Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Honcho, Otawara, Tochigi, 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

Honcho, Otawara, Tochigi, Japan

2022
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
26th Aug 2025
55AQI
Lowest AQI recorded on
3rd Aug 2026
18AQI

Same Day Analysis (13th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 3rd highest AQI at 32 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 12th Aug - 13th Aug 2026

Honcho, Otawara, Tochigi, Japan

AQI
Day
Night
.

4 AM12th Aug 2026

6 PM

3 AM13th Aug 2026

Day time
Avg. Highest Time
12PM12th Aug

57AQI

Avg. Lowest Time
8AM12th Aug

32AQI

Night time
Avg. Highest Time
7PM12th Aug

36AQI

Avg. Lowest Time
3AM13th Aug

21AQI

In the last 24 hours,

Honcho's AQI reached its highest point of 57 at 12 PM during the Day, while the lowest point, 21, was recorded at 3 AM during the Night between 12th Aug and 13th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Honcho, Otawara, Tochigi, Japan

JulAug
15th - 16th16th - 17th17th - 18th18th - 19th19th - 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
Day
Night
15th Jul 2026514 AMAQI
15th Jul 2026405 AMAQI
15th Jul 2026486 AMAQI
15th Jul 2026487 AMAQI
15th Jul 2026528 AMAQI
15th Jul 2026629 AMAQI
15th Jul 20266210 AMAQI
15th Jul 20266711 AMAQI
15th Jul 20266712 PMAQI
15th Jul 2026661 PMAQI
15th Jul 2026682 PMAQI
15th Jul 2026603 PMAQI
15th Jul 2026584 PMAQI
15th Jul 2026605 PMAQI
15th Jul 2026646 PMAQI
15th Jul 2026687 PMAQI
15th Jul 2026668 PMAQI
15th Jul 2026729 PMAQI
15th Jul 20266310 PMAQI
15th Jul 20265711 PMAQI
16th Jul 20265312 AMAQI
16th Jul 2026591 AMAQI
16th Jul 2026582 AMAQI
16th Jul 2026523 AMAQI

28°C22/34°C

16th Jul 2026384 AMAQI
16th Jul 2026345 AMAQI
16th Jul 2026366 AMAQI
16th Jul 2026447 AMAQI
16th Jul 2026408 AMAQI
16th Jul 2026449 AMAQI
16th Jul 20264210 AMAQI
16th Jul 20266711 AMAQI
16th Jul 20264212 PMAQI
16th Jul 2026331 PMAQI
16th Jul 2026312 PMAQI
16th Jul 2026253 PMAQI
16th Jul 2026254 PMAQI
16th Jul 2026215 PMAQI
16th Jul 2026236 PMAQI
16th Jul 2026387 PMAQI
16th Jul 2026538 PMAQI
16th Jul 2026589 PMAQI
16th Jul 20265710 PMAQI
16th Jul 20266511 PMAQI
17th Jul 20266812 AMAQI
17th Jul 2026661 AMAQI
17th Jul 2026642 AMAQI
17th Jul 2026643 AMAQI

27°C23/33°C

17th Jul 2026564 AMAQI
17th Jul 2026535 AMAQI
17th Jul 2026626 AMAQI
17th Jul 2026607 AMAQI
17th Jul 2026628 AMAQI
17th Jul 2026489 AMAQI
17th Jul 20264610 AMAQI
17th Jul 20266211 AMAQI
17th Jul 20266412 PMAQI
17th Jul 2026711 PMAQI
17th Jul 2026332 PMAQI
17th Jul 2026333 PMAQI
17th Jul 2026254 PMAQI
17th Jul 2026295 PMAQI
17th Jul 2026316 PMAQI
17th Jul 2026257 PMAQI
17th Jul 2026298 PMAQI
17th Jul 2026219 PMAQI
17th Jul 20262910 PMAQI
17th Jul 20262511 PMAQI
18th Jul 20262512 AMAQI
18th Jul 2026211 AMAQI
18th Jul 2026252 AMAQI
18th Jul 2026253 AMAQI

25°C23/27°C

18th Jul 2026214 AMAQI
18th Jul 2026235 AMAQI
18th Jul 2026256 AMAQI
18th Jul 2026257 AMAQI
18th Jul 2026258 AMAQI
18th Jul 2026259 AMAQI
18th Jul 20262510 AMAQI
18th Jul 20262511 AMAQI
18th Jul 20262512 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026252 PMAQI
18th Jul 2026213 PMAQI
18th Jul 2026254 PMAQI
18th Jul 2026255 PMAQI
18th Jul 2026236 PMAQI
18th Jul 2026237 PMAQI
18th Jul 2026218 PMAQI
18th Jul 2026239 PMAQI
18th Jul 20262110 PMAQI
18th Jul 20262311 PMAQI
19th Jul 20262712 AMAQI
19th Jul 2026291 AMAQI
19th Jul 2026272 AMAQI
19th Jul 2026253 AMAQI

