Mong Kok, Kowloon, 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
Mong Kok, Kowloon, Hong Kong, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
16th Sep 2022
129AQILowest AQI recorded on
8th Sep 2023
24AQISame Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 36 of Good air quality, showing improvement over 2024, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Mong Kok, Kowloon, Hong Kong, China
AQI
Day
Night
.
6 AM17th Sep 2025
6 PM
5 AM18th Sep 2025
Day time
Avg. Highest Time
4PM17th Sep
53AQI
Avg. Lowest Time
9AM17th Sep
32AQI
Night time
Avg. Highest Time
9PM17th Sep
50AQI
Avg. Lowest Time
12AM18th Sep
34AQI
In the last 24 hours,
Mong Kok's AQI reached its highest point of 53 at 4 PM during the Day, while the lowest point, 32, was recorded at 9 AM during the Day between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Mong Kok, Kowloon, Hong Kong, China
AugSep
19th - 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 - 18th18th
Day
Night
19th Aug 2025386 AMAQI
19th Aug 2025387 AMAQI
19th Aug 2025278 AMAQI
19th Aug 2025219 AMAQI
19th Aug 20254010 AMAQI
19th Aug 20254011 AMAQI
19th Aug 20253412 PMAQI
19th Aug 2025371 PMAQI
19th Aug 2025442 PMAQI
19th Aug 2025423 PMAQI
19th Aug 2025534 PMAQI
19th Aug 2025485 PMAQI
19th Aug 2025446 PMAQI
19th Aug 2025407 PMAQI
19th Aug 2025418 PMAQI
19th Aug 2025439 PMAQI
19th Aug 20254710 PMAQI
19th Aug 20254611 PMAQI
20th Aug 20254412 AMAQI
20th Aug 2025421 AMAQI
20th Aug 2025402 AMAQI
20th Aug 2025413 AMAQI
20th Aug 2025404 AMAQI
20th Aug 2025385 AMAQI
28°C27/29°C
20th Aug 2025396 AMAQI
20th Aug 2025417 AMAQI
20th Aug 2025398 AMAQI
20th Aug 2025369 AMAQI
20th Aug 20254710 AMAQI
20th Aug 20253911 AMAQI
20th Aug 20253712 PMAQI
20th Aug 2025341 PMAQI
20th Aug 2025312 PMAQI
20th Aug 2025353 PMAQI
20th Aug 2025304 PMAQI
20th Aug 2025345 PMAQI
20th Aug 2025366 PMAQI
20th Aug 2025387 PMAQI
20th Aug 2025408 PMAQI
20th Aug 2025429 PMAQI
20th Aug 20254010 PMAQI
20th Aug 20253911 PMAQI
21st Aug 20254312 AMAQI
21st Aug 2025421 AMAQI
21st Aug 2025432 AMAQI
21st Aug 2025413 AMAQI
21st Aug 2025384 AMAQI
21st Aug 2025385 AMAQI
28°C27/29°C
21st Aug 2025396 AMAQI
21st Aug 2025407 AMAQI
21st Aug 2025288 AMAQI
21st Aug 2025329 AMAQI
21st Aug 20253810 AMAQI
21st Aug 20253811 AMAQI
21st Aug 20253612 PMAQI
21st Aug 2025361 PMAQI
21st Aug 2025342 PMAQI
21st Aug 2025383 PMAQI
21st Aug 2025344 PMAQI
21st Aug 2025395 PMAQI
21st Aug 2025326 PMAQI
21st Aug 2025397 PMAQI
21st Aug 2025408 PMAQI
21st Aug 2025449 PMAQI
21st Aug 20253910 PMAQI
21st Aug 20253911 PMAQI
22nd Aug 20254312 AMAQI
22nd Aug 2025411 AMAQI
22nd Aug 2025422 AMAQI
22nd Aug 2025413 AMAQI
22nd Aug 2025404 AMAQI
22nd Aug 2025425 AMAQI
28°C27/30°C
22nd Aug 2025396 AMAQI
22nd Aug 2025407 AMAQI
22nd Aug 2025348 AMAQI
22nd Aug 2025349 AMAQI
22nd Aug 20253510 AMAQI
22nd Aug 20253611 AMAQI
22nd Aug 20253712 PMAQI
22nd Aug 2025341 PMAQI
22nd Aug 2025332 PMAQI
22nd Aug 2025333 PMAQI
22nd Aug 2025344 PMAQI
22nd Aug 2025425 PMAQI
22nd Aug 2025396 PMAQI
22nd Aug 2025427 PMAQI
22nd Aug 2025478 PMAQI
22nd Aug 2025459 PMAQI
22nd Aug 20254410 PMAQI
22nd Aug 20254611 PMAQI
23rd Aug 20254312 AMAQI
23rd Aug 2025421 AMAQI
23rd Aug 2025422 AMAQI
23rd Aug 2025433 AMAQI
23rd Aug 2025424 AMAQI
23rd Aug 2025425 AMAQI
29°C28/30°C
23rd Aug 2025416 AMAQI
23rd Aug 2025427 AMAQI
23rd Aug 2025498 AMAQI
23rd Aug 2025499 AMAQI
23rd Aug 20255810 AMAQI
23rd Aug 20256011 AMAQI
23rd Aug 20256012 PMAQI
