Ko Samui, Surat Thani, 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+
September Air Quality Analysis
Ko Samui, Surat Thani, Thailand
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Sep 2024
60AQILowest AQI recorded on
29th Sep 2025
15AQISame Day Analysis (29th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 15 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 30th Sep - 1st Oct 2025
Ko Samui, Surat Thani, Thailand
AQI
Day
Night
.
6 AM30th Sep 2025
6 PM
5 AM1st Oct 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
10PM30th Sep
38AQI
Avg. Lowest Time
7AM30th Sep
8AQI
In the last 24 hours,
Ko Samui's AQI reached its highest point of 38 at 10 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 30th Sep and 1st Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Ko Samui, Surat Thani, Thailand
SepOct
01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st
Day
Night
1st Sep 2025536 AMAQI
1st Sep 2025487 AMAQI
1st Sep 2025438 AMAQI
1st Sep 2025429 AMAQI
1st Sep 20254710 AMAQI
1st Sep 20255211 AMAQI
1st Sep 20254512 PMAQI
1st Sep 2025481 PMAQI
1st Sep 2025472 PMAQI
1st Sep 2025443 PMAQI
1st Sep 2025504 PMAQI
1st Sep 2025405 PMAQI
1st Sep 2025506 PMAQI
1st Sep 2025537 PMAQI
1st Sep 2025528 PMAQI
1st Sep 2025529 PMAQI
1st Sep 20255210 PMAQI
1st Sep 20255411 PMAQI
2nd Sep 20255312 AMAQI
2nd Sep 2025531 AMAQI
2nd Sep 2025552 AMAQI
2nd Sep 2025543 AMAQI
2nd Sep 2025544 AMAQI
2nd Sep 2025535 AMAQI
28°C27/29°C
2nd Sep 2025546 AMAQI
2nd Sep 2025347 AMAQI
2nd Sep 2025368 AMAQI
2nd Sep 2025519 AMAQI
2nd Sep 20254510 AMAQI
2nd Sep 20255211 AMAQI
2nd Sep 20254212 PMAQI
2nd Sep 2025481 PMAQI
2nd Sep 2025432 PMAQI
2nd Sep 2025383 PMAQI
2nd Sep 2025364 PMAQI
2nd Sep 2025425 PMAQI
2nd Sep 2025486 PMAQI
2nd Sep 2025497 PMAQI
2nd Sep 2025518 PMAQI
2nd Sep 2025519 PMAQI
2nd Sep 20255210 PMAQI
2nd Sep 20255111 PMAQI
3rd Sep 20255412 AMAQI
3rd Sep 2025561 AMAQI
3rd Sep 2025542 AMAQI
3rd Sep 2025533 AMAQI
3rd Sep 2025534 AMAQI
3rd Sep 2025525 AMAQI
29°C28/30°C
3rd Sep 2025546 AMAQI
3rd Sep 2025507 AMAQI
3rd Sep 2025488 AMAQI
3rd Sep 2025489 AMAQI
3rd Sep 20255310 AMAQI
3rd Sep 20255011 AMAQI
3rd Sep 20255212 PMAQI
3rd Sep 2025441 PMAQI
3rd Sep 2025492 PMAQI
3rd Sep 2025443 PMAQI
3rd Sep 2025444 PMAQI
3rd Sep 2025375 PMAQI
3rd Sep 2025396 PMAQI
3rd Sep 2025457 PMAQI
3rd Sep 2025468 PMAQI
3rd Sep 2025459 PMAQI
3rd Sep 20254410 PMAQI
3rd Sep 20254711 PMAQI
4th Sep 20255012 AMAQI
4th Sep 2025531 AMAQI
4th Sep 2025522 AMAQI
4th Sep 2025523 AMAQI
4th Sep 2025534 AMAQI
4th Sep 2025545 AMAQI
29°C28/29°C
4th Sep 2025536 AMAQI
4th Sep 2025367 AMAQI
4th Sep 2025408 AMAQI
4th Sep 2025499 AMAQI
4th Sep 20253610 AMAQI
4th Sep 20253611 AMAQI
4th Sep 20253612 PMAQI
4th Sep 2025381 PMAQI
4th Sep 2025422 PMAQI
4th Sep 2025223 PMAQI
4th Sep 2025174 PMAQI
4th Sep 2025155 PMAQI
4th Sep 2025196 PMAQI
4th Sep 2025197 PMAQI
4th Sep 2025178 PMAQI
4th Sep 2025149 PMAQI
4th Sep 20252010 PMAQI
4th Sep 20253711 PMAQI
5th Sep 20254912 AMAQI
5th Sep 2025541 AMAQI
5th Sep 2025532 AMAQI
5th Sep 2025503 AMAQI
5th Sep 2025544 AMAQI
5th Sep 2025515 AMAQI
28°C28/29°C
5th Sep 2025516 AMAQI
5th Sep 2025337 AMAQI
5th Sep 2025328 AMAQI
5th Sep 2025439 AMAQI
5th Sep 20254010 AMAQI
5th Sep 20254411 AMAQI
5th Sep 20255312 PMAQI
5th Sep 2025411 PMAQI
5th Sep 2025302 PMAQI
5th Sep 2025343 PMAQI
5th Sep 2025384 PMAQI
5th Sep 2025345 PMAQI
5th Sep 2025426 PMAQI
5th Sep 2025497 PMAQI
