Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Honcho, Yaita, 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, Yaita, Tochigi, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2025
55AQI
Lowest AQI recorded on
3rd Aug 2026
10AQI

Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 23 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Day & Night AQI Trend: 14th Aug - 15th Aug 2026

Honcho, Yaita, Tochigi, Japan

AQI
Day
Night
.

4 AM14th Aug 2026

6 PM

3 AM15th Aug 2026

Day time
Avg. Highest Time
4AM14th Aug

27AQI

Avg. Lowest Time
12PM14th Aug

17AQI

Night time
Avg. Highest Time
11PM14th Aug

23AQI

Avg. Lowest Time
8PM14th Aug

14AQI

In the last 24 hours,

Honcho's AQI reached its highest point of 27 at 4 AM during the Day, while the lowest point, 14, was recorded at 8 PM during the Night between 14th Aug and 15th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Honcho, Yaita, Tochigi, Japan

JulAug
17th - 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 - 14th14th - 15th15th
Day
Night
17th Jul 2026674 AMAQI
17th Jul 2026625 AMAQI
17th Jul 2026716 AMAQI
17th Jul 2026697 AMAQI
17th Jul 2026738 AMAQI
17th Jul 2026599 AMAQI
17th Jul 20265410 AMAQI
17th Jul 20266611 AMAQI
17th Jul 20267012 PMAQI
17th Jul 2026691 PMAQI
17th Jul 2026422 PMAQI
17th Jul 2026363 PMAQI
17th Jul 2026294 PMAQI
17th Jul 2026405 PMAQI
17th Jul 2026366 PMAQI
17th Jul 2026277 PMAQI
17th Jul 2026278 PMAQI
17th Jul 2026219 PMAQI
17th Jul 20261710 PMAQI
17th Jul 20261211 PMAQI
18th Jul 20261412 AMAQI
18th Jul 2026251 AMAQI
18th Jul 2026142 AMAQI
18th Jul 2026213 AMAQI

24°C22/27°C

18th Jul 2026254 AMAQI
18th Jul 2026235 AMAQI
18th Jul 2026196 AMAQI
18th Jul 2026127 AMAQI
18th Jul 2026258 AMAQI
18th Jul 2026279 AMAQI
18th Jul 20261910 AMAQI
18th Jul 20261211 AMAQI
18th Jul 2026712 PMAQI
18th Jul 2026121 PMAQI
18th Jul 2026172 PMAQI
18th Jul 2026233 PMAQI
18th Jul 2026144 PMAQI
18th Jul 2026145 PMAQI
18th Jul 2026166 PMAQI
18th Jul 2026197 PMAQI
18th Jul 2026148 PMAQI
18th Jul 2026149 PMAQI
18th Jul 2026810 PMAQI
18th Jul 2026611 PMAQI
19th Jul 2026812 AMAQI
19th Jul 2026121 AMAQI
19th Jul 2026122 AMAQI
19th Jul 2026143 AMAQI

23°C22/26°C

19th Jul 2026144 AMAQI
19th Jul 2026165 AMAQI
19th Jul 2026216 AMAQI
19th Jul 2026267 AMAQI
19th Jul 2026298 AMAQI
19th Jul 2026189 AMAQI
19th Jul 20261610 AMAQI
19th Jul 20262111 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026424 PMAQI
19th Jul 2026275 PMAQI
19th Jul 2026216 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026368 PMAQI
19th Jul 2026429 PMAQI
19th Jul 20264610 PMAQI
19th Jul 20264611 PMAQI
20th Jul 20264412 AMAQI
20th Jul 2026441 AMAQI
20th Jul 2026422 AMAQI
20th Jul 2026443 AMAQI

25°C22/30°C

20th Jul 2026384 AMAQI
20th Jul 2026295 AMAQI
20th Jul 2026336 AMAQI
20th Jul 2026317 AMAQI
20th Jul 2026318 AMAQI
20th Jul 2026339 AMAQI
20th Jul 20264010 AMAQI
20th Jul 20264411 AMAQI
20th Jul 20264412 PMAQI
20th Jul 2026461 PMAQI
20th Jul 2026462 PMAQI
20th Jul 2026483 PMAQI
20th Jul 2026444 PMAQI
20th Jul 2026445 PMAQI
20th Jul 2026486 PMAQI
20th Jul 2026487 PMAQI
20th Jul 2026518 PMAQI
20th Jul 2026519 PMAQI
20th Jul 20265110 PMAQI
20th Jul 20265211 PMAQI
21st Jul 20265312 AMAQI
21st Jul 2026531 AMAQI
21st Jul 2026532 AMAQI
21st Jul 2026533 AMAQI