24°C22/27°C

19th Jul 2026234 AMAQI
19th Jul 2026215 AMAQI
19th Jul 2026236 AMAQI
19th Jul 2026237 AMAQI
19th Jul 2026218 AMAQI
19th Jul 2026219 AMAQI
19th Jul 20262910 AMAQI
19th Jul 20262511 AMAQI
19th Jul 20262312 PMAQI
19th Jul 2026231 PMAQI
19th Jul 2026342 PMAQI
19th Jul 2026383 PMAQI
19th Jul 2026514 PMAQI
19th Jul 2026365 PMAQI
19th Jul 2026496 PMAQI
19th Jul 2026487 PMAQI
19th Jul 2026518 PMAQI
19th Jul 2026479 PMAQI
19th Jul 20265110 PMAQI
19th Jul 20263611 PMAQI
20th Jul 20262512 AMAQI
20th Jul 2026361 AMAQI
20th Jul 2026292 AMAQI
20th Jul 2026403 AMAQI

25°C22/30°C

20th Jul 2026364 AMAQI
20th Jul 2026345 AMAQI
20th Jul 2026386 AMAQI
20th Jul 2026367 AMAQI
20th Jul 2026388 AMAQI
20th Jul 2026409 AMAQI
20th Jul 20266610 AMAQI
20th Jul 20265511 AMAQI
20th Jul 20265512 PMAQI
20th Jul 2026531 PMAQI
20th Jul 2026342 PMAQI
20th Jul 2026333 PMAQI
20th Jul 2026484 PMAQI
20th Jul 2026405 PMAQI
20th Jul 2026506 PMAQI
20th Jul 2026467 PMAQI
20th Jul 2026428 PMAQI
20th Jul 2026429 PMAQI
20th Jul 20265310 PMAQI
20th Jul 20264811 PMAQI
21st Jul 20264812 AMAQI
21st Jul 2026361 AMAQI
21st Jul 2026322 AMAQI
21st Jul 2026423 AMAQI

28°C22/34°C

21st Jul 2026324 AMAQI
21st Jul 2026325 AMAQI
21st Jul 2026386 AMAQI
21st Jul 2026407 AMAQI
21st Jul 2026468 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20265110 AMAQI
21st Jul 20266411 AMAQI
21st Jul 2026541 PMAQI
21st Jul 2026572 PMAQI
21st Jul 2026573 PMAQI
21st Jul 2026544 PMAQI
21st Jul 2026545 PMAQI
21st Jul 2026546 PMAQI
21st Jul 2026977 PMAQI
21st Jul 2026568 PMAQI
21st Jul 2026519 PMAQI
21st Jul 20265310 PMAQI
21st Jul 20265711 PMAQI
22nd Jul 20265612 AMAQI
22nd Jul 2026561 AMAQI
22nd Jul 2026522 AMAQI
22nd Jul 2026553 AMAQI

28°C23/35°C

22nd Jul 2026484 AMAQI
22nd Jul 2026465 AMAQI
22nd Jul 2026466 AMAQI
22nd Jul 2026507 AMAQI
22nd Jul 2026628 AMAQI
22nd Jul 2026559 AMAQI
22nd Jul 20265210 AMAQI
22nd Jul 20265611 AMAQI
22nd Jul 20265312 PMAQI
22nd Jul 2026551 PMAQI
22nd Jul 2026582 PMAQI
22nd Jul 2026673 PMAQI
22nd Jul 2026654 PMAQI
22nd Jul 2026685 PMAQI
22nd Jul 2026666 PMAQI
22nd Jul 2026677 PMAQI
22nd Jul 2026698 PMAQI
22nd Jul 2026649 PMAQI
22nd Jul 20266010 PMAQI
22nd Jul 20263611 PMAQI
23rd Jul 20264212 AMAQI
23rd Jul 2026401 AMAQI
23rd Jul 2026442 AMAQI
23rd Jul 2026503 AMAQI

28°C23/36°C

23rd Jul 2026534 AMAQI
23rd Jul 2026535 AMAQI
23rd Jul 2026536 AMAQI
23rd Jul 2026517 AMAQI
23rd Jul 2026528 AMAQI
23rd Jul 2026539 AMAQI
23rd Jul 20265610 AMAQI
23rd Jul 20265611 AMAQI
23rd Jul 20265412 PMAQI
23rd Jul 2026571 PMAQI
23rd Jul 2026552 PMAQI
23rd Jul 2026563 PMAQI
23rd Jul 2026524 PMAQI
23rd Jul 2026485 PMAQI
23rd Jul 2026466 PMAQI
23rd Jul 2026407 PMAQI
23rd Jul 2026448 PMAQI
23rd Jul 2026389 PMAQI
23rd Jul 20263310 PMAQI
23rd Jul 20263111 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026271 AMAQI
24th Jul 2026272 AMAQI
24th Jul 2026293 AMAQI