5th Sep 2025508 PMAQI
5th Sep 2025489 PMAQI
5th Sep 20255310 PMAQI
5th Sep 20254811 PMAQI
6th Sep 20255012 AMAQI
6th Sep 2025481 AMAQI
6th Sep 2025502 AMAQI
6th Sep 2025493 AMAQI
6th Sep 2025504 AMAQI
6th Sep 2025475 AMAQI
29°C28/30°C
6th Sep 2025506 AMAQI
6th Sep 2025557 AMAQI
6th Sep 2025458 AMAQI
6th Sep 2025519 AMAQI
6th Sep 20254910 AMAQI
6th Sep 20255011 AMAQI
6th Sep 20254212 PMAQI
6th Sep 2025371 PMAQI
6th Sep 2025432 PMAQI
6th Sep 2025393 PMAQI
6th Sep 2025384 PMAQI
6th Sep 2025395 PMAQI
6th Sep 2025466 PMAQI
6th Sep 2025507 PMAQI
6th Sep 2025518 PMAQI
6th Sep 2025529 PMAQI
6th Sep 20254610 PMAQI
6th Sep 20255011 PMAQI
7th Sep 20255012 AMAQI
7th Sep 2025481 AMAQI
7th Sep 2025512 AMAQI
7th Sep 2025523 AMAQI
7th Sep 2025524 AMAQI
7th Sep 2025525 AMAQI
29°C28/30°C
7th Sep 2025506 AMAQI
7th Sep 2025407 AMAQI
7th Sep 2025368 AMAQI
7th Sep 2025359 AMAQI
7th Sep 20253710 AMAQI
7th Sep 20255011 AMAQI
7th Sep 20253712 PMAQI
7th Sep 2025491 PMAQI
7th Sep 2025402 PMAQI
7th Sep 2025343 PMAQI
7th Sep 2025464 PMAQI
7th Sep 2025395 PMAQI
7th Sep 2025486 PMAQI
7th Sep 2025507 PMAQI
7th Sep 2025538 PMAQI
7th Sep 2025519 PMAQI
7th Sep 20254410 PMAQI
7th Sep 20254611 PMAQI
8th Sep 20255012 AMAQI
8th Sep 2025501 AMAQI
8th Sep 2025502 AMAQI
8th Sep 2025503 AMAQI
8th Sep 2025504 AMAQI
8th Sep 2025515 AMAQI
29°C28/29°C
8th Sep 2025516 AMAQI
8th Sep 2025367 AMAQI
8th Sep 2025408 AMAQI
8th Sep 2025489 AMAQI
8th Sep 20254810 AMAQI
8th Sep 20255111 AMAQI
8th Sep 20254812 PMAQI
8th Sep 2025431 PMAQI
8th Sep 2025422 PMAQI
8th Sep 2025443 PMAQI
8th Sep 2025454 PMAQI
8th Sep 2025515 PMAQI
8th Sep 2025506 PMAQI
8th Sep 2025537 PMAQI
8th Sep 2025538 PMAQI
8th Sep 2025539 PMAQI
8th Sep 20255010 PMAQI
8th Sep 20255211 PMAQI
9th Sep 20254812 AMAQI
9th Sep 2025531 AMAQI
9th Sep 2025522 AMAQI
9th Sep 2025523 AMAQI
9th Sep 2025524 AMAQI
9th Sep 2025535 AMAQI
28°C28/29°C
9th Sep 2025526 AMAQI
9th Sep 2025427 AMAQI
9th Sep 2025358 AMAQI
9th Sep 2025479 AMAQI
9th Sep 20254610 AMAQI
9th Sep 20254011 AMAQI
9th Sep 20253612 PMAQI
9th Sep 2025431 PMAQI
9th Sep 2025342 PMAQI
9th Sep 2025403 PMAQI
9th Sep 2025424 PMAQI
9th Sep 2025405 PMAQI
9th Sep 2025506 PMAQI
9th Sep 2025527 PMAQI
9th Sep 2025498 PMAQI
9th Sep 2025519 PMAQI
9th Sep 20255110 PMAQI
9th Sep 20254811 PMAQI
10th Sep 20254912 AMAQI
10th Sep 2025501 AMAQI
10th Sep 2025502 AMAQI
10th Sep 2025503 AMAQI
10th Sep 2025494 AMAQI
10th Sep 2025515 AMAQI
28°C27/29°C
10th Sep 2025506 AMAQI
10th Sep 2025447 AMAQI
10th Sep 2025448 AMAQI
10th Sep 2025409 AMAQI
10th Sep 20254310 AMAQI
10th Sep 20254011 AMAQI
10th Sep 20254212 PMAQI
10th Sep 2025371 PMAQI
10th Sep 2025402 PMAQI
10th Sep 2025333 PMAQI
10th Sep 2025434 PMAQI
10th Sep 2025425 PMAQI
10th Sep 2025486 PMAQI
10th Sep 2025487 PMAQI
10th Sep 2025548 PMAQI
10th Sep 2025539 PMAQI
10th Sep 20255010 PMAQI
10th Sep 20255211 PMAQI
11th Sep 20255012 AMAQI
11th Sep 2025511 AMAQI
11th Sep 2025512 AMAQI
11th Sep 2025513 AMAQI
11th Sep 2025514 AMAQI
11th Sep 2025505 AMAQI
28°C28/29°C
11th Sep 2025486 AMAQI
11th Sep 2025567 AMAQI
11th Sep 2025368 AMAQI
11th Sep 2025589 AMAQI
11th Sep 20254310 AMAQI
11th Sep 20254611 AMAQI
11th Sep 20254212 PMAQI
11th Sep 2025361 PMAQI
11th Sep 2025372 PMAQI
11th Sep 2025463 PMAQI
11th Sep 2025414 PMAQI
11th Sep 2025365 PMAQI
11th Sep 2025466 PMAQI
11th Sep 2025467 PMAQI
11th Sep 2025488 PMAQI
11th Sep 2025449 PMAQI
11th Sep 20254810 PMAQI
11th Sep 20255011 PMAQI
