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+

June Air Quality Analysis

Obu, Aichi, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
19th Jun 2023
57AQI
Lowest AQI recorded on
30th Jun 2024
15AQI

Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 22 of Good air quality, showing improvement over 2025, 2024 and 2022 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026

Obu, Aichi, Japan

AQI
Day
Night
.

4 AM1st Jun 2026

6 PM

3 AM2nd Jun 2026

Day time
Avg. Highest Time
7AM1st Jun

42AQI

Avg. Lowest Time
7PM1st Jun

26AQI

Night time
Avg. Highest Time
2AM2nd Jun

34AQI

Avg. Lowest Time
8PM1st Jun

24AQI

In the last 24 hours,

Obu's AQI reached its highest point of 42 at 7 AM during the Day, while the lowest point, 24, was recorded at 8 PM during the Night between 1st Jun and 2nd Jun 2026.

Day & Night AQI Trend : May - Jun 2026

Obu, Aichi, Japan

MayJun
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
4th May 2026344 AMAQI
4th May 2026225 AMAQI
4th May 2026136 AMAQI
4th May 2026187 AMAQI
4th May 2026228 AMAQI
4th May 2026149 AMAQI
4th May 20261010 AMAQI
4th May 20261411 AMAQI
4th May 20262012 PMAQI
4th May 2026291 PMAQI
4th May 2026322 PMAQI
4th May 2026273 PMAQI
4th May 2026304 PMAQI
4th May 2026425 PMAQI
4th May 2026446 PMAQI
4th May 2026277 PMAQI
4th May 2026198 PMAQI
4th May 2026209 PMAQI
4th May 20261910 PMAQI
4th May 20261811 PMAQI
5th May 20261812 AMAQI
5th May 2026161 AMAQI
5th May 2026142 AMAQI
5th May 2026163 AMAQI

18°C13/21°C

5th May 2026134 AMAQI
5th May 2026145 AMAQI
5th May 2026166 AMAQI
5th May 2026207 AMAQI
5th May 2026228 AMAQI
5th May 2026269 AMAQI
5th May 20262510 AMAQI
5th May 20262511 AMAQI
5th May 20262212 PMAQI
5th May 2026221 PMAQI
5th May 2026182 PMAQI
5th May 2026203 PMAQI
5th May 2026194 PMAQI
5th May 2026245 PMAQI
5th May 2026286 PMAQI
5th May 2026257 PMAQI
5th May 2026208 PMAQI
5th May 2026209 PMAQI
5th May 20262710 PMAQI
5th May 20262011 PMAQI
6th May 20263212 AMAQI
6th May 2026301 AMAQI
6th May 2026212 AMAQI
6th May 2026183 AMAQI

16°C11/20°C

6th May 2026244 AMAQI
6th May 2026245 AMAQI
6th May 2026246 AMAQI
6th May 2026307 AMAQI
6th May 2026218 AMAQI
6th May 2026309 AMAQI
6th May 20262810 AMAQI
6th May 20263211 AMAQI
6th May 20263012 PMAQI
6th May 2026191 PMAQI
6th May 2026212 PMAQI
6th May 2026223 PMAQI
6th May 2026204 PMAQI
6th May 2026225 PMAQI
6th May 2026266 PMAQI
6th May 2026247 PMAQI
6th May 2026268 PMAQI
6th May 2026309 PMAQI
6th May 20262610 PMAQI
6th May 20262611 PMAQI
7th May 20263012 AMAQI
7th May 2026321 AMAQI
7th May 2026342 AMAQI
7th May 2026323 AMAQI

18°C15/21°C

7th May 2026344 AMAQI
7th May 2026345 AMAQI
7th May 2026286 AMAQI
7th May 2026347 AMAQI
7th May 2026348 AMAQI
7th May 2026349 AMAQI
7th May 20263410 AMAQI
7th May 20263111 AMAQI
7th May 20262412 PMAQI
7th May 2026241 PMAQI
7th May 2026262 PMAQI
7th May 2026263 PMAQI
7th May 2026284 PMAQI
7th May 2026245 PMAQI
7th May 2026236 PMAQI
7th May 2026227 PMAQI
7th May 2026188 PMAQI
7th May 2026209 PMAQI
7th May 20262810 PMAQI
7th May 20263111 PMAQI
8th May 20262612 AMAQI
8th May 2026201 AMAQI
8th May 2026232 AMAQI
8th May 2026203 AMAQI

