Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Obu, Aichi, 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+

July Air Quality Analysis

Obu, Aichi, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
9th Jul 2025
84AQI
Lowest AQI recorded on
3rd Jul 2022
10AQI

Same Day Analysis (29th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 26 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 28th Jul - 29th Jul 2026

Obu, Aichi, Japan

AQI
Day
Night
.

4 AM28th Jul 2026

7 PM

3 AM29th Jul 2026

Day time
Avg. Highest Time
5PM28th Jul

54AQI

Avg. Lowest Time
6PM28th Jul

23AQI

Night time
Avg. Highest Time
9PM28th Jul

27AQI

Avg. Lowest Time
2AM29th Jul

21AQI

In the last 24 hours,

Obu's AQI reached its highest point of 54 at 5 PM during the Day, while the lowest point, 21, was recorded at 2 AM during the Night between 28th Jul and 29th Jul 2026.

Day & Night AQI Trend : Jun - Jul 2026

Obu, Aichi, Japan

JunJul
30th - 01st01st - 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
Day
Night
30th Jun 2026584 AMAQI
30th Jun 2026605 AMAQI
30th Jun 2026626 AMAQI
30th Jun 2026657 AMAQI
30th Jun 2026688 AMAQI
30th Jun 2026669 AMAQI
30th Jun 20266910 AMAQI
30th Jun 20266511 AMAQI
30th Jun 20266812 PMAQI
30th Jun 2026801 PMAQI
30th Jun 2026792 PMAQI
30th Jun 2026853 PMAQI
30th Jun 2026894 PMAQI
30th Jun 2026845 PMAQI
30th Jun 2026666 PMAQI
30th Jun 2026527 PMAQI
30th Jun 2026508 PMAQI
30th Jun 2026499 PMAQI
30th Jun 20265010 PMAQI
30th Jun 20263811 PMAQI
1st Jul 20263312 AMAQI
1st Jul 2026301 AMAQI
1st Jul 2026312 AMAQI
1st Jul 2026193 AMAQI

24°C22/26°C

1st Jul 2026384 AMAQI
1st Jul 2026475 AMAQI
1st Jul 2026506 AMAQI
1st Jul 2026507 AMAQI
1st Jul 2026498 AMAQI
1st Jul 2026509 AMAQI
1st Jul 20265510 AMAQI
1st Jul 20265711 AMAQI
1st Jul 20265312 PMAQI
1st Jul 2026581 PMAQI
1st Jul 2026622 PMAQI
1st Jul 2026583 PMAQI
1st Jul 2026574 PMAQI
1st Jul 2026615 PMAQI
1st Jul 2026626 PMAQI
1st Jul 2026507 PMAQI
1st Jul 2026458 PMAQI
1st Jul 2026419 PMAQI
1st Jul 20264410 PMAQI
1st Jul 20264411 PMAQI
2nd Jul 20264412 AMAQI
2nd Jul 2026451 AMAQI
2nd Jul 2026442 AMAQI
2nd Jul 2026343 AMAQI

24°C22/27°C

2nd Jul 2026404 AMAQI
2nd Jul 2026305 AMAQI
2nd Jul 2026286 AMAQI
2nd Jul 2026287 AMAQI
2nd Jul 2026208 AMAQI
2nd Jul 2026149 AMAQI
2nd Jul 20261610 AMAQI
2nd Jul 20262511 AMAQI
2nd Jul 20262512 PMAQI
2nd Jul 2026241 PMAQI
2nd Jul 2026402 PMAQI
2nd Jul 2026433 PMAQI
2nd Jul 2026484 PMAQI
2nd Jul 2026505 PMAQI
2nd Jul 2026346 PMAQI
2nd Jul 2026307 PMAQI
2nd Jul 2026188 PMAQI
2nd Jul 2026199 PMAQI
2nd Jul 20261810 PMAQI
2nd Jul 20261411 PMAQI
3rd Jul 20261612 AMAQI
3rd Jul 2026181 AMAQI
3rd Jul 2026202 AMAQI
3rd Jul 2026223 AMAQI

23°C21/25°C

3rd Jul 2026204 AMAQI
3rd Jul 2026195 AMAQI
3rd Jul 2026166 AMAQI
3rd Jul 2026207 AMAQI
3rd Jul 2026188 AMAQI
3rd Jul 2026169 AMAQI
3rd Jul 20262010 AMAQI
3rd Jul 20262411 AMAQI
3rd Jul 20262112 PMAQI
3rd Jul 2026301 PMAQI
3rd Jul 2026282 PMAQI
3rd Jul 2026383 PMAQI
3rd Jul 2026344 PMAQI
3rd Jul 2026455 PMAQI
3rd Jul 2026396 PMAQI
3rd Jul 2026367 PMAQI
3rd Jul 2026438 PMAQI
3rd Jul 2026299 PMAQI
3rd Jul 20262110 PMAQI
3rd Jul 20261811 PMAQI
4th Jul 20262212 AMAQI
4th Jul 2026171 AMAQI
4th Jul 2026182 AMAQI
4th Jul 2026103 AMAQI

