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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Koga Kamimachi, 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+

August Air Quality Analysis

Koga Kamimachi, Honmachi, Kumamoto, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
21st Aug 2023
69AQI
Lowest AQI recorded on
7th Aug 2026
18AQI

Same Day Analysis (17th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 26 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Day & Night AQI Trend: 16th Aug - 17th Aug 2026

Koga Kamimachi, Honmachi, Kumamoto, Japan

AQI
Day
Night
.

5 AM16th Aug 2026

7 PM

4 AM17th Aug 2026

Day time
Avg. Highest Time
6PM16th Aug

50AQI

Avg. Lowest Time
5AM16th Aug

8AQI

Night time
Avg. Highest Time
8PM16th Aug

40AQI

Avg. Lowest Time
10PM16th Aug

14AQI

In the last 24 hours,

Koga Kamimachi's AQI reached its highest point of 50 at 6 PM during the Day, while the lowest point, 8, was recorded at 5 AM during the Day between 16th Aug and 17th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Koga Kamimachi, Honmachi, Kumamoto, Japan

JulAug
19th - 20th20th - 21st21st - 22nd22nd - 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
Day
Night
19th Jul 2026315 AMAQI
19th Jul 2026336 AMAQI
19th Jul 2026347 AMAQI
19th Jul 2026388 AMAQI
19th Jul 2026389 AMAQI
19th Jul 20264010 AMAQI
19th Jul 20263811 AMAQI
19th Jul 20263812 PMAQI
19th Jul 2026381 PMAQI
19th Jul 2026422 PMAQI
19th Jul 2026363 PMAQI
19th Jul 2026334 PMAQI
19th Jul 2026365 PMAQI
19th Jul 2026336 PMAQI
19th Jul 2026367 PMAQI
19th Jul 2026368 PMAQI
19th Jul 2026339 PMAQI
19th Jul 20263210 PMAQI
19th Jul 20263411 PMAQI
20th Jul 20263612 AMAQI
20th Jul 2026401 AMAQI
20th Jul 2026362 AMAQI
20th Jul 2026363 AMAQI
20th Jul 2026364 AMAQI

28°C25/32°C

20th Jul 2026335 AMAQI
20th Jul 2026296 AMAQI
20th Jul 2026277 AMAQI
20th Jul 2026318 AMAQI
20th Jul 2026299 AMAQI
20th Jul 20263110 AMAQI
20th Jul 20263111 AMAQI
20th Jul 20263812 PMAQI
20th Jul 2026381 PMAQI
20th Jul 2026292 PMAQI
20th Jul 2026363 PMAQI
20th Jul 2026404 PMAQI
20th Jul 2026365 PMAQI
20th Jul 2026366 PMAQI
20th Jul 2026317 PMAQI
20th Jul 2026318 PMAQI
20th Jul 2026339 PMAQI
20th Jul 20263310 PMAQI
20th Jul 20263611 PMAQI
21st Jul 20263312 AMAQI
21st Jul 2026331 AMAQI
21st Jul 2026332 AMAQI
21st Jul 2026313 AMAQI
21st Jul 2026364 AMAQI

28°C26/31°C

21st Jul 2026365 AMAQI
21st Jul 2026366 AMAQI
21st Jul 2026517 AMAQI
21st Jul 2026528 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20264210 AMAQI
21st Jul 20264611 AMAQI
21st Jul 2026421 PMAQI
21st Jul 2026442 PMAQI
21st Jul 2026513 PMAQI
21st Jul 2026534 PMAQI
21st Jul 2026515 PMAQI
21st Jul 2026466 PMAQI
21st Jul 2026907 PMAQI
21st Jul 2026468 PMAQI
21st Jul 2026449 PMAQI
21st Jul 20263810 PMAQI
21st Jul 20263811 PMAQI
22nd Jul 20264012 AMAQI
22nd Jul 2026401 AMAQI
22nd Jul 2026422 AMAQI
22nd Jul 2026383 AMAQI
22nd Jul 2026364 AMAQI

28°C25/31°C

22nd Jul 2026335 AMAQI
22nd Jul 2026366 AMAQI
22nd Jul 2026367 AMAQI
22nd Jul 2026368 AMAQI
22nd Jul 2026299 AMAQI
22nd Jul 20262910 AMAQI
22nd Jul 20263811 AMAQI
22nd Jul 20264012 PMAQI
22nd Jul 2026401 PMAQI
22nd Jul 2026482 PMAQI
22nd Jul 2026663 PMAQI
22nd Jul 2026644 PMAQI
22nd Jul 2026565 PMAQI
22nd Jul 2026496 PMAQI
22nd Jul 2026487 PMAQI
22nd Jul 2026428 PMAQI
22nd Jul 2026409 PMAQI
22nd Jul 20263310 PMAQI
22nd Jul 20263311 PMAQI
23rd Jul 20262912 AMAQI
23rd Jul 2026311 AMAQI
23rd Jul 2026292 AMAQI
23rd Jul 2026313 AMAQI
23rd Jul 2026294 AMAQI