12th Sep 20255112 AMAQI
12th Sep 2025521 AMAQI
12th Sep 2025522 AMAQI
12th Sep 2025523 AMAQI
12th Sep 2025524 AMAQI
12th Sep 2025525 AMAQI
28°C28/28°C
12th Sep 2025526 AMAQI
12th Sep 2025467 AMAQI
12th Sep 2025358 AMAQI
12th Sep 2025409 AMAQI
12th Sep 20253910 AMAQI
12th Sep 20254111 AMAQI
12th Sep 20253912 PMAQI
12th Sep 2025441 PMAQI
12th Sep 2025322 PMAQI
12th Sep 2025333 PMAQI
12th Sep 2025364 PMAQI
12th Sep 2025425 PMAQI
12th Sep 2025426 PMAQI
12th Sep 2025467 PMAQI
12th Sep 2025488 PMAQI
12th Sep 2025549 PMAQI
12th Sep 20255010 PMAQI
12th Sep 20255011 PMAQI
13th Sep 20255112 AMAQI
13th Sep 2025521 AMAQI
13th Sep 2025512 AMAQI
13th Sep 2025503 AMAQI
13th Sep 2025504 AMAQI
13th Sep 2025505 AMAQI
28°C28/29°C
13th Sep 2025486 AMAQI
13th Sep 2025457 AMAQI
13th Sep 2025298 AMAQI
13th Sep 2025449 AMAQI
13th Sep 20254410 AMAQI
13th Sep 20254511 AMAQI
13th Sep 20254612 PMAQI
13th Sep 2025471 PMAQI
13th Sep 2025372 PMAQI
13th Sep 2025373 PMAQI
13th Sep 2025414 PMAQI
13th Sep 2025485 PMAQI
13th Sep 2025426 PMAQI
13th Sep 2025467 PMAQI
13th Sep 2025468 PMAQI
13th Sep 2025479 PMAQI
13th Sep 20255210 PMAQI
13th Sep 20254911 PMAQI
14th Sep 20255112 AMAQI
14th Sep 2025511 AMAQI
14th Sep 2025502 AMAQI
14th Sep 2025503 AMAQI
14th Sep 2025524 AMAQI
14th Sep 2025515 AMAQI
28°C26/29°C
14th Sep 2025506 AMAQI
14th Sep 2025377 AMAQI
14th Sep 2025308 AMAQI
14th Sep 2025419 AMAQI
14th Sep 20254610 AMAQI
14th Sep 20254211 AMAQI
14th Sep 20254712 PMAQI
14th Sep 2025371 PMAQI
14th Sep 2025382 PMAQI
14th Sep 2025423 PMAQI
14th Sep 2025324 PMAQI
14th Sep 2025415 PMAQI
14th Sep 2025386 PMAQI
14th Sep 2025507 PMAQI
14th Sep 2025508 PMAQI
14th Sep 2025549 PMAQI
14th Sep 20255110 PMAQI
14th Sep 20255211 PMAQI
15th Sep 20254912 AMAQI
15th Sep 2025501 AMAQI
15th Sep 2025512 AMAQI
15th Sep 2025503 AMAQI
15th Sep 2025524 AMAQI
15th Sep 2025525 AMAQI
28°C27/28°C
15th Sep 2025516 AMAQI
15th Sep 2025347 AMAQI
15th Sep 2025318 AMAQI
15th Sep 2025389 AMAQI
15th Sep 20253210 AMAQI
15th Sep 20252911 AMAQI
15th Sep 20252612 PMAQI
15th Sep 2025351 PMAQI
15th Sep 2025322 PMAQI
15th Sep 2025273 PMAQI
15th Sep 2025324 PMAQI
15th Sep 2025385 PMAQI
15th Sep 2025416 PMAQI
15th Sep 2025487 PMAQI
15th Sep 2025488 PMAQI
15th Sep 2025479 PMAQI
15th Sep 20255210 PMAQI
15th Sep 20254011 PMAQI
16th Sep 20254512 AMAQI
16th Sep 2025481 AMAQI
16th Sep 2025462 AMAQI
16th Sep 2025453 AMAQI
16th Sep 2025474 AMAQI
16th Sep 2025485 AMAQI
28°C27/29°C
16th Sep 2025476 AMAQI
16th Sep 2025367 AMAQI
16th Sep 2025348 AMAQI
16th Sep 2025389 AMAQI
16th Sep 20254610 AMAQI
16th Sep 20253711 AMAQI
16th Sep 20253912 PMAQI
16th Sep 2025321 PMAQI
16th Sep 2025382 PMAQI
16th Sep 2025293 PMAQI
16th Sep 2025344 PMAQI
16th Sep 2025305 PMAQI
16th Sep 2025426 PMAQI
16th Sep 2025407 PMAQI
16th Sep 2025448 PMAQI
16th Sep 2025449 PMAQI
16th Sep 20254210 PMAQI
16th Sep 20254111 PMAQI
17th Sep 20254812 AMAQI
17th Sep 2025501 AMAQI
17th Sep 2025502 AMAQI
17th Sep 2025463 AMAQI
17th Sep 2025474 AMAQI
17th Sep 2025475 AMAQI
29°C28/30°C
17th Sep 2025496 AMAQI
17th Sep 2025407 AMAQI
17th Sep 2025368 AMAQI
17th Sep 2025379 AMAQI
17th Sep 20253810 AMAQI
17th Sep 20253411 AMAQI
17th Sep 20254412 PMAQI
17th Sep 2025421 PMAQI
17th Sep 2025382 PMAQI
17th Sep 2025413 PMAQI
17th Sep 2025364 PMAQI
17th Sep 2025365 PMAQI
17th Sep 2025366 PMAQI
17th Sep 2025417 PMAQI
17th Sep 2025368 PMAQI
17th Sep 2025359 PMAQI
17th Sep 20253610 PMAQI