24°C21/28°C

4th Jul 2026234 AMAQI
4th Jul 2026215 AMAQI
4th Jul 2026246 AMAQI
4th Jul 2026257 AMAQI
4th Jul 2026248 AMAQI
4th Jul 2026219 AMAQI
4th Jul 20262610 AMAQI
4th Jul 20262511 AMAQI
4th Jul 20262112 PMAQI
4th Jul 2026221 PMAQI
4th Jul 2026242 PMAQI
4th Jul 2026253 PMAQI
4th Jul 2026234 PMAQI
4th Jul 2026265 PMAQI
4th Jul 2026236 PMAQI
4th Jul 2026227 PMAQI
4th Jul 2026238 PMAQI
4th Jul 2026259 PMAQI
4th Jul 20262310 PMAQI
4th Jul 20262211 PMAQI
5th Jul 20262412 AMAQI
5th Jul 2026241 AMAQI
5th Jul 2026212 AMAQI
5th Jul 2026233 AMAQI

23°C21/24°C

5th Jul 2026224 AMAQI
5th Jul 2026225 AMAQI
5th Jul 2026226 AMAQI
5th Jul 2026207 AMAQI
5th Jul 2026208 AMAQI
5th Jul 2026199 AMAQI
5th Jul 20261810 AMAQI
5th Jul 20261811 AMAQI
5th Jul 20261812 PMAQI
5th Jul 2026181 PMAQI
5th Jul 2026202 PMAQI
5th Jul 2026223 PMAQI
5th Jul 2026204 PMAQI
5th Jul 2026185 PMAQI
5th Jul 2026186 PMAQI
5th Jul 2026197 PMAQI
5th Jul 2026208 PMAQI
5th Jul 2026249 PMAQI
5th Jul 20262110 PMAQI
5th Jul 20262211 PMAQI
6th Jul 20261612 AMAQI
6th Jul 2026251 AMAQI
6th Jul 2026252 AMAQI
6th Jul 2026243 AMAQI

22°C21/25°C

6th Jul 2026224 AMAQI
6th Jul 2026105 AMAQI
6th Jul 202686 AMAQI
6th Jul 2026107 AMAQI
6th Jul 2026198 AMAQI
6th Jul 2026209 AMAQI
6th Jul 20262510 AMAQI
6th Jul 20263811 AMAQI
6th Jul 20261812 PMAQI
6th Jul 2026171 PMAQI
6th Jul 2026202 PMAQI
6th Jul 2026223 PMAQI
6th Jul 2026204 PMAQI
6th Jul 2026165 PMAQI
6th Jul 2026156 PMAQI
6th Jul 2026187 PMAQI
6th Jul 2026248 PMAQI
6th Jul 2026249 PMAQI
6th Jul 20262010 PMAQI
6th Jul 20261811 PMAQI
7th Jul 20262512 AMAQI
7th Jul 2026261 AMAQI
7th Jul 2026282 AMAQI
7th Jul 2026263 AMAQI

22°C21/22°C

7th Jul 2026264 AMAQI
7th Jul 2026275 AMAQI
7th Jul 2026286 AMAQI
7th Jul 2026257 AMAQI
7th Jul 2026288 AMAQI
7th Jul 2026249 AMAQI
7th Jul 20262410 AMAQI
7th Jul 20262311 AMAQI
7th Jul 20262212 PMAQI
7th Jul 2026221 PMAQI
7th Jul 2026262 PMAQI
7th Jul 2026293 PMAQI
7th Jul 2026264 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026266 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026248 PMAQI
7th Jul 2026259 PMAQI
7th Jul 20262410 PMAQI
7th Jul 20262411 PMAQI
8th Jul 20262612 AMAQI
8th Jul 2026271 AMAQI
8th Jul 2026292 AMAQI
8th Jul 2026273 AMAQI

23°C21/26°C

8th Jul 2026264 AMAQI
8th Jul 2026285 AMAQI
8th Jul 2026256 AMAQI
8th Jul 2026287 AMAQI
8th Jul 2026288 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262610 AMAQI
8th Jul 20262411 AMAQI
8th Jul 20262212 PMAQI
8th Jul 2026261 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026273 PMAQI
8th Jul 2026254 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026226 PMAQI
8th Jul 2026187 PMAQI
8th Jul 2026198 PMAQI
8th Jul 2026209 PMAQI
8th Jul 20262110 PMAQI
8th Jul 20262411 PMAQI
9th Jul 20262812 AMAQI
9th Jul 2026281 AMAQI
9th Jul 2026272 AMAQI
9th Jul 2026233 AMAQI

