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+
August Air Quality Analysis
Obu, Aichi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
64AQILowest AQI recorded on
19th Aug 2021
10AQISame Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Obu, Aichi, Japan
AQI
Day
Night
.
4 AM5th Aug 2025
7 PM
3 AM6th Aug 2025
Day time
Avg. Highest Time
10AM5th Aug
61AQI
Avg. Lowest Time
6PM5th Aug
46AQI
Night time
Avg. Highest Time
4AM5th Aug
52AQI
Avg. Lowest Time
11PM5th Aug
48AQI
In the last 24 hours,
Obu's AQI reached its highest point of 61 at 10 AM during the Day, while the lowest point, 46, was recorded at 6 PM during the Day between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Obu, Aichi, Japan
JulAug
07th - 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 - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
7th Jul 2025664 AMAQI
7th Jul 2025665 AMAQI
7th Jul 2025666 AMAQI
7th Jul 2025667 AMAQI
7th Jul 2025668 AMAQI
7th Jul 2025599 AMAQI
7th Jul 20255710 AMAQI
7th Jul 20255611 AMAQI
7th Jul 20255812 PMAQI
7th Jul 2025621 PMAQI
7th Jul 2025662 PMAQI
7th Jul 2025703 PMAQI
7th Jul 2025744 PMAQI
7th Jul 2025785 PMAQI
7th Jul 2025836 PMAQI
7th Jul 2025857 PMAQI
7th Jul 2025868 PMAQI
7th Jul 2025749 PMAQI
7th Jul 20257510 PMAQI
7th Jul 20257511 PMAQI
8th Jul 20257312 AMAQI
8th Jul 2025691 AMAQI
8th Jul 2025642 AMAQI
8th Jul 2025653 AMAQI
31°C27/36°C
8th Jul 2025644 AMAQI
8th Jul 2025645 AMAQI
8th Jul 2025646 AMAQI
8th Jul 2025647 AMAQI
8th Jul 2025648 AMAQI
8th Jul 2025629 AMAQI
8th Jul 20256310 AMAQI
8th Jul 20256611 AMAQI
8th Jul 20257212 PMAQI
8th Jul 2025781 PMAQI
8th Jul 2025862 PMAQI
8th Jul 2025913 PMAQI
8th Jul 2025984 PMAQI
8th Jul 2025975 PMAQI
8th Jul 20251046 PMAQI
8th Jul 20251027 PMAQI
8th Jul 2025918 PMAQI
8th Jul 2025799 PMAQI
8th Jul 20257810 PMAQI
8th Jul 20257811 PMAQI
9th Jul 20257712 AMAQI
9th Jul 2025731 AMAQI
9th Jul 2025662 AMAQI
9th Jul 2025663 AMAQI
29°C26/33°C
9th Jul 2025674 AMAQI
9th Jul 2025685 AMAQI
9th Jul 2025686 AMAQI
9th Jul 2025687 AMAQI
9th Jul 2025688 AMAQI
9th Jul 2025899 AMAQI
9th Jul 202510810 AMAQI
9th Jul 202512511 AMAQI
9th Jul 202513012 PMAQI
9th Jul 20251151 PMAQI
9th Jul 20251092 PMAQI
9th Jul 2025963 PMAQI
9th Jul 2025954 PMAQI
9th Jul 2025975 PMAQI
9th Jul 2025946 PMAQI
9th Jul 2025967 PMAQI
9th Jul 2025888 PMAQI
9th Jul 2025779 PMAQI
9th Jul 20257210 PMAQI
9th Jul 20256611 PMAQI
10th Jul 20256612 AMAQI
10th Jul 2025681 AMAQI
10th Jul 2025712 AMAQI
10th Jul 2025703 AMAQI
29°C26/33°C
10th Jul 2025734 AMAQI
10th Jul 2025775 AMAQI
10th Jul 2025776 AMAQI
10th Jul 2025777 AMAQI
10th Jul 2025778 AMAQI
10th Jul 2025759 AMAQI
10th Jul 20257410 AMAQI
10th Jul 20257211 AMAQI
10th Jul 20256912 PMAQI
10th Jul 2025701 PMAQI
10th Jul 2025652 PMAQI
10th Jul 2025583 PMAQI
10th Jul 2025554 PMAQI
10th Jul 2025505 PMAQI
10th Jul 2025446 PMAQI
10th Jul 2025417 PMAQI
10th Jul 2025468 PMAQI
10th Jul 2025609 PMAQI
10th Jul 20256010 PMAQI
10th Jul 20256011 PMAQI
11th Jul 20256112 AMAQI
11th Jul 2025661 AMAQI
11th Jul 2025702 AMAQI
11th Jul 2025713 AMAQI
30°C26/34°C
11th Jul 2025714 AMAQI
11th Jul 2025725 AMAQI
11th Jul 2025716 AMAQI
11th Jul 2025717 AMAQI
11th Jul 2025728 AMAQI
11th Jul 2025369 AMAQI
