Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Iwashita, Kumamoto, Japan 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

Iwashita, Kumamoto, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
31st Aug 2022
66AQI
Lowest AQI recorded on
31st Aug 2023
9AQI

Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 42 of Good air quality, showing improvement over 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 20th Aug - 21st Aug 2025

Iwashita, Kumamoto, Japan

AQI
Day
Night
.

5 AM20th Aug 2025

7 PM

4 AM21st Aug 2025

Day time
Avg. Highest Time
5AM20th Aug

48AQI

Avg. Lowest Time
6PM20th Aug

22AQI

Night time
Avg. Highest Time
3AM21st Aug

47AQI

Avg. Lowest Time
7PM20th Aug

28AQI

In the last 24 hours,

Iwashita's AQI reached its highest point of 48 at 5 AM during the Day, while the lowest point, 22, was recorded at 6 PM during the Day between 20th Aug and 21st Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Iwashita, Kumamoto, Japan

JulAug
22nd - 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 - 19th19th - 20th20th - 21st21st
Day
Night
22nd Jul 2025335 AMAQI
22nd Jul 2025336 AMAQI
22nd Jul 2025347 AMAQI
22nd Jul 2025338 AMAQI
22nd Jul 2025249 AMAQI
22nd Jul 20252610 AMAQI
22nd Jul 20253211 AMAQI
22nd Jul 20253712 PMAQI
22nd Jul 2025431 PMAQI
22nd Jul 2025422 PMAQI
22nd Jul 2025433 PMAQI
22nd Jul 2025504 PMAQI
22nd Jul 2025565 PMAQI
22nd Jul 2025556 PMAQI
22nd Jul 2025487 PMAQI
22nd Jul 2025508 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20253610 PMAQI
22nd Jul 20252811 PMAQI
23rd Jul 20252812 AMAQI
23rd Jul 2025301 AMAQI
23rd Jul 2025322 AMAQI
23rd Jul 2025353 AMAQI
23rd Jul 2025354 AMAQI

28°C24/33°C

23rd Jul 2025345 AMAQI
23rd Jul 2025346 AMAQI
23rd Jul 2025347 AMAQI
23rd Jul 2025348 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252410 AMAQI
23rd Jul 20253011 AMAQI
23rd Jul 20253212 PMAQI
23rd Jul 2025371 PMAQI
23rd Jul 2025372 PMAQI
23rd Jul 2025383 PMAQI
23rd Jul 2025424 PMAQI
23rd Jul 2025425 PMAQI
23rd Jul 2025426 PMAQI
23rd Jul 2025487 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025509 PMAQI
23rd Jul 20253910 PMAQI
23rd Jul 20252911 PMAQI
24th Jul 20252712 AMAQI
24th Jul 2025291 AMAQI
24th Jul 2025322 AMAQI
24th Jul 2025333 AMAQI
24th Jul 2025334 AMAQI

28°C24/34°C

24th Jul 2025335 AMAQI
24th Jul 2025336 AMAQI
24th Jul 2025337 AMAQI
24th Jul 2025338 AMAQI
24th Jul 2025239 AMAQI
24th Jul 20252110 AMAQI
24th Jul 20252411 AMAQI
24th Jul 20252212 PMAQI
24th Jul 2025221 PMAQI
24th Jul 2025222 PMAQI
24th Jul 2025223 PMAQI
24th Jul 2025184 PMAQI
24th Jul 2025175 PMAQI
24th Jul 2025176 PMAQI
24th Jul 2025237 PMAQI
24th Jul 2025228 PMAQI
24th Jul 2025249 PMAQI
24th Jul 20252310 PMAQI
24th Jul 20252311 PMAQI
25th Jul 20252312 AMAQI
25th Jul 2025271 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025333 AMAQI
25th Jul 2025314 AMAQI

29°C24/34°C

25th Jul 2025295 AMAQI
25th Jul 2025306 AMAQI
25th Jul 2025307 AMAQI
25th Jul 2025318 AMAQI
25th Jul 2025199 AMAQI
25th Jul 20252110 AMAQI
25th Jul 20252311 AMAQI
25th Jul 20252512 PMAQI
25th Jul 2025201 PMAQI
25th Jul 2025192 PMAQI
25th Jul 2025233 PMAQI
25th Jul 2025224 PMAQI
25th Jul 2025165 PMAQI
25th Jul 2025156 PMAQI
25th Jul 2025147 PMAQI
25th Jul 2025168 PMAQI
25th Jul 2025209 PMAQI
25th Jul 20252110 PMAQI
25th Jul 20252011 PMAQI
26th Jul 20252212 AMAQI
26th Jul 2025251 AMAQI
26th Jul 2025302 AMAQI
26th Jul 2025303 AMAQI
26th Jul 2025284 AMAQI

