Boao guo Guest House Station, Jiaji, 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
Boao guo Guest House Station, Jiaji, Hainan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Sep 2022
92AQILowest AQI recorded on
8th Sep 2022
12AQISame Day Analysis (21st September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Boao guo Guest House Station, Jiaji, Hainan, China
AQI
Day
Night
.
6 AM21st Sep 2025
6 PM
5 AM22nd Sep 2025
Day time
Avg. Highest Time
8AM21st Sep
42AQI
Avg. Lowest Time
6PM21st Sep
16AQI
Night time
Avg. Highest Time
2AM22nd Sep
35AQI
Avg. Lowest Time
7PM21st Sep
21AQI
In the last 24 hours,
Boao guo Guest House Station's AQI reached its highest point of 42 at 8 AM during the Day, while the lowest point, 16, was recorded at 6 PM during the Day between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Boao guo Guest House Station, Jiaji, Hainan, China
AugSep
23rd - 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 - 21st21st - 22nd22nd
Day
Night
23rd Aug 2025366 AMAQI
23rd Aug 2025347 AMAQI
23rd Aug 2025338 AMAQI
23rd Aug 2025369 AMAQI
23rd Aug 20253210 AMAQI
23rd Aug 20253111 AMAQI
23rd Aug 20254012 PMAQI
23rd Aug 2025261 PMAQI
23rd Aug 2025302 PMAQI
23rd Aug 2025313 PMAQI
23rd Aug 2025304 PMAQI
23rd Aug 2025295 PMAQI
23rd Aug 2025276 PMAQI
23rd Aug 2025427 PMAQI
23rd Aug 2025388 PMAQI
23rd Aug 2025439 PMAQI
23rd Aug 20254210 PMAQI
23rd Aug 20253911 PMAQI
24th Aug 20253912 AMAQI
24th Aug 2025361 AMAQI
24th Aug 2025382 AMAQI
24th Aug 2025393 AMAQI
24th Aug 2025384 AMAQI
24th Aug 2025375 AMAQI
28°C24/33°C
24th Aug 2025406 AMAQI
24th Aug 2025377 AMAQI
24th Aug 2025348 AMAQI
24th Aug 2025349 AMAQI
24th Aug 20253210 AMAQI
24th Aug 20253311 AMAQI
24th Aug 20253512 PMAQI
24th Aug 2025321 PMAQI
24th Aug 2025282 PMAQI
24th Aug 2025333 PMAQI
24th Aug 2025304 PMAQI
24th Aug 2025325 PMAQI
24th Aug 2025306 PMAQI
24th Aug 2025337 PMAQI
24th Aug 2025368 PMAQI
24th Aug 2025389 PMAQI
24th Aug 20253810 PMAQI
24th Aug 20253811 PMAQI
25th Aug 20253712 AMAQI
25th Aug 2025381 AMAQI
25th Aug 2025362 AMAQI
25th Aug 2025363 AMAQI
25th Aug 2025414 AMAQI
25th Aug 2025415 AMAQI
26°C24/27°C
25th Aug 2025406 AMAQI
25th Aug 2025387 AMAQI
25th Aug 2025288 AMAQI
25th Aug 2025339 AMAQI
25th Aug 20253010 AMAQI
25th Aug 20252811 AMAQI
25th Aug 20252912 PMAQI
25th Aug 2025301 PMAQI
25th Aug 2025242 PMAQI
25th Aug 2025283 PMAQI
25th Aug 2025274 PMAQI
25th Aug 2025245 PMAQI
25th Aug 2025296 PMAQI
25th Aug 2025347 PMAQI
25th Aug 2025368 PMAQI
25th Aug 2025389 PMAQI
25th Aug 20253610 PMAQI
25th Aug 20253611 PMAQI
26th Aug 20253712 AMAQI
26th Aug 2025381 AMAQI
26th Aug 2025382 AMAQI
26th Aug 2025373 AMAQI
26th Aug 2025364 AMAQI
26th Aug 2025375 AMAQI
26°C25/28°C
26th Aug 2025376 AMAQI
26th Aug 2025377 AMAQI
26th Aug 2025268 AMAQI
26th Aug 2025279 AMAQI
26th Aug 20253210 AMAQI
26th Aug 20252911 AMAQI
26th Aug 20253412 PMAQI
26th Aug 2025331 PMAQI
26th Aug 2025282 PMAQI
26th Aug 2025283 PMAQI
26th Aug 2025304 PMAQI
26th Aug 2025245 PMAQI
26th Aug 2025296 PMAQI
26th Aug 2025407 PMAQI
26th Aug 2025358 PMAQI
26th Aug 2025379 PMAQI
26th Aug 20253210 PMAQI
26th Aug 20253411 PMAQI
27th Aug 20253812 AMAQI
27th Aug 2025381 AMAQI
27th Aug 2025402 AMAQI
27th Aug 2025383 AMAQI
27th Aug 2025374 AMAQI
27th Aug 2025365 AMAQI
27°C25/29°C
27th Aug 2025366 AMAQI
27th Aug 2025357 AMAQI
27th Aug 2025368 AMAQI
27th Aug 2025439 AMAQI
27th Aug 20255010 AMAQI
27th Aug 20255111 AMAQI
27th Aug 20254912 PMAQI
27th Aug 2025321 PMAQI
27th Aug 2025362 PMAQI