11th Jul 20252510 AMAQI
11th Jul 20252511 AMAQI
11th Jul 20252812 PMAQI
11th Jul 2025451 PMAQI
11th Jul 2025492 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025414 PMAQI
11th Jul 2025405 PMAQI
11th Jul 2025466 PMAQI
11th Jul 2025447 PMAQI
11th Jul 2025518 PMAQI
11th Jul 2025609 PMAQI
11th Jul 20256010 PMAQI
11th Jul 20256011 PMAQI
12th Jul 20256012 AMAQI
12th Jul 2025631 AMAQI
12th Jul 2025672 AMAQI
12th Jul 2025673 AMAQI
28°C26/31°C
12th Jul 2025664 AMAQI
12th Jul 2025635 AMAQI
12th Jul 2025636 AMAQI
12th Jul 2025637 AMAQI
12th Jul 2025638 AMAQI
12th Jul 2025429 AMAQI
12th Jul 20253910 AMAQI
12th Jul 20254311 AMAQI
12th Jul 20254812 PMAQI
12th Jul 2025491 PMAQI
12th Jul 2025482 PMAQI
12th Jul 2025473 PMAQI
12th Jul 2025444 PMAQI
12th Jul 2025435 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025458 PMAQI
12th Jul 2025579 PMAQI
12th Jul 20255710 PMAQI
12th Jul 20255811 PMAQI
13th Jul 20255812 AMAQI
13th Jul 2025601 AMAQI
13th Jul 2025632 AMAQI
13th Jul 2025633 AMAQI
28°C25/32°C
13th Jul 2025614 AMAQI
13th Jul 2025605 AMAQI
13th Jul 2025606 AMAQI
13th Jul 2025607 AMAQI
13th Jul 2025608 AMAQI
13th Jul 2025479 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20254011 AMAQI
13th Jul 20254312 PMAQI
13th Jul 2025511 PMAQI
13th Jul 2025512 PMAQI
13th Jul 2025493 PMAQI
13th Jul 2025464 PMAQI
13th Jul 2025435 PMAQI
13th Jul 2025426 PMAQI
13th Jul 2025407 PMAQI
13th Jul 2025458 PMAQI
13th Jul 2025559 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025571 AMAQI
14th Jul 2025602 AMAQI
14th Jul 2025603 AMAQI
28°C25/32°C
14th Jul 2025594 AMAQI
14th Jul 2025585 AMAQI
14th Jul 2025586 AMAQI
14th Jul 2025587 AMAQI
14th Jul 2025588 AMAQI
14th Jul 2025339 AMAQI
14th Jul 20252110 AMAQI
14th Jul 20252611 AMAQI
14th Jul 20252812 PMAQI
14th Jul 2025341 PMAQI
14th Jul 2025312 PMAQI
14th Jul 2025283 PMAQI
14th Jul 2025284 PMAQI
14th Jul 2025265 PMAQI
14th Jul 2025286 PMAQI
14th Jul 2025297 PMAQI
14th Jul 2025338 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255212 AMAQI
15th Jul 2025541 AMAQI
15th Jul 2025572 AMAQI
15th Jul 2025573 AMAQI
28°C25/32°C
15th Jul 2025574 AMAQI
15th Jul 2025555 AMAQI
15th Jul 2025556 AMAQI
15th Jul 2025557 AMAQI
15th Jul 2025558 AMAQI
15th Jul 2025299 AMAQI
15th Jul 20252210 AMAQI
15th Jul 20252611 AMAQI
15th Jul 20253812 PMAQI
15th Jul 2025461 PMAQI
15th Jul 2025492 PMAQI
15th Jul 2025473 PMAQI
15th Jul 2025464 PMAQI
15th Jul 2025455 PMAQI
15th Jul 2025466 PMAQI
15th Jul 2025497 PMAQI
15th Jul 2025498 PMAQI
15th Jul 2025529 PMAQI
15th Jul 20255310 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255312 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025543 AMAQI
27°C25/31°C
16th Jul 2025544 AMAQI
16th Jul 2025535 AMAQI
16th Jul 2025536 AMAQI
16th Jul 2025537 AMAQI
16th Jul 2025538 AMAQI
16th Jul 2025499 AMAQI
16th Jul 20254910 AMAQI
16th Jul 20254511 AMAQI
16th Jul 20254412 PMAQI
16th Jul 2025421 PMAQI
16th Jul 2025432 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025415 PMAQI
16th Jul 2025386 PMAQI
16th Jul 2025337 PMAQI
16th Jul 2025358 PMAQI
16th Jul 2025499 PMAQI
16th Jul 20255010 PMAQI
16th Jul 20254911 PMAQI
17th Jul 20255012 AMAQI
17th Jul 2025521 AMAQI
17th Jul 2025532 AMAQI
17th Jul 2025533 AMAQI