23rd Aug 2025611 PMAQI
23rd Aug 2025562 PMAQI
23rd Aug 2025463 PMAQI
23rd Aug 2025404 PMAQI
23rd Aug 2025375 PMAQI
23rd Aug 2025366 PMAQI
23rd Aug 2025427 PMAQI
23rd Aug 2025438 PMAQI
23rd Aug 2025469 PMAQI
23rd Aug 20254710 PMAQI
23rd Aug 20254111 PMAQI
24th Aug 20254312 AMAQI
24th Aug 2025421 AMAQI
24th Aug 2025432 AMAQI
24th Aug 2025463 AMAQI
24th Aug 2025474 AMAQI
24th Aug 2025485 AMAQI
29°C28/31°C
24th Aug 2025486 AMAQI
24th Aug 2025487 AMAQI
24th Aug 2025358 AMAQI
24th Aug 2025369 AMAQI
24th Aug 20253410 AMAQI
24th Aug 20253811 AMAQI
24th Aug 20253912 PMAQI
24th Aug 2025401 PMAQI
24th Aug 2025272 PMAQI
24th Aug 2025383 PMAQI
24th Aug 2025394 PMAQI
24th Aug 2025365 PMAQI
24th Aug 2025306 PMAQI
24th Aug 2025427 PMAQI
24th Aug 2025488 PMAQI
24th Aug 2025429 PMAQI
24th Aug 20254510 PMAQI
24th Aug 20254311 PMAQI
25th Aug 20254312 AMAQI
25th Aug 2025451 AMAQI
25th Aug 2025442 AMAQI
25th Aug 2025453 AMAQI
25th Aug 2025434 AMAQI
25th Aug 2025435 AMAQI
28°C27/29°C
25th Aug 2025446 AMAQI
25th Aug 2025447 AMAQI
25th Aug 2025348 AMAQI
25th Aug 2025289 AMAQI
25th Aug 20252910 AMAQI
25th Aug 20253411 AMAQI
25th Aug 20252412 PMAQI
25th Aug 2025361 PMAQI
25th Aug 2025362 PMAQI
25th Aug 2025343 PMAQI
25th Aug 2025374 PMAQI
25th Aug 2025315 PMAQI
25th Aug 2025416 PMAQI
25th Aug 2025407 PMAQI
25th Aug 2025418 PMAQI
25th Aug 2025399 PMAQI
25th Aug 20253610 PMAQI
25th Aug 20253811 PMAQI
26th Aug 20253812 AMAQI
26th Aug 2025461 AMAQI
26th Aug 2025442 AMAQI
26th Aug 2025443 AMAQI
26th Aug 2025424 AMAQI
26th Aug 2025435 AMAQI
28°C28/29°C
26th Aug 2025436 AMAQI
26th Aug 2025457 AMAQI
26th Aug 2025288 AMAQI
26th Aug 2025379 AMAQI
26th Aug 20253410 AMAQI
26th Aug 20253711 AMAQI
26th Aug 20253712 PMAQI
26th Aug 2025391 PMAQI
26th Aug 2025392 PMAQI
26th Aug 2025403 PMAQI
26th Aug 2025444 PMAQI
26th Aug 2025395 PMAQI
26th Aug 2025366 PMAQI
26th Aug 2025487 PMAQI
26th Aug 2025488 PMAQI
26th Aug 2025519 PMAQI
26th Aug 20254910 PMAQI
26th Aug 20254811 PMAQI
27th Aug 20255012 AMAQI
27th Aug 2025441 AMAQI
27th Aug 2025442 AMAQI
27th Aug 2025433 AMAQI
27th Aug 2025444 AMAQI
27th Aug 2025435 AMAQI
28°C27/30°C
27th Aug 2025426 AMAQI
27th Aug 2025427 AMAQI
27th Aug 2025428 AMAQI
27th Aug 2025379 AMAQI
27th Aug 20254410 AMAQI
27th Aug 20254011 AMAQI
27th Aug 20254412 PMAQI
27th Aug 2025281 PMAQI
27th Aug 2025502 PMAQI
27th Aug 2025513 PMAQI
27th Aug 2025514 PMAQI
27th Aug 2025465 PMAQI
27th Aug 2025466 PMAQI
27th Aug 2025397 PMAQI
27th Aug 2025438 PMAQI
27th Aug 2025509 PMAQI
27th Aug 20254510 PMAQI
27th Aug 20254611 PMAQI
28th Aug 20254512 AMAQI
28th Aug 2025451 AMAQI
28th Aug 2025452 AMAQI
28th Aug 2025453 AMAQI
28th Aug 2025444 AMAQI
28th Aug 2025465 AMAQI
28°C27/29°C
28th Aug 2025466 AMAQI
28th Aug 2025457 AMAQI
28th Aug 2025508 AMAQI
28th Aug 2025529 AMAQI
28th Aug 20255410 AMAQI
28th Aug 20255011 AMAQI
28th Aug 20254912 PMAQI
28th Aug 2025491 PMAQI
28th Aug 2025532 PMAQI
28th Aug 2025553 PMAQI
28th Aug 2025544 PMAQI
28th Aug 2025545 PMAQI
28th Aug 2025566 PMAQI
28th Aug 2025527 PMAQI
28th Aug 2025508 PMAQI
28th Aug 2025509 PMAQI
28th Aug 20254910 PMAQI
28th Aug 20254911 PMAQI
29th Aug 20254312 AMAQI
29th Aug 2025471 AMAQI
29th Aug 2025482 AMAQI
29th Aug 2025503 AMAQI
29th Aug 2025504 AMAQI
29th Aug 2025505 AMAQI
28°C27/29°C
29th Aug 2025516 AMAQI
29th Aug 2025507 AMAQI
29th Aug 2025328 AMAQI
29th Aug 2025329 AMAQI
29th Aug 20254210 AMAQI
29th Aug 20254811 AMAQI
29th Aug 20254412 PMAQI