27th Aug 2025353 PMAQI
27th Aug 2025324 PMAQI
27th Aug 2025325 PMAQI
27th Aug 2025306 PMAQI
27th Aug 2025357 PMAQI
27th Aug 2025348 PMAQI
27th Aug 2025439 PMAQI
27th Aug 20253510 PMAQI
27th Aug 20253611 PMAQI
28th Aug 20253512 AMAQI
28th Aug 2025371 AMAQI
28th Aug 2025372 AMAQI
28th Aug 2025383 AMAQI
28th Aug 2025394 AMAQI
28th Aug 2025385 AMAQI
27°C25/30°C
28th Aug 2025396 AMAQI
28th Aug 2025397 AMAQI
28th Aug 2025478 AMAQI
28th Aug 2025509 AMAQI
28th Aug 20254210 AMAQI
28th Aug 20253811 AMAQI
28th Aug 20253812 PMAQI
28th Aug 2025411 PMAQI
28th Aug 2025322 PMAQI
28th Aug 2025403 PMAQI
28th Aug 2025494 PMAQI
28th Aug 2025455 PMAQI
28th Aug 2025456 PMAQI
28th Aug 2025427 PMAQI
28th Aug 2025368 PMAQI
28th Aug 2025369 PMAQI
28th Aug 20253610 PMAQI
28th Aug 20253511 PMAQI
29th Aug 20253612 AMAQI
29th Aug 2025461 AMAQI
29th Aug 2025462 AMAQI
29th Aug 2025443 AMAQI
29th Aug 2025464 AMAQI
29th Aug 2025465 AMAQI
26°C24/31°C
29th Aug 2025476 AMAQI
29th Aug 2025467 AMAQI
29th Aug 2025538 AMAQI
29th Aug 2025369 AMAQI
29th Aug 20254010 AMAQI
29th Aug 20253611 AMAQI
29th Aug 20254612 PMAQI
29th Aug 2025351 PMAQI
29th Aug 2025352 PMAQI
29th Aug 2025333 PMAQI
29th Aug 2025344 PMAQI
29th Aug 2025365 PMAQI
29th Aug 2025466 PMAQI
29th Aug 2025467 PMAQI
29th Aug 2025468 PMAQI
29th Aug 2025379 PMAQI
29th Aug 20254010 PMAQI
29th Aug 20254211 PMAQI
30th Aug 20254012 AMAQI
30th Aug 2025461 AMAQI
30th Aug 2025462 AMAQI
30th Aug 2025443 AMAQI
30th Aug 2025434 AMAQI
30th Aug 2025435 AMAQI
26°C24/28°C
30th Aug 2025426 AMAQI
30th Aug 2025437 AMAQI
30th Aug 2025308 AMAQI
30th Aug 2025309 AMAQI
30th Aug 20253810 AMAQI
30th Aug 20254211 AMAQI
30th Aug 20254012 PMAQI
30th Aug 2025331 PMAQI
30th Aug 2025282 PMAQI
30th Aug 2025343 PMAQI
30th Aug 2025314 PMAQI
30th Aug 2025365 PMAQI
30th Aug 2025356 PMAQI
30th Aug 2025447 PMAQI
30th Aug 2025428 PMAQI
30th Aug 2025399 PMAQI
30th Aug 20254210 PMAQI
30th Aug 20253611 PMAQI
31st Aug 20254212 AMAQI
31st Aug 2025421 AMAQI
31st Aug 2025492 AMAQI
31st Aug 2025443 AMAQI
31st Aug 2025394 AMAQI
31st Aug 2025405 AMAQI
27°C26/29°C
31st Aug 2025426 AMAQI
31st Aug 2025417 AMAQI
31st Aug 2025398 AMAQI
31st Aug 2025209 AMAQI
31st Aug 20253410 AMAQI
31st Aug 20253311 AMAQI
31st Aug 20253112 PMAQI
31st Aug 2025301 PMAQI
31st Aug 2025262 PMAQI
31st Aug 2025343 PMAQI
31st Aug 2025344 PMAQI
31st Aug 2025305 PMAQI
31st Aug 2025376 PMAQI
31st Aug 2025407 PMAQI
31st Aug 2025388 PMAQI
31st Aug 2025369 PMAQI
31st Aug 20253910 PMAQI
31st Aug 20254411 PMAQI
1st Sep 20253612 AMAQI
1st Sep 2025391 AMAQI
1st Sep 2025442 AMAQI
1st Sep 2025433 AMAQI
1st Sep 2025404 AMAQI
1st Sep 2025425 AMAQI
27°C25/30°C
1st Sep 2025486 AMAQI
1st Sep 2025467 AMAQI
1st Sep 2025268 AMAQI
1st Sep 2025339 AMAQI
1st Sep 20252810 AMAQI
1st Sep 20252911 AMAQI
1st Sep 20252712 PMAQI
1st Sep 2025341 PMAQI
1st Sep 2025262 PMAQI
1st Sep 2025303 PMAQI
1st Sep 2025314 PMAQI
1st Sep 2025305 PMAQI
1st Sep 2025336 PMAQI
1st Sep 2025307 PMAQI
1st Sep 2025368 PMAQI
1st Sep 2025369 PMAQI
1st Sep 20253510 PMAQI
1st Sep 20254011 PMAQI
2nd Sep 20253812 AMAQI
2nd Sep 2025401 AMAQI
2nd Sep 2025412 AMAQI
2nd Sep 2025413 AMAQI
2nd Sep 2025404 AMAQI
2nd Sep 2025405 AMAQI
27°C25/30°C
2nd Sep 2025396 AMAQI
2nd Sep 2025457 AMAQI
2nd Sep 2025368 AMAQI
2nd Sep 2025429 AMAQI
2nd Sep 20253410 AMAQI
2nd Sep 20252511 AMAQI
2nd Sep 20251912 PMAQI
2nd Sep 2025281 PMAQI
2nd Sep 2025342 PMAQI
2nd Sep 2025263 PMAQI
2nd Sep 2025334 PMAQI
2nd Sep 2025315 PMAQI
2nd Sep 2025326 PMAQI
