Hainan Normal University, 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+
August Air Quality Analysis
Hainan Normal University, Haikou, Hainan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
19th Aug 2023
63AQILowest AQI recorded on
27th Aug 2021
13AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 55 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Hainan Normal University, Haikou, Hainan, China
AQI
Day
Night
.
6 AM3rd Aug 2025
7 PM
5 AM4th Aug 2025
Day time
Avg. Highest Time
11AM3rd Aug
66AQI
Avg. Lowest Time
4PM3rd Aug
43AQI
Night time
Avg. Highest Time
11PM3rd Aug
57AQI
Avg. Lowest Time
8PM3rd Aug
54AQI
In the last 24 hours,
Hainan Normal University's AQI reached its highest point of 66 at 11 AM during the Day, while the lowest point, 43, was recorded at 4 PM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hainan Normal University, Haikou, Hainan, China
JulAug
05th - 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 - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025336 AMAQI
5th Jul 2025337 AMAQI
5th Jul 2025398 AMAQI
5th Jul 2025369 AMAQI
5th Jul 20253510 AMAQI
5th Jul 20253411 AMAQI
5th Jul 20252912 PMAQI
5th Jul 2025301 PMAQI
5th Jul 2025362 PMAQI
5th Jul 2025323 PMAQI
5th Jul 2025344 PMAQI
5th Jul 2025375 PMAQI
5th Jul 2025386 PMAQI
5th Jul 2025367 PMAQI
5th Jul 2025378 PMAQI
5th Jul 2025389 PMAQI
5th Jul 20253610 PMAQI
5th Jul 20253811 PMAQI
6th Jul 20253612 AMAQI
6th Jul 2025361 AMAQI
6th Jul 2025352 AMAQI
6th Jul 2025353 AMAQI
6th Jul 2025354 AMAQI
6th Jul 2025375 AMAQI
28°C26/31°C
6th Jul 2025376 AMAQI
6th Jul 2025367 AMAQI
6th Jul 2025398 AMAQI
6th Jul 2025419 AMAQI
6th Jul 20253310 AMAQI
6th Jul 20253111 AMAQI
6th Jul 20253612 PMAQI
6th Jul 2025371 PMAQI
6th Jul 2025362 PMAQI
6th Jul 2025343 PMAQI
6th Jul 2025324 PMAQI
6th Jul 2025305 PMAQI
6th Jul 2025366 PMAQI
6th Jul 2025367 PMAQI
6th Jul 2025388 PMAQI
6th Jul 2025439 PMAQI
6th Jul 20254510 PMAQI
6th Jul 20254611 PMAQI
7th Jul 20254012 AMAQI
7th Jul 2025371 AMAQI
7th Jul 2025372 AMAQI
7th Jul 2025373 AMAQI
7th Jul 2025374 AMAQI
7th Jul 2025365 AMAQI
29°C26/31°C
7th Jul 2025376 AMAQI
7th Jul 2025377 AMAQI
7th Jul 2025348 AMAQI
7th Jul 2025349 AMAQI
7th Jul 20253210 AMAQI
7th Jul 20252511 AMAQI
7th Jul 20253012 PMAQI
7th Jul 2025301 PMAQI
7th Jul 2025322 PMAQI
7th Jul 2025323 PMAQI
7th Jul 2025284 PMAQI
7th Jul 2025325 PMAQI
7th Jul 2025296 PMAQI
7th Jul 2025337 PMAQI
7th Jul 2025388 PMAQI
7th Jul 2025389 PMAQI
7th Jul 20253810 PMAQI
7th Jul 20253911 PMAQI
8th Jul 20253812 AMAQI
8th Jul 2025391 AMAQI
8th Jul 2025382 AMAQI
8th Jul 2025383 AMAQI
8th Jul 2025384 AMAQI
8th Jul 2025385 AMAQI
29°C27/32°C
8th Jul 2025386 AMAQI
8th Jul 2025377 AMAQI
8th Jul 2025528 AMAQI
8th Jul 2025549 AMAQI
8th Jul 20255210 AMAQI
8th Jul 20255011 AMAQI
8th Jul 20254612 PMAQI
8th Jul 2025441 PMAQI
8th Jul 2025462 PMAQI
8th Jul 2025443 PMAQI
8th Jul 2025404 PMAQI
8th Jul 2025435 PMAQI
8th Jul 2025456 PMAQI
8th Jul 2025477 PMAQI
8th Jul 2025428 PMAQI
8th Jul 2025429 PMAQI
8th Jul 20254110 PMAQI
8th Jul 20254411 PMAQI
9th Jul 20254512 AMAQI
9th Jul 2025431 AMAQI
9th Jul 2025412 AMAQI
9th Jul 2025403 AMAQI
9th Jul 2025404 AMAQI
9th Jul 2025425 AMAQI
29°C27/33°C
9th Jul 2025416 AMAQI
9th Jul 2025407 AMAQI
9th Jul 2025488 AMAQI
