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+
August Air Quality Analysis
Tsuen Wan, Hong Kong, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2022
112AQILowest AQI recorded on
22nd Aug 2021
25AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 57 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Tsuen Wan, Hong Kong, China
AQI
Day
Night
.
5 AM5th Aug 2025
7 PM
4 AM6th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
11PM5th Aug
64AQI
Avg. Lowest Time
12PM5th Aug
41AQI
In the last 24 hours,
Tsuen Wan's AQI reached its highest point of 64 at 11 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Tsuen Wan, Hong Kong, China
JulAug
07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
7th Jul 2025425 AMAQI
7th Jul 2025426 AMAQI
7th Jul 2025427 AMAQI
7th Jul 2025618 AMAQI
7th Jul 2025629 AMAQI
7th Jul 20257010 AMAQI
7th Jul 20257511 AMAQI
7th Jul 20256712 PMAQI
7th Jul 2025681 PMAQI
7th Jul 2025742 PMAQI
7th Jul 2025733 PMAQI
7th Jul 2025724 PMAQI
7th Jul 2025665 PMAQI
7th Jul 2025646 PMAQI
7th Jul 2025577 PMAQI
7th Jul 2025528 PMAQI
7th Jul 2025519 PMAQI
7th Jul 20254510 PMAQI
7th Jul 20254211 PMAQI
8th Jul 20254012 AMAQI
8th Jul 2025411 AMAQI
8th Jul 2025412 AMAQI
8th Jul 2025443 AMAQI
8th Jul 2025494 AMAQI
30°C28/31°C
8th Jul 2025485 AMAQI
8th Jul 2025496 AMAQI
8th Jul 2025497 AMAQI
8th Jul 2025348 AMAQI
8th Jul 2025319 AMAQI
8th Jul 20252910 AMAQI
8th Jul 20253511 AMAQI
8th Jul 20253812 PMAQI
8th Jul 2025371 PMAQI
8th Jul 2025332 PMAQI
8th Jul 2025353 PMAQI
8th Jul 2025344 PMAQI
8th Jul 2025385 PMAQI
8th Jul 2025376 PMAQI
8th Jul 2025397 PMAQI
8th Jul 2025438 PMAQI
8th Jul 2025409 PMAQI
8th Jul 20254010 PMAQI
8th Jul 20254211 PMAQI
9th Jul 20254212 AMAQI
9th Jul 2025451 AMAQI
9th Jul 2025462 AMAQI
9th Jul 2025463 AMAQI
9th Jul 2025444 AMAQI
29°C29/31°C
9th Jul 2025445 AMAQI
9th Jul 2025436 AMAQI
9th Jul 2025447 AMAQI
9th Jul 2025408 AMAQI
9th Jul 2025409 AMAQI
9th Jul 20254310 AMAQI
9th Jul 20255011 AMAQI
9th Jul 20254712 PMAQI
9th Jul 2025481 PMAQI
9th Jul 2025552 PMAQI
9th Jul 2025563 PMAQI
9th Jul 2025554 PMAQI
9th Jul 2025535 PMAQI
9th Jul 2025516 PMAQI
9th Jul 2025517 PMAQI
9th Jul 2025528 PMAQI
9th Jul 2025519 PMAQI
9th Jul 20254710 PMAQI
9th Jul 20254511 PMAQI
10th Jul 20254512 AMAQI
10th Jul 2025441 AMAQI
10th Jul 2025452 AMAQI
10th Jul 2025463 AMAQI
10th Jul 2025474 AMAQI
30°C28/31°C
10th Jul 2025465 AMAQI
10th Jul 2025466 AMAQI
10th Jul 2025457 AMAQI
10th Jul 2025338 AMAQI
10th Jul 2025379 AMAQI
10th Jul 20254710 AMAQI
10th Jul 20254911 AMAQI
10th Jul 20254612 PMAQI
10th Jul 2025561 PMAQI
10th Jul 2025542 PMAQI
10th Jul 2025543 PMAQI
10th Jul 2025594 PMAQI
10th Jul 2025585 PMAQI
10th Jul 2025476 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025448 PMAQI
