Annan District, Tainan, Taiwan 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
Annan District, Tainan, Taiwan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Aug 2021
60AQILowest AQI recorded on
21st Aug 2023
17AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 49 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Annan District, Tainan, Taiwan
AQI
Day
Night
.
5 AM2nd Aug 2025
6 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
10PM2nd Aug
53AQI
Avg. Lowest Time
8AM2nd Aug
26AQI
In the last 24 hours,
Annan District's AQI reached its highest point of 53 at 10 PM during the Night, while the lowest point, 26, was recorded at 8 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Annan District, Tainan, Taiwan
JulAug
04th - 05th05th - 06th06th - 07th07th - 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
Day
Night
4th Jul 2025355 AMAQI
4th Jul 2025356 AMAQI
4th Jul 2025357 AMAQI
4th Jul 2025408 AMAQI
4th Jul 2025409 AMAQI
4th Jul 20254010 AMAQI
4th Jul 20254411 AMAQI
4th Jul 20254112 PMAQI
4th Jul 2025421 PMAQI
4th Jul 2025382 PMAQI
4th Jul 2025373 PMAQI
4th Jul 2025394 PMAQI
4th Jul 2025425 PMAQI
4th Jul 2025386 PMAQI
4th Jul 2025367 PMAQI
4th Jul 2025388 PMAQI
4th Jul 2025389 PMAQI
4th Jul 20253810 PMAQI
4th Jul 20253811 PMAQI
5th Jul 20253812 AMAQI
5th Jul 2025361 AMAQI
5th Jul 2025362 AMAQI
5th Jul 2025373 AMAQI
5th Jul 2025394 AMAQI
30°C28/33°C
5th Jul 2025375 AMAQI
5th Jul 2025376 AMAQI
5th Jul 2025377 AMAQI
5th Jul 2025328 AMAQI
5th Jul 2025309 AMAQI
5th Jul 20252910 AMAQI
5th Jul 20253011 AMAQI
5th Jul 20253412 PMAQI
5th Jul 2025351 PMAQI
5th Jul 2025402 PMAQI
5th Jul 2025383 PMAQI
5th Jul 2025384 PMAQI
5th Jul 2025385 PMAQI
5th Jul 2025306 PMAQI
5th Jul 2025287 PMAQI
5th Jul 2025388 PMAQI
5th Jul 2025379 PMAQI
5th Jul 20253610 PMAQI
5th Jul 20253711 PMAQI
6th Jul 20253712 AMAQI
6th Jul 2025361 AMAQI
6th Jul 2025362 AMAQI
6th Jul 2025373 AMAQI
6th Jul 2025374 AMAQI
29°C26/33°C
6th Jul 2025385 AMAQI
6th Jul 2025376 AMAQI
6th Jul 2025367 AMAQI
6th Jul 2025288 AMAQI
6th Jul 2025219 AMAQI
6th Jul 20252110 AMAQI
6th Jul 20252811 AMAQI
6th Jul 20252812 PMAQI
6th Jul 2025281 PMAQI
6th Jul 2025252 PMAQI
6th Jul 2025253 PMAQI
6th Jul 2025244 PMAQI
6th Jul 2025245 PMAQI
6th Jul 2025246 PMAQI
6th Jul 2025287 PMAQI
6th Jul 2025368 PMAQI
6th Jul 2025369 PMAQI
6th Jul 20253710 PMAQI
6th Jul 20253611 PMAQI
7th Jul 20253612 AMAQI
7th Jul 2025371 AMAQI
7th Jul 2025372 AMAQI
7th Jul 2025363 AMAQI
7th Jul 2025344 AMAQI
25°C23/27°C
7th Jul 2025345 AMAQI
7th Jul 2025366 AMAQI
7th Jul 2025377 AMAQI
7th Jul 2025218 AMAQI
7th Jul 2025179 AMAQI
7th Jul 20251610 AMAQI
7th Jul 20251711 AMAQI
7th Jul 20252212 PMAQI
7th Jul 2025231 PMAQI
7th Jul 2025272 PMAQI
7th Jul 2025293 PMAQI
7th Jul 2025314 PMAQI
7th Jul 2025315 PMAQI
7th Jul 2025316 PMAQI
7th Jul 2025347 PMAQI
7th Jul 2025368 PMAQI
7th Jul 2025369 PMAQI
7th Jul 20253510 PMAQI
7th Jul 20253611 PMAQI
8th Jul 20253512 AMAQI
8th Jul 2025361 AMAQI
8th Jul 2025352 AMAQI
8th Jul 2025353 AMAQI
8th Jul 2025354 AMAQI
27°C24/29°C
8th Jul 2025345 AMAQI
8th Jul 2025346 AMAQI