27°C21/33°C

21st Jul 2026534 AMAQI
21st Jul 2026535 AMAQI
21st Jul 2026526 AMAQI
21st Jul 2026517 AMAQI
21st Jul 2026558 AMAQI
21st Jul 2026519 AMAQI
21st Jul 20265510 AMAQI
21st Jul 20265411 AMAQI
21st Jul 2026591 PMAQI
21st Jul 2026602 PMAQI
21st Jul 2026603 PMAQI
21st Jul 2026544 PMAQI
21st Jul 2026565 PMAQI
21st Jul 2026576 PMAQI
21st Jul 2026967 PMAQI
21st Jul 2026588 PMAQI
21st Jul 2026559 PMAQI
21st Jul 20266310 PMAQI
21st Jul 20266011 PMAQI
22nd Jul 20265812 AMAQI
22nd Jul 2026541 AMAQI
22nd Jul 2026512 AMAQI
22nd Jul 2026533 AMAQI

28°C22/34°C

22nd Jul 2026494 AMAQI
22nd Jul 2026515 AMAQI
22nd Jul 2026526 AMAQI
22nd Jul 2026557 AMAQI
22nd Jul 2026588 AMAQI
22nd Jul 2026589 AMAQI
22nd Jul 20265810 AMAQI
22nd Jul 20265711 AMAQI
22nd Jul 20266312 PMAQI
22nd Jul 2026621 PMAQI
22nd Jul 2026622 PMAQI
22nd Jul 2026663 PMAQI
22nd Jul 2026694 PMAQI
22nd Jul 2026695 PMAQI
22nd Jul 2026696 PMAQI
22nd Jul 2026717 PMAQI
22nd Jul 2026678 PMAQI
22nd Jul 2026699 PMAQI
22nd Jul 20266510 PMAQI
22nd Jul 20264611 PMAQI
23rd Jul 20264412 AMAQI
23rd Jul 2026501 AMAQI
23rd Jul 2026442 AMAQI
23rd Jul 2026513 AMAQI

28°C22/35°C

23rd Jul 2026534 AMAQI
23rd Jul 2026545 AMAQI
23rd Jul 2026536 AMAQI
23rd Jul 2026517 AMAQI
23rd Jul 2026538 AMAQI
23rd Jul 2026559 AMAQI
23rd Jul 20265610 AMAQI
23rd Jul 20265911 AMAQI
23rd Jul 20265812 PMAQI
23rd Jul 2026541 PMAQI
23rd Jul 2026602 PMAQI
23rd Jul 2026593 PMAQI
23rd Jul 2026554 PMAQI
23rd Jul 2026535 PMAQI
23rd Jul 2026516 PMAQI
23rd Jul 2026507 PMAQI
23rd Jul 2026508 PMAQI
23rd Jul 2026449 PMAQI
23rd Jul 20264010 PMAQI
23rd Jul 20264011 PMAQI
24th Jul 20263312 AMAQI
24th Jul 2026311 AMAQI
24th Jul 2026312 AMAQI
24th Jul 2026313 AMAQI

26°C21/33°C

24th Jul 2026294 AMAQI
24th Jul 2026385 AMAQI
24th Jul 2026406 AMAQI
24th Jul 2026317 AMAQI
24th Jul 2026368 AMAQI
24th Jul 2026409 AMAQI
24th Jul 20263810 AMAQI
24th Jul 20264811 AMAQI
24th Jul 20264012 PMAQI
24th Jul 2026541 PMAQI
24th Jul 2026522 PMAQI
24th Jul 2026553 PMAQI
24th Jul 2026634 PMAQI
24th Jul 2026465 PMAQI
24th Jul 2026446 PMAQI
24th Jul 2026407 PMAQI
24th Jul 2026368 PMAQI
24th Jul 2026369 PMAQI
24th Jul 20263310 PMAQI
24th Jul 20263111 PMAQI
25th Jul 20263112 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026232 AMAQI
25th Jul 2026213 AMAQI

24°C21/27°C

25th Jul 2026314 AMAQI
25th Jul 2026275 AMAQI
25th Jul 2026296 AMAQI
25th Jul 2026317 AMAQI
25th Jul 2026408 AMAQI
25th Jul 2026429 AMAQI
25th Jul 20262710 AMAQI
25th Jul 20262111 AMAQI
25th Jul 20262112 PMAQI
25th Jul 2026251 PMAQI
25th Jul 2026272 PMAQI
25th Jul 2026253 PMAQI
25th Jul 2026254 PMAQI
25th Jul 2026235 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026238 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262310 PMAQI
25th Jul 20262111 PMAQI
26th Jul 20264212 AMAQI
26th Jul 2026251 AMAQI
26th Jul 2026272 AMAQI
26th Jul 2026273 AMAQI