25°C23/27°C

9th Jul 2026264 AMAQI
9th Jul 2026255 AMAQI
9th Jul 2026266 AMAQI
9th Jul 2026267 AMAQI
9th Jul 2026258 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20262210 AMAQI
9th Jul 20262211 AMAQI
9th Jul 20262212 PMAQI
9th Jul 2026211 PMAQI
9th Jul 2026232 PMAQI
9th Jul 2026253 PMAQI
9th Jul 2026264 PMAQI
9th Jul 2026265 PMAQI
9th Jul 2026246 PMAQI
9th Jul 2026247 PMAQI
9th Jul 2026248 PMAQI
9th Jul 2026249 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262611 PMAQI
10th Jul 20262512 AMAQI
10th Jul 2026261 AMAQI
10th Jul 2026262 AMAQI
10th Jul 2026163 AMAQI

25°C22/29°C

10th Jul 2026244 AMAQI
10th Jul 2026275 AMAQI
10th Jul 2026266 AMAQI
10th Jul 2026277 AMAQI
10th Jul 2026268 AMAQI
10th Jul 2026249 AMAQI
10th Jul 20262710 AMAQI
10th Jul 20262611 AMAQI
10th Jul 20262712 PMAQI
10th Jul 2026261 PMAQI
10th Jul 2026382 PMAQI
10th Jul 2026273 PMAQI
10th Jul 2026304 PMAQI
10th Jul 2026265 PMAQI
10th Jul 2026236 PMAQI
10th Jul 2026247 PMAQI
10th Jul 2026198 PMAQI
10th Jul 2026219 PMAQI
10th Jul 20261510 PMAQI
10th Jul 20261911 PMAQI
11th Jul 20261812 AMAQI
11th Jul 2026181 AMAQI
11th Jul 202672 AMAQI
11th Jul 202673 AMAQI

26°C23/30°C

11th Jul 202684 AMAQI
11th Jul 202695 AMAQI
11th Jul 2026136 AMAQI
11th Jul 2026127 AMAQI
11th Jul 2026178 AMAQI
11th Jul 2026119 AMAQI
11th Jul 20261810 AMAQI
11th Jul 20261611 AMAQI
11th Jul 20261712 PMAQI
11th Jul 2026241 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026443 PMAQI
11th Jul 2026284 PMAQI
11th Jul 2026335 PMAQI
11th Jul 2026246 PMAQI
11th Jul 2026267 PMAQI
11th Jul 2026248 PMAQI
11th Jul 2026279 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20262312 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026242 AMAQI
12th Jul 2026183 AMAQI

26°C23/29°C

12th Jul 2026244 AMAQI
12th Jul 2026265 AMAQI
12th Jul 2026266 AMAQI
12th Jul 2026277 AMAQI
12th Jul 2026268 AMAQI
12th Jul 2026289 AMAQI
12th Jul 20263210 AMAQI
12th Jul 20262811 AMAQI
12th Jul 20262312 PMAQI
12th Jul 2026221 PMAQI
12th Jul 2026222 PMAQI
12th Jul 2026223 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026286 PMAQI
12th Jul 2026287 PMAQI
12th Jul 2026268 PMAQI
12th Jul 2026409 PMAQI
12th Jul 20265810 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20266012 AMAQI
13th Jul 2026541 AMAQI
13th Jul 2026552 AMAQI
13th Jul 2026393 AMAQI

27°C25/30°C

13th Jul 2026374 AMAQI
13th Jul 2026485 AMAQI
13th Jul 2026406 AMAQI
13th Jul 2026407 AMAQI
13th Jul 2026508 AMAQI
13th Jul 2026469 AMAQI
13th Jul 20265510 AMAQI
13th Jul 20266111 AMAQI
13th Jul 20265412 PMAQI
13th Jul 2026621 PMAQI
13th Jul 2026602 PMAQI
13th Jul 2026583 PMAQI
13th Jul 2026554 PMAQI
13th Jul 2026585 PMAQI
13th Jul 2026516 PMAQI
13th Jul 2026567 PMAQI
13th Jul 2026528 PMAQI
13th Jul 2026529 PMAQI
13th Jul 20264710 PMAQI
13th Jul 20265111 PMAQI
14th Jul 20265212 AMAQI
14th Jul 2026521 AMAQI
14th Jul 2026512 AMAQI
14th Jul 2026523 AMAQI

28°C26/32°C

14th Jul 2026414 AMAQI
14th Jul 2026305 AMAQI
14th Jul 2026266 AMAQI
14th Jul 2026287 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026309 AMAQI
14th Jul 20263010 AMAQI
14th Jul 20262411 AMAQI
14th Jul 20262212 PMAQI
14th Jul 2026201 PMAQI
14th Jul 2026202 PMAQI
14th Jul 2026193 PMAQI
14th Jul 2026224 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026286 PMAQI
14th Jul 2026277 PMAQI
14th Jul 2026268 PMAQI
14th Jul 2026289 PMAQI
14th Jul 20262910 PMAQI
14th Jul 20262911 PMAQI
15th Jul 20263012 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026302 AMAQI
15th Jul 2026283 AMAQI

