Houayhong, 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+
September Air Quality Analysis
Houayhong, Vientiane, Chanthabuly District, Laos
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
24th Sep 2023
103AQILowest AQI recorded on
29th Sep 2023
27AQISame Day Analysis (23rd September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 30 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 23rd Sep - 24th Sep 2025
Houayhong, Vientiane, Chanthabuly District, Laos
AQI
Day
Night
.
5 AM23rd Sep 2025
6 PM
4 AM24th Sep 2025
Day time
Avg. Highest Time
9AM23rd Sep
42AQI
Avg. Lowest Time
1PM23rd Sep
21AQI
Night time
Avg. Highest Time
9PM23rd Sep
39AQI
Avg. Lowest Time
7PM23rd Sep
24AQI
In the last 24 hours,
Houayhong's AQI reached its highest point of 42 at 9 AM during the Day, while the lowest point, 21, was recorded at 1 PM during the Day between 23rd Sep and 24th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Houayhong, Vientiane, Chanthabuly District, Laos
AugSep
25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th
Day
Night
25th Aug 2025525 AMAQI
25th Aug 2025536 AMAQI
25th Aug 2025537 AMAQI
25th Aug 2025578 AMAQI
25th Aug 2025549 AMAQI
25th Aug 20255710 AMAQI
25th Aug 20254811 AMAQI
25th Aug 20255412 PMAQI
25th Aug 2025461 PMAQI
25th Aug 2025472 PMAQI
25th Aug 2025443 PMAQI
25th Aug 2025434 PMAQI
25th Aug 2025445 PMAQI
25th Aug 2025576 PMAQI
25th Aug 2025547 PMAQI
25th Aug 2025548 PMAQI
25th Aug 2025559 PMAQI
25th Aug 20255610 PMAQI
25th Aug 20255411 PMAQI
26th Aug 20254812 AMAQI
26th Aug 2025551 AMAQI
26th Aug 2025532 AMAQI
26th Aug 2025543 AMAQI
26th Aug 2025544 AMAQI
27°C23/33°C
26th Aug 2025545 AMAQI
26th Aug 2025536 AMAQI
26th Aug 2025447 AMAQI
26th Aug 2025528 AMAQI
26th Aug 2025569 AMAQI
26th Aug 20255310 AMAQI
26th Aug 20254011 AMAQI
26th Aug 20254112 PMAQI
26th Aug 2025401 PMAQI
26th Aug 2025322 PMAQI
26th Aug 2025453 PMAQI
26th Aug 2025424 PMAQI
26th Aug 2025445 PMAQI
26th Aug 2025466 PMAQI
26th Aug 2025527 PMAQI
26th Aug 2025508 PMAQI
26th Aug 2025409 PMAQI
26th Aug 20254410 PMAQI
26th Aug 20255011 PMAQI
27th Aug 20254812 AMAQI
27th Aug 2025511 AMAQI
27th Aug 2025542 AMAQI
27th Aug 2025543 AMAQI
27th Aug 2025544 AMAQI
23°C22/24°C
27th Aug 2025545 AMAQI
27th Aug 2025546 AMAQI
27th Aug 2025357 AMAQI
27th Aug 2025488 AMAQI
27th Aug 2025489 AMAQI
27th Aug 20255010 AMAQI
27th Aug 20254811 AMAQI
27th Aug 20254012 PMAQI
27th Aug 2025441 PMAQI
27th Aug 2025462 PMAQI
27th Aug 2025393 PMAQI
27th Aug 2025444 PMAQI
27th Aug 2025425 PMAQI
27th Aug 2025486 PMAQI
27th Aug 2025497 PMAQI
27th Aug 2025528 PMAQI
27th Aug 2025499 PMAQI
27th Aug 20254510 PMAQI
27th Aug 20255411 PMAQI
28th Aug 20255412 AMAQI
28th Aug 2025521 AMAQI
28th Aug 2025522 AMAQI
28th Aug 2025523 AMAQI
28th Aug 2025524 AMAQI
24°C23/29°C
28th Aug 2025525 AMAQI
28th Aug 2025536 AMAQI
28th Aug 2025477 AMAQI
28th Aug 2025488 AMAQI
28th Aug 2025449 AMAQI
28th Aug 20253710 AMAQI
28th Aug 20255211 AMAQI
28th Aug 20254012 PMAQI
28th Aug 2025431 PMAQI
28th Aug 2025432 PMAQI
28th Aug 2025463 PMAQI
28th Aug 2025414 PMAQI
28th Aug 2025435 PMAQI
28th Aug 2025486 PMAQI
28th Aug 2025527 PMAQI
28th Aug 2025518 PMAQI