8th Jul 2025357 AMAQI
8th Jul 2025368 AMAQI
8th Jul 2025489 AMAQI
8th Jul 20254810 AMAQI
8th Jul 20254911 AMAQI
8th Jul 20253912 PMAQI
8th Jul 2025401 PMAQI
8th Jul 2025362 PMAQI
8th Jul 2025363 PMAQI
8th Jul 2025384 PMAQI
8th Jul 2025445 PMAQI
8th Jul 2025436 PMAQI
8th Jul 2025397 PMAQI
8th Jul 2025348 PMAQI
8th Jul 2025349 PMAQI
8th Jul 20253510 PMAQI
8th Jul 20253411 PMAQI
9th Jul 20253512 AMAQI
9th Jul 2025351 AMAQI
9th Jul 2025352 AMAQI
9th Jul 2025353 AMAQI
9th Jul 2025354 AMAQI
29°C27/32°C
9th Jul 2025365 AMAQI
9th Jul 2025356 AMAQI
9th Jul 2025367 AMAQI
9th Jul 2025328 AMAQI
9th Jul 2025329 AMAQI
9th Jul 20253410 AMAQI
9th Jul 20253811 AMAQI
9th Jul 20254012 PMAQI
9th Jul 2025451 PMAQI
9th Jul 2025452 PMAQI
9th Jul 2025503 PMAQI
9th Jul 2025484 PMAQI
9th Jul 2025495 PMAQI
9th Jul 2025536 PMAQI
9th Jul 2025527 PMAQI
9th Jul 2025418 PMAQI
9th Jul 2025409 PMAQI
9th Jul 20253810 PMAQI
9th Jul 20253811 PMAQI
10th Jul 20253512 AMAQI
10th Jul 2025371 AMAQI
10th Jul 2025372 AMAQI
10th Jul 2025373 AMAQI
10th Jul 2025384 AMAQI
28°C27/30°C
10th Jul 2025385 AMAQI
10th Jul 2025376 AMAQI
10th Jul 2025387 AMAQI
10th Jul 2025268 AMAQI
10th Jul 2025239 AMAQI
10th Jul 20252510 AMAQI
10th Jul 20253111 AMAQI
10th Jul 20252912 PMAQI
10th Jul 2025291 PMAQI
10th Jul 2025322 PMAQI
10th Jul 2025323 PMAQI
10th Jul 2025344 PMAQI
10th Jul 2025355 PMAQI
10th Jul 2025346 PMAQI
10th Jul 2025327 PMAQI
10th Jul 2025348 PMAQI
10th Jul 2025339 PMAQI
10th Jul 20253510 PMAQI
10th Jul 20253611 PMAQI
11th Jul 20253612 AMAQI
11th Jul 2025381 AMAQI
11th Jul 2025382 AMAQI
11th Jul 2025393 AMAQI
11th Jul 2025364 AMAQI
25°C25/25°C
11th Jul 2025365 AMAQI
11th Jul 2025366 AMAQI
11th Jul 2025377 AMAQI
11th Jul 2025238 AMAQI
11th Jul 2025199 AMAQI
11th Jul 20252410 AMAQI
11th Jul 20254211 AMAQI
11th Jul 20255012 PMAQI
11th Jul 2025451 PMAQI
11th Jul 2025422 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025484 PMAQI
11th Jul 2025445 PMAQI
11th Jul 2025446 PMAQI
11th Jul 2025407 PMAQI
11th Jul 2025368 PMAQI
11th Jul 2025369 PMAQI
11th Jul 20253710 PMAQI
11th Jul 20253711 PMAQI
12th Jul 20253812 AMAQI
12th Jul 2025381 AMAQI
12th Jul 2025382 AMAQI
12th Jul 2025383 AMAQI
12th Jul 2025394 AMAQI
27°C25/29°C
12th Jul 2025385 AMAQI
12th Jul 2025386 AMAQI
12th Jul 2025387 AMAQI
12th Jul 2025498 AMAQI
12th Jul 2025549 AMAQI
12th Jul 20255510 AMAQI
12th Jul 20255511 AMAQI
12th Jul 20254712 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025402 PMAQI
12th Jul 2025403 PMAQI
12th Jul 2025444 PMAQI
12th Jul 2025395 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025387 PMAQI
12th Jul 2025408 PMAQI
12th Jul 2025399 PMAQI
12th Jul 20254010 PMAQI
12th Jul 20253811 PMAQI
13th Jul 20254012 AMAQI
13th Jul 2025391 AMAQI
13th Jul 2025392 AMAQI
13th Jul 2025413 AMAQI
13th Jul 2025424 AMAQI
29°C27/32°C
13th Jul 2025405 AMAQI
13th Jul 2025406 AMAQI
13th Jul 2025407 AMAQI
13th Jul 2025478 AMAQI
13th Jul 2025529 AMAQI
13th Jul 20254710 AMAQI
13th Jul 20254611 AMAQI
13th Jul 20254512 PMAQI
13th Jul 2025451 PMAQI
13th Jul 2025462 PMAQI
13th Jul 2025443 PMAQI
13th Jul 2025484 PMAQI
