026383 PMAQI
5th Jul 2026334 PMAQI
5th Jul 2026285 PMAQI
5th Jul 2026276 PMAQI
5th Jul 2026287 PMAQI
5th Jul 2026258 PMAQI
5th Jul 2026319 PMAQI
5th Jul 20263010 PMAQI
5th Jul 20263011 PMAQI
6th Jul 20262812 AMAQI
6th Jul 2026301 AMAQI
6th Jul 2026272 AMAQI
6th Jul 2026283 AMAQI
6th Jul 2026284 AMAQI

24°C23/25°C

6th Jul 2026305 AMAQI
6th Jul 2026286 AMAQI
6th Jul 2026237 AMAQI
6th Jul 2026388 AMAQI
6th Jul 2026429 AMAQI
6th Jul 20262410 AMAQI
6th Jul 20262311 AMAQI
6th Jul 20262612 PMAQI
6th Jul 2026281 PMAQI
6th Jul 2026302 PMAQI
6th Jul 2026243 PMAQI
6th Jul 2026234 PMAQI
6th Jul 2026255 PMAQI
6th Jul 2026146 PMAQI
6th Jul 2026147 PMAQI
6th Jul 2026168 PMAQI
6th Jul 2026209 PMAQI
6th Jul 20263110 PMAQI
6th Jul 20263111 PMAQI
7th Jul 20263512 AMAQI
7th Jul 2026321 AMAQI
7th Jul 2026302 AMAQI
7th Jul 2026323 AMAQI
7th Jul 2026344 AMAQI

24°C23/26°C

7th Jul 2026305 AMAQI
7th Jul 2026326 AMAQI
7th Jul 2026307 AMAQI
7th Jul 2026298 AMAQI
7th Jul 2026309 AMAQI
7th Jul 20262910 AMAQI
7th Jul 20262411 AMAQI
7th Jul 20263012 PMAQI
7th Jul 2026331 PMAQI
7th Jul 2026542 PMAQI
7th Jul 2026523 PMAQI
7th Jul 2026534 PMAQI
7th Jul 2026525 PMAQI
7th Jul 2026306 PMAQI
7th Jul 2026317 PMAQI
7th Jul 2026328 PMAQI
7th Jul 2026289 PMAQI
7th Jul 20263410 PMAQI
7th Jul 20263211 PMAQI
8th Jul 20263212 AMAQI
8th Jul 2026301 AMAQI
8th Jul 2026312 AMAQI
8th Jul 2026333 AMAQI
8th Jul 2026314 AMAQI

26°C23/30°C

8th Jul 2026305 AMAQI
8th Jul 2026336 AMAQI
8th Jul 2026307 AMAQI
8th Jul 2026288 AMAQI
8th Jul 2026389 AMAQI
8th Jul 20263310 AMAQI
8th Jul 20263211 AMAQI
8th Jul 20263112 PMAQI
8th Jul 2026301 PMAQI
8th Jul 2026332 PMAQI
8th Jul 2026383 PMAQI
8th Jul 2026454 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026256 PMAQI
8th Jul 2026297 PMAQI
8th Jul 2026308 PMAQI
8th Jul 2026339 PMAQI
8th Jul 20263210 PMAQI
8th Jul 20263311 PMAQI
9th Jul 20263112 AMAQI
9th Jul 2026331 AMAQI
9th Jul 2026302 AMAQI
9th Jul 2026313 AMAQI
9th Jul 2026344 AMAQI

25°C23/30°C

9th Jul 2026305 AMAQI
9th Jul 2026306 AMAQI
9th Jul 2026297 AMAQI
9th Jul 2026298 AMAQI
9th Jul 2026299 AMAQI
9th Jul 20262610 AMAQI
9th Jul 20262611 AMAQI
9th Jul 20262812 PMAQI
9th Jul 2026301 PMAQI
9th Jul 2026302 PMAQI
9th Jul 2026303 PMAQI
9th Jul 2026314 PMAQI
9th Jul 2026325 PMAQI
9th Jul 2026416 PMAQI
9th Jul 2026547 PMAQI
9th Jul 2026568 PMAQI
9th Jul 2026649 PMAQI
9th Jul 20265910 PMAQI
9th Jul 20264411 PMAQI
10th Jul 20265412 AMAQI
10th Jul 2026481 AMAQI
10th Jul 2026342 AMAQI
10th Jul 2026443 AMAQI
10th Jul 2026374 AMAQI