17th Sep 20253211 PMAQI
18th Sep 20253812 AMAQI
18th Sep 2025451 AMAQI
18th Sep 2025482 AMAQI
18th Sep 2025463 AMAQI
18th Sep 2025464 AMAQI
18th Sep 2025465 AMAQI
29°C28/29°C
18th Sep 2025466 AMAQI
18th Sep 2025307 AMAQI
18th Sep 2025328 AMAQI
18th Sep 2025309 AMAQI
18th Sep 20253210 AMAQI
18th Sep 20252811 AMAQI
18th Sep 20252512 PMAQI
18th Sep 2025241 PMAQI
18th Sep 2025242 PMAQI
18th Sep 2025223 PMAQI
18th Sep 2025224 PMAQI
18th Sep 2025225 PMAQI
18th Sep 2025266 PMAQI
18th Sep 2025347 PMAQI
18th Sep 2025358 PMAQI
18th Sep 2025339 PMAQI
18th Sep 20253010 PMAQI
18th Sep 20253411 PMAQI
19th Sep 20253512 AMAQI
19th Sep 2025421 AMAQI
19th Sep 2025382 AMAQI
19th Sep 2025383 AMAQI
19th Sep 2025414 AMAQI
19th Sep 2025425 AMAQI
28°C27/28°C
19th Sep 2025426 AMAQI
19th Sep 2025317 AMAQI
19th Sep 2025278 AMAQI
19th Sep 2025329 AMAQI
19th Sep 20252710 AMAQI
19th Sep 20252411 AMAQI
19th Sep 20252712 PMAQI
19th Sep 2025271 PMAQI
19th Sep 2025252 PMAQI
19th Sep 2025243 PMAQI
19th Sep 2025274 PMAQI
19th Sep 2025265 PMAQI
19th Sep 2025286 PMAQI
19th Sep 2025317 PMAQI
19th Sep 2025328 PMAQI
19th Sep 2025329 PMAQI
19th Sep 20253010 PMAQI
19th Sep 20253011 PMAQI
20th Sep 20253012 AMAQI
20th Sep 2025401 AMAQI
20th Sep 2025412 AMAQI
20th Sep 2025423 AMAQI
20th Sep 2025424 AMAQI
20th Sep 2025415 AMAQI
28°C27/29°C
20th Sep 2025406 AMAQI
20th Sep 2025257 AMAQI
20th Sep 2025268 AMAQI
20th Sep 2025269 AMAQI
20th Sep 20253010 AMAQI
20th Sep 20252711 AMAQI
20th Sep 20252412 PMAQI
20th Sep 2025281 PMAQI
20th Sep 2025272 PMAQI
20th Sep 2025243 PMAQI
20th Sep 2025274 PMAQI
20th Sep 2025255 PMAQI
20th Sep 2025286 PMAQI
20th Sep 2025327 PMAQI
20th Sep 2025318 PMAQI
20th Sep 2025369 PMAQI
20th Sep 20253210 PMAQI
20th Sep 20253311 PMAQI
21st Sep 20253112 AMAQI
21st Sep 2025411 AMAQI
21st Sep 2025402 AMAQI
21st Sep 2025423 AMAQI
21st Sep 2025404 AMAQI
21st Sep 2025405 AMAQI
29°C28/30°C
21st Sep 2025406 AMAQI
21st Sep 2025317 AMAQI
21st Sep 2025308 AMAQI
21st Sep 2025319 AMAQI
21st Sep 20252910 AMAQI
21st Sep 20252811 AMAQI
21st Sep 20252712 PMAQI
21st Sep 2025251 PMAQI
21st Sep 2025272 PMAQI
21st Sep 2025263 PMAQI
21st Sep 2025264 PMAQI
21st Sep 2025285 PMAQI
21st Sep 2025266 PMAQI
21st Sep 2025327 PMAQI
21st Sep 2025328 PMAQI
21st Sep 2025319 PMAQI
21st Sep 20253010 PMAQI
21st Sep 20252711 PMAQI
22nd Sep 20253012 AMAQI
22nd Sep 2025361 AMAQI
22nd Sep 2025392 AMAQI
22nd Sep 2025383 AMAQI
22nd Sep 2025394 AMAQI
22nd Sep 2025415 AMAQI
29°C28/30°C
22nd Sep 2025406 AMAQI
22nd Sep 2025397 AMAQI
22nd Sep 2025408 AMAQI
22nd Sep 2025449 AMAQI
22nd Sep 20254210 AMAQI
22nd Sep 20253911 AMAQI
22nd Sep 20253912 PMAQI
22nd Sep 2025391 PMAQI
22nd Sep 2025392 PMAQI
22nd Sep 2025363 PMAQI
22nd Sep 2025334 PMAQI
22nd Sep 2025365 PMAQI
22nd Sep 2025346 PMAQI
22nd Sep 2025437 PMAQI
22nd Sep 2025548 PMAQI
22nd Sep 2025469 PMAQI
22nd Sep 20253710 PMAQI
22nd Sep 20253511 PMAQI
23rd Sep 20253712 AMAQI
23rd Sep 2025441 AMAQI
23rd Sep 2025462 AMAQI
23rd Sep 2025433 AMAQI
23rd Sep 2025444 AMAQI
23rd Sep 2025425 AMAQI
29°C28/29°C
23rd Sep 2025426 AMAQI
23rd Sep 2025407 AMAQI
23rd Sep 2025388 AMAQI
23rd Sep 2025389 AMAQI
23rd Sep 20254010 AMAQI
23rd Sep 20253911 AMAQI
23rd Sep 20253412 PMAQI
23rd Sep 2025351 PMAQI
23rd Sep 2025322 PMAQI
23rd Sep 2025323 PMAQI
23rd Sep 2025334 PMAQI
23rd Sep 2025355 PMAQI
23rd Sep 2025346 PMAQI
23rd Sep 2025397 PMAQI
23rd Sep 2025358 PMAQI
23rd Sep 2025359 PMAQI
