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HistoryAQIPM2.5PM10COSO2NO2O3

Honmachi, 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+

September Air Quality Analysis

Honmachi, Kumamoto, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
7th Sep 2024
89AQI
Lowest AQI recorded on
19th Sep 2022
21AQI

Same Day Analysis (29th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 35 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 30th Sep - 1st Oct 2025

Honmachi, Kumamoto, Japan

AQI
Day
Night
.

6 AM30th Sep 2025

6 PM

5 AM1st Oct 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
12AM1st Oct

57AQI

Avg. Lowest Time
2AM1st Oct

35AQI

In the last 24 hours,

Honmachi's AQI reached its highest point of 57 at 12 AM during the Night, while the lowest point, 35, was recorded at 2 AM during the Night between 30th Sep and 1st Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Honmachi, Kumamoto, Japan

SepOct
01st - 02nd02nd - 03rd03rd - 04th04th - 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 - 01st01st
Day
Night
1st Sep 2025476 AMAQI
1st Sep 2025467 AMAQI
1st Sep 2025488 AMAQI
1st Sep 2025239 AMAQI
1st Sep 20252510 AMAQI
1st Sep 20253111 AMAQI
1st Sep 20253812 PMAQI
1st Sep 2025381 PMAQI
1st Sep 2025282 PMAQI
1st Sep 2025313 PMAQI
1st Sep 2025314 PMAQI
1st Sep 2025365 PMAQI
1st Sep 2025336 PMAQI
1st Sep 2025337 PMAQI
1st Sep 2025298 PMAQI
1st Sep 2025329 PMAQI
1st Sep 20253110 PMAQI
1st Sep 20253211 PMAQI
2nd Sep 20253212 AMAQI
2nd Sep 2025391 AMAQI
2nd Sep 2025442 AMAQI
2nd Sep 2025433 AMAQI
2nd Sep 2025414 AMAQI
2nd Sep 2025405 AMAQI

27°C25/30°C

2nd Sep 2025386 AMAQI
2nd Sep 2025407 AMAQI
2nd Sep 2025428 AMAQI
2nd Sep 2025389 AMAQI
2nd Sep 20253010 AMAQI
2nd Sep 20252611 AMAQI
2nd Sep 20251712 PMAQI
2nd Sep 2025161 PMAQI
2nd Sep 2025262 PMAQI
2nd Sep 2025313 PMAQI
2nd Sep 2025304 PMAQI
2nd Sep 2025405 PMAQI
2nd Sep 2025476 PMAQI
2nd Sep 2025427 PMAQI
2nd Sep 2025378 PMAQI
2nd Sep 2025389 PMAQI
2nd Sep 20254110 PMAQI
2nd Sep 20253511 PMAQI
3rd Sep 20253412 AMAQI
3rd Sep 2025391 AMAQI
3rd Sep 2025412 AMAQI
3rd Sep 2025413 AMAQI
3rd Sep 2025394 AMAQI
3rd Sep 2025395 AMAQI

28°C25/31°C

3rd Sep 2025386 AMAQI
3rd Sep 2025377 AMAQI
3rd Sep 2025378 AMAQI
3rd Sep 2025379 AMAQI
3rd Sep 20254410 AMAQI
3rd Sep 20255011 AMAQI
3rd Sep 20255012 PMAQI
3rd Sep 2025481 PMAQI
3rd Sep 2025402 PMAQI
3rd Sep 2025283 PMAQI
3rd Sep 2025324 PMAQI
3rd Sep 2025475 PMAQI
3rd Sep 2025446 PMAQI
3rd Sep 2025407 PMAQI
3rd Sep 2025338 PMAQI
3rd Sep 2025369 PMAQI
3rd Sep 20253210 PMAQI
3rd Sep 20253111 PMAQI
4th Sep 20253212 AMAQI
4th Sep 2025381 AMAQI
4th Sep 2025422 AMAQI
4th Sep 2025413 AMAQI
4th Sep 2025404 AMAQI
4th Sep 2025385 AMAQI

28°C26/32°C

4th Sep 2025396 AMAQI
4th Sep 2025387 AMAQI
4th Sep 2025408 AMAQI
4th Sep 2025149 AMAQI
4th Sep 20252310 AMAQI
4th Sep 20251811 AMAQI
4th Sep 20252512 PMAQI
4th Sep 2025281 PMAQI
4th Sep 2025332 PMAQI
4th Sep 2025193 PMAQI
4th Sep 2025184 PMAQI
4th Sep 2025295 PMAQI
4th Sep 2025266 PMAQI
4th Sep 2025327 PMAQI
4th Sep 2025228 PMAQI
4th Sep 2025209 PMAQI
4th Sep 20251710 PMAQI
4th Sep 20251211 PMAQI
5th Sep 20251212 AMAQI
5th Sep 2025231 AMAQI
5th Sep 2025382 AMAQI
5th Sep 2025373 AMAQI
5th Sep 2025354 AMAQI
5th Sep 2025365 AMAQI