28th Aug 2025539 PMAQI
28th Aug 20255210 PMAQI
28th Aug 20255411 PMAQI
29th Aug 20255512 AMAQI
29th Aug 2025521 AMAQI
29th Aug 2025522 AMAQI
29th Aug 2025533 AMAQI
29th Aug 2025534 AMAQI
24°C23/26°C
29th Aug 2025525 AMAQI
29th Aug 2025536 AMAQI
29th Aug 2025507 AMAQI
29th Aug 2025528 AMAQI
29th Aug 2025589 AMAQI
29th Aug 20254810 AMAQI
29th Aug 20255011 AMAQI
29th Aug 20254812 PMAQI
29th Aug 2025501 PMAQI
29th Aug 2025482 PMAQI
29th Aug 2025493 PMAQI
29th Aug 2025454 PMAQI
29th Aug 2025485 PMAQI
29th Aug 2025526 PMAQI
29th Aug 2025557 PMAQI
29th Aug 2025568 PMAQI
29th Aug 2025579 PMAQI
29th Aug 20255410 PMAQI
29th Aug 20255511 PMAQI
30th Aug 20255412 AMAQI
30th Aug 2025541 AMAQI
30th Aug 2025552 AMAQI
30th Aug 2025543 AMAQI
30th Aug 2025534 AMAQI
27°C22/32°C
30th Aug 2025545 AMAQI
30th Aug 2025536 AMAQI
30th Aug 2025467 AMAQI
30th Aug 2025508 AMAQI
30th Aug 2025459 AMAQI
30th Aug 20255310 AMAQI
30th Aug 20254911 AMAQI
30th Aug 20254412 PMAQI
30th Aug 2025441 PMAQI
30th Aug 2025412 PMAQI
30th Aug 2025453 PMAQI
30th Aug 2025424 PMAQI
30th Aug 2025445 PMAQI
30th Aug 2025506 PMAQI
30th Aug 2025527 PMAQI
30th Aug 2025548 PMAQI
30th Aug 2025569 PMAQI
30th Aug 20255510 PMAQI
30th Aug 20255311 PMAQI
31st Aug 20255412 AMAQI
31st Aug 2025571 AMAQI
31st Aug 2025542 AMAQI
31st Aug 2025533 AMAQI
31st Aug 2025534 AMAQI
25°C23/27°C
31st Aug 2025545 AMAQI
31st Aug 2025536 AMAQI
31st Aug 2025407 AMAQI
31st Aug 2025408 AMAQI
31st Aug 2025459 AMAQI
31st Aug 20254210 AMAQI
31st Aug 20254111 AMAQI
31st Aug 20253812 PMAQI
31st Aug 2025341 PMAQI
31st Aug 2025412 PMAQI
31st Aug 2025353 PMAQI
31st Aug 2025374 PMAQI
31st Aug 2025375 PMAQI
31st Aug 2025476 PMAQI
31st Aug 2025507 PMAQI
31st Aug 2025508 PMAQI
31st Aug 2025529 PMAQI
31st Aug 20254610 PMAQI
31st Aug 20254711 PMAQI
1st Sep 20254212 AMAQI
1st Sep 2025491 AMAQI
1st Sep 2025532 AMAQI
1st Sep 2025523 AMAQI
1st Sep 2025524 AMAQI
25°C23/28°C
1st Sep 2025535 AMAQI
1st Sep 2025546 AMAQI
1st Sep 2025367 AMAQI
1st Sep 2025428 AMAQI
1st Sep 2025489 AMAQI
1st Sep 20254310 AMAQI
1st Sep 20254611 AMAQI
1st Sep 20254312 PMAQI
1st Sep 2025361 PMAQI
1st Sep 2025402 PMAQI
1st Sep 2025343 PMAQI
1st Sep 2025364 PMAQI
1st Sep 2025345 PMAQI
1st Sep 2025486 PMAQI
1st Sep 2025527 PMAQI
1st Sep 2025548 PMAQI
1st Sep 2025539 PMAQI
1st Sep 20255410 PMAQI
1st Sep 20255211 PMAQI
2nd Sep 20254712 AMAQI
2nd Sep 2025501 AMAQI
2nd Sep 2025522 AMAQI
2nd Sep 2025493 AMAQI
2nd Sep 2025504 AMAQI
26°C23/30°C
2nd Sep 2025495 AMAQI
2nd Sep 2025516 AMAQI
2nd Sep 2025477 AMAQI
2nd Sep 2025518 AMAQI
2nd Sep 2025449 AMAQI
2nd Sep 20254410 AMAQI
2nd Sep 20254611 AMAQI
2nd Sep 20253912 PMAQI
2nd Sep 2025381 PMAQI
2nd Sep 2025422 PMAQI
2nd Sep 2025473 PMAQI
2nd Sep 2025534 PMAQI
2nd Sep 2025405 PMAQI
2nd Sep 2025446 PMAQI
2nd Sep 2025537 PMAQI
2nd Sep 2025518 PMAQI
2nd Sep 2025499 PMAQI
2nd Sep 20255210 PMAQI
2nd Sep 20255411 PMAQI
3rd Sep 20254812 AMAQI
3rd Sep 2025521 AMAQI
3rd Sep 2025522 AMAQI
3rd Sep 2025523 AMAQI
3rd Sep 2025504 AMAQI
26°C23/30°C
3rd Sep 2025515 AMAQI
3rd Sep 2025526 AMAQI
3rd Sep 2025517 AMAQI
3rd Sep 2025548 AMAQI
3rd Sep 2025519 AMAQI
3rd Sep 20255610 AMAQI