28°C25/33°C

23rd Jul 2026255 AMAQI
23rd Jul 2026276 AMAQI
23rd Jul 2026257 AMAQI
23rd Jul 2026278 AMAQI
23rd Jul 2026279 AMAQI
23rd Jul 20262510 AMAQI
23rd Jul 20263311 AMAQI
23rd Jul 20263812 PMAQI
23rd Jul 2026381 PMAQI
23rd Jul 2026402 PMAQI
23rd Jul 2026423 PMAQI
23rd Jul 2026404 PMAQI
23rd Jul 2026345 PMAQI
23rd Jul 2026406 PMAQI
23rd Jul 2026237 PMAQI
23rd Jul 2026278 PMAQI
23rd Jul 2026299 PMAQI
23rd Jul 20262910 PMAQI
23rd Jul 20262711 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026211 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026233 AMAQI
24th Jul 2026214 AMAQI

28°C26/31°C

24th Jul 2026275 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026237 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20263310 AMAQI
24th Jul 20263811 AMAQI
24th Jul 20264012 PMAQI
24th Jul 2026481 PMAQI
24th Jul 2026422 PMAQI
24th Jul 2026443 PMAQI
24th Jul 2026384 PMAQI
24th Jul 2026275 PMAQI
24th Jul 2026276 PMAQI
24th Jul 2026317 PMAQI
24th Jul 2026488 PMAQI
24th Jul 2026409 PMAQI
24th Jul 20263810 PMAQI
24th Jul 20263111 PMAQI
25th Jul 20262912 AMAQI
25th Jul 2026311 AMAQI
25th Jul 2026382 AMAQI
25th Jul 2026403 AMAQI
25th Jul 2026424 AMAQI

28°C25/32°C

25th Jul 2026465 AMAQI
25th Jul 2026506 AMAQI
25th Jul 2026447 AMAQI
25th Jul 2026468 AMAQI
25th Jul 2026449 AMAQI
25th Jul 20264610 AMAQI
25th Jul 20265511 AMAQI
25th Jul 20265212 PMAQI
25th Jul 2026551 PMAQI
25th Jul 2026572 PMAQI
25th Jul 2026563 PMAQI
25th Jul 2026494 PMAQI
25th Jul 2026425 PMAQI
25th Jul 2026366 PMAQI
25th Jul 2026297 PMAQI
25th Jul 2026318 PMAQI
25th Jul 2026299 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20262311 PMAQI
26th Jul 20262512 AMAQI
26th Jul 2026251 AMAQI
26th Jul 2026232 AMAQI
26th Jul 2026233 AMAQI
26th Jul 2026234 AMAQI

28°C25/33°C

26th Jul 2026235 AMAQI
26th Jul 2026256 AMAQI
26th Jul 2026237 AMAQI
26th Jul 2026218 AMAQI
26th Jul 2026219 AMAQI
26th Jul 20263810 AMAQI
26th Jul 20264011 AMAQI
26th Jul 20262512 PMAQI
26th Jul 2026291 PMAQI
26th Jul 2026232 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026294 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026236 PMAQI
26th Jul 2026237 PMAQI
26th Jul 2026238 PMAQI
26th Jul 2026279 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262311 PMAQI
27th Jul 20262112 AMAQI
27th Jul 2026251 AMAQI
27th Jul 2026252 AMAQI
27th Jul 2026233 AMAQI
27th Jul 2026294 AMAQI

29°C25/34°C

27th Jul 2026275 AMAQI
27th Jul 2026276 AMAQI
27th Jul 2026367 AMAQI
27th Jul 2026318 AMAQI
27th Jul 2026319 AMAQI
27th Jul 20263610 AMAQI
27th Jul 20264011 AMAQI
27th Jul 20264012 PMAQI
27th Jul 2026401 PMAQI
27th Jul 2026252 PMAQI
27th Jul 2026293 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026236 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026278 PMAQI
27th Jul 2026389 PMAQI
27th Jul 20263110 PMAQI
27th Jul 20262711 PMAQI
28th Jul 20263412 AMAQI
28th Jul 2026361 AMAQI
28th Jul 2026382 AMAQI
28th Jul 2026423 AMAQI
28th Jul 2026404 AMAQI

29°C25/34°C

28th Jul 2026405 AMAQI
28th Jul 2026406 AMAQI
28th Jul 2026467 AMAQI
28th Jul 2026448 AMAQI
28th Jul 2026429 AMAQI
28th Jul 20264010 AMAQI
28th Jul 20264011 AMAQI
28th Jul 20264012 PMAQI
28th Jul 2026401 PMAQI
28th Jul 2026402 PMAQI
28th Jul 2026443 PMAQI
28th Jul 2026364 PMAQI
28th Jul 2026365 PMAQI
28th Jul 2026366 PMAQI
28th Jul 2026367 PMAQI
28th Jul 2026338 PMAQI
28th Jul 2026369 PMAQI
28th Jul 20263310 PMAQI
28th Jul 20262311 PMAQI
29th Jul 20262112 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026213 AMAQI
29th Jul 2026234 AMAQI