10th Jul 2025479 PMAQI
10th Jul 20254610 PMAQI
10th Jul 20254411 PMAQI
11th Jul 20254312 AMAQI
11th Jul 2025461 AMAQI
11th Jul 2025462 AMAQI
11th Jul 2025443 AMAQI
11th Jul 2025464 AMAQI
28°C27/30°C
11th Jul 2025475 AMAQI
11th Jul 2025496 AMAQI
11th Jul 2025497 AMAQI
11th Jul 2025428 AMAQI
11th Jul 2025449 AMAQI
11th Jul 20254210 AMAQI
11th Jul 20255011 AMAQI
11th Jul 20254912 PMAQI
11th Jul 2025571 PMAQI
11th Jul 2025582 PMAQI
11th Jul 2025533 PMAQI
11th Jul 2025484 PMAQI
11th Jul 2025455 PMAQI
11th Jul 2025446 PMAQI
11th Jul 2025507 PMAQI
11th Jul 2025518 PMAQI
11th Jul 2025509 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255211 PMAQI
12th Jul 20255112 AMAQI
12th Jul 2025481 AMAQI
12th Jul 2025482 AMAQI
12th Jul 2025473 AMAQI
12th Jul 2025484 AMAQI
27°C26/28°C
12th Jul 2025485 AMAQI
12th Jul 2025486 AMAQI
12th Jul 2025487 AMAQI
12th Jul 2025388 AMAQI
12th Jul 2025389 AMAQI
12th Jul 20254310 AMAQI
12th Jul 20254611 AMAQI
12th Jul 20254512 PMAQI
12th Jul 2025461 PMAQI
12th Jul 2025512 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025454 PMAQI
12th Jul 2025425 PMAQI
12th Jul 2025456 PMAQI
12th Jul 2025467 PMAQI
12th Jul 2025458 PMAQI
12th Jul 2025469 PMAQI
12th Jul 20254710 PMAQI
12th Jul 20254911 PMAQI
13th Jul 20254712 AMAQI
13th Jul 2025501 AMAQI
13th Jul 2025502 AMAQI
13th Jul 2025493 AMAQI
13th Jul 2025484 AMAQI
29°C27/30°C
13th Jul 2025485 AMAQI
13th Jul 2025486 AMAQI
13th Jul 2025497 AMAQI
13th Jul 2025488 AMAQI
13th Jul 2025519 AMAQI
13th Jul 20255110 AMAQI
13th Jul 20255411 AMAQI
13th Jul 20255412 PMAQI
13th Jul 2025531 PMAQI
13th Jul 2025532 PMAQI
13th Jul 2025543 PMAQI
13th Jul 2025554 PMAQI
13th Jul 2025515 PMAQI
13th Jul 2025496 PMAQI
13th Jul 2025507 PMAQI
13th Jul 2025528 PMAQI
13th Jul 2025559 PMAQI
13th Jul 20255010 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255312 AMAQI
14th Jul 2025511 AMAQI
14th Jul 2025492 AMAQI
14th Jul 2025513 AMAQI
14th Jul 2025504 AMAQI
29°C28/30°C
14th Jul 2025505 AMAQI
14th Jul 2025516 AMAQI
14th Jul 2025517 AMAQI
14th Jul 2025478 AMAQI
14th Jul 2025479 AMAQI
14th Jul 20254510 AMAQI
14th Jul 20255011 AMAQI
14th Jul 20255312 PMAQI
14th Jul 2025541 PMAQI
14th Jul 2025522 PMAQI
14th Jul 2025503 PMAQI
14th Jul 2025474 PMAQI
14th Jul 2025445 PMAQI
14th Jul 2025436 PMAQI
14th Jul 2025447 PMAQI
14th Jul 2025508 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255212 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025522 AMAQI
15th Jul 2025533 AMAQI
15th Jul 2025524 AMAQI
29°C28/31°C
15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025458 AMAQI
15th Jul 2025489 AMAQI
15th Jul 20255210 AMAQI
15th Jul 20255011 AMAQI
15th Jul 20255012 PMAQI
15th Jul 2025511 PMAQI
15th Jul 2025502 PMAQI
15th Jul 2025483 PMAQI