28°C25/34°C

26th Jul 2025285 AMAQI
26th Jul 2025276 AMAQI
26th Jul 2025287 AMAQI
26th Jul 2025278 AMAQI
26th Jul 2025189 AMAQI
26th Jul 20251310 AMAQI
26th Jul 20251611 AMAQI
26th Jul 20251812 PMAQI
26th Jul 2025161 PMAQI
26th Jul 2025162 PMAQI
26th Jul 2025183 PMAQI
26th Jul 2025184 PMAQI
26th Jul 2025165 PMAQI
26th Jul 2025156 PMAQI
26th Jul 2025147 PMAQI
26th Jul 2025188 PMAQI
26th Jul 2025219 PMAQI
26th Jul 20252210 PMAQI
26th Jul 20252011 PMAQI
27th Jul 20252112 AMAQI
27th Jul 2025241 AMAQI
27th Jul 2025272 AMAQI
27th Jul 2025283 AMAQI
27th Jul 2025274 AMAQI

29°C25/33°C

27th Jul 2025265 AMAQI
27th Jul 2025266 AMAQI
27th Jul 2025267 AMAQI
27th Jul 2025268 AMAQI
27th Jul 2025209 AMAQI
27th Jul 20251610 AMAQI
27th Jul 20251711 AMAQI
27th Jul 20251712 PMAQI
27th Jul 2025181 PMAQI
27th Jul 2025292 PMAQI
27th Jul 2025163 PMAQI
27th Jul 2025164 PMAQI
27th Jul 2025175 PMAQI
27th Jul 2025166 PMAQI
27th Jul 2025167 PMAQI
27th Jul 2025208 PMAQI
27th Jul 2025229 PMAQI
27th Jul 20252110 PMAQI
27th Jul 20252211 PMAQI
28th Jul 20252112 AMAQI
28th Jul 2025231 AMAQI
28th Jul 2025262 AMAQI
28th Jul 2025273 AMAQI
28th Jul 2025264 AMAQI

29°C26/33°C

28th Jul 2025255 AMAQI
28th Jul 2025256 AMAQI
28th Jul 2025257 AMAQI
28th Jul 2025248 AMAQI
28th Jul 2025199 AMAQI
28th Jul 20252110 AMAQI
28th Jul 20252811 AMAQI
28th Jul 20253012 PMAQI
28th Jul 2025271 PMAQI
28th Jul 2025232 PMAQI
28th Jul 2025253 PMAQI
28th Jul 2025244 PMAQI
28th Jul 2025185 PMAQI
28th Jul 2025166 PMAQI
28th Jul 2025147 PMAQI
28th Jul 2025168 PMAQI
28th Jul 2025209 PMAQI
28th Jul 20252110 PMAQI
28th Jul 20252011 PMAQI
29th Jul 20252212 AMAQI
29th Jul 2025221 AMAQI
29th Jul 2025252 AMAQI
29th Jul 2025263 AMAQI
29th Jul 2025244 AMAQI

29°C24/35°C

29th Jul 2025235 AMAQI
29th Jul 2025246 AMAQI
29th Jul 2025247 AMAQI
29th Jul 2025258 AMAQI
29th Jul 2025209 AMAQI
29th Jul 20252210 AMAQI
29th Jul 20252511 AMAQI
29th Jul 20252612 PMAQI
29th Jul 2025291 PMAQI
29th Jul 2025292 PMAQI
29th Jul 2025303 PMAQI
29th Jul 2025284 PMAQI
29th Jul 2025265 PMAQI
29th Jul 2025226 PMAQI
29th Jul 2025207 PMAQI
29th Jul 2025278 PMAQI
29th Jul 2025279 PMAQI
29th Jul 20252210 PMAQI
29th Jul 20252211 PMAQI
30th Jul 20252212 AMAQI
30th Jul 2025231 AMAQI
30th Jul 2025242 AMAQI
30th Jul 2025233 AMAQI
30th Jul 2025244 AMAQI

29°C24/34°C

30th Jul 2025245 AMAQI
30th Jul 2025246 AMAQI
30th Jul 2025247 AMAQI
30th Jul 2025248 AMAQI
30th Jul 2025259 AMAQI
30th Jul 20253010 AMAQI
30th Jul 20252811 AMAQI
30th Jul 20252612 PMAQI
30th Jul 2025291 PMAQI
30th Jul 2025262 PMAQI
30th Jul 2025283 PMAQI
30th Jul 2025334 PMAQI
30th Jul 2025295 PMAQI
30th Jul 2025256 PMAQI
30th Jul 2025187 PMAQI
30th Jul 2025188 PMAQI
30th Jul 2025209 PMAQI
30th Jul 20252010 PMAQI
30th Jul 20252011 PMAQI
31st Jul 20252012 AMAQI
31st Jul 2025211 AMAQI
31st Jul 2025222 AMAQI
31st Jul 2025233 AMAQI
31st Jul 2025234 AMAQI