23rd Sep 20253210 PMAQI
23rd Sep 20253611 PMAQI
24th Sep 20253612 AMAQI
24th Sep 2025461 AMAQI
24th Sep 2025452 AMAQI
24th Sep 2025423 AMAQI
24th Sep 2025444 AMAQI
24th Sep 2025445 AMAQI
29°C28/30°C
24th Sep 2025436 AMAQI
24th Sep 2025347 AMAQI
24th Sep 2025368 AMAQI
24th Sep 2025369 AMAQI
24th Sep 20253210 AMAQI
24th Sep 20253011 AMAQI
24th Sep 20252912 PMAQI
24th Sep 2025291 PMAQI
24th Sep 2025302 PMAQI
24th Sep 2025273 PMAQI
24th Sep 2025254 PMAQI
24th Sep 2025265 PMAQI
24th Sep 2025246 PMAQI
24th Sep 2025327 PMAQI
24th Sep 2025368 PMAQI
24th Sep 2025319 PMAQI
24th Sep 20253610 PMAQI
24th Sep 20253811 PMAQI
25th Sep 20254112 AMAQI
25th Sep 2025451 AMAQI
25th Sep 2025432 AMAQI
25th Sep 2025443 AMAQI
25th Sep 2025434 AMAQI
25th Sep 2025435 AMAQI
29°C28/30°C
25th Sep 2025436 AMAQI
25th Sep 2025377 AMAQI
25th Sep 2025418 AMAQI
25th Sep 2025409 AMAQI
25th Sep 20253810 AMAQI
25th Sep 20253511 AMAQI
25th Sep 20252712 PMAQI
25th Sep 2025221 PMAQI
25th Sep 2025172 PMAQI
25th Sep 2025273 PMAQI
25th Sep 2025284 PMAQI
25th Sep 2025185 PMAQI
25th Sep 2025196 PMAQI
25th Sep 2025177 PMAQI
25th Sep 2025228 PMAQI
25th Sep 2025179 PMAQI
25th Sep 20251710 PMAQI
25th Sep 20251711 PMAQI
26th Sep 20251612 AMAQI
26th Sep 2025221 AMAQI
26th Sep 2025162 AMAQI
26th Sep 2025193 AMAQI
26th Sep 2025364 AMAQI
26th Sep 2025105 AMAQI
29°C28/31°C
26th Sep 2025176 AMAQI
26th Sep 2025117 AMAQI
26th Sep 2025218 AMAQI
26th Sep 2025309 AMAQI
26th Sep 20252310 AMAQI
26th Sep 20251911 AMAQI
26th Sep 20252712 PMAQI
26th Sep 2025141 PMAQI
26th Sep 2025142 PMAQI
26th Sep 2025183 PMAQI
26th Sep 2025214 PMAQI
26th Sep 2025225 PMAQI
26th Sep 2025226 PMAQI
26th Sep 2025487 PMAQI
26th Sep 2025518 PMAQI
26th Sep 2025469 PMAQI
26th Sep 20259110 PMAQI
26th Sep 20256811 PMAQI
27th Sep 20254412 AMAQI
27th Sep 2025501 AMAQI
27th Sep 2025492 AMAQI
27th Sep 2025483 AMAQI
27th Sep 2025344 AMAQI
27th Sep 2025425 AMAQI
29°C28/30°C
27th Sep 2025546 AMAQI
27th Sep 2025497 AMAQI
27th Sep 2025448 AMAQI
27th Sep 2025499 AMAQI
27th Sep 20255110 AMAQI
27th Sep 20253211 AMAQI
27th Sep 20252212 PMAQI
27th Sep 2025191 PMAQI
27th Sep 2025132 PMAQI
27th Sep 2025143 PMAQI
27th Sep 2025184 PMAQI
27th Sep 2025155 PMAQI
27th Sep 2025126 PMAQI
27th Sep 2025147 PMAQI
27th Sep 2025298 PMAQI
27th Sep 2025529 PMAQI
27th Sep 20255710 PMAQI
27th Sep 20255511 PMAQI
28th Sep 20255212 AMAQI
28th Sep 2025541 AMAQI
28th Sep 2025532 AMAQI
28th Sep 2025533 AMAQI
28th Sep 2025504 AMAQI
28th Sep 2025385 AMAQI
28°C25/28°C
28th Sep 2025476 AMAQI
28th Sep 2025457 AMAQI
28th Sep 2025318 AMAQI
28th Sep 2025269 AMAQI
28th Sep 20252110 AMAQI
28th Sep 20251411 AMAQI
28th Sep 20251212 PMAQI
28th Sep 2025131 PMAQI
28th Sep 2025122 PMAQI
28th Sep 2025113 PMAQI
28th Sep 2025144 PMAQI
28th Sep 2025505 PMAQI
28th Sep 2025366 PMAQI
28th Sep 2025187 PMAQI
28th Sep 2025158 PMAQI
28th Sep 2025149 PMAQI
28th Sep 20251610 PMAQI
28th Sep 20251311 PMAQI
29th Sep 20251112 AMAQI
29th Sep 202581 AMAQI
29th Sep 202582 AMAQI
29th Sep 2025143 AMAQI
29th Sep 2025244 AMAQI
29th Sep 2025275 AMAQI
28°C27/29°C
29th Sep 2025256 AMAQI
29th Sep 2025217 AMAQI
29th Sep 2025158 AMAQI
29th Sep 2025109 AMAQI
29th Sep 20251210 AMAQI
29th Sep 20251211 AMAQI
29th Sep 20251512 PMAQI
29th Sep 2025141 PMAQI
29th Sep 2025122 PMAQI
29th Sep 2025163 PMAQI
29th Sep 2025184 PMAQI
29th Sep 2025155 PMAQI
29th Sep 2025126 PMAQI
29th Sep 2025157 PMAQI
29th Sep 2025198 PMAQI
29th Sep 2025189 PMAQI