20°C16/24°C

8th May 2026244 AMAQI
8th May 2026355 AMAQI
8th May 2026246 AMAQI
8th May 2026217 AMAQI
8th May 2026228 AMAQI
8th May 2026339 AMAQI
8th May 20264010 AMAQI
8th May 20263811 AMAQI
8th May 20262612 PMAQI
8th May 2026221 PMAQI
8th May 2026272 PMAQI
8th May 2026283 PMAQI
8th May 2026224 PMAQI
8th May 2026365 PMAQI
8th May 2026386 PMAQI
8th May 2026327 PMAQI
8th May 2026258 PMAQI
8th May 2026159 PMAQI
8th May 20262210 PMAQI
8th May 20262411 PMAQI
9th May 20262212 AMAQI
9th May 2026201 AMAQI
9th May 2026212 AMAQI
9th May 2026263 AMAQI

20°C16/24°C

9th May 2026434 AMAQI
9th May 2026325 AMAQI
9th May 2026226 AMAQI
9th May 2026187 AMAQI
9th May 2026188 AMAQI
9th May 2026259 AMAQI
9th May 20263410 AMAQI
9th May 20263011 AMAQI
9th May 20262412 PMAQI
9th May 2026241 PMAQI
9th May 2026222 PMAQI
9th May 2026243 PMAQI
9th May 2026234 PMAQI
9th May 2026265 PMAQI
9th May 2026226 PMAQI
9th May 2026207 PMAQI
9th May 2026168 PMAQI
9th May 2026169 PMAQI
9th May 20261610 PMAQI
9th May 20262211 PMAQI
10th May 20262612 AMAQI
10th May 2026261 AMAQI
10th May 2026312 AMAQI
10th May 2026243 AMAQI

17°C13/21°C

10th May 2026334 AMAQI
10th May 2026395 AMAQI
10th May 2026266 AMAQI
10th May 2026287 AMAQI
10th May 2026238 AMAQI
10th May 2026439 AMAQI
10th May 20264210 AMAQI
10th May 20263611 AMAQI
10th May 20262712 PMAQI
10th May 2026251 PMAQI
10th May 2026392 PMAQI
10th May 2026383 PMAQI
10th May 2026294 PMAQI
10th May 2026285 PMAQI
10th May 2026266 PMAQI
10th May 2026257 PMAQI
10th May 2026218 PMAQI
10th May 2026229 PMAQI
10th May 20262210 PMAQI
10th May 20262211 PMAQI
11th May 20262412 AMAQI
11th May 2026281 AMAQI
11th May 2026282 AMAQI
11th May 2026223 AMAQI

17°C12/21°C

11th May 2026444 AMAQI
11th May 2026185 AMAQI
11th May 2026336 AMAQI
11th May 2026307 AMAQI
11th May 2026358 AMAQI
11th May 2026419 AMAQI
11th May 20265410 AMAQI
11th May 20265011 AMAQI
11th May 20262912 PMAQI
11th May 2026331 PMAQI
11th May 2026342 PMAQI
11th May 2026303 PMAQI
11th May 2026284 PMAQI
11th May 2026245 PMAQI
11th May 2026176 PMAQI
11th May 2026197 PMAQI
11th May 2026168 PMAQI
11th May 2026149 PMAQI
11th May 20261810 PMAQI
11th May 20261911 PMAQI
12th May 20262612 AMAQI
12th May 2026251 AMAQI
12th May 2026382 AMAQI
12th May 2026323 AMAQI

19°C16/22°C

12th May 2026334 AMAQI
12th May 2026345 AMAQI
12th May 2026376 AMAQI
12th May 2026337 AMAQI
12th May 2026328 AMAQI
12th May 2026379 AMAQI
12th May 20265410 AMAQI
12th May 20262811 AMAQI
12th May 20262612 PMAQI
12th May 2026461 PMAQI
12th May 2026362 PMAQI
12th May 2026363 PMAQI
12th May 2026224 PMAQI
12th May 2026265 PMAQI
12th May 2026366 PMAQI
12th May 2026407 PMAQI
12th May 2026188 PMAQI
12th May 2026189 PMAQI
12th May 20261910 PMAQI
12th May 20262811 PMAQI
13th May 20263612 AMAQI
13th May 2026411 AMAQI
13th May 2026522 AMAQI
13th May 2026583 AMAQI