15th Jul 2025474 PMAQI
15th Jul 2025485 PMAQI
15th Jul 2025476 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025508 PMAQI
15th Jul 2025509 PMAQI
15th Jul 20255110 PMAQI
15th Jul 20255011 PMAQI
16th Jul 20254912 AMAQI
16th Jul 2025521 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI
16th Jul 2025524 AMAQI
29°C28/30°C
16th Jul 2025525 AMAQI
16th Jul 2025526 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025448 AMAQI
16th Jul 2025479 AMAQI
16th Jul 20254610 AMAQI
16th Jul 20254811 AMAQI
16th Jul 20255012 PMAQI
16th Jul 2025491 PMAQI
16th Jul 2025482 PMAQI
16th Jul 2025483 PMAQI
16th Jul 2025484 PMAQI
16th Jul 2025485 PMAQI
16th Jul 2025486 PMAQI
16th Jul 2025487 PMAQI
16th Jul 2025528 PMAQI
16th Jul 2025519 PMAQI
16th Jul 20255110 PMAQI
16th Jul 20255111 PMAQI
17th Jul 20254912 AMAQI
17th Jul 2025511 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025523 AMAQI
17th Jul 2025564 AMAQI
29°C28/31°C
17th Jul 2025525 AMAQI
17th Jul 2025526 AMAQI
17th Jul 2025527 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025489 AMAQI
17th Jul 20255110 AMAQI
17th Jul 20255311 AMAQI
17th Jul 20255112 PMAQI
17th Jul 2025531 PMAQI
17th Jul 2025542 PMAQI
17th Jul 2025563 PMAQI
17th Jul 2025554 PMAQI
17th Jul 2025565 PMAQI
17th Jul 2025586 PMAQI
17th Jul 2025617 PMAQI
17th Jul 2025598 PMAQI
17th Jul 2025609 PMAQI
17th Jul 20255910 PMAQI
17th Jul 20255711 PMAQI
18th Jul 20255712 AMAQI
18th Jul 2025531 AMAQI
18th Jul 2025532 AMAQI
18th Jul 2025523 AMAQI
18th Jul 2025524 AMAQI
30°C29/31°C
18th Jul 2025525 AMAQI
18th Jul 2025526 AMAQI
18th Jul 2025527 AMAQI
18th Jul 2025568 AMAQI
18th Jul 2025579 AMAQI
18th Jul 20256010 AMAQI
18th Jul 20256411 AMAQI
18th Jul 20256612 PMAQI
18th Jul 2025631 PMAQI
18th Jul 2025572 PMAQI
18th Jul 2025543 PMAQI
18th Jul 2025504 PMAQI
18th Jul 2025555 PMAQI
18th Jul 2025546 PMAQI
18th Jul 2025527 PMAQI
18th Jul 2025538 PMAQI
18th Jul 2025539 PMAQI
18th Jul 20255410 PMAQI
18th Jul 20255511 PMAQI
19th Jul 20255412 AMAQI
19th Jul 2025541 AMAQI
19th Jul 2025552 AMAQI
19th Jul 2025543 AMAQI
19th Jul 2025554 AMAQI
30°C29/32°C
19th Jul 2025555 AMAQI
19th Jul 2025556 AMAQI
19th Jul 2025557 AMAQI
19th Jul 2025708 AMAQI
19th Jul 2025749 AMAQI
19th Jul 20257310 AMAQI
19th Jul 20256911 AMAQI
19th Jul 20256612 PMAQI
19th Jul 2025691 PMAQI
19th Jul 2025672 PMAQI
19th Jul 2025713 PMAQI
19th Jul 2025704 PMAQI
19th Jul 2025665 PMAQI
19th Jul 2025606 PMAQI
19th Jul 2025567 PMAQI
19th Jul 2025558 PMAQI
19th Jul 2025539 PMAQI
19th Jul 20255210 PMAQI
19th Jul 20255111 PMAQI
20th Jul 20254912 AMAQI
20th Jul 2025541 AMAQI
20th Jul 2025552 AMAQI
20th Jul 2025553 AMAQI
20th Jul 2025574 AMAQI
29°C27/32°C
20th Jul 2025575 AMAQI
20th Jul 2025586 AMAQI
20th Jul 2025587 AMAQI
20th Jul 2025398 AMAQI