29th Aug 2025441 PMAQI
29th Aug 2025542 PMAQI
29th Aug 2025423 PMAQI
29th Aug 2025404 PMAQI
29th Aug 2025405 PMAQI
29th Aug 2025436 PMAQI
29th Aug 2025497 PMAQI
29th Aug 2025488 PMAQI
29th Aug 2025529 PMAQI
29th Aug 20255010 PMAQI
29th Aug 20255211 PMAQI
30th Aug 20254612 AMAQI
30th Aug 2025481 AMAQI
30th Aug 2025502 AMAQI
30th Aug 2025503 AMAQI
30th Aug 2025494 AMAQI
30th Aug 2025485 AMAQI
28°C28/30°C
30th Aug 2025476 AMAQI
30th Aug 2025487 AMAQI
30th Aug 2025468 AMAQI
30th Aug 2025419 AMAQI
30th Aug 20254810 AMAQI
30th Aug 20254411 AMAQI
30th Aug 20254512 PMAQI
30th Aug 2025401 PMAQI
30th Aug 2025382 PMAQI
30th Aug 2025393 PMAQI
30th Aug 2025384 PMAQI
30th Aug 2025405 PMAQI
30th Aug 2025416 PMAQI
30th Aug 2025497 PMAQI
30th Aug 2025468 PMAQI
30th Aug 2025479 PMAQI
30th Aug 20254410 PMAQI
30th Aug 20254011 PMAQI
31st Aug 20254112 AMAQI
31st Aug 2025501 AMAQI
31st Aug 2025522 AMAQI
31st Aug 2025483 AMAQI
31st Aug 2025464 AMAQI
31st Aug 2025495 AMAQI
28°C27/29°C
31st Aug 2025476 AMAQI
31st Aug 2025487 AMAQI
31st Aug 2025298 AMAQI
31st Aug 2025329 AMAQI
31st Aug 20253010 AMAQI
31st Aug 20253011 AMAQI
31st Aug 20253612 PMAQI
31st Aug 2025291 PMAQI
31st Aug 2025352 PMAQI
31st Aug 2025343 PMAQI
31st Aug 2025424 PMAQI
31st Aug 2025365 PMAQI
31st Aug 2025506 PMAQI
31st Aug 2025487 PMAQI
31st Aug 2025428 PMAQI
31st Aug 2025449 PMAQI
31st Aug 20254310 PMAQI
31st Aug 20254711 PMAQI
1st Sep 20253912 AMAQI
1st Sep 2025461 AMAQI
1st Sep 2025482 AMAQI
1st Sep 2025483 AMAQI
1st Sep 2025484 AMAQI
1st Sep 2025485 AMAQI
28°C28/29°C
1st Sep 2025486 AMAQI
1st Sep 2025497 AMAQI
1st Sep 2025408 AMAQI
1st Sep 2025329 AMAQI
1st Sep 20253810 AMAQI
1st Sep 20253911 AMAQI
1st Sep 20253012 PMAQI
1st Sep 2025381 PMAQI
1st Sep 2025302 PMAQI
1st Sep 2025393 PMAQI
1st Sep 2025374 PMAQI
1st Sep 2025425 PMAQI
1st Sep 2025396 PMAQI
1st Sep 2025427 PMAQI
1st Sep 2025438 PMAQI
1st Sep 2025429 PMAQI
1st Sep 20254410 PMAQI
1st Sep 20254411 PMAQI
2nd Sep 20254612 AMAQI
2nd Sep 2025481 AMAQI
2nd Sep 2025452 AMAQI
2nd Sep 2025463 AMAQI
2nd Sep 2025444 AMAQI
2nd Sep 2025445 AMAQI
28°C27/30°C
2nd Sep 2025456 AMAQI
2nd Sep 2025457 AMAQI
2nd Sep 2025328 AMAQI
2nd Sep 2025299 AMAQI
2nd Sep 20252810 AMAQI
2nd Sep 20252411 AMAQI
2nd Sep 20252212 PMAQI
2nd Sep 2025351 PMAQI
2nd Sep 2025352 PMAQI
2nd Sep 2025263 PMAQI
2nd Sep 2025384 PMAQI
2nd Sep 2025285 PMAQI
2nd Sep 2025286 PMAQI
2nd Sep 2025397 PMAQI
2nd Sep 2025448 PMAQI
2nd Sep 2025479 PMAQI
2nd Sep 20254210 PMAQI
2nd Sep 20255011 PMAQI
3rd Sep 20254412 AMAQI
3rd Sep 2025471 AMAQI
3rd Sep 2025502 AMAQI
3rd Sep 2025463 AMAQI
3rd Sep 2025444 AMAQI
3rd Sep 2025435 AMAQI
28°C27/30°C
3rd Sep 2025436 AMAQI
3rd Sep 2025437 AMAQI
3rd Sep 2025318 AMAQI
3rd Sep 2025409 AMAQI
3rd Sep 20253810 AMAQI
3rd Sep 20254411 AMAQI
3rd Sep 20253712 PMAQI
3rd Sep 2025381 PMAQI
3rd Sep 2025412 PMAQI
3rd Sep 2025363 PMAQI
3rd Sep 2025354 PMAQI
3rd Sep 2025325 PMAQI
3rd Sep 2025406 PMAQI
3rd Sep 2025397 PMAQI
3rd Sep 2025428 PMAQI
3rd Sep 2025429 PMAQI
3rd Sep 20254810 PMAQI
3rd Sep 20253911 PMAQI
4th Sep 20254312 AMAQI
4th Sep 2025481 AMAQI
4th Sep 2025482 AMAQI
4th Sep 2025473 AMAQI
4th Sep 2025444 AMAQI
4th Sep 2025445 AMAQI
29°C27/30°C
4th Sep 2025466 AMAQI
4th Sep 2025447 AMAQI
4th Sep 2025488 AMAQI
4th Sep 2025479 AMAQI
4th Sep 20254410 AMAQI
4th Sep 20254011 AMAQI
4th Sep 20253612 PMAQI
4th Sep 2025381 PMAQI
4th Sep 2025322 PMAQI
4th Sep 2025343 PMAQI
4th Sep 2025424 PMAQI
4th Sep 2025335 PMAQI