19°C16/22°C

13th May 2026594 AMAQI
13th May 2026635 AMAQI
13th May 2026596 AMAQI
13th May 2026477 AMAQI
13th May 2026448 AMAQI
13th May 2026489 AMAQI
13th May 20265410 AMAQI
13th May 20265011 AMAQI
13th May 20264112 PMAQI
13th May 2026231 PMAQI
13th May 2026302 PMAQI
13th May 2026293 PMAQI
13th May 2026224 PMAQI
13th May 2026285 PMAQI
13th May 2026236 PMAQI
13th May 2026207 PMAQI
13th May 2026158 PMAQI
13th May 2026189 PMAQI
13th May 20262010 PMAQI
13th May 20263011 PMAQI
14th May 20263212 AMAQI
14th May 2026321 AMAQI
14th May 2026452 AMAQI
14th May 2026443 AMAQI

20°C18/24°C

14th May 2026474 AMAQI
14th May 2026545 AMAQI
14th May 2026266 AMAQI
14th May 2026217 AMAQI
14th May 2026258 AMAQI
14th May 2026369 AMAQI
14th May 20264810 AMAQI
14th May 20263811 AMAQI
14th May 20262412 PMAQI
14th May 2026311 PMAQI
14th May 2026322 PMAQI
14th May 2026323 PMAQI
14th May 2026274 PMAQI
14th May 2026365 PMAQI
14th May 2026336 PMAQI
14th May 2026267 PMAQI
14th May 2026288 PMAQI
14th May 2026239 PMAQI
14th May 20262310 PMAQI
14th May 20262611 PMAQI
15th May 20263212 AMAQI
15th May 2026371 AMAQI
15th May 2026302 AMAQI
15th May 2026303 AMAQI

20°C16/25°C

15th May 2026444 AMAQI
15th May 2026335 AMAQI
15th May 2026286 AMAQI
15th May 2026267 AMAQI
15th May 2026418 AMAQI
15th May 2026469 AMAQI
15th May 20265410 AMAQI
15th May 20264211 AMAQI
15th May 20263012 PMAQI
15th May 2026481 PMAQI
15th May 2026652 PMAQI
15th May 2026603 PMAQI
15th May 2026524 PMAQI
15th May 2026525 PMAQI
15th May 2026486 PMAQI
15th May 2026417 PMAQI
15th May 2026408 PMAQI
15th May 2026389 PMAQI
15th May 20264010 PMAQI
15th May 20264411 PMAQI
16th May 20266212 AMAQI
16th May 2026711 AMAQI
16th May 2026802 AMAQI
16th May 2026893 AMAQI

20°C17/23°C

16th May 2026914 AMAQI
16th May 2026805 AMAQI
16th May 2026786 AMAQI
16th May 2026747 AMAQI
16th May 2026938 AMAQI
16th May 2026929 AMAQI
16th May 20267810 AMAQI
16th May 20268211 AMAQI
16th May 20268912 PMAQI
16th May 2026961 PMAQI
16th May 2026952 PMAQI
16th May 2026953 PMAQI
16th May 2026994 PMAQI
16th May 2026855 PMAQI
16th May 2026766 PMAQI
16th May 2026757 PMAQI
16th May 2026768 PMAQI
16th May 2026829 PMAQI
16th May 20268810 PMAQI
16th May 20269511 PMAQI
17th May 20268412 AMAQI
17th May 2026721 AMAQI
17th May 2026862 AMAQI
17th May 2026923 AMAQI