28°C25/33°C

29th Jul 2026235 AMAQI
29th Jul 2026236 AMAQI
29th Jul 2026217 AMAQI
29th Jul 2026218 AMAQI
29th Jul 2026259 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20261611 AMAQI
29th Jul 20261212 PMAQI
29th Jul 202681 PMAQI
29th Jul 2026212 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026215 PMAQI
29th Jul 2026196 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026408 PMAQI
29th Jul 2026429 PMAQI
29th Jul 20262310 PMAQI
29th Jul 20261211 PMAQI
30th Jul 20261212 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026402 AMAQI
30th Jul 2026403 AMAQI
30th Jul 2026344 AMAQI

27°C25/30°C

30th Jul 2026275 AMAQI
30th Jul 2026236 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026258 AMAQI
30th Jul 2026219 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026251 PMAQI
30th Jul 2026332 PMAQI
30th Jul 2026313 PMAQI
30th Jul 2026364 PMAQI
30th Jul 2026335 PMAQI
30th Jul 2026316 PMAQI
30th Jul 2026297 PMAQI
30th Jul 2026298 PMAQI
30th Jul 2026279 PMAQI
30th Jul 20262910 PMAQI
30th Jul 20262911 PMAQI
31st Jul 20262912 AMAQI
31st Jul 2026291 AMAQI
31st Jul 2026332 AMAQI
31st Jul 2026383 AMAQI
31st Jul 2026344 AMAQI

28°C25/32°C

31st Jul 2026385 AMAQI
31st Jul 2026446 AMAQI
31st Jul 2026467 AMAQI
31st Jul 2026538 AMAQI
31st Jul 2026489 AMAQI
31st Jul 20262910 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262512 PMAQI
31st Jul 2026291 PMAQI
31st Jul 2026292 PMAQI
31st Jul 2026213 PMAQI
31st Jul 2026234 PMAQI
31st Jul 2026215 PMAQI
31st Jul 2026256 PMAQI
31st Jul 2026237 PMAQI
31st Jul 2026298 PMAQI
31st Jul 2026219 PMAQI
31st Jul 20262510 PMAQI
31st Jul 20262511 PMAQI
1st Aug 20262512 AMAQI
1st Aug 2026231 AMAQI
1st Aug 2026212 AMAQI
1st Aug 2026233 AMAQI
1st Aug 2026254 AMAQI

28°C24/32°C

1st Aug 2026235 AMAQI
1st Aug 2026236 AMAQI
1st Aug 2026237 AMAQI
1st Aug 2026298 AMAQI
1st Aug 2026239 AMAQI
1st Aug 20262510 AMAQI
1st Aug 20262111 AMAQI
1st Aug 20262112 PMAQI
1st Aug 2026211 PMAQI
1st Aug 2026232 PMAQI
1st Aug 2026233 PMAQI
1st Aug 2026254 PMAQI
1st Aug 2026275 PMAQI
1st Aug 2026336 PMAQI
1st Aug 2026297 PMAQI
1st Aug 2026318 PMAQI
1st Aug 2026319 PMAQI
1st Aug 20263310 PMAQI
1st Aug 20263111 PMAQI
2nd Aug 20263312 AMAQI
2nd Aug 2026381 AMAQI
2nd Aug 2026462 AMAQI
2nd Aug 2026383 AMAQI
2nd Aug 2026404 AMAQI

28°C25/33°C

2nd Aug 2026405 AMAQI
2nd Aug 2026406 AMAQI
2nd Aug 2026387 AMAQI
2nd Aug 2026388 AMAQI
2nd Aug 2026429 AMAQI
2nd Aug 20264410 AMAQI
2nd Aug 20264411 AMAQI
2nd Aug 20264212 PMAQI
2nd Aug 2026441 PMAQI
2nd Aug 2026422 PMAQI
2nd Aug 2026503 PMAQI
2nd Aug 2026484 PMAQI
2nd Aug 2026535 PMAQI
2nd Aug 2026486 PMAQI
2nd Aug 2026507 PMAQI
2nd Aug 2026578 PMAQI
2nd Aug 2026549 PMAQI
2nd Aug 20264610 PMAQI
2nd Aug 20265011 PMAQI
3rd Aug 20264912 AMAQI
3rd Aug 2026581 AMAQI
3rd Aug 2026542 AMAQI
3rd Aug 2026463 AMAQI
3rd Aug 2026504 AMAQI

29°C25/34°C

3rd Aug 2026465 AMAQI
3rd Aug 2026486 AMAQI
3rd Aug 2026697 AMAQI
3rd Aug 2026608 AMAQI
3rd Aug 2026429 AMAQI
3rd Aug 20264610 AMAQI
3rd Aug 20264611 AMAQI
3rd Aug 20265112 PMAQI
3rd Aug 2026511 PMAQI
3rd Aug 2026552 PMAQI
3rd Aug 2026563 PMAQI
3rd Aug 2026694 PMAQI
3rd Aug 2026725 PMAQI
3rd Aug 2026666 PMAQI
3rd Aug 2026627 PMAQI
3rd Aug 2026428 PMAQI
3rd Aug 2026579 PMAQI
3rd Aug 20267210 PMAQI
3rd Aug 20267411 PMAQI
4th Aug 20266712 AMAQI
4th Aug 2026601 AMAQI
4th Aug 2026602 AMAQI
4th Aug 2026563 AMAQI
4th Aug 2026534 AMAQI