4th Sep 2025336 PMAQI
4th Sep 2025347 PMAQI
4th Sep 2025398 PMAQI
4th Sep 2025409 PMAQI
4th Sep 20254810 PMAQI
4th Sep 20253211 PMAQI
5th Sep 20253112 AMAQI
5th Sep 2025471 AMAQI
5th Sep 2025472 AMAQI
5th Sep 2025443 AMAQI
5th Sep 2025444 AMAQI
5th Sep 2025455 AMAQI
29°C28/30°C
5th Sep 2025446 AMAQI
5th Sep 2025447 AMAQI
5th Sep 2025338 AMAQI
5th Sep 2025329 AMAQI
5th Sep 20252810 AMAQI
5th Sep 20253511 AMAQI
5th Sep 20252812 PMAQI
5th Sep 2025371 PMAQI
5th Sep 2025382 PMAQI
5th Sep 2025313 PMAQI
5th Sep 2025304 PMAQI
5th Sep 2025345 PMAQI
5th Sep 2025326 PMAQI
5th Sep 2025517 PMAQI
5th Sep 2025428 PMAQI
5th Sep 2025469 PMAQI
5th Sep 20254810 PMAQI
5th Sep 20254011 PMAQI
6th Sep 20253412 AMAQI
6th Sep 2025371 AMAQI
6th Sep 2025422 AMAQI
6th Sep 2025423 AMAQI
6th Sep 2025404 AMAQI
6th Sep 2025405 AMAQI
29°C28/30°C
6th Sep 2025376 AMAQI
6th Sep 2025387 AMAQI
6th Sep 2025308 AMAQI
6th Sep 2025449 AMAQI
6th Sep 20253410 AMAQI
6th Sep 20254511 AMAQI
6th Sep 20254812 PMAQI
6th Sep 2025431 PMAQI
6th Sep 2025372 PMAQI
6th Sep 2025433 PMAQI
6th Sep 2025504 PMAQI
6th Sep 2025555 PMAQI
6th Sep 2025556 PMAQI
6th Sep 2025567 PMAQI
6th Sep 2025538 PMAQI
6th Sep 2025559 PMAQI
6th Sep 20255110 PMAQI
6th Sep 20254711 PMAQI
7th Sep 20254912 AMAQI
7th Sep 2025381 AMAQI
7th Sep 2025392 AMAQI
7th Sep 2025423 AMAQI
7th Sep 2025384 AMAQI
7th Sep 2025405 AMAQI
29°C28/31°C
7th Sep 2025406 AMAQI
7th Sep 2025387 AMAQI
7th Sep 2025438 AMAQI
7th Sep 2025549 AMAQI
7th Sep 20253910 AMAQI
7th Sep 20253811 AMAQI
7th Sep 20254012 PMAQI
7th Sep 2025401 PMAQI
7th Sep 2025422 PMAQI
7th Sep 2025483 PMAQI
7th Sep 2025374 PMAQI
7th Sep 2025395 PMAQI
7th Sep 2025496 PMAQI
7th Sep 2025457 PMAQI
7th Sep 2025478 PMAQI
7th Sep 2025379 PMAQI
7th Sep 20254210 PMAQI
7th Sep 20253611 PMAQI
8th Sep 20253712 AMAQI
8th Sep 2025421 AMAQI
8th Sep 2025402 AMAQI
8th Sep 2025393 AMAQI
8th Sep 2025404 AMAQI
8th Sep 2025405 AMAQI
28°C26/29°C
8th Sep 2025426 AMAQI
8th Sep 2025397 AMAQI
8th Sep 2025238 AMAQI
8th Sep 2025239 AMAQI
8th Sep 20252310 AMAQI
8th Sep 20252311 AMAQI
8th Sep 20252212 PMAQI
8th Sep 2025221 PMAQI
8th Sep 2025232 PMAQI
8th Sep 2025243 PMAQI
8th Sep 2025244 PMAQI
8th Sep 2025255 PMAQI
8th Sep 2025236 PMAQI
8th Sep 2025347 PMAQI
8th Sep 2025418 PMAQI
8th Sep 2025429 PMAQI
8th Sep 20254910 PMAQI
8th Sep 20254111 PMAQI
9th Sep 20253712 AMAQI
9th Sep 2025431 AMAQI
9th Sep 2025422 AMAQI
9th Sep 2025413 AMAQI
9th Sep 2025414 AMAQI
9th Sep 2025365 AMAQI
28°C27/28°C
9th Sep 2025366 AMAQI
9th Sep 2025397 AMAQI
9th Sep 2025348 AMAQI
9th Sep 2025309 AMAQI
9th Sep 20253610 AMAQI
9th Sep 20253611 AMAQI
9th Sep 20253612 PMAQI
9th Sep 2025341 PMAQI
9th Sep 2025342 PMAQI
9th Sep 2025283 PMAQI
9th Sep 2025384 PMAQI
9th Sep 2025405 PMAQI
9th Sep 2025386 PMAQI
9th Sep 2025407 PMAQI
9th Sep 2025428 PMAQI
9th Sep 2025379 PMAQI
9th Sep 20254010 PMAQI
9th Sep 20253811 PMAQI
10th Sep 20253612 AMAQI
10th Sep 2025401 AMAQI
10th Sep 2025402 AMAQI
10th Sep 2025403 AMAQI
10th Sep 2025384 AMAQI
10th Sep 2025385 AMAQI
28°C28/28°C
10th Sep 2025386 AMAQI
10th Sep 2025387 AMAQI
10th Sep 2025328 AMAQI
10th Sep 2025319 AMAQI
10th Sep 20253210 AMAQI
10th Sep 20253711 AMAQI
10th Sep 20253412 PMAQI
10th Sep 2025361 PMAQI
10th Sep 2025342 PMAQI
10th Sep 2025303 PMAQI
10th Sep 2025284 PMAQI
10th Sep 2025335 PMAQI
10th Sep 2025266 PMAQI
10th Sep 2025357 PMAQI
10th Sep 2025418 PMAQI
10th Sep 2025419 PMAQI
10th Sep 20254110 PMAQI