20th Jul 2025179 AMAQI
20th Jul 20251810 AMAQI
20th Jul 20251711 AMAQI
20th Jul 20252412 PMAQI
20th Jul 2025251 PMAQI
20th Jul 2025252 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025264 PMAQI
20th Jul 2025255 PMAQI
20th Jul 2025216 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025438 PMAQI
20th Jul 2025439 PMAQI
20th Jul 20254510 PMAQI
20th Jul 20254611 PMAQI
21st Jul 20254412 AMAQI
21st Jul 2025551 AMAQI
21st Jul 2025552 AMAQI
21st Jul 2025543 AMAQI
21st Jul 2025524 AMAQI
28°C27/29°C
21st Jul 2025525 AMAQI
21st Jul 2025526 AMAQI
21st Jul 2025527 AMAQI
21st Jul 2025308 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252910 AMAQI
21st Jul 20253311 AMAQI
21st Jul 20253412 PMAQI
21st Jul 2025361 PMAQI
21st Jul 2025382 PMAQI
21st Jul 2025433 PMAQI
21st Jul 2025414 PMAQI
21st Jul 2025435 PMAQI
21st Jul 2025426 PMAQI
21st Jul 2025367 PMAQI
21st Jul 2025448 PMAQI
21st Jul 2025469 PMAQI
21st Jul 20254710 PMAQI
21st Jul 20254411 PMAQI
22nd Jul 20254512 AMAQI
22nd Jul 2025521 AMAQI
22nd Jul 2025522 AMAQI
22nd Jul 2025513 AMAQI
22nd Jul 2025494 AMAQI
28°C28/29°C
22nd Jul 2025495 AMAQI
22nd Jul 2025486 AMAQI
22nd Jul 2025497 AMAQI
22nd Jul 2025298 AMAQI
22nd Jul 2025249 AMAQI
22nd Jul 20252710 AMAQI
22nd Jul 20253111 AMAQI
22nd Jul 20254012 PMAQI
22nd Jul 2025431 PMAQI
22nd Jul 2025442 PMAQI
22nd Jul 2025483 PMAQI
22nd Jul 2025464 PMAQI
22nd Jul 2025375 PMAQI
22nd Jul 2025366 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025458 PMAQI
22nd Jul 2025449 PMAQI
22nd Jul 20254310 PMAQI
22nd Jul 20254111 PMAQI
23rd Jul 20254112 AMAQI
23rd Jul 2025491 AMAQI
23rd Jul 2025512 AMAQI
23rd Jul 2025493 AMAQI
23rd Jul 2025484 AMAQI
28°C27/29°C
23rd Jul 2025485 AMAQI
23rd Jul 2025486 AMAQI
23rd Jul 2025477 AMAQI
23rd Jul 2025288 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20253010 AMAQI
23rd Jul 20253511 AMAQI
23rd Jul 20253512 PMAQI
23rd Jul 2025331 PMAQI
23rd Jul 2025352 PMAQI
23rd Jul 2025373 PMAQI
23rd Jul 2025344 PMAQI
23rd Jul 2025315 PMAQI
23rd Jul 2025276 PMAQI
23rd Jul 2025327 PMAQI
23rd Jul 2025398 PMAQI
23rd Jul 2025439 PMAQI
23rd Jul 20254310 PMAQI
23rd Jul 20254411 PMAQI
24th Jul 20254412 AMAQI
24th Jul 2025461 AMAQI
24th Jul 2025462 AMAQI
24th Jul 2025453 AMAQI
24th Jul 2025444 AMAQI
28°C27/29°C
24th Jul 2025435 AMAQI
24th Jul 2025436 AMAQI
24th Jul 2025437 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025499 AMAQI
24th Jul 20255410 AMAQI
24th Jul 20255611 AMAQI
24th Jul 20255712 PMAQI
24th Jul 2025621 PMAQI
24th Jul 2025652 PMAQI
24th Jul 2025723 PMAQI
24th Jul 2025754 PMAQI
24th Jul 2025715 PMAQI
24th Jul 2025706 PMAQI
24th Jul 2025637 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025549 PMAQI
24th Jul 20255210 PMAQI
24th Jul 20255411 PMAQI
25th Jul 20255212 AMAQI