3rd Sep 20255611 AMAQI
3rd Sep 20255212 PMAQI
3rd Sep 2025581 PMAQI
3rd Sep 2025522 PMAQI
3rd Sep 2025553 PMAQI
3rd Sep 2025544 PMAQI
3rd Sep 2025505 PMAQI
3rd Sep 2025506 PMAQI
3rd Sep 2025547 PMAQI
3rd Sep 2025578 PMAQI
3rd Sep 2025609 PMAQI
3rd Sep 20255510 PMAQI
3rd Sep 20255411 PMAQI
4th Sep 20255012 AMAQI
4th Sep 2025511 AMAQI
4th Sep 2025522 AMAQI
4th Sep 2025523 AMAQI
4th Sep 2025524 AMAQI
27°C23/32°C
4th Sep 2025535 AMAQI
4th Sep 2025516 AMAQI
4th Sep 2025547 AMAQI
4th Sep 2025568 AMAQI
4th Sep 2025589 AMAQI
4th Sep 20255710 AMAQI
4th Sep 20254811 AMAQI
4th Sep 20255312 PMAQI
4th Sep 2025501 PMAQI
4th Sep 2025432 PMAQI
4th Sep 2025383 PMAQI
4th Sep 2025164 PMAQI
4th Sep 2025145 PMAQI
4th Sep 2025166 PMAQI
4th Sep 2025227 PMAQI
4th Sep 2025348 PMAQI
4th Sep 2025539 PMAQI
4th Sep 20255510 PMAQI
4th Sep 20255311 PMAQI
5th Sep 20255412 AMAQI
5th Sep 2025521 AMAQI
5th Sep 2025512 AMAQI
5th Sep 2025513 AMAQI
5th Sep 2025534 AMAQI
27°C23/32°C
5th Sep 2025535 AMAQI
5th Sep 2025526 AMAQI
5th Sep 2025527 AMAQI
5th Sep 2025448 AMAQI
5th Sep 2025479 AMAQI
5th Sep 20255110 AMAQI
5th Sep 20253811 AMAQI
5th Sep 20255412 PMAQI
5th Sep 2025551 PMAQI
5th Sep 2025392 PMAQI
5th Sep 2025383 PMAQI
5th Sep 2025324 PMAQI
5th Sep 2025325 PMAQI
5th Sep 2025476 PMAQI
5th Sep 2025497 PMAQI
5th Sep 2025548 PMAQI
5th Sep 2025569 PMAQI
5th Sep 20255810 PMAQI
5th Sep 20255411 PMAQI
6th Sep 20255212 AMAQI
6th Sep 2025501 AMAQI
6th Sep 2025492 AMAQI
6th Sep 2025493 AMAQI
6th Sep 2025504 AMAQI
28°C24/32°C
6th Sep 2025495 AMAQI
6th Sep 2025466 AMAQI
6th Sep 2025437 AMAQI
6th Sep 2025258 AMAQI
6th Sep 2025499 AMAQI
6th Sep 20255410 AMAQI
6th Sep 20255211 AMAQI
6th Sep 20253912 PMAQI
6th Sep 2025381 PMAQI
6th Sep 2025442 PMAQI
6th Sep 2025523 PMAQI
6th Sep 2025534 PMAQI
6th Sep 2025455 PMAQI
6th Sep 2025446 PMAQI
6th Sep 2025527 PMAQI
6th Sep 2025588 PMAQI
6th Sep 2025569 PMAQI
6th Sep 20254910 PMAQI
6th Sep 20255411 PMAQI
7th Sep 20254612 AMAQI
7th Sep 2025491 AMAQI
7th Sep 2025522 AMAQI
7th Sep 2025503 AMAQI
7th Sep 2025494 AMAQI
27°C24/30°C
7th Sep 2025505 AMAQI
7th Sep 2025496 AMAQI
7th Sep 2025517 AMAQI
7th Sep 2025608 AMAQI
7th Sep 2025539 AMAQI
7th Sep 20255510 AMAQI
7th Sep 20255811 AMAQI
7th Sep 20255412 PMAQI
7th Sep 2025551 PMAQI
7th Sep 2025542 PMAQI
7th Sep 2025533 PMAQI
7th Sep 2025524 PMAQI
7th Sep 2025605 PMAQI
7th Sep 2025526 PMAQI
7th Sep 2025557 PMAQI
7th Sep 2025568 PMAQI
7th Sep 2025579 PMAQI
7th Sep 20255210 PMAQI
7th Sep 20255211 PMAQI
8th Sep 20255312 AMAQI
8th Sep 2025531 AMAQI
8th Sep 2025512 AMAQI
8th Sep 2025503 AMAQI
8th Sep 2025484 AMAQI
27°C24/32°C
8th Sep 2025515 AMAQI
8th Sep 2025506 AMAQI
8th Sep 2025447 AMAQI
8th Sep 2025628 AMAQI
8th Sep 2025609 AMAQI
8th Sep 20254810 AMAQI
8th Sep 20255211 AMAQI
8th Sep 20254612 PMAQI
8th Sep 2025441 PMAQI
8th Sep 2025412 PMAQI
8th Sep 2025383 PMAQI
8th Sep 2025394 PMAQI
8th Sep 2025425 PMAQI
8th Sep 2025496 PMAQI
8th Sep 2025547 PMAQI
8th Sep 2025568 PMAQI
8th Sep 2025599 PMAQI
8th Sep 20255210 PMAQI
8th Sep 20254911 PMAQI
9th Sep 20255012 AMAQI
9th Sep 2025511 AMAQI
9th Sep 2025522 AMAQI
9th Sep 2025523 AMAQI
9th Sep 2025524 AMAQI
