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HistoryAQIPM2.5PM10COSO2NO2O3

Kwai Tsing District, Hong Kong, 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

Kwai Tsing District, Hong Kong, China

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
16th Sep 2022
129AQI
Lowest AQI recorded on
4th Sep 2021
20AQI

Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 34 of Good air quality, showing improvement over 2024, 2022 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 16th Sep - 17th Sep 2025

Kwai Tsing District, Hong Kong, China

AQI
Day
Night
.

6 AM16th Sep 2025

6 PM

5 AM17th Sep 2025

Day time
Avg. Highest Time
6AM16th Sep

38AQI

Avg. Lowest Time
12PM16th Sep

25AQI

Night time
Avg. Highest Time
9PM16th Sep

43AQI

Avg. Lowest Time
8PM16th Sep

35AQI

In the last 24 hours,

Kwai Tsing District's AQI reached its highest point of 43 at 9 PM during the Night, while the lowest point, 25, was recorded at 12 PM during the Day between 16th Sep and 17th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025

Kwai Tsing District, Hong Kong, China

AugSep
18th - 19th19th - 20th20th - 21st21st - 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
Day
Night
18th Aug 2025406 AMAQI
18th Aug 2025397 AMAQI
18th Aug 2025238 AMAQI
18th Aug 2025239 AMAQI
18th Aug 20251910 AMAQI
18th Aug 20252311 AMAQI
18th Aug 20253412 PMAQI
18th Aug 2025251 PMAQI
18th Aug 2025262 PMAQI
18th Aug 2025373 PMAQI
18th Aug 2025264 PMAQI
18th Aug 2025295 PMAQI
18th Aug 2025356 PMAQI
18th Aug 2025367 PMAQI
18th Aug 2025328 PMAQI
18th Aug 2025359 PMAQI
18th Aug 20254010 PMAQI
18th Aug 20253411 PMAQI
19th Aug 20253512 AMAQI
19th Aug 2025401 AMAQI
19th Aug 2025402 AMAQI
19th Aug 2025393 AMAQI
19th Aug 2025364 AMAQI
19th Aug 2025375 AMAQI

27°C26/27°C

19th Aug 2025376 AMAQI
19th Aug 2025377 AMAQI
19th Aug 2025308 AMAQI
19th Aug 2025409 AMAQI
19th Aug 20253510 AMAQI
19th Aug 20253711 AMAQI
19th Aug 20253412 PMAQI
19th Aug 2025401 PMAQI
19th Aug 2025422 PMAQI
19th Aug 2025463 PMAQI
19th Aug 2025554 PMAQI
19th Aug 2025515 PMAQI
19th Aug 2025506 PMAQI
19th Aug 2025427 PMAQI
19th Aug 2025418 PMAQI
19th Aug 2025389 PMAQI
19th Aug 20254610 PMAQI
19th Aug 20254711 PMAQI
20th Aug 20254412 AMAQI
20th Aug 2025401 AMAQI
20th Aug 2025402 AMAQI
20th Aug 2025403 AMAQI
20th Aug 2025394 AMAQI
20th Aug 2025385 AMAQI

27°C27/28°C

20th Aug 2025386 AMAQI
20th Aug 2025397 AMAQI
20th Aug 2025378 AMAQI
20th Aug 2025329 AMAQI
20th Aug 20254310 AMAQI
20th Aug 20254211 AMAQI
20th Aug 20254612 PMAQI
20th Aug 2025361 PMAQI
20th Aug 2025332 PMAQI
20th Aug 2025323 PMAQI
20th Aug 2025284 PMAQI
20th Aug 2025355 PMAQI
20th Aug 2025346 PMAQI
20th Aug 2025367 PMAQI
20th Aug 2025388 PMAQI
20th Aug 2025409 PMAQI
20th Aug 20254010 PMAQI
20th Aug 20253811 PMAQI
21st Aug 20254412 AMAQI
21st Aug 2025411 AMAQI
21st Aug 2025442 AMAQI
21st Aug 2025403 AMAQI
21st Aug 2025384 AMAQI
21st Aug 2025385 AMAQI

28°C27/29°C

21st Aug 2025406 AMAQI
21st Aug 2025407 AMAQI
21st Aug 2025298 AMAQI
21st Aug 2025369 AMAQI
21st Aug 20253910 AMAQI
21st Aug 20253911 AMAQI
21st Aug 20253412 PMAQI
21st Aug 2025381 PMAQI
21st Aug 2025362 PMAQI
21st Aug 2025373 PMAQI
21st Aug 2025354 PMAQI
21st Aug 2025395 PMAQI
21st Aug 2025346 PMAQI
21st Aug 2025397 PMAQI
21st Aug 2025388 PMAQI
21st Aug 2025459 PMAQI
21st Aug 20253710 PMAQI
21st Aug 20254211 PMAQI
22nd Aug 20254212 AMAQI
22nd Aug 2025421 AMAQI
22nd Aug 2025422 AMAQI
22nd Aug 2025423 AMAQI
22nd Aug 2025404 AMAQI
22nd Aug 2025415 AMAQI