25°C22/30°C

26th Jul 2026274 AMAQI
26th Jul 2026275 AMAQI
26th Jul 2026276 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026239 AMAQI
26th Jul 20262110 AMAQI
26th Jul 20262511 AMAQI
26th Jul 20262912 PMAQI
26th Jul 2026291 PMAQI
26th Jul 2026252 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026254 PMAQI
26th Jul 2026295 PMAQI
26th Jul 2026296 PMAQI
26th Jul 2026337 PMAQI
26th Jul 2026298 PMAQI
26th Jul 2026299 PMAQI
26th Jul 20263110 PMAQI
26th Jul 20263111 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026382 AMAQI
27th Jul 2026213 AMAQI

23°C21/27°C

27th Jul 2026254 AMAQI
27th Jul 2026215 AMAQI
27th Jul 2026236 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026238 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20262710 AMAQI
27th Jul 20263111 AMAQI
27th Jul 20262512 PMAQI
27th Jul 2026231 PMAQI
27th Jul 2026232 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026294 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026216 PMAQI
27th Jul 2026257 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026219 PMAQI
27th Jul 20262110 PMAQI
27th Jul 20262111 PMAQI
28th Jul 20262112 AMAQI
28th Jul 2026211 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026233 AMAQI

22°C18/27°C

28th Jul 2026234 AMAQI
28th Jul 2026215 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026218 AMAQI
28th Jul 2026219 AMAQI
28th Jul 20262110 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20262512 PMAQI
28th Jul 2026211 PMAQI
28th Jul 2026292 PMAQI
28th Jul 2026293 PMAQI
28th Jul 2026294 PMAQI
28th Jul 2026335 PMAQI
28th Jul 2026386 PMAQI
28th Jul 2026387 PMAQI
28th Jul 2026408 PMAQI
28th Jul 2026449 PMAQI
28th Jul 20264410 PMAQI
28th Jul 20264411 PMAQI
29th Jul 20264412 AMAQI
29th Jul 2026461 AMAQI
29th Jul 2026482 AMAQI
29th Jul 2026533 AMAQI

22°C20/26°C

29th Jul 2026504 AMAQI
29th Jul 2026505 AMAQI
29th Jul 2026496 AMAQI
29th Jul 2026487 AMAQI
29th Jul 2026428 AMAQI
29th Jul 2026509 AMAQI
29th Jul 20265110 AMAQI
29th Jul 20265011 AMAQI
29th Jul 20264012 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026252 PMAQI
29th Jul 2026233 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026255 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026237 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20262310 PMAQI
29th Jul 20262311 PMAQI
30th Jul 20262312 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026212 AMAQI
30th Jul 2026213 AMAQI

23°C18/28°C

30th Jul 2026214 AMAQI
30th Jul 2026215 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026218 AMAQI
30th Jul 2026239 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262112 PMAQI
30th Jul 2026231 PMAQI
30th Jul 2026272 PMAQI
30th Jul 2026293 PMAQI
30th Jul 2026274 PMAQI
30th Jul 2026295 PMAQI
30th Jul 2026316 PMAQI
30th Jul 2026317 PMAQI
30th Jul 2026338 PMAQI
30th Jul 2026369 PMAQI
30th Jul 20263110 PMAQI
30th Jul 20263611 PMAQI
31st Jul 20263112 AMAQI
31st Jul 2026291 AMAQI
31st Jul 2026312 AMAQI
31st Jul 2026313 AMAQI

25°C21/30°C

31st Jul 2026294 AMAQI
31st Jul 2026295 AMAQI
31st Jul 2026276 AMAQI
31st Jul 2026277 AMAQI
31st Jul 2026278 AMAQI
31st Jul 2026339 AMAQI
31st Jul 20262910 AMAQI
31st Jul 20263111 AMAQI
31st Jul 20263612 PMAQI
31st Jul 2026331 PMAQI
31st Jul 2026382 PMAQI
31st Jul 2026363 PMAQI
31st Jul 2026364 PMAQI
31st Jul 2026335 PMAQI
31st Jul 2026366 PMAQI
31st Jul 2026367 PMAQI
31st Jul 2026368 PMAQI
31st Jul 2026369 PMAQI
31st Jul 20263610 PMAQI
31st Jul 20263611 PMAQI
1st Aug 20263812 AMAQI
1st Aug 2026401 AMAQI
1st Aug 2026402 AMAQI
1st Aug 2026403 AMAQI

24°C21/29°C

1st Aug 2026404 AMAQI
1st Aug 2026385 AMAQI
1st Aug 2026406 AMAQI
1st Aug 2026447 AMAQI
1st Aug 2026428 AMAQI
1st Aug 2026469 AMAQI
1st Aug 20264610 AMAQI
1st Aug 20264611 AMAQI
1st Aug 20265012 PMAQI
1st Aug 2026541 PMAQI
1st Aug 2026512 PMAQI
1st Aug 2026523 PMAQI
1st Aug 2026544 PMAQI
1st Aug 2026535 PMAQI
1st Aug 2026526 PMAQI
1st Aug 2026517 PMAQI
1st Aug 2026528 PMAQI
1st Aug 2026529 PMAQI
1st Aug 20265310 PMAQI
1st Aug 20264911 PMAQI
2nd Aug 20265012 AMAQI
2nd Aug 2026481 AMAQI
2nd Aug 2026462 AMAQI
2nd Aug 2026443 AMAQI