27°C23/31°C
9th Sep 2025525 AMAQI
9th Sep 2025526 AMAQI
9th Sep 2025307 AMAQI
9th Sep 2025348 AMAQI
9th Sep 2025499 AMAQI
9th Sep 20253810 AMAQI
9th Sep 20253411 AMAQI
9th Sep 20254712 PMAQI
9th Sep 2025431 PMAQI
9th Sep 2025322 PMAQI
9th Sep 2025313 PMAQI
9th Sep 2025304 PMAQI
9th Sep 2025335 PMAQI
9th Sep 2025426 PMAQI
9th Sep 2025477 PMAQI
9th Sep 2025548 PMAQI
9th Sep 2025529 PMAQI
9th Sep 20254510 PMAQI
9th Sep 20254811 PMAQI
10th Sep 20255012 AMAQI
10th Sep 2025521 AMAQI
10th Sep 2025512 AMAQI
10th Sep 2025503 AMAQI
10th Sep 2025504 AMAQI
25°C23/29°C
10th Sep 2025515 AMAQI
10th Sep 2025506 AMAQI
10th Sep 2025347 AMAQI
10th Sep 2025428 AMAQI
10th Sep 2025399 AMAQI
10th Sep 20254010 AMAQI
10th Sep 20254411 AMAQI
10th Sep 20253912 PMAQI
10th Sep 2025441 PMAQI
10th Sep 2025372 PMAQI
10th Sep 2025403 PMAQI
10th Sep 2025424 PMAQI
10th Sep 2025425 PMAQI
10th Sep 2025486 PMAQI
10th Sep 2025437 PMAQI
10th Sep 2025498 PMAQI
10th Sep 2025489 PMAQI
10th Sep 20254610 PMAQI
10th Sep 20254611 PMAQI
11th Sep 20255212 AMAQI
11th Sep 2025511 AMAQI
11th Sep 2025512 AMAQI
11th Sep 2025493 AMAQI
11th Sep 2025504 AMAQI
25°C23/29°C
11th Sep 2025485 AMAQI
11th Sep 2025486 AMAQI
11th Sep 2025447 AMAQI
11th Sep 2025468 AMAQI
11th Sep 2025449 AMAQI
11th Sep 20254210 AMAQI
11th Sep 20255011 AMAQI
11th Sep 20253712 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025412 PMAQI
11th Sep 2025353 PMAQI
11th Sep 2025464 PMAQI
11th Sep 2025445 PMAQI
11th Sep 2025486 PMAQI
11th Sep 2025487 PMAQI
11th Sep 2025488 PMAQI
11th Sep 2025509 PMAQI
11th Sep 20255210 PMAQI
11th Sep 20255111 PMAQI
12th Sep 20255212 AMAQI
12th Sep 2025521 AMAQI
12th Sep 2025502 AMAQI
12th Sep 2025503 AMAQI
12th Sep 2025514 AMAQI
26°C23/31°C
12th Sep 2025505 AMAQI
12th Sep 2025516 AMAQI
12th Sep 2025417 AMAQI
12th Sep 2025468 AMAQI
12th Sep 2025519 AMAQI
12th Sep 20255010 AMAQI
12th Sep 20254511 AMAQI
12th Sep 20254812 PMAQI
12th Sep 2025411 PMAQI
12th Sep 2025422 PMAQI
12th Sep 2025443 PMAQI
12th Sep 2025394 PMAQI
12th Sep 2025415 PMAQI
12th Sep 2025466 PMAQI
12th Sep 2025467 PMAQI
12th Sep 2025548 PMAQI
12th Sep 2025549 PMAQI
12th Sep 20255010 PMAQI
12th Sep 20255211 PMAQI
13th Sep 20255012 AMAQI
13th Sep 2025511 AMAQI
13th Sep 2025502 AMAQI
13th Sep 2025503 AMAQI
13th Sep 2025504 AMAQI
27°C24/32°C
13th Sep 2025515 AMAQI
13th Sep 2025516 AMAQI
13th Sep 2025477 AMAQI
13th Sep 2025488 AMAQI
13th Sep 2025449 AMAQI
13th Sep 20254810 AMAQI
13th Sep 20255411 AMAQI
13th Sep 20254512 PMAQI
13th Sep 2025361 PMAQI
13th Sep 2025562 PMAQI
13th Sep 2025443 PMAQI
13th Sep 2025504 PMAQI
13th Sep 2025425 PMAQI
13th Sep 2025466 PMAQI
13th Sep 2025487 PMAQI
13th Sep 2025488 PMAQI
13th Sep 2025509 PMAQI
13th Sep 20255210 PMAQI
13th Sep 20254811 PMAQI
14th Sep 20255212 AMAQI
14th Sep 2025501 AMAQI
14th Sep 2025482 AMAQI
14th Sep 2025493 AMAQI
14th Sep 2025494 AMAQI
27°C23/32°C
14th Sep 2025475 AMAQI
14th Sep 2025486 AMAQI
14th Sep 2025517 AMAQI
14th Sep 2025528 AMAQI
14th Sep 2025489 AMAQI
14th Sep 20255210 AMAQI
14th Sep 20253511 AMAQI
14th Sep 20254912 PMAQI
14th Sep 2025481 PMAQI
14th Sep 2025452 PMAQI
14th Sep 2025443 PMAQI