28°C27/29°C

22nd Aug 2025396 AMAQI
22nd Aug 2025407 AMAQI
22nd Aug 2025358 AMAQI
22nd Aug 2025349 AMAQI
22nd Aug 20253410 AMAQI
22nd Aug 20253811 AMAQI
22nd Aug 20253612 PMAQI
22nd Aug 2025331 PMAQI
22nd Aug 2025402 PMAQI
22nd Aug 2025323 PMAQI
22nd Aug 2025354 PMAQI
22nd Aug 2025415 PMAQI
22nd Aug 2025436 PMAQI
22nd Aug 2025417 PMAQI
22nd Aug 2025448 PMAQI
22nd Aug 2025469 PMAQI
22nd Aug 20254410 PMAQI
22nd Aug 20254611 PMAQI
23rd Aug 20254412 AMAQI
23rd Aug 2025421 AMAQI
23rd Aug 2025422 AMAQI
23rd Aug 2025413 AMAQI
23rd Aug 2025414 AMAQI
23rd Aug 2025415 AMAQI

29°C28/30°C

23rd Aug 2025426 AMAQI
23rd Aug 2025427 AMAQI
23rd Aug 2025488 AMAQI
23rd Aug 2025529 AMAQI
23rd Aug 20255110 AMAQI
23rd Aug 20256111 AMAQI
23rd Aug 20256212 PMAQI
23rd Aug 2025621 PMAQI
23rd Aug 2025542 PMAQI
23rd Aug 2025463 PMAQI
23rd Aug 2025394 PMAQI
23rd Aug 2025345 PMAQI
23rd Aug 2025296 PMAQI
23rd Aug 2025397 PMAQI
23rd Aug 2025428 PMAQI
23rd Aug 2025449 PMAQI
23rd Aug 20254610 PMAQI
23rd Aug 20254111 PMAQI
24th Aug 20254012 AMAQI
24th Aug 2025411 AMAQI
24th Aug 2025432 AMAQI
24th Aug 2025453 AMAQI
24th Aug 2025484 AMAQI
24th Aug 2025485 AMAQI

29°C28/30°C

24th Aug 2025476 AMAQI
24th Aug 2025477 AMAQI
24th Aug 2025338 AMAQI
24th Aug 2025349 AMAQI
24th Aug 20253210 AMAQI
24th Aug 20254111 AMAQI
24th Aug 20253712 PMAQI
24th Aug 2025421 PMAQI
24th Aug 2025282 PMAQI
24th Aug 2025383 PMAQI
24th Aug 2025384 PMAQI
24th Aug 2025365 PMAQI
24th Aug 2025416 PMAQI
24th Aug 2025437 PMAQI
24th Aug 2025488 PMAQI
24th Aug 2025429 PMAQI
24th Aug 20254310 PMAQI
24th Aug 20254411 PMAQI
25th Aug 20254412 AMAQI
25th Aug 2025451 AMAQI
25th Aug 2025452 AMAQI
25th Aug 2025453 AMAQI
25th Aug 2025434 AMAQI
25th Aug 2025435 AMAQI

28°C27/29°C

25th Aug 2025436 AMAQI
25th Aug 2025447 AMAQI
25th Aug 2025368 AMAQI
25th Aug 2025269 AMAQI
25th Aug 20253010 AMAQI
25th Aug 20252811 AMAQI
25th Aug 20252412 PMAQI
25th Aug 2025321 PMAQI
25th Aug 2025342 PMAQI
25th Aug 2025323 PMAQI
25th Aug 2025304 PMAQI
25th Aug 2025325 PMAQI
25th Aug 2025406 PMAQI
25th Aug 2025417 PMAQI
25th Aug 2025418 PMAQI
25th Aug 2025429 PMAQI
25th Aug 20253810 PMAQI
25th Aug 20254011 PMAQI
26th Aug 20253612 AMAQI
26th Aug 2025461 AMAQI
26th Aug 2025442 AMAQI
26th Aug 2025433 AMAQI
26th Aug 2025424 AMAQI
26th Aug 2025425 AMAQI

28°C28/29°C

26th Aug 2025426 AMAQI
26th Aug 2025447 AMAQI
26th Aug 2025328 AMAQI
26th Aug 2025349 AMAQI
26th Aug 20253610 AMAQI
26th Aug 20253611 AMAQI
26th Aug 20253712 PMAQI
26th Aug 2025401 PMAQI
26th Aug 2025362 PMAQI
26th Aug 2025383 PMAQI
26th Aug 2025424 PMAQI
26th Aug 2025395 PMAQI
26th Aug 2025356 PMAQI
26th Aug 2025487 PMAQI
26th Aug 2025478 PMAQI
26th Aug 2025509 PMAQI
26th Aug 20255110 PMAQI
26th Aug 20255011 PMAQI
27th Aug 20255112 AMAQI
27th Aug 2025441 AMAQI
27th Aug 2025432 AMAQI
27th Aug 2025433 AMAQI
27th Aug 2025434 AMAQI
27th Aug 2025435 AMAQI