27°C25/31°C
17th Jul 2025534 AMAQI
17th Jul 2025525 AMAQI
17th Jul 2025536 AMAQI
17th Jul 2025537 AMAQI
17th Jul 2025538 AMAQI
17th Jul 2025259 AMAQI
17th Jul 20251410 AMAQI
17th Jul 20251611 AMAQI
17th Jul 20252112 PMAQI
17th Jul 2025321 PMAQI
17th Jul 2025372 PMAQI
17th Jul 2025403 PMAQI
17th Jul 2025424 PMAQI
17th Jul 2025445 PMAQI
17th Jul 2025396 PMAQI
17th Jul 2025337 PMAQI
17th Jul 2025338 PMAQI
17th Jul 2025439 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254411 PMAQI
18th Jul 20254412 AMAQI
18th Jul 2025481 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025523 AMAQI
25°C24/26°C
18th Jul 2025524 AMAQI
18th Jul 2025515 AMAQI
18th Jul 2025506 AMAQI
18th Jul 2025507 AMAQI
18th Jul 2025508 AMAQI
18th Jul 2025309 AMAQI
18th Jul 20252210 AMAQI
18th Jul 20251911 AMAQI
18th Jul 20252012 PMAQI
18th Jul 2025251 PMAQI
18th Jul 2025262 PMAQI
18th Jul 2025253 PMAQI
18th Jul 2025254 PMAQI
18th Jul 2025305 PMAQI
18th Jul 2025306 PMAQI
18th Jul 2025317 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025429 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254111 PMAQI
19th Jul 20254212 AMAQI
19th Jul 2025451 AMAQI
19th Jul 2025492 AMAQI
19th Jul 2025503 AMAQI
27°C23/30°C
19th Jul 2025484 AMAQI
19th Jul 2025465 AMAQI
19th Jul 2025466 AMAQI
19th Jul 2025467 AMAQI
19th Jul 2025468 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252210 AMAQI
19th Jul 20252711 AMAQI
19th Jul 20252412 PMAQI
19th Jul 2025261 PMAQI
19th Jul 2025242 PMAQI
19th Jul 2025223 PMAQI
19th Jul 2025234 PMAQI
19th Jul 2025265 PMAQI
19th Jul 2025236 PMAQI
19th Jul 2025227 PMAQI
19th Jul 2025258 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253510 PMAQI
19th Jul 20253511 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025381 AMAQI
20th Jul 2025472 AMAQI
20th Jul 2025463 AMAQI
27°C24/31°C
20th Jul 2025454 AMAQI
20th Jul 2025425 AMAQI
20th Jul 2025426 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252211 AMAQI
20th Jul 20252412 PMAQI
20th Jul 2025321 PMAQI
20th Jul 2025362 PMAQI
20th Jul 2025323 PMAQI
20th Jul 2025274 PMAQI
20th Jul 2025215 PMAQI
20th Jul 2025206 PMAQI
20th Jul 2025217 PMAQI
20th Jul 2025258 PMAQI
20th Jul 2025329 PMAQI
20th Jul 20253310 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253112 AMAQI
21st Jul 2025331 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025423 AMAQI
28°C24/32°C
21st Jul 2025414 AMAQI
21st Jul 2025395 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025269 AMAQI
21st Jul 20252410 AMAQI
21st Jul 20252811 AMAQI
21st Jul 20253112 PMAQI
21st Jul 2025341 PMAQI
21st Jul 2025362 PMAQI
21st Jul 2025363 PMAQI
21st Jul 2025304 PMAQI
21st Jul 2025255 PMAQI
21st Jul 2025276 PMAQI
21st Jul 2025287 PMAQI
21st Jul 2025268 PMAQI
21st Jul 2025319 PMAQI
21st Jul 20252910 PMAQI
21st Jul 20252811 PMAQI
22nd Jul 20252812 AMAQI
22nd Jul 2025311 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025383 AMAQI
29°C25/33°C
22nd Jul 2025384 AMAQI
22nd Jul 2025365 AMAQI
22nd Jul 2025376 AMAQI
22nd Jul 2025377 AMAQI
22nd Jul 2025378 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252210 AMAQI
22nd Jul 20252311 AMAQI
22nd Jul 20252912 PMAQI
22nd Jul 2025411 PMAQI
22nd Jul 2025532 PMAQI
22nd Jul 2025543 PMAQI