29°C24/35°C

31st Jul 2025235 AMAQI
31st Jul 2025236 AMAQI
31st Jul 2025237 AMAQI
31st Jul 2025238 AMAQI
31st Jul 2025239 AMAQI
31st Jul 20252310 AMAQI
31st Jul 20252711 AMAQI
31st Jul 20252812 PMAQI
31st Jul 2025271 PMAQI
31st Jul 2025242 PMAQI
31st Jul 2025273 PMAQI
31st Jul 2025304 PMAQI
31st Jul 2025275 PMAQI
31st Jul 2025266 PMAQI
31st Jul 2025317 PMAQI
31st Jul 2025318 PMAQI
31st Jul 2025409 PMAQI
31st Jul 20253910 PMAQI
31st Jul 20253911 PMAQI
1st Aug 20253012 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025322 AMAQI
1st Aug 2025293 AMAQI
1st Aug 2025284 AMAQI

28°C23/34°C

1st Aug 2025275 AMAQI
1st Aug 2025286 AMAQI
1st Aug 2025297 AMAQI
1st Aug 2025308 AMAQI
1st Aug 2025499 AMAQI
1st Aug 20254710 AMAQI
1st Aug 20255211 AMAQI
1st Aug 20255312 PMAQI
1st Aug 2025541 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025563 PMAQI
1st Aug 2025554 PMAQI
1st Aug 2025565 PMAQI
1st Aug 2025546 PMAQI
1st Aug 2025517 PMAQI
1st Aug 2025518 PMAQI
1st Aug 2025449 PMAQI
1st Aug 20254010 PMAQI
1st Aug 20254411 PMAQI
2nd Aug 20253612 AMAQI
2nd Aug 2025321 AMAQI
2nd Aug 2025312 AMAQI
2nd Aug 2025283 AMAQI
2nd Aug 2025344 AMAQI

29°C25/34°C

2nd Aug 2025375 AMAQI
2nd Aug 2025366 AMAQI
2nd Aug 2025357 AMAQI
2nd Aug 2025368 AMAQI
2nd Aug 2025549 AMAQI
2nd Aug 20255410 AMAQI
2nd Aug 20255811 AMAQI
2nd Aug 20255912 PMAQI
2nd Aug 2025631 PMAQI
2nd Aug 2025582 PMAQI
2nd Aug 2025593 PMAQI
2nd Aug 2025534 PMAQI
2nd Aug 2025605 PMAQI
2nd Aug 2025576 PMAQI
2nd Aug 2025577 PMAQI
2nd Aug 2025538 PMAQI
2nd Aug 2025529 PMAQI
2nd Aug 20255210 PMAQI
2nd Aug 20255011 PMAQI
3rd Aug 20254612 AMAQI
3rd Aug 2025381 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025363 AMAQI
3rd Aug 2025394 AMAQI

29°C25/35°C

3rd Aug 2025445 AMAQI
3rd Aug 2025426 AMAQI
3rd Aug 2025437 AMAQI
3rd Aug 2025438 AMAQI
3rd Aug 2025529 AMAQI
3rd Aug 20255410 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025571 PMAQI
3rd Aug 2025592 PMAQI
3rd Aug 2025573 PMAQI
3rd Aug 2025574 PMAQI
3rd Aug 2025545 PMAQI
3rd Aug 2025536 PMAQI
3rd Aug 2025507 PMAQI
3rd Aug 2025498 PMAQI
3rd Aug 2025499 PMAQI
3rd Aug 20255010 PMAQI
3rd Aug 20254411 PMAQI
4th Aug 20254412 AMAQI
4th Aug 2025401 AMAQI
4th Aug 2025412 AMAQI
4th Aug 2025423 AMAQI
4th Aug 2025464 AMAQI

28°C25/32°C

4th Aug 2025475 AMAQI
4th Aug 2025486 AMAQI
4th Aug 2025477 AMAQI
4th Aug 2025468 AMAQI
4th Aug 2025449 AMAQI
4th Aug 20254010 AMAQI
4th Aug 20254511 AMAQI
4th Aug 20253212 PMAQI
4th Aug 2025401 PMAQI
4th Aug 2025332 PMAQI
4th Aug 2025383 PMAQI
4th Aug 2025374 PMAQI
4th Aug 2025505 PMAQI
4th Aug 2025516 PMAQI
4th Aug 2025527 PMAQI
4th Aug 2025538 PMAQI
4th Aug 2025539 PMAQI
4th Aug 20254810 PMAQI
4th Aug 20254511 PMAQI
5th Aug 20254612 AMAQI
5th Aug 2025461 AMAQI
5th Aug 2025432 AMAQI
5th Aug 2025433 AMAQI
5th Aug 2025464 AMAQI

28°C25/31°C

5th Aug 2025465 AMAQI
5th Aug 2025456 AMAQI
5th Aug 2025467 AMAQI
5th Aug 2025438 AMAQI
5th Aug 2025369 AMAQI
5th Aug 20254610 AMAQI
5th Aug 20254911 AMAQI
5th Aug 20254712 PMAQI
5th Aug 2025561 PMAQI
5th Aug 2025522 PMAQI
5th Aug 2025483 PMAQI
5th Aug 2025444 PMAQI
5th Aug 2025425 PMAQI
5th Aug 2025396 PMAQI
5th Aug 2025447 PMAQI
5th Aug 2025448 PMAQI
5th Aug 2025409 PMAQI
5th Aug 20254610 PMAQI
5th Aug 20254211 PMAQI
6th Aug 20254612 AMAQI
6th Aug 2025461 AMAQI
6th Aug 2025462 AMAQI
6th Aug 2025443 AMAQI
6th Aug 2025484 AMAQI