28°C28/29°C

27th Aug 2025426 AMAQI
27th Aug 2025437 AMAQI
27th Aug 2025418 AMAQI
27th Aug 2025419 AMAQI
27th Aug 20254210 AMAQI
27th Aug 20254411 AMAQI
27th Aug 20254212 PMAQI
27th Aug 2025341 PMAQI
27th Aug 2025492 PMAQI
27th Aug 2025533 PMAQI
27th Aug 2025554 PMAQI
27th Aug 2025485 PMAQI
27th Aug 2025446 PMAQI
27th Aug 2025387 PMAQI
27th Aug 2025428 PMAQI
27th Aug 2025519 PMAQI
27th Aug 20254310 PMAQI
27th Aug 20254611 PMAQI
28th Aug 20254512 AMAQI
28th Aug 2025431 AMAQI
28th Aug 2025462 AMAQI
28th Aug 2025483 AMAQI
28th Aug 2025454 AMAQI
28th Aug 2025455 AMAQI

28°C27/29°C

28th Aug 2025466 AMAQI
28th Aug 2025457 AMAQI
28th Aug 2025478 AMAQI
28th Aug 2025529 AMAQI
28th Aug 20255810 AMAQI
28th Aug 20254911 AMAQI
28th Aug 20255212 PMAQI
28th Aug 2025461 PMAQI
28th Aug 2025542 PMAQI
28th Aug 2025563 PMAQI
28th Aug 2025564 PMAQI
28th Aug 2025565 PMAQI
28th Aug 2025566 PMAQI
28th Aug 2025537 PMAQI
28th Aug 2025518 PMAQI
28th Aug 2025479 PMAQI
28th Aug 20254710 PMAQI
28th Aug 20254911 PMAQI
29th Aug 20254212 AMAQI
29th Aug 2025461 AMAQI
29th Aug 2025482 AMAQI
29th Aug 2025503 AMAQI
29th Aug 2025504 AMAQI
29th Aug 2025505 AMAQI

28°C27/29°C

29th Aug 2025506 AMAQI
29th Aug 2025507 AMAQI
29th Aug 2025348 AMAQI
29th Aug 2025319 AMAQI
29th Aug 20254010 AMAQI
29th Aug 20254811 AMAQI
29th Aug 20254812 PMAQI
29th Aug 2025441 PMAQI
29th Aug 2025512 PMAQI
29th Aug 2025413 PMAQI
29th Aug 2025434 PMAQI
29th Aug 2025445 PMAQI
29th Aug 2025416 PMAQI
29th Aug 2025487 PMAQI
29th Aug 2025488 PMAQI
29th Aug 2025529 PMAQI
29th Aug 20254710 PMAQI
29th Aug 20254911 PMAQI
30th Aug 20254812 AMAQI
30th Aug 2025481 AMAQI
30th Aug 2025502 AMAQI
30th Aug 2025503 AMAQI
30th Aug 2025494 AMAQI
30th Aug 2025495 AMAQI

28°C28/30°C

30th Aug 2025486 AMAQI
30th Aug 2025487 AMAQI
30th Aug 2025448 AMAQI
30th Aug 2025389 AMAQI
30th Aug 20253710 AMAQI
30th Aug 20253611 AMAQI
30th Aug 20254512 PMAQI
30th Aug 2025361 PMAQI
30th Aug 2025422 PMAQI
30th Aug 2025383 PMAQI
30th Aug 2025384 PMAQI
30th Aug 2025365 PMAQI
30th Aug 2025366 PMAQI
30th Aug 2025457 PMAQI
30th Aug 2025448 PMAQI
30th Aug 2025489 PMAQI
30th Aug 20254410 PMAQI
30th Aug 20254011 PMAQI
31st Aug 20254012 AMAQI
31st Aug 2025501 AMAQI
31st Aug 2025522 AMAQI
31st Aug 2025483 AMAQI
31st Aug 2025474 AMAQI
31st Aug 2025495 AMAQI

28°C27/29°C

31st Aug 2025476 AMAQI
31st Aug 2025487 AMAQI
31st Aug 2025288 AMAQI
31st Aug 2025319 AMAQI
31st Aug 20252610 AMAQI
31st Aug 20253011 AMAQI
31st Aug 20253312 PMAQI
31st Aug 2025321 PMAQI
31st Aug 2025362 PMAQI
31st Aug 2025383 PMAQI
31st Aug 2025434 PMAQI
31st Aug 2025355 PMAQI
31st Aug 2025566 PMAQI
31st Aug 2025507 PMAQI
31st Aug 2025418 PMAQI
31st Aug 2025469 PMAQI
31st Aug 20254410 PMAQI
31st Aug 20254611 PMAQI
1st Sep 20254012 AMAQI
1st Sep 2025491 AMAQI
1st Sep 2025482 AMAQI
1st Sep 2025483 AMAQI
1st Sep 2025484 AMAQI
1st Sep 2025495 AMAQI

28°C28/29°C

1st Sep 2025496 AMAQI
1st Sep 2025507 AMAQI
1st Sep 2025398 AMAQI
1st Sep 2025329 AMAQI
1st Sep 20253310 AMAQI
1st Sep 20253711 AMAQI
1st Sep 20253012 PMAQI
1st Sep 2025401 PMAQI
1st Sep 2025302 PMAQI
1st Sep 2025403 PMAQI
1st Sep 2025384 PMAQI
1st Sep 2025475 PMAQI
1st Sep 2025426 PMAQI
1st Sep 2025427 PMAQI
1st Sep 2025448 PMAQI
1st Sep 2025419 PMAQI
1st Sep 20254310 PMAQI
1st Sep 20254411 PMAQI
2nd Sep 20254312 AMAQI
2nd Sep 2025481 AMAQI
2nd Sep 2025462 AMAQI
2nd Sep 2025453 AMAQI
2nd Sep 2025454 AMAQI
2nd Sep 2025465 AMAQI