25°C20/32°C

2nd Aug 2026444 AMAQI
2nd Aug 2026445 AMAQI
2nd Aug 2026446 AMAQI
2nd Aug 2026427 AMAQI
2nd Aug 2026408 AMAQI
2nd Aug 2026409 AMAQI
2nd Aug 20264210 AMAQI
2nd Aug 20264611 AMAQI
2nd Aug 20264212 PMAQI
2nd Aug 2026521 PMAQI
2nd Aug 2026542 PMAQI
2nd Aug 2026643 PMAQI
2nd Aug 2026564 PMAQI
2nd Aug 2026505 PMAQI
2nd Aug 2026236 PMAQI
2nd Aug 2026367 PMAQI
2nd Aug 2026408 PMAQI
2nd Aug 202669 PMAQI
2nd Aug 2026810 PMAQI
2nd Aug 2026611 PMAQI
3rd Aug 2026612 AMAQI
3rd Aug 2026121 AMAQI
3rd Aug 202682 AMAQI
3rd Aug 202663 AMAQI

25°C20/31°C

3rd Aug 202684 AMAQI
3rd Aug 202685 AMAQI
3rd Aug 202686 AMAQI
3rd Aug 202647 AMAQI
3rd Aug 202688 AMAQI
3rd Aug 202689 AMAQI
3rd Aug 2026810 AMAQI
3rd Aug 2026811 AMAQI
3rd Aug 2026812 PMAQI
3rd Aug 202681 PMAQI
3rd Aug 2026122 PMAQI
3rd Aug 2026123 PMAQI
3rd Aug 2026124 PMAQI
3rd Aug 2026125 PMAQI
3rd Aug 2026146 PMAQI
3rd Aug 2026127 PMAQI
3rd Aug 2026128 PMAQI
3rd Aug 2026199 PMAQI
3rd Aug 20261410 PMAQI
3rd Aug 20261911 PMAQI
4th Aug 20261912 AMAQI
4th Aug 2026101 AMAQI
4th Aug 2026192 AMAQI
4th Aug 2026173 AMAQI

21°C20/22°C

4th Aug 2026134 AMAQI
4th Aug 2026175 AMAQI
4th Aug 2026126 AMAQI
4th Aug 2026257 AMAQI
4th Aug 2026258 AMAQI
4th Aug 2026179 AMAQI
4th Aug 20261910 AMAQI
4th Aug 20262511 AMAQI
4th Aug 20262912 PMAQI
4th Aug 2026291 PMAQI
4th Aug 2026232 PMAQI
4th Aug 2026213 PMAQI
4th Aug 2026214 PMAQI
4th Aug 2026235 PMAQI
4th Aug 2026256 PMAQI
4th Aug 2026237 PMAQI
4th Aug 2026278 PMAQI
4th Aug 2026239 PMAQI
4th Aug 20262510 PMAQI
4th Aug 20262311 PMAQI
5th Aug 20262512 AMAQI
5th Aug 2026231 AMAQI
5th Aug 2026252 AMAQI
5th Aug 2026253 AMAQI

21°C17/27°C

5th Aug 2026234 AMAQI
5th Aug 2026255 AMAQI
5th Aug 2026236 AMAQI
5th Aug 2026257 AMAQI
5th Aug 2026258 AMAQI
5th Aug 2026259 AMAQI
5th Aug 20262910 AMAQI
5th Aug 20262711 AMAQI
5th Aug 20262712 PMAQI
5th Aug 2026361 PMAQI
5th Aug 2026292 PMAQI
5th Aug 2026293 PMAQI
5th Aug 2026294 PMAQI
5th Aug 2026295 PMAQI
5th Aug 2026276 PMAQI
5th Aug 2026337 PMAQI
5th Aug 2026278 PMAQI
5th Aug 2026299 PMAQI
5th Aug 20262910 PMAQI
5th Aug 20262711 PMAQI
6th Aug 20262912 AMAQI
6th Aug 2026271 AMAQI
6th Aug 2026292 AMAQI
6th Aug 2026253 AMAQI