29°C25/35°C

4th Aug 2026645 AMAQI
4th Aug 2026546 AMAQI
4th Aug 2026457 AMAQI
4th Aug 2026628 AMAQI
4th Aug 2026699 AMAQI
4th Aug 20266410 AMAQI
4th Aug 20265811 AMAQI
4th Aug 20265612 PMAQI
4th Aug 2026671 PMAQI
4th Aug 2026742 PMAQI
4th Aug 2026763 PMAQI
4th Aug 2026904 PMAQI
4th Aug 2026425 PMAQI
4th Aug 2026526 PMAQI
4th Aug 2026507 PMAQI
4th Aug 2026768 PMAQI
4th Aug 2026449 PMAQI
4th Aug 20265510 PMAQI
4th Aug 20266311 PMAQI
5th Aug 20266412 AMAQI
5th Aug 2026641 AMAQI
5th Aug 2026582 AMAQI
5th Aug 2026513 AMAQI
5th Aug 2026484 AMAQI

29°C24/33°C

5th Aug 2026475 AMAQI
5th Aug 2026506 AMAQI
5th Aug 2026517 AMAQI
5th Aug 2026388 AMAQI
5th Aug 2026429 AMAQI
5th Aug 20264610 AMAQI
5th Aug 20264611 AMAQI
5th Aug 20264412 PMAQI
5th Aug 2026461 PMAQI
5th Aug 2026482 PMAQI
5th Aug 2026483 PMAQI
5th Aug 2026424 PMAQI
5th Aug 2026205 PMAQI
5th Aug 2026266 PMAQI
5th Aug 2026337 PMAQI
5th Aug 2026408 PMAQI
5th Aug 2026689 PMAQI
5th Aug 20264910 PMAQI
5th Aug 20262511 PMAQI
6th Aug 20262112 AMAQI
6th Aug 2026191 AMAQI
6th Aug 2026322 AMAQI
6th Aug 2026443 AMAQI
6th Aug 2026254 AMAQI

29°C25/34°C

6th Aug 2026105 AMAQI
6th Aug 2026216 AMAQI
6th Aug 2026177 AMAQI
6th Aug 2026148 AMAQI
6th Aug 2026149 AMAQI
6th Aug 20262110 AMAQI
6th Aug 20261411 AMAQI
6th Aug 20261712 PMAQI
6th Aug 2026171 PMAQI
6th Aug 2026142 PMAQI
6th Aug 2026173 PMAQI
6th Aug 2026144 PMAQI
6th Aug 2026255 PMAQI
6th Aug 2026236 PMAQI
6th Aug 2026237 PMAQI
6th Aug 2026258 PMAQI
6th Aug 2026409 PMAQI
6th Aug 20264210 PMAQI
6th Aug 20261211 PMAQI
7th Aug 20261212 AMAQI
7th Aug 2026121 AMAQI
7th Aug 2026122 AMAQI
7th Aug 2026233 AMAQI
7th Aug 2026234 AMAQI

29°C24/35°C

7th Aug 202685 AMAQI
7th Aug 202686 AMAQI
7th Aug 2026107 AMAQI
7th Aug 2026108 AMAQI
7th Aug 2026129 AMAQI
7th Aug 20261210 AMAQI
7th Aug 20261211 AMAQI
7th Aug 20261212 PMAQI
7th Aug 2026271 PMAQI
7th Aug 2026212 PMAQI
7th Aug 2026293 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026255 PMAQI
7th Aug 2026256 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026258 PMAQI
7th Aug 2026219 PMAQI
7th Aug 20262110 PMAQI
7th Aug 20262311 PMAQI
8th Aug 20262512 AMAQI
8th Aug 2026211 AMAQI
8th Aug 2026252 AMAQI
8th Aug 2026253 AMAQI
8th Aug 2026254 AMAQI

29°C29/30°C

8th Aug 2026215 AMAQI
8th Aug 2026256 AMAQI
8th Aug 2026217 AMAQI
8th Aug 2026258 AMAQI
8th Aug 2026339 AMAQI
8th Aug 20262510 AMAQI
8th Aug 20262111 AMAQI
8th Aug 20262912 PMAQI
8th Aug 2026291 PMAQI
8th Aug 2026292 PMAQI
8th Aug 2026233 PMAQI
8th Aug 2026254 PMAQI
8th Aug 2026255 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026218 PMAQI
8th Aug 2026259 PMAQI
8th Aug 20262110 PMAQI
8th Aug 20262111 PMAQI
9th Aug 20262112 AMAQI
9th Aug 2026251 AMAQI
9th Aug 2026212 AMAQI
9th Aug 2026213 AMAQI
9th Aug 2026294 AMAQI