22nd Jul 2025504 PMAQI
22nd Jul 2025395 PMAQI
22nd Jul 2025266 PMAQI
22nd Jul 2025227 PMAQI
22nd Jul 2025248 PMAQI
22nd Jul 2025269 PMAQI
22nd Jul 20252710 PMAQI
22nd Jul 20252611 PMAQI
23rd Jul 20252512 AMAQI
23rd Jul 2025291 AMAQI
23rd Jul 2025362 AMAQI
23rd Jul 2025363 AMAQI
29°C26/34°C
23rd Jul 2025364 AMAQI
23rd Jul 2025365 AMAQI
23rd Jul 2025366 AMAQI
23rd Jul 2025367 AMAQI
23rd Jul 2025368 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252310 AMAQI
23rd Jul 20253411 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025461 PMAQI
23rd Jul 2025542 PMAQI
23rd Jul 2025513 PMAQI
23rd Jul 2025444 PMAQI
23rd Jul 2025355 PMAQI
23rd Jul 2025326 PMAQI
23rd Jul 2025247 PMAQI
23rd Jul 2025218 PMAQI
23rd Jul 2025259 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252611 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025281 AMAQI
24th Jul 2025342 AMAQI
24th Jul 2025343 AMAQI
29°C26/33°C
24th Jul 2025344 AMAQI
24th Jul 2025355 AMAQI
24th Jul 2025366 AMAQI
24th Jul 2025367 AMAQI
24th Jul 2025368 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20252110 AMAQI
24th Jul 20252511 AMAQI
24th Jul 20253212 PMAQI
24th Jul 2025431 PMAQI
24th Jul 2025582 PMAQI
24th Jul 2025563 PMAQI
24th Jul 2025564 PMAQI
24th Jul 2025465 PMAQI
24th Jul 2025386 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025258 PMAQI
24th Jul 2025269 PMAQI
24th Jul 20252510 PMAQI
24th Jul 20252511 PMAQI
25th Jul 20252412 AMAQI
25th Jul 2025281 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025343 AMAQI
29°C26/34°C
25th Jul 2025344 AMAQI
25th Jul 2025345 AMAQI
25th Jul 2025356 AMAQI
25th Jul 2025367 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025299 AMAQI
25th Jul 20252610 AMAQI
25th Jul 20252411 AMAQI
25th Jul 20253012 PMAQI
25th Jul 2025321 PMAQI
25th Jul 2025272 PMAQI
25th Jul 2025203 PMAQI
25th Jul 2025174 PMAQI
25th Jul 2025175 PMAQI
25th Jul 2025186 PMAQI
25th Jul 2025157 PMAQI
25th Jul 2025168 PMAQI
25th Jul 2025239 PMAQI
25th Jul 20252310 PMAQI
25th Jul 20252211 PMAQI
26th Jul 20252312 AMAQI
26th Jul 2025261 AMAQI
26th Jul 2025322 AMAQI
26th Jul 2025323 AMAQI
29°C26/33°C
26th Jul 2025324 AMAQI
26th Jul 2025315 AMAQI
26th Jul 2025316 AMAQI
26th Jul 2025317 AMAQI
26th Jul 2025318 AMAQI
26th Jul 2025229 AMAQI
26th Jul 20252210 AMAQI
26th Jul 20252111 AMAQI
26th Jul 20252212 PMAQI
26th Jul 2025231 PMAQI
26th Jul 2025252 PMAQI
26th Jul 2025183 PMAQI
26th Jul 2025184 PMAQI
26th Jul 2025185 PMAQI
26th Jul 2025176 PMAQI
26th Jul 2025167 PMAQI
26th Jul 2025208 PMAQI
26th Jul 2025239 PMAQI
26th Jul 20252310 PMAQI
26th Jul 20252311 PMAQI
27th Jul 20252412 AMAQI
27th Jul 2025261 AMAQI
27th Jul 2025302 AMAQI
27th Jul 2025303 AMAQI
29°C26/34°C
27th Jul 2025304 AMAQI
27th Jul 2025285 AMAQI
27th Jul 2025286 AMAQI
27th Jul 2025287 AMAQI
27th Jul 2025288 AMAQI
27th Jul 2025249 AMAQI
27th Jul 20251910 AMAQI
27th Jul 20251911 AMAQI
27th Jul 20252112 PMAQI
27th Jul 2025271 PMAQI
27th Jul 2025332 PMAQI
27th Jul 2025313 PMAQI
27th Jul 2025234 PMAQI
27th Jul 2025205 PMAQI
27th Jul 2025186 PMAQI
27th Jul 2025197 PMAQI
27th Jul 2025178 PMAQI
27th Jul 2025219 PMAQI
27th Jul 20252310 PMAQI
27th Jul 20252211 PMAQI
28th Jul 20252212 AMAQI
28th Jul 2025251 AMAQI
28th Jul 2025282 AMAQI