29th Sep 20252110 PMAQI
29th Sep 20251711 PMAQI
30th Sep 20251812 AMAQI
30th Sep 2025321 AMAQI
30th Sep 2025182 AMAQI
30th Sep 2025213 AMAQI
30th Sep 2025124 AMAQI
30th Sep 2025105 AMAQI
28°C27/29°C
30th Sep 2025106 AMAQI
30th Sep 202587 AMAQI
30th Sep 2025118 AMAQI
30th Sep 2025169 AMAQI
30th Sep 20252210 AMAQI
30th Sep 20252211 AMAQI
30th Sep 20252312 PMAQI
30th Sep 2025221 PMAQI
30th Sep 2025252 PMAQI
30th Sep 2025233 PMAQI
30th Sep 2025204 PMAQI
30th Sep 2025265 PMAQI
30th Sep 2025226 PMAQI
30th Sep 2025227 PMAQI
30th Sep 2025158 PMAQI
30th Sep 2025129 PMAQI
30th Sep 20253810 PMAQI
30th Sep 20253111 PMAQI
1st Oct 20253612 AMAQI
--°C/°C
6 AM
12 PM
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM
45AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 PM
31AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 AM (Avg. 45), while the lowest AQI was between 3 PM to 3 PM (Avg. 31).
Night time
Avg. Highest Time
1 AM - 4 AM
46AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 9 PM
40AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 46), while the lowest AQI was between 7 PM to 9 PM (Avg. 40).
2025 Days Vs Air Quality
Ko Samui, Surat Thani, Thailand
2025
57%
154
43%
118
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Good
154 DaysModerate
118 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 57%
Health Risk Level:
Considerable
In 2025, 57% of 273 days were within WHO’s safe air quality limits, and 43% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Ko Samui, Surat Thani, Thailand
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
68AQI
68AQI
2nd January 2025
69AQI
69AQI
3rd January 2025
76AQI
76AQI
4th January 2025
81AQI
81AQI
5th January 2025
82AQI
82AQI
6th January 2025
83AQI
83AQI
7th January 2025
82AQI
82AQI
8th January 2025
93AQI
93AQI
9th January 2025
86AQI
86AQI
10th January 2025
76AQI
76AQI
11th January 2025
72AQI
72AQI
12th January 2025
70AQI
70AQI
13th January 2025
79AQI
79AQI
14th January 2025
81AQI
81AQI
15th January 2025
84AQI
84AQI
16th January 2025
64AQI
64AQI
17th January 2025
68AQI
68AQI
18th January 2025
75AQI
75AQI
19th January 2025
82AQI
82AQI
20th January 2025
84AQI
84AQI
21st January 2025
87AQI
87AQI
22nd January 2025
89AQI
89AQI
23rd January 2025
93AQI
93AQI
24th January 2025
94AQI
94AQI
25th January 2025
93AQI
93AQI
26th January 2025
82AQI
82AQI
27th January 2025
72AQI
72AQI
28th January 2025
77AQI
77AQI
29th January 2025
82AQI
82AQI
30th January 2025
85AQI
85AQI
31st January 2025
97AQI
97AQI
1st February 2025
88AQI
88AQI
2nd February 2025
92AQI
92AQI
3rd February 2025
83AQI
83AQI
4th February 2025
76AQI
76AQI
5th February 2025
76AQI
76AQI
6th February 2025
72AQI
72AQI
7th February 2025
79AQI
79AQI
8th February 2025
80AQI
80AQI
9th February 2025
75AQI
75AQI
10th February 2025
79AQI
79AQI
11th February 2025
82AQI
82AQI
12th February 2025
82AQI
82AQI
13th February 2025
84AQI
84AQI
14th February 2025
81AQI
81AQI
15th February 2025
93AQI
93AQI
16th February 2025
73AQI
73AQI
17th February 2025
73AQI
73AQI
18th February 2025
64AQI
64AQI
19th February 2025
60AQI
60AQI
20th February 2025
59AQI
59AQI
21st February 2025
62AQI
62AQI
22nd February 2025
57AQI
57AQI
23rd February 2025
58AQI
58AQI
24th February 2025
51AQI
51AQI
25th February 2025
58AQI
58AQI
26th February 2025
53AQI
53AQI
27th February 2025
62AQI
62AQI
28th February 2025
56AQI
56AQI
1st March 2025
62AQI
62AQI
2nd March 2025
57AQI
