Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Land Environment And Resources Bureau, Haikou, Hainan, China 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

Land Environment And Resources Bureau, Haikou, Hainan, China

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
16th Sep 2022
115AQI
Lowest AQI recorded on
8th Sep 2022
11AQI

Same Day Analysis (19th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 26 of Good air quality, showing improvement over 2024 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 19th Sep - 20th Sep 2025

Land Environment And Resources Bureau, Haikou, Hainan, China

AQI
Day
Night
.

6 AM19th Sep 2025

6 PM

5 AM20th Sep 2025

Day time
Avg. Highest Time
6AM19th Sep

30AQI

Avg. Lowest Time
5PM19th Sep

16AQI

Night time
Avg. Highest Time
2AM20th Sep

33AQI

Avg. Lowest Time
7PM19th Sep

20AQI

In the last 24 hours,

Land Environment And Resources Bureau's AQI reached its highest point of 33 at 2 AM during the Night, while the lowest point, 16, was recorded at 5 PM during the Day between 19th Sep and 20th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025

Land Environment And Resources Bureau, Haikou, Hainan, China

AugSep
21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 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
Day
Night
21st Aug 2025376 AMAQI
21st Aug 2025367 AMAQI
21st Aug 2025268 AMAQI
21st Aug 2025279 AMAQI
21st Aug 20252810 AMAQI
21st Aug 20253111 AMAQI
21st Aug 20252912 PMAQI
21st Aug 2025371 PMAQI
21st Aug 2025342 PMAQI
21st Aug 2025333 PMAQI
21st Aug 2025304 PMAQI
21st Aug 2025345 PMAQI
21st Aug 2025266 PMAQI
21st Aug 2025297 PMAQI
21st Aug 2025368 PMAQI
21st Aug 2025379 PMAQI
21st Aug 20253610 PMAQI
21st Aug 20253311 PMAQI
22nd Aug 20253412 AMAQI
22nd Aug 2025401 AMAQI
22nd Aug 2025402 AMAQI
22nd Aug 2025383 AMAQI
22nd Aug 2025374 AMAQI
22nd Aug 2025385 AMAQI

27°C24/33°C

22nd Aug 2025376 AMAQI
22nd Aug 2025397 AMAQI
22nd Aug 2025318 AMAQI
22nd Aug 2025339 AMAQI
22nd Aug 20252610 AMAQI
22nd Aug 20253611 AMAQI
22nd Aug 20253512 PMAQI
22nd Aug 2025311 PMAQI
22nd Aug 2025282 PMAQI
22nd Aug 2025303 PMAQI
22nd Aug 2025284 PMAQI
22nd Aug 2025435 PMAQI
22nd Aug 2025386 PMAQI
22nd Aug 2025397 PMAQI
22nd Aug 2025408 PMAQI
22nd Aug 2025439 PMAQI
22nd Aug 20254310 PMAQI
22nd Aug 20253811 PMAQI
23rd Aug 20254012 AMAQI
23rd Aug 2025411 AMAQI
23rd Aug 2025402 AMAQI
23rd Aug 2025403 AMAQI
23rd Aug 2025394 AMAQI
23rd Aug 2025385 AMAQI

27°C24/33°C

23rd Aug 2025386 AMAQI
23rd Aug 2025367 AMAQI
23rd Aug 2025438 AMAQI
23rd Aug 2025299 AMAQI
23rd Aug 20253010 AMAQI
23rd Aug 20253811 AMAQI
23rd Aug 20254212 PMAQI
23rd Aug 2025421 PMAQI
23rd Aug 2025282 PMAQI
23rd Aug 2025293 PMAQI
23rd Aug 2025324 PMAQI
23rd Aug 2025305 PMAQI
23rd Aug 2025326 PMAQI
23rd Aug 2025447 PMAQI
23rd Aug 2025458 PMAQI
23rd Aug 2025499 PMAQI
23rd Aug 20254510 PMAQI
23rd Aug 20254411 PMAQI
24th Aug 20253912 AMAQI
24th Aug 2025401 AMAQI
24th Aug 2025432 AMAQI
24th Aug 2025403 AMAQI
24th Aug 2025404 AMAQI
24th Aug 2025405 AMAQI

27°C23/33°C

24th Aug 2025446 AMAQI
24th Aug 2025407 AMAQI
24th Aug 2025468 AMAQI
24th Aug 2025369 AMAQI
24th Aug 20253710 AMAQI
24th Aug 20254111 AMAQI
24th Aug 20253812 PMAQI
24th Aug 2025331 PMAQI
24th Aug 2025292 PMAQI
24th Aug 2025283 PMAQI
24th Aug 2025304 PMAQI
24th Aug 2025265 PMAQI
24th Aug 2025306 PMAQI
24th Aug 2025357 PMAQI
24th Aug 2025428 PMAQI
24th Aug 2025409 PMAQI
24th Aug 20254310 PMAQI
24th Aug 20254111 PMAQI
25th Aug 20253712 AMAQI
25th Aug 2025371 AMAQI
25th Aug 2025362 AMAQI
25th Aug 2025383 AMAQI
25th Aug 2025414 AMAQI
25th Aug 2025425 AMAQI