28°C27/29°C

2nd Sep 2025456 AMAQI
2nd Sep 2025457 AMAQI
2nd Sep 2025348 AMAQI
2nd Sep 2025399 AMAQI
2nd Sep 20253210 AMAQI
2nd Sep 20252411 AMAQI
2nd Sep 20252412 PMAQI
2nd Sep 2025381 PMAQI
2nd Sep 2025342 PMAQI
2nd Sep 2025303 PMAQI
2nd Sep 2025374 PMAQI
2nd Sep 2025285 PMAQI
2nd Sep 2025286 PMAQI
2nd Sep 2025407 PMAQI
2nd Sep 2025408 PMAQI
2nd Sep 2025489 PMAQI
2nd Sep 20254410 PMAQI
2nd Sep 20254911 PMAQI
3rd Sep 20254212 AMAQI
3rd Sep 2025481 AMAQI
3rd Sep 2025492 AMAQI
3rd Sep 2025453 AMAQI
3rd Sep 2025434 AMAQI
3rd Sep 2025445 AMAQI

28°C28/29°C

3rd Sep 2025436 AMAQI
3rd Sep 2025437 AMAQI
3rd Sep 2025278 AMAQI
3rd Sep 2025319 AMAQI
3rd Sep 20253010 AMAQI
3rd Sep 20253311 AMAQI
3rd Sep 20253612 PMAQI
3rd Sep 2025351 PMAQI
3rd Sep 2025432 PMAQI
3rd Sep 2025373 PMAQI
3rd Sep 2025294 PMAQI
3rd Sep 2025335 PMAQI
3rd Sep 2025336 PMAQI
3rd Sep 2025367 PMAQI
3rd Sep 2025408 PMAQI
3rd Sep 2025439 PMAQI
3rd Sep 20254410 PMAQI
3rd Sep 20253411 PMAQI
4th Sep 20254012 AMAQI
4th Sep 2025481 AMAQI
4th Sep 2025482 AMAQI
4th Sep 2025463 AMAQI
4th Sep 2025444 AMAQI
4th Sep 2025445 AMAQI

29°C27/30°C

4th Sep 2025446 AMAQI
4th Sep 2025457 AMAQI
4th Sep 2025388 AMAQI
4th Sep 2025389 AMAQI
4th Sep 20253410 AMAQI
4th Sep 20253611 AMAQI
4th Sep 20253912 PMAQI
4th Sep 2025361 PMAQI
4th Sep 2025282 PMAQI
4th Sep 2025373 PMAQI
4th Sep 2025324 PMAQI
4th Sep 2025305 PMAQI
4th Sep 2025326 PMAQI
4th Sep 2025287 PMAQI
4th Sep 2025288 PMAQI
4th Sep 2025339 PMAQI
4th Sep 20253110 PMAQI
4th Sep 20251711 PMAQI
5th Sep 20252312 AMAQI
5th Sep 2025461 AMAQI
5th Sep 2025462 AMAQI
5th Sep 2025443 AMAQI
5th Sep 2025444 AMAQI
5th Sep 2025435 AMAQI

29°C28/30°C

5th Sep 2025436 AMAQI
5th Sep 2025437 AMAQI
5th Sep 2025348 AMAQI
5th Sep 2025319 AMAQI
5th Sep 20252210 AMAQI
5th Sep 20253411 AMAQI
5th Sep 20253212 PMAQI
5th Sep 2025381 PMAQI
5th Sep 2025322 PMAQI
5th Sep 2025363 PMAQI
5th Sep 2025304 PMAQI
5th Sep 2025405 PMAQI
5th Sep 2025306 PMAQI
5th Sep 2025367 PMAQI
5th Sep 2025418 PMAQI
5th Sep 2025409 PMAQI
5th Sep 20254710 PMAQI
5th Sep 20253811 PMAQI
6th Sep 20253412 AMAQI
6th Sep 2025341 AMAQI
6th Sep 2025382 AMAQI
6th Sep 2025393 AMAQI
6th Sep 2025404 AMAQI
6th Sep 2025385 AMAQI

29°C28/30°C

6th Sep 2025376 AMAQI
6th Sep 2025367 AMAQI
6th Sep 2025278 AMAQI
6th Sep 2025399 AMAQI
6th Sep 20252610 AMAQI
6th Sep 20254511 AMAQI
6th Sep 20254412 PMAQI
6th Sep 2025411 PMAQI
6th Sep 2025382 PMAQI
6th Sep 2025443 PMAQI
6th Sep 2025444 PMAQI
6th Sep 2025565 PMAQI
6th Sep 2025586 PMAQI
6th Sep 2025527 PMAQI
6th Sep 2025538 PMAQI
6th Sep 2025529 PMAQI
6th Sep 20254910 PMAQI
6th Sep 20254411 PMAQI
7th Sep 20254412 AMAQI
7th Sep 2025361 AMAQI
7th Sep 2025372 AMAQI
7th Sep 2025423 AMAQI
7th Sep 2025374 AMAQI
7th Sep 2025395 AMAQI