29°C26/33°C

6th Aug 2025485 AMAQI
6th Aug 2025486 AMAQI
6th Aug 2025477 AMAQI
6th Aug 2025498 AMAQI
6th Aug 2025339 AMAQI
6th Aug 20253210 AMAQI
6th Aug 20254611 AMAQI
6th Aug 20254112 PMAQI
6th Aug 2025421 PMAQI
6th Aug 2025442 PMAQI
6th Aug 2025403 PMAQI
6th Aug 2025404 PMAQI
6th Aug 2025465 PMAQI
6th Aug 2025456 PMAQI
6th Aug 2025527 PMAQI
6th Aug 2025528 PMAQI
6th Aug 2025529 PMAQI
6th Aug 20255010 PMAQI
6th Aug 20254911 PMAQI
7th Aug 20254712 AMAQI
7th Aug 2025461 AMAQI
7th Aug 2025482 AMAQI
7th Aug 2025473 AMAQI
7th Aug 2025464 AMAQI

29°C26/33°C

7th Aug 2025475 AMAQI
7th Aug 2025476 AMAQI
7th Aug 2025477 AMAQI
7th Aug 2025468 AMAQI
7th Aug 2025519 AMAQI
7th Aug 20254810 AMAQI
7th Aug 20255111 AMAQI
7th Aug 20254712 PMAQI
7th Aug 2025501 PMAQI
7th Aug 2025532 PMAQI
7th Aug 2025423 PMAQI
7th Aug 2025294 PMAQI
7th Aug 2025235 PMAQI
7th Aug 2025206 PMAQI
7th Aug 2025197 PMAQI
7th Aug 2025268 PMAQI
7th Aug 2025369 PMAQI
7th Aug 20253910 PMAQI
7th Aug 20254211 PMAQI
8th Aug 20254212 AMAQI
8th Aug 2025471 AMAQI
8th Aug 2025482 AMAQI
8th Aug 2025483 AMAQI
8th Aug 2025484 AMAQI

27°C25/29°C

8th Aug 2025485 AMAQI
8th Aug 2025496 AMAQI
8th Aug 2025497 AMAQI
8th Aug 2025488 AMAQI
8th Aug 2025299 AMAQI
8th Aug 20252310 AMAQI
8th Aug 20252211 AMAQI
8th Aug 20252312 PMAQI
8th Aug 2025281 PMAQI
8th Aug 2025282 PMAQI
8th Aug 2025293 PMAQI
8th Aug 2025284 PMAQI
8th Aug 2025285 PMAQI
8th Aug 2025306 PMAQI
8th Aug 2025327 PMAQI
8th Aug 2025388 PMAQI
8th Aug 2025429 PMAQI
8th Aug 20254210 PMAQI
8th Aug 20254011 PMAQI
9th Aug 20253812 AMAQI
9th Aug 2025431 AMAQI
9th Aug 2025502 AMAQI
9th Aug 2025493 AMAQI
9th Aug 2025464 AMAQI

26°C24/29°C

9th Aug 2025445 AMAQI
9th Aug 2025446 AMAQI
9th Aug 2025447 AMAQI
9th Aug 2025448 AMAQI
9th Aug 2025259 AMAQI
9th Aug 20251710 AMAQI
9th Aug 20251611 AMAQI
9th Aug 20251612 PMAQI
9th Aug 2025171 PMAQI
9th Aug 2025212 PMAQI
9th Aug 2025243 PMAQI
9th Aug 2025264 PMAQI
9th Aug 2025225 PMAQI
9th Aug 2025206 PMAQI
9th Aug 2025207 PMAQI
9th Aug 2025288 PMAQI
9th Aug 2025349 PMAQI
9th Aug 20253510 PMAQI
9th Aug 20253711 PMAQI
10th Aug 20253612 AMAQI
10th Aug 2025421 AMAQI
10th Aug 2025462 AMAQI
10th Aug 2025443 AMAQI
10th Aug 2025434 AMAQI

26°C24/28°C

10th Aug 2025405 AMAQI
10th Aug 2025396 AMAQI
10th Aug 2025407 AMAQI
10th Aug 2025408 AMAQI
10th Aug 2025389 AMAQI
10th Aug 20253610 AMAQI
10th Aug 20253411 AMAQI
10th Aug 20253412 PMAQI
10th Aug 2025341 PMAQI
10th Aug 2025342 PMAQI
10th Aug 2025303 PMAQI
10th Aug 2025314 PMAQI
10th Aug 2025335 PMAQI
10th Aug 2025336 PMAQI
10th Aug 2025327 PMAQI
10th Aug 2025358 PMAQI
10th Aug 2025339 PMAQI
10th Aug 20253410 PMAQI
10th Aug 20253611 PMAQI
11th Aug 20253612 AMAQI
11th Aug 2025381 AMAQI
11th Aug 2025422 AMAQI
11th Aug 2025433 AMAQI
11th Aug 2025424 AMAQI