14th Sep 2025384 PMAQI
14th Sep 2025415 PMAQI
14th Sep 2025426 PMAQI
14th Sep 2025527 PMAQI
14th Sep 2025488 PMAQI
14th Sep 2025509 PMAQI
14th Sep 20255310 PMAQI
14th Sep 20255111 PMAQI
15th Sep 20255112 AMAQI
15th Sep 2025471 AMAQI
15th Sep 2025502 AMAQI
15th Sep 2025513 AMAQI
15th Sep 2025524 AMAQI
27°C23/32°C
15th Sep 2025505 AMAQI
15th Sep 2025506 AMAQI
15th Sep 2025547 AMAQI
15th Sep 2025578 AMAQI
15th Sep 2025609 AMAQI
15th Sep 20254710 AMAQI
15th Sep 20254011 AMAQI
15th Sep 20254212 PMAQI
15th Sep 2025461 PMAQI
15th Sep 2025442 PMAQI
15th Sep 2025333 PMAQI
15th Sep 2025454 PMAQI
15th Sep 2025405 PMAQI
15th Sep 2025406 PMAQI
15th Sep 2025537 PMAQI
15th Sep 2025588 PMAQI
15th Sep 2025549 PMAQI
15th Sep 20255510 PMAQI
15th Sep 20255111 PMAQI
16th Sep 20255412 AMAQI
16th Sep 2025531 AMAQI
16th Sep 2025522 AMAQI
16th Sep 2025523 AMAQI
16th Sep 2025524 AMAQI
27°C24/32°C
16th Sep 2025525 AMAQI
16th Sep 2025526 AMAQI
16th Sep 2025427 AMAQI
16th Sep 2025378 AMAQI
16th Sep 2025329 AMAQI
16th Sep 20253810 AMAQI
16th Sep 20253411 AMAQI
16th Sep 20253012 PMAQI
16th Sep 2025301 PMAQI
16th Sep 2025342 PMAQI
16th Sep 2025303 PMAQI
16th Sep 2025374 PMAQI
16th Sep 2025325 PMAQI
16th Sep 2025426 PMAQI
16th Sep 2025407 PMAQI
16th Sep 2025518 PMAQI
16th Sep 2025549 PMAQI
16th Sep 20255610 PMAQI
16th Sep 20255811 PMAQI
17th Sep 20255612 AMAQI
17th Sep 2025541 AMAQI
17th Sep 2025522 AMAQI
17th Sep 2025503 AMAQI
17th Sep 2025504 AMAQI
26°C23/31°C
17th Sep 2025505 AMAQI
17th Sep 2025496 AMAQI
17th Sep 2025437 AMAQI
17th Sep 2025418 AMAQI
17th Sep 2025329 AMAQI
17th Sep 20254010 AMAQI
17th Sep 20255411 AMAQI
17th Sep 20254612 PMAQI
17th Sep 2025391 PMAQI
17th Sep 2025372 PMAQI
17th Sep 2025413 PMAQI
17th Sep 2025364 PMAQI
17th Sep 2025375 PMAQI
17th Sep 2025466 PMAQI
17th Sep 2025477 PMAQI
17th Sep 2025518 PMAQI
17th Sep 2025499 PMAQI
17th Sep 20255210 PMAQI
17th Sep 20254711 PMAQI
18th Sep 20254612 AMAQI
18th Sep 2025541 AMAQI
18th Sep 2025532 AMAQI
18th Sep 2025523 AMAQI
18th Sep 2025524 AMAQI
27°C23/32°C
18th Sep 2025525 AMAQI
18th Sep 2025526 AMAQI
18th Sep 2025447 AMAQI
18th Sep 2025428 AMAQI
18th Sep 2025489 AMAQI
18th Sep 20253810 AMAQI
18th Sep 20254811 AMAQI
18th Sep 20253812 PMAQI
18th Sep 2025391 PMAQI
18th Sep 2025362 PMAQI
18th Sep 2025363 PMAQI
18th Sep 2025404 PMAQI
18th Sep 2025365 PMAQI
18th Sep 2025306 PMAQI
18th Sep 2025447 PMAQI
18th Sep 2025548 PMAQI
18th Sep 2025529 PMAQI
18th Sep 20254910 PMAQI
18th Sep 20255311 PMAQI
19th Sep 20255512 AMAQI
19th Sep 2025511 AMAQI
19th Sep 2025522 AMAQI
19th Sep 2025513 AMAQI
19th Sep 2025524 AMAQI
26°C23/32°C
19th Sep 2025515 AMAQI
19th Sep 2025506 AMAQI
19th Sep 2025347 AMAQI
19th Sep 2025298 AMAQI
19th Sep 2025379 AMAQI
19th Sep 20252610 AMAQI
19th Sep 20252811 AMAQI
19th Sep 20252212 PMAQI
19th Sep 2025211 PMAQI
19th Sep 2025222 PMAQI
19th Sep 2025193 PMAQI
19th Sep 2025214 PMAQI
19th Sep 2025315 PMAQI
19th Sep 2025326 PMAQI
19th Sep 2025467 PMAQI
19th Sep 2025538 PMAQI
19th Sep 2025529 PMAQI
19th Sep 20254510 PMAQI
19th Sep 20254211 PMAQI
20th Sep 20253812 AMAQI
20th Sep 2025441 AMAQI
20th Sep 2025462 AMAQI
20th Sep 2025463 AMAQI