24°C22/29°C

10th Jul 2026345 AMAQI
10th Jul 2026416 AMAQI
10th Jul 2026547 AMAQI
10th Jul 2026538 AMAQI
10th Jul 2026419 AMAQI
10th Jul 20263710 AMAQI
10th Jul 20263511 AMAQI
10th Jul 20263812 PMAQI
10th Jul 2026281 PMAQI
10th Jul 2026292 PMAQI
10th Jul 2026323 PMAQI
10th Jul 2026324 PMAQI
10th Jul 2026345 PMAQI
10th Jul 2026346 PMAQI
10th Jul 2026367 PMAQI
10th Jul 2026358 PMAQI
10th Jul 2026209 PMAQI
10th Jul 20262110 PMAQI
10th Jul 20262311 PMAQI
11th Jul 20262312 AMAQI
11th Jul 2026331 AMAQI
11th Jul 2026322 AMAQI
11th Jul 2026353 AMAQI
11th Jul 2026354 AMAQI

25°C23/29°C

11th Jul 2026375 AMAQI
11th Jul 2026406 AMAQI
11th Jul 2026397 AMAQI
11th Jul 2026418 AMAQI
11th Jul 2026449 AMAQI
11th Jul 20263410 AMAQI
11th Jul 20264511 AMAQI
11th Jul 20264112 PMAQI
11th Jul 2026301 PMAQI
11th Jul 2026322 PMAQI
11th Jul 2026343 PMAQI
11th Jul 2026374 PMAQI
11th Jul 2026335 PMAQI
11th Jul 2026476 PMAQI
11th Jul 2026567 PMAQI
11th Jul 2026488 PMAQI
11th Jul 2026509 PMAQI
11th Jul 20265210 PMAQI
11th Jul 20265911 PMAQI
12th Jul 20266312 AMAQI
12th Jul 2026601 AMAQI
12th Jul 2026592 AMAQI
12th Jul 2026563 AMAQI
12th Jul 2026564 AMAQI

24°C23/26°C

12th Jul 2026585 AMAQI
12th Jul 2026586 AMAQI
12th Jul 2026647 AMAQI
12th Jul 2026618 AMAQI
12th Jul 2026549 AMAQI
12th Jul 20264210 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262612 PMAQI
12th Jul 2026241 PMAQI
12th Jul 2026282 PMAQI
12th Jul 2026313 PMAQI
12th Jul 2026304 PMAQI
12th Jul 2026315 PMAQI
12th Jul 2026326 PMAQI
12th Jul 2026347 PMAQI
12th Jul 2026328 PMAQI
12th Jul 2026359 PMAQI
12th Jul 20263210 PMAQI
12th Jul 20264211 PMAQI
13th Jul 20263412 AMAQI
13th Jul 2026351 AMAQI
13th Jul 2026382 AMAQI
13th Jul 2026473 AMAQI
13th Jul 2026394 AMAQI

25°C23/30°C

13th Jul 2026325 AMAQI
13th Jul 2026326 AMAQI
13th Jul 2026307 AMAQI
13th Jul 2026318 AMAQI
13th Jul 2026299 AMAQI
13th Jul 20263010 AMAQI
13th Jul 20262611 AMAQI
13th Jul 20262512 PMAQI
13th Jul 2026251 PMAQI
13th Jul 2026272 PMAQI
13th Jul 2026313 PMAQI
13th Jul 2026334 PMAQI
13th Jul 2026345 PMAQI
13th Jul 2026336 PMAQI
13th Jul 2026347 PMAQI
13th Jul 2026348 PMAQI
13th Jul 2026429 PMAQI
13th Jul 20263410 PMAQI
13th Jul 20264511 PMAQI
14th Jul 20264712 AMAQI
14th Jul 2026511 AMAQI
14th Jul 2026532 AMAQI
14th Jul 2026503 AMAQI
14th Jul 2026554 AMAQI

26°C24/29°C

14th Jul 2026685 AMAQI
14th Jul 2026626 AMAQI
14th Jul 2026587 AMAQI
14th Jul 2026628 AMAQI
14th Jul 2026659 AMAQI
14th Jul 20264910 AMAQI
14th Jul 20263711 AMAQI
14th Jul 20262912 PMAQI
14th Jul 2026301 PMAQI
14th Jul 2026312 PMAQI
14th Jul 2026333 PMAQI
14th Jul 2026304 PMAQI
14th Jul 2026325 PMAQI
14th Jul 2026306 PMAQI
14th Jul 2026407 PMAQI
14th Jul 2026478 PMAQI
14th Jul 2026379 PMAQI
14th Jul 20264010 PMAQI
14th Jul 20264411 PMAQI
15th Jul 20265012 AMAQI
15th Jul 2026461 AMAQI
15th Jul 2026202 AMAQI
15th Jul 2026303 AMAQI
15th Jul 2026244 AMAQI