27°C25/28°C

11th Aug 2025425 AMAQI
11th Aug 2025406 AMAQI
11th Aug 2025407 AMAQI
11th Aug 2025408 AMAQI
11th Aug 2025209 AMAQI
11th Aug 20251310 AMAQI
11th Aug 20251411 AMAQI
11th Aug 20251412 PMAQI
11th Aug 2025181 PMAQI
11th Aug 2025182 PMAQI
11th Aug 2025193 PMAQI
11th Aug 2025244 PMAQI
11th Aug 2025235 PMAQI
11th Aug 2025256 PMAQI
11th Aug 2025267 PMAQI
11th Aug 2025318 PMAQI
11th Aug 2025329 PMAQI
11th Aug 20253310 PMAQI
11th Aug 20253411 PMAQI
12th Aug 20253412 AMAQI
12th Aug 2025391 AMAQI
12th Aug 2025402 AMAQI
12th Aug 2025403 AMAQI
12th Aug 2025364 AMAQI

26°C25/28°C

12th Aug 2025345 AMAQI
12th Aug 2025366 AMAQI
12th Aug 2025347 AMAQI
12th Aug 2025338 AMAQI
12th Aug 2025219 AMAQI
12th Aug 20253010 AMAQI
12th Aug 20253211 AMAQI
12th Aug 20254012 PMAQI
12th Aug 2025281 PMAQI
12th Aug 2025312 PMAQI
12th Aug 2025323 PMAQI
12th Aug 2025344 PMAQI
12th Aug 2025325 PMAQI
12th Aug 2025366 PMAQI
12th Aug 2025407 PMAQI
12th Aug 2025338 PMAQI
12th Aug 2025389 PMAQI
12th Aug 20253510 PMAQI
12th Aug 20253411 PMAQI
13th Aug 20253512 AMAQI
13th Aug 2025361 AMAQI
13th Aug 2025372 AMAQI
13th Aug 2025363 AMAQI
13th Aug 2025364 AMAQI

28°C25/30°C

13th Aug 2025345 AMAQI
13th Aug 2025366 AMAQI
13th Aug 2025367 AMAQI
13th Aug 2025348 AMAQI
13th Aug 2025399 AMAQI
13th Aug 20254110 AMAQI
13th Aug 20252911 AMAQI
13th Aug 20253412 PMAQI
13th Aug 2025401 PMAQI
13th Aug 2025432 PMAQI
13th Aug 2025513 PMAQI
13th Aug 2025414 PMAQI
13th Aug 2025395 PMAQI
13th Aug 2025376 PMAQI
13th Aug 2025427 PMAQI
13th Aug 2025368 PMAQI
13th Aug 2025379 PMAQI
13th Aug 20253210 PMAQI
13th Aug 20253111 PMAQI
14th Aug 20253512 AMAQI
14th Aug 2025361 AMAQI
14th Aug 2025362 AMAQI
14th Aug 2025373 AMAQI
14th Aug 2025374 AMAQI

28°C24/32°C

14th Aug 2025385 AMAQI
14th Aug 2025396 AMAQI
14th Aug 2025377 AMAQI
14th Aug 2025368 AMAQI
14th Aug 2025229 AMAQI
14th Aug 20253410 AMAQI
14th Aug 20253711 AMAQI
14th Aug 20253712 PMAQI
14th Aug 2025371 PMAQI
14th Aug 2025492 PMAQI
14th Aug 2025483 PMAQI
14th Aug 2025364 PMAQI
14th Aug 2025445 PMAQI
14th Aug 2025306 PMAQI
14th Aug 2025397 PMAQI
14th Aug 2025408 PMAQI
14th Aug 2025399 PMAQI
14th Aug 20254210 PMAQI
14th Aug 20253811 PMAQI
15th Aug 20254412 AMAQI
15th Aug 2025391 AMAQI
15th Aug 2025362 AMAQI
15th Aug 2025363 AMAQI
15th Aug 2025394 AMAQI

28°C25/32°C

15th Aug 2025375 AMAQI
15th Aug 2025386 AMAQI
15th Aug 2025387 AMAQI
15th Aug 2025388 AMAQI
15th Aug 2025509 AMAQI
15th Aug 20254310 AMAQI
15th Aug 20255511 AMAQI
15th Aug 20254612 PMAQI
15th Aug 2025501 PMAQI
15th Aug 2025482 PMAQI
15th Aug 2025433 PMAQI
15th Aug 2025474 PMAQI
15th Aug 2025425 PMAQI
15th Aug 2025396 PMAQI
15th Aug 2025407 PMAQI
15th Aug 2025468 PMAQI
15th Aug 2025389 PMAQI
15th Aug 20253910 PMAQI
15th Aug 20254111 PMAQI
16th Aug 20254012 AMAQI
16th Aug 2025391 AMAQI
16th Aug 2025382 AMAQI
16th Aug 2025373 AMAQI
16th Aug 2025394 AMAQI