13th Jul 2025505 PMAQI
13th Jul 2025506 PMAQI
13th Jul 2025497 PMAQI
13th Jul 2025448 PMAQI
13th Jul 2025439 PMAQI
13th Jul 20254410 PMAQI
13th Jul 20254411 PMAQI
14th Jul 20254412 AMAQI
14th Jul 2025411 AMAQI
14th Jul 2025402 AMAQI
14th Jul 2025393 AMAQI
14th Jul 2025424 AMAQI
30°C28/32°C
14th Jul 2025425 AMAQI
14th Jul 2025426 AMAQI
14th Jul 2025427 AMAQI
14th Jul 2025538 AMAQI
14th Jul 2025579 AMAQI
14th Jul 20255510 AMAQI
14th Jul 20254811 AMAQI
14th Jul 20254712 PMAQI
14th Jul 2025501 PMAQI
14th Jul 2025462 PMAQI
14th Jul 2025463 PMAQI
14th Jul 2025494 PMAQI
14th Jul 2025485 PMAQI
14th Jul 2025466 PMAQI
14th Jul 2025487 PMAQI
14th Jul 2025448 PMAQI
14th Jul 2025449 PMAQI
14th Jul 20254610 PMAQI
14th Jul 20254711 PMAQI
15th Jul 20254412 AMAQI
15th Jul 2025441 AMAQI
15th Jul 2025442 AMAQI
15th Jul 2025433 AMAQI
15th Jul 2025464 AMAQI
30°C28/32°C
15th Jul 2025465 AMAQI
15th Jul 2025466 AMAQI
15th Jul 2025467 AMAQI
15th Jul 2025428 AMAQI
15th Jul 2025509 AMAQI
15th Jul 20255410 AMAQI
15th Jul 20255511 AMAQI
15th Jul 20255212 PMAQI
15th Jul 2025431 PMAQI
15th Jul 2025382 PMAQI
15th Jul 2025423 PMAQI
15th Jul 2025424 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025426 PMAQI
15th Jul 2025427 PMAQI
15th Jul 2025488 PMAQI
15th Jul 2025469 PMAQI
15th Jul 20254510 PMAQI
15th Jul 20254511 PMAQI
16th Jul 20254812 AMAQI
16th Jul 2025471 AMAQI
16th Jul 2025462 AMAQI
16th Jul 2025453 AMAQI
16th Jul 2025464 AMAQI
29°C28/31°C
16th Jul 2025465 AMAQI
16th Jul 2025446 AMAQI
16th Jul 2025457 AMAQI
16th Jul 2025478 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20253810 AMAQI
16th Jul 20254411 AMAQI
16th Jul 20254412 PMAQI
16th Jul 2025431 PMAQI
16th Jul 2025412 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025444 PMAQI
16th Jul 2025425 PMAQI
16th Jul 2025466 PMAQI
16th Jul 2025487 PMAQI
16th Jul 2025458 PMAQI
16th Jul 2025459 PMAQI
16th Jul 20254610 PMAQI
16th Jul 20254511 PMAQI
17th Jul 20254612 AMAQI
17th Jul 2025461 AMAQI
17th Jul 2025462 AMAQI
17th Jul 2025463 AMAQI
17th Jul 2025454 AMAQI
30°C28/33°C
17th Jul 2025465 AMAQI
17th Jul 2025466 AMAQI
17th Jul 2025467 AMAQI
17th Jul 2025498 AMAQI
17th Jul 2025529 AMAQI
17th Jul 20255210 AMAQI
17th Jul 20255111 AMAQI
17th Jul 20254412 PMAQI
17th Jul 2025431 PMAQI
17th Jul 2025422 PMAQI
17th Jul 2025413 PMAQI
17th Jul 2025404 PMAQI
17th Jul 2025425 PMAQI
17th Jul 2025436 PMAQI
17th Jul 2025427 PMAQI
17th Jul 2025468 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254610 PMAQI
17th Jul 20254511 PMAQI
18th Jul 20254512 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025472 AMAQI
18th Jul 2025463 AMAQI
18th Jul 2025474 AMAQI
30°C28/33°C
18th Jul 2025465 AMAQI
18th Jul 2025476 AMAQI
18th Jul 2025477 AMAQI
18th Jul 2025328 AMAQI
18th Jul 2025309 AMAQI
18th Jul 20253610 AMAQI
18th Jul 20253511 AMAQI
18th Jul 20254412 PMAQI
18th Jul 2025441 PMAQI
18th Jul 2025452 PMAQI
18th Jul 2025453 PMAQI
18th Jul 2025504 PMAQI
18th Jul 2025485 PMAQI
18th Jul 2025496 PMAQI
18th Jul 2025497 PMAQI
18th Jul 2025488 PMAQI
18th Jul 2025489 PMAQI
18th Jul 20254910 PMAQI
18th Jul 20254811 PMAQI