29°C29/30°C

7th Sep 2025396 AMAQI
7th Sep 2025387 AMAQI
7th Sep 2025408 AMAQI
7th Sep 2025549 AMAQI
7th Sep 20253410 AMAQI
7th Sep 20253211 AMAQI
7th Sep 20254312 PMAQI
7th Sep 2025441 PMAQI
7th Sep 2025372 PMAQI
7th Sep 2025373 PMAQI
7th Sep 2025324 PMAQI
7th Sep 2025255 PMAQI
7th Sep 2025326 PMAQI
7th Sep 2025367 PMAQI
7th Sep 2025388 PMAQI
7th Sep 2025339 PMAQI
7th Sep 20253510 PMAQI
7th Sep 20253111 PMAQI
8th Sep 20253412 AMAQI
8th Sep 2025401 AMAQI
8th Sep 2025402 AMAQI
8th Sep 2025373 AMAQI
8th Sep 2025404 AMAQI
8th Sep 2025405 AMAQI

28°C26/29°C

8th Sep 2025406 AMAQI
8th Sep 2025407 AMAQI
8th Sep 2025248 AMAQI
8th Sep 2025249 AMAQI
8th Sep 20252210 AMAQI
8th Sep 20252011 AMAQI
8th Sep 20252012 PMAQI
8th Sep 2025241 PMAQI
8th Sep 2025232 PMAQI
8th Sep 2025233 PMAQI
8th Sep 2025244 PMAQI
8th Sep 2025245 PMAQI
8th Sep 2025236 PMAQI
8th Sep 2025347 PMAQI
8th Sep 2025418 PMAQI
8th Sep 2025429 PMAQI
8th Sep 20254310 PMAQI
8th Sep 20253911 PMAQI
9th Sep 20253512 AMAQI
9th Sep 2025421 AMAQI
9th Sep 2025412 AMAQI
9th Sep 2025393 AMAQI
9th Sep 2025384 AMAQI
9th Sep 2025355 AMAQI

28°C27/28°C

9th Sep 2025346 AMAQI
9th Sep 2025367 AMAQI
9th Sep 2025328 AMAQI
9th Sep 2025309 AMAQI
9th Sep 20253410 AMAQI
9th Sep 20253311 AMAQI
9th Sep 20253212 PMAQI
9th Sep 2025341 PMAQI
9th Sep 2025322 PMAQI
9th Sep 2025303 PMAQI
9th Sep 2025374 PMAQI
9th Sep 2025365 PMAQI
9th Sep 2025346 PMAQI
9th Sep 2025397 PMAQI
9th Sep 2025408 PMAQI
9th Sep 2025389 PMAQI
9th Sep 20254210 PMAQI
9th Sep 20253911 PMAQI
10th Sep 20253712 AMAQI
10th Sep 2025411 AMAQI
10th Sep 2025422 AMAQI
10th Sep 2025413 AMAQI
10th Sep 2025374 AMAQI
10th Sep 2025375 AMAQI

28°C28/28°C

10th Sep 2025386 AMAQI
10th Sep 2025387 AMAQI
10th Sep 2025318 AMAQI
10th Sep 2025369 AMAQI
10th Sep 20253410 AMAQI
10th Sep 20253411 AMAQI
10th Sep 20253212 PMAQI
10th Sep 2025381 PMAQI
10th Sep 2025362 PMAQI
10th Sep 2025313 PMAQI
10th Sep 2025284 PMAQI
10th Sep 2025345 PMAQI
10th Sep 2025276 PMAQI
10th Sep 2025367 PMAQI
10th Sep 2025408 PMAQI
10th Sep 2025379 PMAQI
10th Sep 20253910 PMAQI
10th Sep 20253411 PMAQI
11th Sep 20254012 AMAQI
11th Sep 2025401 AMAQI
11th Sep 2025402 AMAQI
11th Sep 2025393 AMAQI
11th Sep 2025384 AMAQI
11th Sep 2025385 AMAQI

28°C28/29°C

11th Sep 2025396 AMAQI
11th Sep 2025387 AMAQI
11th Sep 2025278 AMAQI
11th Sep 2025309 AMAQI
11th Sep 20253610 AMAQI
11th Sep 20253411 AMAQI
11th Sep 20253312 PMAQI
11th Sep 2025401 PMAQI
11th Sep 2025332 PMAQI
11th Sep 2025333 PMAQI
11th Sep 2025344 PMAQI
11th Sep 2025445 PMAQI
11th Sep 2025406 PMAQI
11th Sep 2025387 PMAQI
11th Sep 2025388 PMAQI
11th Sep 2025389 PMAQI
11th Sep 20254210 PMAQI
11th Sep 20253711 PMAQI
12th Sep 20253512 AMAQI
12th Sep 2025421 AMAQI
12th Sep 2025402 AMAQI
12th Sep 2025383 AMAQI
12th Sep 2025404 AMAQI
12th Sep 2025405 AMAQI