25°C24/27°C

25th Aug 2025406 AMAQI
25th Aug 2025397 AMAQI
25th Aug 2025328 AMAQI
25th Aug 2025269 AMAQI
25th Aug 20252510 AMAQI
25th Aug 20253211 AMAQI
25th Aug 20253412 PMAQI
25th Aug 2025401 PMAQI
25th Aug 2025302 PMAQI
25th Aug 2025303 PMAQI
25th Aug 2025354 PMAQI
25th Aug 2025365 PMAQI
25th Aug 2025296 PMAQI
25th Aug 2025307 PMAQI
25th Aug 2025348 PMAQI
25th Aug 2025339 PMAQI
25th Aug 20253710 PMAQI
25th Aug 20253311 PMAQI
26th Aug 20253712 AMAQI
26th Aug 2025381 AMAQI
26th Aug 2025422 AMAQI
26th Aug 2025403 AMAQI
26th Aug 2025384 AMAQI
26th Aug 2025395 AMAQI

25°C23/27°C

26th Aug 2025406 AMAQI
26th Aug 2025397 AMAQI
26th Aug 2025328 AMAQI
26th Aug 2025479 AMAQI
26th Aug 20255310 AMAQI
26th Aug 20254111 AMAQI
26th Aug 20254112 PMAQI
26th Aug 2025381 PMAQI
26th Aug 2025302 PMAQI
26th Aug 2025453 PMAQI
26th Aug 2025284 PMAQI
26th Aug 2025285 PMAQI
26th Aug 2025326 PMAQI
26th Aug 2025377 PMAQI
26th Aug 2025438 PMAQI
26th Aug 2025409 PMAQI
26th Aug 20253410 PMAQI
26th Aug 20253511 PMAQI
27th Aug 20254412 AMAQI
27th Aug 2025391 AMAQI
27th Aug 2025412 AMAQI
27th Aug 2025393 AMAQI
27th Aug 2025404 AMAQI
27th Aug 2025405 AMAQI

26°C24/29°C

27th Aug 2025416 AMAQI
27th Aug 2025407 AMAQI
27th Aug 2025378 AMAQI
27th Aug 2025379 AMAQI
27th Aug 20255210 AMAQI
27th Aug 20255411 AMAQI
27th Aug 20255412 PMAQI
27th Aug 2025281 PMAQI
27th Aug 2025332 PMAQI
27th Aug 2025233 PMAQI
27th Aug 2025284 PMAQI
27th Aug 2025265 PMAQI
27th Aug 2025256 PMAQI
27th Aug 2025377 PMAQI
27th Aug 2025388 PMAQI
27th Aug 2025409 PMAQI
27th Aug 20253510 PMAQI
27th Aug 20254211 PMAQI
28th Aug 20254612 AMAQI
28th Aug 2025401 AMAQI
28th Aug 2025392 AMAQI
28th Aug 2025403 AMAQI
28th Aug 2025424 AMAQI
28th Aug 2025405 AMAQI

26°C24/30°C

28th Aug 2025416 AMAQI
28th Aug 2025417 AMAQI
28th Aug 2025408 AMAQI
28th Aug 2025499 AMAQI
28th Aug 20254410 AMAQI
28th Aug 20254311 AMAQI
28th Aug 20254612 PMAQI
28th Aug 2025341 PMAQI
28th Aug 2025422 PMAQI
28th Aug 2025423 PMAQI
28th Aug 2025504 PMAQI
28th Aug 2025445 PMAQI
28th Aug 2025396 PMAQI
28th Aug 2025377 PMAQI
28th Aug 2025368 PMAQI
28th Aug 2025319 PMAQI
28th Aug 20253810 PMAQI
28th Aug 20253611 PMAQI
29th Aug 20253112 AMAQI
29th Aug 2025471 AMAQI
29th Aug 2025472 AMAQI
29th Aug 2025443 AMAQI
29th Aug 2025464 AMAQI
29th Aug 2025465 AMAQI

26°C23/31°C

29th Aug 2025476 AMAQI
29th Aug 2025477 AMAQI
29th Aug 2025548 AMAQI
29th Aug 2025309 AMAQI
29th Aug 20254310 AMAQI
29th Aug 20253611 AMAQI
29th Aug 20253812 PMAQI
29th Aug 2025321 PMAQI
29th Aug 2025462 PMAQI
29th Aug 2025373 PMAQI
29th Aug 2025464 PMAQI
29th Aug 2025435 PMAQI
29th Aug 2025486 PMAQI
29th Aug 2025517 PMAQI
29th Aug 2025478 PMAQI
29th Aug 2025429 PMAQI
29th Aug 20253810 PMAQI
29th Aug 20254011 PMAQI
30th Aug 20253712 AMAQI
30th Aug 2025481 AMAQI
30th Aug 2025482 AMAQI
30th Aug 2025483 AMAQI
30th Aug 2025444 AMAQI
30th Aug 2025455 AMAQI