2nd Sep 2025377 PMAQI
2nd Sep 2025328 PMAQI
2nd Sep 2025399 PMAQI
2nd Sep 20253910 PMAQI
2nd Sep 20254011 PMAQI
3rd Sep 20254212 AMAQI
3rd Sep 2025381 AMAQI
3rd Sep 2025462 AMAQI
3rd Sep 2025443 AMAQI
3rd Sep 2025414 AMAQI
3rd Sep 2025385 AMAQI
27°C24/31°C
3rd Sep 2025396 AMAQI
3rd Sep 2025387 AMAQI
3rd Sep 2025318 AMAQI
3rd Sep 2025419 AMAQI
3rd Sep 20254010 AMAQI
3rd Sep 20254211 AMAQI
3rd Sep 20253412 PMAQI
3rd Sep 2025341 PMAQI
3rd Sep 2025342 PMAQI
3rd Sep 2025313 PMAQI
3rd Sep 2025284 PMAQI
3rd Sep 2025365 PMAQI
3rd Sep 2025296 PMAQI
3rd Sep 2025337 PMAQI
3rd Sep 2025398 PMAQI
3rd Sep 2025379 PMAQI
3rd Sep 20254210 PMAQI
3rd Sep 20253811 PMAQI
4th Sep 20253612 AMAQI
4th Sep 2025431 AMAQI
4th Sep 2025422 AMAQI
4th Sep 2025413 AMAQI
4th Sep 2025384 AMAQI
4th Sep 2025405 AMAQI
28°C24/31°C
4th Sep 2025396 AMAQI
4th Sep 2025387 AMAQI
4th Sep 2025458 AMAQI
4th Sep 2025339 AMAQI
4th Sep 20253710 AMAQI
4th Sep 20254811 AMAQI
4th Sep 20253212 PMAQI
4th Sep 2025341 PMAQI
4th Sep 2025322 PMAQI
4th Sep 2025303 PMAQI
4th Sep 2025414 PMAQI
4th Sep 2025475 PMAQI
4th Sep 2025546 PMAQI
4th Sep 2025547 PMAQI
4th Sep 2025548 PMAQI
4th Sep 2025469 PMAQI
4th Sep 20253810 PMAQI
4th Sep 20254411 PMAQI
5th Sep 20254812 AMAQI
5th Sep 2025361 AMAQI
5th Sep 2025362 AMAQI
5th Sep 2025373 AMAQI
5th Sep 2025384 AMAQI
5th Sep 2025425 AMAQI
28°C25/31°C
5th Sep 2025406 AMAQI
5th Sep 2025407 AMAQI
5th Sep 2025388 AMAQI
5th Sep 2025349 AMAQI
5th Sep 20253210 AMAQI
5th Sep 20253511 AMAQI
5th Sep 20254512 PMAQI
5th Sep 2025401 PMAQI
5th Sep 2025462 PMAQI
5th Sep 2025393 PMAQI
5th Sep 2025314 PMAQI
5th Sep 2025375 PMAQI
5th Sep 2025356 PMAQI
5th Sep 2025337 PMAQI
5th Sep 2025358 PMAQI
5th Sep 2025419 PMAQI
5th Sep 20254010 PMAQI
5th Sep 20253611 PMAQI
6th Sep 20253212 AMAQI
6th Sep 2025341 AMAQI
6th Sep 2025412 AMAQI
6th Sep 2025383 AMAQI
6th Sep 2025384 AMAQI
6th Sep 2025385 AMAQI
28°C25/31°C
6th Sep 2025376 AMAQI
6th Sep 2025367 AMAQI
6th Sep 2025298 AMAQI
6th Sep 2025429 AMAQI
6th Sep 20253510 AMAQI
6th Sep 20253411 AMAQI
6th Sep 20253712 PMAQI
6th Sep 2025341 PMAQI
6th Sep 2025272 PMAQI
6th Sep 2025303 PMAQI
6th Sep 2025334 PMAQI
6th Sep 2025265 PMAQI
6th Sep 2025286 PMAQI
6th Sep 2025297 PMAQI
6th Sep 2025308 PMAQI
6th Sep 2025399 PMAQI
6th Sep 20253110 PMAQI
6th Sep 20253611 PMAQI
7th Sep 20253912 AMAQI
7th Sep 2025351 AMAQI
7th Sep 2025362 AMAQI
7th Sep 2025363 AMAQI
7th Sep 2025344 AMAQI
7th Sep 2025345 AMAQI
28°C25/31°C
7th Sep 2025346 AMAQI
7th Sep 2025367 AMAQI
7th Sep 2025458 AMAQI
7th Sep 2025489 AMAQI
7th Sep 20255010 AMAQI
7th Sep 20254811 AMAQI
7th Sep 20254112 PMAQI
7th Sep 2025581 PMAQI
7th Sep 2025582 PMAQI
7th Sep 2025523 PMAQI
7th Sep 2025544 PMAQI
7th Sep 2025495 PMAQI
7th Sep 2025586 PMAQI
7th Sep 2025537 PMAQI
7th Sep 2025548 PMAQI
7th Sep 2025519 PMAQI
7th Sep 20255110 PMAQI
7th Sep 20254611 PMAQI
8th Sep 20254212 AMAQI
8th Sep 2025361 AMAQI
8th Sep 2025362 AMAQI
8th Sep 2025383 AMAQI
8th Sep 2025394 AMAQI
8th Sep 2025405 AMAQI
27°C25/30°C
8th Sep 2025386 AMAQI
8th Sep 2025397 AMAQI
8th Sep 2025408 AMAQI
8th Sep 2025419 AMAQI
8th Sep 20253110 AMAQI
8th Sep 20254111 AMAQI
8th Sep 20253812 PMAQI
8th Sep 2025391 PMAQI
8th Sep 2025382 PMAQI
8th Sep 2025293 PMAQI
8th Sep 2025354 PMAQI
8th Sep 2025395 PMAQI
8th Sep 2025426 PMAQI
8th Sep 2025397 PMAQI
8th Sep 2025408 PMAQI
8th Sep 2025439 PMAQI
8th Sep 20253810 PMAQI
8th Sep 20254011 PMAQI
9th Sep 20254312 AMAQI
9th Sep 2025401 AMAQI
9th Sep 2025382 AMAQI
9th Sep 2025383 AMAQI