30°C25/35°C

15th Jul 2026264 AMAQI
15th Jul 2026305 AMAQI
15th Jul 2026246 AMAQI
15th Jul 2026287 AMAQI
15th Jul 2026288 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20263110 AMAQI
15th Jul 20262611 AMAQI
15th Jul 20262712 PMAQI
15th Jul 2026221 PMAQI
15th Jul 2026222 PMAQI
15th Jul 2026393 PMAQI
15th Jul 2026604 PMAQI
15th Jul 2026665 PMAQI
15th Jul 2026666 PMAQI
15th Jul 2026607 PMAQI
15th Jul 2026558 PMAQI
15th Jul 2026549 PMAQI
15th Jul 20265810 PMAQI
15th Jul 20265711 PMAQI
16th Jul 20265812 AMAQI
16th Jul 2026581 AMAQI
16th Jul 2026602 AMAQI
16th Jul 2026433 AMAQI

30°C27/34°C

16th Jul 2026604 AMAQI
16th Jul 2026615 AMAQI
16th Jul 2026616 AMAQI
16th Jul 2026637 AMAQI
16th Jul 2026638 AMAQI
16th Jul 2026579 AMAQI
16th Jul 20265410 AMAQI
16th Jul 20265511 AMAQI
16th Jul 20265612 PMAQI
16th Jul 2026551 PMAQI
16th Jul 2026542 PMAQI
16th Jul 2026533 PMAQI
16th Jul 2026524 PMAQI
16th Jul 2026465 PMAQI
16th Jul 2026476 PMAQI
16th Jul 2026487 PMAQI
16th Jul 2026408 PMAQI
16th Jul 2026449 PMAQI
16th Jul 20264010 PMAQI
16th Jul 20263411 PMAQI
17th Jul 20263812 AMAQI
17th Jul 2026321 AMAQI
17th Jul 2026342 AMAQI
17th Jul 2026363 AMAQI

31°C27/35°C

17th Jul 2026444 AMAQI
17th Jul 2026435 AMAQI
17th Jul 2026456 AMAQI
17th Jul 2026477 AMAQI
17th Jul 2026458 AMAQI
17th Jul 2026509 AMAQI
17th Jul 20265810 AMAQI
17th Jul 20267211 AMAQI
17th Jul 20267412 PMAQI
17th Jul 2026761 PMAQI
17th Jul 2026742 PMAQI
17th Jul 2026643 PMAQI
17th Jul 2026584 PMAQI
17th Jul 2026545 PMAQI
17th Jul 2026486 PMAQI
17th Jul 2026547 PMAQI
17th Jul 2026548 PMAQI
17th Jul 2026569 PMAQI
17th Jul 20265610 PMAQI
17th Jul 20265811 PMAQI
18th Jul 20265912 AMAQI
18th Jul 2026571 AMAQI
18th Jul 2026542 AMAQI
18th Jul 2026543 AMAQI

29°C27/32°C

18th Jul 2026544 AMAQI
18th Jul 2026585 AMAQI
18th Jul 2026586 AMAQI
18th Jul 2026557 AMAQI
18th Jul 2026548 AMAQI
18th Jul 2026549 AMAQI
18th Jul 20265210 AMAQI
18th Jul 20263911 AMAQI
18th Jul 20263312 PMAQI
18th Jul 2026341 PMAQI
18th Jul 2026412 PMAQI
18th Jul 2026423 PMAQI
18th Jul 2026414 PMAQI
18th Jul 2026395 PMAQI
18th Jul 2026376 PMAQI
18th Jul 2026367 PMAQI
18th Jul 2026348 PMAQI
18th Jul 2026329 PMAQI
18th Jul 20263110 PMAQI
18th Jul 20262911 PMAQI
19th Jul 20262412 AMAQI
19th Jul 2026241 AMAQI
19th Jul 2026242 AMAQI
19th Jul 2026213 AMAQI

28°C26/30°C

19th Jul 2026204 AMAQI
19th Jul 2026205 AMAQI
19th Jul 2026216 AMAQI
19th Jul 2026217 AMAQI
19th Jul 2026168 AMAQI
19th Jul 2026189 AMAQI
19th Jul 20262010 AMAQI
19th Jul 20261611 AMAQI
19th Jul 20261912 PMAQI
19th Jul 2026241 PMAQI
19th Jul 2026232 PMAQI
19th Jul 2026303 PMAQI
19th Jul 2026264 PMAQI
19th Jul 2026265 PMAQI
19th Jul 2026286 PMAQI
19th Jul 2026267 PMAQI
19th Jul 2026248 PMAQI
19th Jul 2026239 PMAQI
19th Jul 20262510 PMAQI
19th Jul 20262511 PMAQI
20th Jul 20262512 AMAQI
20th Jul 2026231 AMAQI
20th Jul 2026232 AMAQI
20th Jul 2026213 AMAQI

