Tsuen Wan, 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+
October Air Quality Analysis
Tsuen Wan, Hong Kong, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Oct 2021
93AQILowest AQI recorded on
8th Oct 2021
19AQISame Day Analysis (8th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 64 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 8th Oct - 9th Oct 2025
Tsuen Wan, Hong Kong, China
AQI
Day
Night
.
6 AM8th Oct 2025
6 PM
5 AM9th Oct 2025
Day time
Avg. Highest Time
2PM8th Oct
66AQI
Avg. Lowest Time
10AM8th Oct
52AQI
Night time
Avg. Highest Time
5AM9th Oct
74AQI
Avg. Lowest Time
3AM9th Oct
59AQI
In the last 24 hours,
Tsuen Wan's AQI reached its highest point of 74 at 5 AM during the Night, while the lowest point, 52, was recorded at 10 AM during the Day between 8th Oct and 9th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Tsuen Wan, Hong Kong, China
SepOct
09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th
Day
Night
9th Sep 2025406 AMAQI
9th Sep 2025437 AMAQI
9th Sep 2025328 AMAQI
9th Sep 2025379 AMAQI
9th Sep 20253910 AMAQI
9th Sep 20253711 AMAQI
9th Sep 20253212 PMAQI
9th Sep 2025381 PMAQI
9th Sep 2025342 PMAQI
9th Sep 2025323 PMAQI
9th Sep 2025394 PMAQI
9th Sep 2025345 PMAQI
9th Sep 2025446 PMAQI
9th Sep 2025467 PMAQI
9th Sep 2025488 PMAQI
9th Sep 2025479 PMAQI
9th Sep 20255110 PMAQI
9th Sep 20255911 PMAQI
10th Sep 20254212 AMAQI
10th Sep 2025431 AMAQI
10th Sep 2025422 AMAQI
10th Sep 2025433 AMAQI
10th Sep 2025424 AMAQI
10th Sep 2025425 AMAQI
28°C28/29°C
10th Sep 2025406 AMAQI
10th Sep 2025397 AMAQI
10th Sep 2025408 AMAQI
10th Sep 2025389 AMAQI
10th Sep 20253510 AMAQI
10th Sep 20254411 AMAQI
10th Sep 20253512 PMAQI
10th Sep 2025441 PMAQI
10th Sep 2025422 PMAQI
10th Sep 2025443 PMAQI
10th Sep 2025384 PMAQI
10th Sep 2025415 PMAQI
10th Sep 2025386 PMAQI
10th Sep 2025507 PMAQI
10th Sep 2025478 PMAQI
10th Sep 2025499 PMAQI
10th Sep 20254310 PMAQI
10th Sep 20254511 PMAQI
11th Sep 20254312 AMAQI
11th Sep 2025461 AMAQI
11th Sep 2025452 AMAQI
11th Sep 2025463 AMAQI
11th Sep 2025454 AMAQI
11th Sep 2025435 AMAQI
28°C27/30°C
11th Sep 2025436 AMAQI
11th Sep 2025417 AMAQI
11th Sep 2025468 AMAQI
11th Sep 2025419 AMAQI
11th Sep 20254510 AMAQI
11th Sep 20254511 AMAQI
11th Sep 20254612 PMAQI
11th Sep 2025401 PMAQI
11th Sep 2025372 PMAQI
11th Sep 2025423 PMAQI
11th Sep 2025414 PMAQI
11th Sep 2025455 PMAQI
11th Sep 2025516 PMAQI
11th Sep 2025547 PMAQI
11th Sep 2025458 PMAQI
11th Sep 2025489 PMAQI
11th Sep 20254810 PMAQI
11th Sep 20254511 PMAQI
12th Sep 20254512 AMAQI
12th Sep 2025421 AMAQI
12th Sep 2025422 AMAQI
12th Sep 2025473 AMAQI
12th Sep 2025424 AMAQI
12th Sep 2025405 AMAQI
29°C27/30°C
12th Sep 2025426 AMAQI
12th Sep 2025417 AMAQI
12th Sep 2025448 AMAQI
12th Sep 2025439 AMAQI
12th Sep 20254410 AMAQI
12th Sep 20255111 AMAQI
12th Sep 20254512 PMAQI
12th Sep 2025431 PMAQI
12th Sep 2025452 PMAQI
12th Sep 2025353 PMAQI
12th Sep 2025434 PMAQI
12th Sep 2025415 PMAQI
12th Sep 2025426 PMAQI
12th Sep 2025447 PMAQI
12th Sep 2025438 PMAQI
12th Sep 2025429 PMAQI
12th Sep 20253610 PMAQI
12th Sep 20253911 PMAQI
13th Sep 20253812 AMAQI
13th Sep 2025421 AMAQI
13th Sep 2025432 AMAQI
13th Sep 2025423 AMAQI
13th Sep 2025414 AMAQI
13th Sep 2025435 AMAQI
29°C28/30°C
13th Sep 2025436 AMAQI
13th Sep 2025417 AMAQI
13th Sep 2025378 AMAQI
13th Sep 2025229 AMAQI
13th Sep 20252610 AMAQI
13th Sep 20253211 AMAQI
13th Sep 20253112 PMAQI
13th Sep 2025321 PMAQI
13th Sep 2025342 PMAQI
13th Sep 2025323 PMAQI
13th Sep 2025334 PMAQI
13th Sep 2025305 PMAQI