28°C28/29°C

12th Sep 2025396 AMAQI
12th Sep 2025407 AMAQI
12th Sep 2025328 AMAQI
12th Sep 2025449 AMAQI
12th Sep 20255010 AMAQI
12th Sep 20254211 AMAQI
12th Sep 20253312 PMAQI
12th Sep 2025421 PMAQI
12th Sep 2025372 PMAQI
12th Sep 2025393 PMAQI
12th Sep 2025414 PMAQI
12th Sep 2025405 PMAQI
12th Sep 2025336 PMAQI
12th Sep 2025387 PMAQI
12th Sep 2025418 PMAQI
12th Sep 2025409 PMAQI
12th Sep 20253610 PMAQI
12th Sep 20253511 PMAQI
13th Sep 20254012 AMAQI
13th Sep 2025431 AMAQI
13th Sep 2025402 AMAQI
13th Sep 2025403 AMAQI
13th Sep 2025404 AMAQI
13th Sep 2025405 AMAQI

29°C28/30°C

13th Sep 2025406 AMAQI
13th Sep 2025417 AMAQI
13th Sep 2025278 AMAQI
13th Sep 2025339 AMAQI
13th Sep 20252810 AMAQI
13th Sep 20252911 AMAQI
13th Sep 20253312 PMAQI
13th Sep 2025321 PMAQI
13th Sep 2025362 PMAQI
13th Sep 2025353 PMAQI
13th Sep 2025294 PMAQI
13th Sep 2025285 PMAQI
13th Sep 2025346 PMAQI
13th Sep 2025427 PMAQI
13th Sep 2025408 PMAQI
13th Sep 2025419 PMAQI
13th Sep 20254010 PMAQI
13th Sep 20253811 PMAQI
14th Sep 20253612 AMAQI
14th Sep 2025391 AMAQI
14th Sep 2025422 AMAQI
14th Sep 2025393 AMAQI
14th Sep 2025384 AMAQI
14th Sep 2025385 AMAQI

29°C28/30°C

14th Sep 2025376 AMAQI
14th Sep 2025387 AMAQI
14th Sep 2025318 AMAQI
14th Sep 2025269 AMAQI
14th Sep 20252710 AMAQI
14th Sep 20252711 AMAQI
14th Sep 20252512 PMAQI
14th Sep 2025311 PMAQI
14th Sep 2025342 PMAQI
14th Sep 2025263 PMAQI
14th Sep 2025294 PMAQI
14th Sep 2025355 PMAQI
14th Sep 2025366 PMAQI
14th Sep 2025377 PMAQI
14th Sep 2025368 PMAQI
14th Sep 2025359 PMAQI
14th Sep 20253610 PMAQI
14th Sep 20253711 PMAQI
15th Sep 20253612 AMAQI
15th Sep 2025431 AMAQI
15th Sep 2025412 AMAQI
15th Sep 2025383 AMAQI
15th Sep 2025384 AMAQI
15th Sep 2025375 AMAQI

29°C28/29°C

15th Sep 2025396 AMAQI
15th Sep 2025397 AMAQI
15th Sep 2025288 AMAQI
15th Sep 2025319 AMAQI
15th Sep 20253910 AMAQI
15th Sep 20253611 AMAQI
15th Sep 20252612 PMAQI
15th Sep 2025301 PMAQI
15th Sep 2025352 PMAQI
15th Sep 2025423 PMAQI
15th Sep 2025304 PMAQI
15th Sep 2025285 PMAQI
15th Sep 2025206 PMAQI
15th Sep 2025217 PMAQI
15th Sep 2025318 PMAQI
15th Sep 2025369 PMAQI
15th Sep 20253610 PMAQI
15th Sep 20253511 PMAQI
16th Sep 20253012 AMAQI
16th Sep 2025401 AMAQI
16th Sep 2025382 AMAQI
16th Sep 2025403 AMAQI
16th Sep 2025384 AMAQI
16th Sep 2025405 AMAQI

29°C28/30°C

16th Sep 2025386 AMAQI
16th Sep 2025387 AMAQI
16th Sep 2025268 AMAQI
16th Sep 2025259 AMAQI
16th Sep 20252710 AMAQI
16th Sep 20253211 AMAQI
16th Sep 20252512 PMAQI
16th Sep 2025271 PMAQI
16th Sep 2025272 PMAQI
16th Sep 2025283 PMAQI
16th Sep 2025344 PMAQI
16th Sep 2025265 PMAQI
16th Sep 2025306 PMAQI
16th Sep 2025367 PMAQI
16th Sep 2025358 PMAQI
16th Sep 2025439 PMAQI
16th Sep 20254310 PMAQI
16th Sep 20253711 PMAQI
17th Sep 20254112 AMAQI
17th Sep 2025381 AMAQI
17th Sep 2025422 AMAQI
17th Sep 2025383 AMAQI
17th Sep 2025364 AMAQI
17th Sep 2025365 AMAQI

29°C28/30°C

17th Sep 2025376 AMAQI
6 AM
17th Sep 2025367 AMAQI
17th Sep 2025368 AMAQI
17th Sep 2025309 AMAQI
17th Sep 20254210 AMAQI
17th Sep 20254411 AMAQI
17th Sep 20254612 PMAQI
12 PM
17th Sep 2025521 PMAQI
17th Sep 2025542 PMAQI
17th Sep 2025563 PMAQI
17th Sep 2025544 PMAQI
17th Sep 2025405 PMAQI
17th Sep 2025426 PMAQI
6 PM
17th Sep 2025417 PMAQI
17th Sep 2025438 PMAQI
17th Sep 2025409 PMAQI
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 7 AM

42AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
8 AM

33AQI

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. 42), while the lowest AQI was between 8 AM to 8 AM (Avg. 33).
Night time
Avg. Highest Time
1 AM - 5 AM

42AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM

39AQI

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. 42), while the lowest AQI was between 12 AM to 12 AM (Avg. 39).