27°C24/30°C

15th Jul 2026325 AMAQI
15th Jul 2026326 AMAQI
15th Jul 2026177 AMAQI
15th Jul 2026188 AMAQI
15th Jul 2026189 AMAQI
15th Jul 20262610 AMAQI
15th Jul 20262311 AMAQI
15th Jul 20262612 PMAQI
15th Jul 2026251 PMAQI
15th Jul 2026262 PMAQI
15th Jul 2026273 PMAQI
15th Jul 2026304 PMAQI
15th Jul 2026335 PMAQI
15th Jul 2026386 PMAQI
15th Jul 2026427 PMAQI
15th Jul 2026648 PMAQI
15th Jul 2026359 PMAQI
15th Jul 20266410 PMAQI
15th Jul 20265211 PMAQI
16th Jul 20265212 AMAQI
16th Jul 2026541 AMAQI
16th Jul 2026402 AMAQI
16th Jul 2026423 AMAQI
16th Jul 2026464 AMAQI

26°C24/30°C

16th Jul 2026405 AMAQI
16th Jul 2026386 AMAQI
16th Jul 2026507 AMAQI
16th Jul 2026508 AMAQI
16th Jul 2026449 AMAQI
16th Jul 20263210 AMAQI
16th Jul 20263311 AMAQI
16th Jul 20263612 PMAQI
16th Jul 2026411 PMAQI
16th Jul 2026362 PMAQI
16th Jul 2026433 PMAQI
16th Jul 2026454 PMAQI
16th Jul 2026425 PMAQI
16th Jul 2026426 PMAQI
16th Jul 2026427 PMAQI
16th Jul 2026448 PMAQI
16th Jul 2026469 PMAQI
16th Jul 20265210 PMAQI
16th Jul 20264911 PMAQI
17th Jul 20264812 AMAQI
17th Jul 2026441 AMAQI
17th Jul 2026402 AMAQI
17th Jul 2026403 AMAQI
17th Jul 2026484 AMAQI

25°C24/27°C

17th Jul 2026455 AMAQI
17th Jul 2026446 AMAQI
17th Jul 2026507 AMAQI
17th Jul 2026818 AMAQI
17th Jul 2026369 AMAQI
17th Jul 20265010 AMAQI
17th Jul 20265011 AMAQI
17th Jul 20263812 PMAQI
17th Jul 2026361 PMAQI
17th Jul 2026352 PMAQI
17th Jul 2026353 PMAQI
17th Jul 2026284 PMAQI
17th Jul 2026365 PMAQI
17th Jul 2026336 PMAQI
17th Jul 2026347 PMAQI
17th Jul 2026388 PMAQI
17th Jul 2026589 PMAQI
17th Jul 20265010 PMAQI
17th Jul 20263711 PMAQI
18th Jul 20263212 AMAQI
18th Jul 2026331 AMAQI
18th Jul 2026332 AMAQI
18th Jul 2026213 AMAQI
18th Jul 2026304 AMAQI

25°C24/27°C

18th Jul 2026385 AMAQI
18th Jul 2026366 AMAQI
18th Jul 2026487 AMAQI
18th Jul 2026588 AMAQI
18th Jul 2026529 AMAQI
18th Jul 20264510 AMAQI
18th Jul 20264211 AMAQI
18th Jul 20264512 PMAQI
18th Jul 2026421 PMAQI
18th Jul 2026452 PMAQI
18th Jul 2026433 PMAQI
18th Jul 2026434 PMAQI
18th Jul 2026405 PMAQI
18th Jul 2026376 PMAQI
18th Jul 2026507 PMAQI
18th Jul 2026608 PMAQI
18th Jul 2026659 PMAQI
18th Jul 20267010 PMAQI
18th Jul 20268311 PMAQI
19th Jul 20267212 AMAQI
19th Jul 2026681 AMAQI
19th Jul 2026542 AMAQI
19th Jul 2026523 AMAQI
19th Jul 2026554 AMAQI

27°C22/33°C

19th Jul 2026655 AMAQI
19th Jul 2026666 AMAQI
19th Jul 2026667 AMAQI
19th Jul 2026718 AMAQI
19th Jul 2026709 AMAQI
19th Jul 20266910 AMAQI
19th Jul 20266611 AMAQI
19th Jul 20264212 PMAQI
19th Jul 2026361 PMAQI
19th Jul 2026372 PMAQI
19th Jul 2026483 PMAQI
19th Jul 2026554 PMAQI
19th Jul 2026545 PMAQI
19th Jul 2026546 PMAQI
19th Jul 2026447 PMAQI
19th Jul 2026508 PMAQI
19th Jul 2026509 PMAQI
19th Jul 20265610 PMAQI
19th Jul 20266011 PMAQI
20th Jul 20266012 AMAQI
20th Jul 2026641 AMAQI
20th Jul 2026662 AMAQI
20th Jul 2026623 AMAQI
20th Jul 2026594 AMAQI