20th Sep 2025474 AMAQI
26°C23/31°C
20th Sep 2025485 AMAQI
20th Sep 2025476 AMAQI
20th Sep 2025297 AMAQI
20th Sep 2025228 AMAQI
20th Sep 2025249 AMAQI
20th Sep 20252510 AMAQI
20th Sep 20252511 AMAQI
20th Sep 20252512 PMAQI
20th Sep 2025261 PMAQI
20th Sep 2025252 PMAQI
20th Sep 2025213 PMAQI
20th Sep 2025234 PMAQI
20th Sep 2025285 PMAQI
20th Sep 2025326 PMAQI
20th Sep 2025387 PMAQI
20th Sep 2025518 PMAQI
20th Sep 2025569 PMAQI
20th Sep 20254810 PMAQI
20th Sep 20254211 PMAQI
21st Sep 20254112 AMAQI
21st Sep 2025441 AMAQI
21st Sep 2025422 AMAQI
21st Sep 2025423 AMAQI
21st Sep 2025424 AMAQI
25°C23/29°C
21st Sep 2025425 AMAQI
21st Sep 2025416 AMAQI
21st Sep 2025347 AMAQI
21st Sep 2025308 AMAQI
21st Sep 2025389 AMAQI
21st Sep 20253610 AMAQI
21st Sep 20253911 AMAQI
21st Sep 20253212 PMAQI
21st Sep 2025301 PMAQI
21st Sep 2025242 PMAQI
21st Sep 2025223 PMAQI
21st Sep 2025224 PMAQI
21st Sep 2025275 PMAQI
21st Sep 2025306 PMAQI
21st Sep 2025427 PMAQI
21st Sep 2025528 PMAQI
21st Sep 2025559 PMAQI
21st Sep 20255410 PMAQI
21st Sep 20255111 PMAQI
22nd Sep 20254612 AMAQI
22nd Sep 2025391 AMAQI
22nd Sep 2025402 AMAQI
22nd Sep 2025383 AMAQI
22nd Sep 2025384 AMAQI
26°C24/29°C
22nd Sep 2025385 AMAQI
22nd Sep 2025386 AMAQI
22nd Sep 2025367 AMAQI
22nd Sep 2025448 AMAQI
22nd Sep 2025449 AMAQI
22nd Sep 20255110 AMAQI
22nd Sep 20254411 AMAQI
22nd Sep 20253512 PMAQI
22nd Sep 2025241 PMAQI
22nd Sep 2025162 PMAQI
22nd Sep 2025173 PMAQI
22nd Sep 2025194 PMAQI
22nd Sep 2025225 PMAQI
22nd Sep 2025216 PMAQI
22nd Sep 2025327 PMAQI
22nd Sep 2025288 PMAQI
22nd Sep 2025299 PMAQI
22nd Sep 20252810 PMAQI
22nd Sep 20252511 PMAQI
23rd Sep 20252412 AMAQI
23rd Sep 2025311 AMAQI
23rd Sep 2025362 AMAQI
23rd Sep 2025363 AMAQI
23rd Sep 2025394 AMAQI
26°C24/29°C
23rd Sep 2025385 AMAQI
23rd Sep 2025396 AMAQI
23rd Sep 2025347 AMAQI
23rd Sep 2025358 AMAQI
23rd Sep 2025429 AMAQI
23rd Sep 20253610 AMAQI
23rd Sep 20252711 AMAQI
23rd Sep 20252212 PMAQI
23rd Sep 2025211 PMAQI
23rd Sep 2025242 PMAQI
23rd Sep 2025223 PMAQI
23rd Sep 2025274 PMAQI
23rd Sep 2025265 PMAQI
23rd Sep 2025276 PMAQI
23rd Sep 2025247 PMAQI
23rd Sep 2025348 PMAQI
23rd Sep 2025399 PMAQI
23rd Sep 20253610 PMAQI
23rd Sep 20253111 PMAQI
24th Sep 20252812 AMAQI
24th Sep 2025281 AMAQI
24th Sep 2025282 AMAQI
24th Sep 2025303 AMAQI
24th Sep 2025334 AMAQI
26°C24/31°C
24th Sep 2025325 AMAQI
5 AM24th Sep 2025336 AMAQI
24th Sep 2025237 AMAQI
24th Sep 2025238 AMAQI
24th Sep 2025249 AMAQI
24th Sep 20252110 AMAQI
24th Sep 20253311 AMAQI
11 AM24th Sep 20253012 PMAQI
24th Sep 2025241 PMAQI
24th Sep 2025272 PMAQI
24th Sep 2025283 PMAQI
24th Sep 2025304 PMAQI
24th Sep 2025305 PMAQI
24th Sep 2025306 PMAQI
6 PM24th Sep 2025287 PMAQI
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 AM
49AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
1 PM - 5 PM
38AQI
5 hours / Day
150 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 1 PM to 5 PM (Avg. 38).
Night time
Avg. Highest Time
8 PM - 9 PM
52AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
7 PM
46AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 9 PM (Avg. 52), while the lowest AQI was between 7 PM to 7 PM (Avg. 46).