9th Jul 2025579 AMAQI
9th Jul 20255310 AMAQI
9th Jul 20256011 AMAQI
9th Jul 20254712 PMAQI
9th Jul 2025471 PMAQI
9th Jul 2025502 PMAQI
9th Jul 2025513 PMAQI
9th Jul 2025524 PMAQI
9th Jul 2025485 PMAQI
9th Jul 2025506 PMAQI
9th Jul 2025457 PMAQI
9th Jul 2025468 PMAQI
9th Jul 2025509 PMAQI
9th Jul 20254710 PMAQI
9th Jul 20254711 PMAQI
10th Jul 20254812 AMAQI
10th Jul 2025481 AMAQI
10th Jul 2025462 AMAQI
10th Jul 2025463 AMAQI
10th Jul 2025484 AMAQI
10th Jul 2025475 AMAQI
29°C26/32°C
10th Jul 2025476 AMAQI
10th Jul 2025477 AMAQI
10th Jul 2025518 AMAQI
10th Jul 2025509 AMAQI
10th Jul 20255210 AMAQI
10th Jul 20255611 AMAQI
10th Jul 20255612 PMAQI
10th Jul 2025561 PMAQI
10th Jul 2025552 PMAQI
10th Jul 2025533 PMAQI
10th Jul 2025524 PMAQI
10th Jul 2025465 PMAQI
10th Jul 2025456 PMAQI
10th Jul 2025487 PMAQI
10th Jul 2025508 PMAQI
10th Jul 2025519 PMAQI
10th Jul 20255110 PMAQI
10th Jul 20255211 PMAQI
11th Jul 20255112 AMAQI
11th Jul 2025521 AMAQI
11th Jul 2025502 AMAQI
11th Jul 2025483 AMAQI
11th Jul 2025494 AMAQI
11th Jul 2025505 AMAQI
29°C27/32°C
11th Jul 2025506 AMAQI
11th Jul 2025507 AMAQI
11th Jul 2025428 AMAQI
11th Jul 2025469 AMAQI
11th Jul 20254510 AMAQI
11th Jul 20255211 AMAQI
11th Jul 20255212 PMAQI
11th Jul 2025521 PMAQI
11th Jul 2025512 PMAQI
11th Jul 2025483 PMAQI
11th Jul 2025464 PMAQI
11th Jul 2025505 PMAQI
11th Jul 2025526 PMAQI
11th Jul 2025537 PMAQI
11th Jul 2025528 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255310 PMAQI
11th Jul 20255211 PMAQI
12th Jul 20255312 AMAQI
12th Jul 2025521 AMAQI
12th Jul 2025512 AMAQI
12th Jul 2025523 AMAQI
12th Jul 2025514 AMAQI
12th Jul 2025515 AMAQI
28°C27/30°C
12th Jul 2025506 AMAQI
12th Jul 2025507 AMAQI
12th Jul 2025538 AMAQI
12th Jul 2025549 AMAQI
12th Jul 20254510 AMAQI
12th Jul 20253611 AMAQI
12th Jul 20254412 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025452 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025485 PMAQI
12th Jul 2025446 PMAQI
12th Jul 2025477 PMAQI
12th Jul 2025528 PMAQI
12th Jul 2025539 PMAQI
12th Jul 20255510 PMAQI
12th Jul 20255511 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025521 AMAQI
13th Jul 2025522 AMAQI
13th Jul 2025523 AMAQI
13th Jul 2025524 AMAQI
13th Jul 2025525 AMAQI
29°C26/31°C
13th Jul 2025526 AMAQI
13th Jul 2025527 AMAQI
13th Jul 2025568 AMAQI
13th Jul 2025609 AMAQI
13th Jul 20256410 AMAQI
13th Jul 20255811 AMAQI
13th Jul 20255612 PMAQI
13th Jul 2025521 PMAQI
13th Jul 2025502 PMAQI
13th Jul 2025463 PMAQI
13th Jul 2025484 PMAQI
13th Jul 2025485 PMAQI
13th Jul 2025486 PMAQI
13th Jul 2025487 PMAQI
13th Jul 2025538 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255511 PMAQI
14th Jul 20255612 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025543 AMAQI
14th Jul 2025544 AMAQI
14th Jul 2025545 AMAQI
29°C27/31°C
14th Jul 2025546 AMAQI
14th Jul 2025547 AMAQI
14th Jul 2025548 AMAQI
14th Jul 2025579 AMAQI
14th Jul 20256110 AMAQI
14th Jul 20255611 AMAQI
14th Jul 20255612 PMAQI
14th Jul 2025561 PMAQI
14th Jul 2025572 PMAQI
14th Jul 2025543 PMAQI
14th Jul 2025514 PMAQI
14th Jul 2025525 PMAQI
14th Jul 2025506 PMAQI
14th Jul 2025507 PMAQI
14th Jul 2025548 PMAQI
14th Jul 2025559 PMAQI
14th Jul 20255610 PMAQI
14th Jul 20255611 PMAQI
15th Jul 20255612 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025552 AMAQI