27°C22/33°C

24th Jul 2026294 AMAQI
24th Jul 2026315 AMAQI
24th Jul 2026336 AMAQI
24th Jul 2026337 AMAQI
24th Jul 2026338 AMAQI
24th Jul 2026369 AMAQI
24th Jul 20263110 AMAQI
24th Jul 20264011 AMAQI
24th Jul 20264012 PMAQI
24th Jul 2026441 PMAQI
24th Jul 2026502 PMAQI
24th Jul 2026523 PMAQI
24th Jul 2026554 PMAQI
24th Jul 2026485 PMAQI
24th Jul 2026406 PMAQI
24th Jul 2026337 PMAQI
24th Jul 2026298 PMAQI
24th Jul 2026259 PMAQI
24th Jul 20262710 PMAQI
24th Jul 20262711 PMAQI
25th Jul 20262912 AMAQI
25th Jul 2026251 AMAQI
25th Jul 2026252 AMAQI
25th Jul 2026253 AMAQI

24°C22/27°C

25th Jul 2026234 AMAQI
25th Jul 2026215 AMAQI
25th Jul 2026216 AMAQI
25th Jul 2026297 AMAQI
25th Jul 2026298 AMAQI
25th Jul 2026349 AMAQI
25th Jul 20262710 AMAQI
25th Jul 20262111 AMAQI
25th Jul 20262112 PMAQI
25th Jul 2026251 PMAQI
25th Jul 2026272 PMAQI
25th Jul 2026403 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026335 PMAQI
25th Jul 2026446 PMAQI
25th Jul 2026527 PMAQI
25th Jul 2026508 PMAQI
25th Jul 2026479 PMAQI
25th Jul 20265110 PMAQI
25th Jul 20263611 PMAQI
26th Jul 20263212 AMAQI
26th Jul 2026211 AMAQI
26th Jul 2026312 AMAQI
26th Jul 2026213 AMAQI

25°C22/30°C

26th Jul 2026304 AMAQI
26th Jul 2026425 AMAQI
26th Jul 2026276 AMAQI
26th Jul 2026277 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026279 AMAQI
26th Jul 20263610 AMAQI
26th Jul 20263611 AMAQI
26th Jul 20263412 PMAQI
26th Jul 2026341 PMAQI
26th Jul 2026362 PMAQI
26th Jul 2026383 PMAQI
26th Jul 2026364 PMAQI
26th Jul 2026315 PMAQI
26th Jul 2026366 PMAQI
26th Jul 2026387 PMAQI
26th Jul 2026348 PMAQI
26th Jul 2026319 PMAQI
26th Jul 20263810 PMAQI
26th Jul 20264611 PMAQI
27th Jul 20263612 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026382 AMAQI
27th Jul 2026233 AMAQI

23°C22/28°C

27th Jul 2026364 AMAQI
27th Jul 2026255 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026317 AMAQI
27th Jul 2026278 AMAQI
27th Jul 2026279 AMAQI
27th Jul 20263110 AMAQI
27th Jul 20262911 AMAQI
27th Jul 20262112 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026252 PMAQI
27th Jul 2026233 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026235 PMAQI
27th Jul 2026386 PMAQI
27th Jul 2026407 PMAQI
27th Jul 2026348 PMAQI
27th Jul 2026329 PMAQI
27th Jul 20263610 PMAQI
27th Jul 20262711 PMAQI
28th Jul 20263012 AMAQI
28th Jul 2026321 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026273 AMAQI

23°C19/27°C

28th Jul 2026254 AMAQI
28th Jul 2026255 AMAQI
28th Jul 2026346 AMAQI
28th Jul 2026297 AMAQI
28th Jul 2026328 AMAQI
28th Jul 2026299 AMAQI
28th Jul 20263410 AMAQI
28th Jul 20264911 AMAQI
28th Jul 20262512 PMAQI
28th Jul 2026311 PMAQI
28th Jul 2026482 PMAQI
28th Jul 2026513 PMAQI
28th Jul 2026444 PMAQI
28th Jul 2026505 PMAQI
28th Jul 2026386 PMAQI
28th Jul 2026317 PMAQI
28th Jul 2026448 PMAQI
28th Jul 2026579 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20265411 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026401 AMAQI
29th Jul 2026462 AMAQI
29th Jul 2026503 AMAQI

22°C20/26°C

29th Jul 2026504 AMAQI
29th Jul 2026425 AMAQI
29th Jul 2026486 AMAQI
29th Jul 2026367 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026389 AMAQI
29th Jul 20264410 AMAQI
29th Jul 20264911 AMAQI
29th Jul 20263612 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026252 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026194 PMAQI
29th Jul 2026315 PMAQI
29th Jul 2026296 PMAQI
29th Jul 2026297 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026329 PMAQI
29th Jul 20263410 PMAQI
29th Jul 20262711 PMAQI
30th Jul 20262112 AMAQI
30th Jul 2026291 AMAQI
30th Jul 2026402 AMAQI
30th Jul 2026473 AMAQI