29°C26/33°C

9th Aug 2026255 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026298 AMAQI
9th Aug 2026219 AMAQI
9th Aug 20262910 AMAQI
9th Aug 20262511 AMAQI
9th Aug 20262112 PMAQI
9th Aug 2026211 PMAQI
9th Aug 2026212 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026254 PMAQI
9th Aug 2026215 PMAQI
9th Aug 2026216 PMAQI
9th Aug 2026257 PMAQI
9th Aug 2026258 PMAQI
9th Aug 2026259 PMAQI
9th Aug 20262310 PMAQI
9th Aug 20262311 PMAQI
10th Aug 20262112 AMAQI
10th Aug 2026251 AMAQI
10th Aug 2026292 AMAQI
10th Aug 2026253 AMAQI
10th Aug 2026254 AMAQI

29°C24/33°C

10th Aug 2026215 AMAQI
10th Aug 2026216 AMAQI
10th Aug 2026217 AMAQI
10th Aug 2026258 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20262510 AMAQI
10th Aug 20262311 AMAQI
10th Aug 20262112 PMAQI
10th Aug 2026211 PMAQI
10th Aug 2026252 PMAQI
10th Aug 2026233 PMAQI
10th Aug 2026294 PMAQI
10th Aug 2026255 PMAQI
10th Aug 2026386 PMAQI
10th Aug 2026257 PMAQI
10th Aug 2026218 PMAQI
10th Aug 2026219 PMAQI
10th Aug 20262310 PMAQI
10th Aug 20263111 PMAQI
11th Aug 20263312 AMAQI
11th Aug 2026291 AMAQI
11th Aug 2026272 AMAQI
11th Aug 2026273 AMAQI
11th Aug 2026294 AMAQI

28°C25/32°C

11th Aug 2026275 AMAQI
11th Aug 2026296 AMAQI
11th Aug 2026257 AMAQI
11th Aug 2026278 AMAQI
11th Aug 2026239 AMAQI
11th Aug 20262510 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262912 PMAQI
11th Aug 2026291 PMAQI
11th Aug 2026292 PMAQI
11th Aug 2026313 PMAQI
11th Aug 2026314 PMAQI
11th Aug 2026315 PMAQI
11th Aug 2026366 PMAQI
11th Aug 2026367 PMAQI
11th Aug 2026318 PMAQI
11th Aug 2026319 PMAQI
11th Aug 20263110 PMAQI
11th Aug 20262911 PMAQI
12th Aug 20262912 AMAQI
12th Aug 2026271 AMAQI
12th Aug 2026272 AMAQI
12th Aug 2026253 AMAQI
12th Aug 2026254 AMAQI

27°C25/32°C

12th Aug 2026255 AMAQI
12th Aug 2026236 AMAQI
12th Aug 2026217 AMAQI
12th Aug 2026218 AMAQI
12th Aug 2026239 AMAQI
12th Aug 20262110 AMAQI
12th Aug 20262111 AMAQI
12th Aug 20262312 PMAQI
12th Aug 2026231 PMAQI
12th Aug 2026212 PMAQI
12th Aug 2026213 PMAQI
12th Aug 2026214 PMAQI
12th Aug 2026535 PMAQI
12th Aug 2026386 PMAQI
12th Aug 2026277 PMAQI
12th Aug 2026318 PMAQI
12th Aug 2026409 PMAQI
12th Aug 20264210 PMAQI
12th Aug 20264411 PMAQI
13th Aug 20264212 AMAQI
13th Aug 2026401 AMAQI
13th Aug 2026312 AMAQI
13th Aug 2026383 AMAQI
13th Aug 2026384 AMAQI

26°C22/31°C

13th Aug 2026315 AMAQI
13th Aug 2026296 AMAQI
13th Aug 2026427 AMAQI
13th Aug 2026428 AMAQI
13th Aug 2026389 AMAQI
13th Aug 20263610 AMAQI
13th Aug 20264611 AMAQI
13th Aug 20266912 PMAQI
13th Aug 2026731 PMAQI
13th Aug 2026642 PMAQI
13th Aug 2026763 PMAQI
13th Aug 2026364 PMAQI
13th Aug 2026385 PMAQI
13th Aug 2026546 PMAQI
13th Aug 2026557 PMAQI
13th Aug 2026298 PMAQI
13th Aug 2026179 PMAQI
13th Aug 20261710 PMAQI
13th Aug 20262311 PMAQI
14th Aug 20262912 AMAQI
14th Aug 2026121 AMAQI
14th Aug 2026252 AMAQI
14th Aug 2026313 AMAQI
14th Aug 2026254 AMAQI