15th Jul 2025553 AMAQI
15th Jul 2025554 AMAQI
15th Jul 2025555 AMAQI
29°C27/32°C
15th Jul 2025556 AMAQI
15th Jul 2025557 AMAQI
15th Jul 2025588 AMAQI
15th Jul 2025629 AMAQI
15th Jul 20256010 AMAQI
15th Jul 20256311 AMAQI
15th Jul 20255512 PMAQI
15th Jul 2025521 PMAQI
15th Jul 2025492 PMAQI
15th Jul 2025493 PMAQI
15th Jul 2025484 PMAQI
15th Jul 2025505 PMAQI
15th Jul 2025526 PMAQI
15th Jul 2025537 PMAQI
15th Jul 2025558 PMAQI
15th Jul 2025569 PMAQI
15th Jul 20255710 PMAQI
15th Jul 20255811 PMAQI
16th Jul 20255712 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025564 AMAQI
16th Jul 2025565 AMAQI
29°C27/32°C
16th Jul 2025566 AMAQI
16th Jul 2025567 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025569 AMAQI
16th Jul 20255710 AMAQI
16th Jul 20255711 AMAQI
16th Jul 20255712 PMAQI
16th Jul 2025571 PMAQI
16th Jul 2025562 PMAQI
16th Jul 2025523 PMAQI
16th Jul 2025524 PMAQI
16th Jul 2025535 PMAQI
16th Jul 2025526 PMAQI
16th Jul 2025547 PMAQI
16th Jul 2025568 PMAQI
16th Jul 2025589 PMAQI
16th Jul 20255910 PMAQI
16th Jul 20255911 PMAQI
17th Jul 20255912 AMAQI
17th Jul 2025571 AMAQI
17th Jul 2025582 AMAQI
17th Jul 2025573 AMAQI
17th Jul 2025564 AMAQI
17th Jul 2025565 AMAQI
29°C27/32°C
17th Jul 2025566 AMAQI
17th Jul 2025567 AMAQI
17th Jul 2025568 AMAQI
17th Jul 2025589 AMAQI
17th Jul 20255810 AMAQI
17th Jul 20255611 AMAQI
17th Jul 20255212 PMAQI
17th Jul 2025591 PMAQI
17th Jul 2025592 PMAQI
17th Jul 2025583 PMAQI
17th Jul 2025564 PMAQI
17th Jul 2025545 PMAQI
17th Jul 2025576 PMAQI
17th Jul 2025587 PMAQI
17th Jul 2025578 PMAQI
17th Jul 2025589 PMAQI
17th Jul 20255810 PMAQI
17th Jul 20255911 PMAQI
18th Jul 20255912 AMAQI
18th Jul 2025581 AMAQI
18th Jul 2025582 AMAQI
18th Jul 2025583 AMAQI
18th Jul 2025564 AMAQI
18th Jul 2025575 AMAQI
30°C27/32°C
18th Jul 2025566 AMAQI
18th Jul 2025577 AMAQI
18th Jul 2025618 AMAQI
18th Jul 2025619 AMAQI
18th Jul 20256110 AMAQI
18th Jul 20255411 AMAQI
18th Jul 20255312 PMAQI
18th Jul 2025521 PMAQI
18th Jul 2025482 PMAQI
18th Jul 2025443 PMAQI
18th Jul 2025484 PMAQI
18th Jul 2025485 PMAQI
18th Jul 2025476 PMAQI
18th Jul 2025487 PMAQI
18th Jul 2025548 PMAQI
18th Jul 2025549 PMAQI
18th Jul 20255510 PMAQI
18th Jul 20255611 PMAQI
19th Jul 20255612 AMAQI
19th Jul 2025571 AMAQI
19th Jul 2025572 AMAQI
19th Jul 2025563 AMAQI
19th Jul 2025564 AMAQI
19th Jul 2025575 AMAQI
29°C28/32°C
19th Jul 2025576 AMAQI
19th Jul 2025567 AMAQI
19th Jul 2025448 AMAQI
19th Jul 2025409 AMAQI
19th Jul 20254310 AMAQI
19th Jul 20255011 AMAQI
19th Jul 20255012 PMAQI
19th Jul 2025421 PMAQI
19th Jul 2025402 PMAQI
19th Jul 2025403 PMAQI
19th Jul 2025424 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025476 PMAQI
19th Jul 2025437 PMAQI
19th Jul 2025538 PMAQI
19th Jul 2025539 PMAQI
19th Jul 20255310 PMAQI
19th Jul 20255611 PMAQI
20th Jul 20255512 AMAQI
20th Jul 2025551 AMAQI
20th Jul 2025562 AMAQI
20th Jul 2025553 AMAQI
20th Jul 2025554 AMAQI
20th Jul 2025555 AMAQI
27°C25/29°C
20th Jul 2025556 AMAQI
20th Jul 2025557 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025289 AMAQI
20th Jul 20252810 AMAQI
20th Jul 20253111 AMAQI
20th Jul 20253512 PMAQI
20th Jul 2025361 PMAQI
20th Jul 2025382 PMAQI
20th Jul 2025353 PMAQI
20th Jul 2025344 PMAQI
20th Jul 2025345 PMAQI