25°C24/27°C

30th Aug 2025446 AMAQI
30th Aug 2025467 AMAQI
30th Aug 2025298 AMAQI
30th Aug 2025279 AMAQI
30th Aug 20252610 AMAQI
30th Aug 20252611 AMAQI
30th Aug 20252912 PMAQI
30th Aug 2025321 PMAQI
30th Aug 2025262 PMAQI
30th Aug 2025303 PMAQI
30th Aug 2025284 PMAQI
30th Aug 2025255 PMAQI
30th Aug 2025376 PMAQI
30th Aug 2025417 PMAQI
30th Aug 2025418 PMAQI
30th Aug 2025369 PMAQI
30th Aug 20253610 PMAQI
30th Aug 20253511 PMAQI
31st Aug 20253812 AMAQI
31st Aug 2025401 AMAQI
31st Aug 2025502 AMAQI
31st Aug 2025443 AMAQI
31st Aug 2025414 AMAQI
31st Aug 2025445 AMAQI

26°C25/28°C

31st Aug 2025436 AMAQI
31st Aug 2025427 AMAQI
31st Aug 2025338 AMAQI
31st Aug 2025309 AMAQI
31st Aug 20253610 AMAQI
31st Aug 20253211 AMAQI
31st Aug 20253312 PMAQI
31st Aug 2025311 PMAQI
31st Aug 2025322 PMAQI
31st Aug 2025403 PMAQI
31st Aug 2025324 PMAQI
31st Aug 2025305 PMAQI
31st Aug 2025246 PMAQI
31st Aug 2025397 PMAQI
31st Aug 2025348 PMAQI
31st Aug 2025359 PMAQI
31st Aug 20254510 PMAQI
31st Aug 20254411 PMAQI
1st Sep 20253012 AMAQI
1st Sep 2025391 AMAQI
1st Sep 2025452 AMAQI
1st Sep 2025443 AMAQI
1st Sep 2025414 AMAQI
1st Sep 2025445 AMAQI

26°C24/30°C

1st Sep 2025496 AMAQI
1st Sep 2025497 AMAQI
1st Sep 2025188 AMAQI
1st Sep 2025249 AMAQI
1st Sep 20252410 AMAQI
1st Sep 20252811 AMAQI
1st Sep 20252012 PMAQI
1st Sep 2025361 PMAQI
1st Sep 2025232 PMAQI
1st Sep 2025203 PMAQI
1st Sep 2025204 PMAQI
1st Sep 2025285 PMAQI
1st Sep 2025306 PMAQI
1st Sep 2025317 PMAQI
1st Sep 2025438 PMAQI
1st Sep 2025429 PMAQI
1st Sep 20254010 PMAQI
1st Sep 20255011 PMAQI
2nd Sep 20254312 AMAQI
2nd Sep 2025441 AMAQI
2nd Sep 2025422 AMAQI
2nd Sep 2025423 AMAQI
2nd Sep 2025404 AMAQI
2nd Sep 2025405 AMAQI

26°C24/30°C

2nd Sep 2025416 AMAQI
2nd Sep 2025457 AMAQI
2nd Sep 2025388 AMAQI
2nd Sep 2025469 AMAQI
2nd Sep 20253310 AMAQI
2nd Sep 20253511 AMAQI
2nd Sep 20251812 PMAQI
2nd Sep 2025241 PMAQI
2nd Sep 2025282 PMAQI
2nd Sep 2025253 PMAQI
2nd Sep 2025324 PMAQI
2nd Sep 2025355 PMAQI
2nd Sep 2025366 PMAQI
2nd Sep 2025397 PMAQI
2nd Sep 2025478 PMAQI
2nd Sep 2025399 PMAQI
2nd Sep 20253610 PMAQI
2nd Sep 20254211 PMAQI
3rd Sep 20254712 AMAQI
3rd Sep 2025411 AMAQI
3rd Sep 2025492 AMAQI
3rd Sep 2025483 AMAQI
3rd Sep 2025484 AMAQI
3rd Sep 2025415 AMAQI

27°C24/32°C

3rd Sep 2025456 AMAQI
3rd Sep 2025427 AMAQI
3rd Sep 2025358 AMAQI
3rd Sep 2025379 AMAQI
3rd Sep 20253010 AMAQI
3rd Sep 20253411 AMAQI
3rd Sep 20252812 PMAQI
3rd Sep 2025261 PMAQI
3rd Sep 2025292 PMAQI
3rd Sep 2025293 PMAQI
3rd Sep 2025244 PMAQI
3rd Sep 2025275 PMAQI
3rd Sep 2025336 PMAQI
3rd Sep 2025377 PMAQI
3rd Sep 2025428 PMAQI
3rd Sep 2025469 PMAQI
3rd Sep 20254810 PMAQI
3rd Sep 20254411 PMAQI
4th Sep 20254112 AMAQI
4th Sep 2025451 AMAQI
4th Sep 2025442 AMAQI
4th Sep 2025433 AMAQI
4th Sep 2025424 AMAQI
4th Sep 2025435 AMAQI

27°C24/33°C

4th Sep 2025406 AMAQI
4th Sep 2025417 AMAQI
4th Sep 2025418 AMAQI
4th Sep 2025469 AMAQI
4th Sep 20254710 AMAQI
4th Sep 20255111 AMAQI
4th Sep 20252912 PMAQI
4th Sep 2025321 PMAQI
4th Sep 2025312 PMAQI
4th Sep 2025263 PMAQI
4th Sep 2025224 PMAQI
4th Sep 2025285 PMAQI
4th Sep 2025276 PMAQI
4th Sep 2025157 PMAQI
4th Sep 2025158 PMAQI
4th Sep 2025169 PMAQI
4th Sep 20251110 PMAQI
4th Sep 20251311 PMAQI
5th Sep 20253112 AMAQI
5th Sep 2025371 AMAQI
5th Sep 2025382 AMAQI
5th Sep 2025393 AMAQI
5th Sep 2025394 AMAQI
5th Sep 2025435 AMAQI

