Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Ohiracho, Okazaki, 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+

October Air Quality Analysis

Ohiracho, Okazaki, Aichi, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Oct 2022
65AQI
Lowest AQI recorded on
8th Oct 2024
20AQI

Same Day Analysis (15th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 54 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 15th Oct - 16th Oct 2025

Ohiracho, Okazaki, Aichi, Japan

AQI
Day
Night
.

5 AM15th Oct 2025

5 PM

4 AM16th Oct 2025

Day time
Avg. Highest Time
5AM15th Oct

62AQI

Avg. Lowest Time
10AM15th Oct

44AQI

Night time
Avg. Highest Time
7PM15th Oct

56AQI

Avg. Lowest Time
9PM15th Oct

45AQI

In the last 24 hours,

Ohiracho's AQI reached its highest point of 62 at 5 AM during the Day, while the lowest point, 44, was recorded at 10 AM during the Day between 15th Oct and 16th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Ohiracho, Okazaki, Aichi, Japan

SepOct
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th
Day
Night
16th Sep 2025365 AMAQI
16th Sep 2025366 AMAQI
16th Sep 2025367 AMAQI
16th Sep 2025368 AMAQI
16th Sep 2025529 AMAQI
16th Sep 20255410 AMAQI
16th Sep 20254911 AMAQI
16th Sep 20255012 PMAQI
16th Sep 2025521 PMAQI
16th Sep 2025532 PMAQI
16th Sep 2025553 PMAQI
16th Sep 2025604 PMAQI
16th Sep 2025595 PMAQI
16th Sep 2025586 PMAQI
16th Sep 2025577 PMAQI
16th Sep 2025508 PMAQI
16th Sep 2025479 PMAQI
16th Sep 20254810 PMAQI
16th Sep 20255011 PMAQI
17th Sep 20255212 AMAQI
17th Sep 2025421 AMAQI
17th Sep 2025342 AMAQI
17th Sep 2025353 AMAQI
17th Sep 2025384 AMAQI

28°C25/33°C

17th Sep 2025405 AMAQI
17th Sep 2025406 AMAQI
17th Sep 2025407 AMAQI
17th Sep 2025408 AMAQI
17th Sep 2025559 AMAQI
17th Sep 20255710 AMAQI
17th Sep 20256411 AMAQI
17th Sep 20256312 PMAQI
17th Sep 2025621 PMAQI
17th Sep 2025642 PMAQI
17th Sep 2025603 PMAQI
17th Sep 2025584 PMAQI
17th Sep 2025605 PMAQI
17th Sep 2025626 PMAQI
17th Sep 2025567 PMAQI
17th Sep 2025568 PMAQI
17th Sep 2025549 PMAQI
17th Sep 20255410 PMAQI
17th Sep 20255511 PMAQI
18th Sep 20255512 AMAQI
18th Sep 2025521 AMAQI
18th Sep 2025392 AMAQI
18th Sep 2025403 AMAQI
18th Sep 2025424 AMAQI

29°C26/33°C

18th Sep 2025475 AMAQI
18th Sep 2025476 AMAQI
18th Sep 2025477 AMAQI
18th Sep 2025478 AMAQI
18th Sep 2025649 AMAQI
18th Sep 20257210 AMAQI
18th Sep 20256711 AMAQI
18th Sep 20256412 PMAQI
18th Sep 2025611 PMAQI
18th Sep 2025542 PMAQI
18th Sep 2025523 PMAQI
18th Sep 2025444 PMAQI
18th Sep 2025305 PMAQI
18th Sep 2025246 PMAQI
18th Sep 2025187 PMAQI
18th Sep 2025228 PMAQI
18th Sep 2025339 PMAQI
18th Sep 20253410 PMAQI
18th Sep 20253311 PMAQI
19th Sep 20253312 AMAQI
19th Sep 2025361 AMAQI
19th Sep 2025482 AMAQI
19th Sep 2025483 AMAQI
19th Sep 2025504 AMAQI

28°C25/32°C

19th Sep 2025525 AMAQI
19th Sep 2025526 AMAQI
19th Sep 2025527 AMAQI
19th Sep 2025528 AMAQI
19th Sep 2025279 AMAQI
19th Sep 20252110 AMAQI
19th Sep 20252211 AMAQI
19th Sep 20252812 PMAQI
19th Sep 2025271 PMAQI
19th Sep 2025232 PMAQI
19th Sep 2025243 PMAQI
19th Sep 2025234 PMAQI
19th Sep 2025245 PMAQI
19th Sep 2025246 PMAQI
19th Sep 2025277 PMAQI
19th Sep 2025328 PMAQI
19th Sep 2025379 PMAQI
19th Sep 20254110 PMAQI
19th Sep 20254211 PMAQI
20th Sep 20253912 AMAQI
20th Sep 2025411 AMAQI
20th Sep 2025482 AMAQI
20th Sep 2025483 AMAQI
20th Sep 2025464 AMAQI