25°C25/26°C

5th Sep 2025346 AMAQI
5th Sep 2025357 AMAQI
5th Sep 2025358 AMAQI
5th Sep 2025189 AMAQI
5th Sep 20252210 AMAQI
5th Sep 20252511 AMAQI
5th Sep 20253312 PMAQI
5th Sep 2025291 PMAQI
5th Sep 2025272 PMAQI
5th Sep 2025383 PMAQI
5th Sep 2025454 PMAQI
5th Sep 2025445 PMAQI
5th Sep 2025376 PMAQI
5th Sep 2025317 PMAQI
5th Sep 2025248 PMAQI
5th Sep 2025279 PMAQI
5th Sep 20252210 PMAQI
5th Sep 20252511 PMAQI
6th Sep 20252512 AMAQI
6th Sep 2025251 AMAQI
6th Sep 2025232 AMAQI
6th Sep 2025243 AMAQI
6th Sep 2025254 AMAQI
6th Sep 2025275 AMAQI

28°C25/31°C

6th Sep 2025276 AMAQI
6th Sep 2025267 AMAQI
6th Sep 2025278 AMAQI
6th Sep 2025249 AMAQI
6th Sep 20253210 AMAQI
6th Sep 20254211 AMAQI
6th Sep 20253812 PMAQI
6th Sep 2025401 PMAQI
6th Sep 2025392 PMAQI
6th Sep 2025403 PMAQI
6th Sep 2025384 PMAQI
6th Sep 2025385 PMAQI
6th Sep 2025316 PMAQI
6th Sep 2025287 PMAQI
6th Sep 2025298 PMAQI
6th Sep 2025269 PMAQI
6th Sep 20252610 PMAQI
6th Sep 20252511 PMAQI
7th Sep 20252612 AMAQI
7th Sep 2025261 AMAQI
7th Sep 2025242 AMAQI
7th Sep 2025253 AMAQI
7th Sep 2025284 AMAQI
7th Sep 2025295 AMAQI

28°C26/31°C

7th Sep 2025296 AMAQI
7th Sep 2025307 AMAQI
7th Sep 2025308 AMAQI
7th Sep 2025289 AMAQI
7th Sep 20252610 AMAQI
7th Sep 20253111 AMAQI
7th Sep 20253612 PMAQI
7th Sep 2025321 PMAQI
7th Sep 2025432 PMAQI
7th Sep 2025473 PMAQI
7th Sep 2025474 PMAQI
7th Sep 2025495 PMAQI
7th Sep 2025436 PMAQI
7th Sep 2025447 PMAQI
7th Sep 2025418 PMAQI
7th Sep 2025329 PMAQI
7th Sep 20253010 PMAQI
7th Sep 20253211 PMAQI
8th Sep 20253212 AMAQI
8th Sep 2025281 AMAQI
8th Sep 2025282 AMAQI
8th Sep 2025273 AMAQI
8th Sep 2025284 AMAQI
8th Sep 2025285 AMAQI

28°C25/31°C

8th Sep 2025286 AMAQI
8th Sep 2025297 AMAQI
8th Sep 2025288 AMAQI
8th Sep 2025299 AMAQI
8th Sep 20252810 AMAQI
8th Sep 20251511 AMAQI
8th Sep 20252312 PMAQI
8th Sep 2025161 PMAQI
8th Sep 2025242 PMAQI
8th Sep 2025293 PMAQI
8th Sep 2025304 PMAQI
8th Sep 2025265 PMAQI
8th Sep 2025246 PMAQI
8th Sep 2025267 PMAQI
8th Sep 2025268 PMAQI
8th Sep 2025269 PMAQI
8th Sep 20252110 PMAQI
8th Sep 20252411 PMAQI
9th Sep 20252212 AMAQI
9th Sep 2025281 AMAQI
9th Sep 2025302 AMAQI
9th Sep 2025313 AMAQI
9th Sep 2025294 AMAQI
9th Sep 2025295 AMAQI

28°C26/31°C

9th Sep 2025306 AMAQI
9th Sep 2025307 AMAQI
9th Sep 2025298 AMAQI
9th Sep 2025199 AMAQI
9th Sep 20252010 AMAQI
9th Sep 20251811 AMAQI
9th Sep 20252912 PMAQI
9th Sep 2025291 PMAQI
9th Sep 2025202 PMAQI
9th Sep 2025273 PMAQI
9th Sep 2025194 PMAQI
9th Sep 2025195 PMAQI
9th Sep 2025186 PMAQI
9th Sep 2025237 PMAQI
9th Sep 2025228 PMAQI
9th Sep 2025229 PMAQI
9th Sep 20252310 PMAQI
9th Sep 20252211 PMAQI
10th Sep 20252912 AMAQI
10th Sep 2025291 AMAQI
10th Sep 2025302 AMAQI
10th Sep 2025303 AMAQI
10th Sep 2025304 AMAQI
10th Sep 2025285 AMAQI