9th Sep 2025404 AMAQI
9th Sep 2025395 AMAQI
27°C24/30°C
9th Sep 2025386 AMAQI
9th Sep 2025397 AMAQI
9th Sep 2025308 AMAQI
9th Sep 2025329 AMAQI
9th Sep 20253510 AMAQI
9th Sep 20253311 AMAQI
9th Sep 20253412 PMAQI
9th Sep 2025321 PMAQI
9th Sep 2025342 PMAQI
9th Sep 2025333 PMAQI
9th Sep 2025344 PMAQI
9th Sep 2025365 PMAQI
9th Sep 2025336 PMAQI
9th Sep 2025387 PMAQI
9th Sep 2025358 PMAQI
9th Sep 2025369 PMAQI
9th Sep 20253610 PMAQI
9th Sep 20253411 PMAQI
10th Sep 20253812 AMAQI
10th Sep 2025401 AMAQI
10th Sep 2025412 AMAQI
10th Sep 2025413 AMAQI
10th Sep 2025384 AMAQI
10th Sep 2025375 AMAQI
27°C25/32°C
10th Sep 2025376 AMAQI
10th Sep 2025387 AMAQI
10th Sep 2025308 AMAQI
10th Sep 2025279 AMAQI
10th Sep 20253010 AMAQI
10th Sep 20252811 AMAQI
10th Sep 20252812 PMAQI
10th Sep 2025281 PMAQI
10th Sep 2025302 PMAQI
10th Sep 2025293 PMAQI
10th Sep 2025324 PMAQI
10th Sep 2025335 PMAQI
10th Sep 2025396 PMAQI
10th Sep 2025367 PMAQI
10th Sep 2025368 PMAQI
10th Sep 2025399 PMAQI
10th Sep 20253610 PMAQI
10th Sep 20253411 PMAQI
11th Sep 20253712 AMAQI
11th Sep 2025381 AMAQI
11th Sep 2025382 AMAQI
11th Sep 2025363 AMAQI
11th Sep 2025374 AMAQI
11th Sep 2025365 AMAQI
27°C25/32°C
11th Sep 2025356 AMAQI
11th Sep 2025357 AMAQI
11th Sep 2025258 AMAQI
11th Sep 2025309 AMAQI
11th Sep 20253210 AMAQI
11th Sep 20253211 AMAQI
11th Sep 20252612 PMAQI
11th Sep 2025281 PMAQI
11th Sep 2025302 PMAQI
11th Sep 2025313 PMAQI
11th Sep 2025264 PMAQI
11th Sep 2025265 PMAQI
11th Sep 2025366 PMAQI
11th Sep 2025317 PMAQI
11th Sep 2025328 PMAQI
11th Sep 2025359 PMAQI
11th Sep 20253410 PMAQI
11th Sep 20253211 PMAQI
12th Sep 20253512 AMAQI
12th Sep 2025361 AMAQI
12th Sep 2025372 AMAQI
12th Sep 2025363 AMAQI
12th Sep 2025344 AMAQI
12th Sep 2025365 AMAQI
27°C24/31°C
12th Sep 2025356 AMAQI
12th Sep 2025357 AMAQI
12th Sep 2025348 AMAQI
12th Sep 2025289 AMAQI
12th Sep 20253110 AMAQI
12th Sep 20252511 AMAQI
12th Sep 20253012 PMAQI
12th Sep 2025291 PMAQI
12th Sep 2025392 PMAQI
12th Sep 2025313 PMAQI
12th Sep 2025304 PMAQI
12th Sep 2025285 PMAQI
12th Sep 2025326 PMAQI
12th Sep 2025307 PMAQI
12th Sep 2025358 PMAQI
12th Sep 2025339 PMAQI
12th Sep 20253210 PMAQI
12th Sep 20253311 PMAQI
13th Sep 20253312 AMAQI
13th Sep 2025371 AMAQI
13th Sep 2025352 AMAQI
13th Sep 2025333 AMAQI
13th Sep 2025354 AMAQI
13th Sep 2025345 AMAQI
27°C24/31°C
13th Sep 2025346 AMAQI
13th Sep 2025347 AMAQI
13th Sep 2025398 AMAQI
13th Sep 2025359 AMAQI
13th Sep 20253310 AMAQI
13th Sep 20253011 AMAQI
13th Sep 20252912 PMAQI
13th Sep 2025251 PMAQI
13th Sep 2025302 PMAQI
13th Sep 2025273 PMAQI
13th Sep 2025284 PMAQI
13th Sep 2025285 PMAQI
13th Sep 2025256 PMAQI
13th Sep 2025327 PMAQI
13th Sep 2025328 PMAQI
13th Sep 2025309 PMAQI
13th Sep 20253110 PMAQI
13th Sep 20253011 PMAQI
14th Sep 20252912 AMAQI
14th Sep 2025341 AMAQI
14th Sep 2025342 AMAQI
14th Sep 2025343 AMAQI
14th Sep 2025354 AMAQI
14th Sep 2025345 AMAQI
27°C25/30°C
14th Sep 2025346 AMAQI
14th Sep 2025347 AMAQI
14th Sep 2025318 AMAQI
14th Sep 2025259 AMAQI
14th Sep 20253210 AMAQI
14th Sep 20253211 AMAQI
14th Sep 20252612 PMAQI
14th Sep 2025251 PMAQI
14th Sep 2025252 PMAQI
14th Sep 2025253 PMAQI
14th Sep 2025264 PMAQI
14th Sep 2025265 PMAQI
14th Sep 2025226 PMAQI
14th Sep 2025327 PMAQI
14th Sep 2025308 PMAQI
14th Sep 2025359 PMAQI
14th Sep 20253110 PMAQI
14th Sep 20253211 PMAQI
15th Sep 20253312 AMAQI
15th Sep 2025341 AMAQI
15th Sep 2025342 AMAQI
15th Sep 2025323 AMAQI
15th Sep 2025324 AMAQI
15th Sep 2025325 AMAQI
27°C24/31°C
15th Sep 2025326 AMAQI