27°C24/31°C

5th Sep 2025416 AMAQI
5th Sep 2025407 AMAQI
5th Sep 2025418 AMAQI
5th Sep 2025489 AMAQI
5th Sep 20253010 AMAQI
5th Sep 20252611 AMAQI
5th Sep 20252812 PMAQI
5th Sep 2025301 PMAQI
5th Sep 2025372 PMAQI
5th Sep 2025353 PMAQI
5th Sep 2025244 PMAQI
5th Sep 2025285 PMAQI
5th Sep 2025366 PMAQI
5th Sep 2025307 PMAQI
5th Sep 2025318 PMAQI
5th Sep 2025369 PMAQI
5th Sep 20253710 PMAQI
5th Sep 20253611 PMAQI
6th Sep 20253212 AMAQI
6th Sep 2025361 AMAQI
6th Sep 2025352 AMAQI
6th Sep 2025363 AMAQI
6th Sep 2025384 AMAQI
6th Sep 2025385 AMAQI

27°C24/31°C

6th Sep 2025366 AMAQI
6th Sep 2025367 AMAQI
6th Sep 2025258 AMAQI
6th Sep 2025269 AMAQI
6th Sep 20253810 AMAQI
6th Sep 20253311 AMAQI
6th Sep 20253112 PMAQI
6th Sep 2025311 PMAQI
6th Sep 2025212 PMAQI
6th Sep 2025263 PMAQI
6th Sep 2025274 PMAQI
6th Sep 2025275 PMAQI
6th Sep 2025266 PMAQI
6th Sep 2025277 PMAQI
6th Sep 2025328 PMAQI
6th Sep 2025479 PMAQI
6th Sep 20253610 PMAQI
6th Sep 20254011 PMAQI
7th Sep 20254412 AMAQI
7th Sep 2025381 AMAQI
7th Sep 2025362 AMAQI
7th Sep 2025423 AMAQI
7th Sep 2025374 AMAQI
7th Sep 2025365 AMAQI

27°C24/33°C

7th Sep 2025386 AMAQI
7th Sep 2025387 AMAQI
7th Sep 2025478 AMAQI
7th Sep 2025449 AMAQI
7th Sep 20254110 AMAQI
7th Sep 20254211 AMAQI
7th Sep 20254612 PMAQI
7th Sep 2025551 PMAQI
7th Sep 2025562 PMAQI
7th Sep 2025543 PMAQI
7th Sep 2025524 PMAQI
7th Sep 2025505 PMAQI
7th Sep 2025536 PMAQI
7th Sep 2025507 PMAQI
7th Sep 2025528 PMAQI
7th Sep 2025509 PMAQI
7th Sep 20254810 PMAQI
7th Sep 20254611 PMAQI
8th Sep 20254612 AMAQI
8th Sep 2025391 AMAQI
8th Sep 2025382 AMAQI
8th Sep 2025403 AMAQI
8th Sep 2025414 AMAQI
8th Sep 2025405 AMAQI

27°C24/30°C

8th Sep 2025426 AMAQI
8th Sep 2025397 AMAQI
8th Sep 2025388 AMAQI
8th Sep 2025389 AMAQI
8th Sep 20254010 AMAQI
8th Sep 20254211 AMAQI
8th Sep 20253412 PMAQI
8th Sep 2025381 PMAQI
8th Sep 2025422 PMAQI
8th Sep 2025323 PMAQI
8th Sep 2025354 PMAQI
8th Sep 2025305 PMAQI
8th Sep 2025336 PMAQI
8th Sep 2025457 PMAQI
8th Sep 2025488 PMAQI
8th Sep 2025519 PMAQI
8th Sep 20255410 PMAQI
8th Sep 20255011 PMAQI
9th Sep 20254212 AMAQI
9th Sep 2025421 AMAQI
9th Sep 2025412 AMAQI
9th Sep 2025433 AMAQI
9th Sep 2025434 AMAQI
9th Sep 2025405 AMAQI

26°C24/30°C

9th Sep 2025406 AMAQI
9th Sep 2025417 AMAQI
9th Sep 2025288 AMAQI
9th Sep 2025289 AMAQI
9th Sep 20253510 AMAQI
9th Sep 20253411 AMAQI
9th Sep 20253012 PMAQI
9th Sep 2025341 PMAQI
9th Sep 2025282 PMAQI
9th Sep 2025293 PMAQI
9th Sep 2025224 PMAQI
9th Sep 2025275 PMAQI
9th Sep 2025356 PMAQI
9th Sep 2025367 PMAQI
9th Sep 2025388 PMAQI
9th Sep 2025359 PMAQI
9th Sep 20253110 PMAQI
9th Sep 20253511 PMAQI
10th Sep 20254012 AMAQI
10th Sep 2025411 AMAQI
10th Sep 2025422 AMAQI
10th Sep 2025423 AMAQI
10th Sep 2025394 AMAQI
10th Sep 2025395 AMAQI