25th Jul 2025461 AMAQI
25th Jul 2025462 AMAQI
25th Jul 2025483 AMAQI
25th Jul 2025494 AMAQI
29°C27/30°C
25th Jul 2025485 AMAQI
25th Jul 2025486 AMAQI
25th Jul 2025497 AMAQI
25th Jul 2025518 AMAQI
25th Jul 2025449 AMAQI
25th Jul 20254410 AMAQI
25th Jul 20255211 AMAQI
25th Jul 20256012 PMAQI
25th Jul 2025711 PMAQI
25th Jul 2025892 PMAQI
25th Jul 2025963 PMAQI
25th Jul 2025974 PMAQI
25th Jul 2025865 PMAQI
25th Jul 2025856 PMAQI
25th Jul 2025787 PMAQI
25th Jul 2025618 PMAQI
25th Jul 2025579 PMAQI
25th Jul 20254810 PMAQI
25th Jul 20254611 PMAQI
26th Jul 20254812 AMAQI
26th Jul 2025491 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025544 AMAQI
29°C28/31°C
26th Jul 2025545 AMAQI
26th Jul 2025536 AMAQI
26th Jul 2025537 AMAQI
26th Jul 2025578 AMAQI
26th Jul 2025599 AMAQI
26th Jul 20255810 AMAQI
26th Jul 20256211 AMAQI
26th Jul 20256612 PMAQI
26th Jul 2025681 PMAQI
26th Jul 2025772 PMAQI
26th Jul 2025763 PMAQI
26th Jul 2025824 PMAQI
26th Jul 2025805 PMAQI
26th Jul 2025776 PMAQI
26th Jul 2025687 PMAQI
26th Jul 2025608 PMAQI
26th Jul 2025629 PMAQI
26th Jul 20256110 PMAQI
26th Jul 20256011 PMAQI
27th Jul 20255812 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025522 AMAQI
27th Jul 2025533 AMAQI
27th Jul 2025544 AMAQI
29°C28/31°C
27th Jul 2025545 AMAQI
27th Jul 2025546 AMAQI
27th Jul 2025547 AMAQI
27th Jul 2025608 AMAQI
27th Jul 2025599 AMAQI
27th Jul 20255910 AMAQI
27th Jul 20255411 AMAQI
27th Jul 20255512 PMAQI
27th Jul 2025551 PMAQI
27th Jul 2025552 PMAQI
27th Jul 2025553 PMAQI
27th Jul 2025574 PMAQI
27th Jul 2025575 PMAQI
27th Jul 2025496 PMAQI
27th Jul 2025507 PMAQI
27th Jul 2025528 PMAQI
27th Jul 2025539 PMAQI
27th Jul 20255210 PMAQI
27th Jul 20255011 PMAQI
28th Jul 20255112 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025552 AMAQI
28th Jul 2025553 AMAQI
28th Jul 2025554 AMAQI
29°C28/30°C
28th Jul 2025565 AMAQI
28th Jul 2025566 AMAQI
28th Jul 2025557 AMAQI
28th Jul 2025388 AMAQI
28th Jul 2025319 AMAQI
28th Jul 20253810 AMAQI
28th Jul 20255011 AMAQI
28th Jul 20255612 PMAQI
28th Jul 2025631 PMAQI
28th Jul 2025652 PMAQI
28th Jul 2025703 PMAQI
28th Jul 2025734 PMAQI
28th Jul 2025725 PMAQI
28th Jul 2025696 PMAQI
28th Jul 2025667 PMAQI
28th Jul 2025628 PMAQI
28th Jul 2025619 PMAQI
28th Jul 20256010 PMAQI
28th Jul 20255811 PMAQI
29th Jul 20255512 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025542 AMAQI
29th Jul 2025543 AMAQI
29th Jul 2025554 AMAQI
29°C28/30°C
29th Jul 2025545 AMAQI
29th Jul 2025546 AMAQI
29th Jul 2025547 AMAQI
29th Jul 2025578 AMAQI
29th Jul 2025599 AMAQI
29th Jul 20254710 AMAQI
29th Jul 20255511 AMAQI
29th Jul 20255712 PMAQI
29th Jul 2025561 PMAQI
29th Jul 2025552 PMAQI
29th Jul 2025503 PMAQI
29th Jul 2025594 PMAQI
29th Jul 2025585 PMAQI
29th Jul 2025576 PMAQI