28°C26/31°C

10th Sep 2025296 AMAQI
10th Sep 2025287 AMAQI
10th Sep 2025288 AMAQI
10th Sep 2025179 AMAQI
10th Sep 20252310 AMAQI
10th Sep 20251511 AMAQI
10th Sep 20251812 PMAQI
10th Sep 2025191 PMAQI
10th Sep 2025232 PMAQI
10th Sep 2025243 PMAQI
10th Sep 2025204 PMAQI
10th Sep 2025215 PMAQI
10th Sep 2025236 PMAQI
10th Sep 2025267 PMAQI
10th Sep 2025248 PMAQI
10th Sep 2025279 PMAQI
10th Sep 20253010 PMAQI
10th Sep 20252611 PMAQI
11th Sep 20252612 AMAQI
11th Sep 2025331 AMAQI
11th Sep 2025312 AMAQI
11th Sep 2025333 AMAQI
11th Sep 2025304 AMAQI
11th Sep 2025295 AMAQI

26°C25/28°C

11th Sep 2025296 AMAQI
11th Sep 2025307 AMAQI
11th Sep 2025298 AMAQI
11th Sep 2025169 AMAQI
11th Sep 20252510 AMAQI
11th Sep 20252211 AMAQI
11th Sep 20253112 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025352 PMAQI
11th Sep 2025383 PMAQI
11th Sep 2025424 PMAQI
11th Sep 2025415 PMAQI
11th Sep 2025496 PMAQI
11th Sep 2025437 PMAQI
11th Sep 2025358 PMAQI
11th Sep 2025349 PMAQI
11th Sep 20253410 PMAQI
11th Sep 20253011 PMAQI
12th Sep 20252912 AMAQI
12th Sep 2025291 AMAQI
12th Sep 2025312 AMAQI
12th Sep 2025313 AMAQI
12th Sep 2025314 AMAQI
12th Sep 2025305 AMAQI

27°C24/30°C

12th Sep 2025316 AMAQI
12th Sep 2025307 AMAQI
12th Sep 2025308 AMAQI
12th Sep 2025319 AMAQI
12th Sep 20252610 AMAQI
12th Sep 20253111 AMAQI
12th Sep 20253112 PMAQI
12th Sep 2025271 PMAQI
12th Sep 2025302 PMAQI
12th Sep 2025333 PMAQI
12th Sep 2025444 PMAQI
12th Sep 2025435 PMAQI
12th Sep 2025406 PMAQI
12th Sep 2025377 PMAQI
12th Sep 2025408 PMAQI
12th Sep 2025329 PMAQI
12th Sep 20253410 PMAQI
12th Sep 20252911 PMAQI
13th Sep 20252712 AMAQI
13th Sep 2025321 AMAQI
13th Sep 2025312 AMAQI
13th Sep 2025313 AMAQI
13th Sep 2025314 AMAQI
13th Sep 2025305 AMAQI

27°C24/31°C

13th Sep 2025316 AMAQI
13th Sep 2025317 AMAQI
13th Sep 2025318 AMAQI
13th Sep 2025309 AMAQI
13th Sep 20253110 AMAQI
13th Sep 20254011 AMAQI
13th Sep 20252812 PMAQI
13th Sep 2025341 PMAQI
13th Sep 2025282 PMAQI
13th Sep 2025333 PMAQI
13th Sep 2025244 PMAQI
13th Sep 2025235 PMAQI
13th Sep 2025256 PMAQI
13th Sep 2025327 PMAQI
13th Sep 2025258 PMAQI
13th Sep 2025269 PMAQI
13th Sep 20252910 PMAQI
13th Sep 20252811 PMAQI
14th Sep 20252812 AMAQI
14th Sep 2025311 AMAQI
14th Sep 2025312 AMAQI
14th Sep 2025323 AMAQI
14th Sep 2025324 AMAQI
14th Sep 2025325 AMAQI

27°C25/30°C

14th Sep 2025326 AMAQI
14th Sep 2025327 AMAQI
14th Sep 2025328 AMAQI
14th Sep 2025269 AMAQI
14th Sep 20252110 AMAQI
14th Sep 20251711 AMAQI
14th Sep 20252612 PMAQI
14th Sep 2025211 PMAQI
14th Sep 2025182 PMAQI
14th Sep 2025233 PMAQI
14th Sep 2025244 PMAQI
14th Sep 2025255 PMAQI
14th Sep 2025266 PMAQI
14th Sep 2025267 PMAQI
14th Sep 2025348 PMAQI
14th Sep 2025329 PMAQI
14th Sep 20252810 PMAQI
14th Sep 20253011 PMAQI
15th Sep 20252812 AMAQI
15th Sep 2025321 AMAQI
15th Sep 2025322 AMAQI
15th Sep 2025333 AMAQI
15th Sep 2025314 AMAQI
15th Sep 2025315 AMAQI

27°C25/30°C

15th Sep 2025306 AMAQI
15th Sep 2025307 AMAQI
15th Sep 2025308 AMAQI
15th Sep 2025219 AMAQI
15th Sep 20252010 AMAQI
15th Sep 20252511 AMAQI
15th Sep 20253612 PMAQI
15th Sep 2025331 PMAQI
15th Sep 2025202 PMAQI
15th Sep 2025233 PMAQI
15th Sep 2025234 PMAQI
15th Sep 2025245 PMAQI
15th Sep 2025236 PMAQI
15th Sep 2025287 PMAQI
15th Sep 2025288 PMAQI
15th Sep 2025289 PMAQI
15th Sep 20252710 PMAQI
15th Sep 20252511 PMAQI
16th Sep 20252812 AMAQI
16th Sep 2025311 AMAQI
16th Sep 2025312 AMAQI
16th Sep 2025313 AMAQI
16th Sep 2025304 AMAQI
16th Sep 2025305 AMAQI