2025 Days Vs Air Quality
Houayhong, Vientiane, Chanthabuly District, Laos
2025
34%
91
46%
123
18%
47
2%
5
Total number of days with different AQI categories in last 267 days in 2025 (98 days remaining)
Good
91 DaysModerate
123 DaysPoor
47 DaysUnhealthy
5 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 34%
Health Risk Level:
High
In 2025, 34% of 267 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
Houayhong, Vientiane, Chanthabuly District, Laos
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
88AQI
88AQI
2nd January 2025
86AQI
86AQI
3rd January 2025
88AQI
88AQI
4th January 2025
104AQI
104AQI
5th January 2025
107AQI
107AQI
6th January 2025
120AQI
120AQI
7th January 2025
128AQI
128AQI
8th January 2025
122AQI
122AQI
9th January 2025
121AQI
121AQI
10th January 2025
90AQI
90AQI
11th January 2025
91AQI
91AQI
12th January 2025
101AQI
101AQI
13th January 2025
110AQI
110AQI
14th January 2025
119AQI
119AQI
15th January 2025
103AQI
103AQI
16th January 2025
93AQI
93AQI
17th January 2025
108AQI
108AQI
18th January 2025
116AQI
116AQI
19th January 2025
116AQI
116AQI
20th January 2025
124AQI
124AQI
21st January 2025
122AQI
122AQI
22nd January 2025
134AQI
134AQI
23rd January 2025
134AQI
134AQI
24th January 2025
140AQI
140AQI
25th January 2025
140AQI
140AQI
26th January 2025
102AQI
102AQI
27th January 2025
86AQI
86AQI
28th January 2025
87AQI
87AQI
29th January 2025
98AQI
98AQI
30th January 2025
103AQI
103AQI
31st January 2025
117AQI
117AQI
1st February 2025
121AQI
121AQI
2nd February 2025
128AQI
128AQI
3rd February 2025
111AQI
111AQI
4th February 2025
88AQI
88AQI
5th February 2025
93AQI
93AQI
6th February 2025
106AQI
106AQI
7th February 2025
94AQI
94AQI
8th February 2025
77AQI
77AQI
9th February 2025
80AQI
80AQI
10th February 2025
83AQI
83AQI
11th February 2025
90AQI
90AQI
12th February 2025
112AQI
112AQI
13th February 2025
98AQI
98AQI
14th February 2025
98AQI
98AQI
15th February 2025
102AQI
102AQI
16th February 2025
121AQI
121AQI
17th February 2025
102AQI
102AQI
18th February 2025
96AQI
96AQI
19th February 2025
88AQI
88AQI
20th February 2025
99AQI
99AQI
21st February 2025
87AQI
87AQI
22nd February 2025
86AQI
86AQI
23rd February 2025
70AQI
70AQI
24th February 2025
68AQI
68AQI
25th February 2025
61AQI
61AQI
26th February 2025
56AQI
56AQI
27th February 2025
69AQI
69AQI
28th February 2025
83AQI
83AQI
1st March 2025
80AQI
80AQI
2nd March 2025
83AQI
83AQI
3rd March 2025
98AQI
98AQI
4th March 2025
118AQI
118AQI
5th March 2025
113AQI
113AQI
6th March 2025
112AQI
112AQI
7th March 2025
77AQI
77AQI
8th March 2025
77AQI
77AQI
9th March 2025
83AQI
83AQI
10th March 2025
71AQI
71AQI
11th March 2025
88AQI
88AQI
12th March 2025
97AQI
97AQI
13th March 2025
78AQI
78AQI
14th March 2025
84AQI
84AQI
15th March 2025
103AQI
103AQI
16th March 2025
85AQI
85AQI
17th March 2025
81AQI
81AQI
18th March 2025
82AQI
82AQI
19th March 2025
99AQI
99AQI
20th March 2025
102AQI
102AQI
21st March 2025
125AQI
125AQI
22nd March 2025
136AQI
136AQI
23rd March 2025
152AQI
152AQI
24th March 2025
157AQI
157AQI
25th March 2025
160AQI
160AQI
26th March 2025
157AQI
157AQI
27th March 2025
150AQI
150AQI
28th March 2025
152AQI
152AQI
29th March 2025
150AQI
150AQI
30th March 2025
132AQI
132AQI
31st March 2025
118AQI
118AQI
1st April 2025
108AQI
108AQI
2nd April 2025
120AQI
120AQI
3rd April 2025
131AQI
131AQI
4th April 2025
130AQI
130AQI
5th April 2025
125AQI
125AQI
6th April 2025
103AQI
103AQI
7th April 2025
96AQI
96AQI
8th April 2025
90AQI
90AQI
9th April 2025
88AQI
88AQI
10th April 2025
81AQI
81AQI
11th April 2025
85AQI
85AQI
12th April 2025
72AQI
72AQI
13th April 2025
65AQI
65AQI
14th April 2025
74AQI
74AQI
15th April 2025
68AQI
68AQI
16th April 2025
69AQI
69AQI
17th April 2025
63AQI
63AQI
18th April 2025
63AQI
63AQI
19th April 2025
63AQI
63AQI
20th April 2025
64AQI
64AQI
21st April 2025
68AQI
68AQI
22nd April 2025
75AQI
75AQI
23rd April 2025
80AQI
80AQI
24th April 2025
84AQI
84AQI
25th April 2025
88AQI
88AQI
26th April 2025
87AQI
87AQI
27th April 2025
75AQI
75AQI
28th April 2025
75AQI
75AQI
29th April 2025
72AQI
72AQI
30th April 2025
75AQI
75AQI
1st May 2025
75AQI
75AQI
2nd May 2025
77AQI
77AQI
3rd May 2025
73AQI
73AQI
4th May 2025
89AQI
89AQI
5th May 2025
93AQI
93AQI
6th May 2025
82AQI
82AQI
7th May 2025
89AQI
89AQI
8th May 2025
76AQI
76AQI
9th May 2025
65AQI
65AQI
10th May 2025
76AQI
76AQI
11th May 2025
55AQI
55AQI
12th May 2025
45AQI
45AQI
13th May 2025
65AQI
65AQI
14th May 2025
69AQI
69AQI
15th May 2025
50AQI
50AQI
16th May 2025
48AQI
48AQI
17th May 2025
54AQI
54AQI
18th May 2025
49AQI
49AQI