57AQI
3rd March 2025
62AQI
62AQI
4th March 2025
62AQI
62AQI
5th March 2025
61AQI
61AQI
6th March 2025
68AQI
68AQI
7th March 2025
61AQI
61AQI
8th March 2025
62AQI
62AQI
9th March 2025
67AQI
67AQI
10th March 2025
65AQI
65AQI
11th March 2025
62AQI
62AQI
12th March 2025
60AQI
60AQI
13th March 2025
53AQI
53AQI
14th March 2025
55AQI
55AQI
15th March 2025
62AQI
62AQI
16th March 2025
81AQI
81AQI
17th March 2025
66AQI
66AQI
18th March 2025
64AQI
64AQI
19th March 2025
64AQI
64AQI
20th March 2025
76AQI
76AQI
21st March 2025
79AQI
79AQI
22nd March 2025
86AQI
86AQI
23rd March 2025
83AQI
83AQI
24th March 2025
80AQI
80AQI
25th March 2025
84AQI
84AQI
26th March 2025
80AQI
80AQI
27th March 2025
77AQI
77AQI
28th March 2025
74AQI
74AQI
29th March 2025
80AQI
80AQI
30th March 2025
79AQI
79AQI
31st March 2025
70AQI
70AQI
1st April 2025
66AQI
66AQI
2nd April 2025
58AQI
58AQI
3rd April 2025
47AQI
47AQI
4th April 2025
46AQI
46AQI
5th April 2025
46AQI
46AQI
6th April 2025
49AQI
49AQI
7th April 2025
48AQI
48AQI
8th April 2025
55AQI
55AQI
9th April 2025
56AQI
56AQI
10th April 2025
52AQI
52AQI
11th April 2025
50AQI
50AQI
12th April 2025
41AQI
41AQI
13th April 2025
37AQI
37AQI
14th April 2025
37AQI
37AQI
15th April 2025
44AQI
44AQI
16th April 2025
39AQI
39AQI
17th April 2025
44AQI
44AQI
18th April 2025
33AQI
33AQI
19th April 2025
31AQI
31AQI
20th April 2025
31AQI
31AQI
21st April 2025
35AQI
35AQI
22nd April 2025
38AQI
38AQI
23rd April 2025
49AQI
49AQI
24th April 2025
45AQI
45AQI
25th April 2025
47AQI
47AQI
26th April 2025
39AQI
39AQI
27th April 2025
41AQI
41AQI
28th April 2025
39AQI
39AQI
29th April 2025
36AQI
36AQI
30th April 2025
42AQI
42AQI
1st May 2025
48AQI
48AQI
2nd May 2025
56AQI
56AQI
3rd May 2025
40AQI
40AQI
4th May 2025
41AQI
41AQI
5th May 2025
42AQI
42AQI
6th May 2025
39AQI
39AQI
7th May 2025
37AQI
37AQI
8th May 2025
40AQI
40AQI
9th May 2025
39AQI
39AQI
10th May 2025
38AQI
38AQI
11th May 2025
38AQI
38AQI
12th May 2025
38AQI
38AQI
13th May 2025
35AQI
35AQI
14th May 2025
38AQI
38AQI
15th May 2025
47AQI
47AQI
16th May 2025
49AQI
49AQI
17th May 2025
50AQI
50AQI
18th May 2025
45AQI
45AQI
19th May 2025
49AQI
49AQI
20th May 2025
43AQI
43AQI
21st May 2025
40AQI
40AQI
22nd May 2025
41AQI
41AQI
23rd May 2025
34AQI
34AQI
24th May 2025
32AQI
32AQI
25th May 2025
29AQI
29AQI
26th May 2025
30AQI
30AQI
27th May 2025
33AQI
33AQI
28th May 2025
36AQI
36AQI
29th May 2025
42AQI
42AQI
30th May 2025
50AQI
50AQI
31st May 2025
55AQI
55AQI
1st June 2025
56AQI
56AQI
2nd June 2025
49AQI
49AQI
3rd June 2025
46AQI
46AQI
4th June 2025
40AQI
40AQI
5th June 2025
35AQI
35AQI
6th June 2025
37AQI
37AQI
7th June 2025
33AQI
33AQI
8th June 2025
32AQI
32AQI
9th June 2025
36AQI
36AQI
10th June 2025
41AQI
41AQI
11th June 2025
37AQI
37AQI
12th June 2025
36AQI
36AQI
13th June 2025
38AQI
38AQI
14th June 2025
50AQI
50AQI
15th June 2025
51AQI
51AQI
16th June 2025
49AQI
49AQI
17th June 2025
41AQI
41AQI
18th June 2025
39AQI
39AQI
19th June 2025
38AQI
38AQI
20th June 2025
36AQI
36AQI
21st June 2025
33AQI
33AQI
22nd June 2025
26AQI
26AQI
23rd June 2025
29AQI
29AQI
24th June 2025
30AQI
30AQI
25th June 2025
39AQI
39AQI
26th June 2025
47AQI
47AQI
27th June 2025
48AQI
48AQI
28th June 2025
47AQI
47AQI
29th June 2025
47AQI
47AQI
30th June 2025
45AQI
45AQI
1st July 2025
46AQI
46AQI
2nd July 2025
40AQI
40AQI
3rd July 2025
40AQI
40AQI
4th July 2025
45AQI
45AQI
5th July 2025
45AQI
45AQI
6th July 2025
43AQI
43AQI
7th July 2025