15th Sep 2025327 AMAQI
15th Sep 2025368 AMAQI
15th Sep 2025389 AMAQI
15th Sep 20253510 AMAQI
15th Sep 20253411 AMAQI
15th Sep 20252412 PMAQI
15th Sep 2025271 PMAQI
15th Sep 2025242 PMAQI
15th Sep 2025243 PMAQI
15th Sep 2025204 PMAQI
15th Sep 2025235 PMAQI
15th Sep 2025216 PMAQI
15th Sep 2025277 PMAQI
15th Sep 2025328 PMAQI
15th Sep 2025329 PMAQI
15th Sep 20253010 PMAQI
15th Sep 20253011 PMAQI
16th Sep 20253312 AMAQI
16th Sep 2025331 AMAQI
16th Sep 2025342 AMAQI
16th Sep 2025323 AMAQI
16th Sep 2025324 AMAQI
16th Sep 2025325 AMAQI
27°C24/31°C
16th Sep 2025336 AMAQI
16th Sep 2025337 AMAQI
16th Sep 2025298 AMAQI
16th Sep 2025289 AMAQI
16th Sep 20253010 AMAQI
16th Sep 20252911 AMAQI
16th Sep 20252812 PMAQI
16th Sep 2025281 PMAQI
16th Sep 2025232 PMAQI
16th Sep 2025233 PMAQI
16th Sep 2025244 PMAQI
16th Sep 2025235 PMAQI
16th Sep 2025266 PMAQI
16th Sep 2025277 PMAQI
16th Sep 2025308 PMAQI
16th Sep 2025309 PMAQI
16th Sep 20253010 PMAQI
16th Sep 20253111 PMAQI
17th Sep 20253112 AMAQI
17th Sep 2025331 AMAQI
17th Sep 2025332 AMAQI
17th Sep 2025323 AMAQI
17th Sep 2025324 AMAQI
17th Sep 2025325 AMAQI
26°C24/30°C
17th Sep 2025326 AMAQI
17th Sep 2025327 AMAQI
17th Sep 2025308 AMAQI
17th Sep 2025309 AMAQI
17th Sep 20253110 AMAQI
17th Sep 20252411 AMAQI
17th Sep 20252412 PMAQI
17th Sep 2025221 PMAQI
17th Sep 2025232 PMAQI
17th Sep 2025263 PMAQI
17th Sep 2025204 PMAQI
17th Sep 2025305 PMAQI
17th Sep 2025246 PMAQI
17th Sep 2025337 PMAQI
17th Sep 2025308 PMAQI
17th Sep 2025309 PMAQI
17th Sep 20253110 PMAQI
17th Sep 20253011 PMAQI
18th Sep 20253112 AMAQI
18th Sep 2025311 AMAQI
18th Sep 2025332 AMAQI
18th Sep 2025323 AMAQI
18th Sep 2025314 AMAQI
18th Sep 2025325 AMAQI
27°C24/31°C
18th Sep 2025316 AMAQI
18th Sep 2025327 AMAQI
18th Sep 2025298 AMAQI
18th Sep 2025329 AMAQI
18th Sep 20252710 AMAQI
18th Sep 20252811 AMAQI
18th Sep 20252612 PMAQI
18th Sep 2025331 PMAQI
18th Sep 2025262 PMAQI
18th Sep 2025273 PMAQI
18th Sep 2025274 PMAQI
18th Sep 2025245 PMAQI
18th Sep 2025286 PMAQI
18th Sep 2025287 PMAQI
18th Sep 2025318 PMAQI
18th Sep 2025319 PMAQI
18th Sep 20253010 PMAQI
18th Sep 20253011 PMAQI
19th Sep 20253112 AMAQI
19th Sep 2025321 AMAQI
19th Sep 2025322 AMAQI
19th Sep 2025323 AMAQI
19th Sep 2025324 AMAQI
19th Sep 2025315 AMAQI
26°C24/28°C
19th Sep 2025316 AMAQI
19th Sep 2025307 AMAQI
19th Sep 2025258 AMAQI
19th Sep 2025269 AMAQI
19th Sep 20252710 AMAQI
19th Sep 20252711 AMAQI
19th Sep 20252812 PMAQI
19th Sep 2025221 PMAQI
19th Sep 2025232 PMAQI
19th Sep 2025223 PMAQI
19th Sep 2025224 PMAQI
19th Sep 2025245 PMAQI
19th Sep 2025246 PMAQI
19th Sep 2025267 PMAQI
19th Sep 2025288 PMAQI
19th Sep 2025299 PMAQI
19th Sep 20253310 PMAQI
19th Sep 20253711 PMAQI
20th Sep 20253612 AMAQI
20th Sep 2025301 AMAQI
20th Sep 2025322 AMAQI
20th Sep 2025333 AMAQI
20th Sep 2025344 AMAQI
20th Sep 2025355 AMAQI
27°C24/32°C
20th Sep 2025346 AMAQI
20th Sep 2025347 AMAQI
20th Sep 2025328 AMAQI
20th Sep 2025349 AMAQI
20th Sep 20253310 AMAQI
20th Sep 20253211 AMAQI
20th Sep 20253212 PMAQI
20th Sep 2025331 PMAQI
20th Sep 2025302 PMAQI
20th Sep 2025273 PMAQI
20th Sep 2025274 PMAQI
20th Sep 2025315 PMAQI
20th Sep 2025326 PMAQI
20th Sep 2025377 PMAQI
20th Sep 2025388 PMAQI
20th Sep 2025409 PMAQI
20th Sep 20254210 PMAQI
20th Sep 20254711 PMAQI
21st Sep 20253812 AMAQI
21st Sep 2025331 AMAQI
21st Sep 2025342 AMAQI
21st Sep 2025343 AMAQI
21st Sep 2025334 AMAQI
21st Sep 2025345 AMAQI
28°C24/33°C
21st Sep 2025346 AMAQI
21st Sep 2025347 AMAQI
21st Sep 2025428 AMAQI
21st Sep 2025279 AMAQI