28°C25/31°C

16th Sep 2025296 AMAQI
16th Sep 2025307 AMAQI
16th Sep 2025308 AMAQI
16th Sep 2025309 AMAQI
16th Sep 20253710 AMAQI
16th Sep 20253811 AMAQI
16th Sep 20254412 PMAQI
16th Sep 2025471 PMAQI
16th Sep 2025372 PMAQI
16th Sep 2025343 PMAQI
16th Sep 2025334 PMAQI
16th Sep 2025355 PMAQI
16th Sep 2025316 PMAQI
16th Sep 2025267 PMAQI
16th Sep 2025248 PMAQI
16th Sep 2025239 PMAQI
16th Sep 20252410 PMAQI
16th Sep 20252411 PMAQI
17th Sep 20252612 AMAQI
17th Sep 2025311 AMAQI
17th Sep 2025302 AMAQI
17th Sep 2025313 AMAQI
17th Sep 2025304 AMAQI
17th Sep 2025315 AMAQI

28°C26/31°C

17th Sep 2025316 AMAQI
17th Sep 2025317 AMAQI
17th Sep 2025328 AMAQI
17th Sep 2025319 AMAQI
17th Sep 20253110 AMAQI
17th Sep 20252311 AMAQI
17th Sep 20251712 PMAQI
17th Sep 2025201 PMAQI
17th Sep 2025172 PMAQI
17th Sep 2025223 PMAQI
17th Sep 2025284 PMAQI
17th Sep 2025225 PMAQI
17th Sep 2025276 PMAQI
17th Sep 2025257 PMAQI
17th Sep 2025298 PMAQI
17th Sep 2025279 PMAQI
17th Sep 20252310 PMAQI
17th Sep 20252311 PMAQI
18th Sep 20252212 AMAQI
18th Sep 2025251 AMAQI
18th Sep 2025282 AMAQI
18th Sep 2025303 AMAQI
18th Sep 2025284 AMAQI
18th Sep 2025285 AMAQI

27°C26/29°C

18th Sep 2025286 AMAQI
18th Sep 2025297 AMAQI
18th Sep 2025288 AMAQI
18th Sep 2025179 AMAQI
18th Sep 20251510 AMAQI
18th Sep 20251511 AMAQI
18th Sep 20251512 PMAQI
18th Sep 2025191 PMAQI
18th Sep 2025192 PMAQI
18th Sep 2025203 PMAQI
18th Sep 2025184 PMAQI
18th Sep 2025195 PMAQI
18th Sep 2025236 PMAQI
18th Sep 2025207 PMAQI
18th Sep 2025248 PMAQI
18th Sep 2025259 PMAQI
18th Sep 20252810 PMAQI
18th Sep 20253211 PMAQI
19th Sep 20253012 AMAQI
19th Sep 2025271 AMAQI
19th Sep 2025262 AMAQI
19th Sep 2025273 AMAQI
19th Sep 2025264 AMAQI
19th Sep 2025255 AMAQI

27°C24/29°C

19th Sep 2025256 AMAQI
19th Sep 2025257 AMAQI
19th Sep 2025258 AMAQI
19th Sep 2025299 AMAQI
19th Sep 20252810 AMAQI
19th Sep 20252811 AMAQI
19th Sep 20253012 PMAQI
19th Sep 2025351 PMAQI
19th Sep 2025322 PMAQI
19th Sep 2025313 PMAQI
19th Sep 2025314 PMAQI
19th Sep 2025335 PMAQI
19th Sep 2025326 PMAQI
19th Sep 2025307 PMAQI
19th Sep 2025328 PMAQI
19th Sep 2025299 PMAQI
19th Sep 20253010 PMAQI
19th Sep 20253211 PMAQI
20th Sep 20252912 AMAQI
20th Sep 2025281 AMAQI
20th Sep 2025272 AMAQI
20th Sep 2025273 AMAQI
20th Sep 2025274 AMAQI
20th Sep 2025275 AMAQI

26°C24/29°C

20th Sep 2025286 AMAQI
20th Sep 2025277 AMAQI
20th Sep 2025288 AMAQI
20th Sep 2025519 AMAQI
20th Sep 20255910 AMAQI
20th Sep 20255211 AMAQI
20th Sep 20254812 PMAQI
20th Sep 2025401 PMAQI
20th Sep 2025312 PMAQI
20th Sep 2025253 PMAQI
20th Sep 2025184 PMAQI
20th Sep 2025175 PMAQI
20th Sep 2025216 PMAQI
20th Sep 2025227 PMAQI
20th Sep 2025268 PMAQI
20th Sep 2025249 PMAQI
20th Sep 20252310 PMAQI
20th Sep 20252311 PMAQI
21st Sep 20252312 AMAQI
21st Sep 2025241 AMAQI
21st Sep 2025282 AMAQI
21st Sep 2025273 AMAQI
21st Sep 2025294 AMAQI
21st Sep 2025315 AMAQI