28th Jul 2025283 AMAQI
29°C26/33°C
28th Jul 2025284 AMAQI
28th Jul 2025275 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025277 AMAQI
28th Jul 2025278 AMAQI
28th Jul 2025209 AMAQI
28th Jul 20252110 AMAQI
28th Jul 20253211 AMAQI
28th Jul 20255112 PMAQI
28th Jul 2025491 PMAQI
28th Jul 2025552 PMAQI
28th Jul 2025543 PMAQI
28th Jul 2025464 PMAQI
28th Jul 2025355 PMAQI
28th Jul 2025306 PMAQI
28th Jul 2025287 PMAQI
28th Jul 2025248 PMAQI
28th Jul 2025259 PMAQI
28th Jul 20252510 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252412 AMAQI
29th Jul 2025251 AMAQI
29th Jul 2025272 AMAQI
29th Jul 2025263 AMAQI
30°C26/34°C
29th Jul 2025274 AMAQI
29th Jul 2025285 AMAQI
29th Jul 2025286 AMAQI
29th Jul 2025287 AMAQI
29th Jul 2025288 AMAQI
29th Jul 2025259 AMAQI
29th Jul 20252910 AMAQI
29th Jul 20254311 AMAQI
29th Jul 20255112 PMAQI
29th Jul 2025551 PMAQI
29th Jul 2025552 PMAQI
29th Jul 2025563 PMAQI
29th Jul 2025584 PMAQI
29th Jul 2025605 PMAQI
29th Jul 2025586 PMAQI
29th Jul 2025487 PMAQI
29th Jul 2025308 PMAQI
29th Jul 2025289 PMAQI
29th Jul 20252610 PMAQI
29th Jul 20252511 PMAQI
30th Jul 20252412 AMAQI
30th Jul 2025251 AMAQI
30th Jul 2025272 AMAQI
30th Jul 2025273 AMAQI
30°C27/36°C
30th Jul 2025284 AMAQI
30th Jul 2025315 AMAQI
30th Jul 2025316 AMAQI
30th Jul 2025317 AMAQI
30th Jul 2025318 AMAQI
30th Jul 2025329 AMAQI
30th Jul 20253810 AMAQI
30th Jul 20255111 AMAQI
30th Jul 20255712 PMAQI
30th Jul 2025611 PMAQI
30th Jul 2025652 PMAQI
30th Jul 2025623 PMAQI
30th Jul 2025594 PMAQI
30th Jul 2025525 PMAQI
30th Jul 2025436 PMAQI
30th Jul 2025357 PMAQI
30th Jul 2025318 PMAQI
30th Jul 2025319 PMAQI
30th Jul 20253010 PMAQI
30th Jul 20252911 PMAQI
31st Jul 20252812 AMAQI
31st Jul 2025291 AMAQI
31st Jul 2025282 AMAQI
31st Jul 2025293 AMAQI
30°C27/35°C
31st Jul 2025284 AMAQI
31st Jul 2025285 AMAQI
31st Jul 2025286 AMAQI
31st Jul 2025287 AMAQI
31st Jul 2025288 AMAQI
31st Jul 2025289 AMAQI
31st Jul 20252810 AMAQI
31st Jul 20254011 AMAQI
31st Jul 20255112 PMAQI
31st Jul 2025521 PMAQI
31st Jul 2025542 PMAQI
31st Jul 2025553 PMAQI
31st Jul 2025564 PMAQI
31st Jul 2025535 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025447 PMAQI
31st Jul 2025348 PMAQI
31st Jul 2025369 PMAQI
31st Jul 20253410 PMAQI
31st Jul 20253111 PMAQI
1st Aug 20253212 AMAQI
1st Aug 2025311 AMAQI
1st Aug 2025292 AMAQI
1st Aug 2025293 AMAQI
30°C27/33°C
1st Aug 2025324 AMAQI
1st Aug 2025325 AMAQI
1st Aug 2025336 AMAQI
1st Aug 2025357 AMAQI
1st Aug 2025348 AMAQI
1st Aug 2025479 AMAQI
1st Aug 20254810 AMAQI
1st Aug 20255211 AMAQI
1st Aug 20255212 PMAQI
1st Aug 2025531 PMAQI
1st Aug 2025612 PMAQI
1st Aug 2025573 PMAQI
1st Aug 2025604 PMAQI
1st Aug 2025605 PMAQI
1st Aug 2025626 PMAQI
1st Aug 2025587 PMAQI
1st Aug 2025518 PMAQI
1st Aug 2025429 PMAQI
1st Aug 20254310 PMAQI
1st Aug 20254011 PMAQI
2nd Aug 20253812 AMAQI
2nd Aug 2025331 AMAQI
2nd Aug 2025332 AMAQI
2nd Aug 2025323 AMAQI
31°C27/37°C
2nd Aug 2025354 AMAQI
2nd Aug 2025375 AMAQI
2nd Aug 2025396 AMAQI
2nd Aug 2025377 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025529 AMAQI
2nd Aug 20255410 AMAQI
2nd Aug 20255611 AMAQI
2nd Aug 20255012 PMAQI
2nd Aug 2025531 PMAQI
2nd Aug 2025602 PMAQI
2nd Aug 2025583 PMAQI
2nd Aug 2025544 PMAQI