23°C19/29°C

30th Jul 2026324 AMAQI
30th Jul 2026475 AMAQI
30th Jul 2026426 AMAQI
30th Jul 2026447 AMAQI
30th Jul 2026368 AMAQI
30th Jul 2026369 AMAQI
30th Jul 20264010 AMAQI
30th Jul 20264211 AMAQI
30th Jul 20263612 PMAQI
30th Jul 2026401 PMAQI
30th Jul 2026322 PMAQI
30th Jul 2026343 PMAQI
30th Jul 2026344 PMAQI
30th Jul 2026385 PMAQI
30th Jul 2026326 PMAQI
30th Jul 2026387 PMAQI
30th Jul 2026408 PMAQI
30th Jul 2026389 PMAQI
30th Jul 20264010 PMAQI
30th Jul 20264211 PMAQI
31st Jul 20264012 AMAQI
31st Jul 2026461 AMAQI
31st Jul 2026362 AMAQI
31st Jul 2026443 AMAQI

26°C21/31°C

31st Jul 2026364 AMAQI
31st Jul 2026445 AMAQI
31st Jul 2026426 AMAQI
31st Jul 2026447 AMAQI
31st Jul 2026518 AMAQI
31st Jul 2026469 AMAQI
31st Jul 20264210 AMAQI
31st Jul 20264411 AMAQI
31st Jul 20263812 PMAQI
31st Jul 2026251 PMAQI
31st Jul 2026382 PMAQI
31st Jul 2026363 PMAQI
31st Jul 2026324 PMAQI
31st Jul 2026335 PMAQI
31st Jul 2026346 PMAQI
31st Jul 2026367 PMAQI
31st Jul 2026408 PMAQI
31st Jul 2026329 PMAQI
31st Jul 20262910 PMAQI
31st Jul 20263111 PMAQI
1st Aug 20263612 AMAQI
1st Aug 2026481 AMAQI
1st Aug 2026522 AMAQI
1st Aug 2026453 AMAQI

25°C21/30°C

1st Aug 2026504 AMAQI
1st Aug 2026555 AMAQI
1st Aug 2026446 AMAQI
1st Aug 2026447 AMAQI
1st Aug 2026498 AMAQI
1st Aug 2026489 AMAQI
1st Aug 20264410 AMAQI
1st Aug 20265011 AMAQI
1st Aug 20265312 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026422 PMAQI
1st Aug 2026383 PMAQI
1st Aug 2026384 PMAQI
1st Aug 2026445 PMAQI
1st Aug 2026386 PMAQI
1st Aug 2026347 PMAQI
1st Aug 2026368 PMAQI
1st Aug 2026559 PMAQI
1st Aug 20265010 PMAQI
1st Aug 20265111 PMAQI
2nd Aug 20264712 AMAQI
2nd Aug 2026511 AMAQI
2nd Aug 2026472 AMAQI
2nd Aug 2026463 AMAQI

26°C21/32°C

2nd Aug 2026404 AMAQI
2nd Aug 2026495 AMAQI
2nd Aug 2026406 AMAQI
2nd Aug 2026347 AMAQI
2nd Aug 2026488 AMAQI
2nd Aug 2026509 AMAQI
2nd Aug 20264910 AMAQI
2nd Aug 20265511 AMAQI
2nd Aug 20265612 PMAQI
2nd Aug 2026561 PMAQI
2nd Aug 2026342 PMAQI
2nd Aug 2026583 PMAQI
2nd Aug 2026544 PMAQI
2nd Aug 2026445 PMAQI
2nd Aug 2026296 PMAQI
2nd Aug 2026257 PMAQI
2nd Aug 2026258 PMAQI
2nd Aug 2026179 PMAQI
2nd Aug 20261710 PMAQI
2nd Aug 20261211 PMAQI
3rd Aug 20261212 AMAQI
3rd Aug 2026121 AMAQI
3rd Aug 2026172 AMAQI
3rd Aug 2026123 AMAQI

25°C20/32°C

3rd Aug 2026144 AMAQI
3rd Aug 2026175 AMAQI
3rd Aug 2026176 AMAQI
3rd Aug 2026177 AMAQI
3rd Aug 2026128 AMAQI
3rd Aug 2026179 AMAQI
3rd Aug 20261910 AMAQI
3rd Aug 20261711 AMAQI
3rd Aug 20262112 PMAQI
3rd Aug 2026191 PMAQI
3rd Aug 2026172 PMAQI
3rd Aug 2026213 PMAQI
3rd Aug 2026214 PMAQI
3rd Aug 2026215 PMAQI
3rd Aug 2026216 PMAQI
3rd Aug 2026257 PMAQI
3rd Aug 2026218 PMAQI
3rd Aug 2026219 PMAQI
3rd Aug 20262110 PMAQI
3rd Aug 20262711 PMAQI
4th Aug 20262112 AMAQI
4th Aug 2026251 AMAQI
4th Aug 2026332 AMAQI
4th Aug 2026213 AMAQI