27°C24/33°C

10th Sep 2025386 AMAQI
10th Sep 2025387 AMAQI
10th Sep 2025228 AMAQI
10th Sep 2025329 AMAQI
10th Sep 20253410 AMAQI
10th Sep 20253911 AMAQI
10th Sep 20252912 PMAQI
10th Sep 2025271 PMAQI
10th Sep 2025332 PMAQI
10th Sep 2025293 PMAQI
10th Sep 2025284 PMAQI
10th Sep 2025245 PMAQI
10th Sep 2025266 PMAQI
10th Sep 2025347 PMAQI
10th Sep 2025408 PMAQI
10th Sep 2025379 PMAQI
10th Sep 20253710 PMAQI
10th Sep 20253611 PMAQI
11th Sep 20254012 AMAQI
11th Sep 2025411 AMAQI
11th Sep 2025432 AMAQI
11th Sep 2025403 AMAQI
11th Sep 2025384 AMAQI
11th Sep 2025375 AMAQI

26°C24/29°C

11th Sep 2025376 AMAQI
11th Sep 2025377 AMAQI
11th Sep 2025288 AMAQI
11th Sep 2025299 AMAQI
11th Sep 20252910 AMAQI
11th Sep 20253311 AMAQI
11th Sep 20252512 PMAQI
11th Sep 2025291 PMAQI
11th Sep 2025372 PMAQI
11th Sep 2025243 PMAQI
11th Sep 2025274 PMAQI
11th Sep 2025245 PMAQI
11th Sep 2025346 PMAQI
11th Sep 2025347 PMAQI
11th Sep 2025328 PMAQI
11th Sep 2025329 PMAQI
11th Sep 20252910 PMAQI
11th Sep 20253011 PMAQI
12th Sep 20253412 AMAQI
12th Sep 2025431 AMAQI
12th Sep 2025422 AMAQI
12th Sep 2025373 AMAQI
12th Sep 2025364 AMAQI
12th Sep 2025375 AMAQI

27°C23/33°C

12th Sep 2025386 AMAQI
12th Sep 2025367 AMAQI
12th Sep 2025358 AMAQI
12th Sep 2025339 AMAQI
12th Sep 20252610 AMAQI
12th Sep 20253011 AMAQI
12th Sep 20252412 PMAQI
12th Sep 2025251 PMAQI
12th Sep 2025222 PMAQI
12th Sep 2025223 PMAQI
12th Sep 2025234 PMAQI
12th Sep 2025335 PMAQI
12th Sep 2025296 PMAQI
12th Sep 2025337 PMAQI
12th Sep 2025378 PMAQI
12th Sep 2025369 PMAQI
12th Sep 20253310 PMAQI
12th Sep 20253511 PMAQI
13th Sep 20253712 AMAQI
13th Sep 2025381 AMAQI
13th Sep 2025372 AMAQI
13th Sep 2025363 AMAQI
13th Sep 2025354 AMAQI
13th Sep 2025355 AMAQI

27°C23/32°C

13th Sep 2025346 AMAQI
13th Sep 2025347 AMAQI
13th Sep 2025388 AMAQI
13th Sep 2025429 AMAQI
13th Sep 20253710 AMAQI
13th Sep 20252711 AMAQI
13th Sep 20252812 PMAQI
13th Sep 2025291 PMAQI
13th Sep 2025262 PMAQI
13th Sep 2025303 PMAQI
13th Sep 2025244 PMAQI
13th Sep 2025225 PMAQI
13th Sep 2025286 PMAQI
13th Sep 2025427 PMAQI
13th Sep 2025428 PMAQI
13th Sep 2025419 PMAQI
13th Sep 20253810 PMAQI
13th Sep 20253411 PMAQI
14th Sep 20253612 AMAQI
14th Sep 2025361 AMAQI
14th Sep 2025372 AMAQI
14th Sep 2025343 AMAQI
14th Sep 2025354 AMAQI
14th Sep 2025355 AMAQI

26°C24/30°C

14th Sep 2025346 AMAQI
14th Sep 2025367 AMAQI
14th Sep 2025308 AMAQI
14th Sep 2025249 AMAQI
14th Sep 20252610 AMAQI
14th Sep 20253211 AMAQI
14th Sep 20252812 PMAQI
14th Sep 2025241 PMAQI
14th Sep 2025262 PMAQI
14th Sep 2025263 PMAQI
14th Sep 2025244 PMAQI
14th Sep 2025245 PMAQI
14th Sep 2025206 PMAQI
14th Sep 2025277 PMAQI
14th Sep 2025328 PMAQI
14th Sep 2025389 PMAQI
14th Sep 20253410 PMAQI
14th Sep 20253011 PMAQI
15th Sep 20253012 AMAQI
15th Sep 2025351 AMAQI
15th Sep 2025362 AMAQI
15th Sep 2025333 AMAQI
15th Sep 2025334 AMAQI
15th Sep 2025345 AMAQI