2nd Aug 2025545 PMAQI
2nd Aug 2025516 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025478 PMAQI
2nd Aug 2025419 PMAQI
2nd Aug 20253810 PMAQI
2nd Aug 20254211 PMAQI
3rd Aug 20254412 AMAQI
3rd Aug 2025381 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025373 AMAQI
31°C27/37°C
3rd Aug 2025404 AMAQI
3rd Aug 2025425 AMAQI
3rd Aug 2025416 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025418 AMAQI
3rd Aug 2025489 AMAQI
3rd Aug 20255610 AMAQI
3rd Aug 20255811 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025551 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025543 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025495 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025497 PMAQI
3rd Aug 2025468 PMAQI
3rd Aug 2025449 PMAQI
3rd Aug 20254510 PMAQI
3rd Aug 20254311 PMAQI
4th Aug 20254012 AMAQI
4th Aug 2025391 AMAQI
4th Aug 2025402 AMAQI
4th Aug 2025403 AMAQI
32°C28/37°C
4th Aug 2025444 AMAQI
4th Aug 2025445 AMAQI
4th Aug 2025446 AMAQI
4th Aug 2025457 AMAQI
4th Aug 2025448 AMAQI
4th Aug 2025699 AMAQI
4th Aug 20258010 AMAQI
4th Aug 20258611 AMAQI
4th Aug 20258312 PMAQI
4th Aug 2025891 PMAQI
4th Aug 2025922 PMAQI
4th Aug 2025963 PMAQI
4th Aug 2025874 PMAQI
4th Aug 20251015 PMAQI
4th Aug 2025956 PMAQI
4th Aug 2025837 PMAQI
4th Aug 2025708 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20254611 PMAQI
5th Aug 20254912 AMAQI
5th Aug 2025451 AMAQI
5th Aug 2025422 AMAQI
5th Aug 2025423 AMAQI
30°C27/34°C
5th Aug 2025524 AMAQI
5th Aug 2025565 AMAQI
5th Aug 2025566 AMAQI
5th Aug 2025567 AMAQI
5th Aug 2025558 AMAQI
5th Aug 2025609 AMAQI
5th Aug 20256110 AMAQI
5th Aug 20255911 AMAQI
5th Aug 20256112 PMAQI
5th Aug 2025591 PMAQI
5th Aug 2025552 PMAQI
5th Aug 2025503 PMAQI
5th Aug 2025564 PMAQI
5th Aug 2025525 PMAQI
5th Aug 2025466 PMAQI
5th Aug 2025507 PMAQI
5th Aug 2025498 PMAQI
5th Aug 2025529 PMAQI
5th Aug 20254810 PMAQI
5th Aug 20254811 PMAQI
6th Aug 20254912 AMAQI
6th Aug 2025521 AMAQI
6th Aug 2025512 AMAQI
6th Aug 2025503 AMAQI
32°C28/37°C
6th Aug 2025534 AMAQI
4 AM6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025538 AMAQI
6th Aug 2025469 AMAQI
6th Aug 20254010 AMAQI
6th Aug 20254811 AMAQI
11 AM6th Aug 20255112 PMAQI
6th Aug 2025521 PMAQI
6th Aug 2025522 PMAQI
6th Aug 2025533 PMAQI
6th Aug 2025524 PMAQI
6th Aug 2025565 PMAQI
6th Aug 2025576 PMAQI
6th Aug 2025597 PMAQI
7 PM11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
2 PM - 7 PM
48AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
10 AM
38AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 7 PM (Avg. 48), while the lowest AQI was between 10 AM to 10 AM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 3 AM
45AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
8 PM - 11 PM
42AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 45), while the lowest AQI was between 8 PM to 11 PM (Avg. 42).
2025 Days Vs Air Quality
Obu, Aichi, Japan
2025
92%
199
8%
18
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
199 DaysModerate
18 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2025, 92% of 218 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Obu, Aichi, Japan
AQI levels in 2025
AQI
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.