26°C24/28°C

21st Sep 2025316 AMAQI
21st Sep 2025307 AMAQI
21st Sep 2025308 AMAQI
21st Sep 2025219 AMAQI
21st Sep 20251710 AMAQI
21st Sep 20251811 AMAQI
21st Sep 20251912 PMAQI
21st Sep 2025191 PMAQI
21st Sep 2025212 PMAQI
21st Sep 2025203 PMAQI
21st Sep 2025214 PMAQI
21st Sep 2025235 PMAQI
21st Sep 2025226 PMAQI
21st Sep 2025237 PMAQI
21st Sep 2025258 PMAQI
21st Sep 2025289 PMAQI
21st Sep 20252910 PMAQI
21st Sep 20252611 PMAQI
22nd Sep 20252712 AMAQI
22nd Sep 2025271 AMAQI
22nd Sep 2025282 AMAQI
22nd Sep 2025283 AMAQI
22nd Sep 2025284 AMAQI
22nd Sep 2025275 AMAQI

26°C24/28°C

22nd Sep 2025276 AMAQI
22nd Sep 2025277 AMAQI
22nd Sep 2025268 AMAQI
22nd Sep 2025309 AMAQI
22nd Sep 20253510 AMAQI
22nd Sep 20254111 AMAQI
22nd Sep 20255012 PMAQI
22nd Sep 2025491 PMAQI
22nd Sep 2025482 PMAQI
22nd Sep 2025513 PMAQI
22nd Sep 2025504 PMAQI
22nd Sep 2025505 PMAQI
22nd Sep 2025496 PMAQI
22nd Sep 2025377 PMAQI
22nd Sep 2025318 PMAQI
22nd Sep 2025279 PMAQI
22nd Sep 20253010 PMAQI
22nd Sep 20252811 PMAQI
23rd Sep 20252912 AMAQI
23rd Sep 2025281 AMAQI
23rd Sep 2025282 AMAQI
23rd Sep 2025273 AMAQI
23rd Sep 2025284 AMAQI
23rd Sep 2025305 AMAQI

25°C24/27°C

23rd Sep 2025306 AMAQI
23rd Sep 2025307 AMAQI
23rd Sep 2025298 AMAQI
23rd Sep 2025269 AMAQI
23rd Sep 20252510 AMAQI
23rd Sep 20253011 AMAQI
23rd Sep 20253212 PMAQI
23rd Sep 2025321 PMAQI
23rd Sep 2025362 PMAQI
23rd Sep 2025333 PMAQI
23rd Sep 2025354 PMAQI
23rd Sep 2025345 PMAQI
23rd Sep 2025306 PMAQI
23rd Sep 2025327 PMAQI
23rd Sep 2025318 PMAQI
23rd Sep 2025289 PMAQI
23rd Sep 20252810 PMAQI
23rd Sep 20252611 PMAQI
24th Sep 20252512 AMAQI
24th Sep 2025281 AMAQI
24th Sep 2025292 AMAQI
24th Sep 2025283 AMAQI
24th Sep 2025274 AMAQI
24th Sep 2025285 AMAQI

26°C24/28°C

24th Sep 2025286 AMAQI
24th Sep 2025287 AMAQI
24th Sep 2025288 AMAQI
24th Sep 2025299 AMAQI
24th Sep 20253210 AMAQI
24th Sep 20253411 AMAQI
24th Sep 20253912 PMAQI
24th Sep 2025411 PMAQI
24th Sep 2025332 PMAQI
24th Sep 2025283 PMAQI
24th Sep 2025264 PMAQI
24th Sep 2025245 PMAQI
24th Sep 2025206 PMAQI
24th Sep 2025197 PMAQI
24th Sep 2025238 PMAQI
24th Sep 2025269 PMAQI
24th Sep 20252410 PMAQI
24th Sep 20252411 PMAQI
25th Sep 20252412 AMAQI
25th Sep 2025251 AMAQI
25th Sep 2025272 AMAQI
25th Sep 2025273 AMAQI
25th Sep 2025274 AMAQI
25th Sep 2025285 AMAQI

26°C24/30°C

25th Sep 2025286 AMAQI
25th Sep 2025287 AMAQI
25th Sep 2025288 AMAQI
25th Sep 2025189 AMAQI
25th Sep 20251610 AMAQI
25th Sep 20252411 AMAQI
25th Sep 20252312 PMAQI
25th Sep 2025291 PMAQI
25th Sep 2025372 PMAQI
25th Sep 2025503 PMAQI
25th Sep 2025584 PMAQI
25th Sep 2025565 PMAQI
25th Sep 2025526 PMAQI
25th Sep 2025447 PMAQI
25th Sep 2025368 PMAQI
25th Sep 2025319 PMAQI
25th Sep 20253010 PMAQI
25th Sep 20253111 PMAQI
26th Sep 20253812 AMAQI
26th Sep 2025411 AMAQI
26th Sep 2025432 AMAQI
26th Sep 2025323 AMAQI
26th Sep 2025384 AMAQI
26th Sep 2025465 AMAQI