21°C20/22°C

4th Aug 2026214 AMAQI
4th Aug 2026235 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026217 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026259 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262111 AMAQI
4th Aug 20262112 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026232 PMAQI
4th Aug 2026363 PMAQI
4th Aug 2026294 PMAQI
4th Aug 2026385 PMAQI
4th Aug 2026386 PMAQI
4th Aug 2026447 PMAQI
4th Aug 2026448 PMAQI
4th Aug 2026529 PMAQI
4th Aug 20264910 PMAQI
4th Aug 20265111 PMAQI
5th Aug 20263412 AMAQI
5th Aug 2026381 AMAQI
5th Aug 2026382 AMAQI
5th Aug 2026323 AMAQI

21°C16/28°C

5th Aug 2026254 AMAQI
5th Aug 2026255 AMAQI
5th Aug 2026216 AMAQI
5th Aug 2026217 AMAQI
5th Aug 2026328 AMAQI
5th Aug 2026239 AMAQI
5th Aug 20262910 AMAQI
5th Aug 20263111 AMAQI
5th Aug 20263412 PMAQI
5th Aug 2026361 PMAQI
5th Aug 2026362 PMAQI
5th Aug 2026273 PMAQI
5th Aug 2026384 PMAQI
5th Aug 2026425 PMAQI
5th Aug 2026346 PMAQI
5th Aug 2026337 PMAQI
5th Aug 2026278 PMAQI
5th Aug 2026299 PMAQI
5th Aug 20264210 PMAQI
5th Aug 20265111 PMAQI
6th Aug 20264012 AMAQI
6th Aug 2026471 AMAQI
6th Aug 2026342 AMAQI
6th Aug 2026273 AMAQI

23°C16/30°C

6th Aug 2026254 AMAQI
6th Aug 2026295 AMAQI
6th Aug 2026406 AMAQI
6th Aug 2026447 AMAQI
6th Aug 2026468 AMAQI
6th Aug 2026499 AMAQI
6th Aug 20265610 AMAQI
6th Aug 20264911 AMAQI
6th Aug 20265212 PMAQI
6th Aug 2026461 PMAQI
6th Aug 2026422 PMAQI
6th Aug 2026343 PMAQI
6th Aug 2026294 PMAQI
6th Aug 2026315 PMAQI
6th Aug 2026366 PMAQI
6th Aug 2026257 PMAQI
6th Aug 2026318 PMAQI
6th Aug 2026319 PMAQI
6th Aug 20264010 PMAQI
6th Aug 20263311 PMAQI
7th Aug 20265412 AMAQI
7th Aug 2026581 AMAQI
7th Aug 2026442 AMAQI
7th Aug 2026533 AMAQI

26°C22/32°C

7th Aug 2026494 AMAQI
7th Aug 2026515 AMAQI
7th Aug 2026386 AMAQI
7th Aug 2026477 AMAQI
7th Aug 2026448 AMAQI
7th Aug 2026429 AMAQI
7th Aug 20264810 AMAQI
7th Aug 20265111 AMAQI
7th Aug 20263312 PMAQI
7th Aug 2026421 PMAQI
7th Aug 2026552 PMAQI
7th Aug 2026383 PMAQI
7th Aug 2026334 PMAQI
7th Aug 2026275 PMAQI
7th Aug 2026276 PMAQI
7th Aug 2026297 PMAQI
7th Aug 2026368 PMAQI
7th Aug 2026279 PMAQI
7th Aug 20264210 PMAQI
7th Aug 20265311 PMAQI
8th Aug 20265312 AMAQI
8th Aug 2026571 AMAQI
8th Aug 2026512 AMAQI
8th Aug 2026423 AMAQI

26°C23/33°C

8th Aug 2026424 AMAQI
8th Aug 2026275 AMAQI
8th Aug 2026236 AMAQI
8th Aug 2026237 AMAQI
8th Aug 2026288 AMAQI
8th Aug 2026279 AMAQI
8th Aug 20262510 AMAQI
8th Aug 20262711 AMAQI
8th Aug 20263412 PMAQI
8th Aug 2026231 PMAQI
8th Aug 2026252 PMAQI
8th Aug 2026253 PMAQI
8th Aug 2026274 PMAQI
8th Aug 2026275 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026297 PMAQI
8th Aug 2026278 PMAQI
8th Aug 2026239 PMAQI
8th Aug 20262510 PMAQI
8th Aug 20264611 PMAQI
9th Aug 20262512 AMAQI
9th Aug 2026231 AMAQI
9th Aug 2026212 AMAQI
9th Aug 2026253 AMAQI

26°C22/33°C

9th Aug 2026404 AMAQI
9th Aug 2026325 AMAQI
9th Aug 2026316 AMAQI
9th Aug 2026317 AMAQI
9th Aug 2026338 AMAQI
9th Aug 2026349 AMAQI
9th Aug 20263010 AMAQI
9th Aug 20263311 AMAQI
9th Aug 20262712 PMAQI
9th Aug 2026231 PMAQI
9th Aug 2026292 PMAQI
9th Aug 2026313 PMAQI
9th Aug 2026334 PMAQI
9th Aug 2026305 PMAQI
9th Aug 2026276 PMAQI
9th Aug 2026257 PMAQI
9th Aug 2026298 PMAQI
9th Aug 2026349 PMAQI
9th Aug 20263810 PMAQI
9th Aug 20262911 PMAQI
10th Aug 20263112 AMAQI
10th Aug 2026271 AMAQI
10th Aug 2026272 AMAQI
10th Aug 2026273 AMAQI