29th Jul 2025557 PMAQI
29th Jul 2025558 PMAQI
29th Jul 2025559 PMAQI
29th Jul 20255510 PMAQI
29th Jul 20255611 PMAQI
30th Jul 20255412 AMAQI
30th Jul 2025541 AMAQI
30th Jul 2025552 AMAQI
30th Jul 2025553 AMAQI
30th Jul 2025554 AMAQI
29°C28/31°C
30th Jul 2025555 AMAQI
30th Jul 2025556 AMAQI
30th Jul 2025557 AMAQI
30th Jul 2025588 AMAQI
30th Jul 2025629 AMAQI
30th Jul 20256610 AMAQI
30th Jul 20256811 AMAQI
30th Jul 20257012 PMAQI
30th Jul 2025711 PMAQI
30th Jul 2025712 PMAQI
30th Jul 2025753 PMAQI
30th Jul 2025684 PMAQI
30th Jul 2025615 PMAQI
30th Jul 2025566 PMAQI
30th Jul 2025587 PMAQI
30th Jul 2025578 PMAQI
30th Jul 2025569 PMAQI
30th Jul 20256010 PMAQI
30th Jul 20255611 PMAQI
31st Jul 20255512 AMAQI
31st Jul 2025551 AMAQI
31st Jul 2025552 AMAQI
31st Jul 2025553 AMAQI
31st Jul 2025554 AMAQI
29°C29/31°C
31st Jul 2025555 AMAQI
31st Jul 2025556 AMAQI
31st Jul 2025557 AMAQI
31st Jul 2025558 AMAQI
31st Jul 2025559 AMAQI
31st Jul 20254810 AMAQI
31st Jul 20254811 AMAQI
31st Jul 20255012 PMAQI
31st Jul 2025501 PMAQI
31st Jul 2025502 PMAQI
31st Jul 2025523 PMAQI
31st Jul 2025484 PMAQI
31st Jul 2025485 PMAQI
31st Jul 2025476 PMAQI
31st Jul 2025597 PMAQI
31st Jul 2025688 PMAQI
31st Jul 2025769 PMAQI
31st Jul 20257010 PMAQI
31st Jul 20256711 PMAQI
1st Aug 20257212 AMAQI
1st Aug 2025631 AMAQI
1st Aug 2025602 AMAQI
1st Aug 2025603 AMAQI
1st Aug 2025614 AMAQI
29°C28/30°C
1st Aug 2025635 AMAQI
1st Aug 2025636 AMAQI
1st Aug 2025647 AMAQI
1st Aug 2025608 AMAQI
1st Aug 2025669 AMAQI
1st Aug 20256310 AMAQI
1st Aug 20256211 AMAQI
1st Aug 20256412 PMAQI
1st Aug 2025621 PMAQI
1st Aug 2025592 PMAQI
1st Aug 2025583 PMAQI
1st Aug 2025664 PMAQI
1st Aug 2025605 PMAQI
1st Aug 2025646 PMAQI
1st Aug 2025607 PMAQI
1st Aug 2025608 PMAQI
1st Aug 2025619 PMAQI
1st Aug 20256010 PMAQI
1st Aug 20255911 PMAQI
2nd Aug 20256012 AMAQI
2nd Aug 2025581 AMAQI
2nd Aug 2025582 AMAQI
2nd Aug 2025613 AMAQI
2nd Aug 2025604 AMAQI
29°C28/30°C
2nd Aug 2025635 AMAQI
2nd Aug 2025626 AMAQI
2nd Aug 2025637 AMAQI
2nd Aug 2025548 AMAQI
2nd Aug 2025569 AMAQI
2nd Aug 20255510 AMAQI
2nd Aug 20255511 AMAQI
2nd Aug 20255112 PMAQI
2nd Aug 2025531 PMAQI
2nd Aug 2025472 PMAQI
2nd Aug 2025473 PMAQI
2nd Aug 2025414 PMAQI
2nd Aug 2025485 PMAQI
2nd Aug 2025496 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025588 PMAQI
2nd Aug 2025589 PMAQI
2nd Aug 20255910 PMAQI
2nd Aug 20255611 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025571 AMAQI
3rd Aug 2025582 AMAQI
3rd Aug 2025573 AMAQI
3rd Aug 2025574 AMAQI
28°C28/29°C
3rd Aug 2025565 AMAQI
3rd Aug 2025566 AMAQI
3rd Aug 2025597 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025549 AMAQI
3rd Aug 20255710 AMAQI
3rd Aug 20255611 AMAQI
3rd Aug 20255312 PMAQI
3rd Aug 2025441 PMAQI
3rd Aug 2025572 PMAQI