22°C15/29°C

6th Aug 2026254 AMAQI
6th Aug 2026275 AMAQI
6th Aug 2026276 AMAQI
6th Aug 2026257 AMAQI
6th Aug 2026258 AMAQI
6th Aug 2026239 AMAQI
6th Aug 20262510 AMAQI
6th Aug 20262911 AMAQI
6th Aug 20262712 PMAQI
6th Aug 2026271 PMAQI
6th Aug 2026272 PMAQI
6th Aug 2026233 PMAQI
6th Aug 2026214 PMAQI
6th Aug 2026215 PMAQI
6th Aug 2026216 PMAQI
6th Aug 2026217 PMAQI
6th Aug 2026218 PMAQI
6th Aug 2026219 PMAQI
6th Aug 20262310 PMAQI
6th Aug 20262311 PMAQI
7th Aug 20262312 AMAQI
7th Aug 2026211 AMAQI
7th Aug 2026212 AMAQI
7th Aug 2026233 AMAQI

25°C21/32°C

7th Aug 2026214 AMAQI
7th Aug 2026215 AMAQI
7th Aug 2026216 AMAQI
7th Aug 2026217 AMAQI
7th Aug 2026218 AMAQI
7th Aug 2026219 AMAQI
7th Aug 20262110 AMAQI
7th Aug 20262311 AMAQI
7th Aug 20262712 PMAQI
7th Aug 2026441 PMAQI
7th Aug 2026212 PMAQI
7th Aug 2026213 PMAQI
7th Aug 2026234 PMAQI
7th Aug 2026275 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026277 PMAQI
7th Aug 2026258 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20262310 PMAQI
7th Aug 20262311 PMAQI
8th Aug 20262512 AMAQI
8th Aug 2026231 AMAQI
8th Aug 2026232 AMAQI
8th Aug 2026233 AMAQI

26°C22/32°C

8th Aug 2026214 AMAQI
8th Aug 2026235 AMAQI
8th Aug 2026216 AMAQI
8th Aug 2026217 AMAQI
8th Aug 2026218 AMAQI
8th Aug 2026239 AMAQI
8th Aug 20262310 AMAQI
8th Aug 20262511 AMAQI
8th Aug 20262512 PMAQI
8th Aug 2026251 PMAQI
8th Aug 2026272 PMAQI
8th Aug 2026253 PMAQI
8th Aug 2026254 PMAQI
8th Aug 2026255 PMAQI
8th Aug 2026296 PMAQI
8th Aug 2026297 PMAQI
8th Aug 2026218 PMAQI
8th Aug 2026219 PMAQI
8th Aug 20262110 PMAQI
8th Aug 20262111 PMAQI
9th Aug 20262312 AMAQI
9th Aug 2026231 AMAQI
9th Aug 2026212 AMAQI
9th Aug 2026213 AMAQI

25°C21/32°C

9th Aug 2026274 AMAQI
9th Aug 2026345 AMAQI
9th Aug 2026216 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026258 AMAQI
9th Aug 2026219 AMAQI
9th Aug 20262110 AMAQI
9th Aug 20262111 AMAQI
9th Aug 20262512 PMAQI
9th Aug 2026251 PMAQI
9th Aug 2026252 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026254 PMAQI
9th Aug 2026255 PMAQI
9th Aug 2026296 PMAQI
9th Aug 2026337 PMAQI
9th Aug 2026338 PMAQI
9th Aug 2026349 PMAQI
9th Aug 20262910 PMAQI
9th Aug 20262311 PMAQI
10th Aug 20262512 AMAQI
10th Aug 2026251 AMAQI
10th Aug 2026212 AMAQI
10th Aug 2026233 AMAQI

24°C21/29°C

10th Aug 2026214 AMAQI
10th Aug 2026215 AMAQI
10th Aug 2026216 AMAQI
10th Aug 2026277 AMAQI
10th Aug 2026218 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20262110 AMAQI
10th Aug 20262111 AMAQI
10th Aug 20262112 PMAQI
10th Aug 2026211 PMAQI
10th Aug 2026212 PMAQI
10th Aug 2026213 PMAQI
10th Aug 2026214 PMAQI
10th Aug 2026215 PMAQI
10th Aug 2026216 PMAQI
10th Aug 2026217 PMAQI
10th Aug 2026218 PMAQI
10th Aug 2026239 PMAQI
10th Aug 20262110 PMAQI
10th Aug 20262511 PMAQI
11th Aug 20262712 AMAQI
11th Aug 2026291 AMAQI
11th Aug 2026312 AMAQI
11th Aug 2026333 AMAQI