20th Jul 2025386 PMAQI
20th Jul 2025447 PMAQI
20th Jul 2025528 PMAQI
20th Jul 2025549 PMAQI
20th Jul 20255410 PMAQI
20th Jul 20255411 PMAQI
21st Jul 20255512 AMAQI
21st Jul 2025551 AMAQI
21st Jul 2025552 AMAQI
21st Jul 2025553 AMAQI
21st Jul 2025544 AMAQI
21st Jul 2025545 AMAQI
26°C25/27°C
21st Jul 2025546 AMAQI
21st Jul 2025547 AMAQI
21st Jul 2025348 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252210 AMAQI
21st Jul 20252211 AMAQI
21st Jul 20253412 PMAQI
21st Jul 2025361 PMAQI
21st Jul 2025352 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025294 PMAQI
21st Jul 2025295 PMAQI
21st Jul 2025296 PMAQI
21st Jul 2025377 PMAQI
21st Jul 2025528 PMAQI
21st Jul 2025529 PMAQI
21st Jul 20255310 PMAQI
21st Jul 20255211 PMAQI
22nd Jul 20255312 AMAQI
22nd Jul 2025541 AMAQI
22nd Jul 2025542 AMAQI
22nd Jul 2025543 AMAQI
22nd Jul 2025534 AMAQI
22nd Jul 2025525 AMAQI
26°C25/27°C
22nd Jul 2025526 AMAQI
22nd Jul 2025527 AMAQI
22nd Jul 2025328 AMAQI
22nd Jul 2025289 AMAQI
22nd Jul 20253110 AMAQI
22nd Jul 20253011 AMAQI
22nd Jul 20253812 PMAQI
22nd Jul 2025381 PMAQI
22nd Jul 2025352 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025324 PMAQI
22nd Jul 2025345 PMAQI
22nd Jul 2025306 PMAQI
22nd Jul 2025377 PMAQI
22nd Jul 2025498 PMAQI
22nd Jul 2025519 PMAQI
22nd Jul 20255210 PMAQI
22nd Jul 20255211 PMAQI
23rd Jul 20255212 AMAQI
23rd Jul 2025521 AMAQI
23rd Jul 2025522 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025514 AMAQI
23rd Jul 2025525 AMAQI
28°C26/30°C
23rd Jul 2025526 AMAQI
23rd Jul 2025517 AMAQI
23rd Jul 2025448 AMAQI
23rd Jul 2025439 AMAQI
23rd Jul 20254910 AMAQI
23rd Jul 20254711 AMAQI
23rd Jul 20254012 PMAQI
23rd Jul 2025391 PMAQI
23rd Jul 2025392 PMAQI
23rd Jul 2025403 PMAQI
23rd Jul 2025404 PMAQI
23rd Jul 2025375 PMAQI
23rd Jul 2025386 PMAQI
23rd Jul 2025447 PMAQI
23rd Jul 2025508 PMAQI
23rd Jul 2025509 PMAQI
23rd Jul 20255010 PMAQI
23rd Jul 20255111 PMAQI
24th Jul 20255012 AMAQI
24th Jul 2025501 AMAQI
24th Jul 2025522 AMAQI
24th Jul 2025523 AMAQI
24th Jul 2025524 AMAQI
24th Jul 2025525 AMAQI
28°C26/31°C
24th Jul 2025526 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025348 AMAQI
24th Jul 2025329 AMAQI
24th Jul 20253410 AMAQI
24th Jul 20253611 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025381 PMAQI
24th Jul 2025382 PMAQI
24th Jul 2025313 PMAQI
24th Jul 2025334 PMAQI
24th Jul 2025325 PMAQI
24th Jul 2025356 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025478 PMAQI
24th Jul 2025479 PMAQI
24th Jul 20254710 PMAQI
24th Jul 20254611 PMAQI
25th Jul 20255012 AMAQI
25th Jul 2025501 AMAQI
25th Jul 2025502 AMAQI
25th Jul 2025503 AMAQI
25th Jul 2025494 AMAQI
25th Jul 2025485 AMAQI
27°C26/29°C
25th Jul 2025506 AMAQI
25th Jul 2025497 AMAQI
25th Jul 2025458 AMAQI
25th Jul 2025579 AMAQI
25th Jul 20255310 AMAQI
25th Jul 20253911 AMAQI
25th Jul 20254012 PMAQI
25th Jul 2025391 PMAQI
25th Jul 2025382 PMAQI
25th Jul 2025323 PMAQI
25th Jul 2025304 PMAQI
25th Jul 2025335 PMAQI
25th Jul 2025396 PMAQI
25th Jul 2025427 PMAQI
25th Jul 2025488 PMAQI
25th Jul 2025499 PMAQI
25th Jul 20255110 PMAQI
25th Jul 20255211 PMAQI
26th Jul 20255212 AMAQI
26th Jul 2025491 AMAQI
26th Jul 2025482 AMAQI
26th Jul 2025503 AMAQI
26th Jul 2025494 AMAQI
26th Jul 2025495 AMAQI
28°C26/31°C