10th Sep 20253511 PMAQI
11th Sep 20254012 AMAQI
11th Sep 2025401 AMAQI
11th Sep 2025422 AMAQI
11th Sep 2025403 AMAQI
11th Sep 2025384 AMAQI
11th Sep 2025375 AMAQI
28°C28/29°C
11th Sep 2025396 AMAQI
11th Sep 2025387 AMAQI
11th Sep 2025348 AMAQI
11th Sep 2025339 AMAQI
11th Sep 20253610 AMAQI
11th Sep 20253711 AMAQI
11th Sep 20253512 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025342 PMAQI
11th Sep 2025333 PMAQI
11th Sep 2025344 PMAQI
11th Sep 2025405 PMAQI
11th Sep 2025426 PMAQI
11th Sep 2025377 PMAQI
11th Sep 2025398 PMAQI
11th Sep 2025389 PMAQI
11th Sep 20253910 PMAQI
11th Sep 20253711 PMAQI
12th Sep 20253812 AMAQI
12th Sep 2025411 AMAQI
12th Sep 2025402 AMAQI
12th Sep 2025393 AMAQI
12th Sep 2025404 AMAQI
12th Sep 2025405 AMAQI
29°C27/30°C
12th Sep 2025396 AMAQI
12th Sep 2025387 AMAQI
12th Sep 2025328 AMAQI
12th Sep 2025409 AMAQI
12th Sep 20254210 AMAQI
12th Sep 20254611 AMAQI
12th Sep 20254212 PMAQI
12th Sep 2025411 PMAQI
12th Sep 2025382 PMAQI
12th Sep 2025373 PMAQI
12th Sep 2025424 PMAQI
12th Sep 2025395 PMAQI
12th Sep 2025426 PMAQI
12th Sep 2025377 PMAQI
12th Sep 2025438 PMAQI
12th Sep 2025419 PMAQI
12th Sep 20253510 PMAQI
12th Sep 20253611 PMAQI
13th Sep 20254012 AMAQI
13th Sep 2025441 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 2025407 AMAQI
13th Sep 2025318 AMAQI
13th Sep 2025299 AMAQI
13th Sep 20253110 AMAQI
13th Sep 20253211 AMAQI
13th Sep 20253812 PMAQI
13th Sep 2025391 PMAQI
13th Sep 2025382 PMAQI
13th Sep 2025363 PMAQI
13th Sep 2025294 PMAQI
13th Sep 2025305 PMAQI
13th Sep 2025376 PMAQI
13th Sep 2025437 PMAQI
13th Sep 2025428 PMAQI
13th Sep 2025429 PMAQI
13th Sep 20254310 PMAQI
13th Sep 20253811 PMAQI
14th Sep 20253812 AMAQI
14th Sep 2025401 AMAQI
14th Sep 2025412 AMAQI
14th Sep 2025383 AMAQI
14th Sep 2025394 AMAQI
14th Sep 2025375 AMAQI
29°C28/30°C
14th Sep 2025366 AMAQI
14th Sep 2025387 AMAQI
14th Sep 2025288 AMAQI
14th Sep 2025259 AMAQI
14th Sep 20253310 AMAQI
14th Sep 20253611 AMAQI
14th Sep 20252812 PMAQI
14th Sep 2025341 PMAQI
14th Sep 2025322 PMAQI
14th Sep 2025273 PMAQI
14th Sep 2025314 PMAQI
14th Sep 2025345 PMAQI
14th Sep 2025326 PMAQI
14th Sep 2025347 PMAQI
14th Sep 2025378 PMAQI
14th Sep 2025419 PMAQI
14th Sep 20253610 PMAQI
14th Sep 20253811 PMAQI
15th Sep 20253512 AMAQI
15th Sep 2025401 AMAQI
15th Sep 2025412 AMAQI
15th Sep 2025383 AMAQI
15th Sep 2025384 AMAQI
15th Sep 2025375 AMAQI
29°C28/30°C
15th Sep 2025396 AMAQI
15th Sep 2025397 AMAQI
15th Sep 2025298 AMAQI
15th Sep 2025339 AMAQI
15th Sep 20254210 AMAQI
15th Sep 20253811 AMAQI
15th Sep 20253012 PMAQI
15th Sep 2025281 PMAQI
15th Sep 2025302 PMAQI
15th Sep 2025323 PMAQI
15th Sep 2025344 PMAQI
15th Sep 2025295 PMAQI
15th Sep 2025226 PMAQI
15th Sep 2025287 PMAQI
15th Sep 2025338 PMAQI
15th Sep 2025379 PMAQI
15th Sep 20253610 PMAQI
15th Sep 20253411 PMAQI
16th Sep 20253212 AMAQI
16th Sep 2025401 AMAQI
16th Sep 2025382 AMAQI
16th Sep 2025393 AMAQI
16th Sep 2025374 AMAQI
16th Sep 2025385 AMAQI
29°C28/30°C
16th Sep 2025386 AMAQI
16th Sep 2025387 AMAQI
16th Sep 2025258 AMAQI
16th Sep 2025329 AMAQI
16th Sep 20252810 AMAQI
16th Sep 20253211 AMAQI
16th Sep 20253212 PMAQI
16th Sep 2025281 PMAQI
16th Sep 2025322 PMAQI
16th Sep 2025343 PMAQI
16th Sep 2025374 PMAQI
16th Sep 2025325 PMAQI
16th Sep 2025386 PMAQI
16th Sep 2025397 PMAQI
16th Sep 2025428 PMAQI
16th Sep 2025469 PMAQI
16th Sep 20254810 PMAQI
16th Sep 20254711 PMAQI
17th Sep 20254112 AMAQI
17th Sep 2025411 AMAQI
17th Sep 2025382 AMAQI