13th Sep 2025386 PMAQI
13th Sep 2025477 PMAQI
13th Sep 2025428 PMAQI
13th Sep 2025389 PMAQI
13th Sep 20254510 PMAQI
13th Sep 20253911 PMAQI
14th Sep 20253812 AMAQI
14th Sep 2025401 AMAQI
14th Sep 2025432 AMAQI
14th Sep 2025393 AMAQI
14th Sep 2025394 AMAQI
14th Sep 2025385 AMAQI
29°C28/30°C
14th Sep 2025386 AMAQI
14th Sep 2025387 AMAQI
14th Sep 2025368 AMAQI
14th Sep 2025489 AMAQI
14th Sep 20253510 AMAQI
14th Sep 20254011 AMAQI
14th Sep 20253512 PMAQI
14th Sep 2025341 PMAQI
14th Sep 2025332 PMAQI
14th Sep 2025313 PMAQI
14th Sep 2025264 PMAQI
14th Sep 2025315 PMAQI
14th Sep 2025356 PMAQI
14th Sep 2025427 PMAQI
14th Sep 2025438 PMAQI
14th Sep 2025399 PMAQI
14th Sep 20253510 PMAQI
14th Sep 20253911 PMAQI
15th Sep 20253712 AMAQI
15th Sep 2025431 AMAQI
15th Sep 2025402 AMAQI
15th Sep 2025393 AMAQI
15th Sep 2025394 AMAQI
15th Sep 2025405 AMAQI
29°C28/30°C
15th Sep 2025396 AMAQI
15th Sep 2025407 AMAQI
15th Sep 2025488 AMAQI
15th Sep 2025459 AMAQI
15th Sep 20255510 AMAQI
15th Sep 20254411 AMAQI
15th Sep 20253612 PMAQI
15th Sep 2025331 PMAQI
15th Sep 2025362 PMAQI
15th Sep 2025393 PMAQI
15th Sep 2025344 PMAQI
15th Sep 2025305 PMAQI
15th Sep 2025236 PMAQI
15th Sep 2025277 PMAQI
15th Sep 2025348 PMAQI
15th Sep 2025379 PMAQI
15th Sep 20253710 PMAQI
15th Sep 20253911 PMAQI
16th Sep 20253212 AMAQI
16th Sep 2025401 AMAQI
16th Sep 2025402 AMAQI
16th Sep 2025403 AMAQI
16th Sep 2025404 AMAQI
16th Sep 2025395 AMAQI
29°C28/30°C
16th Sep 2025406 AMAQI
16th Sep 2025407 AMAQI
16th Sep 2025308 AMAQI
16th Sep 2025279 AMAQI
16th Sep 20253110 AMAQI
16th Sep 20253211 AMAQI
16th Sep 20254312 PMAQI
16th Sep 2025401 PMAQI
16th Sep 2025302 PMAQI
16th Sep 2025343 PMAQI
16th Sep 2025354 PMAQI
16th Sep 2025425 PMAQI
16th Sep 2025326 PMAQI
16th Sep 2025447 PMAQI
16th Sep 2025388 PMAQI
16th Sep 2025429 PMAQI
16th Sep 20254910 PMAQI
16th Sep 20255011 PMAQI
17th Sep 20254512 AMAQI
17th Sep 2025381 AMAQI
17th Sep 2025442 AMAQI
17th Sep 2025383 AMAQI
17th Sep 2025374 AMAQI
17th Sep 2025385 AMAQI
29°C28/30°C
17th Sep 2025396 AMAQI
17th Sep 2025377 AMAQI
17th Sep 2025448 AMAQI
17th Sep 2025439 AMAQI
17th Sep 20255010 AMAQI
17th Sep 20255311 AMAQI
17th Sep 20255712 PMAQI
17th Sep 2025491 PMAQI
17th Sep 2025562 PMAQI
17th Sep 2025533 PMAQI
17th Sep 2025494 PMAQI
17th Sep 2025485 PMAQI
17th Sep 2025526 PMAQI
17th Sep 2025517 PMAQI
17th Sep 2025488 PMAQI
17th Sep 2025469 PMAQI
17th Sep 20254410 PMAQI
17th Sep 20253811 PMAQI
18th Sep 20253812 AMAQI
18th Sep 2025401 AMAQI
18th Sep 2025402 AMAQI
18th Sep 2025423 AMAQI
18th Sep 2025444 AMAQI
18th Sep 2025445 AMAQI
29°C28/30°C
18th Sep 2025436 AMAQI
18th Sep 2025447 AMAQI
18th Sep 2025458 AMAQI
18th Sep 2025429 AMAQI
18th Sep 20253810 AMAQI
18th Sep 20253711 AMAQI
18th Sep 20253912 PMAQI
18th Sep 2025481 PMAQI
18th Sep 2025412 PMAQI
18th Sep 2025453 PMAQI
18th Sep 2025534 PMAQI
18th Sep 2025425 PMAQI
18th Sep 2025426 PMAQI
18th Sep 2025387 PMAQI
18th Sep 2025378 PMAQI
18th Sep 2025429 PMAQI
18th Sep 20254710 PMAQI
18th Sep 20254511 PMAQI
19th Sep 20254212 AMAQI
19th Sep 2025451 AMAQI
19th Sep 2025432 AMAQI
19th Sep 2025433 AMAQI
19th Sep 2025434 AMAQI
19th Sep 2025435 AMAQI
29°C27/30°C
19th Sep 2025426 AMAQI
19th Sep 2025427 AMAQI
19th Sep 2025368 AMAQI
19th Sep 2025329 AMAQI
19th Sep 20253110 AMAQI
19th Sep 20253111 AMAQI
19th Sep 20253612 PMAQI
19th Sep 2025371 PMAQI
19th Sep 2025392 PMAQI
19th Sep 2025413 PMAQI
19th Sep 2025364 PMAQI
19th Sep 2025285 PMAQI
19th Sep 2025266 PMAQI
19th Sep 2025337 PMAQI
19th Sep 2025388 PMAQI