29°C27/32°C

20th Jul 2026224 AMAQI
20th Jul 2026225 AMAQI
20th Jul 2026236 AMAQI
20th Jul 2026227 AMAQI
20th Jul 2026268 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262610 AMAQI
20th Jul 20262711 AMAQI
20th Jul 20263412 PMAQI
20th Jul 2026341 PMAQI
20th Jul 2026422 PMAQI
20th Jul 2026393 PMAQI
20th Jul 2026434 PMAQI
20th Jul 2026525 PMAQI
20th Jul 2026546 PMAQI
20th Jul 2026437 PMAQI
20th Jul 2026488 PMAQI
20th Jul 2026469 PMAQI
20th Jul 20263610 PMAQI
20th Jul 20263911 PMAQI
21st Jul 20264012 AMAQI
21st Jul 2026411 AMAQI
21st Jul 2026412 AMAQI
21st Jul 2026443 AMAQI

30°C27/33°C

21st Jul 2026444 AMAQI
21st Jul 2026445 AMAQI
21st Jul 2026466 AMAQI
21st Jul 2026467 AMAQI
21st Jul 2026488 AMAQI
21st Jul 2026529 AMAQI
21st Jul 20265610 AMAQI
21st Jul 20266011 AMAQI
21st Jul 2026741 PMAQI
21st Jul 2026802 PMAQI
21st Jul 2026763 PMAQI
21st Jul 2026744 PMAQI
21st Jul 2026745 PMAQI
21st Jul 2026786 PMAQI
21st Jul 20261017 PMAQI
21st Jul 2026788 PMAQI
21st Jul 2026689 PMAQI
21st Jul 20266410 PMAQI
21st Jul 20266211 PMAQI
22nd Jul 20266212 AMAQI
22nd Jul 2026581 AMAQI
22nd Jul 2026612 AMAQI
22nd Jul 2026583 AMAQI

31°C28/35°C

22nd Jul 2026604 AMAQI
22nd Jul 2026585 AMAQI
22nd Jul 2026566 AMAQI
22nd Jul 2026547 AMAQI
22nd Jul 2026588 AMAQI
22nd Jul 2026669 AMAQI
22nd Jul 20267510 AMAQI
22nd Jul 20268511 AMAQI
22nd Jul 20269512 PMAQI
22nd Jul 2026951 PMAQI
22nd Jul 2026962 PMAQI
22nd Jul 2026963 PMAQI
22nd Jul 2026874 PMAQI
22nd Jul 2026885 PMAQI
22nd Jul 2026766 PMAQI
22nd Jul 2026727 PMAQI
22nd Jul 2026758 PMAQI
22nd Jul 2026779 PMAQI
22nd Jul 20267210 PMAQI
22nd Jul 20265811 PMAQI
23rd Jul 20265212 AMAQI
23rd Jul 2026581 AMAQI
23rd Jul 2026542 AMAQI
23rd Jul 2026563 AMAQI

32°C28/37°C

23rd Jul 2026574 AMAQI
23rd Jul 2026595 AMAQI
23rd Jul 2026536 AMAQI
23rd Jul 2026507 AMAQI
23rd Jul 2026528 AMAQI
23rd Jul 2026589 AMAQI
23rd Jul 20265410 AMAQI
23rd Jul 20262611 AMAQI
23rd Jul 20265012 PMAQI
23rd Jul 2026411 PMAQI
23rd Jul 2026552 PMAQI
23rd Jul 2026563 PMAQI
23rd Jul 2026604 PMAQI
23rd Jul 2026625 PMAQI
23rd Jul 2026636 PMAQI
23rd Jul 2026427 PMAQI
23rd Jul 2026308 PMAQI
23rd Jul 2026169 PMAQI
23rd Jul 20261710 PMAQI
23rd Jul 20261911 PMAQI
24th Jul 20261612 AMAQI
24th Jul 2026241 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026123 AMAQI

33°C28/38°C

24th Jul 2026364 AMAQI
24th Jul 2026325 AMAQI
24th Jul 2026326 AMAQI
24th Jul 2026427 AMAQI
24th Jul 2026628 AMAQI
24th Jul 2026759 AMAQI
24th Jul 20267610 AMAQI
24th Jul 20267411 AMAQI
24th Jul 20266612 PMAQI
24th Jul 2026621 PMAQI
24th Jul 2026572 PMAQI
24th Jul 2026563 PMAQI
24th Jul 2026574 PMAQI
24th Jul 2026565 PMAQI
24th Jul 2026526 PMAQI
24th Jul 2026377 PMAQI
24th Jul 2026248 PMAQI
24th Jul 2026369 PMAQI
24th Jul 20263410 PMAQI
24th Jul 20264311 PMAQI
25th Jul 20264012 AMAQI
25th Jul 2026371 AMAQI
25th Jul 2026342 AMAQI
25th Jul 2026393 AMAQI