17th Sep 2025383 AMAQI
17th Sep 2025374 AMAQI
17th Sep 2025365 AMAQI
29°C28/30°C
17th Sep 2025376 AMAQI
17th Sep 2025367 AMAQI
17th Sep 2025338 AMAQI
17th Sep 2025329 AMAQI
17th Sep 20254510 AMAQI
17th Sep 20255011 AMAQI
17th Sep 20254612 PMAQI
17th Sep 2025471 PMAQI
17th Sep 2025522 PMAQI
17th Sep 2025513 PMAQI
17th Sep 2025534 PMAQI
17th Sep 2025385 PMAQI
17th Sep 2025406 PMAQI
17th Sep 2025427 PMAQI
17th Sep 2025458 PMAQI
17th Sep 2025509 PMAQI
17th Sep 20254710 PMAQI
17th Sep 20254011 PMAQI
18th Sep 20253412 AMAQI
18th Sep 2025381 AMAQI
18th Sep 2025382 AMAQI
18th Sep 2025393 AMAQI
18th Sep 2025414 AMAQI
18th Sep 2025415 AMAQI
29°C28/30°C
18th Sep 2025416 AMAQI
6 AM18th Sep 2025417 AMAQI
18th Sep 2025348 AMAQI
18th Sep 2025339 AMAQI
18th Sep 20253210 AMAQI
12 PM
6 PM
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 - 9 AM
35AQI
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. 42), while the lowest AQI was between 8 AM to 9 AM (Avg. 35).
Night time
Avg. Highest Time
8 PM - 10 PM
44AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
12 AM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 10 PM (Avg. 44), while the lowest AQI was between 12 AM to 12 AM (Avg. 40).
2025 Days Vs Air Quality
Mong Kok, Kowloon, Hong Kong, China
2025
41%
105
54%
140
5%
14
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Good
105 DaysModerate
140 DaysPoor
14 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 41%
Health Risk Level:
Significant
In 2025, 41% of 261 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
Mong Kok, Kowloon, 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
107AQI
2nd January 2025
130AQI
130AQI
3rd January 2025
99AQI
99AQI
4th January 2025
104AQI
104AQI
5th January 2025
94AQI
94AQI
6th January 2025
102AQI
102AQI
7th January 2025
95AQI
95AQI
8th January 2025
106AQI
106AQI
9th January 2025
110AQI
110AQI
10th January 2025
82AQI
82AQI
11th January 2025
93AQI
93AQI
12th January 2025
68AQI
68AQI
13th January 2025
75AQI
75AQI
14th January 2025
72AQI
72AQI
15th January 2025
77AQI
77AQI
16th January 2025
111AQI
111AQI
17th January 2025
87AQI
87AQI
18th January 2025
101AQI
101AQI
19th January 2025
90AQI
90AQI
20th January 2025
91AQI
91AQI
21st January 2025
86AQI
86AQI
22nd January 2025
85AQI
85AQI
23rd January 2025
82AQI
82AQI
24th January 2025
70AQI
70AQI
25th January 2025
62AQI
62AQI
26th January 2025
54AQI
54AQI
27th January 2025
55AQI
55AQI
28th January 2025
56AQI
56AQI
29th January 2025
81AQI
81AQI
30th January 2025
61AQI
61AQI
31st January 2025
62AQI
62AQI
1st February 2025
60AQI
60AQI
2nd February 2025
58AQI
58AQI
3rd February 2025
37AQI
37AQI
4th February 2025
47AQI
47AQI
5th February 2025
70AQI
70AQI
6th February 2025
64AQI
64AQI
7th February 2025
59AQI
59AQI
8th February 2025
63AQI
63AQI
9th February 2025
58AQI
58AQI
10th February 2025
62AQI
62AQI
11th February 2025
61AQI
61AQI
12th February 2025
58AQI
58AQI
13th February 2025
83AQI
83AQI
14th February 2025
80AQI
80AQI
15th February 2025
82AQI
82AQI
16th February 2025
112AQI
112AQI
17th February 2025
87AQI
87AQI
18th February 2025
120AQI
120AQI
19th February 2025
74AQI
74AQI
20th February 2025
83AQI
83AQI
21st February 2025
79AQI
79AQI
22nd February 2025
72AQI
72AQI
23rd February 2025
50AQI
50AQI
24th February 2025
58AQI
58AQI
25th February 2025
78AQI
78AQI
26th February 2025
84AQI
84AQI
27th February 2025
78AQI
78AQI
28th February 2025
72AQI
72AQI
1st March 2025
73AQI
73AQI