27°C23/31°C

20th Jul 2026625 AMAQI
20th Jul 2026706 AMAQI
20th Jul 2026767 AMAQI
20th Jul 2026728 AMAQI
20th Jul 2026679 AMAQI
20th Jul 20265710 AMAQI
20th Jul 20265711 AMAQI
20th Jul 20265412 PMAQI
20th Jul 2026521 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026513 PMAQI
20th Jul 2026364 PMAQI
20th Jul 2026405 PMAQI
20th Jul 2026426 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026468 PMAQI
20th Jul 2026589 PMAQI
20th Jul 20264710 PMAQI
20th Jul 20263811 PMAQI
21st Jul 20264212 AMAQI
21st Jul 2026481 AMAQI
21st Jul 2026382 AMAQI
21st Jul 2026463 AMAQI
21st Jul 2026474 AMAQI

26°C23/30°C

21st Jul 2026415 AMAQI
21st Jul 2026486 AMAQI
21st Jul 2026587 AMAQI
21st Jul 2026698 AMAQI
21st Jul 2026669 AMAQI
21st Jul 20263711 AMAQI
21st Jul 20263112 PMAQI
21st Jul 2026301 PMAQI
21st Jul 2026282 PMAQI
21st Jul 2026343 PMAQI
21st Jul 2026344 PMAQI
21st Jul 2026805 PMAQI
21st Jul 2026336 PMAQI
21st Jul 2026347 PMAQI
21st Jul 2026338 PMAQI
21st Jul 2026239 PMAQI
21st Jul 20262410 PMAQI
21st Jul 20262311 PMAQI
22nd Jul 20262112 AMAQI
22nd Jul 2026251 AMAQI
22nd Jul 2026242 AMAQI
22nd Jul 2026323 AMAQI
22nd Jul 2026334 AMAQI

26°C23/30°C

22nd Jul 2026325 AMAQI
22nd Jul 2026326 AMAQI
22nd Jul 2026257 AMAQI
22nd Jul 2026258 AMAQI
22nd Jul 2026349 AMAQI
22nd Jul 20262410 AMAQI
22nd Jul 20262411 AMAQI
22nd Jul 20262612 PMAQI
22nd Jul 2026251 PMAQI
22nd Jul 2026242 PMAQI
22nd Jul 2026243 PMAQI
22nd Jul 2026214 PMAQI
22nd Jul 2026265 PMAQI
22nd Jul 2026216 PMAQI
22nd Jul 2026247 PMAQI
22nd Jul 2026248 PMAQI
22nd Jul 2026379 PMAQI
22nd Jul 20262710 PMAQI
22nd Jul 20262811 PMAQI
23rd Jul 20262312 AMAQI
23rd Jul 2026241 AMAQI
23rd Jul 2026282 AMAQI
23rd Jul 2026283 AMAQI
23rd Jul 2026304 AMAQI

25°C23/27°C

23rd Jul 2026315 AMAQI
23rd Jul 2026296 AMAQI
23rd Jul 2026307 AMAQI
23rd Jul 2026308 AMAQI
23rd Jul 2026449 AMAQI
23rd Jul 20265410 AMAQI
23rd Jul 20264611 AMAQI
23rd Jul 20264112 PMAQI
23rd Jul 2026421 PMAQI
23rd Jul 2026302 PMAQI
23rd Jul 2026253 PMAQI
23rd Jul 2026454 PMAQI
23rd Jul 2026335 PMAQI
23rd Jul 2026336 PMAQI
23rd Jul 2026387 PMAQI
23rd Jul 2026438 PMAQI
23rd Jul 2026389 PMAQI
23rd Jul 20262310 PMAQI
23rd Jul 20264011 PMAQI
24th Jul 20262412 AMAQI
24th Jul 2026271 AMAQI
24th Jul 2026242 AMAQI
24th Jul 2026253 AMAQI
24th Jul 2026214 AMAQI