19th Sep 2025399 PMAQI
19th Sep 20254410 PMAQI
19th Sep 20254211 PMAQI
20th Sep 20254412 AMAQI
20th Sep 2025441 AMAQI
20th Sep 2025442 AMAQI
20th Sep 2025433 AMAQI
20th Sep 2025424 AMAQI
20th Sep 2025425 AMAQI
28°C27/30°C
20th Sep 2025406 AMAQI
20th Sep 2025417 AMAQI
20th Sep 2025228 AMAQI
20th Sep 2025189 AMAQI
20th Sep 20252110 AMAQI
20th Sep 20252011 AMAQI
20th Sep 20253012 PMAQI
20th Sep 2025361 PMAQI
20th Sep 2025362 PMAQI
20th Sep 2025473 PMAQI
20th Sep 2025554 PMAQI
20th Sep 2025605 PMAQI
20th Sep 2025626 PMAQI
20th Sep 2025637 PMAQI
20th Sep 2025648 PMAQI
20th Sep 2025609 PMAQI
20th Sep 20255610 PMAQI
20th Sep 20255311 PMAQI
21st Sep 20255112 AMAQI
21st Sep 2025461 AMAQI
21st Sep 2025432 AMAQI
21st Sep 2025433 AMAQI
21st Sep 2025404 AMAQI
21st Sep 2025405 AMAQI
26°C26/27°C
21st Sep 2025406 AMAQI
21st Sep 2025407 AMAQI
21st Sep 2025288 AMAQI
21st Sep 2025179 AMAQI
21st Sep 20251810 AMAQI
21st Sep 20251711 AMAQI
21st Sep 20252512 PMAQI
21st Sep 2025211 PMAQI
21st Sep 2025242 PMAQI
21st Sep 2025273 PMAQI
21st Sep 2025284 PMAQI
21st Sep 2025255 PMAQI
21st Sep 2025276 PMAQI
21st Sep 2025307 PMAQI
21st Sep 2025388 PMAQI
21st Sep 2025399 PMAQI
21st Sep 20254210 PMAQI
21st Sep 20254211 PMAQI
22nd Sep 20254412 AMAQI
22nd Sep 2025441 AMAQI
22nd Sep 2025452 AMAQI
22nd Sep 2025433 AMAQI
22nd Sep 2025394 AMAQI
22nd Sep 2025405 AMAQI
28°C26/29°C
22nd Sep 2025406 AMAQI
22nd Sep 2025397 AMAQI
22nd Sep 2025508 AMAQI
22nd Sep 2025449 AMAQI
22nd Sep 20255410 AMAQI
22nd Sep 20255011 AMAQI
22nd Sep 20255212 PMAQI
22nd Sep 2025501 PMAQI
22nd Sep 2025492 PMAQI
22nd Sep 2025513 PMAQI
22nd Sep 2025564 PMAQI
22nd Sep 2025595 PMAQI
22nd Sep 2025616 PMAQI
22nd Sep 2025607 PMAQI
22nd Sep 2025548 PMAQI
22nd Sep 2025549 PMAQI
22nd Sep 20255410 PMAQI
22nd Sep 20255511 PMAQI
23rd Sep 20255412 AMAQI
23rd Sep 2025481 AMAQI
23rd Sep 2025432 AMAQI
23rd Sep 2025433 AMAQI
23rd Sep 2025444 AMAQI
23rd Sep 2025445 AMAQI
29°C27/31°C
23rd Sep 2025436 AMAQI
23rd Sep 2025447 AMAQI
23rd Sep 2025508 AMAQI
23rd Sep 2025569 AMAQI
23rd Sep 20255610 AMAQI
23rd Sep 20255811 AMAQI
23rd Sep 20255712 PMAQI
23rd Sep 2025601 PMAQI
23rd Sep 2025582 PMAQI
23rd Sep 2025563 PMAQI
23rd Sep 2025554 PMAQI
23rd Sep 2025565 PMAQI
23rd Sep 2025556 PMAQI
23rd Sep 2025547 PMAQI
23rd Sep 2025538 PMAQI
23rd Sep 2025539 PMAQI
23rd Sep 20254910 PMAQI
23rd Sep 20254011 PMAQI
24th Sep 20253812 AMAQI
24th Sep 2025471 AMAQI
24th Sep 2025482 AMAQI
24th Sep 2025503 AMAQI
24th Sep 2025514 AMAQI
24th Sep 2025515 AMAQI
28°C27/29°C
24th Sep 2025516 AMAQI
24th Sep 2025507 AMAQI
24th Sep 2025308 AMAQI
24th Sep 2025209 AMAQI
24th Sep 20252010 AMAQI
24th Sep 20251711 AMAQI
24th Sep 20251912 PMAQI
24th Sep 2025241 PMAQI
24th Sep 2025252 PMAQI
24th Sep 2025243 PMAQI
24th Sep 2025244 PMAQI
24th Sep 2025235 PMAQI
24th Sep 2025236 PMAQI
24th Sep 2025277 PMAQI
24th Sep 2025358 PMAQI
24th Sep 2025379 PMAQI
24th Sep 20253910 PMAQI
24th Sep 20254011 PMAQI
25th Sep 20254012 AMAQI
25th Sep 2025451 AMAQI
25th Sep 2025482 AMAQI
25th Sep 2025463 AMAQI
25th Sep 2025434 AMAQI
25th Sep 2025425 AMAQI
27°C26/27°C
25th Sep 2025436 AMAQI
25th Sep 2025437 AMAQI
25th Sep 2025358 AMAQI
25th Sep 2025389 AMAQI
25th Sep 20254110 AMAQI
25th Sep 20254111 AMAQI
25th Sep 20253812 PMAQI
25th Sep 2025341 PMAQI
25th Sep 2025442 PMAQI
25th Sep 2025383 PMAQI
25th Sep 2025474 PMAQI
25th Sep 2025485 PMAQI
25th Sep 2025396 PMAQI
25th Sep 2025367 PMAQI
25th Sep 2025308 PMAQI
25th Sep 2025329 PMAQI
25th Sep 20253510 PMAQI
25th Sep 20253011 PMAQI