19th May 2025
53AQI
53AQI
20th May 2025
49AQI
49AQI
21st May 2025
58AQI
58AQI
22nd May 2025
52AQI
52AQI
23rd May 2025
56AQI
56AQI
24th May 2025
47AQI
47AQI
25th May 2025
43AQI
43AQI
26th May 2025
41AQI
41AQI
27th May 2025
42AQI
42AQI
28th May 2025
48AQI
48AQI
29th May 2025
47AQI
47AQI
30th May 2025
42AQI
42AQI
31st May 2025
39AQI
39AQI
1st June 2025
40AQI
40AQI
2nd June 2025
41AQI
41AQI
3rd June 2025
42AQI
42AQI
4th June 2025
56AQI
56AQI
5th June 2025
59AQI
59AQI
6th June 2025
61AQI
61AQI
7th June 2025
68AQI
68AQI
8th June 2025
65AQI
65AQI
9th June 2025
57AQI
57AQI
10th June 2025
59AQI
59AQI
11th June 2025
45AQI
45AQI
12th June 2025
43AQI
43AQI
13th June 2025
47AQI
47AQI
14th June 2025
55AQI
55AQI
15th June 2025
42AQI
42AQI
16th June 2025
40AQI
40AQI
17th June 2025
45AQI
45AQI
18th June 2025
49AQI
49AQI
19th June 2025
48AQI
48AQI
20th June 2025
46AQI
46AQI
21st June 2025
49AQI
49AQI
22nd June 2025
47AQI
47AQI
23rd June 2025
45AQI
45AQI
24th June 2025
46AQI
46AQI
25th June 2025
45AQI
45AQI
26th June 2025
51AQI
51AQI
27th June 2025
49AQI
49AQI
28th June 2025
44AQI
44AQI
29th June 2025
45AQI
45AQI
30th June 2025
46AQI
46AQI
1st July 2025
49AQI
49AQI
2nd July 2025
46AQI
46AQI
3rd July 2025
47AQI
47AQI
4th July 2025
48AQI
48AQI
5th July 2025
51AQI
51AQI
6th July 2025
45AQI
45AQI
7th July 2025
48AQI
48AQI
8th July 2025
52AQI
52AQI
9th July 2025
54AQI
54AQI
10th July 2025
55AQI
55AQI
11th July 2025
51AQI
51AQI
12th July 2025
54AQI
54AQI
13th July 2025
51AQI
51AQI
14th July 2025
53AQI
53AQI
15th July 2025
51AQI
51AQI
16th July 2025
41AQI
41AQI
17th July 2025
44AQI
44AQI
18th July 2025
41AQI
41AQI
19th July 2025
39AQI
39AQI
20th July 2025
38AQI
38AQI
21st July 2025
42AQI
42AQI
22nd July 2025
38AQI
38AQI
23rd July 2025
38AQI
38AQI
24th July 2025
42AQI
42AQI
25th July 2025
46AQI
46AQI
26th July 2025
50AQI
50AQI
27th July 2025
47AQI
47AQI
28th July 2025
46AQI
46AQI
29th July 2025
45AQI
45AQI
30th July 2025
48AQI
48AQI
31st July 2025
54AQI
54AQI
1st August 2025
59AQI
59AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
57AQI
57AQI
4th August 2025
57AQI
57AQI
5th August 2025
56AQI
56AQI
6th August 2025
54AQI
54AQI
7th August 2025
51AQI
51AQI
8th August 2025
56AQI
56AQI
9th August 2025
47AQI
47AQI
10th August 2025
44AQI
44AQI
11th August 2025
40AQI
40AQI
12th August 2025
48AQI
48AQI
13th August 2025
50AQI
50AQI
14th August 2025
52AQI
52AQI
15th August 2025
49AQI
49AQI
16th August 2025
46AQI
46AQI
17th August 2025
44AQI
44AQI
18th August 2025
48AQI
48AQI
19th August 2025
50AQI
50AQI
20th August 2025
50AQI
50AQI
21st August 2025
56AQI
56AQI
22nd August 2025
55AQI
55AQI
23rd August 2025
53AQI
53AQI
24th August 2025
51AQI
51AQI
25th August 2025
53AQI
53AQI
26th August 2025
45AQI
45AQI
27th August 2025
47AQI
47AQI
28th August 2025
50AQI
50AQI
29th August 2025
53AQI
53AQI
30th August 2025
51AQI
51AQI
31st August 2025
48AQI
48AQI
1st September 2025
46AQI
46AQI
2nd September 2025
48AQI
48AQI
3rd September 2025
52AQI
52AQI
4th September 2025
44AQI
44AQI
5th September 2025
50AQI
50AQI
6th September 2025
50AQI
50AQI
7th September 2025
52AQI
52AQI
8th September 2025
50AQI
50AQI
9th September 2025
46AQI
46AQI
10th September 2025
46AQI
46AQI
11th September 2025
48AQI
48AQI
12th September 2025
49AQI
49AQI
13th September 2025
49AQI
49AQI
14th September 2025
49AQI
49AQI
15th September 2025
49AQI
49AQI
16th September 2025
46AQI
46AQI
17th September 2025
48AQI
48AQI
18th September 2025
45AQI
45AQI
19th September 2025
42AQI
42AQI
20th September 2025
37AQI
37AQI
21st September 2025
40AQI
40AQI
22nd September 2025
35AQI
35AQI
23rd September 2025
30AQI
30AQI
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
110AQI
92AQI
110AQI
85AQI
60AQI
49AQI
47AQI
51AQI
46AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202573AQI
9
22
20
8
15
11
5
24
6
13
18
21
9
21
10
15
16
21
2
91
123
47
5
Highest AQI recorded in
March110AQI
Lowest AQI recorded in
September46AQI
202461AQI
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 recorded in
November83AQI
Lowest AQI recorded in
March29AQI
2023109AQI
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 recorded in
March174AQI
Lowest AQI recorded in
July61AQI
2022126AQI
1
2
4
24
2
5
18
6
1
9
43
10
1
Highest AQI recorded in
October146AQI
Lowest AQI recorded in
November120AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2022(Avg.)
126AQILeast Polluted Year Recorded
2024(Avg.)
61AQIHouayhong's annual 2025 AQI (73) shows an average percentage change of -18.9% (improved AQI) compared to previous years: 2022 (126), 2023 (109), 2024 (61).