26°C23/30°C

14th Aug 2026515 AMAQI
14th Aug 2026496 AMAQI
14th Aug 2026407 AMAQI
14th Aug 2026338 AMAQI
14th Aug 2026319 AMAQI
14th Aug 20263810 AMAQI
14th Aug 20264811 AMAQI
14th Aug 20265412 PMAQI
14th Aug 2026501 PMAQI
14th Aug 2026482 PMAQI
14th Aug 2026523 PMAQI
14th Aug 2026534 PMAQI
14th Aug 2026445 PMAQI
14th Aug 2026656 PMAQI
14th Aug 2026537 PMAQI
14th Aug 2026148 PMAQI
14th Aug 2026169 PMAQI
14th Aug 20263310 PMAQI
14th Aug 20262911 PMAQI
15th Aug 20262912 AMAQI
15th Aug 2026311 AMAQI
15th Aug 2026312 AMAQI
15th Aug 2026293 AMAQI
15th Aug 2026314 AMAQI

27°C23/31°C

15th Aug 2026515 AMAQI
15th Aug 2026526 AMAQI
15th Aug 2026127 AMAQI
15th Aug 2026158 AMAQI
15th Aug 2026389 AMAQI
15th Aug 20264010 AMAQI
15th Aug 20264211 AMAQI
15th Aug 20264012 PMAQI
15th Aug 2026441 PMAQI
15th Aug 2026292 PMAQI
15th Aug 2026293 PMAQI
15th Aug 2026254 PMAQI
15th Aug 2026295 PMAQI
15th Aug 2026466 PMAQI
15th Aug 2026277 PMAQI
15th Aug 2026368 PMAQI
15th Aug 2026299 PMAQI
15th Aug 20262710 PMAQI
15th Aug 20262711 PMAQI
16th Aug 20261312 AMAQI
16th Aug 2026291 AMAQI
16th Aug 2026212 AMAQI
16th Aug 2026103 AMAQI
16th Aug 2026104 AMAQI

27°C24/31°C

16th Aug 202685 AMAQI
16th Aug 2026106 AMAQI
16th Aug 2026197 AMAQI
16th Aug 2026128 AMAQI
16th Aug 2026149 AMAQI
16th Aug 20262110 AMAQI
16th Aug 20262311 AMAQI
16th Aug 20263212 PMAQI
16th Aug 2026191 PMAQI
16th Aug 2026332 PMAQI
16th Aug 2026333 PMAQI
16th Aug 2026484 PMAQI
16th Aug 2026405 PMAQI
16th Aug 2026506 PMAQI
16th Aug 2026447 PMAQI
16th Aug 2026408 PMAQI
16th Aug 2026149 PMAQI
16th Aug 20261410 PMAQI
16th Aug 20262711 PMAQI
17th Aug 20262512 AMAQI
17th Aug 2026331 AMAQI
17th Aug 2026232 AMAQI
17th Aug 2026213 AMAQI
17th Aug 2026214 AMAQI

26°C24/30°C

17th Aug 2026195 AMAQI
5 AM
17th Aug 2026106 AMAQI
17th Aug 2026147 AMAQI
17th Aug 2026368 AMAQI
17th Aug 2026389 AMAQI
17th Aug 20262510 AMAQI
17th Aug 20262511 AMAQI
17th Aug 20261412 PMAQI
12 PM
17th Aug 2026191 PMAQI
17th Aug 2026312 PMAQI
17th Aug 2026333 PMAQI
17th Aug 2026494 PMAQI
17th Aug 2026485 PMAQI
17th Aug 2026196 PMAQI
17th Aug 2026217 PMAQI
7 PM
17th Aug 2026318 PMAQI
17th Aug 2026229 PMAQI
17th Aug 20261710 PMAQI
17th Aug 20262311 PMAQI
12 AM
4 AM

15°C15/16°C

Day time
Avg. Highest Time
3 PM - 4 PM

38AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
5 AM - 7 AM

31AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 4 PM (Avg. 38), while the lowest AQI was between 5 AM to 7 AM (Avg. 31).
Night time
Avg. Highest Time
8 PM - 9 PM

34AQI

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 8 PM to 9 PM (Avg. 34), while the lowest AQI was between 12 AM to 12 AM (Avg. 30).

2026 Days Vs Air Quality

Koga Kamimachi, Honmachi, Kumamoto, Japan

2026

88%

202

12%

27

Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)

Good
202 Days
Moderate
27 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 88%

Health Risk Level:

Low

In 2026, 88% of 229 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

Koga Kamimachi, Honmachi, Kumamoto, Japan

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
18AQI (US)
2nd January 2026
21AQI (US)
3rd January 2026
23AQI (US)
4th January 2026
34AQI (US)
5th January 2026
41AQI (US)
6th January 2026
31AQI (US)
7th January 2026
41AQI (US)
8th January 2026
37AQI (US)
9th January 2026
21AQI (US)
10th January 2026
29AQI (US)
11th January 2026
33AQI (US)
12th January 2026
25AQI (US)
13th January 2026
34AQI (US)
14th January 2026
29AQI (US)
15th January 2026
47AQI (US)
16th January 2026
42AQI (US)
17th January 2026
51AQI (US)
18th January 2026
58AQI (US)
19th January 2026
62AQI (US)
20th January 2026
44AQI (US)
21st January 2026
17AQI (US)
22nd January 2026
18AQI (US)
23rd January 2026
39AQI (US)
24th January 2026
50AQI (US)
25th January 2026
32AQI (US)
26th January 2026
26AQI (US)
27th January 2026
40AQI (US)
28th January 2026
30AQI (US)
29th January 2026
40AQI (US)
30th January 2026
40AQI (US)
31st January 2026
18AQI (US)
1st February 2026
41AQI (US)
2nd February 2026
38AQI (US)
3rd February 2026
33AQI (US)
4th February 2026
33AQI (US)
5th February 2026
39AQI (US)
6th February 2026
44AQI (US)
7th February 2026
37AQI (US)
8th February 2026
17AQI (US)
9th February 2026
35AQI (US)
10th February 2026
41AQI (US)
11th February 2026
44AQI (US)
12th February 2026
50AQI (US)
13th February 2026
42AQI (US)
14th February 2026
48AQI (US)
15th February 2026
40AQI (US)
16th February 2026
63AQI (US)
17th February 2026
37AQI (US)
18th February 2026
23AQI (US)
19th February 2026
55AQI (US)
20th February 2026
35AQI (US)
21st February 2026
39AQI (US)
22nd February 2026
44AQI (US)
23rd February 2026
41AQI (US)
24th February 2026
40AQI (US)
25th February 2026
22AQI (US)
26th February 2026
17AQI (US)
27th February 2026
49AQI (US)
28th February 2026
37AQI (US)
1st March 2026
34AQI (US)
2nd March 2026
36AQI (US)
3rd March 2026
12AQI (US)
4th March 2026
25AQI (US)
5th March 2026
47AQI (US)
6th March 2026
46AQI (US)
7th March 2026
46AQI (US)
8th March 2026
35AQI (US)
9th March 2026
42AQI (US)
10th March 2026
52AQI (US)
11th March 2026
35AQI (US)
12th March 2026
44AQI (US)
13th March 2026
37AQI (US)
14th March 2026
43AQI (US)
15th March 2026
57AQI (US)
16th March 2026
47AQI (US)
17th March 2026
58AQI (US)
18th March 2026
49AQI (US)
19th March 2026
26AQI (US)
20th March 2026
53AQI (US)
21st March 2026
37AQI (US)
22nd March 2026
42AQI (US)
23rd March 2026
19AQI (US)
24th March 2026
46AQI (US)
25th March 2026
33AQI (US)
26th March 2026
17AQI (US)
27th March 2026
52AQI (US)
28th March 2026
80AQI (US)
29th March 2026
88AQI (US)
30th March 2026
46AQI (US)
31st March 2026
27AQI (US)
1st April 2026
19AQI (US)
2nd April 2026
53AQI (US)
3rd April 2026
48AQI (US)
4th April 2026
43AQI (US)
5th April 2026
48AQI (US)
6th April 2026
47AQI (US)
7th April 2026
33AQI (US)
8th April 2026
27AQI (US)
9th April 2026
33AQI (US)
10th April 2026
43AQI (US)
11th April 2026
34AQI (US)
12th April 2026
33AQI (US)
13th April 2026
30AQI (US)
14th April 2026
33AQI (US)
15th April 2026
31AQI (US)
16th April 2026
35AQI (US)
17th April 2026
34AQI (US)
18th April 2026
26AQI (US)
19th April 2026
27AQI (US)
20th April 2026
58AQI (US)
21st April 2026
35AQI (US)
22nd April 2026
43AQI (US)
23rd April 2026
32AQI (US)
24th April 2026
24AQI (US)
25th April 2026
42AQI (US)
26th April 2026
47AQI (US)
27th April 2026
53AQI (US)
28th April 2026
46AQI (US)
29th April 2026
35AQI (US)
30th April 2026
29AQI (US)
1st May 2026
38AQI (US)
2nd May 2026
44AQI (US)
3rd May 2026
37AQI (US)
4th May 2026
28AQI (US)
5th May 2026
26AQI (US)
6th May 2026
29AQI (US)
7th May 2026
31AQI (US)
8th May 2026
25AQI (US)
9th May 2026
28AQI (US)
10th May 2026
30AQI (US)
11th May 2026
41AQI (US)
12th May 2026
30AQI (US)
13th May 2026
35AQI (US)
14th May 2026
35AQI (US)
15th May 2026
40AQI (US)
16th May 2026
77AQI (US)
17th May 2026
63AQI (US)
18th May 2026
52AQI (US)
19th May 2026
45AQI (US)
20th May 2026
61AQI (US)
21st May 2026
66AQI (US)
22nd May 2026
69AQI (US)
23rd May 2026
62AQI (US)
24th May 2026
63AQI (US)
25th May 2026
55AQI (US)
26th May 2026
41AQI (US)
27th May 2026
24AQI (US)
28th May 2026
25AQI (US)
29th May 2026
30AQI (US)
30th May 2026
39AQI (US)
31st May 2026
28AQI (US)
1st June 2026
52AQI (US)
2nd June 2026
18AQI (US)
3rd June 2026
19AQI (US)
4th June 2026
24AQI (US)
5th June 2026
22AQI (US)
6th June 2026
38AQI (US)
7th June 2026
20AQI (US)
8th June 2026
23AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
25AQI (US)
13th June 2026
25AQI (US)
14th June 2026
24AQI (US)
15th June 2026
22AQI (US)
16th June 2026
24AQI (US)
17th June 2026
24AQI (US)
18th June 2026
25AQI (US)
19th June 2026
24AQI (US)
20th June 2026
23AQI (US)
21st June 2026
21AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
19AQI (US)
25th June 2026
28AQI (US)
26th June 2026
28AQI (US)
27th June 2026
27AQI (US)
28th June 2026
27AQI (US)
29th June 2026
24AQI (US)
30th June 2026
32AQI (US)
1st July 2026
17AQI (US)
2nd July 2026
20AQI (US)
3rd July 2026
23AQI (US)
4th July 2026
25AQI (US)
5th July 2026
32AQI (US)
6th July 2026
36AQI (US)
7th July 2026
45AQI (US)
8th July 2026
26AQI (US)
9th July 2026
24AQI (US)
10th July 2026
27AQI (US)
11th July 2026
26AQI (US)
12th July 2026
30AQI (US)
13th July 2026
34AQI (US)
14th July 2026
28AQI (US)
15th July 2026
26AQI (US)
16th July 2026
27AQI (US)
17th July 2026
29AQI (US)
18th July 2026
33AQI (US)
19th July 2026
34AQI (US)
20th July 2026
34AQI (US)
21st July 2026
44AQI (US)
22nd July 2026
41AQI (US)
23rd July 2026
31AQI (US)
24th July 2026
32AQI (US)
25th July 2026
42AQI (US)
26th July 2026
25AQI (US)
27th July 2026
30AQI (US)
28th July 2026
38AQI (US)
29th July 2026
23AQI (US)
30th July 2026
28AQI (US)
31st July 2026
31AQI (US)
1st August 2026
26AQI (US)
2nd August 2026
44AQI (US)
3rd August 2026
56AQI (US)
4th August 2026
61AQI (US)
5th August 2026
46AQI (US)
6th August 2026
22AQI (US)
7th August 2026
18AQI (US)
8th August 2026
25AQI (US)
9th August 2026
24AQI (US)
10th August 2026
25AQI (US)
11th August 2026
29AQI (US)
12th August 2026
28AQI (US)
13th August 2026
42AQI (US)
14th August 2026
38AQI (US)
15th August 2026
33AQI (US)
16th August 2026
24AQI (US)
17th August 2026
26AQI (US)
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