2025 Days Vs Air Quality

Kwai Tsing District, Hong Kong, China

2025

41%

106

55%

142

4%

11

Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)

Good
106 Days
Moderate
142 Days
Poor
11 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 41%

Health Risk Level:

Significant

In 2025, 41% of 260 days were within WHO’s safe air quality limits, and 59% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights

Kwai Tsing District, Hong Kong, 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
107AQI
2nd January 2025
128AQI
3rd January 2025
98AQI
4th January 2025
101AQI
5th January 2025
95AQI
6th January 2025
99AQI
7th January 2025
87AQI
8th January 2025
104AQI
9th January 2025
106AQI
10th January 2025
82AQI
11th January 2025
91AQI
12th January 2025
67AQI
13th January 2025
72AQI
14th January 2025
64AQI
15th January 2025
75AQI
16th January 2025
105AQI
17th January 2025
82AQI
18th January 2025
98AQI
19th January 2025
91AQI
20th January 2025
92AQI
21st January 2025
79AQI
22nd January 2025
81AQI
23rd January 2025
81AQI
24th January 2025
65AQI
25th January 2025
60AQI
26th January 2025
54AQI
27th January 2025
55AQI
28th January 2025
56AQI
29th January 2025
78AQI
30th January 2025
61AQI
31st January 2025
61AQI
1st February 2025
47AQI
2nd February 2025
52AQI
3rd February 2025
36AQI
4th February 2025
44AQI
5th February 2025
67AQI
6th February 2025
59AQI
7th February 2025
54AQI
8th February 2025
63AQI
9th February 2025
54AQI
10th February 2025
59AQI
11th February 2025
55AQI
12th February 2025
60AQI
13th February 2025
80AQI
14th February 2025
72AQI
15th February 2025
78AQI
16th February 2025
110AQI
17th February 2025
85AQI
18th February 2025
113AQI
19th February 2025
70AQI
20th February 2025
78AQI
21st February 2025
76AQI
22nd February 2025
67AQI
23rd February 2025
49AQI
24th February 2025
57AQI
25th February 2025
77AQI
26th February 2025
82AQI
27th February 2025
75AQI
28th February 2025
69AQI
1st March 2025
64AQI
2nd March 2025
56AQI
3rd March 2025
56AQI
4th March 2025
52AQI
5th March 2025
43AQI
6th March 2025
38AQI
7th March 2025
48AQI
8th March 2025
62AQI
9th March 2025
60AQI
10th March 2025
64AQI
11th March 2025
61AQI
12th March 2025
59AQI
13th March 2025
60AQI
14th March 2025
57AQI
15th March 2025
54AQI
16th March 2025
43AQI
17th March 2025
69AQI
18th March 2025
63AQI
19th March 2025
71AQI
20th March 2025
72AQI
21st March 2025
76AQI
22nd March 2025
72AQI
23rd March 2025
73AQI
24th March 2025
73AQI
25th March 2025
71AQI
26th March 2025
60AQI
27th March 2025
61AQI
28th March 2025
63AQI
29th March 2025
43AQI
30th March 2025
38AQI
31st March 2025
41AQI
1st April 2025
50AQI
2nd April 2025
52AQI
3rd April 2025
59AQI
4th April 2025
60AQI
5th April 2025
55AQI
6th April 2025
71AQI
7th April 2025
69AQI
8th April 2025
76AQI
9th April 2025
64AQI
10th April 2025
65AQI
11th April 2025
62AQI
12th April 2025
59AQI
13th April 2025
122AQI
14th April 2025
128AQI
15th April 2025
125AQI
16th April 2025
96AQI
17th April 2025
84AQI
18th April 2025
72AQI
19th April 2025
64AQI
20th April 2025
61AQI
21st April 2025
58AQI
22nd April 2025
59AQI
23rd April 2025
55AQI
24th April 2025
52AQI
25th April 2025
54AQI
26th April 2025
50AQI
27th April 2025
54AQI
28th April 2025
66AQI
29th April 2025
61AQI
30th April 2025
69AQI
1st May 2025
64AQI
2nd May 2025
74AQI
3rd May 2025
73AQI
4th May 2025
63AQI
5th May 2025
59AQI
6th May 2025
56AQI
7th May 2025
55AQI
8th May 2025
61AQI
9th May 2025
47AQI
10th May 2025
59AQI
11th May 2025
56AQI
12th May 2025
59AQI
13th May 2025
62AQI
14th May 2025
55AQI
15th May 2025
48AQI
16th May 2025
40AQI
17th May 2025
40AQI
18th May 2025
41AQI
19th May 2025
45AQI
20th May 2025
39AQI
21st May 2025
48AQI
22nd May 2025
42AQI
23rd May 2025
44AQI
24th May 2025
48AQI
25th May 2025
66AQI
26th May 2025
62AQI
27th May 2025
67AQI
28th May 2025
56AQI
29th May 2025
56AQI
30th May 2025
44AQI
31st May 2025
59AQI
1st June 2025
58AQI
2nd June 2025
55AQI
3rd June 2025
57AQI
4th June 2025
41AQI
5th June 2025
54AQI
6th June 2025
53AQI
7th June 2025
46AQI
8th June 2025
36AQI
9th June 2025
41AQI
10th June 2025
36AQI
11th June 2025
34AQI
12th June 2025
34AQI
13th June 2025
35AQI
14th June 2025
46AQI
15th June 2025
44AQI
16th June 2025
45AQI
17th June 2025
43AQI
18th June 2025
37AQI
19th June 2025
34AQI
20th June 2025
34AQI
21st June 2025
30AQI
22nd June 2025
23AQI
23rd June 2025
25AQI
24th June 2025
29AQI
25th June 2025
28AQI
26th June 2025
26AQI
27th June 2025
28AQI
28th June 2025
28AQI
29th June 2025
28AQI
30th June 2025
26AQI
1st July 2025
25AQI
2nd July 2025
27AQI
3rd July 2025
34AQI
4th July 2025
40AQI
5th July 2025
45AQI
6th July 2025
45AQI
7th July 2025
52AQI
8th July 2025
43AQI
9th July 2025
47AQI
10th July 2025
48AQI
11th July 2025
47AQI
12th July 2025
46AQI
13th July 2025
52AQI
14th July 2025
49AQI
15th July 2025
51AQI
16th July 2025
50AQI
17th July 2025
55AQI
18th July 2025
55AQI
19th July 2025
60AQI
20th July 2025
38AQI
21st July 2025
43AQI
22nd July 2025
41AQI
23rd July 2025
36AQI
24th July 2025
55AQI
25th July 2025
62AQI
26th July 2025
62AQI
27th July 2025
55AQI
28th July 2025
59AQI
29th July 2025
54AQI
30th July 2025
59AQI
31st July 2025
53AQI
1st August 2025
53AQI
2nd August 2025
52AQI
3rd August 2025
53AQI
4th August 2025
54AQI
5th August 2025
49AQI
6th August 2025
45AQI
7th August 2025
51AQI
8th August 2025
55AQI
9th August 2025
53AQI
10th August 2025
41AQI
11th August 2025
41AQI
12th August 2025
45AQI
13th August 2025
51AQI
14th August 2025
42AQI
15th August 2025
36AQI
16th August 2025
40AQI
17th August 2025
36AQI
18th August 2025
34AQI
19th August 2025
41AQI
20th August 2025
38AQI
21st August 2025
39AQI
22nd August 2025
40AQI
23rd August 2025
44AQI
24th August 2025
41AQI
25th August 2025
38AQI
26th August 2025
42AQI
27th August 2025
44AQI
28th August 2025
49AQI
29th August 2025
46AQI
30th August 2025
44AQI
31st August 2025
43AQI
1st September 2025
42AQI
2nd September 2025
39AQI
3rd September 2025
39AQI
4th September 2025
36AQI
5th September 2025
34AQI
6th September 2025
43AQI
7th September 2025
37AQI
8th September 2025
33AQI
9th September 2025
36AQI
10th September 2025
36AQI
11th September 2025
38AQI
12th September 2025
39AQI
13th September 2025
37AQI
14th September 2025
35AQI
15th September 2025
34AQI
16th September 2025
34AQI
17th September 2025
18th September 2025
19th September 2025
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