25°C21/30°C

10th Aug 2026254 AMAQI
10th Aug 2026275 AMAQI
10th Aug 2026296 AMAQI
10th Aug 2026297 AMAQI
10th Aug 2026368 AMAQI
10th Aug 2026499 AMAQI
10th Aug 20265110 AMAQI
10th Aug 20264011 AMAQI
10th Aug 20264612 PMAQI
10th Aug 2026441 PMAQI
10th Aug 2026232 PMAQI
10th Aug 2026253 PMAQI
10th Aug 2026344 PMAQI
10th Aug 2026235 PMAQI
10th Aug 2026366 PMAQI
10th Aug 2026277 PMAQI
10th Aug 2026328 PMAQI
10th Aug 2026299 PMAQI
10th Aug 20263610 PMAQI
10th Aug 20264011 PMAQI
11th Aug 20264212 AMAQI
11th Aug 2026501 AMAQI
11th Aug 2026362 AMAQI
11th Aug 2026443 AMAQI

23°C19/29°C

11th Aug 2026444 AMAQI
11th Aug 2026455 AMAQI
11th Aug 2026526 AMAQI
11th Aug 2026527 AMAQI
11th Aug 2026528 AMAQI
11th Aug 2026519 AMAQI
11th Aug 20265510 AMAQI
11th Aug 20266211 AMAQI
11th Aug 20265612 PMAQI
11th Aug 2026491 PMAQI
11th Aug 2026402 PMAQI
11th Aug 2026293 PMAQI
11th Aug 2026314 PMAQI
11th Aug 2026365 PMAQI
11th Aug 2026306 PMAQI
11th Aug 2026347 PMAQI
11th Aug 2026278 PMAQI
11th Aug 2026259 PMAQI
11th Aug 20264710 PMAQI
11th Aug 20263611 PMAQI
12th Aug 20262712 AMAQI
12th Aug 2026401 AMAQI
12th Aug 2026312 AMAQI
12th Aug 2026403 AMAQI

19°C17/23°C

12th Aug 2026324 AMAQI
12th Aug 2026365 AMAQI
12th Aug 2026366 AMAQI
12th Aug 2026387 AMAQI
12th Aug 2026328 AMAQI
12th Aug 2026409 AMAQI
12th Aug 20264910 AMAQI
12th Aug 20263811 AMAQI
12th Aug 20265712 PMAQI
12th Aug 2026441 PMAQI
12th Aug 2026482 PMAQI
12th Aug 2026463 PMAQI
12th Aug 2026384 PMAQI
12th Aug 2026425 PMAQI
12th Aug 2026336 PMAQI
12th Aug 2026367 PMAQI
12th Aug 2026298 PMAQI
12th Aug 2026309 PMAQI
12th Aug 20263310 PMAQI
12th Aug 20263211 PMAQI
13th Aug 20262312 AMAQI
13th Aug 2026271 AMAQI
13th Aug 2026252 AMAQI
13th Aug 2026213 AMAQI

20°C19/22°C

13th Aug 2026344 AMAQI
4 AM
13th Aug 2026345 AMAQI
13th Aug 2026296 AMAQI
13th Aug 2026277 AMAQI
13th Aug 2026258 AMAQI
13th Aug 2026509 AMAQI
13th Aug 20264810 AMAQI
13th Aug 20263811 AMAQI
11 AM
13th Aug 20263612 PMAQI
13th Aug 2026361 PMAQI
13th Aug 2026402 PMAQI
13th Aug 2026313 PMAQI
13th Aug 2026364 PMAQI
13th Aug 2026235 PMAQI
13th Aug 2026276 PMAQI
6 PM
13th Aug 2026297 PMAQI
13th Aug 2026368 PMAQI
13th Aug 2026309 PMAQI
13th Aug 20263310 PMAQI
13th Aug 20263111 PMAQI
11 PM
3 AM

23°C20/27°C

Day time
Avg. Highest Time
11 AM

43AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
4 AM - 8 AM

36AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 11 AM (Avg. 43), while the lowest AQI was between 4 AM to 8 AM (Avg. 36).
Night time
Avg. Highest Time
10 PM - 11 PM

40AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 9 PM

37AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 40), while the lowest AQI was between 12 AM to 9 PM (Avg. 37).