19th Jul 20254612 AMAQI
19th Jul 2025471 AMAQI
19th Jul 2025472 AMAQI
19th Jul 2025463 AMAQI
19th Jul 2025464 AMAQI
30°C28/34°C
19th Jul 2025445 AMAQI
19th Jul 2025456 AMAQI
19th Jul 2025457 AMAQI
19th Jul 2025558 AMAQI
19th Jul 2025569 AMAQI
19th Jul 20255310 AMAQI
19th Jul 20255711 AMAQI
19th Jul 20255112 PMAQI
19th Jul 2025431 PMAQI
19th Jul 2025422 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025354 PMAQI
19th Jul 2025405 PMAQI
19th Jul 2025406 PMAQI
19th Jul 2025387 PMAQI
19th Jul 2025438 PMAQI
19th Jul 2025439 PMAQI
19th Jul 20254310 PMAQI
19th Jul 20254211 PMAQI
20th Jul 20254212 AMAQI
20th Jul 2025461 AMAQI
20th Jul 2025462 AMAQI
20th Jul 2025463 AMAQI
20th Jul 2025474 AMAQI
28°C26/29°C
20th Jul 2025475 AMAQI
20th Jul 2025476 AMAQI
20th Jul 2025477 AMAQI
20th Jul 2025348 AMAQI
20th Jul 2025269 AMAQI
20th Jul 20251810 AMAQI
20th Jul 20251811 AMAQI
20th Jul 20252412 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025272 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025277 PMAQI
20th Jul 2025408 PMAQI
20th Jul 2025419 PMAQI
20th Jul 20254210 PMAQI
20th Jul 20254211 PMAQI
21st Jul 20254212 AMAQI
21st Jul 2025461 AMAQI
21st Jul 2025452 AMAQI
21st Jul 2025453 AMAQI
21st Jul 2025434 AMAQI
27°C25/30°C
21st Jul 2025445 AMAQI
21st Jul 2025436 AMAQI
21st Jul 2025437 AMAQI
21st Jul 2025268 AMAQI
21st Jul 2025219 AMAQI
21st Jul 20253210 AMAQI
21st Jul 20254111 AMAQI
21st Jul 20254112 PMAQI
21st Jul 2025361 PMAQI
21st Jul 2025322 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025344 PMAQI
21st Jul 2025365 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025337 PMAQI
21st Jul 2025418 PMAQI
21st Jul 2025419 PMAQI
21st Jul 20253910 PMAQI
21st Jul 20254311 PMAQI
22nd Jul 20254412 AMAQI
22nd Jul 2025441 AMAQI
22nd Jul 2025442 AMAQI
22nd Jul 2025433 AMAQI
22nd Jul 2025434 AMAQI
26°C25/27°C
22nd Jul 2025425 AMAQI
22nd Jul 2025436 AMAQI
22nd Jul 2025427 AMAQI
22nd Jul 2025268 AMAQI
22nd Jul 2025239 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20252811 AMAQI
22nd Jul 20253312 PMAQI
22nd Jul 2025341 PMAQI
22nd Jul 2025332 PMAQI
22nd Jul 2025363 PMAQI
22nd Jul 2025374 PMAQI
22nd Jul 2025345 PMAQI
22nd Jul 2025346 PMAQI
22nd Jul 2025407 PMAQI
22nd Jul 2025438 PMAQI
22nd Jul 2025439 PMAQI
22nd Jul 20254310 PMAQI
22nd Jul 20254211 PMAQI
23rd Jul 20254212 AMAQI
23rd Jul 2025441 AMAQI
23rd Jul 2025432 AMAQI
23rd Jul 2025423 AMAQI
23rd Jul 2025424 AMAQI
28°C26/32°C
23rd Jul 2025425 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025478 AMAQI
23rd Jul 2025479 AMAQI
23rd Jul 20255410 AMAQI
23rd Jul 20255611 AMAQI
23rd Jul 20255612 PMAQI
23rd Jul 2025561 PMAQI
23rd Jul 2025552 PMAQI
23rd Jul 2025533 PMAQI
23rd Jul 2025524 PMAQI
23rd Jul 2025545 PMAQI
23rd Jul 2025546 PMAQI
23rd Jul 2025527 PMAQI
23rd Jul 2025488 PMAQI
23rd Jul 2025469 PMAQI
23rd Jul 20254810 PMAQI
23rd Jul 20254711 PMAQI
24th Jul 20254512 AMAQI
24th Jul 2025431 AMAQI
24th Jul 2025432 AMAQI
24th Jul 2025433 AMAQI
24th Jul 2025444 AMAQI
30°C27/33°C
24th Jul 2025445 AMAQI
24th Jul 2025446 AMAQI
24th Jul 2025447 AMAQI
24th Jul 2025478 AMAQI
24th Jul 2025429 AMAQI