31°C28/35°C

25th Jul 2026394 AMAQI
25th Jul 2026365 AMAQI
25th Jul 2026386 AMAQI
25th Jul 2026417 AMAQI
25th Jul 2026448 AMAQI
25th Jul 2026459 AMAQI
25th Jul 20264210 AMAQI
25th Jul 20265011 AMAQI
25th Jul 20265012 PMAQI
25th Jul 2026481 PMAQI
25th Jul 2026492 PMAQI
25th Jul 2026443 PMAQI
25th Jul 2026474 PMAQI
25th Jul 2026475 PMAQI
25th Jul 2026506 PMAQI
25th Jul 2026507 PMAQI
25th Jul 2026428 PMAQI
25th Jul 2026389 PMAQI
25th Jul 20264110 PMAQI
25th Jul 20264011 PMAQI
26th Jul 20262612 AMAQI
26th Jul 2026381 AMAQI
26th Jul 2026382 AMAQI
26th Jul 2026363 AMAQI

32°C28/37°C

26th Jul 2026394 AMAQI
26th Jul 2026385 AMAQI
26th Jul 2026406 AMAQI
26th Jul 2026367 AMAQI
26th Jul 2026368 AMAQI
26th Jul 2026439 AMAQI
26th Jul 20264110 AMAQI
26th Jul 20264011 AMAQI
26th Jul 20264112 PMAQI
26th Jul 2026451 PMAQI
26th Jul 2026462 PMAQI
26th Jul 2026413 PMAQI
26th Jul 2026454 PMAQI
26th Jul 2026445 PMAQI
26th Jul 2026476 PMAQI
26th Jul 2026437 PMAQI
26th Jul 2026398 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20264010 PMAQI
26th Jul 20263611 PMAQI
27th Jul 20264612 AMAQI
27th Jul 2026301 AMAQI
27th Jul 2026282 AMAQI
27th Jul 2026263 AMAQI

30°C27/34°C

27th Jul 2026454 AMAQI
27th Jul 2026415 AMAQI
27th Jul 2026306 AMAQI
27th Jul 2026297 AMAQI
27th Jul 2026318 AMAQI
27th Jul 2026279 AMAQI
27th Jul 20262610 AMAQI
27th Jul 20262911 AMAQI
27th Jul 20263012 PMAQI
27th Jul 2026281 PMAQI
27th Jul 2026232 PMAQI
27th Jul 2026273 PMAQI
27th Jul 2026414 PMAQI
27th Jul 2026415 PMAQI
27th Jul 2026346 PMAQI
27th Jul 2026347 PMAQI
27th Jul 2026348 PMAQI
27th Jul 2026279 PMAQI
27th Jul 20262610 PMAQI
27th Jul 20263811 PMAQI
28th Jul 20262612 AMAQI
28th Jul 2026271 AMAQI
28th Jul 2026362 AMAQI
28th Jul 2026433 AMAQI

30°C27/35°C

28th Jul 2026344 AMAQI
28th Jul 2026345 AMAQI
28th Jul 2026306 AMAQI
28th Jul 2026267 AMAQI
28th Jul 2026308 AMAQI
28th Jul 2026299 AMAQI
28th Jul 20263810 AMAQI
28th Jul 20262911 AMAQI
28th Jul 20262912 PMAQI
28th Jul 2026311 PMAQI
28th Jul 2026432 PMAQI
28th Jul 2026503 PMAQI
28th Jul 2026514 PMAQI
28th Jul 2026545 PMAQI
28th Jul 2026236 PMAQI
28th Jul 2026247 PMAQI
28th Jul 2026268 PMAQI
28th Jul 2026279 PMAQI
28th Jul 20262110 PMAQI
28th Jul 20262311 PMAQI
29th Jul 20262212 AMAQI
29th Jul 2026211 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026253 AMAQI

28°C26/31°C

29th Jul 2026264 AMAQI
4 AM
29th Jul 2026215 AMAQI
29th Jul 2026256 AMAQI
29th Jul 2026337 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026319 AMAQI
29th Jul 20262110 AMAQI
29th Jul 20262311 AMAQI
11 AM
29th Jul 20262512 PMAQI
29th Jul 2026231 PMAQI
29th Jul 2026262 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026234 PMAQI
29th Jul 2026245 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026297 PMAQI
7 PM
29th Jul 2026328 PMAQI
29th Jul 2026419 PMAQI
29th Jul 20263610 PMAQI
29th Jul 20263711 PMAQI
11 PM
3 AM

29°C26/34°C

Day time
Avg. Highest Time
3 PM - 5 PM

43AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
6 AM

33AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 5 PM (Avg. 43), while the lowest AQI was between 6 AM to 6 AM (Avg. 33).
Night time
Avg. Highest Time
8 PM - 10 PM

36AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM

30AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 10 PM (Avg. 36), while the lowest AQI was between 3 AM to 3 AM (Avg. 30).