2nd March 2025
60AQI
60AQI
3rd March 2025
54AQI
54AQI
4th March 2025
56AQI
56AQI
5th March 2025
50AQI
50AQI
6th March 2025
43AQI
43AQI
7th March 2025
52AQI
52AQI
8th March 2025
59AQI
59AQI
9th March 2025
65AQI
65AQI
10th March 2025
71AQI
71AQI
11th March 2025
70AQI
70AQI
12th March 2025
65AQI
65AQI
13th March 2025
64AQI
64AQI
14th March 2025
64AQI
64AQI
15th March 2025
56AQI
56AQI
16th March 2025
41AQI
41AQI
17th March 2025
72AQI
72AQI
18th March 2025
64AQI
64AQI
19th March 2025
75AQI
75AQI
20th March 2025
75AQI
75AQI
21st March 2025
79AQI
79AQI
22nd March 2025
73AQI
73AQI
23rd March 2025
75AQI
75AQI
24th March 2025
75AQI
75AQI
25th March 2025
72AQI
72AQI
26th March 2025
59AQI
59AQI
27th March 2025
61AQI
61AQI
28th March 2025
64AQI
64AQI
29th March 2025
44AQI
44AQI
30th March 2025
38AQI
38AQI
31st March 2025
39AQI
39AQI
1st April 2025
49AQI
49AQI
2nd April 2025
53AQI
53AQI
3rd April 2025
61AQI
61AQI
4th April 2025
63AQI
63AQI
5th April 2025
58AQI
58AQI
6th April 2025
71AQI
71AQI
7th April 2025
75AQI
75AQI
8th April 2025
82AQI
82AQI
9th April 2025
67AQI
67AQI
10th April 2025
66AQI
66AQI
11th April 2025
62AQI
62AQI
12th April 2025
57AQI
57AQI
13th April 2025
126AQI
126AQI
14th April 2025
131AQI
131AQI
15th April 2025
131AQI
131AQI
16th April 2025
102AQI
102AQI
17th April 2025
86AQI
86AQI
18th April 2025
74AQI
74AQI
19th April 2025
62AQI
62AQI
20th April 2025
58AQI
58AQI
21st April 2025
55AQI
55AQI
22nd April 2025
58AQI
58AQI
23rd April 2025
54AQI
54AQI
24th April 2025
49AQI
49AQI
25th April 2025
55AQI
55AQI
26th April 2025
54AQI
54AQI
27th April 2025
63AQI
63AQI
28th April 2025
66AQI
66AQI
29th April 2025
64AQI
64AQI
30th April 2025
73AQI
73AQI
1st May 2025
64AQI
64AQI
2nd May 2025
79AQI
79AQI
3rd May 2025
79AQI
79AQI
4th May 2025
63AQI
63AQI
5th May 2025
59AQI
59AQI
6th May 2025
53AQI
53AQI
7th May 2025
56AQI
56AQI
8th May 2025
62AQI
62AQI
9th May 2025
45AQI
45AQI
10th May 2025
58AQI
58AQI
11th May 2025
55AQI
55AQI
12th May 2025
58AQI
58AQI
13th May 2025
63AQI
63AQI
14th May 2025
59AQI
59AQI
15th May 2025
52AQI
52AQI
16th May 2025
46AQI
46AQI
17th May 2025
42AQI
42AQI
18th May 2025
38AQI
38AQI
19th May 2025
45AQI
45AQI
20th May 2025
38AQI
38AQI
21st May 2025
48AQI
48AQI
22nd May 2025
42AQI
42AQI
23rd May 2025
43AQI
43AQI
24th May 2025
49AQI
49AQI
25th May 2025
65AQI
65AQI
26th May 2025
64AQI
64AQI
27th May 2025
69AQI
69AQI
28th May 2025
59AQI
59AQI
29th May 2025
59AQI
59AQI
30th May 2025
48AQI
48AQI
31st May 2025
61AQI
61AQI
1st June 2025
62AQI
62AQI
2nd June 2025
53AQI
53AQI
3rd June 2025
58AQI
58AQI
4th June 2025
44AQI
44AQI
5th June 2025
57AQI
57AQI
6th June 2025
54AQI
54AQI
7th June 2025
46AQI
46AQI
8th June 2025
36AQI
36AQI
9th June 2025
42AQI
42AQI
10th June 2025
37AQI
37AQI
11th June 2025
35AQI
35AQI
12th June 2025
34AQI
34AQI
13th June 2025
36AQI
36AQI
14th June 2025
43AQI
43AQI
15th June 2025
40AQI
40AQI
16th June 2025
41AQI
41AQI
17th June 2025
42AQI
42AQI
18th June 2025
37AQI
37AQI
19th June 2025
39AQI
39AQI
20th June 2025
35AQI
35AQI
21st June 2025
32AQI
32AQI
22nd June 2025
30AQI
30AQI
23rd June 2025
29AQI
29AQI
24th June 2025
28AQI
28AQI
25th June 2025
32AQI
32AQI
26th June 2025
33AQI
33AQI
27th June 2025
34AQI
34AQI
28th June 2025
33AQI
33AQI
29th June 2025
34AQI
34AQI
30th June 2025
32AQI
32AQI
1st July 2025
30AQI
30AQI
2nd July 2025
31AQI
31AQI
3rd July 2025
38AQI
38AQI
4th July 2025
44AQI
44AQI
5th July 2025
44AQI
44AQI
6th July 2025
45AQI
45AQI