24°C23/26°C

20th Sep 2025425 AMAQI
20th Sep 2025436 AMAQI
20th Sep 2025427 AMAQI
20th Sep 2025428 AMAQI
20th Sep 2025309 AMAQI
20th Sep 20252710 AMAQI
20th Sep 20252911 AMAQI
20th Sep 20252812 PMAQI
20th Sep 2025291 PMAQI
20th Sep 2025262 PMAQI
20th Sep 2025283 PMAQI
20th Sep 2025264 PMAQI
20th Sep 2025245 PMAQI
20th Sep 2025346 PMAQI
20th Sep 2025467 PMAQI
20th Sep 2025448 PMAQI
20th Sep 2025479 PMAQI
20th Sep 20254710 PMAQI
20th Sep 20254811 PMAQI
21st Sep 20254612 AMAQI
21st Sep 2025471 AMAQI
21st Sep 2025432 AMAQI
21st Sep 2025443 AMAQI
21st Sep 2025424 AMAQI

23°C22/24°C

21st Sep 2025405 AMAQI
21st Sep 2025406 AMAQI
21st Sep 2025407 AMAQI
21st Sep 2025408 AMAQI
21st Sep 2025229 AMAQI
21st Sep 20251610 AMAQI
21st Sep 20251611 AMAQI
21st Sep 20251812 PMAQI
21st Sep 2025171 PMAQI
21st Sep 2025162 PMAQI
21st Sep 2025163 PMAQI
21st Sep 2025164 PMAQI
21st Sep 2025145 PMAQI
21st Sep 2025146 PMAQI
21st Sep 2025167 PMAQI
21st Sep 2025218 PMAQI
21st Sep 2025309 PMAQI
21st Sep 20253010 PMAQI
21st Sep 20253111 PMAQI
22nd Sep 20253112 AMAQI
22nd Sep 2025381 AMAQI
22nd Sep 2025432 AMAQI
22nd Sep 2025423 AMAQI
22nd Sep 2025414 AMAQI

25°C22/30°C

22nd Sep 2025375 AMAQI
22nd Sep 2025376 AMAQI
22nd Sep 2025367 AMAQI
22nd Sep 2025378 AMAQI
22nd Sep 2025259 AMAQI
22nd Sep 20252110 AMAQI
22nd Sep 20252411 AMAQI
22nd Sep 20252612 PMAQI
22nd Sep 2025281 PMAQI
22nd Sep 2025252 PMAQI
22nd Sep 2025273 PMAQI
22nd Sep 2025284 PMAQI
22nd Sep 2025335 PMAQI
22nd Sep 2025286 PMAQI
22nd Sep 2025277 PMAQI
22nd Sep 2025328 PMAQI
22nd Sep 2025349 PMAQI
22nd Sep 20253710 PMAQI
22nd Sep 20253711 PMAQI
23rd Sep 20253612 AMAQI
23rd Sep 2025381 AMAQI
23rd Sep 2025402 AMAQI
23rd Sep 2025393 AMAQI
23rd Sep 2025384 AMAQI

23°C20/26°C

23rd Sep 2025355 AMAQI
23rd Sep 2025346 AMAQI
23rd Sep 2025367 AMAQI
23rd Sep 2025358 AMAQI
23rd Sep 2025329 AMAQI
23rd Sep 20253210 AMAQI
23rd Sep 20253611 AMAQI
23rd Sep 20253712 PMAQI
23rd Sep 2025391 PMAQI
23rd Sep 2025402 PMAQI
23rd Sep 2025413 PMAQI
23rd Sep 2025384 PMAQI
23rd Sep 2025395 PMAQI
23rd Sep 2025326 PMAQI
23rd Sep 2025247 PMAQI
23rd Sep 2025308 PMAQI
23rd Sep 2025349 PMAQI
23rd Sep 20253610 PMAQI
23rd Sep 20253411 PMAQI
24th Sep 20253112 AMAQI
24th Sep 2025351 AMAQI
24th Sep 2025372 AMAQI
24th Sep 2025383 AMAQI
24th Sep 2025384 AMAQI