27°C24/32°C

15th Sep 2025346 AMAQI
15th Sep 2025337 AMAQI
15th Sep 2025368 AMAQI
15th Sep 2025379 AMAQI
15th Sep 20253810 AMAQI
15th Sep 20253911 AMAQI
15th Sep 20251912 PMAQI
15th Sep 2025221 PMAQI
15th Sep 2025202 PMAQI
15th Sep 2025213 PMAQI
15th Sep 2025224 PMAQI
15th Sep 2025205 PMAQI
15th Sep 2025206 PMAQI
15th Sep 2025227 PMAQI
15th Sep 2025318 PMAQI
15th Sep 2025349 PMAQI
15th Sep 20253210 PMAQI
15th Sep 20253011 PMAQI
16th Sep 20253112 AMAQI
16th Sep 2025331 AMAQI
16th Sep 2025342 AMAQI
16th Sep 2025323 AMAQI
16th Sep 2025324 AMAQI
16th Sep 2025335 AMAQI

26°C23/32°C

16th Sep 2025336 AMAQI
16th Sep 2025337 AMAQI
16th Sep 2025338 AMAQI
16th Sep 2025359 AMAQI
16th Sep 20253310 AMAQI
16th Sep 20252611 AMAQI
16th Sep 20252412 PMAQI
16th Sep 2025251 PMAQI
16th Sep 2025202 PMAQI
16th Sep 2025183 PMAQI
16th Sep 2025194 PMAQI
16th Sep 2025285 PMAQI
16th Sep 2025156 PMAQI
16th Sep 2025217 PMAQI
16th Sep 2025238 PMAQI
16th Sep 2025259 PMAQI
16th Sep 20253510 PMAQI
16th Sep 20252711 PMAQI
17th Sep 20252812 AMAQI
17th Sep 2025331 AMAQI
17th Sep 2025332 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025324 AMAQI
17th Sep 2025325 AMAQI

26°C24/30°C

17th Sep 2025326 AMAQI
17th Sep 2025327 AMAQI
17th Sep 2025208 AMAQI
17th Sep 2025179 AMAQI
17th Sep 20252210 AMAQI
17th Sep 20252011 AMAQI
17th Sep 20252612 PMAQI
17th Sep 2025201 PMAQI
17th Sep 2025232 PMAQI
17th Sep 2025223 PMAQI
17th Sep 2025324 PMAQI
17th Sep 2025245 PMAQI
17th Sep 2025276 PMAQI
17th Sep 2025297 PMAQI
17th Sep 2025298 PMAQI
17th Sep 2025259 PMAQI
17th Sep 20252510 PMAQI
17th Sep 20252411 PMAQI
18th Sep 20252712 AMAQI
18th Sep 2025311 AMAQI
18th Sep 2025332 AMAQI
18th Sep 2025323 AMAQI
18th Sep 2025314 AMAQI
18th Sep 2025315 AMAQI

26°C24/30°C

18th Sep 2025306 AMAQI
18th Sep 2025317 AMAQI
18th Sep 2025248 AMAQI
18th Sep 2025279 AMAQI
18th Sep 20252210 AMAQI
18th Sep 20252511 AMAQI
18th Sep 20252412 PMAQI
18th Sep 2025181 PMAQI
18th Sep 2025212 PMAQI
18th Sep 2025283 PMAQI
18th Sep 2025254 PMAQI
18th Sep 2025225 PMAQI
18th Sep 2025276 PMAQI
18th Sep 2025287 PMAQI
18th Sep 2025278 PMAQI
18th Sep 2025289 PMAQI
18th Sep 20252610 PMAQI
18th Sep 20252411 PMAQI
19th Sep 20252612 AMAQI
19th Sep 2025241 AMAQI
19th Sep 2025322 AMAQI
19th Sep 2025313 AMAQI
19th Sep 2025314 AMAQI
19th Sep 2025305 AMAQI

26°C24/29°C

19th Sep 2025306 AMAQI
19th Sep 2025307 AMAQI
19th Sep 2025208 AMAQI
19th Sep 2025189 AMAQI
19th Sep 20251910 AMAQI
19th Sep 20251911 AMAQI
19th Sep 20252812 PMAQI
19th Sep 2025281 PMAQI
19th Sep 2025262 PMAQI
19th Sep 2025243 PMAQI
19th Sep 2025224 PMAQI
19th Sep 2025165 PMAQI
19th Sep 2025186 PMAQI
19th Sep 2025207 PMAQI
19th Sep 2025248 PMAQI
19th Sep 2025269 PMAQI
19th Sep 20252610 PMAQI
19th Sep 20253011 PMAQI
20th Sep 20253112 AMAQI
20th Sep 2025321 AMAQI
20th Sep 2025332 AMAQI
20th Sep 2025333 AMAQI
20th Sep 2025324 AMAQI
20th Sep 2025325 AMAQI

27°C24/32°C

20th Sep 2025326 AMAQI
6 AM
20th Sep 2025307 AMAQI
20th Sep 2025278 AMAQI
20th Sep 2025199 AMAQI
20th Sep 20252010 AMAQI
20th Sep 20252111 AMAQI
20th Sep 20252112 PMAQI
12 PM
20th Sep 2025231 PMAQI
20th Sep 2025322 PMAQI
20th Sep 2025323 PMAQI
20th Sep 2025324 PMAQI
20th Sep 2025355 PMAQI
20th Sep 2025366 PMAQI
6 PM
20th Sep 2025427 PMAQI
20th Sep 2025438 PMAQI
20th Sep 2025419 PMAQI
20th Sep 20254010 PMAQI
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 7 AM

39AQI

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

29AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 39), while the lowest AQI was between 4 PM to 4 PM (Avg. 29).
Night time
Avg. Highest Time
1 AM - 5 AM

39AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
7 PM

34AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 5 AM (Avg. 39), while the lowest AQI was between 7 PM to 7 PM (Avg. 34).