26th Jul 2025486 AMAQI
26th Jul 2025477 AMAQI
26th Jul 2025418 AMAQI
26th Jul 2025379 AMAQI
26th Jul 20253410 AMAQI
26th Jul 20253211 AMAQI
26th Jul 20254012 PMAQI
26th Jul 2025381 PMAQI
26th Jul 2025362 PMAQI
26th Jul 2025363 PMAQI
26th Jul 2025354 PMAQI
26th Jul 2025345 PMAQI
26th Jul 2025336 PMAQI
26th Jul 2025407 PMAQI
26th Jul 2025488 PMAQI
26th Jul 2025509 PMAQI
26th Jul 20255210 PMAQI
26th Jul 20255211 PMAQI
27th Jul 20255212 AMAQI
27th Jul 2025521 AMAQI
27th Jul 2025512 AMAQI
27th Jul 2025503 AMAQI
27th Jul 2025484 AMAQI
27th Jul 2025485 AMAQI
29°C27/31°C
27th Jul 2025496 AMAQI
27th Jul 2025487 AMAQI
27th Jul 2025448 AMAQI
27th Jul 2025409 AMAQI
27th Jul 20254610 AMAQI
27th Jul 20254811 AMAQI
27th Jul 20254512 PMAQI
27th Jul 2025431 PMAQI
27th Jul 2025432 PMAQI
27th Jul 2025403 PMAQI
27th Jul 2025424 PMAQI
27th Jul 2025455 PMAQI
27th Jul 2025426 PMAQI
27th Jul 2025467 PMAQI
27th Jul 2025488 PMAQI
27th Jul 2025529 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255611 PMAQI
28th Jul 20255212 AMAQI
28th Jul 2025521 AMAQI
28th Jul 2025502 AMAQI
28th Jul 2025493 AMAQI
28th Jul 2025484 AMAQI
28th Jul 2025495 AMAQI
29°C27/31°C
28th Jul 2025486 AMAQI
28th Jul 2025497 AMAQI
28th Jul 2025398 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20252511 AMAQI
28th Jul 20253512 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025352 PMAQI
28th Jul 2025333 PMAQI
28th Jul 2025304 PMAQI
28th Jul 2025325 PMAQI
28th Jul 2025306 PMAQI
28th Jul 2025367 PMAQI
28th Jul 2025478 PMAQI
28th Jul 2025489 PMAQI
28th Jul 20255010 PMAQI
28th Jul 20255011 PMAQI
29th Jul 20255112 AMAQI
29th Jul 2025511 AMAQI
29th Jul 2025512 AMAQI
29th Jul 2025503 AMAQI
29th Jul 2025484 AMAQI
29th Jul 2025475 AMAQI
29°C27/31°C
29th Jul 2025486 AMAQI
29th Jul 2025487 AMAQI
29th Jul 2025448 AMAQI
29th Jul 2025359 AMAQI
29th Jul 20253910 AMAQI
29th Jul 20253911 AMAQI
29th Jul 20254112 PMAQI
29th Jul 2025381 PMAQI
29th Jul 2025362 PMAQI
29th Jul 2025343 PMAQI
29th Jul 2025364 PMAQI
29th Jul 2025455 PMAQI
29th Jul 2025526 PMAQI
29th Jul 2025497 PMAQI
29th Jul 2025468 PMAQI
29th Jul 2025479 PMAQI
29th Jul 20254810 PMAQI
29th Jul 20254711 PMAQI
30th Jul 20254812 AMAQI
30th Jul 2025501 AMAQI
30th Jul 2025492 AMAQI
30th Jul 2025483 AMAQI
30th Jul 2025474 AMAQI
30th Jul 2025475 AMAQI
29°C27/32°C
30th Jul 2025476 AMAQI
30th Jul 2025477 AMAQI
30th Jul 2025388 AMAQI
30th Jul 2025469 AMAQI
30th Jul 20255010 AMAQI
30th Jul 20253811 AMAQI
30th Jul 20254012 PMAQI
30th Jul 2025391 PMAQI
30th Jul 2025382 PMAQI
30th Jul 2025353 PMAQI
30th Jul 2025334 PMAQI
30th Jul 2025315 PMAQI
30th Jul 2025336 PMAQI
30th Jul 2025347 PMAQI
30th Jul 2025428 PMAQI
30th Jul 2025449 PMAQI
30th Jul 20254710 PMAQI
30th Jul 20254511 PMAQI
31st Jul 20254812 AMAQI
31st Jul 2025471 AMAQI
31st Jul 2025482 AMAQI
31st Jul 2025483 AMAQI
31st Jul 2025484 AMAQI
31st Jul 2025485 AMAQI
29°C27/33°C
31st Jul 2025486 AMAQI
31st Jul 2025487 AMAQI
31st Jul 2025488 AMAQI
31st Jul 2025489 AMAQI
31st Jul 20255110 AMAQI
31st Jul 20254111 AMAQI
31st Jul 20253712 PMAQI
31st Jul 2025391 PMAQI
31st Jul 2025402 PMAQI
31st Jul 2025283 PMAQI
31st Jul 2025324 PMAQI
31st Jul 2025365 PMAQI
31st Jul 2025336 PMAQI
31st Jul 2025447 PMAQI
31st Jul 2025538 PMAQI