26°C24/28°C

26th Sep 2025496 AMAQI
26th Sep 2025527 AMAQI
26th Sep 2025558 AMAQI
26th Sep 2025559 AMAQI
26th Sep 20255410 AMAQI
26th Sep 20255811 AMAQI
26th Sep 20256412 PMAQI
26th Sep 2025591 PMAQI
26th Sep 2025532 PMAQI
26th Sep 2025553 PMAQI
26th Sep 2025464 PMAQI
26th Sep 2025385 PMAQI
26th Sep 2025426 PMAQI
26th Sep 2025447 PMAQI
26th Sep 2025458 PMAQI
26th Sep 2025469 PMAQI
26th Sep 20254910 PMAQI
26th Sep 20254511 PMAQI
27th Sep 20254512 AMAQI
27th Sep 2025421 AMAQI
27th Sep 2025422 AMAQI
27th Sep 2025393 AMAQI
27th Sep 2025384 AMAQI
27th Sep 2025355 AMAQI

26°C24/29°C

27th Sep 2025366 AMAQI
27th Sep 2025377 AMAQI
27th Sep 2025388 AMAQI
27th Sep 2025369 AMAQI
27th Sep 20253910 AMAQI
27th Sep 20253411 AMAQI
27th Sep 20253412 PMAQI
27th Sep 2025321 PMAQI
27th Sep 2025262 PMAQI
27th Sep 2025333 PMAQI
27th Sep 2025294 PMAQI
27th Sep 2025285 PMAQI
27th Sep 2025336 PMAQI
27th Sep 2025307 PMAQI
27th Sep 2025318 PMAQI
27th Sep 2025329 PMAQI
27th Sep 20253110 PMAQI
27th Sep 20252911 PMAQI
28th Sep 20252812 AMAQI
28th Sep 2025221 AMAQI
28th Sep 2025212 AMAQI
28th Sep 2025213 AMAQI
28th Sep 2025194 AMAQI
28th Sep 2025165 AMAQI

24°C22/27°C

28th Sep 2025176 AMAQI
28th Sep 2025187 AMAQI
28th Sep 2025208 AMAQI
28th Sep 2025269 AMAQI
28th Sep 20253510 AMAQI
28th Sep 20253611 AMAQI
28th Sep 20253212 PMAQI
28th Sep 2025281 PMAQI
28th Sep 2025282 PMAQI
28th Sep 2025283 PMAQI
28th Sep 2025284 PMAQI
28th Sep 2025285 PMAQI
28th Sep 2025266 PMAQI
28th Sep 2025287 PMAQI
28th Sep 2025318 PMAQI
28th Sep 2025329 PMAQI
28th Sep 20254110 PMAQI
28th Sep 20254311 PMAQI
29th Sep 20254112 AMAQI
29th Sep 2025371 AMAQI
29th Sep 2025362 AMAQI
29th Sep 2025443 AMAQI
29th Sep 2025444 AMAQI
29th Sep 2025375 AMAQI

25°C23/27°C

29th Sep 2025286 AMAQI
29th Sep 2025257 AMAQI
29th Sep 2025268 AMAQI
29th Sep 2025259 AMAQI
29th Sep 20253110 AMAQI
29th Sep 20252611 AMAQI
29th Sep 20253012 PMAQI
29th Sep 2025271 PMAQI
29th Sep 2025192 PMAQI
29th Sep 2025253 PMAQI
29th Sep 2025244 PMAQI
29th Sep 2025305 PMAQI
29th Sep 2025386 PMAQI
29th Sep 2025377 PMAQI
29th Sep 2025448 PMAQI
29th Sep 2025499 PMAQI
29th Sep 20253810 PMAQI
29th Sep 20254911 PMAQI
30th Sep 20254912 AMAQI
30th Sep 2025501 AMAQI
30th Sep 2025462 AMAQI
30th Sep 2025323 AMAQI
30th Sep 2025534 AMAQI
30th Sep 2025465 AMAQI

25°C23/27°C

30th Sep 2025426 AMAQI
30th Sep 2025357 AMAQI
30th Sep 2025568 AMAQI
30th Sep 2025489 AMAQI
30th Sep 20254910 AMAQI
30th Sep 20254911 AMAQI
30th Sep 20254612 PMAQI
30th Sep 2025471 PMAQI
30th Sep 2025462 PMAQI
30th Sep 2025463 PMAQI
30th Sep 2025394 PMAQI
30th Sep 2025455 PMAQI
30th Sep 2025486 PMAQI
30th Sep 2025557 PMAQI
30th Sep 2025418 PMAQI
30th Sep 2025529 PMAQI
30th Sep 20255510 PMAQI
30th Sep 20255511 PMAQI
1st Oct 20255712 AMAQI
1st Oct 2025541 AMAQI
1st Oct 2025352 AMAQI
1st Oct 2025493 AMAQI
1st Oct 2025534 AMAQI
1st Oct 2025555 AMAQI

--°C/°C

1st Oct 2025546 AMAQI
6 AM
12 PM
6 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
8 AM

33AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
9 AM

28AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 8 AM (Avg. 33), while the lowest AQI was between 9 AM to 9 AM (Avg. 28).
Night time
Avg. Highest Time
4 AM - 5 AM

33AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM

30AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 5 AM (Avg. 33), while the lowest AQI was between 12 AM to 12 AM (Avg. 30).