3rd Aug 2025533 PMAQI
3rd Aug 2025494 PMAQI
3rd Aug 2025535 PMAQI
3rd Aug 2025536 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025588 PMAQI
3rd Aug 2025599 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20256011 PMAQI
4th Aug 20256012 AMAQI
4th Aug 2025581 AMAQI
4th Aug 2025592 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025564 AMAQI
28°C27/29°C
4th Aug 2025565 AMAQI
4th Aug 2025586 AMAQI
4th Aug 2025567 AMAQI
4th Aug 2025598 AMAQI
4th Aug 2025579 AMAQI
4th Aug 20254710 AMAQI
4th Aug 20255211 AMAQI
4th Aug 20255312 PMAQI
4th Aug 2025541 PMAQI
4th Aug 2025572 PMAQI
4th Aug 2025533 PMAQI
4th Aug 2025624 PMAQI
4th Aug 2025605 PMAQI
4th Aug 2025596 PMAQI
4th Aug 2025577 PMAQI
4th Aug 2025608 PMAQI
4th Aug 2025599 PMAQI
4th Aug 20255910 PMAQI
4th Aug 20256011 PMAQI
5th Aug 20255712 AMAQI
5th Aug 2025581 AMAQI
5th Aug 2025592 AMAQI
5th Aug 2025583 AMAQI
5th Aug 2025594 AMAQI
28°C27/28°C
5th Aug 2025565 AMAQI
5th Aug 2025576 AMAQI
5th Aug 2025587 AMAQI
5th Aug 2025488 AMAQI
5th Aug 2025489 AMAQI
5th Aug 20254910 AMAQI
5th Aug 20254611 AMAQI
5th Aug 20254112 PMAQI
5th Aug 2025501 PMAQI
5th Aug 2025452 PMAQI
5th Aug 2025513 PMAQI
5th Aug 2025474 PMAQI
5th Aug 2025585 PMAQI
5th Aug 2025576 PMAQI
5th Aug 2025597 PMAQI
5th Aug 2025618 PMAQI
5th Aug 2025599 PMAQI
5th Aug 20255910 PMAQI
5th Aug 20256411 PMAQI
6th Aug 20256012 AMAQI
6th Aug 2025621 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 7 PM
53AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
8 AM - 10 AM
48AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 7 PM (Avg. 53), while the lowest AQI was between 8 AM to 10 AM (Avg. 48).
Night time
Avg. Highest Time
12 AM - 11 PM
52AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
52AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 52), while the lowest AQI was between 12 AM to 11 PM (Avg. 52).
2025 Days Vs Air Quality
Tsuen Wan, Hong Kong, China
2025
28%
61
67%
145
5%
10
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
61 DaysModerate
145 DaysPoor
10 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 28%
Health Risk Level:
Very high
In 2025, 28% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
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.
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
84AQI
70AQI
62AQI
71AQI
56AQI
41AQI
49AQI
58AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202562AQI
26
5
2
24
2
6
25
27
3
10
21
25
5
18
13
4
61
145
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
2025(Avg.)
62AQILeast Polluted Year Recorded
2020(Avg.)
51AQITsuen Wan's annual 2025 AQI (62) shows an average percentage change of 9.5% (worsened AQI) compared to previous years: 2020 (51), 2021 (58), 2022 (57), 2023 (58), 2024 (58).