31st Jul 2025529 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20255712 AMAQI
1st Aug 2025541 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025533 AMAQI
1st Aug 2025544 AMAQI
1st Aug 2025535 AMAQI
30°C27/33°C
1st Aug 2025546 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025598 AMAQI
1st Aug 2025619 AMAQI
1st Aug 20255710 AMAQI
1st Aug 20255511 AMAQI
1st Aug 20255212 PMAQI
1st Aug 2025551 PMAQI
1st Aug 2025502 PMAQI
1st Aug 2025533 PMAQI
1st Aug 2025464 PMAQI
1st Aug 2025465 PMAQI
1st Aug 2025546 PMAQI
1st Aug 2025487 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025519 PMAQI
1st Aug 20255110 PMAQI
1st Aug 20255211 PMAQI
2nd Aug 20255412 AMAQI
2nd Aug 2025551 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025554 AMAQI
2nd Aug 2025555 AMAQI
29°C27/31°C
2nd Aug 2025566 AMAQI
2nd Aug 2025557 AMAQI
2nd Aug 2025518 AMAQI
2nd Aug 2025479 AMAQI
2nd Aug 20255010 AMAQI
2nd Aug 20255611 AMAQI
2nd Aug 20255712 PMAQI
2nd Aug 2025501 PMAQI
2nd Aug 2025492 PMAQI
2nd Aug 2025523 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025485 PMAQI
2nd Aug 2025516 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025548 PMAQI
2nd Aug 2025569 PMAQI
2nd Aug 20255710 PMAQI
2nd Aug 20255511 PMAQI
3rd Aug 20255412 AMAQI
3rd Aug 2025551 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025553 AMAQI
3rd Aug 2025544 AMAQI
3rd Aug 2025555 AMAQI
29°C27/32°C
3rd Aug 2025556 AMAQI
3rd Aug 2025557 AMAQI
3rd Aug 2025578 AMAQI
3rd Aug 2025599 AMAQI
3rd Aug 20256510 AMAQI
3rd Aug 20256611 AMAQI
3rd Aug 20256612 PMAQI
3rd Aug 2025561 PMAQI
3rd Aug 2025532 PMAQI
3rd Aug 2025553 PMAQI
3rd Aug 2025434 PMAQI
3rd Aug 2025455 PMAQI
3rd Aug 2025446 PMAQI
3rd Aug 2025477 PMAQI
3rd Aug 2025548 PMAQI
3rd Aug 2025559 PMAQI
3rd Aug 20255510 PMAQI
3rd Aug 20255711 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025552 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025564 AMAQI
4th Aug 2025565 AMAQI
30°C27/34°C
4th Aug 2025566 AMAQI
6 AM4th Aug 2025567 AMAQI
4th Aug 2025578 AMAQI
4th Aug 2025549 AMAQI
4th Aug 20255310 AMAQI
4th Aug 20255211 AMAQI
4th Aug 20255812 PMAQI
12 PM4th Aug 2025561 PMAQI
4th Aug 2025612 PMAQI
4th Aug 2025553 PMAQI
4th Aug 2025504 PMAQI
4th Aug 2025485 PMAQI
4th Aug 2025506 PMAQI
4th Aug 2025547 PMAQI
7 PM4th Aug 2025578 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20256010 PMAQI
4th Aug 20255811 PMAQI
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 7 AM
50AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
8 AM - 7 PM
44AQI
12 hours / Day
360 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 50), while the lowest AQI was between 8 AM to 7 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 11 PM
51AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
51AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 51), while the lowest AQI was between 12 AM to 11 PM (Avg. 51).
2025 Days Vs Air Quality
Hainan Normal University, Haikou, Hainan, China
2025
36%
77
59%
126
6%
12
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
77 DaysModerate
126 DaysPoor
12 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 36%
Health Risk Level:
High
In 2025, 36% of 216 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
Hainan Normal University, 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.