1st January 2025
27AQI
27AQI
2nd January 2025
28AQI
28AQI
3rd January 2025
29AQI
29AQI
4th January 2025
27AQI
27AQI
5th January 2025
25AQI
25AQI
6th January 2025
23AQI
23AQI
7th January 2025
26AQI
26AQI
8th January 2025
25AQI
25AQI
9th January 2025
26AQI
26AQI
10th January 2025
21AQI
21AQI
11th January 2025
23AQI
23AQI
12th January 2025
24AQI
24AQI
13th January 2025
26AQI
26AQI
14th January 2025
29AQI
29AQI
15th January 2025
30AQI
30AQI
16th January 2025
24AQI
24AQI
17th January 2025
27AQI
27AQI
18th January 2025
25AQI
25AQI
19th January 2025
28AQI
28AQI
20th January 2025
29AQI
29AQI
21st January 2025
32AQI
32AQI
22nd January 2025
31AQI
31AQI
23rd January 2025
40AQI
40AQI
24th January 2025
38AQI
38AQI
25th January 2025
38AQI
38AQI
26th January 2025
33AQI
33AQI
27th January 2025
28AQI
28AQI
28th January 2025
30AQI
30AQI
29th January 2025
30AQI
30AQI
30th January 2025
29AQI
29AQI
31st January 2025
34AQI
34AQI
1st February 2025
37AQI
37AQI
2nd February 2025
27AQI
27AQI
3rd February 2025
31AQI
31AQI
4th February 2025
29AQI
29AQI
5th February 2025
29AQI
29AQI
6th February 2025
29AQI
29AQI
7th February 2025
30AQI
30AQI
8th February 2025
27AQI
27AQI
9th February 2025
28AQI
28AQI
10th February 2025
28AQI
28AQI
11th February 2025
30AQI
30AQI
12th February 2025
25AQI
25AQI
13th February 2025
31AQI
31AQI
14th February 2025
28AQI
28AQI
15th February 2025
29AQI
29AQI
16th February 2025
30AQI
30AQI
17th February 2025
33AQI
33AQI
18th February 2025
29AQI
29AQI
19th February 2025
30AQI
30AQI
20th February 2025
28AQI
28AQI
21st February 2025
29AQI
29AQI
22nd February 2025
29AQI
29AQI
23rd February 2025
30AQI
30AQI
24th February 2025
31AQI
31AQI
25th February 2025
31AQI
31AQI
26th February 2025
36AQI
36AQI
27th February 2025
39AQI
39AQI
28th February 2025
39AQI
39AQI
1st March 2025
40AQI
40AQI
2nd March 2025
40AQI
40AQI
3rd March 2025
33AQI
33AQI
4th March 2025
27AQI
27AQI
5th March 2025
24AQI
24AQI
6th March 2025
31AQI
31AQI
7th March 2025
30AQI
30AQI
8th March 2025
31AQI
31AQI
9th March 2025
35AQI
35AQI
10th March 2025
34AQI
34AQI
11th March 2025
28AQI
28AQI
12th March 2025
27AQI
27AQI
13th March 2025
35AQI
35AQI
14th March 2025
22AQI
22AQI
15th March 2025
22AQI
22AQI
16th March 2025
17AQI
17AQI
17th March 2025
16AQI
16AQI
18th March 2025
16AQI
16AQI
19th March 2025
14AQI
14AQI
20th March 2025
20AQI
20AQI
21st March 2025
32AQI
32AQI
22nd March 2025
31AQI
31AQI
23rd March 2025
39AQI
39AQI
24th March 2025
39AQI
39AQI
25th March 2025
54AQI
54AQI
26th March 2025
78AQI
78AQI
27th March 2025
66AQI
66AQI
28th March 2025
43AQI
43AQI
29th March 2025
34AQI
34AQI
30th March 2025
33AQI
33AQI
31st March 2025
34AQI
34AQI
1st April 2025
26AQI
26AQI
2nd April 2025
25AQI
25AQI
3rd April 2025
18AQI
18AQI
4th April 2025
18AQI
18AQI
5th April 2025
21AQI
21AQI
6th April 2025
16AQI
16AQI
7th April 2025
20AQI
20AQI
8th April 2025
21AQI
21AQI
9th April 2025
19AQI
19AQI
10th April 2025
30AQI
30AQI
11th April 2025
27AQI
27AQI
12th April 2025
26AQI
26AQI
13th April 2025
19AQI
19AQI
14th April 2025
24AQI
24AQI
15th April 2025
18AQI
18AQI
16th April 2025
22AQI
22AQI
17th April 2025
26AQI
26AQI
18th April 2025
33AQI
33AQI
19th April 2025
33AQI
33AQI
20th April 2025
31AQI
31AQI
21st April 2025
24AQI
24AQI
22nd April 2025
23AQI
23AQI
23rd April 2025
16AQI
16AQI
24th April 2025
15AQI
15AQI
25th April 2025
26AQI
26AQI
26th April 2025
24AQI
24AQI
27th April 2025
27AQI
27AQI
28th April 2025
24AQI
24AQI
29th April 2025
25AQI
25AQI
30th April 2025
28AQI
28AQI
1st May 2025
24AQI
24AQI
2nd May 2025
21AQI
21AQI
3rd May 2025
21AQI
21AQI
4th May 2025
20AQI
20AQI