21st Sep 20252510 AMAQI
21st Sep 20251811 AMAQI
21st Sep 20251812 PMAQI
21st Sep 2025181 PMAQI
21st Sep 2025182 PMAQI
21st Sep 2025173 PMAQI
21st Sep 2025174 PMAQI
21st Sep 2025175 PMAQI
21st Sep 2025166 PMAQI
21st Sep 2025217 PMAQI
21st Sep 2025298 PMAQI
21st Sep 2025309 PMAQI
21st Sep 20253010 PMAQI
21st Sep 20252611 PMAQI
22nd Sep 20252612 AMAQI
22nd Sep 2025341 AMAQI
22nd Sep 2025352 AMAQI
22nd Sep 2025343 AMAQI
22nd Sep 2025334 AMAQI
22nd Sep 2025325 AMAQI
27°C25/31°C
22nd Sep 2025326 AMAQI
6 AM22nd Sep 2025347 AMAQI
22nd Sep 2025328 AMAQI
22nd Sep 2025359 AMAQI
22nd Sep 20253410 AMAQI
22nd Sep 20252611 AMAQI
22nd Sep 20252312 PMAQI
12 PM22nd Sep 2025251 PMAQI
22nd Sep 2025242 PMAQI
22nd Sep 2025263 PMAQI
22nd Sep 2025344 PMAQI
22nd Sep 2025265 PMAQI
22nd Sep 2025286 PMAQI
6 PM22nd Sep 2025307 PMAQI
22nd Sep 2025268 PMAQI
22nd Sep 2025269 PMAQI
22nd Sep 20252610 PMAQI
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 7 AM
37AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 PM - 3 PM
30AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 37), while the lowest AQI was between 2 PM to 3 PM (Avg. 30).
Night time
Avg. Highest Time
12 AM - 5 AM
37AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
7 PM - 11 PM
36AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 37), while the lowest AQI was between 7 PM to 11 PM (Avg. 36).
2025 Days Vs Air Quality
Boao guo Guest House Station, Jiaji, Hainan, China
2025
55%
144
43%
113
3%
7
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Good
144 DaysModerate
113 DaysPoor
7 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 55%
Health Risk Level:
Considerable
In 2025, 55% of 265 days were within WHO’s safe air quality limits, and 45% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Boao guo Guest House Station, Jiaji, 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
99AQI
99AQI
2nd January 2025
69AQI
69AQI
3rd January 2025
82AQI
82AQI
4th January 2025
96AQI
96AQI
5th January 2025
112AQI
112AQI
6th January 2025
116AQI
116AQI
7th January 2025
93AQI
93AQI
8th January 2025
94AQI
94AQI
9th January 2025
112AQI
112AQI
10th January 2025
110AQI
110AQI
11th January 2025
92AQI
92AQI
12th January 2025
85AQI
85AQI
13th January 2025
78AQI
78AQI
14th January 2025
75AQI
75AQI
15th January 2025
86AQI
86AQI
16th January 2025
95AQI
95AQI
17th January 2025
90AQI
90AQI
18th January 2025
87AQI
87AQI
19th January 2025
93AQI
93AQI
20th January 2025
89AQI
89AQI
21st January 2025
81AQI
81AQI
22nd January 2025
90AQI
90AQI
23rd January 2025
76AQI
76AQI
24th January 2025
63AQI
63AQI
25th January 2025
63AQI
63AQI
26th January 2025
57AQI
57AQI
27th January 2025
60AQI
60AQI
28th January 2025
68AQI
68AQI
29th January 2025
93AQI
93AQI
30th January 2025
71AQI
71AQI
31st January 2025
63AQI
63AQI
1st February 2025
48AQI
48AQI
2nd February 2025
47AQI
47AQI
3rd February 2025
49AQI
49AQI
4th February 2025
52AQI
52AQI
5th February 2025
54AQI
54AQI
6th February 2025
57AQI
57AQI
7th February 2025
71AQI
71AQI
8th February 2025
59AQI
59AQI
9th February 2025
69AQI
69AQI
10th February 2025
59AQI
59AQI
11th February 2025
59AQI
59AQI
12th February 2025
46AQI
46AQI
13th February 2025
63AQI
63AQI
14th February 2025
46AQI
46AQI
15th February 2025
67AQI
67AQI
16th February 2025
48AQI
48AQI
17th February 2025
66AQI
66AQI
18th February 2025
80AQI
80AQI
19th February 2025
69AQI
69AQI
20th February 2025
67AQI
67AQI
21st February 2025
60AQI
60AQI
22nd February 2025
47AQI
47AQI
23rd February 2025
50AQI