24th Jul 20253710 AMAQI
24th Jul 20254411 AMAQI
24th Jul 20254612 PMAQI
24th Jul 2025501 PMAQI
24th Jul 2025562 PMAQI
24th Jul 2025563 PMAQI
24th Jul 2025534 PMAQI
24th Jul 2025565 PMAQI
24th Jul 2025566 PMAQI
24th Jul 2025557 PMAQI
24th Jul 2025518 PMAQI
24th Jul 2025509 PMAQI
24th Jul 20255010 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20254712 AMAQI
25th Jul 2025461 AMAQI
25th Jul 2025462 AMAQI
25th Jul 2025463 AMAQI
25th Jul 2025484 AMAQI
29°C27/33°C
25th Jul 2025475 AMAQI
25th Jul 2025476 AMAQI
25th Jul 2025477 AMAQI
25th Jul 2025538 AMAQI
25th Jul 2025599 AMAQI
25th Jul 20256110 AMAQI
25th Jul 20255811 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025531 PMAQI
25th Jul 2025462 PMAQI
25th Jul 2025383 PMAQI
25th Jul 2025404 PMAQI
25th Jul 2025495 PMAQI
25th Jul 2025496 PMAQI
25th Jul 2025447 PMAQI
25th Jul 2025478 PMAQI
25th Jul 2025469 PMAQI
25th Jul 20254610 PMAQI
25th Jul 20254911 PMAQI
26th Jul 20254712 AMAQI
26th Jul 2025481 AMAQI
26th Jul 2025482 AMAQI
26th Jul 2025493 AMAQI
26th Jul 2025484 AMAQI
30°C27/33°C
26th Jul 2025485 AMAQI
26th Jul 2025486 AMAQI
26th Jul 2025487 AMAQI
26th Jul 2025328 AMAQI
26th Jul 2025229 AMAQI
26th Jul 20252510 AMAQI
26th Jul 20253311 AMAQI
26th Jul 20254212 PMAQI
26th Jul 2025391 PMAQI
26th Jul 2025362 PMAQI
26th Jul 2025373 PMAQI
26th Jul 2025374 PMAQI
26th Jul 2025415 PMAQI
26th Jul 2025416 PMAQI
26th Jul 2025467 PMAQI
26th Jul 2025498 PMAQI
26th Jul 2025509 PMAQI
26th Jul 20255010 PMAQI
26th Jul 20255011 PMAQI
27th Jul 20255012 AMAQI
27th Jul 2025501 AMAQI
27th Jul 2025492 AMAQI
27th Jul 2025483 AMAQI
27th Jul 2025474 AMAQI
27°C26/29°C
27th Jul 2025485 AMAQI
27th Jul 2025476 AMAQI
27th Jul 2025477 AMAQI
27th Jul 2025408 AMAQI
27th Jul 2025359 AMAQI
27th Jul 20254110 AMAQI
27th Jul 20254211 AMAQI
27th Jul 20254012 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025372 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025374 PMAQI
27th Jul 2025385 PMAQI
27th Jul 2025396 PMAQI
27th Jul 2025427 PMAQI
27th Jul 2025488 PMAQI
27th Jul 2025449 PMAQI
27th Jul 20254410 PMAQI
27th Jul 20254411 PMAQI
28th Jul 20254412 AMAQI
28th Jul 2025491 AMAQI
28th Jul 2025482 AMAQI
28th Jul 2025473 AMAQI
28th Jul 2025464 AMAQI
29°C27/32°C
28th Jul 2025475 AMAQI
28th Jul 2025476 AMAQI
28th Jul 2025467 AMAQI
28th Jul 2025298 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20254310 AMAQI
28th Jul 20254011 AMAQI
28th Jul 20253612 PMAQI
28th Jul 2025321 PMAQI
28th Jul 2025302 PMAQI
28th Jul 2025293 PMAQI
28th Jul 2025284 PMAQI
28th Jul 2025305 PMAQI
28th Jul 2025306 PMAQI
28th Jul 2025347 PMAQI
28th Jul 2025428 PMAQI
28th Jul 2025409 PMAQI
28th Jul 20254010 PMAQI
28th Jul 20254111 PMAQI
29th Jul 20254212 AMAQI
29th Jul 2025451 AMAQI
29th Jul 2025462 AMAQI
29th Jul 2025443 AMAQI
29th Jul 2025434 AMAQI
26°C24/26°C
29th Jul 2025445 AMAQI
29th Jul 2025436 AMAQI
29th Jul 2025447 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025259 AMAQI
29th Jul 20253310 AMAQI
29th Jul 20253611 AMAQI
29th Jul 20253612 PMAQI
29th Jul 2025351 PMAQI
29th Jul 2025292 PMAQI
29th Jul 2025273 PMAQI