23°C18/29°C

11th Aug 2026334 AMAQI
11th Aug 2026365 AMAQI
11th Aug 2026366 AMAQI
11th Aug 2026337 AMAQI
11th Aug 2026388 AMAQI
11th Aug 2026339 AMAQI
11th Aug 20263310 AMAQI
11th Aug 20263611 AMAQI
11th Aug 20263612 PMAQI
11th Aug 2026291 PMAQI
11th Aug 2026272 PMAQI
11th Aug 2026253 PMAQI
11th Aug 2026254 PMAQI
11th Aug 2026235 PMAQI
11th Aug 2026216 PMAQI
11th Aug 2026197 PMAQI
11th Aug 2026218 PMAQI
11th Aug 2026219 PMAQI
11th Aug 20262110 PMAQI
11th Aug 20262111 PMAQI
12th Aug 20262112 AMAQI
12th Aug 2026231 AMAQI
12th Aug 2026252 AMAQI
12th Aug 2026173 AMAQI

19°C15/23°C

12th Aug 2026214 AMAQI
12th Aug 2026275 AMAQI
12th Aug 2026276 AMAQI
12th Aug 2026237 AMAQI
12th Aug 2026238 AMAQI
12th Aug 2026259 AMAQI
12th Aug 20262510 AMAQI
12th Aug 20262511 AMAQI
12th Aug 20262712 PMAQI
12th Aug 2026361 PMAQI
12th Aug 2026442 PMAQI
12th Aug 2026443 PMAQI
12th Aug 2026384 PMAQI
12th Aug 2026485 PMAQI
12th Aug 2026426 PMAQI
12th Aug 2026427 PMAQI
12th Aug 2026368 PMAQI
12th Aug 2026339 PMAQI
12th Aug 20263310 PMAQI
12th Aug 20263111 PMAQI
13th Aug 20263112 AMAQI
13th Aug 2026291 AMAQI
13th Aug 2026342 AMAQI
13th Aug 2026363 AMAQI

20°C18/21°C

13th Aug 2026384 AMAQI
13th Aug 2026385 AMAQI
13th Aug 2026426 AMAQI
13th Aug 2026447 AMAQI
13th Aug 2026428 AMAQI
13th Aug 2026489 AMAQI
13th Aug 20264810 AMAQI
13th Aug 20263811 AMAQI
13th Aug 20263412 PMAQI
13th Aug 2026401 PMAQI
13th Aug 2026422 PMAQI
13th Aug 2026463 PMAQI
13th Aug 2026444 PMAQI
13th Aug 2026405 PMAQI
13th Aug 2026426 PMAQI
13th Aug 2026427 PMAQI
13th Aug 2026368 PMAQI
13th Aug 2026389 PMAQI
13th Aug 20263810 PMAQI
13th Aug 20262711 PMAQI
14th Aug 20262912 AMAQI
14th Aug 2026251 AMAQI
14th Aug 2026272 AMAQI
14th Aug 2026253 AMAQI

22°C20/26°C

14th Aug 2026274 AMAQI
14th Aug 2026215 AMAQI
14th Aug 2026236 AMAQI
14th Aug 2026217 AMAQI
14th Aug 2026218 AMAQI
14th Aug 2026219 AMAQI
14th Aug 20262110 AMAQI
14th Aug 20261711 AMAQI
14th Aug 20261712 PMAQI
14th Aug 2026191 PMAQI
14th Aug 2026192 PMAQI
14th Aug 2026193 PMAQI
14th Aug 2026214 PMAQI
14th Aug 2026235 PMAQI
14th Aug 2026216 PMAQI
14th Aug 2026197 PMAQI
14th Aug 2026148 PMAQI
14th Aug 2026169 PMAQI
14th Aug 20261910 PMAQI
14th Aug 20262311 PMAQI
15th Aug 20261712 AMAQI
15th Aug 2026211 AMAQI
15th Aug 2026212 AMAQI
15th Aug 2026233 AMAQI

22°C20/27°C

15th Aug 2026254 AMAQI
4 AM
15th Aug 2026255 AMAQI
15th Aug 2026236 AMAQI
15th Aug 2026217 AMAQI
15th Aug 2026198 AMAQI
15th Aug 2026219 AMAQI
15th Aug 20262310 AMAQI
15th Aug 20262111 AMAQI
11 AM
15th Aug 20262112 PMAQI
15th Aug 2026191 PMAQI
15th Aug 2026232 PMAQI
15th Aug 2026253 PMAQI
15th Aug 2026234 PMAQI
15th Aug 2026235 PMAQI
15th Aug 2026236 PMAQI
6 PM
15th Aug 2026257 PMAQI
15th Aug 2026238 PMAQI
15th Aug 2026299 PMAQI
15th Aug 20262710 PMAQI
15th Aug 20263111 PMAQI
11 PM
3 AM

23°C21/26°C

Day time
Avg. Highest Time
1 PM - 5 PM

33AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
4 AM - 7 AM

31AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 5 PM (Avg. 33), while the lowest AQI was between 4 AM to 7 AM (Avg. 31).
Night time
Avg. Highest Time
7 PM

34AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
11 PM

29AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 34), while the lowest AQI was between 11 PM to 11 PM (Avg. 29).