42AQI
42AQI
8th July 2025
43AQI
43AQI
9th July 2025
42AQI
42AQI
10th July 2025
40AQI
40AQI
11th July 2025
39AQI
39AQI
12th July 2025
40AQI
40AQI
13th July 2025
42AQI
42AQI
14th July 2025
41AQI
41AQI
15th July 2025
39AQI
39AQI
16th July 2025
39AQI
39AQI
17th July 2025
40AQI
40AQI
18th July 2025
42AQI
42AQI
19th July 2025
42AQI
42AQI
20th July 2025
44AQI
44AQI
21st July 2025
42AQI
42AQI
22nd July 2025
42AQI
42AQI
23rd July 2025
40AQI
40AQI
24th July 2025
43AQI
43AQI
25th July 2025
46AQI
46AQI
26th July 2025
47AQI
47AQI
27th July 2025
48AQI
48AQI
28th July 2025
49AQI
49AQI
29th July 2025
49AQI
49AQI
30th July 2025
48AQI
48AQI
31st July 2025
50AQI
50AQI
1st August 2025
52AQI
52AQI
2nd August 2025
55AQI
55AQI
3rd August 2025
53AQI
53AQI
4th August 2025
53AQI
53AQI
5th August 2025
52AQI
52AQI
6th August 2025
55AQI
55AQI
7th August 2025
53AQI
53AQI
8th August 2025
49AQI
49AQI
9th August 2025
44AQI
44AQI
10th August 2025
41AQI
41AQI
11th August 2025
46AQI
46AQI
12th August 2025
47AQI
47AQI
13th August 2025
44AQI
44AQI
14th August 2025
47AQI
47AQI
15th August 2025
47AQI
47AQI
16th August 2025
45AQI
45AQI
17th August 2025
50AQI
50AQI
18th August 2025
54AQI
54AQI
19th August 2025
55AQI
55AQI
20th August 2025
57AQI
57AQI
21st August 2025
56AQI
56AQI
22nd August 2025
56AQI
56AQI
23rd August 2025
53AQI
53AQI
24th August 2025
52AQI
52AQI
25th August 2025
53AQI
53AQI
26th August 2025
54AQI
54AQI
27th August 2025
55AQI
55AQI
28th August 2025
52AQI
52AQI
29th August 2025
52AQI
52AQI
30th August 2025
50AQI
50AQI
31st August 2025
50AQI
50AQI
1st September 2025
50AQI
50AQI
2nd September 2025
49AQI
49AQI
3rd September 2025
49AQI
49AQI
4th September 2025
34AQI
34AQI
5th September 2025
46AQI
46AQI
6th September 2025
48AQI
48AQI
7th September 2025
46AQI
46AQI
8th September 2025
49AQI
49AQI
9th September 2025
47AQI
47AQI
10th September 2025
47AQI
47AQI
11th September 2025
47AQI
47AQI
12th September 2025
46AQI
46AQI
13th September 2025
47AQI
47AQI
14th September 2025
47AQI
47AQI
15th September 2025
43AQI
43AQI
16th September 2025
41AQI
41AQI
17th September 2025
41AQI
41AQI
18th September 2025
34AQI
34AQI
19th September 2025
32AQI
32AQI
20th September 2025
31AQI
31AQI
21st September 2025
32AQI
32AQI
22nd September 2025
38AQI
38AQI
23rd September 2025
38AQI
38AQI
24th September 2025
35AQI
35AQI
25th September 2025
31AQI
31AQI
26th September 2025
28AQI
28AQI
27th September 2025
39AQI
39AQI
28th September 2025
33AQI
33AQI
29th September 2025
15AQI
15AQI
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
81AQI
72AQI
69AQI
44AQI
41AQI
40AQI
43AQI
51AQI
40AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202553AQI
31
28
31
25
5
29
2
28
2
31
12
19
29
154
118
Highest AQI recorded in
January81AQI
Lowest AQI recorded in
September40AQI
202452AQI
1
16
1
1
4
8
18
12
16
15
20
8
2
1
10
3
23
7
2
29
96
101
Highest AQI recorded in
March84AQI
Lowest AQI recorded in
November44AQI
202365AQI
2
24
5
7
13
7
3
18
3
16
10
1
20
11
20
1
2
1
9
22
63
106
25
1
Highest AQI recorded in
April95AQI
Lowest AQI recorded in
June25AQI
202254AQI
2
10
5
11
19
21
26
Highest AQI recorded in
October83AQI
Lowest AQI recorded in
November44AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2023(Avg.)
65AQILeast Polluted Year Recorded
2024(Avg.)
52AQIKo Samui's annual 2025 AQI (53) shows an average percentage change of -4.7% (improved AQI) compared to previous years: 2022 (54), 2023 (65), 2024 (52).