2026 Days Vs Air Quality

Honcho, Otawara, Tochigi, Japan

2026

85%

192

15%

33

Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)

Good
192 Days
Moderate
33 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 85%

Health Risk Level:

Low

In 2026, 85% of 225 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

Honcho, Otawara, Tochigi, 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
15AQI (US)
2nd January 2026
17AQI (US)
3rd January 2026
20AQI (US)
4th January 2026
21AQI (US)
5th January 2026
21AQI (US)
6th January 2026
20AQI (US)
7th January 2026
28AQI (US)
8th January 2026
24AQI (US)
9th January 2026
24AQI (US)
10th January 2026
32AQI (US)
11th January 2026
33AQI (US)
12th January 2026
15AQI (US)
13th January 2026
23AQI (US)
14th January 2026
14AQI (US)
15th January 2026
29AQI (US)
16th January 2026
43AQI (US)
17th January 2026
43AQI (US)
18th January 2026
19AQI (US)
19th January 2026
36AQI (US)
20th January 2026
26AQI (US)
21st January 2026
16AQI (US)
22nd January 2026
25AQI (US)
23rd January 2026
52AQI (US)
24th January 2026
51AQI (US)
25th January 2026
43AQI (US)
26th January 2026
19AQI (US)
27th January 2026
24AQI (US)
28th January 2026
27AQI (US)
29th January 2026
24AQI (US)
30th January 2026
38AQI (US)
31st January 2026
40AQI (US)
1st February 2026
44AQI (US)
2nd February 2026
17AQI (US)
3rd February 2026
21AQI (US)
4th February 2026
50AQI (US)
5th February 2026
46AQI (US)
6th February 2026
38AQI (US)
7th February 2026
13AQI (US)
8th February 2026
14AQI (US)
9th February 2026
41AQI (US)
10th February 2026
49AQI (US)
11th February 2026
50AQI (US)
12th February 2026
18AQI (US)
13th February 2026
31AQI (US)
14th February 2026
68AQI (US)
15th February 2026
61AQI (US)
16th February 2026
35AQI (US)
17th February 2026
16AQI (US)
18th February 2026
32AQI (US)
19th February 2026
30AQI (US)
20th February 2026
31AQI (US)
21st February 2026
46AQI (US)
22nd February 2026
43AQI (US)
23rd February 2026
45AQI (US)
24th February 2026
32AQI (US)
25th February 2026
33AQI (US)
26th February 2026
13AQI (US)
27th February 2026
43AQI (US)
28th February 2026
46AQI (US)
1st March 2026
50AQI (US)
2nd March 2026
92AQI (US)
3rd March 2026
53AQI (US)
4th March 2026
71AQI (US)
5th March 2026
67AQI (US)
6th March 2026
56AQI (US)
7th March 2026
49AQI (US)
8th March 2026
53AQI (US)
9th March 2026
44AQI (US)
10th March 2026
56AQI (US)
11th March 2026
59AQI (US)
12th March 2026
72AQI (US)
13th March 2026
47AQI (US)
14th March 2026
50AQI (US)
15th March 2026
61AQI (US)
16th March 2026
66AQI (US)
17th March 2026
59AQI (US)
18th March 2026
61AQI (US)
19th March 2026
39AQI (US)
20th March 2026
30AQI (US)
21st March 2026
54AQI (US)
22nd March 2026
50AQI (US)
23rd March 2026
58AQI (US)
24th March 2026
57AQI (US)
25th March 2026
48AQI (US)
26th March 2026
18AQI (US)
27th March 2026
18AQI (US)
28th March 2026
48AQI (US)
29th March 2026
55AQI (US)
30th March 2026
59AQI (US)
31st March 2026
40AQI (US)
1st April 2026
12AQI (US)
2nd April 2026
26AQI (US)
3rd April 2026
48AQI (US)
4th April 2026
46AQI (US)
5th April 2026
21AQI (US)
6th April 2026
17AQI (US)
7th April 2026
30AQI (US)
8th April 2026
18AQI (US)
9th April 2026
29AQI (US)
10th April 2026
46AQI (US)
11th April 2026
37AQI (US)
12th April 2026
34AQI (US)
13th April 2026
38AQI (US)
14th April 2026
45AQI (US)
15th April 2026
46AQI (US)
16th April 2026
33AQI (US)
17th April 2026
38AQI (US)
18th April 2026
37AQI (US)
19th April 2026
40AQI (US)
20th April 2026
37AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
44AQI (US)
23rd April 2026
35AQI (US)
24th April 2026
31AQI (US)
25th April 2026
45AQI (US)
26th April 2026
49AQI (US)
27th April 2026
48AQI (US)
28th April 2026
40AQI (US)
29th April 2026
40AQI (US)
30th April 2026
40AQI (US)
1st May 2026
48AQI (US)
2nd May 2026
54AQI (US)
3rd May 2026
43AQI (US)
4th May 2026
29AQI (US)
5th May 2026
21AQI (US)
6th May 2026
35AQI (US)
7th May 2026
37AQI (US)
8th May 2026
27AQI (US)
9th May 2026
29AQI (US)
10th May 2026
36AQI (US)
11th May 2026
36AQI (US)
12th May 2026
43AQI (US)
13th May 2026
44AQI (US)
14th May 2026
38AQI (US)
15th May 2026
39AQI (US)
16th May 2026
85AQI (US)
17th May 2026
69AQI (US)
18th May 2026
53AQI (US)
19th May 2026
49AQI (US)
20th May 2026
61AQI (US)
21st May 2026
59AQI (US)
22nd May 2026
63AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
59AQI (US)
25th May 2026
48AQI (US)
26th May 2026
40AQI (US)
27th May 2026
25AQI (US)
28th May 2026
26AQI (US)
29th May 2026
24AQI (US)
30th May 2026
23AQI (US)
31st May 2026
27AQI (US)
1st June 2026
28AQI (US)
2nd June 2026
33AQI (US)
3rd June 2026
23AQI (US)
4th June 2026
17AQI (US)
5th June 2026
22AQI (US)
6th June 2026
23AQI (US)
7th June 2026
21AQI (US)
8th June 2026
20AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
25AQI (US)
13th June 2026
26AQI (US)
14th June 2026
29AQI (US)
15th June 2026
15AQI (US)
16th June 2026
19AQI (US)
17th June 2026
24AQI (US)
18th June 2026
25AQI (US)
19th June 2026
30AQI (US)
20th June 2026
22AQI (US)
21st June 2026
19AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
22AQI (US)
25th June 2026
27AQI (US)
26th June 2026
29AQI (US)
27th June 2026
27AQI (US)
28th June 2026
30AQI (US)
29th June 2026
28AQI (US)
30th June 2026
24AQI (US)
1st July 2026
25AQI (US)
2nd July 2026
23AQI (US)
3rd July 2026
19AQI (US)
4th July 2026
33AQI (US)
5th July 2026
28AQI (US)
6th July 2026
25AQI (US)
7th July 2026
25AQI (US)
8th July 2026
24AQI (US)
9th July 2026
24AQI (US)
10th July 2026
27AQI (US)
11th July 2026
31AQI (US)
12th July 2026
27AQI (US)
13th July 2026
28AQI (US)
14th July 2026
41AQI (US)
15th July 2026
59AQI (US)
16th July 2026
43AQI (US)
17th July 2026
47AQI (US)
18th July 2026
24AQI (US)
19th July 2026
33AQI (US)
20th July 2026
42AQI (US)
21st July 2026
50AQI (US)
22nd July 2026
57AQI (US)
23rd July 2026
48AQI (US)
24th July 2026
35AQI (US)
25th July 2026
32AQI (US)
26th July 2026
33AQI (US)
27th July 2026
29AQI (US)
28th July 2026
37AQI (US)
29th July 2026
35AQI (US)
30th July 2026
38AQI (US)
31st July 2026
38AQI (US)
1st August 2026
45AQI (US)
2nd August 2026
41AQI (US)
3rd August 2026
18AQI (US)
4th August 2026
30AQI (US)
5th August 2026
32AQI (US)
6th August 2026
38AQI (US)
7th August 2026
43AQI (US)
8th August 2026
32AQI (US)
9th August 2026
30AQI (US)
10th August 2026
33AQI (US)
11th August 2026
43AQI (US)
12th August 2026
38AQI (US)
13th August 2026
32AQI (US)
14th August 2026
15th August 2026
16th August 2026
17th August 2026
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