2026 Days Vs Air Quality

Honcho, Yaita, Tochigi, Japan

2026

83%

188

17%

39

Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)

Good
188 Days
Moderate
39 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 83%

Health Risk Level:

Low

In 2026, 83% of 227 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, Yaita, 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
19AQI (US)
2nd January 2026
17AQI (US)
3rd January 2026
23AQI (US)
4th January 2026
25AQI (US)
5th January 2026
22AQI (US)
6th January 2026
20AQI (US)
7th January 2026
29AQI (US)
8th January 2026
25AQI (US)
9th January 2026
25AQI (US)
10th January 2026
36AQI (US)
11th January 2026
32AQI (US)
12th January 2026
19AQI (US)
13th January 2026
25AQI (US)
14th January 2026
13AQI (US)
15th January 2026
31AQI (US)
16th January 2026
43AQI (US)
17th January 2026
45AQI (US)
18th January 2026
16AQI (US)
19th January 2026
36AQI (US)
20th January 2026
27AQI (US)
21st January 2026
16AQI (US)
22nd January 2026
28AQI (US)
23rd January 2026
53AQI (US)
24th January 2026
51AQI (US)
25th January 2026
42AQI (US)
26th January 2026
19AQI (US)
27th January 2026
24AQI (US)
28th January 2026
27AQI (US)
29th January 2026
23AQI (US)
30th January 2026
38AQI (US)
31st January 2026
41AQI (US)
1st February 2026
44AQI (US)
2nd February 2026
19AQI (US)
3rd February 2026
22AQI (US)
4th February 2026
49AQI (US)
5th February 2026
47AQI (US)
6th February 2026
40AQI (US)
7th February 2026
15AQI (US)
8th February 2026
13AQI (US)
9th February 2026
40AQI (US)
10th February 2026
49AQI (US)
11th February 2026
52AQI (US)
12th February 2026
34AQI (US)
13th February 2026
47AQI (US)
14th February 2026
70AQI (US)
15th February 2026
64AQI (US)
16th February 2026
51AQI (US)
17th February 2026
18AQI (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
47AQI (US)
24th February 2026
32AQI (US)
25th February 2026
33AQI (US)
26th February 2026
10AQI (US)
27th February 2026
43AQI (US)
28th February 2026
46AQI (US)
1st March 2026
51AQI (US)
2nd March 2026
91AQI (US)
3rd March 2026
53AQI (US)
4th March 2026
70AQI (US)
5th March 2026
66AQI (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
60AQI (US)
12th March 2026
73AQI (US)
13th March 2026
47AQI (US)
14th March 2026
49AQI (US)
15th March 2026
61AQI (US)
16th March 2026
65AQI (US)
17th March 2026
58AQI (US)
18th March 2026
61AQI (US)
19th March 2026
40AQI (US)
20th March 2026
30AQI (US)
21st March 2026
53AQI (US)
22nd March 2026
53AQI (US)
23rd March 2026
50AQI (US)
24th March 2026
44AQI (US)
25th March 2026
51AQI (US)
26th March 2026
20AQI (US)
27th March 2026
16AQI (US)
28th March 2026
48AQI (US)
29th March 2026
54AQI (US)
30th March 2026
60AQI (US)
31st March 2026
41AQI (US)
1st April 2026
13AQI (US)
2nd April 2026
25AQI (US)
3rd April 2026
48AQI (US)
4th April 2026
46AQI (US)
5th April 2026
13AQI (US)
6th April 2026
17AQI (US)
7th April 2026
30AQI (US)
8th April 2026
19AQI (US)
9th April 2026
30AQI (US)
10th April 2026
46AQI (US)
11th April 2026
36AQI (US)
12th April 2026
33AQI (US)
13th April 2026
38AQI (US)
14th April 2026
45AQI (US)
15th April 2026
46AQI (US)
16th April 2026
34AQI (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
45AQI (US)
23rd April 2026
35AQI (US)
24th April 2026
32AQI (US)
25th April 2026
45AQI (US)
26th April 2026
50AQI (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
52AQI (US)
3rd May 2026
46AQI (US)
4th May 2026
28AQI (US)
5th May 2026
21AQI (US)
6th May 2026
36AQI (US)
7th May 2026
37AQI (US)
8th May 2026
28AQI (US)
9th May 2026
29AQI (US)
10th May 2026
36AQI (US)
11th May 2026
37AQI (US)
12th May 2026
43AQI (US)
13th May 2026
45AQI (US)
14th May 2026
38AQI (US)
15th May 2026
40AQI (US)
16th May 2026
86AQI (US)
17th May 2026
69AQI (US)
18th May 2026
54AQI (US)
19th May 2026
49AQI (US)
20th May 2026
61AQI (US)
21st May 2026
60AQI (US)
22nd May 2026
61AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
59AQI (US)
25th May 2026
47AQI (US)
26th May 2026
40AQI (US)
27th May 2026
24AQI (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
36AQI (US)
3rd June 2026
23AQI (US)
4th June 2026
17AQI (US)
5th June 2026
22AQI (US)
6th June 2026
22AQI (US)
7th June 2026
20AQI (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
25AQI (US)
15th June 2026
17AQI (US)
16th June 2026
19AQI (US)
17th June 2026
25AQI (US)
18th June 2026
26AQI (US)
19th June 2026
30AQI (US)
20th June 2026
22AQI (US)
21st June 2026
19AQI (US)
22nd June 2026
18AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
21AQI (US)
25th June 2026
27AQI (US)
26th June 2026
29AQI (US)
27th June 2026
26AQI (US)
28th June 2026
29AQI (US)
29th June 2026
28AQI (US)
30th June 2026
24AQI (US)
1st July 2026
25AQI (US)
2nd July 2026
24AQI (US)
3rd July 2026
18AQI (US)
4th July 2026
33AQI (US)
5th July 2026
27AQI (US)
6th July 2026
24AQI (US)
7th July 2026
25AQI (US)
8th July 2026
24AQI (US)
9th July 2026
24AQI (US)
10th July 2026
28AQI (US)
11th July 2026
30AQI (US)
12th July 2026
27AQI (US)
13th July 2026
28AQI (US)
14th July 2026
44AQI (US)
15th July 2026
61AQI (US)
16th July 2026
47AQI (US)
17th July 2026
51AQI (US)
18th July 2026
17AQI (US)
19th July 2026
24AQI (US)
20th July 2026
43AQI (US)
21st July 2026
57AQI (US)
22nd July 2026
60AQI (US)
23rd July 2026
52AQI (US)
24th July 2026
40AQI (US)
25th July 2026
26AQI (US)
26th July 2026
28AQI (US)
27th July 2026
25AQI (US)
28th July 2026
28AQI (US)
29th July 2026
37AQI (US)
30th July 2026
25AQI (US)
31st July 2026
33AQI (US)
1st August 2026
47AQI (US)
2nd August 2026
40AQI (US)
3rd August 2026
10AQI (US)
4th August 2026
21AQI (US)
5th August 2026
27AQI (US)
6th August 2026
25AQI (US)
7th August 2026
24AQI (US)
8th August 2026
24AQI (US)
9th August 2026
26AQI (US)
10th August 2026
22AQI (US)
11th August 2026
29AQI (US)
12th August 2026
31AQI (US)
13th August 2026
39AQI (US)
14th August 2026
21AQI (US)
15th August 2026
23AQI (US)
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