2025 Days Vs Air Quality

Land Environment And Resources Bureau, Haikou, Hainan, China

2025

51%

134

45%

118

4%

10

Total number of days with different AQI categories in last 263 days in 2025 (102 days remaining)

Good
134 Days
Moderate
118 Days
Poor
10 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 51%

Health Risk Level:

Considerable

In 2025, 51% of 263 days were within WHO’s safe air quality limits, and 49% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.

Annual Air Quality Insights

Land Environment And Resources Bureau, Haikou, Hainan, China

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
120AQI
2nd January 2025
107AQI
3rd January 2025
110AQI
4th January 2025
93AQI
5th January 2025
108AQI
6th January 2025
113AQI
7th January 2025
90AQI
8th January 2025
89AQI
9th January 2025
115AQI
10th January 2025
115AQI
11th January 2025
99AQI
12th January 2025
86AQI
13th January 2025
80AQI
14th January 2025
76AQI
15th January 2025
85AQI
16th January 2025
96AQI
17th January 2025
95AQI
18th January 2025
87AQI
19th January 2025
99AQI
20th January 2025
98AQI
21st January 2025
84AQI
22nd January 2025
92AQI
23rd January 2025
82AQI
24th January 2025
62AQI
25th January 2025
61AQI
26th January 2025
57AQI
27th January 2025
61AQI
28th January 2025
63AQI
29th January 2025
72AQI
30th January 2025
66AQI
31st January 2025
63AQI
1st February 2025
50AQI
2nd February 2025
49AQI
3rd February 2025
64AQI
4th February 2025
49AQI
5th February 2025
59AQI
6th February 2025
60AQI
7th February 2025
74AQI
8th February 2025
59AQI
9th February 2025
68AQI
10th February 2025
59AQI
11th February 2025
56AQI
12th February 2025
45AQI
13th February 2025
67AQI
14th February 2025
49AQI
15th February 2025
68AQI
16th February 2025
43AQI
17th February 2025
62AQI
18th February 2025
72AQI
19th February 2025
71AQI
20th February 2025
64AQI
21st February 2025
61AQI
22nd February 2025
46AQI
23rd February 2025
54AQI
24th February 2025
50AQI
25th February 2025
51AQI
26th February 2025
65AQI
27th February 2025
62AQI
28th February 2025
55AQI
1st March 2025
52AQI
2nd March 2025
56AQI
3rd March 2025
64AQI
4th March 2025
61AQI
5th March 2025
54AQI
6th March 2025
35AQI
7th March 2025
44AQI
8th March 2025
40AQI
9th March 2025
61AQI
10th March 2025
60AQI
11th March 2025
54AQI
12th March 2025
44AQI
13th March 2025
42AQI
14th March 2025
37AQI
15th March 2025
61AQI
16th March 2025
55AQI
17th March 2025
66AQI
18th March 2025
71AQI
19th March 2025
85AQI
20th March 2025
78AQI
21st March 2025
84AQI
22nd March 2025
78AQI
23rd March 2025
76AQI
24th March 2025
74AQI
25th March 2025
83AQI
26th March 2025
79AQI
27th March 2025
81AQI
28th March 2025
72AQI
29th March 2025
56AQI
30th March 2025
39AQI
31st March 2025
38AQI
1st April 2025
45AQI
2nd April 2025
65AQI
3rd April 2025
59AQI
4th April 2025
59AQI
5th April 2025
60AQI
6th April 2025
47AQI
7th April 2025
64AQI
8th April 2025
55AQI
9th April 2025
66AQI
10th April 2025
70AQI
11th April 2025
69AQI
12th April 2025
67AQI
13th April 2025
137AQI
14th April 2025
131AQI
15th April 2025
126AQI
16th April 2025
99AQI
17th April 2025
95AQI
18th April 2025
75AQI
19th April 2025
61AQI
20th April 2025
65AQI
21st April 2025
61AQI
22nd April 2025
66AQI
23rd April 2025
58AQI
24th April 2025
64AQI
25th April 2025
61AQI
26th April 2025
56AQI
27th April 2025
54AQI
28th April 2025
57AQI
29th April 2025
56AQI
30th April 2025
52AQI
1st May 2025
53AQI
2nd May 2025
58AQI
3rd May 2025
59AQI
4th May 2025
61AQI
5th May 2025
54AQI
6th May 2025
60AQI
7th May 2025
61AQI
8th May 2025
56AQI
9th May 2025
56AQI
10th May 2025
51AQI
11th May 2025
57AQI
12th May 2025
61AQI
13th May 2025
56AQI
14th May 2025
50AQI
15th May 2025
37AQI
16th May 2025
34AQI
17th May 2025
38AQI
18th May 2025
38AQI
19th May 2025
39AQI
20th May 2025
41AQI
21st May 2025
41AQI
22nd May 2025
37AQI
23rd May 2025
35AQI
24th May 2025
35AQI
25th May 2025
43AQI
26th May 2025
65AQI
27th May 2025
53AQI
28th May 2025
45AQI
29th May 2025
48AQI
30th May 2025
49AQI
31st May 2025
39AQI
1st June 2025
39AQI
2nd June 2025
40AQI
3rd June 2025
49AQI
4th June 2025
54AQI
5th June 2025
45AQI
6th June 2025
41AQI
7th June 2025
44AQI
8th June 2025
49AQI
9th June 2025
53AQI
10th June 2025
51AQI
11th June 2025
41AQI
12th June 2025
33AQI
13th June 2025
34AQI
14th June 2025
34AQI
15th June 2025
34AQI
16th June 2025
37AQI
17th June 2025
39AQI
18th June 2025
36AQI
19th June 2025
35AQI
20th June 2025
33AQI
21st June 2025
34AQI
22nd June 2025
37AQI
23rd June 2025
31AQI
24th June 2025
29AQI
25th June 2025
29AQI
26th June 2025
26AQI
27th June 2025
26AQI
28th June 2025
25AQI
29th June 2025
25AQI
30th June 2025
26AQI
1st July 2025
26AQI
2nd July 2025
27AQI
3rd July 2025
26AQI
4th July 2025
27AQI
5th July 2025
30AQI
6th July 2025
32AQI
7th July 2025
30AQI
8th July 2025
34AQI
9th July 2025
38AQI
10th July 2025
41AQI
11th July 2025
48AQI
12th July 2025
41AQI
13th July 2025
43AQI
14th July 2025
44AQI
15th July 2025
50AQI
16th July 2025
48AQI
17th July 2025
46AQI
18th July 2025
47AQI
19th July 2025
42AQI
20th July 2025
37AQI
21st July 2025
33AQI
22nd July 2025
31AQI
23rd July 2025
31AQI
24th July 2025
32AQI
25th July 2025
34AQI
26th July 2025
35AQI
27th July 2025
35AQI
28th July 2025
32AQI
29th July 2025
32AQI
30th July 2025
34AQI
31st July 2025
44AQI
1st August 2025
55AQI
2nd August 2025
53AQI
3rd August 2025
55AQI
4th August 2025
56AQI
5th August 2025
55AQI
6th August 2025
53AQI
7th August 2025
51AQI
8th August 2025
50AQI
9th August 2025
51AQI
10th August 2025
48AQI
11th August 2025
47AQI
12th August 2025
48AQI
13th August 2025
47AQI
14th August 2025
40AQI
15th August 2025
36AQI
16th August 2025
35AQI
17th August 2025
33AQI
18th August 2025
31AQI
19th August 2025
36AQI
20th August 2025
36AQI
21st August 2025
34AQI
22nd August 2025
37AQI
23rd August 2025
38AQI
24th August 2025
38AQI
25th August 2025
35AQI
26th August 2025
38AQI
27th August 2025
38AQI
28th August 2025
40AQI
29th August 2025
43AQI
30th August 2025
37AQI
31st August 2025
38AQI
1st September 2025
36AQI
2nd September 2025
38AQI
3rd September 2025
39AQI
4th September 2025
30AQI
5th September 2025
34AQI
6th September 2025
33AQI
7th September 2025
45AQI
8th September 2025
41AQI
9th September 2025
36AQI
10th September 2025
35AQI
11th September 2025
33AQI
12th September 2025
33AQI
13th September 2025
34AQI
14th September 2025
31AQI
15th September 2025
30AQI
16th September 2025
28AQI
17th September 2025
27AQI
18th September 2025
27AQI
19th September 2025
26AQI
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
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