2026 Days Vs Air Quality

Obu, Aichi, Japan

2026

81%

170

19%

40

Total number of days with different AQI categories in last 210 days in 2026 (155 days remaining)

Good
170 Days
Moderate
40 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 81%

Health Risk Level:

Low

In 2026, 81% of 210 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

Obu, Aichi, 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
14AQI (US)
2nd January 2026
12AQI (US)
3rd January 2026
12AQI (US)
4th January 2026
22AQI (US)
5th January 2026
46AQI (US)
6th January 2026
16AQI (US)
7th January 2026
36AQI (US)
8th January 2026
34AQI (US)
9th January 2026
16AQI (US)
10th January 2026
38AQI (US)
11th January 2026
36AQI (US)
12th January 2026
17AQI (US)
13th January 2026
44AQI (US)
14th January 2026
24AQI (US)
15th January 2026
48AQI (US)
16th January 2026
60AQI (US)
17th January 2026
63AQI (US)
18th January 2026
60AQI (US)
19th January 2026
72AQI (US)
20th January 2026
28AQI (US)
21st January 2026
12AQI (US)
22nd January 2026
16AQI (US)
23rd January 2026
36AQI (US)
24th January 2026
46AQI (US)
25th January 2026
44AQI (US)
26th January 2026
18AQI (US)
27th January 2026
42AQI (US)
28th January 2026
34AQI (US)
29th January 2026
31AQI (US)
30th January 2026
32AQI (US)
31st January 2026
33AQI (US)
1st February 2026
34AQI (US)
2nd February 2026
44AQI (US)
3rd February 2026
29AQI (US)
4th February 2026
38AQI (US)
5th February 2026
60AQI (US)
6th February 2026
58AQI (US)
7th February 2026
16AQI (US)
8th February 2026
28AQI (US)
9th February 2026
40AQI (US)
10th February 2026
49AQI (US)
11th February 2026
40AQI (US)
12th February 2026
56AQI (US)
13th February 2026
62AQI (US)
14th February 2026
70AQI (US)
15th February 2026
68AQI (US)
16th February 2026
54AQI (US)
17th February 2026
22AQI (US)
18th February 2026
28AQI (US)
19th February 2026
31AQI (US)
20th February 2026
40AQI (US)
21st February 2026
58AQI (US)
22nd February 2026
46AQI (US)
23rd February 2026
49AQI (US)
24th February 2026
56AQI (US)
25th February 2026
35AQI (US)
26th February 2026
24AQI (US)
27th February 2026
46AQI (US)
28th February 2026
28AQI (US)
1st March 2026
24AQI (US)
2nd March 2026
58AQI (US)
3rd March 2026
37AQI (US)
4th March 2026
10AQI (US)
5th March 2026
46AQI (US)
6th March 2026
48AQI (US)
7th March 2026
34AQI (US)
8th March 2026
46AQI (US)
9th March 2026
30AQI (US)
10th March 2026
53AQI (US)
11th March 2026
35AQI (US)
12th March 2026
32AQI (US)
13th March 2026
38AQI (US)
14th March 2026
44AQI (US)
15th March 2026
58AQI (US)
16th March 2026
52AQI (US)
17th March 2026
50AQI (US)
18th March 2026
62AQI (US)
19th March 2026
34AQI (US)
20th March 2026
48AQI (US)
21st March 2026
58AQI (US)
22nd March 2026
61AQI (US)
23rd March 2026
55AQI (US)
24th March 2026
47AQI (US)
25th March 2026
52AQI (US)
26th March 2026
15AQI (US)
27th March 2026
30AQI (US)
28th March 2026
62AQI (US)
29th March 2026
56AQI (US)
30th March 2026
49AQI (US)
31st March 2026
20AQI (US)
1st April 2026
21AQI (US)
2nd April 2026
41AQI (US)
3rd April 2026
54AQI (US)
4th April 2026
34AQI (US)
5th April 2026
21AQI (US)
6th April 2026
40AQI (US)
7th April 2026
40AQI (US)
8th April 2026
30AQI (US)
9th April 2026
30AQI (US)
10th April 2026
46AQI (US)
11th April 2026
44AQI (US)
12th April 2026
39AQI (US)
13th April 2026
47AQI (US)
14th April 2026
54AQI (US)
15th April 2026
31AQI (US)
16th April 2026
27AQI (US)
17th April 2026
37AQI (US)
18th April 2026
30AQI (US)
19th April 2026
31AQI (US)
20th April 2026
35AQI (US)
21st April 2026
48AQI (US)
22nd April 2026
45AQI (US)
23rd April 2026
40AQI (US)
24th April 2026
22AQI (US)
25th April 2026
42AQI (US)
26th April 2026
49AQI (US)
27th April 2026
49AQI (US)
28th April 2026
47AQI (US)
29th April 2026
50AQI (US)
30th April 2026
28AQI (US)
1st May 2026
25AQI (US)
2nd May 2026
31AQI (US)
3rd May 2026
50AQI (US)
4th May 2026
27AQI (US)
5th May 2026
20AQI (US)
6th May 2026
25AQI (US)
7th May 2026
28AQI (US)
8th May 2026
27AQI (US)
9th May 2026
24AQI (US)
10th May 2026
29AQI (US)
11th May 2026
29AQI (US)
12th May 2026
32AQI (US)
13th May 2026
38AQI (US)
14th May 2026
33AQI (US)
15th May 2026
42AQI (US)
16th May 2026
84AQI (US)
17th May 2026
68AQI (US)
18th May 2026
53AQI (US)
19th May 2026
48AQI (US)
20th May 2026
62AQI (US)
21st May 2026
59AQI (US)
22nd May 2026
63AQI (US)
23rd May 2026
56AQI (US)
24th May 2026
60AQI (US)
25th May 2026
48AQI (US)
26th May 2026
40AQI (US)
27th May 2026
24AQI (US)
28th May 2026
24AQI (US)
29th May 2026
24AQI (US)
30th May 2026
24AQI (US)
31st May 2026
38AQI (US)
1st June 2026
32AQI (US)
2nd June 2026
22AQI (US)
3rd June 2026
25AQI (US)
4th June 2026
24AQI (US)
5th June 2026
22AQI (US)
6th June 2026
25AQI (US)
7th June 2026
21AQI (US)
8th June 2026
20AQI (US)
9th June 2026
22AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
26AQI (US)
13th June 2026
42AQI (US)
14th June 2026
32AQI (US)
15th June 2026
20AQI (US)
16th June 2026
25AQI (US)
17th June 2026
24AQI (US)
18th June 2026
25AQI (US)
19th June 2026
32AQI (US)
20th June 2026
16AQI (US)
21st June 2026
18AQI (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
32AQI (US)
29th June 2026
50AQI (US)
30th June 2026
62AQI (US)
1st July 2026
48AQI (US)
2nd July 2026
30AQI (US)
3rd July 2026
26AQI (US)
4th July 2026
22AQI (US)
5th July 2026
20AQI (US)
6th July 2026
20AQI (US)
7th July 2026
26AQI (US)
8th July 2026
24AQI (US)
9th July 2026
24AQI (US)
10th July 2026
24AQI (US)
11th July 2026
20AQI (US)
12th July 2026
28AQI (US)
13th July 2026
52AQI (US)
14th July 2026
31AQI (US)
15th July 2026
39AQI (US)
16th July 2026
53AQI (US)
17th July 2026
53AQI (US)
18th July 2026
45AQI (US)
19th July 2026
23AQI (US)
20th July 2026
33AQI (US)
21st July 2026
60AQI (US)
22nd July 2026
72AQI (US)
23rd July 2026
48AQI (US)
24th July 2026
45AQI (US)
25th July 2026
43AQI (US)
26th July 2026
40AQI (US)
27th July 2026
32AQI (US)
28th July 2026
32AQI (US)
29th July 2026
26AQI (US)
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
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