29AQI (US)

38AQI (US)

52AQI (US)

36AQI (US)

43AQI (US)

24AQI (US)

33AQI (US)

27AQI (US)

No. of days

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

202636AQI (US)

29
2
24
4
12
19
30
22
9
30
26
5
15
188
39

Highest AQI (US) recorded in

March

52AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202540AQI (US)

31
27
1
24
7
25
5
27
4
27
3
14
17
24
7
30
16
15
19
11
26
5
290
75

Highest AQI (US) recorded in

July

51AQI (US)

Lowest AQI (US) recorded in

January

30AQI (US)

202436AQI (US)

30
28
1
26
5
19
11
26
5
25
5
17
14
31
28
2
31
29
1
31
321
44

Highest AQI (US) recorded in

July

48AQI (US)

Lowest AQI (US) recorded in

December

26AQI (US)

202337AQI (US)

11
2
24
7
23
7
18
13
30
1
29
1
30
1
24
5
31
220
37

Highest AQI (US) recorded in

July

48AQI (US)

Lowest AQI (US) recorded in

December

29AQI (US)

202236AQI (US)

30
1
22
26
5
22
8
26
5
21
9
21
3
1
28
29
2
11
1
237
34

Highest AQI (US) recorded in

April

43AQI (US)

Lowest AQI (US) recorded in

October

29AQI (US)

202131AQI (US)

28
3
26
2
29
21
29
2
25
5
27
4
28
3
30
30
1
28
2
31
332
22

Highest AQI (US) recorded in

June

40AQI (US)

Lowest AQI (US) recorded in

January

25AQI (US)

202032AQI (US)

12
1
21
18
25
4
1
29
2
14
17
19
27
4
25
5
31
221
33
1

Highest AQI (US) recorded in

August

53AQI (US)

Lowest AQI (US) recorded in

December

21AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
40AQI (US)
Least Polluted Year Recorded
2021(Avg.)
31AQI (US)

Honcho's annual 2026 AQI (US) (36) shows an average percentage change of 2.6% (worsened AQI (US)) compared to previous years: 2020 (32), 2021 (31), 2022 (36), 2023 (37), 2024 (36), 2025 (40).