29°C25/33°C

16th Aug 2025405 AMAQI
16th Aug 2025406 AMAQI
16th Aug 2025407 AMAQI
16th Aug 2025408 AMAQI
16th Aug 2025459 AMAQI
16th Aug 20254910 AMAQI
16th Aug 20255611 AMAQI
16th Aug 20255612 PMAQI
16th Aug 2025521 PMAQI
16th Aug 2025432 PMAQI
16th Aug 2025433 PMAQI
16th Aug 2025404 PMAQI
16th Aug 2025425 PMAQI
16th Aug 2025426 PMAQI
16th Aug 2025457 PMAQI
16th Aug 2025408 PMAQI
16th Aug 2025439 PMAQI
16th Aug 20253510 PMAQI
16th Aug 20253611 PMAQI
17th Aug 20254212 AMAQI
17th Aug 2025411 AMAQI
17th Aug 2025392 AMAQI
17th Aug 2025383 AMAQI
17th Aug 2025394 AMAQI

29°C26/32°C

17th Aug 2025405 AMAQI
17th Aug 2025416 AMAQI
17th Aug 2025407 AMAQI
17th Aug 2025408 AMAQI
17th Aug 2025379 AMAQI
17th Aug 20255410 AMAQI
17th Aug 20255011 AMAQI
17th Aug 20254912 PMAQI
17th Aug 2025501 PMAQI
17th Aug 2025522 PMAQI
17th Aug 2025543 PMAQI
17th Aug 2025554 PMAQI
17th Aug 2025485 PMAQI
17th Aug 2025486 PMAQI
17th Aug 2025427 PMAQI
17th Aug 2025348 PMAQI
17th Aug 2025349 PMAQI
17th Aug 20253410 PMAQI
17th Aug 20253511 PMAQI
18th Aug 20253812 AMAQI
18th Aug 2025361 AMAQI
18th Aug 2025392 AMAQI
18th Aug 2025383 AMAQI
18th Aug 2025404 AMAQI

28°C25/31°C

18th Aug 2025415 AMAQI
18th Aug 2025416 AMAQI
18th Aug 2025407 AMAQI
18th Aug 2025418 AMAQI
18th Aug 2025369 AMAQI
18th Aug 20255410 AMAQI
18th Aug 20255111 AMAQI
18th Aug 20255612 PMAQI
18th Aug 2025591 PMAQI
18th Aug 2025602 PMAQI
18th Aug 2025563 PMAQI
18th Aug 2025584 PMAQI
18th Aug 2025565 PMAQI
18th Aug 2025576 PMAQI
18th Aug 2025577 PMAQI
18th Aug 2025538 PMAQI
18th Aug 2025469 PMAQI
18th Aug 20255010 PMAQI
18th Aug 20254711 PMAQI
19th Aug 20254912 AMAQI
19th Aug 2025401 AMAQI
19th Aug 2025412 AMAQI
19th Aug 2025403 AMAQI
19th Aug 2025424 AMAQI

28°C24/31°C

19th Aug 2025435 AMAQI
19th Aug 2025446 AMAQI
19th Aug 2025447 AMAQI
19th Aug 2025458 AMAQI
19th Aug 2025519 AMAQI
19th Aug 20256010 AMAQI
19th Aug 20256811 AMAQI
19th Aug 20255812 PMAQI
19th Aug 2025601 PMAQI
19th Aug 2025582 PMAQI
19th Aug 2025563 PMAQI
19th Aug 2025564 PMAQI
19th Aug 2025535 PMAQI
19th Aug 2025546 PMAQI
19th Aug 2025487 PMAQI
19th Aug 2025528 PMAQI
19th Aug 2025409 PMAQI
19th Aug 20254310 PMAQI
19th Aug 20254411 PMAQI
20th Aug 20254012 AMAQI
20th Aug 2025441 AMAQI
20th Aug 2025422 AMAQI
20th Aug 2025433 AMAQI
20th Aug 2025484 AMAQI

28°C25/32°C

20th Aug 2025485 AMAQI
20th Aug 2025476 AMAQI
20th Aug 2025487 AMAQI
20th Aug 2025488 AMAQI
20th Aug 2025389 AMAQI
20th Aug 20254510 AMAQI
20th Aug 20254411 AMAQI
20th Aug 20254212 PMAQI
20th Aug 2025391 PMAQI
20th Aug 2025342 PMAQI
20th Aug 2025303 PMAQI
20th Aug 2025354 PMAQI
20th Aug 2025225 PMAQI
20th Aug 2025226 PMAQI
20th Aug 2025287 PMAQI
20th Aug 2025368 PMAQI
20th Aug 2025359 PMAQI
20th Aug 20253210 PMAQI
20th Aug 20253611 PMAQI
21st Aug 20253712 AMAQI
21st Aug 2025441 AMAQI
21st Aug 2025462 AMAQI
21st Aug 2025473 AMAQI
21st Aug 2025464 AMAQI