5th May 2025
19AQI
19AQI
6th May 2025
17AQI
17AQI
7th May 2025
15AQI
15AQI
8th May 2025
17AQI
17AQI
9th May 2025
16AQI
16AQI
10th May 2025
15AQI
15AQI
11th May 2025
16AQI
16AQI
12th May 2025
21AQI
21AQI
13th May 2025
24AQI
24AQI
14th May 2025
27AQI
27AQI
15th May 2025
27AQI
27AQI
16th May 2025
24AQI
24AQI
17th May 2025
20AQI
20AQI
18th May 2025
27AQI
27AQI
19th May 2025
28AQI
28AQI
20th May 2025
37AQI
37AQI
21st May 2025
34AQI
34AQI
22nd May 2025
26AQI
26AQI
23rd May 2025
25AQI
25AQI
24th May 2025
24AQI
24AQI
25th May 2025
18AQI
18AQI
26th May 2025
18AQI
18AQI
27th May 2025
18AQI
18AQI
28th May 2025
17AQI
17AQI
29th May 2025
19AQI
19AQI
30th May 2025
17AQI
17AQI
31st May 2025
16AQI
16AQI
1st June 2025
16AQI
16AQI
2nd June 2025
22AQI
22AQI
3rd June 2025
16AQI
16AQI
4th June 2025
20AQI
20AQI
5th June 2025
21AQI
21AQI
6th June 2025
23AQI
23AQI
7th June 2025
28AQI
28AQI
8th June 2025
34AQI
34AQI
9th June 2025
23AQI
23AQI
10th June 2025
20AQI
20AQI
11th June 2025
19AQI
19AQI
12th June 2025
23AQI
23AQI
13th June 2025
24AQI
24AQI
14th June 2025
20AQI
20AQI
15th June 2025
19AQI
19AQI
16th June 2025
22AQI
22AQI
17th June 2025
23AQI
23AQI
18th June 2025
25AQI
25AQI
19th June 2025
29AQI
29AQI
20th June 2025
31AQI
31AQI
21st June 2025
25AQI
25AQI
22nd June 2025
17AQI
17AQI
23rd June 2025
16AQI
16AQI
24th June 2025
16AQI
16AQI
25th June 2025
17AQI
17AQI
26th June 2025
16AQI
16AQI
27th June 2025
20AQI
20AQI
28th June 2025
19AQI
19AQI
29th June 2025
21AQI
21AQI
30th June 2025
40AQI
40AQI
1st July 2025
51AQI
51AQI
2nd July 2025
73AQI
73AQI
3rd July 2025
70AQI
70AQI
4th July 2025
69AQI
69AQI
5th July 2025
79AQI
79AQI
6th July 2025
66AQI
66AQI
7th July 2025
69AQI
69AQI
8th July 2025
77AQI
77AQI
9th July 2025
84AQI
84AQI
10th July 2025
64AQI
64AQI
11th July 2025
55AQI
55AQI
12th July 2025
54AQI
54AQI
13th July 2025
53AQI
53AQI
14th July 2025
45AQI
45AQI
15th July 2025
49AQI
49AQI
16th July 2025
48AQI
48AQI
17th July 2025
42AQI
42AQI
18th July 2025
39AQI
39AQI
19th July 2025
34AQI
34AQI
20th July 2025
33AQI
33AQI
21st July 2025
32AQI
32AQI
22nd July 2025
33AQI
33AQI
23rd July 2025
33AQI
33AQI
24th July 2025
34AQI
34AQI
25th July 2025
26AQI
26AQI
26th July 2025
24AQI
24AQI
27th July 2025
24AQI
24AQI
28th July 2025
31AQI
31AQI
29th July 2025
36AQI
36AQI
30th July 2025
37AQI
37AQI
31st July 2025
37AQI
37AQI
1st August 2025
44AQI
44AQI
2nd August 2025
44AQI
44AQI
3rd August 2025
47AQI
47AQI
4th August 2025
64AQI
64AQI
5th August 2025
52AQI
52AQI
29AQI
30AQI
33AQI
24AQI
22AQI
22AQI
48AQI
50AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202530AQI
31
28
28
3
30
31
30
18
13
3
2
199
18
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
May22AQI
202432AQI
31
28
1
27
4
26
4
30
1
30
30
1
31
30
31
30
31
355
11
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
December25AQI
202333AQI
30
1
28
29
2
28
2
29
2
28
2
29
2
31
30
31
25
4
30
1
348
16
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
August22AQI
202231AQI
31
21
28
3
15
3
31
30
21
2
29
31
28
2
31
298
8
Highest AQI recorded in
March40AQI
Lowest AQI recorded in
August18AQI
202125AQI
31
28
30
1
30
31
25
5
31
31
30
31
29
1
31
358
7
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
January16AQI
202016AQI
13
21
18
30
31
31
19
31
30
31
255
Highest AQI recorded in
August22AQI
Lowest AQI recorded in
December14AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
33AQILeast Polluted Year Recorded
2020(Avg.)
16AQIObu's annual 2025 AQI (30) shows an average percentage change of 17.5% (worsened AQI) compared to previous years: 2020 (16), 2021 (25), 2022 (31), 2023 (33), 2024 (32).