35AQI (US)

39AQI (US)

42AQI (US)

37AQI (US)

42AQI (US)

25AQI (US)

30AQI (US)

33AQI (US)

No. of days

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

202636AQI (US)

28
3
26
2
24
7
27
3
22
9
29
1
31
15
2
202
27

Highest AQI (US) recorded in

March

42AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202547AQI (US)

22
9
26
2
17
14
6
24
16
15
22
8
19
12
30
1
30
2
29
10
20
23
8
223
142

Highest AQI (US) recorded in

October

61AQI (US)

Lowest AQI (US) recorded in

September

32AQI (US)

202448AQI (US)

1
16
2
1
5
1
2
18
13
21
9
31
16
15
18
12
26
5
13
17
30
1
178
76
19

Highest AQI (US) recorded in

January

107AQI (US)

Lowest AQI (US) recorded in

July

33AQI (US)

202350AQI (US)

18
11
1
14
14
15
16
14
16
15
16
15
15
16
15
12
19
20
10
24
7
18
11
22
6
2
203
156
3

Highest AQI (US) recorded in

April

55AQI (US)

Lowest AQI (US) recorded in

October

42AQI (US)

202253AQI (US)

20
9
14
7
16
15
10
20
16
15
9
21
2
10
10
1
20
7
1
21
10
19
11
20
11
167
137
1
10

Highest AQI (US) recorded in

July

108AQI (US)

Lowest AQI (US) recorded in

December

43AQI (US)

202146AQI (US)

19
11
19
9
15
14
17
4
18
12
1
17
13
26
5
26
5
20
10
16
15
17
13
19
12
229
123
1

Highest AQI (US) recorded in

October

53AQI (US)

Lowest AQI (US) recorded in

July

38AQI (US)

202046AQI (US)

9
4
8
13
11
7
19
11
31
13
16
2
13
6
20
11
15
15
17
14
156
97
2

Highest AQI (US) recorded in

August

57AQI (US)

Lowest AQI (US) recorded in

July

31AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2022(Avg.)
53AQI (US)
Least Polluted Year Recorded
2026(Avg.)
36AQI (US)

Koga Kamimachi's annual 2026 AQI (US) (36) shows an average percentage change of -25.3% (improved AQI (US)) compared to previous years: 2020 (46), 2021 (46), 2022 (53), 2023 (50), 2024 (48), 2025 (47).