28°C25/32°C

21st Aug 2025455 AMAQI
5 AM
21st Aug 2025466 AMAQI
21st Aug 2025457 AMAQI
21st Aug 2025468 AMAQI
21st Aug 2025189 AMAQI
21st Aug 20251710 AMAQI
21st Aug 20252411 AMAQI
21st Aug 20253012 PMAQI
12 PM
21st Aug 2025281 PMAQI
21st Aug 2025442 PMAQI
21st Aug 2025403 PMAQI
21st Aug 2025364 PMAQI
7 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
11 AM - 7 PM

37AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
9 AM

32AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 7 PM (Avg. 37), while the lowest AQI was between 9 AM to 9 AM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 11 PM

36AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM

36AQI

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. 36), while the lowest AQI was between 12 AM to 11 PM (Avg. 36).

2025 Days Vs Air Quality

Iwashita, Kumamoto, Japan

2025

79%

184

20%

47

0.4%

1

Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)

Good
184 Days
Moderate
47 Days
Poor
1 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 79%

Health Risk Level:

Low

In 2025, 79% of 233 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.

Annual Air Quality Insights

Iwashita, Kumamoto, Japan

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
33AQI
2nd January 2025
38AQI
3rd January 2025
35AQI
4th January 2025
36AQI
5th January 2025
34AQI
6th January 2025
44AQI
7th January 2025
30AQI
8th January 2025
39AQI
9th January 2025
29AQI
10th January 2025
31AQI
11th January 2025
30AQI
12th January 2025
34AQI
13th January 2025
44AQI
14th January 2025
44AQI
15th January 2025
49AQI
16th January 2025
42AQI
17th January 2025
48AQI
18th January 2025
50AQI
19th January 2025
56AQI
20th January 2025
51AQI
21st January 2025
73AQI
22nd January 2025
69AQI
23rd January 2025
70AQI
24th January 2025
74AQI
25th January 2025
52AQI
26th January 2025
45AQI
27th January 2025
39AQI
28th January 2025
36AQI
29th January 2025
32AQI
30th January 2025
36AQI
31st January 2025
43AQI
1st February 2025
40AQI
2nd February 2025
32AQI
3rd February 2025
45AQI
4th February 2025
31AQI
5th February 2025
40AQI
6th February 2025
31AQI
7th February 2025
35AQI
8th February 2025
29AQI
9th February 2025
31AQI
10th February 2025
30AQI
11th February 2025
41AQI
12th February 2025
38AQI
13th February 2025
34AQI
14th February 2025
39AQI
15th February 2025
31AQI
16th February 2025
35AQI
17th February 2025
43AQI
18th February 2025
32AQI
19th February 2025
37AQI
20th February 2025
34AQI
21st February 2025
34AQI
22nd February 2025
42AQI
23rd February 2025
37AQI
24th February 2025
39AQI
25th February 2025
35AQI
26th February 2025
36AQI
27th February 2025
65AQI
28th February 2025
49AQI
1st March 2025
53AQI
2nd March 2025
42AQI
3rd March 2025
39AQI
4th March 2025
29AQI
5th March 2025
26AQI
6th March 2025
31AQI
7th March 2025
32AQI
8th March 2025
42AQI
9th March 2025
44AQI
10th March 2025
48AQI
11th March 2025
39AQI
12th March 2025
45AQI
13th March 2025
52AQI
14th March 2025
44AQI
15th March 2025
34AQI
16th March 2025
29AQI
17th March 2025
50AQI
18th March 2025
40AQI
19th March 2025
40AQI
20th March 2025
49AQI
21st March 2025
53AQI
22nd March 2025
60AQI
23rd March 2025
59AQI
24th March 2025
46AQI
25th March 2025
60AQI
26th March 2025
60AQI
27th March 2025
52AQI
28th March 2025
58AQI
29th March 2025
55AQI
30th March 2025
44AQI
31st March 2025
45AQI
1st April 2025
43AQI
2nd April 2025
38AQI
3rd April 2025
39AQI
4th April 2025
40AQI
5th April 2025
45AQI
6th April 2025
46AQI
7th April 2025
41AQI
8th April 2025
41AQI
9th April 2025
54AQI
10th April 2025
43AQI
11th April 2025
57AQI
12th April 2025
54AQI
13th April 2025
50AQI
14th April 2025
56AQI
15th April 2025
35AQI
16th April 2025
51AQI
17th April 2025
45AQI
18th April 2025
51AQI
19th April 2025
53AQI
20th April 2025
43AQI
21st April 2025
47AQI
22nd April 2025
33AQI
23rd April 2025
29AQI
24th April 2025
34AQI
25th April 2025
46AQI
26th April 2025
48AQI
27th April 2025
52AQI
28th April 2025
42AQI
29th April 2025
50AQI
30th April 2025
51AQI
1st May 2025
48AQI
2nd May 2025
40AQI
3rd May 2025
44AQI
4th May 2025
40AQI
5th May 2025
44AQI
6th May 2025
32AQI
7th May 2025
38AQI
8th May 2025
46AQI
9th May 2025
31AQI
10th May 2025
40AQI
11th May 2025
43AQI
12th May 2025
52AQI
13th May 2025
55AQI
14th May 2025
60AQI
15th May 2025
57AQI
16th May 2025
64AQI
17th May 2025
36AQI
18th May 2025
48AQI
19th May 2025
52AQI
20th May 2025
43AQI
21st May 2025
32AQI
22nd May 2025
35AQI
23rd May 2025
46AQI
24th May 2025
30AQI
25th May 2025
32AQI
26th May 2025
37AQI
27th May 2025
43AQI
28th May 2025
48AQI
29th May 2025
39AQI
30th May 2025
41AQI
31st May 2025
39AQI
1st June 2025
50AQI
2nd June 2025
46AQI
3rd June 2025
29AQI
4th June 2025
43AQI
5th June 2025
45AQI
6th June 2025
53AQI
7th June 2025
61AQI
8th June 2025
59AQI
9th June 2025
31AQI
10th June 2025
29AQI
11th June 2025
34AQI
12th June 2025
34AQI
13th June 2025
44AQI
14th June 2025
27AQI
15th June 2025
28AQI
16th June 2025
28AQI
17th June 2025
29AQI
18th June 2025
34AQI
19th June 2025
36AQI
20th June 2025
38AQI
21st June 2025
32AQI
22nd June 2025
18AQI
23rd June 2025
17AQI
24th June 2025
24AQI
25th June 2025
27AQI
26th June 2025
25AQI
27th June 2025
28AQI
28th June 2025
32AQI
29th June 2025
42AQI
30th June 2025
54AQI
1st July 2025
72AQI
2nd July 2025
104AQI
3rd July 2025
93AQI
4th July 2025
93AQI
5th July 2025
75AQI
6th July 2025
58AQI
7th July 2025
58AQI
8th July 2025
63AQI
9th July 2025
68AQI
10th July 2025
49AQI
11th July 2025
42AQI
12th July 2025
41AQI
13th July 2025
39AQI
14th July 2025
36AQI
15th July 2025
38AQI
16th July 2025
54AQI
17th July 2025
53AQI
18th July 2025
34AQI
19th July 2025
33AQI
20th July 2025
31AQI
21st July 2025
29AQI
22nd July 2025
39AQI
23rd July 2025
36AQI
24th July 2025
25AQI
25th July 2025
23AQI
26th July 2025
21AQI
27th July 2025
21AQI
28th July 2025
22AQI
29th July 2025
24AQI
30th July 2025
24AQI
31st July 2025
27AQI
1st August 2025
42AQI
2nd August 2025
47AQI
3rd August 2025
48AQI
4th August 2025
45AQI
5th August 2025
45AQI
6th August 2025
46AQI
7th August 2025
41AQI
8th August 2025
38AQI
9th August 2025
32AQI
10th August 2025
37AQI
11th August 2025
30AQI
12th August 2025
35AQI
13th August 2025
37AQI
14th August 2025
38AQI
15th August 2025
42AQI
16th August 2025
42AQI
17th August 2025
43AQI
18th August 2025
48AQI
19th August 2025
49AQI
20th August 2025
42AQI