2025 Days Vs Air Quality

Honmachi, Kumamoto, Japan

2025

68%

184

32%

88

Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)

Good
184 Days
Moderate
88 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 68%

Health Risk Level:

Moderate

In 2025, 68% of 273 days were within WHO’s safe air quality limits, and 32% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.

Annual Air Quality Insights

Honmachi, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
37AQI
2nd January 2025
48AQI
3rd January 2025
43AQI
4th January 2025
38AQI
5th January 2025
38AQI
6th January 2025
44AQI
7th January 2025
32AQI
8th January 2025
38AQI
9th January 2025
30AQI
10th January 2025
32AQI
11th January 2025
29AQI
12th January 2025
36AQI
13th January 2025
44AQI
14th January 2025
46AQI
15th January 2025
49AQI
16th January 2025
42AQI
17th January 2025
49AQI
18th January 2025
50AQI
19th January 2025
57AQI
20th January 2025
50AQI
21st January 2025
72AQI
22nd January 2025
72AQI
23rd January 2025
71AQI
24th January 2025
71AQI
25th January 2025
54AQI
26th January 2025
45AQI
27th January 2025
39AQI
28th January 2025
36AQI
29th January 2025
33AQI
30th January 2025
36AQI
31st January 2025
43AQI
1st February 2025
41AQI
2nd February 2025
34AQI
3rd February 2025
47AQI
4th February 2025
32AQI
5th February 2025
39AQI
6th February 2025
32AQI
7th February 2025
34AQI
8th February 2025
31AQI
9th February 2025
32AQI
10th February 2025
31AQI
11th February 2025
41AQI
12th February 2025
40AQI
13th February 2025
35AQI
14th February 2025
40AQI
15th February 2025
32AQI
16th February 2025
37AQI
17th February 2025
46AQI
18th February 2025
35AQI
19th February 2025
39AQI
20th February 2025
36AQI
21st February 2025
38AQI
22nd February 2025
43AQI
23rd February 2025
38AQI
24th February 2025
42AQI
25th February 2025
37AQI
26th February 2025
39AQI
27th February 2025
64AQI
28th February 2025
50AQI
1st March 2025
53AQI
2nd March 2025
46AQI
3rd March 2025
41AQI
4th March 2025
32AQI
5th March 2025
32AQI
6th March 2025
33AQI
7th March 2025
36AQI
8th March 2025
43AQI
9th March 2025
45AQI
10th March 2025
51AQI
11th March 2025
42AQI
12th March 2025
49AQI
13th March 2025
55AQI
14th March 2025
48AQI
15th March 2025
37AQI
16th March 2025
33AQI
17th March 2025
50AQI
18th March 2025
44AQI
19th March 2025
38AQI
20th March 2025
50AQI
21st March 2025
52AQI
22nd March 2025
62AQI
23rd March 2025
59AQI
24th March 2025
45AQI
25th March 2025
62AQI
26th March 2025
64AQI
27th March 2025
63AQI
28th March 2025
66AQI
29th March 2025
63AQI
30th March 2025
60AQI
31st March 2025
61AQI
1st April 2025
61AQI
2nd April 2025
54AQI
3rd April 2025
55AQI
4th April 2025
54AQI
5th April 2025
57AQI
6th April 2025
57AQI
7th April 2025
54AQI
8th April 2025
53AQI
9th April 2025
61AQI
10th April 2025
57AQI
11th April 2025
62AQI
12th April 2025
63AQI
13th April 2025
58AQI
14th April 2025
63AQI
15th April 2025
49AQI
16th April 2025
59AQI
17th April 2025
56AQI
18th April 2025
58AQI
19th April 2025
58AQI
20th April 2025
53AQI
21st April 2025
57AQI
22nd April 2025
49AQI
23rd April 2025
45AQI
24th April 2025
50AQI
25th April 2025
58AQI
26th April 2025
58AQI
27th April 2025
58AQI
28th April 2025
55AQI
29th April 2025
57AQI
30th April 2025
60AQI
1st May 2025
55AQI
2nd May 2025
51AQI
3rd May 2025
51AQI
4th May 2025
50AQI
5th May 2025
51AQI
6th May 2025
47AQI
7th May 2025
49AQI
8th May 2025
57AQI
9th May 2025
46AQI
10th May 2025
51AQI
11th May 2025
54AQI
12th May 2025
59AQI
13th May 2025
60AQI
14th May 2025
62AQI
15th May 2025
61AQI
16th May 2025
64AQI
17th May 2025
48AQI
18th May 2025
54AQI
19th May 2025
58AQI
20th May 2025
51AQI
21st May 2025
44AQI
22nd May 2025
47AQI
23rd May 2025
55AQI
24th May 2025
47AQI
25th May 2025
47AQI
26th May 2025
49AQI
27th May 2025
52AQI
28th May 2025
56AQI
29th May 2025
56AQI
30th May 2025
52AQI
31st May 2025
54AQI
1st June 2025
55AQI
2nd June 2025
58AQI
3rd June 2025
44AQI
4th June 2025
55AQI
5th June 2025
55AQI
6th June 2025
58AQI
7th June 2025
63AQI
8th June 2025
67AQI
9th June 2025
44AQI
10th June 2025
41AQI
11th June 2025
46AQI
12th June 2025
49AQI
13th June 2025
55AQI
14th June 2025
46AQI
15th June 2025
45AQI
16th June 2025
45AQI
17th June 2025
43AQI
18th June 2025
42AQI
19th June 2025
41AQI
20th June 2025
38AQI
21st June 2025
35AQI
22nd June 2025
21AQI
23rd June 2025
21AQI
24th June 2025
29AQI
25th June 2025
29AQI
26th June 2025
28AQI
27th June 2025
31AQI
28th June 2025
32AQI
29th June 2025
38AQI
30th June 2025
49AQI
1st July 2025
68AQI
2nd July 2025
95AQI
3rd July 2025
92AQI
4th July 2025
93AQI
5th July 2025
74AQI
6th July 2025
62AQI
7th July 2025
57AQI
8th July 2025
62AQI
9th July 2025
66AQI
10th July 2025
58AQI
11th July 2025
46AQI
12th July 2025
43AQI
13th July 2025
42AQI
14th July 2025
39AQI
15th July 2025
46AQI
16th July 2025
56AQI
17th July 2025
52AQI
18th July 2025
37AQI
19th July 2025
37AQI
20th July 2025
34AQI
21st July 2025
33AQI
22nd July 2025
40AQI
23rd July 2025
42AQI
24th July 2025
32AQI
25th July 2025
26AQI
26th July 2025
24AQI
27th July 2025
23AQI
28th July 2025
24AQI
29th July 2025
25AQI
30th July 2025
30AQI
31st July 2025
29AQI
1st August 2025
43AQI
2nd August 2025
46AQI
3rd August 2025
46AQI
4th August 2025
41AQI
5th August 2025
42AQI
6th August 2025
43AQI
7th August 2025
48AQI
8th August 2025
41AQI
9th August 2025
36AQI
10th August 2025
40AQI
11th August 2025
32AQI
12th August 2025
35AQI
13th August 2025
39AQI
14th August 2025
40AQI
15th August 2025
40AQI
16th August 2025
42AQI
17th August 2025
41AQI
18th August 2025
49AQI
19th August 2025
49AQI
20th August 2025
41AQI
21st August 2025
43AQI
22nd August 2025
51AQI
23rd August 2025
43AQI
24th August 2025
36AQI
25th August 2025
36AQI
26th August 2025
33AQI
27th August 2025
37AQI
28th August 2025
41AQI
29th August 2025
44AQI
30th August 2025
50AQI
31st August 2025
44AQI
1st September 2025
37AQI
2nd September 2025
36AQI
3rd September 2025
39AQI
4th September 2025
29AQI
5th September 2025
27AQI
6th September 2025
29AQI
7th September 2025
33AQI
8th September 2025
26AQI
9th September 2025
24AQI
10th September 2025
26AQI
11th September 2025
32AQI
12th September 2025
32AQI
13th September 2025
29AQI
14th September 2025
28AQI
15th September 2025
28AQI
16th September 2025
31AQI
17th September 2025
27AQI
18th September 2025
24AQI
19th September 2025
29AQI
20th September 2025
29AQI
21st September 2025
25AQI
22nd September 2025
34AQI
23rd September 2025
30AQI
24th September 2025
27AQI
25th September 2025
34AQI
26th September 2025
46AQI
27th September 2025
36AQI
28th September 2025
27AQI
29th September 2025
35AQI
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