28AQI (US)

36AQI (US)

53AQI (US)

36AQI (US)

43AQI (US)

24AQI (US)

34AQI (US)

35AQI (US)

No. of days

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

202636AQI (US)

29
2
26
2
13
18
30
22
9
30
29
2
13
192
33

Highest AQI (US) recorded in

March

53AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202539AQI (US)

31
28
25
6
26
4
27
4
26
4
17
14
27
4
30
17
14
24
6
28
3
306
59

Highest AQI (US) recorded in

July

49AQI (US)

Lowest AQI (US) recorded in

January

31AQI (US)

202433AQI (US)

16
2
5
2
1
12
28
2
26
5
31
26
3
31
29
1
31
239
12

Highest AQI (US) recorded in

July

44AQI (US)

Lowest AQI (US) recorded in

January

18AQI (US)

202322AQI (US)

3
31
34

Highest AQI (US) recorded in

December

22AQI (US)

Lowest AQI (US) recorded in

November

17AQI (US)

202237AQI (US)

31
21
25
6
21
9
26
5
20
10
19
3
1
29
29
2
11
1
233
36

Highest AQI (US) recorded in

April

45AQI (US)

Lowest AQI (US) recorded in

October

30AQI (US)

202131AQI (US)

29
2
25
3
29
21
28
3
25
5
27
4
29
2
30
30
1
28
2
31
332
22

Highest AQI (US) recorded in

June

40AQI (US)

Lowest AQI (US) recorded in

February

25AQI (US)

202029AQI (US)

12
1
21
18
26
4
30
1
17
14
19
30
1
24
6
31
228
27

Highest AQI (US) recorded in

August

49AQI (US)

Lowest AQI (US) recorded in

December

20AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
39AQI (US)
Least Polluted Year Recorded
2023(Avg.)
22AQI (US)

Honcho's annual 2026 AQI (US) (36) shows an average percentage change of 17.09% (worsened AQI (US)) compared to previous years: 2020 (29), 2021 (31), 2022 (37), 2023 (22), 2024 (33), 2025 (39).