29th Jul 2025294 PMAQI
29th Jul 2025325 PMAQI
29th Jul 2025366 PMAQI
29th Jul 2025407 PMAQI
29th Jul 2025408 PMAQI
29th Jul 2025419 PMAQI
29th Jul 20254010 PMAQI
29th Jul 20254111 PMAQI
30th Jul 20254212 AMAQI
30th Jul 2025421 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025423 AMAQI
30th Jul 2025414 AMAQI
26°C25/27°C
30th Jul 2025405 AMAQI
30th Jul 2025406 AMAQI
30th Jul 2025417 AMAQI
30th Jul 2025358 AMAQI
30th Jul 2025309 AMAQI
30th Jul 20253410 AMAQI
30th Jul 20254011 AMAQI
30th Jul 20254112 PMAQI
30th Jul 2025431 PMAQI
30th Jul 2025442 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025394 PMAQI
30th Jul 2025405 PMAQI
30th Jul 2025506 PMAQI
30th Jul 2025507 PMAQI
30th Jul 2025438 PMAQI
30th Jul 2025449 PMAQI
30th Jul 20254210 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025421 AMAQI
31st Jul 2025422 AMAQI
31st Jul 2025413 AMAQI
31st Jul 2025414 AMAQI
27°C25/29°C
31st Jul 2025415 AMAQI
31st Jul 2025416 AMAQI
31st Jul 2025417 AMAQI
31st Jul 2025418 AMAQI
31st Jul 2025419 AMAQI
31st Jul 20253810 AMAQI
31st Jul 20253411 AMAQI
31st Jul 20253912 PMAQI
31st Jul 2025431 PMAQI
31st Jul 2025422 PMAQI
31st Jul 2025453 PMAQI
31st Jul 2025424 PMAQI
31st Jul 2025445 PMAQI
31st Jul 2025466 PMAQI
31st Jul 2025537 PMAQI
31st Jul 2025528 PMAQI
31st Jul 2025509 PMAQI
31st Jul 20254910 PMAQI
31st Jul 20255411 PMAQI
1st Aug 20255012 AMAQI
1st Aug 2025481 AMAQI
1st Aug 2025482 AMAQI
1st Aug 2025443 AMAQI
1st Aug 2025434 AMAQI
28°C26/31°C
1st Aug 2025435 AMAQI
1st Aug 2025446 AMAQI
1st Aug 2025477 AMAQI
1st Aug 2025508 AMAQI
1st Aug 2025629 AMAQI
1st Aug 20256710 AMAQI
1st Aug 20255811 AMAQI
1st Aug 20255612 PMAQI
1st Aug 2025551 PMAQI
1st Aug 2025482 PMAQI
1st Aug 2025453 PMAQI
1st Aug 2025364 PMAQI
1st Aug 2025345 PMAQI
1st Aug 2025416 PMAQI
1st Aug 2025437 PMAQI
1st Aug 2025448 PMAQI
1st Aug 2025399 PMAQI
1st Aug 20254510 PMAQI
1st Aug 20254611 PMAQI
2nd Aug 20254912 AMAQI
2nd Aug 2025491 AMAQI
2nd Aug 2025482 AMAQI
2nd Aug 2025503 AMAQI
2nd Aug 2025504 AMAQI
27°C26/29°C
2nd Aug 2025495 AMAQI
2nd Aug 2025506 AMAQI
2nd Aug 2025497 AMAQI
2nd Aug 2025268 AMAQI
2nd Aug 2025289 AMAQI
2nd Aug 20253610 AMAQI
2nd Aug 20254811 AMAQI
2nd Aug 20255112 PMAQI
2nd Aug 2025521 PMAQI
2nd Aug 2025472 PMAQI
2nd Aug 2025513 PMAQI
2nd Aug 2025404 PMAQI
2nd Aug 2025305 PMAQI
2nd Aug 2025406 PMAQI
2nd Aug 2025397 PMAQI
2nd Aug 2025448 PMAQI
2nd Aug 2025479 PMAQI
2nd Aug 20255310 PMAQI
2nd Aug 20254911 PMAQI
3rd Aug 20255112 AMAQI
3rd Aug 2025501 AMAQI
3rd Aug 2025492 AMAQI
3rd Aug 2025493 AMAQI
3rd Aug 2025494 AMAQI
--°C/°C
3rd Aug 2025495 AMAQI
5 AM3rd Aug 2025526 AMAQI
3rd Aug 2025527 AMAQI
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
42AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
8 AM - 9 AM
38AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 42), while the lowest AQI was between 8 AM to 9 AM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 11 PM
43AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
43AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 43), while the lowest AQI was between 12 AM to 11 PM (Avg. 43).