26°C23/31°C

24th Jul 2026415 AMAQI
24th Jul 2026266 AMAQI
24th Jul 2026337 AMAQI
24th Jul 2026248 AMAQI
24th Jul 2026249 AMAQI
24th Jul 20262810 AMAQI
24th Jul 20263111 AMAQI
24th Jul 20264012 PMAQI
24th Jul 2026321 PMAQI
24th Jul 2026302 PMAQI
24th Jul 2026303 PMAQI
24th Jul 2026284 PMAQI
24th Jul 2026325 PMAQI
24th Jul 2026396 PMAQI
24th Jul 2026257 PMAQI
24th Jul 2026248 PMAQI
24th Jul 2026329 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20263211 PMAQI
25th Jul 20262812 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026372 AMAQI
25th Jul 2026223 AMAQI
25th Jul 2026224 AMAQI

27°C24/31°C

25th Jul 2026335 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026307 AMAQI
25th Jul 2026248 AMAQI
25th Jul 2026229 AMAQI
25th Jul 20262910 AMAQI
25th Jul 20263211 AMAQI
25th Jul 20263612 PMAQI
25th Jul 2026341 PMAQI
25th Jul 2026242 PMAQI
25th Jul 2026303 PMAQI
25th Jul 2026224 PMAQI
25th Jul 2026245 PMAQI
25th Jul 2026246 PMAQI
25th Jul 2026287 PMAQI
25th Jul 2026248 PMAQI
25th Jul 2026219 PMAQI
25th Jul 20263810 PMAQI
25th Jul 20262411 PMAQI
26th Jul 20262612 AMAQI
26th Jul 2026261 AMAQI
26th Jul 2026342 AMAQI
26th Jul 2026313 AMAQI
26th Jul 2026464 AMAQI

27°C24/32°C

26th Jul 2026585 AMAQI
26th Jul 2026466 AMAQI
26th Jul 2026477 AMAQI
26th Jul 2026428 AMAQI
26th Jul 2026519 AMAQI
26th Jul 20265110 AMAQI
26th Jul 20263711 AMAQI
26th Jul 20263912 PMAQI
26th Jul 2026561 PMAQI
26th Jul 2026432 PMAQI
26th Jul 2026383 PMAQI
26th Jul 2026304 PMAQI
26th Jul 2026355 PMAQI
26th Jul 2026426 PMAQI
26th Jul 2026347 PMAQI
26th Jul 2026428 PMAQI
26th Jul 2026359 PMAQI
26th Jul 20263410 PMAQI
26th Jul 20263211 PMAQI
27th Jul 20264212 AMAQI
27th Jul 2026481 AMAQI
27th Jul 2026442 AMAQI
27th Jul 2026473 AMAQI
27th Jul 2026544 AMAQI

27°C24/32°C

27th Jul 2026465 AMAQI
27th Jul 2026566 AMAQI
27th Jul 2026557 AMAQI
27th Jul 2026568 AMAQI
27th Jul 2026559 AMAQI
27th Jul 20265410 AMAQI
27th Jul 20263811 AMAQI
27th Jul 20262912 PMAQI
27th Jul 2026371 PMAQI
27th Jul 2026382 PMAQI
27th Jul 2026363 PMAQI
27th Jul 2026314 PMAQI
27th Jul 2026305 PMAQI
27th Jul 2026296 PMAQI
27th Jul 2026327 PMAQI
27th Jul 2026388 PMAQI
27th Jul 2026709 PMAQI
27th Jul 20264210 PMAQI
27th Jul 20264611 PMAQI
28th Jul 20263012 AMAQI
28th Jul 2026401 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026433 AMAQI
28th Jul 2026264 AMAQI

26°C24/31°C

28th Jul 2026345 AMAQI
28th Jul 2026296 AMAQI
28th Jul 2026227 AMAQI
28th Jul 2026288 AMAQI
28th Jul 2026309 AMAQI
28th Jul 20263610 AMAQI
28th Jul 20262711 AMAQI
28th Jul 20263612 PMAQI
28th Jul 2026341 PMAQI
28th Jul 2026262 PMAQI
28th Jul 2026243 PMAQI
28th Jul 2026234 PMAQI
28th Jul 2026225 PMAQI
28th Jul 2026326 PMAQI
28th Jul 2026407 PMAQI
28th Jul 2026628 PMAQI
28th Jul 2026599 PMAQI
28th Jul 20265410 PMAQI
28th Jul 20264811 PMAQI
29th Jul 20263712 AMAQI
29th Jul 2026351 AMAQI
29th Jul 2026392 AMAQI
29th Jul 2026323 AMAQI
29th Jul 2026324 AMAQI