21°C18/24°C

17th May 2026854 AMAQI
17th May 2026805 AMAQI
17th May 2026786 AMAQI
17th May 2026767 AMAQI
17th May 2026738 AMAQI
17th May 2026649 AMAQI
17th May 20265810 AMAQI
17th May 20266211 AMAQI
17th May 20266412 PMAQI
17th May 2026861 PMAQI
17th May 2026752 PMAQI
17th May 2026623 PMAQI
17th May 2026614 PMAQI
17th May 2026635 PMAQI
17th May 2026586 PMAQI
17th May 2026597 PMAQI
17th May 2026508 PMAQI
17th May 2026479 PMAQI
17th May 20264610 PMAQI
17th May 20264511 PMAQI
18th May 20265612 AMAQI
18th May 2026561 AMAQI
18th May 2026612 AMAQI
18th May 2026513 AMAQI

23°C18/28°C

18th May 2026574 AMAQI
18th May 2026685 AMAQI
18th May 2026626 AMAQI
18th May 2026687 AMAQI
18th May 2026708 AMAQI
18th May 2026669 AMAQI
18th May 20266610 AMAQI
18th May 20265611 AMAQI
18th May 20268612 PMAQI
18th May 2026441 PMAQI
18th May 2026352 PMAQI
18th May 2026323 PMAQI
18th May 2026304 PMAQI
18th May 2026435 PMAQI
18th May 2026426 PMAQI
18th May 2026427 PMAQI
18th May 2026448 PMAQI
18th May 2026479 PMAQI
18th May 20264810 PMAQI
18th May 20264311 PMAQI
19th May 20265012 AMAQI
19th May 2026541 AMAQI
19th May 2026482 AMAQI
19th May 2026503 AMAQI

23°C19/26°C

19th May 2026484 AMAQI
19th May 2026505 AMAQI
19th May 2026506 AMAQI
19th May 2026437 AMAQI
19th May 2026518 AMAQI
19th May 2026589 AMAQI
19th May 20265410 AMAQI
19th May 20265411 AMAQI
19th May 20263712 PMAQI
19th May 2026321 PMAQI
19th May 2026402 PMAQI
19th May 2026353 PMAQI
19th May 2026374 PMAQI
19th May 2026335 PMAQI
19th May 2026406 PMAQI
19th May 2026487 PMAQI
19th May 2026568 PMAQI
19th May 2026639 PMAQI
19th May 20266610 PMAQI
19th May 20266611 PMAQI
20th May 20266612 AMAQI
20th May 2026661 AMAQI
20th May 2026672 AMAQI
20th May 2026693 AMAQI

22°C19/26°C

20th May 2026684 AMAQI
20th May 2026705 AMAQI
20th May 2026726 AMAQI
20th May 2026687 AMAQI
20th May 2026688 AMAQI
20th May 2026569 AMAQI
20th May 20265310 AMAQI
20th May 20265011 AMAQI
20th May 20265012 PMAQI
20th May 2026501 PMAQI
20th May 2026492 PMAQI
20th May 2026483 PMAQI
20th May 2026594 PMAQI
20th May 2026645 PMAQI
20th May 2026636 PMAQI
20th May 2026667 PMAQI
20th May 2026688 PMAQI
20th May 2026609 PMAQI
20th May 20265810 PMAQI
20th May 20266611 PMAQI
21st May 20266012 AMAQI
21st May 2026601 AMAQI
21st May 2026602 AMAQI
21st May 2026533 AMAQI

22°C20/25°C

21st May 2026394 AMAQI
21st May 2026505 AMAQI
21st May 2026466 AMAQI
21st May 2026627 AMAQI
21st May 2026618 AMAQI
21st May 2026739 AMAQI
21st May 20266210 AMAQI
21st May 20265811 AMAQI
21st May 20265812 PMAQI
21st May 2026581 PMAQI
21st May 2026582 PMAQI
21st May 2026623 PMAQI
21st May 2026664 PMAQI
21st May 2026595 PMAQI
21st May 2026666 PMAQI
21st May 2026647 PMAQI
21st May 2026628 PMAQI
21st May 2026619 PMAQI
21st May 20266410 PMAQI
21st May 20266311 PMAQI
22nd May 20265612 AMAQI
22nd May 2026621 AMAQI
22nd May 2026622 AMAQI
22nd May 2026593 AMAQI