34AQI (US)

43AQI (US)

43AQI (US)

38AQI (US)

40AQI (US)

27AQI (US)

36AQI (US)

No. of days

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

202637AQI (US)

27
4
19
9
20
11
28
2
23
8
29
1
24
5
170
40

Highest AQI (US) recorded in

February

43AQI (US)

Lowest AQI (US) recorded in

June

27AQI (US)

202535AQI (US)

31
28
28
3
30
31
30
18
13
21
10
30
22
9
21
9
24
7
314
51

Highest AQI (US) recorded in

July

48AQI (US)

Lowest AQI (US) recorded in

June

22AQI (US)

202432AQI (US)

31
28
1
27
4
26
4
30
1
30
30
1
31
30
31
30
31
355
11

Highest AQI (US) recorded in

April

43AQI (US)

Lowest AQI (US) recorded in

December

25AQI (US)

202333AQI (US)

30
1
28
30
1
28
2
29
2
28
2
29
2
31
30
31
25
4
30
1
349
15

Highest AQI (US) recorded in

April

42AQI (US)

Lowest AQI (US) recorded in

August

22AQI (US)

202231AQI (US)

31
21
28
3
15
3
31
30
21
2
29
31
29
1
31
299
7

Highest AQI (US) recorded in

March

40AQI (US)

Lowest AQI (US) recorded in

August

17AQI (US)

202125AQI (US)

31
28
30
1
30
31
25
5
31
31
30
31
29
1
31
358
7

Highest AQI (US) recorded in

June

39AQI (US)

Lowest AQI (US) recorded in

January

16AQI (US)

202016AQI (US)

13
21
18
30
31
31
19
31
30
31
255

Highest AQI (US) recorded in

August

22AQI (US)

Lowest AQI (US) recorded in

December

14AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
37AQI (US)
Least Polluted Year Recorded
2020(Avg.)
16AQI (US)

Obu's annual 2026 AQI (US) (37) shows an average percentage change of 38.6% (worsened AQI (US)) compared to previous years: 2020 (16), 2021 (25), 2022 (31), 2023 (33), 2024 (32), 2025 (35).