26th Sep 20252512 AMAQI
26th Sep 2025291 AMAQI
26th Sep 2025342 AMAQI
26th Sep 2025283 AMAQI
26th Sep 2025274 AMAQI
26th Sep 2025335 AMAQI
27°C27/28°C
26th Sep 2025436 AMAQI
26th Sep 2025517 AMAQI
26th Sep 2025388 AMAQI
26th Sep 2025399 AMAQI
26th Sep 20253710 AMAQI
26th Sep 20254011 AMAQI
26th Sep 20254512 PMAQI
26th Sep 2025481 PMAQI
26th Sep 2025522 PMAQI
26th Sep 2025533 PMAQI
26th Sep 2025504 PMAQI
26th Sep 2025495 PMAQI
26th Sep 2025566 PMAQI
26th Sep 2025597 PMAQI
26th Sep 2025598 PMAQI
26th Sep 2025589 PMAQI
26th Sep 20254810 PMAQI
26th Sep 20254111 PMAQI
27th Sep 20254012 AMAQI
27th Sep 2025391 AMAQI
27th Sep 2025402 AMAQI
27th Sep 2025333 AMAQI
27th Sep 2025304 AMAQI
27th Sep 2025275 AMAQI
28°C27/29°C
27th Sep 2025296 AMAQI
27th Sep 2025297 AMAQI
27th Sep 2025298 AMAQI
27th Sep 2025199 AMAQI
27th Sep 20252410 AMAQI
27th Sep 20252511 AMAQI
27th Sep 20252812 PMAQI
27th Sep 2025301 PMAQI
27th Sep 2025302 PMAQI
27th Sep 2025263 PMAQI
27th Sep 2025284 PMAQI
27th Sep 2025285 PMAQI
27th Sep 2025316 PMAQI
27th Sep 2025377 PMAQI
27th Sep 2025368 PMAQI
27th Sep 2025409 PMAQI
27th Sep 20254210 PMAQI
27th Sep 20253611 PMAQI
28th Sep 20253412 AMAQI
28th Sep 2025411 AMAQI
28th Sep 2025452 AMAQI
28th Sep 2025463 AMAQI
28th Sep 2025464 AMAQI
28th Sep 2025465 AMAQI
28°C27/29°C
28th Sep 2025486 AMAQI
28th Sep 2025507 AMAQI
28th Sep 2025498 AMAQI
28th Sep 2025459 AMAQI
28th Sep 20254310 AMAQI
28th Sep 20254511 AMAQI
28th Sep 20254412 PMAQI
28th Sep 2025441 PMAQI
28th Sep 2025412 PMAQI
28th Sep 2025343 PMAQI
28th Sep 2025404 PMAQI
28th Sep 2025385 PMAQI
28th Sep 2025326 PMAQI
28th Sep 2025277 PMAQI
28th Sep 2025348 PMAQI
28th Sep 2025369 PMAQI
28th Sep 20253410 PMAQI
28th Sep 20253211 PMAQI
29th Sep 20252812 AMAQI
29th Sep 2025271 AMAQI
29th Sep 2025232 AMAQI
29th Sep 2025263 AMAQI
29th Sep 2025444 AMAQI
29th Sep 2025395 AMAQI
28°C27/29°C
29th Sep 2025436 AMAQI
29th Sep 2025417 AMAQI
29th Sep 2025328 AMAQI
29th Sep 2025299 AMAQI
29th Sep 20253610 AMAQI
29th Sep 20254911 AMAQI
29th Sep 20254212 PMAQI
29th Sep 2025391 PMAQI
29th Sep 2025372 PMAQI
29th Sep 2025363 PMAQI
29th Sep 2025414 PMAQI
29th Sep 2025405 PMAQI
29th Sep 2025286 PMAQI
29th Sep 2025427 PMAQI
29th Sep 2025418 PMAQI
29th Sep 2025449 PMAQI
29th Sep 20254910 PMAQI
29th Sep 20254411 PMAQI
30th Sep 20254612 AMAQI
30th Sep 2025311 AMAQI
30th Sep 2025242 AMAQI
30th Sep 2025253 AMAQI
30th Sep 2025274 AMAQI
30th Sep 2025225 AMAQI
28°C27/29°C
30th Sep 2025316 AMAQI
30th Sep 2025637 AMAQI
30th Sep 2025548 AMAQI
30th Sep 2025419 AMAQI
30th Sep 20254310 AMAQI
30th Sep 20255211 AMAQI
30th Sep 20256012 PMAQI
30th Sep 2025561 PMAQI
30th Sep 2025512 PMAQI
30th Sep 2025533 PMAQI
30th Sep 2025644 PMAQI
30th Sep 2025605 PMAQI
30th Sep 2025506 PMAQI
30th Sep 2025477 PMAQI
30th Sep 2025538 PMAQI
30th Sep 2025629 PMAQI
30th Sep 20257510 PMAQI
30th Sep 20257011 PMAQI
1st Oct 20255812 AMAQI
1st Oct 2025491 AMAQI
1st Oct 2025582 AMAQI
1st Oct 2025603 AMAQI
1st Oct 2025614 AMAQI
1st Oct 2025445 AMAQI
28°C27/29°C
1st Oct 2025416 AMAQI
1st Oct 2025497 AMAQI
1st Oct 2025468 AMAQI
1st Oct 2025549 AMAQI
1st Oct 20255610 AMAQI
1st Oct 20255211 AMAQI
1st Oct 20255112 PMAQI
1st Oct 2025461 PMAQI
1st Oct 2025452 PMAQI
1st Oct 2025493 PMAQI
1st Oct 2025464 PMAQI
1st Oct 2025445 PMAQI
1st Oct 2025456 PMAQI
1st Oct 2025497 PMAQI
1st Oct 2025508 PMAQI
1st Oct 2025509 PMAQI
1st Oct 20255010 PMAQI
1st Oct 20255411 PMAQI
2nd Oct 20254812 AMAQI
2nd Oct 2025481 AMAQI
2nd Oct 2025472 AMAQI
2nd Oct 2025493 AMAQI