2025 Days Vs Air Quality
Annan District, Tainan, Taiwan
2025
38%
80
61%
130
1%
3
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
80 DaysModerate
130 DaysPoor
3 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 38%
Health Risk Level:
High
In 2025, 38% of 214 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
Annan District, Tainan, Taiwan
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
105AQI
105AQI
2nd January 2025
66AQI
66AQI
3rd January 2025
69AQI
69AQI
4th January 2025
66AQI
66AQI
5th January 2025
66AQI
66AQI
6th January 2025
83AQI
83AQI
7th January 2025
81AQI
81AQI
8th January 2025
72AQI
72AQI
9th January 2025
77AQI
77AQI
10th January 2025
65AQI
65AQI
11th January 2025
58AQI
58AQI
12th January 2025
60AQI
60AQI
13th January 2025
68AQI
68AQI
14th January 2025
84AQI
84AQI
15th January 2025
85AQI
85AQI
16th January 2025
69AQI
69AQI
17th January 2025
70AQI
70AQI
18th January 2025
76AQI
76AQI
19th January 2025
67AQI
67AQI
20th January 2025
83AQI
83AQI
21st January 2025
92AQI
92AQI
22nd January 2025
95AQI
95AQI
23rd January 2025
101AQI
101AQI
24th January 2025
81AQI
81AQI
25th January 2025
97AQI
97AQI
26th January 2025
74AQI
74AQI
27th January 2025
65AQI
65AQI
28th January 2025
65AQI
65AQI
29th January 2025
65AQI
65AQI
30th January 2025
69AQI
69AQI
31st January 2025
80AQI
80AQI
1st February 2025
63AQI
63AQI
2nd February 2025
63AQI
63AQI
3rd February 2025
62AQI
62AQI
4th February 2025
72AQI
72AQI
5th February 2025
79AQI
79AQI
6th February 2025
84AQI
84AQI
7th February 2025
69AQI
69AQI
8th February 2025
67AQI
67AQI
9th February 2025
57AQI
57AQI
10th February 2025
62AQI
62AQI
11th February 2025
73AQI
73AQI
12th February 2025
73AQI
73AQI
13th February 2025
59AQI
59AQI
14th February 2025
70AQI
70AQI
15th February 2025
62AQI
62AQI
16th February 2025
85AQI
85AQI
17th February 2025
98AQI
98AQI
18th February 2025
89AQI
89AQI
19th February 2025
73AQI
73AQI
20th February 2025
91AQI
91AQI
21st February 2025
62AQI
62AQI
22nd February 2025
69AQI
69AQI
23rd February 2025
55AQI
55AQI
24th February 2025
66AQI
66AQI
25th February 2025
76AQI
76AQI
26th February 2025
96AQI
96AQI
27th February 2025
103AQI
103AQI
28th February 2025
79AQI
79AQI
1st March 2025
77AQI
77AQI
2nd March 2025
63AQI
63AQI
3rd March 2025
58AQI
58AQI
4th March 2025
59AQI
59AQI
5th March 2025
55AQI
55AQI
6th March 2025
48AQI
48AQI
7th March 2025
61AQI
61AQI
8th March 2025
65AQI
65AQI
9th March 2025
66AQI
66AQI
10th March 2025
81AQI
81AQI
11th March 2025
93AQI
93AQI
12th March 2025
82AQI
82AQI
13th March 2025
80AQI
80AQI
14th March 2025
83AQI
83AQI
15th March 2025
74AQI
74AQI
16th March 2025
56AQI
56AQI
17th March 2025
85AQI
85AQI
18th March 2025
65AQI
65AQI
19th March 2025
74AQI
74AQI
20th March 2025
75AQI
75AQI
21st March 2025
86AQI
86AQI
22nd March 2025
74AQI
74AQI
23rd March 2025
71AQI
71AQI
24th March 2025
65AQI
65AQI
25th March 2025
64AQI
64AQI
26th March 2025
63AQI
63AQI
27th March 2025
56AQI
56AQI
28th March 2025
64AQI
64AQI
29th March 2025
59AQI
59AQI
30th March 2025
47AQI
47AQI
31st March 2025
53AQI
53AQI
1st April 2025
40AQI
40AQI
2nd April 2025
63AQI
63AQI
3rd April 2025
62AQI
62AQI
4th April 2025
71AQI
71AQI
5th April 2025
75AQI
75AQI
6th April 2025
65AQI
65AQI
7th April 2025
72AQI
72AQI
8th April 2025
73AQI
73AQI
9th April 2025
67AQI
67AQI
10th April 2025
65AQI
65AQI
11th April 2025
63AQI
63AQI
12th April 2025
55AQI
55AQI
13th April 2025
86AQI
86AQI
14th April 2025
74AQI
74AQI
15th April 2025
87AQI
87AQI
16th April 2025
78AQI
78AQI
17th April 2025
71AQI
71AQI
18th April 2025
60AQI
60AQI
19th April 2025
56AQI
56AQI
20th April 2025
56AQI
56AQI
21st April 2025
56AQI
56AQI
22nd April 2025
54AQI
54AQI
23rd April 2025
54AQI
54AQI
24th April 2025
51AQI
51AQI
25th April 2025
50AQI
50AQI
26th April 2025
64AQI
64AQI
27th April 2025
62AQI
62AQI
28th April 2025