22°C21/22°C

22nd May 2026624 AMAQI
22nd May 2026625 AMAQI
22nd May 2026686 AMAQI
22nd May 2026687 AMAQI
22nd May 2026708 AMAQI
22nd May 2026609 AMAQI
22nd May 20266010 AMAQI
22nd May 20266211 AMAQI
22nd May 20266212 PMAQI
22nd May 2026621 PMAQI
22nd May 2026622 PMAQI
22nd May 2026623 PMAQI
22nd May 2026624 PMAQI
22nd May 2026625 PMAQI
22nd May 2026626 PMAQI
22nd May 2026627 PMAQI
22nd May 2026598 PMAQI
22nd May 2026619 PMAQI
22nd May 20266410 PMAQI
22nd May 20266611 PMAQI
23rd May 20266312 AMAQI
23rd May 2026621 AMAQI
23rd May 2026652 AMAQI
23rd May 2026653 AMAQI

21°C19/23°C

23rd May 2026664 AMAQI
23rd May 2026555 AMAQI
23rd May 2026506 AMAQI
23rd May 2026507 AMAQI
23rd May 2026548 AMAQI
23rd May 2026569 AMAQI
23rd May 20265410 AMAQI
23rd May 20265311 AMAQI
23rd May 20265312 PMAQI
23rd May 2026531 PMAQI
23rd May 2026532 PMAQI
23rd May 2026533 PMAQI
23rd May 2026524 PMAQI
23rd May 2026525 PMAQI
23rd May 2026516 PMAQI
23rd May 2026527 PMAQI
23rd May 2026528 PMAQI
23rd May 2026509 PMAQI
23rd May 20265210 PMAQI
23rd May 20265911 PMAQI
24th May 20266812 AMAQI
24th May 2026641 AMAQI
24th May 2026742 AMAQI
24th May 2026783 AMAQI

18°C18/20°C

24th May 2026824 AMAQI
24th May 2026785 AMAQI
24th May 2026766 AMAQI
24th May 2026707 AMAQI
24th May 2026708 AMAQI
24th May 2026689 AMAQI
24th May 20265910 AMAQI
24th May 20265611 AMAQI
24th May 20265612 PMAQI
24th May 2026561 PMAQI
24th May 2026562 PMAQI
24th May 2026523 PMAQI
24th May 2026474 PMAQI
24th May 2026505 PMAQI
24th May 2026476 PMAQI
24th May 2026437 PMAQI
24th May 2026408 PMAQI
24th May 2026469 PMAQI
24th May 20265410 PMAQI
24th May 20264411 PMAQI
25th May 20264212 AMAQI
25th May 2026471 AMAQI
25th May 2026452 AMAQI
25th May 2026483 AMAQI

21°C18/24°C

25th May 2026444 AMAQI
25th May 2026495 AMAQI
25th May 2026486 AMAQI
25th May 2026527 AMAQI
25th May 2026588 AMAQI
25th May 2026619 AMAQI
25th May 20264810 AMAQI
25th May 20264611 AMAQI
25th May 20264612 PMAQI
25th May 2026461 PMAQI
25th May 2026462 PMAQI
25th May 2026403 PMAQI
25th May 2026374 PMAQI
25th May 2026335 PMAQI
25th May 2026396 PMAQI
25th May 2026467 PMAQI
25th May 2026548 PMAQI
25th May 2026769 PMAQI
25th May 20266610 PMAQI
25th May 20264711 PMAQI
26th May 20264812 AMAQI
26th May 2026341 AMAQI
26th May 2026372 AMAQI
26th May 2026393 AMAQI

22°C18/25°C

26th May 2026314 AMAQI
26th May 2026265 AMAQI
26th May 2026266 AMAQI
26th May 2026347 AMAQI
26th May 2026368 AMAQI
26th May 2026439 AMAQI
26th May 20265010 AMAQI
26th May 20265211 AMAQI
26th May 20265212 PMAQI
26th May 2026601 PMAQI
26th May 2026682 PMAQI
26th May 2026703 PMAQI
26th May 2026694 PMAQI
26th May 2026225 PMAQI
26th May 2026226 PMAQI
26th May 2026227 PMAQI
26th May 2026218 PMAQI
26th May 2026309 PMAQI
26th May 20262710 PMAQI
26th May 20263111 PMAQI
27th May 20262512 AMAQI
27th May 2026261 AMAQI
27th May 2026242 AMAQI
27th May 2026253 AMAQI