83AQI

67AQI

59AQI

69AQI

54AQI

38AQI

48AQI

45AQI

37AQI

No. of days

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

202557AQI

25
6
4
22
2
7
24
2
25
3
12
19
25
5
17
14
23
8
16
106
142
11

Highest AQI recorded in

January

83AQI

Lowest AQI recorded in

September

37AQI

202454AQI

7
22
2
12
17
6
25
15
15
16
15
28
1
29
2
23
8
19
11
5
26
9
21
24
7
169
187
9

Highest AQI recorded in

December

89AQI

Lowest AQI recorded in

July

30AQI

202355AQI

5
26
7
19
2
6
23
2
3
27
14
16
1
27
3
26
5
28
3
24
6
9
22
6
23
5
23
3
160
196
8

Highest AQI recorded in

December

70AQI

Lowest AQI recorded in

July

35AQI

202255AQI

6
20
5
9
11
1
13
16
2
10
19
19
12
30
19
2
1
4
20
4
10
21
17
13
12
17
2
149
152
14

Highest AQI recorded in

August

98AQI

Lowest AQI recorded in

July

34AQI

202155AQI

3
25
3
4
24
2
27
2
7
23
26
5
20
9
1
23
8
26
5
18
12
13
18
7
23
3
22
6
152
201
12

Highest AQI recorded in

December

75AQI

Lowest AQI recorded in

July

40AQI

202047AQI

4
9
8
13
14
4
30
31
24
7
20
9
1
4
27
7
23
1
30
143
122
1

Highest AQI recorded in

December

69AQI

Lowest AQI recorded in

July

27AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
57AQI
Least Polluted Year Recorded
2020(Avg.)
47AQI

Kwai Tsing District's annual 2025 AQI (57) shows an average percentage change of 6.2% (worsened AQI) compared to previous years: 2020 (47), 2021 (55), 2022 (55), 2023 (55), 2024 (54).