1st January 2025
110AQI
110AQI
2nd January 2025
104AQI
104AQI
3rd January 2025
102AQI
102AQI
4th January 2025
92AQI
92AQI
5th January 2025
112AQI
112AQI
6th January 2025
121AQI
121AQI
7th January 2025
93AQI
93AQI
8th January 2025
92AQI
92AQI
9th January 2025
121AQI
121AQI
10th January 2025
103AQI
103AQI
11th January 2025
90AQI
90AQI
12th January 2025
77AQI
77AQI
13th January 2025
76AQI
76AQI
14th January 2025
73AQI
73AQI
15th January 2025
77AQI
77AQI
16th January 2025
92AQI
92AQI
17th January 2025
93AQI
93AQI
18th January 2025
85AQI
85AQI
19th January 2025
89AQI
89AQI
20th January 2025
96AQI
96AQI
21st January 2025
76AQI
76AQI
22nd January 2025
91AQI
91AQI
23rd January 2025
83AQI
83AQI
24th January 2025
70AQI
70AQI
25th January 2025
64AQI
64AQI
26th January 2025
58AQI
58AQI
27th January 2025
58AQI
58AQI
28th January 2025
60AQI
60AQI
29th January 2025
75AQI
75AQI
30th January 2025
69AQI
69AQI
31st January 2025
71AQI
71AQI
1st February 2025
58AQI
58AQI
2nd February 2025
49AQI
49AQI
3rd February 2025
65AQI
65AQI
4th February 2025
53AQI
53AQI
5th February 2025
59AQI
59AQI
6th February 2025
61AQI
61AQI
7th February 2025
69AQI
69AQI
8th February 2025
58AQI
58AQI
9th February 2025
68AQI
68AQI
10th February 2025
62AQI
62AQI
11th February 2025
61AQI
61AQI
12th February 2025
56AQI
56AQI
13th February 2025
69AQI
69AQI
14th February 2025
51AQI
51AQI
15th February 2025
72AQI
72AQI
16th February 2025
48AQI
48AQI
17th February 2025
71AQI
71AQI
18th February 2025
77AQI
77AQI
19th February 2025
72AQI
72AQI
20th February 2025
68AQI
68AQI
21st February 2025
64AQI
64AQI
22nd February 2025
49AQI
49AQI
23rd February 2025
69AQI
69AQI
24th February 2025
51AQI
51AQI
25th February 2025
68AQI
68AQI
26th February 2025
79AQI
79AQI
27th February 2025
70AQI
70AQI
28th February 2025
64AQI
64AQI
1st March 2025
60AQI
60AQI
2nd March 2025
56AQI
56AQI
3rd March 2025
64AQI
64AQI
4th March 2025
55AQI
55AQI
5th March 2025
54AQI
54AQI
6th March 2025
33AQI
33AQI
7th March 2025
44AQI
44AQI
8th March 2025
51AQI
51AQI
9th March 2025
62AQI
62AQI
10th March 2025
67AQI
67AQI
11th March 2025
65AQI
65AQI
12th March 2025
61AQI
61AQI
13th March 2025
57AQI
57AQI
14th March 2025
48AQI
48AQI
15th March 2025
59AQI
59AQI
16th March 2025
42AQI
42AQI
17th March 2025
69AQI
69AQI
18th March 2025
67AQI
67AQI
19th March 2025
83AQI
83AQI
20th March 2025
81AQI
81AQI
21st March 2025
81AQI
81AQI
22nd March 2025
76AQI
76AQI
23rd March 2025
70AQI
70AQI
24th March 2025
75AQI
75AQI
25th March 2025
75AQI
75AQI
26th March 2025
73AQI
73AQI
27th March 2025
69AQI
69AQI
28th March 2025
67AQI
67AQI
29th March 2025
52AQI
52AQI
30th March 2025
37AQI
37AQI
31st March 2025
52AQI
52AQI
1st April 2025
56AQI
56AQI
2nd April 2025
69AQI
69AQI
3rd April 2025
57AQI
57AQI
4th April 2025
62AQI
62AQI
5th April 2025
67AQI
67AQI
6th April 2025
72AQI
72AQI
7th April 2025
74AQI
74AQI
8th April 2025
66AQI
66AQI
9th April 2025
67AQI
67AQI
10th April 2025
76AQI
76AQI
11th April 2025
63AQI
63AQI
12th April 2025
70AQI
70AQI
13th April 2025
132AQI
132AQI
14th April 2025
134AQI
134AQI
15th April 2025
147AQI
147AQI
16th April 2025
137AQI
137AQI
17th April 2025
115AQI
115AQI
18th April 2025
94AQI
94AQI
19th April 2025
84AQI
84AQI
20th April 2025
67AQI
67AQI
21st April 2025
65AQI
65AQI
22nd April 2025
66AQI
66AQI
23rd April 2025
62AQI
62AQI
24th April 2025
64AQI
64AQI
25th April 2025
58AQI
58AQI
26th April 2025
53AQI
53AQI
27th April 2025
45AQI
45AQI
28th April 2025
59AQI
59AQI
29th April 2025
62AQI
62AQI
30th April 2025
61AQI
61AQI
1st May 2025
52AQI
52AQI
2nd May 2025
59AQI
59AQI
3rd May 2025
60AQI
60AQI
4th May 2025
59AQI
59AQI
5th May 2025
56AQI
56AQI
6th May 2025
59AQI
59AQI
7th May 2025