25°C24/27°C

29th Jul 2026225 AMAQI
29th Jul 2026296 AMAQI
29th Jul 2026327 AMAQI
29th Jul 2026308 AMAQI
29th Jul 2026279 AMAQI
29th Jul 20263310 AMAQI
29th Jul 20263311 AMAQI
29th Jul 20263312 PMAQI
29th Jul 2026321 PMAQI
29th Jul 2026302 PMAQI
29th Jul 2026303 PMAQI
29th Jul 2026264 PMAQI
29th Jul 2026315 PMAQI
29th Jul 2026226 PMAQI
29th Jul 2026277 PMAQI
29th Jul 2026298 PMAQI
29th Jul 2026249 PMAQI
29th Jul 20263010 PMAQI
29th Jul 20262811 PMAQI
30th Jul 20266012 AMAQI
30th Jul 2026641 AMAQI
30th Jul 2026622 AMAQI
30th Jul 2026633 AMAQI
30th Jul 2026614 AMAQI

25°C24/26°C

30th Jul 2026645 AMAQI
30th Jul 2026586 AMAQI
30th Jul 2026587 AMAQI
30th Jul 2026468 AMAQI
30th Jul 2026519 AMAQI
30th Jul 20265010 AMAQI
30th Jul 20264211 AMAQI
30th Jul 20263312 PMAQI
30th Jul 2026381 PMAQI
30th Jul 2026322 PMAQI
30th Jul 2026303 PMAQI
30th Jul 2026244 PMAQI
30th Jul 2026415 PMAQI
30th Jul 2026386 PMAQI
30th Jul 2026287 PMAQI
30th Jul 2026388 PMAQI
30th Jul 2026239 PMAQI
30th Jul 20263610 PMAQI
30th Jul 20262811 PMAQI
31st Jul 20263212 AMAQI
31st Jul 2026381 AMAQI
31st Jul 2026222 AMAQI
31st Jul 2026243 AMAQI
31st Jul 2026324 AMAQI

26°C23/29°C

31st Jul 2026385 AMAQI
31st Jul 2026386 AMAQI
31st Jul 2026377 AMAQI
31st Jul 2026308 AMAQI
31st Jul 2026299 AMAQI
31st Jul 20263310 AMAQI
31st Jul 20263311 AMAQI
31st Jul 20263712 PMAQI
31st Jul 2026321 PMAQI
31st Jul 2026262 PMAQI
31st Jul 2026243 PMAQI
31st Jul 2026424 PMAQI
31st Jul 2026305 PMAQI
31st Jul 2026276 PMAQI
31st Jul 2026337 PMAQI
31st Jul 2026388 PMAQI
31st Jul 2026409 PMAQI
31st Jul 20264210 PMAQI
31st Jul 20264411 PMAQI
1st Aug 20264612 AMAQI
1st Aug 2026281 AMAQI
1st Aug 2026292 AMAQI
1st Aug 2026333 AMAQI
1st Aug 2026294 AMAQI

25°C24/29°C

1st Aug 2026395 AMAQI
5 AM
1st Aug 2026406 AMAQI
1st Aug 2026357 AMAQI
1st Aug 2026428 AMAQI
1st Aug 2026499 AMAQI
1st Aug 20264910 AMAQI
1st Aug 20265011 AMAQI
11 AM
1st Aug 20264812 PMAQI
1st Aug 2026381 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026463 PMAQI
1st Aug 2026344 PMAQI
1st Aug 2026335 PMAQI
1st Aug 2026286 PMAQI
6 PM
1st Aug 2026407 PMAQI
1st Aug 2026428 PMAQI
1st Aug 2026369 PMAQI
1st Aug 20263310 PMAQI
1st Aug 20262811 PMAQI
11 PM
4 AM

25°C24/28°C

Day time
Avg. Highest Time
7 AM - 8 AM

43AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
2 PM

33AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 8 AM (Avg. 43), while the lowest AQI was between 2 PM to 2 PM (Avg. 33).
Night time
Avg. Highest Time
12 AM - 1 AM

40AQI

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

35AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 40), while the lowest AQI was between 7 PM to 7 PM (Avg. 35).