7th July 2025
52AQI
52AQI
8th July 2025
40AQI
40AQI
9th July 2025
45AQI
45AQI
10th July 2025
48AQI
48AQI
11th July 2025
49AQI
49AQI
12th July 2025
47AQI
47AQI
13th July 2025
51AQI
51AQI
14th July 2025
47AQI
47AQI
15th July 2025
51AQI
51AQI
16th July 2025
48AQI
48AQI
17th July 2025
54AQI
54AQI
18th July 2025
54AQI
54AQI
19th July 2025
60AQI
60AQI
20th July 2025
37AQI
37AQI
21st July 2025
46AQI
46AQI
22nd July 2025
47AQI
47AQI
23rd July 2025
43AQI
43AQI
24th July 2025
55AQI
55AQI
25th July 2025
63AQI
63AQI
26th July 2025
62AQI
62AQI
27th July 2025
51AQI
51AQI
28th July 2025
56AQI
56AQI
29th July 2025
53AQI
53AQI
30th July 2025
59AQI
59AQI
31st July 2025
52AQI
52AQI
1st August 2025
53AQI
53AQI
2nd August 2025
52AQI
52AQI
3rd August 2025
54AQI
54AQI
4th August 2025
53AQI
53AQI
5th August 2025
49AQI
49AQI
6th August 2025
45AQI
45AQI
7th August 2025
48AQI
48AQI
8th August 2025
53AQI
53AQI
9th August 2025
50AQI
50AQI
10th August 2025
38AQI
38AQI
11th August 2025
42AQI
42AQI
12th August 2025
48AQI
48AQI
13th August 2025
51AQI
51AQI
14th August 2025
42AQI
42AQI
15th August 2025
37AQI
37AQI
16th August 2025
40AQI
40AQI
17th August 2025
37AQI
37AQI
18th August 2025
34AQI
34AQI
19th August 2025
40AQI
40AQI
20th August 2025
39AQI
39AQI
21st August 2025
38AQI
38AQI
22nd August 2025
40AQI
40AQI
23rd August 2025
45AQI
45AQI
24th August 2025
41AQI
41AQI
25th August 2025
38AQI
38AQI
26th August 2025
42AQI
42AQI
27th August 2025
44AQI
44AQI
28th August 2025
49AQI
49AQI
29th August 2025
47AQI
47AQI
30th August 2025
45AQI
45AQI
31st August 2025
42AQI
42AQI
1st September 2025
42AQI
42AQI
2nd September 2025
39AQI
39AQI
3rd September 2025
41AQI
41AQI
4th September 2025
41AQI
41AQI
5th September 2025
37AQI
37AQI
6th September 2025
45AQI
45AQI
7th September 2025
42AQI
42AQI
8th September 2025
34AQI
34AQI
9th September 2025
38AQI
38AQI
10th September 2025
36AQI
36AQI
11th September 2025
38AQI
38AQI
12th September 2025
40AQI
40AQI
13th September 2025
38AQI
38AQI
14th September 2025
35AQI
35AQI
15th September 2025
34AQI
34AQI
16th September 2025
36AQI
36AQI
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
85AQI
71AQI
62AQI
71AQI
56AQI
40AQI
48AQI
44AQI
39AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202558AQI
23
8
3
23
2
6
25
2
24
4
11
20
25
5
17
14
25
6
16
105
140
14
Highest AQI recorded in
January85AQI
Lowest AQI recorded in
September39AQI
202460AQI
24
7
3
26
3
26
2
9
21
10
21
29
29
2
24
7
19
11
3
28
8
22
23
8
137
211
17
Highest AQI recorded in
December89AQI
Lowest AQI recorded in
July30AQI
202361AQI
2
28
1
1
25
2
2
25
4
2
28
7
23
1
25
5
25
6
22
9
25
5
9
22
3
26
3
25
3
126
227
11
Highest AQI recorded in
March77AQI
Lowest AQI recorded in
July39AQI
202259AQI
4
20
7
10
11
11
15
5
7
21
1
17
14
30
19
2
1
4
19
5
3
28
6
24
11
18
2
122
172
21
Highest AQI recorded in
August126AQI
Lowest AQI recorded in
June33AQI
202162AQI
22
8
1
2
24
2
5
22
4
1
27
2
21
10
23
6
1
22
9
22
9
18
12
14
17
5
25
3
20
7
1
136
203
24
2
Highest AQI recorded in
January92AQI
Lowest AQI recorded in
August42AQI
202056AQI
1
11
1
4
17
10
8
30
31
23
8
13
14
3
1
30
1
27
2
25
6
114
140
12
Highest AQI recorded in
December86AQI
Lowest AQI recorded in
July27AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
62AQILeast Polluted Year Recorded
2020(Avg.)
56AQIMong Kok's annual 2025 AQI (58) shows an average percentage change of -2.02% (improved AQI) compared to previous years: 2020 (56), 2021 (62), 2022 (59), 2023 (61), 2024 (60).