45AQI

39AQI

49AQI

56AQI

53AQI

43AQI

48AQI

42AQI

31AQI

No. of days

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

202545AQI

25
6
27
1
18
13
4
26
10
21
22
8
19
12
30
1
29
184
88

Highest AQI recorded in

April

56AQI

Lowest AQI recorded in

September

31AQI

202450AQI

4
13
2
4
1
6
2
2
20
11
22
8
31
18
13
17
13
24
7
15
15
31
184
79
16

Highest AQI recorded in

January

104AQI

Lowest AQI recorded in

July

34AQI

202350AQI

21
9
1
17
11
18
13
14
16
19
12
16
14
15
16
13
18
16
14
23
8
17
12
21
7
3
210
150
4

Highest AQI recorded in

April

54AQI

Lowest AQI recorded in

October

46AQI

202251AQI

22
9
15
6
16
15
15
15
22
9
14
16
1
12
10
1
1
21
8
23
8
19
11
23
8
191
118
10
1

Highest AQI recorded in

July

93AQI

Lowest AQI recorded in

December

42AQI

202144AQI

22
9
22
6
18
11
18
4
21
10
18
12
28
3
30
1
22
8
15
16
17
13
22
9
253
102

Highest AQI recorded in

October

53AQI

Lowest AQI recorded in

July

34AQI

202045AQI

9
4
11
10
10
8
19
11
30
1
15
15
1
12
7
21
10
19
11
19
12
165
89
1

Highest AQI recorded in

August

55AQI

Lowest AQI recorded in

July

32AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2022(Avg.)
51AQI
Least Polluted Year Recorded
2021(Avg.)
44AQI

Honmachi's annual 2025 AQI (45) shows an average percentage change of -5.1% (improved AQI) compared to previous years: 2020 (45), 2021 (44), 2022 (51), 2023 (50), 2024 (50).