2026 Days Vs Air Quality

Vientiane, Viangchan, Laos

2026

33%

70

40%

83

22%

46

5%

11

Total number of days with different AQI categories in last 213 days in 2026 (152 days remaining)

Good
70 Days
Moderate
83 Days
Poor
46 Days
Unhealthy
11 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 33%

Health Risk Level:

High

In 2026, 33% of 213 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

Vientiane, Viangchan, 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
68AQI (US)
3rd January 2026
45AQI (US)
4th January 2026
59AQI (US)
5th January 2026
111AQI (US)
6th January 2026
60AQI (US)
7th January 2026
51AQI (US)
8th January 2026
68AQI (US)
9th January 2026
96AQI (US)
10th January 2026
114AQI (US)
11th January 2026
106AQI (US)
12th January 2026
142AQI (US)
13th January 2026
124AQI (US)
14th January 2026
124AQI (US)
15th January 2026
140AQI (US)
16th January 2026
133AQI (US)
17th January 2026
131AQI (US)
18th January 2026
127AQI (US)
19th January 2026
115AQI (US)
20th January 2026
119AQI (US)
21st January 2026
100AQI (US)
22nd January 2026
71AQI (US)
23rd January 2026
51AQI (US)
24th January 2026
79AQI (US)
25th January 2026
100AQI (US)
26th January 2026
106AQI (US)
27th January 2026
88AQI (US)
28th January 2026
84AQI (US)
29th January 2026
97AQI (US)
30th January 2026
118AQI (US)
31st January 2026
108AQI (US)
1st February 2026
80AQI (US)
2nd February 2026
72AQI (US)
3rd February 2026
58AQI (US)
4th February 2026
79AQI (US)
5th February 2026
97AQI (US)
6th February 2026
98AQI (US)
7th February 2026
108AQI (US)
8th February 2026
74AQI (US)
9th February 2026
25AQI (US)
10th February 2026
66AQI (US)
11th February 2026
77AQI (US)
12th February 2026
75AQI (US)
13th February 2026
88AQI (US)
14th February 2026
90AQI (US)
15th February 2026
93AQI (US)
16th February 2026
107AQI (US)
17th February 2026
80AQI (US)
18th February 2026
50AQI (US)
19th February 2026
32AQI (US)
20th February 2026
39AQI (US)
21st February 2026
81AQI (US)
22nd February 2026
128AQI (US)
23rd February 2026
124AQI (US)
24th February 2026
108AQI (US)
25th February 2026
65AQI (US)
26th February 2026
61AQI (US)
27th February 2026
69AQI (US)
28th February 2026
65AQI (US)
1st March 2026
81AQI (US)
2nd March 2026
92AQI (US)
3rd March 2026
108AQI (US)
4th March 2026
88AQI (US)
5th March 2026
58AQI (US)
6th March 2026
52AQI (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
72AQI (US)
13th March 2026
96AQI (US)
14th March 2026
74AQI (US)
15th March 2026
62AQI (US)
16th March 2026
73AQI (US)
17th March 2026
84AQI (US)
18th March 2026
112AQI (US)
19th March 2026
115AQI (US)
20th March 2026
114AQI (US)
21st March 2026
107AQI (US)
22nd March 2026
115AQI (US)
23rd March 2026
104AQI (US)
24th March 2026
120AQI (US)
25th March 2026
112AQI (US)
26th March 2026
109AQI (US)
27th March 2026
143AQI (US)
28th March 2026
139AQI (US)
29th March 2026
117AQI (US)
30th March 2026
135AQI (US)
31st March 2026
144AQI (US)
1st April 2026
160AQI (US)
2nd April 2026
159AQI (US)
3rd April 2026
157AQI (US)
4th April 2026
160AQI (US)
5th April 2026
165AQI (US)
6th April 2026
164AQI (US)
7th April 2026
161AQI (US)
8th April 2026
154AQI (US)
9th April 2026
151AQI (US)
10th April 2026
147AQI (US)
11th April 2026
143AQI (US)
12th April 2026
148AQI (US)
13th April 2026
156AQI (US)
14th April 2026
152AQI (US)
15th April 2026
149AQI (US)
16th April 2026
150AQI (US)
17th April 2026
18th April 2026
133AQI (US)
19th April 2026
121AQI (US)
20th April 2026
104AQI (US)
21st April 2026
127AQI (US)
22nd April 2026
23rd April 2026
135AQI (US)
24th April 2026
83AQI (US)
25th April 2026
67AQI (US)
26th April 2026
75AQI (US)
27th April 2026
92AQI (US)
28th April 2026
88AQI (US)
29th April 2026
76AQI (US)
30th April 2026
66AQI (US)
1st May 2026
76AQI (US)
2nd May 2026
55AQI (US)
3rd May 2026
85AQI (US)
4th May 2026
61AQI (US)
5th May 2026
56AQI (US)
6th May 2026
60AQI (US)
7th May 2026
86AQI (US)
8th May 2026
68AQI (US)
9th May 2026
10th May 2026
57AQI (US)
11th May 2026
77AQI (US)
12th May 2026
79AQI (US)
13th May 2026
57AQI (US)
14th May 2026
52AQI (US)
15th May 2026
39AQI (US)
16th May 2026
87AQI (US)
17th May 2026
83AQI (US)
18th May 2026
74AQI (US)
19th May 2026
59AQI (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
56AQI (US)
26th May 2026
45AQI (US)
27th May 2026
38AQI (US)
28th May 2026
57AQI (US)
29th May 2026
41AQI (US)
30th May 2026
43AQI (US)
31st May 2026
48AQI (US)
1st June 2026
70AQI (US)
2nd June 2026
70AQI (US)
3rd June 2026
74AQI (US)
4th June 2026
63AQI (US)
5th June 2026
39AQI (US)
6th June 2026
32AQI (US)
7th June 2026
29AQI (US)
8th June 2026
28AQI (US)
9th June 2026
22AQI (US)
10th June 2026
32AQI (US)
11th June 2026
33AQI (US)
12th June 2026
34AQI (US)
13th June 2026
38AQI (US)
14th June 2026
36AQI (US)
15th June 2026
24AQI (US)
16th June 2026
32AQI (US)
17th June 2026
36AQI (US)
18th June 2026
38AQI (US)
19th June 2026
33AQI (US)
20th June 2026
32AQI (US)
21st June 2026
27AQI (US)
22nd June 2026
31AQI (US)
23rd June 2026
39AQI (US)
24th June 2026
41AQI (US)
25th June 2026
26AQI (US)
26th June 2026
34AQI (US)
27th June 2026
33AQI (US)
28th June 2026
33AQI (US)
29th June 2026
35AQI (US)
30th June 2026
30AQI (US)
1st July 2026
29AQI (US)
2nd July 2026
28AQI (US)
3rd July 2026
32AQI (US)
4th July 2026
32AQI (US)
5th July 2026
32AQI (US)
6th July 2026
26AQI (US)
7th July 2026
34AQI (US)
8th July 2026
32AQI (US)
9th July 2026
36AQI (US)
10th July 2026
36AQI (US)
11th July 2026
40AQI (US)
12th July 2026
43AQI (US)
13th July 2026
33AQI (US)
14th July 2026
45AQI (US)
15th July 2026
34AQI (US)
16th July 2026
43AQI (US)
17th July 2026
43AQI (US)
18th July 2026
46AQI (US)
19th July 2026
56AQI (US)
20th July 2026
56AQI (US)
21st July 2026
42AQI (US)
22nd July 2026
26AQI (US)
23rd July 2026
34AQI (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
44AQI (US)
31st July 2026
33AQI (US)
1st August 2026
38AQI (US)
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
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