50AQI
24th February 2025
50AQI
50AQI
25th February 2025
53AQI
53AQI
26th February 2025
67AQI
67AQI
27th February 2025
61AQI
61AQI
28th February 2025
56AQI
56AQI
1st March 2025
57AQI
57AQI
2nd March 2025
53AQI
53AQI
3rd March 2025
56AQI
56AQI
4th March 2025
47AQI
47AQI
5th March 2025
49AQI
49AQI
6th March 2025
31AQI
31AQI
7th March 2025
41AQI
41AQI
8th March 2025
32AQI
32AQI
9th March 2025
58AQI
58AQI
10th March 2025
66AQI
66AQI
11th March 2025
59AQI
59AQI
12th March 2025
51AQI
51AQI
13th March 2025
44AQI
44AQI
14th March 2025
37AQI
37AQI
15th March 2025
50AQI
50AQI
16th March 2025
47AQI
47AQI
17th March 2025
70AQI
70AQI
18th March 2025
72AQI
72AQI
19th March 2025
81AQI
81AQI
20th March 2025
73AQI
73AQI
21st March 2025
79AQI
79AQI
22nd March 2025
77AQI
77AQI
23rd March 2025
78AQI
78AQI
24th March 2025
74AQI
74AQI
25th March 2025
76AQI
76AQI
26th March 2025
57AQI
57AQI
27th March 2025
60AQI
60AQI
28th March 2025
57AQI
57AQI
29th March 2025
56AQI
56AQI
30th March 2025
33AQI
33AQI
31st March 2025
38AQI
38AQI
1st April 2025
47AQI
47AQI
2nd April 2025
59AQI
59AQI
3rd April 2025
53AQI
53AQI
4th April 2025
55AQI
55AQI
5th April 2025
60AQI
60AQI
6th April 2025
47AQI
47AQI
7th April 2025
62AQI
62AQI
8th April 2025
54AQI
54AQI
9th April 2025
62AQI
62AQI
10th April 2025
60AQI
60AQI
11th April 2025
56AQI
56AQI
12th April 2025
57AQI
57AQI
13th April 2025
148AQI
148AQI
14th April 2025
132AQI
132AQI
15th April 2025
118AQI
118AQI
16th April 2025
100AQI
100AQI
17th April 2025
99AQI
99AQI
18th April 2025
73AQI
73AQI
19th April 2025
59AQI
59AQI
20th April 2025
61AQI
61AQI
21st April 2025
58AQI
58AQI
22nd April 2025
61AQI
61AQI
23rd April 2025
54AQI
54AQI
24th April 2025
60AQI
60AQI
25th April 2025
52AQI
52AQI
26th April 2025
54AQI
54AQI
27th April 2025
50AQI
50AQI
28th April 2025
55AQI
55AQI
29th April 2025
55AQI
55AQI
30th April 2025
52AQI
52AQI
1st May 2025
56AQI
56AQI
2nd May 2025
58AQI
58AQI
3rd May 2025
58AQI
58AQI
4th May 2025
59AQI
59AQI
5th May 2025
51AQI
51AQI
6th May 2025
57AQI
57AQI
7th May 2025
56AQI
56AQI
8th May 2025
49AQI
49AQI
9th May 2025
50AQI
50AQI
10th May 2025
49AQI
49AQI
11th May 2025
53AQI
53AQI
12th May 2025
59AQI
59AQI
13th May 2025
59AQI
59AQI
14th May 2025
46AQI
46AQI
15th May 2025
35AQI
35AQI
16th May 2025
33AQI
33AQI
17th May 2025
36AQI
36AQI
18th May 2025
38AQI
38AQI
19th May 2025
40AQI
40AQI
20th May 2025
42AQI
42AQI
21st May 2025
42AQI
42AQI
22nd May 2025
37AQI
37AQI
23rd May 2025
33AQI
33AQI
24th May 2025
33AQI
33AQI
25th May 2025
47AQI
47AQI
26th May 2025
66AQI
66AQI
27th May 2025
53AQI
53AQI
28th May 2025
43AQI
43AQI
29th May 2025
39AQI
39AQI
30th May 2025
42AQI
42AQI
31st May 2025
39AQI
39AQI
1st June 2025
47AQI
47AQI
2nd June 2025
46AQI
46AQI
3rd June 2025
48AQI
48AQI
4th June 2025
49AQI
49AQI
5th June 2025
44AQI
44AQI
6th June 2025
43AQI
43AQI
7th June 2025
42AQI
42AQI
8th June 2025
47AQI
47AQI
9th June 2025
50AQI
50AQI
10th June 2025
53AQI
53AQI
11th June 2025
44AQI
44AQI
12th June 2025
34AQI
34AQI
13th June 2025
38AQI
38AQI
14th June 2025
34AQI
34AQI
15th June 2025
43AQI
43AQI
16th June 2025
44AQI
44AQI
17th June 2025
42AQI
42AQI
18th June 2025
36AQI
36AQI
19th June 2025
34AQI
34AQI
20th June 2025
32AQI
32AQI
21st June 2025
33AQI
33AQI
22nd June 2025
39AQI
39AQI
23rd June 2025
29AQI
29AQI
24th June 2025
28AQI
28AQI
25th June 2025
28AQI
28AQI
26th June 2025
28AQI
28AQI
27th June 2025
25AQI
25AQI
28th June 2025
29AQI
29AQI
29th June 2025
29AQI
29AQI
30th June 2025
28AQI
28AQI
1st July 2025
32AQI