2nd Oct 2025534 AMAQI
2nd Oct 2025485 AMAQI
28°C27/29°C
2nd Oct 2025516 AMAQI
2nd Oct 2025537 AMAQI
2nd Oct 2025508 AMAQI
2nd Oct 2025459 AMAQI
2nd Oct 20254510 AMAQI
2nd Oct 20254811 AMAQI
2nd Oct 20255312 PMAQI
2nd Oct 2025511 PMAQI
2nd Oct 2025502 PMAQI
2nd Oct 2025513 PMAQI
2nd Oct 2025464 PMAQI
2nd Oct 2025485 PMAQI
2nd Oct 2025516 PMAQI
2nd Oct 2025517 PMAQI
2nd Oct 2025478 PMAQI
2nd Oct 2025479 PMAQI
2nd Oct 20255710 PMAQI
2nd Oct 20255211 PMAQI
3rd Oct 20254912 AMAQI
3rd Oct 2025491 AMAQI
3rd Oct 2025492 AMAQI
3rd Oct 2025463 AMAQI
3rd Oct 2025424 AMAQI
3rd Oct 2025435 AMAQI
28°C27/29°C
3rd Oct 2025406 AMAQI
3rd Oct 2025387 AMAQI
3rd Oct 2025388 AMAQI
3rd Oct 2025349 AMAQI
3rd Oct 20254110 AMAQI
3rd Oct 20254611 AMAQI
3rd Oct 20254612 PMAQI
3rd Oct 2025491 PMAQI
3rd Oct 2025462 PMAQI
3rd Oct 2025493 PMAQI
3rd Oct 2025474 PMAQI
3rd Oct 2025515 PMAQI
3rd Oct 2025566 PMAQI
3rd Oct 2025447 PMAQI
3rd Oct 2025548 PMAQI
3rd Oct 2025529 PMAQI
3rd Oct 20255010 PMAQI
3rd Oct 20255411 PMAQI
4th Oct 20256512 AMAQI
4th Oct 2025521 AMAQI
4th Oct 2025622 AMAQI
4th Oct 2025673 AMAQI
4th Oct 2025674 AMAQI
4th Oct 2025925 AMAQI
28°C27/29°C
4th Oct 2025476 AMAQI
4th Oct 2025747 AMAQI
4th Oct 2025698 AMAQI
4th Oct 2025519 AMAQI
4th Oct 20255110 AMAQI
4th Oct 20255411 AMAQI
4th Oct 20256312 PMAQI
4th Oct 2025701 PMAQI
4th Oct 2025622 PMAQI
4th Oct 2025633 PMAQI
4th Oct 2025674 PMAQI
4th Oct 2025625 PMAQI
4th Oct 2025606 PMAQI
4th Oct 2025587 PMAQI
4th Oct 2025508 PMAQI
4th Oct 2025509 PMAQI
4th Oct 20255210 PMAQI
4th Oct 20255211 PMAQI
5th Oct 20254712 AMAQI
5th Oct 2025571 AMAQI
5th Oct 2025522 AMAQI
5th Oct 2025523 AMAQI
5th Oct 2025474 AMAQI
5th Oct 2025425 AMAQI
28°C27/30°C
5th Oct 2025436 AMAQI
5th Oct 2025417 AMAQI
5th Oct 2025428 AMAQI
5th Oct 2025479 AMAQI
5th Oct 20254610 AMAQI
5th Oct 20253811 AMAQI
5th Oct 20255112 PMAQI
5th Oct 2025391 PMAQI
5th Oct 2025492 PMAQI
5th Oct 2025503 PMAQI
5th Oct 2025504 PMAQI
5th Oct 2025535 PMAQI
5th Oct 2025466 PMAQI
5th Oct 2025417 PMAQI
5th Oct 2025508 PMAQI
5th Oct 2025609 PMAQI
5th Oct 20256710 PMAQI
5th Oct 20255011 PMAQI
6th Oct 20254812 AMAQI
6th Oct 2025491 AMAQI
6th Oct 2025492 AMAQI
6th Oct 2025443 AMAQI
6th Oct 2025524 AMAQI
6th Oct 2025405 AMAQI
28°C27/29°C
6th Oct 2025436 AMAQI
6th Oct 2025397 AMAQI
6th Oct 2025418 AMAQI
6th Oct 2025419 AMAQI
6th Oct 20254110 AMAQI
6th Oct 20253811 AMAQI
6th Oct 20253912 PMAQI
6th Oct 2025391 PMAQI
6th Oct 2025432 PMAQI
6th Oct 2025493 PMAQI
6th Oct 2025454 PMAQI
6th Oct 2025405 PMAQI
6th Oct 2025426 PMAQI
6th Oct 2025397 PMAQI
6th Oct 2025448 PMAQI
6th Oct 2025509 PMAQI
6th Oct 20255610 PMAQI
6th Oct 20255611 PMAQI
7th Oct 20255912 AMAQI
7th Oct 2025601 AMAQI
27°C26/28°C
7th Oct 2025507 PMAQI
7th Oct 2025538 PMAQI
7th Oct 2025609 PMAQI
7th Oct 20256510 PMAQI
7th Oct 20256611 PMAQI
8th Oct 20256812 AMAQI
8th Oct 2025681 AMAQI
8th Oct 2025722 AMAQI
8th Oct 2025733 AMAQI
8th Oct 2025574 AMAQI
8th Oct 2025585 AMAQI
28°C27/29°C
8th Oct 2025596 AMAQI
8th Oct 2025537 AMAQI
8th Oct 2025628 AMAQI
8th Oct 2025539 AMAQI
8th Oct 20255210 AMAQI
8th Oct 20255611 AMAQI
8th Oct 20255712 PMAQI
8th Oct 2025591 PMAQI
8th Oct 2025662 PMAQI
8th Oct 2025653 PMAQI
8th Oct 2025664 PMAQI
8th Oct 2025645 PMAQI
8th Oct 2025646 PMAQI
8th Oct 2025637 PMAQI
8th Oct 2025708 PMAQI
8th Oct 2025729 PMAQI
8th Oct 20256810 PMAQI
8th Oct 20256511 PMAQI
9th Oct 20256312 AMAQI
9th Oct 2025641 AMAQI
9th Oct 2025632 AMAQI
9th Oct 2025593 AMAQI
9th Oct 2025604 AMAQI
9th Oct 2025745 AMAQI