44AQI

37AQI

45AQI

45AQI

43AQI

36AQI

46AQI

41AQI

No. of days

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

202542AQI

24
7
27
1
21
10
21
9
25
6
26
4
20
10
1
20
184
47
1

Highest AQI recorded in

July

46AQI

Lowest AQI recorded in

June

36AQI

202437AQI

16
6
24
7
25
5
31
18
13
23
7
28
3
20
10
31
206
61

Highest AQI recorded in

January

65AQI

Lowest AQI recorded in

July

24AQI

202337AQI

25
6
22
6
26
5
19
11
24
7
22
8
28
3
28
3
24
6
29
2
25
4
26
4
298
65

Highest AQI recorded in

April

46AQI

Lowest AQI recorded in

August

27AQI

202240AQI

25
6
16
5
21
10
25
5
18
13
24
6
20
5
2
1
24
5
25
6
22
8
29
2
251
72

Highest AQI recorded in

May

47AQI

Lowest AQI recorded in

September

35AQI

202137AQI

26
5
27
1
21
8
18
3
23
8
20
10
28
3
30
1
27
3
25
6
19
11
29
2
293
61

Highest AQI recorded in

May

44AQI

Lowest AQI recorded in

August

24AQI

202039AQI

10
3
13
8
12
6
21
9
30
1
17
14
18
1
22
9
25
5
22
9
190
65

Highest AQI recorded in

August

47AQI

Lowest AQI recorded in

July

24AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
42AQI
Least Polluted Year Recorded
2021(Avg.)
37AQI

Iwashita's annual 2025 AQI (42) shows an average percentage change of 10.9% (worsened AQI) compared to previous years: 2020 (39), 2021 (37), 2022 (40), 2023 (37), 2024 (37).