32AQI
2nd July 2025
27AQI
27AQI
3rd July 2025
29AQI
29AQI
4th July 2025
29AQI
29AQI
5th July 2025
33AQI
33AQI
6th July 2025
34AQI
34AQI
7th July 2025
35AQI
35AQI
8th July 2025
37AQI
37AQI
9th July 2025
39AQI
39AQI
10th July 2025
40AQI
40AQI
11th July 2025
47AQI
47AQI
12th July 2025
45AQI
45AQI
13th July 2025
47AQI
47AQI
14th July 2025
50AQI
50AQI
15th July 2025
52AQI
52AQI
16th July 2025
51AQI
51AQI
17th July 2025
52AQI
52AQI
18th July 2025
49AQI
49AQI
19th July 2025
49AQI
49AQI
20th July 2025
47AQI
47AQI
21st July 2025
44AQI
44AQI
22nd July 2025
42AQI
42AQI
23rd July 2025
41AQI
41AQI
24th July 2025
39AQI
39AQI
25th July 2025
42AQI
42AQI
26th July 2025
42AQI
42AQI
27th July 2025
44AQI
44AQI
28th July 2025
42AQI
42AQI
29th July 2025
40AQI
40AQI
30th July 2025
42AQI
42AQI
31st July 2025
49AQI
49AQI
1st August 2025
54AQI
54AQI
2nd August 2025
55AQI
55AQI
3rd August 2025
56AQI
56AQI
4th August 2025
56AQI
56AQI
5th August 2025
55AQI
55AQI
6th August 2025
56AQI
56AQI
7th August 2025
53AQI
53AQI
8th August 2025
50AQI
50AQI
9th August 2025
50AQI
50AQI
10th August 2025
49AQI
49AQI
11th August 2025
48AQI
48AQI
12th August 2025
48AQI
48AQI
13th August 2025
46AQI
46AQI
14th August 2025
42AQI
42AQI
15th August 2025
35AQI
35AQI
16th August 2025
34AQI
34AQI
17th August 2025
33AQI
33AQI
18th August 2025
31AQI
31AQI
19th August 2025
32AQI
32AQI
20th August 2025
34AQI
34AQI
21st August 2025
34AQI
34AQI
22nd August 2025
35AQI
35AQI
23rd August 2025
36AQI
36AQI
24th August 2025
35AQI
35AQI
25th August 2025
34AQI
34AQI
26th August 2025
34AQI
34AQI
27th August 2025
38AQI
38AQI
28th August 2025
39AQI
39AQI
29th August 2025
42AQI
42AQI
30th August 2025
39AQI
39AQI
31st August 2025
37AQI
37AQI
1st September 2025
36AQI
36AQI
2nd September 2025
36AQI
36AQI
3rd September 2025
38AQI
38AQI
4th September 2025
43AQI
43AQI
5th September 2025
41AQI
41AQI
6th September 2025
34AQI
34AQI
7th September 2025
46AQI
46AQI
8th September 2025
39AQI
39AQI
9th September 2025
36AQI
36AQI
10th September 2025
35AQI
35AQI
11th September 2025
33AQI
33AQI
12th September 2025
33AQI
33AQI
13th September 2025
32AQI
32AQI
14th September 2025
30AQI
30AQI
15th September 2025
30AQI
30AQI
16th September 2025
29AQI
29AQI
17th September 2025
29AQI
29AQI
18th September 2025
30AQI
30AQI
19th September 2025
29AQI
29AQI
20th September 2025
34AQI
34AQI
21st September 2025
28AQI
28AQI
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
85AQI
58AQI
57AQI
67AQI
47AQI
38AQI
42AQI
43AQI
34AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202553AQI
27
4
9
19
11
20
3
24
3
19
12
29
1
28
3
24
7
21
144
113
7
Highest AQI recorded in
January85AQI
Lowest AQI recorded in
September34AQI
202449AQI
4
17
10
7
8
14
14
4
20
3
30
31
29
2
22
7
16
11
4
20
10
24
7
204
99
11
Highest AQI recorded in
December86AQI
Lowest AQI recorded in
July31AQI
202359AQI
4
3
2
2
1
1
2
1
4
1
2
9
2
3
3
30
27
41
2
Highest AQI recorded in
November80AQI
Lowest AQI recorded in
June21AQI
202240AQI
5
7
29
2
26
4
13
2
1
3
6
15
10
20
3
6
6
1
118
40
1
Highest AQI recorded in
September61AQI
Lowest AQI recorded in
July30AQI
202134AQI
3
30
1
21
9
28
3
6
1
11
5
5
109
14
Highest AQI recorded in
April44AQI
Lowest AQI recorded in
October28AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2023(Avg.)
59AQILeast Polluted Year Recorded
2021(Avg.)
34AQIBoao guo Guest House Station's annual 2025 AQI (53) shows an average percentage change of 21.1% (worsened AQI) compared to previous years: 2021 (34), 2022 (40), 2023 (59), 2024 (49).