22°C20/25°C

27th May 2026264 AMAQI
27th May 2026245 AMAQI
27th May 2026256 AMAQI
27th May 2026257 AMAQI
27th May 2026258 AMAQI
27th May 2026319 AMAQI
27th May 20262610 AMAQI
27th May 20262511 AMAQI
27th May 20262512 PMAQI
27th May 2026231 PMAQI
27th May 2026242 PMAQI
27th May 2026223 PMAQI
27th May 2026204 PMAQI
27th May 2026205 PMAQI
27th May 2026196 PMAQI
27th May 2026187 PMAQI
27th May 2026208 PMAQI
27th May 2026219 PMAQI
27th May 20262210 PMAQI
27th May 20262511 PMAQI
28th May 20262612 AMAQI
28th May 2026281 AMAQI
28th May 2026262 AMAQI
28th May 2026273 AMAQI

21°C19/23°C

28th May 2026254 AMAQI
28th May 2026245 AMAQI
28th May 2026256 AMAQI
28th May 2026257 AMAQI
28th May 2026268 AMAQI
28th May 2026249 AMAQI
28th May 20262810 AMAQI
28th May 20262311 AMAQI
28th May 20262412 PMAQI
28th May 2026261 PMAQI
28th May 2026242 PMAQI
28th May 2026233 PMAQI
28th May 2026244 PMAQI
28th May 2026255 PMAQI
28th May 2026246 PMAQI
28th May 2026237 PMAQI
28th May 2026238 PMAQI
28th May 2026249 PMAQI
28th May 20262210 PMAQI
28th May 20262511 PMAQI
29th May 20262212 AMAQI
29th May 2026221 AMAQI
29th May 2026212 AMAQI
29th May 2026203 AMAQI

23°C21/26°C

29th May 2026204 AMAQI
29th May 2026195 AMAQI
29th May 2026206 AMAQI
29th May 2026227 AMAQI
29th May 2026248 AMAQI
29th May 2026249 AMAQI
29th May 20262810 AMAQI
29th May 20264111 AMAQI
29th May 20263412 PMAQI
29th May 2026241 PMAQI
29th May 2026282 PMAQI
29th May 2026233 PMAQI
29th May 2026234 PMAQI
29th May 2026225 PMAQI
29th May 2026226 PMAQI
29th May 2026227 PMAQI
29th May 2026228 PMAQI
29th May 2026219 PMAQI
29th May 20262210 PMAQI
29th May 20262411 PMAQI
30th May 20262412 AMAQI
30th May 2026241 AMAQI
30th May 2026232 AMAQI
30th May 2026183 AMAQI

23°C19/27°C

30th May 2026214 AMAQI
30th May 2026215 AMAQI
30th May 2026216 AMAQI
30th May 2026207 AMAQI
30th May 2026228 AMAQI
30th May 2026269 AMAQI
30th May 20262810 AMAQI
30th May 20263311 AMAQI
30th May 20262712 PMAQI
30th May 2026261 PMAQI
30th May 2026342 PMAQI
30th May 2026233 PMAQI
30th May 2026204 PMAQI
30th May 2026205 PMAQI
30th May 2026246 PMAQI
30th May 2026207 PMAQI
30th May 2026228 PMAQI
30th May 2026229 PMAQI
30th May 20263010 PMAQI
30th May 20263011 PMAQI
31st May 20262612 AMAQI
31st May 2026261 AMAQI
31st May 2026272 AMAQI
31st May 2026243 AMAQI

23°C16/29°C

31st May 2026284 AMAQI
31st May 2026245 AMAQI
31st May 2026246 AMAQI
31st May 2026257 AMAQI
31st May 2026268 AMAQI
31st May 2026269 AMAQI
31st May 20262810 AMAQI
31st May 20263311 AMAQI
31st May 20263612 PMAQI
31st May 2026341 PMAQI
31st May 2026272 PMAQI
31st May 2026703 PMAQI
31st May 2026684 PMAQI
31st May 2026575 PMAQI
31st May 2026526 PMAQI
31st May 2026527 PMAQI
31st May 2026558 PMAQI
31st May 2026579 PMAQI
31st May 20264810 PMAQI
31st May 20264311 PMAQI
1st Jun 20264512 AMAQI
1st Jun 2026461 AMAQI
1st Jun 2026422 AMAQI
1st Jun 2026383 AMAQI