98AQI (US)

78AQI (US)

95AQI (US)

130AQI (US)

62AQI (US)

37AQI (US)

37AQI (US)

38AQI (US)

No. of days

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

202676AQI (US)

1
14
16
4
19
5
2
14
15
7
10
11
7
23
26
4
29
2
1
70
83
46
11

Highest AQI (US) recorded in

April

130AQI (US)

Lowest AQI (US) recorded in

July

37AQI (US)

202574AQI (US)

10
21
21
7
14
10
7
24
6
13
18
22
8
25
6
16
15
26
4
4
27
6
19
5
1
13
17
113
179
66
7

Highest AQI (US) recorded in

January

110AQI (US)

Lowest AQI (US) recorded in

September

43AQI (US)

202476AQI (US)

16
15
2
21
6
1
9
3
22
8
7
24
7
23
14
17
24
7
4
5
17
1
27
3
2
26
3
64
190
54
6

Highest AQI (US) recorded in

February

135AQI (US)

Lowest AQI (US) recorded in

September

39AQI (US)

2023108AQI (US)

5
18
7
1
9
16
3
3
20
8
1
9
15
4
1
12
19
7
23
14
16
1
31
15
15
4
18
9
9
20
8
22
1
40
138
110
59
16
1

Highest AQI (US) recorded in

March

186AQI (US)

Lowest AQI (US) recorded in

September

52AQI (US)

2022123AQI (US)

3
1
7
22
1
1
4
18
8
1
11
43
10

Highest AQI (US) recorded in

October

133AQI (US)

Lowest AQI (US) recorded in

November

113AQI (US)

202055AQI (US)

1
1

Highest AQI (US) recorded in

October

55AQI (US)

Lowest AQI (US) recorded in

October

55AQI (US)

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2022(Avg.)
123AQI (US)
Least Polluted Year Recorded
2020(Avg.)
55AQI (US)

Vientiane's annual 2026 AQI (US) (76) shows an average percentage change of -5.3% (improved AQI (US)) compared to previous years: 2020 (55), 2022 (123), 2023 (108), 2024 (76), 2025 (74).