28°C27/30°C
9th Oct 2025766 AMAQI
6 AM9th Oct 2025767 AMAQI
9th Oct 2025698 AMAQI
9th Oct 2025649 AMAQI
9th Oct 20256410 AMAQI
9th Oct 20257011 AMAQI
9th Oct 20256712 PMAQI
12 PM9th Oct 2025661 PMAQI
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
7 AM
45AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
9 AM
39AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 7 AM (Avg. 45), while the lowest AQI was between 9 AM to 9 AM (Avg. 39).
Night time
Avg. Highest Time
9 PM - 10 PM
49AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 8 PM
45AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 10 PM (Avg. 49), while the lowest AQI was between 12 AM to 8 PM (Avg. 45).
2025 Days Vs Air Quality
Tsuen Wan, Hong Kong, China
2025
38%
107
58%
164
4%
10
Total number of days with different AQI categories in last 282 days in 2025 (83 days remaining)
Good
107 DaysModerate
164 DaysPoor
10 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 38%
Health Risk Level:
High
In 2025, 38% of 282 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
Tsuen Wan, 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
109AQI
109AQI
2nd January 2025
130AQI
130AQI
3rd January 2025
99AQI
99AQI
4th January 2025
100AQI
100AQI
5th January 2025
97AQI
97AQI
6th January 2025
100AQI
100AQI
7th January 2025
90AQI
90AQI
8th January 2025
103AQI
103AQI
9th January 2025
104AQI
104AQI
10th January 2025
83AQI
83AQI
11th January 2025
91AQI
91AQI
12th January 2025
68AQI
68AQI
13th January 2025
72AQI
72AQI
14th January 2025
66AQI
66AQI
15th January 2025
78AQI
78AQI
16th January 2025
106AQI
106AQI
17th January 2025
85AQI
85AQI
18th January 2025
98AQI
98AQI
19th January 2025
92AQI
92AQI
20th January 2025
93AQI
93AQI
21st January 2025
82AQI
82AQI
22nd January 2025
84AQI
84AQI
23rd January 2025
82AQI
82AQI
24th January 2025
68AQI
68AQI
25th January 2025
61AQI
61AQI
26th January 2025
54AQI
54AQI
27th January 2025
57AQI
57AQI
28th January 2025
58AQI
58AQI
29th January 2025
79AQI
79AQI
30th January 2025
61AQI
61AQI
31st January 2025
62AQI
62AQI
1st February 2025
52AQI
52AQI
2nd February 2025
54AQI
54AQI
3rd February 2025
39AQI
39AQI
4th February 2025
48AQI
48AQI
5th February 2025
70AQI
70AQI
6th February 2025
62AQI
62AQI
7th February 2025
59AQI
59AQI
8th February 2025
64AQI
64AQI
9th February 2025
58AQI
58AQI
10th February 2025
62AQI
62AQI
11th February 2025
59AQI
59AQI
12th February 2025
60AQI
60AQI
13th February 2025
82AQI
82AQI
14th February 2025
75AQI
75AQI
15th February 2025
82AQI
82AQI
16th February 2025
111AQI
111AQI
17th February 2025
87AQI
87AQI
18th February 2025
115AQI
115AQI
19th February 2025
72AQI
72AQI
20th February 2025
79AQI
79AQI
21st February 2025
78AQI
78AQI
22nd February 2025
68AQI
68AQI
23rd February 2025
56AQI
56AQI
24th February 2025
58AQI
58AQI
25th February 2025
81AQI
81AQI
26th February 2025
88AQI
88AQI
27th February 2025
77AQI
77AQI
28th February 2025
73AQI
73AQI
1st March 2025
67AQI
67AQI
2nd March 2025
61AQI
61AQI
3rd March 2025
59AQI
59AQI
4th March 2025
57AQI
57AQI
5th March 2025
48AQI
48AQI
6th March 2025
44AQI
44AQI
7th March 2025
52AQI
52AQI
8th March 2025
67AQI
67AQI
9th March 2025
63AQI
63AQI
10th March 2025
68AQI
68AQI
11th March 2025
66AQI
66AQI
12th March 2025
65AQI
65AQI
13th March 2025
67AQI
67AQI
14th March 2025
61AQI
61AQI
15th March 2025
58AQI
58AQI
16th March 2025
46AQI
46AQI
17th March 2025
72AQI
72AQI
18th March 2025
66AQI
66AQI
19th March 2025
72AQI
72AQI
20th March 2025
73AQI
73AQI
21st March 2025
77AQI
77AQI
22nd March 2025