24°C21/27°C

1st Jun 2026404 AMAQI
1st Jun 2026375 AMAQI
1st Jun 2026336 AMAQI
1st Jun 2026427 AMAQI
1st Jun 2026268 AMAQI
1st Jun 2026299 AMAQI
1st Jun 20263010 AMAQI
1st Jun 20263011 AMAQI
1st Jun 20262812 PMAQI
1st Jun 2026291 PMAQI
1st Jun 2026372 PMAQI
1st Jun 2026283 PMAQI
1st Jun 2026324 PMAQI
1st Jun 2026265 PMAQI
1st Jun 2026296 PMAQI
1st Jun 2026267 PMAQI
1st Jun 2026248 PMAQI
1st Jun 2026259 PMAQI
1st Jun 20262510 PMAQI
1st Jun 20262711 PMAQI
2nd Jun 20263012 AMAQI
2nd Jun 2026301 AMAQI
2nd Jun 2026342 AMAQI
2nd Jun 2026273 AMAQI

23°C20/26°C

2nd Jun 2026284 AMAQI
4 AM
2nd Jun 2026265 AMAQI
2nd Jun 2026276 AMAQI
2nd Jun 2026267 AMAQI
2nd Jun 2026248 AMAQI
2nd Jun 2026219 AMAQI
2nd Jun 20261610 AMAQI
2nd Jun 20261411 AMAQI
11 AM
2nd Jun 20261612 PMAQI
2nd Jun 2026131 PMAQI
2nd Jun 2026182 PMAQI
2nd Jun 2026243 PMAQI
2nd Jun 2026264 PMAQI
2nd Jun 2026265 PMAQI
2nd Jun 2026246 PMAQI
6 PM
2nd Jun 2026177 PMAQI
2nd Jun 2026248 PMAQI
2nd Jun 2026169 PMAQI
2nd Jun 20261610 PMAQI
2nd Jun 20261411 PMAQI
11 PM
3 AM

19°C17/20°C

Day time
Avg. Highest Time
4 AM - 5 AM

43AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
4 PM - 6 PM

38AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 5 AM (Avg. 43), while the lowest AQI was between 4 PM to 6 PM (Avg. 38).
Night time
Avg. Highest Time
2 AM - 3 AM

42AQI

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

35AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 3 AM (Avg. 42), while the lowest AQI was between 8 PM to 9 PM (Avg. 35).

2026 Days Vs Air Quality

Obu, Aichi, Japan

2026

78%

119

22%

34

Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)

Good
119 Days
Moderate
34 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 78%

Health Risk Level:

Low

In 2026, 78% of 153 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
4th June 2026
5th June 2026
6th June 2026
7th June 2026
8th June 2026
9th June 2026
10th June 2026
11th June 2026
12th June 2026
13th June 2026
14th June 2026
15th June 2026
16th June 2026
17th June 2026
18th June 2026
19th June 2026
20th June 2026
21st June 2026
22nd June 2026
23rd June 2026
24th June 2026
25th June 2026
26th June 2026
27th June 2026
28th June 2026
29th June 2026
30th June 2026
1st July 2026
2nd July 2026
3rd July 2026
4th July 2026
5th July 2026
6th July 2026
7th July 2026
8th July 2026
9th July 2026
10th July 2026
11th July 2026
12th July 2026
13th July 2026
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
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)

No. of days

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

202639AQI (US)

27
4
19
9
20
11
28
2
23
8
2
119
34

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.)
39AQI (US)
Least Polluted Year Recorded
2020(Avg.)
16AQI (US)

Obu's annual 2026 AQI (US) (39) shows an average percentage change of 46.1% (worsened AQI (US)) compared to previous years: 2020 (16), 2021 (25), 2022 (31), 2023 (33), 2024 (32), 2025 (35).