57AQI
57AQI
29th April 2025
68AQI
68AQI
30th April 2025
59AQI
59AQI
1st May 2025
60AQI
60AQI
2nd May 2025
68AQI
68AQI
3rd May 2025
67AQI
67AQI
4th May 2025
71AQI
71AQI
5th May 2025
57AQI
57AQI
6th May 2025
62AQI
62AQI
7th May 2025
56AQI
56AQI
8th May 2025
58AQI
58AQI
9th May 2025
44AQI
44AQI
10th May 2025
37AQI
37AQI
11th May 2025
42AQI
42AQI
12th May 2025
54AQI
54AQI
13th May 2025
52AQI
52AQI
14th May 2025
53AQI
53AQI
15th May 2025
47AQI
47AQI
16th May 2025
42AQI
42AQI
17th May 2025
40AQI
40AQI
18th May 2025
33AQI
33AQI
19th May 2025
32AQI
32AQI
20th May 2025
34AQI
34AQI
21st May 2025
30AQI
30AQI
22nd May 2025
38AQI
38AQI
23rd May 2025
36AQI
36AQI
24th May 2025
40AQI
40AQI
25th May 2025
52AQI
52AQI
26th May 2025
55AQI
55AQI
27th May 2025
54AQI
54AQI
28th May 2025
55AQI
55AQI
29th May 2025
44AQI
44AQI
30th May 2025
52AQI
52AQI
31st May 2025
56AQI
56AQI
1st June 2025
46AQI
46AQI
2nd June 2025
40AQI
40AQI
3rd June 2025
37AQI
37AQI
4th June 2025
36AQI
36AQI
5th June 2025
34AQI
34AQI
6th June 2025
36AQI
36AQI
7th June 2025
30AQI
30AQI
8th June 2025
26AQI
26AQI
9th June 2025
29AQI
29AQI
10th June 2025
29AQI
29AQI
11th June 2025
38AQI
38AQI
12th June 2025
43AQI
43AQI
13th June 2025
31AQI
31AQI
14th June 2025
33AQI
33AQI
15th June 2025
39AQI
39AQI
16th June 2025
33AQI
33AQI
17th June 2025
31AQI
31AQI
18th June 2025
34AQI
34AQI
19th June 2025
33AQI
33AQI
20th June 2025
34AQI
34AQI
21st June 2025
28AQI
28AQI
22nd June 2025
24AQI
24AQI
23rd June 2025
24AQI
24AQI
24th June 2025
25AQI
25AQI
25th June 2025
24AQI
24AQI
26th June 2025
26AQI
26AQI
27th June 2025
26AQI
26AQI
28th June 2025
28AQI
28AQI
29th June 2025
29AQI
29AQI
30th June 2025
33AQI
33AQI
1st July 2025
31AQI
31AQI
2nd July 2025
35AQI
35AQI
3rd July 2025
36AQI
36AQI
4th July 2025
38AQI
38AQI
5th July 2025
36AQI
36AQI
6th July 2025
33AQI
33AQI
7th July 2025
32AQI
32AQI
8th July 2025
37AQI
37AQI
9th July 2025
39AQI
39AQI
10th July 2025
34AQI
34AQI
11th July 2025
37AQI
37AQI
12th July 2025
41AQI
41AQI
13th July 2025
43AQI
43AQI
14th July 2025
45AQI
45AQI
15th July 2025
45AQI
45AQI
16th July 2025
45AQI
45AQI
17th July 2025
45AQI
45AQI
18th July 2025
45AQI
45AQI
19th July 2025
45AQI
45AQI
20th July 2025
37AQI
37AQI
21st July 2025
39AQI
39AQI
22nd July 2025
39AQI
39AQI
23rd July 2025
47AQI
47AQI
24th July 2025
48AQI
48AQI
25th July 2025
48AQI
48AQI
26th July 2025
44AQI
44AQI
27th July 2025
45AQI
45AQI
28th July 2025
40AQI
40AQI
29th July 2025
39AQI
39AQI
30th July 2025
42AQI
42AQI
31st July 2025
44AQI
44AQI
1st August 2025
49AQI
49AQI
76AQI
73AQI
68AQI
64AQI
49AQI
32AQI
40AQI
49AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202557AQI
29
2
27
1
2
29
2
28
14
17
30
31
1
80
130
3
Highest AQI recorded in
January76AQI
Lowest AQI recorded in
June32AQI
202461AQI
2
16
13
3
23
3
26
5
3
27
6
24
1
29
31
28
3
16
14
7
24
2
27
1
31
127
215
23
Highest AQI recorded in
January92AQI
Lowest AQI recorded in
July31AQI
202364AQI
1
24
6
19
9
27
4
1
27
2
8
23
28
2
29
2
29
2
18
12
3
25
3
1
27
1
1
24
6
119
214
31
Highest AQI recorded in
February88AQI
Lowest AQI recorded in
July30AQI
202259AQI
2
5
14
2
1
22
8
7
22
1
16
15
28
2
23
1
5
23
6
25
3
23
4
7
24
101
173
15
Highest AQI recorded in
March85AQI
Lowest AQI recorded in
June29AQI
202165AQI
17
12
11
16
1
15
16
30
22
9
28
2
30
1
28
3
16
14
6
25
2
27
1
2
26
3
134
180
48
1
Highest AQI recorded in
February106AQI
Lowest AQI recorded in
June35AQI
202058AQI
1
11
1
2
19
14
4
29
1
29
2
29
2
5
25
31
1
29
2
25
4
112
149
5
Highest AQI recorded in
March80AQI
Lowest AQI recorded in
June30AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
65AQILeast Polluted Year Recorded
2025(Avg.)
57AQIAnnan District's annual 2025 AQI (57) shows an average percentage change of -6.4% (improved AQI) compared to previous years: 2020 (58), 2021 (65), 2022 (59), 2023 (64), 2024 (61).