88AQI

58AQI

61AQI

70AQI

49AQI

37AQI

36AQI

43AQI

33AQI

No. of days

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

202554AQI

24
7
8
20
8
23
2
25
3
16
15
27
3
31
23
8
19
134
118
10

Highest AQI recorded in

January

88AQI

Lowest AQI recorded in

September

33AQI

202452AQI

6
15
12
3
2
8
14
5
13
17
6
28
2
31
31
21
8
12
13
5
1
4
26
26
5
175
126
12
1

Highest AQI recorded in

December

85AQI

Lowest AQI recorded in

July

30AQI

202360AQI

1
9
1
4
9
2
1
1
1
5
2
9
1
4
3
29
1
23
59
1

Highest AQI recorded in

November

78AQI

Lowest AQI recorded in

July

24AQI

202247AQI

10
18
1
14
7
17
14
14
16
26
5
29
1
18
1
2
6
1
9
15
1
19
4
2
10
1
160
97
3
1

Highest AQI recorded in

September

68AQI

Lowest AQI recorded in

July

27AQI

202151AQI

1
23
7
7
21
6
22
3
18
12
27
4
20
10
31
30
1
26
4
22
9
8
20
2
2
27
2
198
153
14

Highest AQI recorded in

January

84AQI

Lowest AQI recorded in

July

31AQI

202054AQI

4
5
1
2
9
6
10
25
3
30
1
26
5
22
8
9
21
1
7
18
5
2
18
11
133
98
18

Highest AQI recorded in

December

86AQI

Lowest AQI recorded in

July

36AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
60AQI
Least Polluted Year Recorded
2022(Avg.)
47AQI

Land Environment And Resources Bureau's annual 2025 AQI (54) shows an average percentage change of 2.4% (worsened AQI) compared to previous years: 2020 (54), 2021 (51), 2022 (47), 2023 (60), 2024 (52).