75AQI
75AQI
23rd March 2025
75AQI
75AQI
24th March 2025
77AQI
77AQI
25th March 2025
75AQI
75AQI
26th March 2025
63AQI
63AQI
27th March 2025
63AQI
63AQI
28th March 2025
66AQI
66AQI
29th March 2025
47AQI
47AQI
30th March 2025
42AQI
42AQI
31st March 2025
41AQI
41AQI
1st April 2025
53AQI
53AQI
2nd April 2025
56AQI
56AQI
3rd April 2025
61AQI
61AQI
4th April 2025
62AQI
62AQI
5th April 2025
60AQI
60AQI
6th April 2025
74AQI
74AQI
7th April 2025
72AQI
72AQI
8th April 2025
80AQI
80AQI
9th April 2025
70AQI
70AQI
10th April 2025
70AQI
70AQI
11th April 2025
66AQI
66AQI
12th April 2025
62AQI
62AQI
13th April 2025
126AQI
126AQI
14th April 2025
130AQI
130AQI
15th April 2025
128AQI
128AQI
16th April 2025
99AQI
99AQI
17th April 2025
86AQI
86AQI
18th April 2025
73AQI
73AQI
19th April 2025
63AQI
63AQI
20th April 2025
59AQI
59AQI
21st April 2025
58AQI
58AQI
22nd April 2025
59AQI
59AQI
23rd April 2025
57AQI
57AQI
24th April 2025
51AQI
51AQI
25th April 2025
57AQI
57AQI
26th April 2025
51AQI
51AQI
27th April 2025
59AQI
59AQI
28th April 2025
70AQI
70AQI
29th April 2025
61AQI
61AQI
30th April 2025
71AQI
71AQI
1st May 2025
65AQI
65AQI
2nd May 2025
76AQI
76AQI
3rd May 2025
77AQI
77AQI
4th May 2025
65AQI
65AQI
5th May 2025
60AQI
60AQI
6th May 2025
58AQI
58AQI
7th May 2025
55AQI
55AQI
8th May 2025
60AQI
60AQI
9th May 2025
53AQI
53AQI
10th May 2025
63AQI
63AQI
11th May 2025
57AQI
57AQI
12th May 2025
60AQI
60AQI
13th May 2025
63AQI
63AQI
14th May 2025
56AQI
56AQI
15th May 2025
51AQI
51AQI
16th May 2025
45AQI
45AQI
17th May 2025
45AQI
45AQI
18th May 2025
43AQI
43AQI
19th May 2025
47AQI
47AQI
20th May 2025
42AQI
42AQI
21st May 2025
48AQI
48AQI
22nd May 2025
46AQI
46AQI
23rd May 2025
47AQI
47AQI
24th May 2025
50AQI
50AQI
25th May 2025
67AQI
67AQI
26th May 2025
63AQI
63AQI
27th May 2025
67AQI
67AQI
28th May 2025
56AQI
56AQI
29th May 2025
56AQI
56AQI
30th May 2025
46AQI
46AQI
31st May 2025
59AQI
59AQI
1st June 2025
58AQI
58AQI
2nd June 2025
53AQI
53AQI
3rd June 2025
56AQI
56AQI
4th June 2025
45AQI
45AQI
5th June 2025
54AQI
54AQI
6th June 2025
55AQI
55AQI
7th June 2025
50AQI
50AQI
8th June 2025
43AQI
43AQI
9th June 2025
46AQI
46AQI
10th June 2025
40AQI
40AQI
11th June 2025
36AQI
36AQI
12th June 2025
38AQI
38AQI
13th June 2025
41AQI
41AQI
14th June 2025
46AQI
46AQI
15th June 2025
44AQI
44AQI
16th June 2025
46AQI
46AQI
17th June 2025
45AQI
45AQI
18th June 2025
42AQI
42AQI
19th June 2025
39AQI
39AQI
20th June 2025
36AQI
36AQI
21st June 2025
34AQI
34AQI
22nd June 2025
31AQI
31AQI
23rd June 2025
31AQI
31AQI
24th June 2025
30AQI
30AQI
25th June 2025
31AQI
31AQI
26th June 2025
30AQI
30AQI
27th June 2025
31AQI
31AQI
28th June 2025
30AQI
30AQI
29th June 2025
31AQI
31AQI
30th June 2025
30AQI
30AQI
1st July 2025
28AQI
28AQI
2nd July 2025
30AQI
30AQI
3rd July 2025
38AQI
38AQI
4th July 2025
43AQI
43AQI
5th July 2025
46AQI
46AQI
6th July 2025
48AQI
48AQI
7th July 2025
53AQI
53AQI
8th July 2025
41AQI
41AQI
9th July 2025
47AQI
47AQI
10th July 2025
47AQI
47AQI
11th July 2025
48AQI
48AQI
12th July 2025
47AQI
47AQI
13th July 2025
51AQI
51AQI
14th July 2025
50AQI
50AQI
15th July 2025
50AQI
50AQI
16th July 2025
50AQI
50AQI
17th July 2025
54AQI
54AQI
18th July 2025
55AQI
55AQI
19th July 2025
59AQI
59AQI
20th July 2025
40AQI
40AQI
21st July 2025
44AQI
44AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
40AQI
40AQI
24th July 2025
53AQI
53AQI
25th July 2025
59AQI
59AQI
26th July 2025
61AQI
61AQI
27th July 2025
54AQI
54AQI
28th July 2025
57AQI
57AQI
29th July 2025
55AQI
55AQI