56AQI
56AQI
8th May 2025
53AQI
53AQI
9th May 2025
55AQI
55AQI
10th May 2025
50AQI
50AQI
11th May 2025
59AQI
59AQI
12th May 2025
62AQI
62AQI
13th May 2025
58AQI
58AQI
14th May 2025
48AQI
48AQI
15th May 2025
41AQI
41AQI
16th May 2025
38AQI
38AQI
17th May 2025
40AQI
40AQI
18th May 2025
45AQI
45AQI
19th May 2025
44AQI
44AQI
20th May 2025
50AQI
50AQI
21st May 2025
48AQI
48AQI
22nd May 2025
45AQI
45AQI
23rd May 2025
41AQI
41AQI
24th May 2025
38AQI
38AQI
25th May 2025
57AQI
57AQI
26th May 2025
67AQI
67AQI
27th May 2025
58AQI
58AQI
28th May 2025
50AQI
50AQI
29th May 2025
45AQI
45AQI
30th May 2025
43AQI
43AQI
31st May 2025
41AQI
41AQI
1st June 2025
48AQI
48AQI
2nd June 2025
43AQI
43AQI
3rd June 2025
55AQI
55AQI
4th June 2025
55AQI
55AQI
5th June 2025
42AQI
42AQI
6th June 2025
42AQI
42AQI
7th June 2025
45AQI
45AQI
8th June 2025
49AQI
49AQI
9th June 2025
49AQI
49AQI
10th June 2025
48AQI
48AQI
11th June 2025
45AQI
45AQI
12th June 2025
37AQI
37AQI
13th June 2025
33AQI
33AQI
14th June 2025
35AQI
35AQI
15th June 2025
42AQI
42AQI
16th June 2025
46AQI
46AQI
17th June 2025
50AQI
50AQI
18th June 2025
49AQI
49AQI
19th June 2025
47AQI
47AQI
20th June 2025
46AQI
46AQI
21st June 2025
42AQI
42AQI
22nd June 2025
37AQI
37AQI
23rd June 2025
35AQI
35AQI
24th June 2025
35AQI
35AQI
25th June 2025
34AQI
34AQI
26th June 2025
31AQI
31AQI
27th June 2025
31AQI
31AQI
28th June 2025
33AQI
33AQI
29th June 2025
35AQI
35AQI
30th June 2025
35AQI
35AQI
1st July 2025
33AQI
33AQI
2nd July 2025
30AQI
30AQI
3rd July 2025
31AQI
31AQI
4th July 2025
32AQI
32AQI
5th July 2025
35AQI
35AQI
6th July 2025
37AQI
37AQI
7th July 2025
35AQI
35AQI
8th July 2025
42AQI
42AQI
9th July 2025
47AQI
47AQI
10th July 2025
49AQI
49AQI
11th July 2025
50AQI
50AQI
12th July 2025
50AQI
50AQI
13th July 2025
53AQI
53AQI
14th July 2025
54AQI
54AQI
15th July 2025
55AQI
55AQI
16th July 2025
56AQI
56AQI
17th July 2025
57AQI
57AQI
18th July 2025
55AQI
55AQI
19th July 2025
51AQI
51AQI
20th July 2025
48AQI
48AQI
21st July 2025
45AQI
45AQI
22nd July 2025
45AQI
45AQI
23rd July 2025
48AQI
48AQI
24th July 2025
45AQI
45AQI
25th July 2025
46AQI
46AQI
26th July 2025
45AQI
45AQI
27th July 2025
48AQI
48AQI
28th July 2025
44AQI
44AQI
29th July 2025
46AQI
46AQI
30th July 2025
43AQI
43AQI
31st July 2025
45AQI
45AQI
1st August 2025
53AQI
53AQI
2nd August 2025
54AQI
54AQI
3rd August 2025
55AQI
55AQI
86AQI
63AQI
61AQI
77AQI
51AQI
42AQI
45AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202561AQI
24
7
3
25
5
26
1
24
5
16
15
28
2
24
7
3
77
126
12
Highest AQI recorded in
January86AQI
Lowest AQI recorded in
June42AQI
202457AQI
6
24
1
9
18
2
4
27
3
27
19
12
29
1
29
2
24
7
24
6
7
21
3
5
23
2
26
5
159
194
13
Highest AQI recorded in
December83AQI
Lowest AQI recorded in
July28AQI
202355AQI
8
21
2
10
16
2
6
25
4
26
16
15
26
4
27
3
1
21
10
25
5
10
20
1
8
16
2
7
22
2
168
183
10
Highest AQI recorded in
December73AQI
Lowest AQI recorded in
September37AQI
202249AQI
13
16
1
16
5
16
15
14
16
28
3
28
2
20
1
1
7
21
12
19
24
6
6
23
2
184
128
3
Highest AQI recorded in
December66AQI
Lowest AQI recorded in
July31AQI
202149AQI
24
7
9
19
15
15
1
23
7
27
4
20
10
30
1
29
2
26
4
23
8
12
17
1
1
29
1
215
140
10
Highest AQI recorded in
January86AQI
Lowest AQI recorded in
July32AQI
202048AQI
8
5
10
11
11
7
30
31
25
6
27
3
8
23
8
19
3
20
11
158
94
14
Highest AQI recorded in
December85AQI
Lowest AQI recorded in
June31AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
61AQILeast Polluted Year Recorded
2020(Avg.)
48AQIHainan Normal University's annual 2025 AQI (61) shows an average percentage change of 17.8% (worsened AQI) compared to previous years: 2020 (48), 2021 (49), 2022 (49), 2023 (55), 2024 (57).