30th July 2025
59AQI
59AQI
31st July 2025
56AQI
56AQI
1st August 2025
61AQI
61AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
56AQI
56AQI
4th August 2025
57AQI
57AQI
5th August 2025
55AQI
55AQI
6th August 2025
52AQI
52AQI
7th August 2025
53AQI
53AQI
8th August 2025
56AQI
56AQI
9th August 2025
54AQI
54AQI
10th August 2025
44AQI
44AQI
11th August 2025
46AQI
46AQI
12th August 2025
51AQI
51AQI
13th August 2025
54AQI
54AQI
14th August 2025
50AQI
50AQI
15th August 2025
45AQI
45AQI
16th August 2025
45AQI
45AQI
17th August 2025
43AQI
43AQI
18th August 2025
40AQI
40AQI
19th August 2025
41AQI
41AQI
20th August 2025
41AQI
41AQI
21st August 2025
42AQI
42AQI
22nd August 2025
46AQI
46AQI
23rd August 2025
48AQI
48AQI
24th August 2025
49AQI
49AQI
25th August 2025
48AQI
48AQI
26th August 2025
53AQI
53AQI
27th August 2025
52AQI
52AQI
28th August 2025
55AQI
55AQI
29th August 2025
50AQI
50AQI
30th August 2025
52AQI
52AQI
31st August 2025
51AQI
51AQI
1st September 2025
50AQI
50AQI
2nd September 2025
56AQI
56AQI
3rd September 2025
48AQI
48AQI
4th September 2025
43AQI
43AQI
5th September 2025
45AQI
45AQI
6th September 2025
51AQI
51AQI
7th September 2025
44AQI
44AQI
8th September 2025
40AQI
40AQI
9th September 2025
43AQI
43AQI
10th September 2025
43AQI
43AQI
11th September 2025
45AQI
45AQI
12th September 2025
42AQI
42AQI
13th September 2025
38AQI
38AQI
14th September 2025
38AQI
38AQI
15th September 2025
37AQI
37AQI
16th September 2025
39AQI
39AQI
17th September 2025
45AQI
45AQI
18th September 2025
42AQI
42AQI
19th September 2025
39AQI
39AQI
20th September 2025
46AQI
46AQI
21st September 2025
36AQI
36AQI
22nd September 2025
49AQI
49AQI
23rd September 2025
51AQI
51AQI
24th September 2025
36AQI
36AQI
25th September 2025
40AQI
40AQI
26th September 2025
43AQI
43AQI
27th September 2025
34AQI
34AQI
28th September 2025
40AQI
40AQI
29th September 2025
38AQI
38AQI
30th September 2025
48AQI
48AQI
1st October 2025
52AQI
52AQI
2nd October 2025
50AQI
50AQI
3rd October 2025
48AQI
48AQI
4th October 2025
62AQI
62AQI
5th October 2025
48AQI
48AQI
6th October 2025
48AQI
48AQI
7th October 2025
60AQI
60AQI
8th October 2025
64AQI
64AQI
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
84AQI
70AQI
62AQI
71AQI
56AQI
41AQI
49AQI
50AQI
43AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202558AQI
26
5
2
24
2
6
25
27
3
10
21
25
5
18
13
15
16
27
3
4
4
107
164
10
Highest AQI recorded in
January84AQI
Lowest AQI recorded in
June41AQI
202458AQI
4
21
6
5
24
2
29
10
20
12
19
28
1
29
2
22
9
17
13
4
27
7
23
23
8
140
211
14
Highest AQI recorded in
December90AQI
Lowest AQI recorded in
July30AQI
202358AQI
5
25
1
4
22
2
5
24
2
3
27
8
22
1
26
4
25
6
23
8
22
8
7
24
6
23
5
23
3
139
216
9
Highest AQI recorded in
December75AQI
Lowest AQI recorded in
July41AQI
202257AQI
6
22
3
10
10
1
16
13
2
7
23
19
12
30
21
1
1
3
20
6
4
27
9
21
7
22
2
132
171
15
Highest AQI recorded in
August112AQI
Lowest AQI recorded in
July33AQI
202158AQI
23
7
1
4
24
4
26
1
7
22
1
23
8
25
4
1
24
7
24
7
16
14
13
18
4
25
1
3
22
6
147
200
17
1
Highest AQI recorded in
January86AQI
Lowest AQI recorded in
July40AQI
202051AQI
3
10
9
12
13
5
30
31
23
8
17
11
2
2
29
5
23
2
24
7
133
122
11
Highest AQI recorded in
December84AQI
Lowest AQI recorded in
July24AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
58AQILeast Polluted Year Recorded
2020(Avg.)
51AQITsuen Wan's annual 2025 AQI (58) shows an average percentage change of 3.3% (worsened AQI) compared to previous years: 2020 (51), 2021 (58), 2022 (57), 2023 (58), 2024 (58).