23°C20/26°C

24th Sep 2025385 AMAQI
24th Sep 2025386 AMAQI
24th Sep 2025377 AMAQI
24th Sep 2025368 AMAQI
24th Sep 2025389 AMAQI
24th Sep 20253610 AMAQI
24th Sep 20253411 AMAQI
24th Sep 20254012 PMAQI
24th Sep 2025391 PMAQI
24th Sep 2025342 PMAQI
24th Sep 2025343 PMAQI
24th Sep 2025294 PMAQI
24th Sep 2025275 PMAQI
24th Sep 2025276 PMAQI
24th Sep 2025267 PMAQI
24th Sep 2025268 PMAQI
24th Sep 2025319 PMAQI
24th Sep 20253210 PMAQI
24th Sep 20253211 PMAQI
25th Sep 20253612 AMAQI
25th Sep 2025371 AMAQI
25th Sep 2025362 AMAQI
25th Sep 2025363 AMAQI
25th Sep 2025364 AMAQI

23°C20/27°C

25th Sep 2025375 AMAQI
25th Sep 2025376 AMAQI
25th Sep 2025367 AMAQI
25th Sep 2025368 AMAQI
25th Sep 2025359 AMAQI
25th Sep 20253010 AMAQI
25th Sep 20253011 AMAQI
25th Sep 20253212 PMAQI
25th Sep 2025361 PMAQI
25th Sep 2025362 PMAQI
25th Sep 2025453 PMAQI
25th Sep 2025524 PMAQI
25th Sep 2025555 PMAQI
25th Sep 2025586 PMAQI
25th Sep 2025497 PMAQI
25th Sep 2025448 PMAQI
25th Sep 2025449 PMAQI
25th Sep 20254710 PMAQI
25th Sep 20254611 PMAQI
26th Sep 20254912 AMAQI
26th Sep 2025481 AMAQI
26th Sep 2025462 AMAQI
26th Sep 2025453 AMAQI
26th Sep 2025304 AMAQI

25°C22/28°C

26th Sep 2025385 AMAQI
26th Sep 2025326 AMAQI
26th Sep 2025307 AMAQI
26th Sep 2025298 AMAQI
26th Sep 2025349 AMAQI
26th Sep 20252910 AMAQI
26th Sep 20253111 AMAQI
26th Sep 20253212 PMAQI
26th Sep 2025341 PMAQI
26th Sep 2025342 PMAQI
26th Sep 2025343 PMAQI
26th Sep 2025314 PMAQI
26th Sep 2025255 PMAQI
26th Sep 2025226 PMAQI
26th Sep 2025327 PMAQI
26th Sep 2025368 PMAQI
26th Sep 2025249 PMAQI
26th Sep 20252810 PMAQI
26th Sep 20252711 PMAQI
27th Sep 20252712 AMAQI
27th Sep 2025261 AMAQI
27th Sep 2025282 AMAQI
27th Sep 2025323 AMAQI
27th Sep 2025324 AMAQI

26°C22/32°C

27th Sep 2025285 AMAQI
27th Sep 2025286 AMAQI
27th Sep 2025287 AMAQI
27th Sep 2025378 AMAQI
27th Sep 2025399 AMAQI
27th Sep 20253910 AMAQI
27th Sep 20253411 AMAQI
27th Sep 20253812 PMAQI
27th Sep 2025391 PMAQI
27th Sep 2025392 PMAQI
27th Sep 2025393 PMAQI
27th Sep 2025394 PMAQI
27th Sep 2025435 PMAQI
27th Sep 2025406 PMAQI
27th Sep 2025487 PMAQI
27th Sep 2025468 PMAQI
27th Sep 2025449 PMAQI
27th Sep 20254110 PMAQI
27th Sep 20253911 PMAQI
28th Sep 20253912 AMAQI
28th Sep 2025391 AMAQI
28th Sep 2025332 AMAQI
28th Sep 2025373 AMAQI
28th Sep 2025354 AMAQI

25°C21/29°C

28th Sep 2025335 AMAQI
28th Sep 2025336 AMAQI
28th Sep 2025337 AMAQI
28th Sep 2025338 AMAQI
28th Sep 2025349 AMAQI
28th Sep 20253310 AMAQI
28th Sep 20253311 AMAQI
28th Sep 20253212 PMAQI
28th Sep 2025371 PMAQI
28th Sep 2025342 PMAQI
28th Sep 2025373 PMAQI
28th Sep 2025374 PMAQI
28th Sep 2025375 PMAQI
28th Sep 2025396 PMAQI
28th Sep 2025397 PMAQI
28th Sep 2025398 PMAQI
28th Sep 2025349 PMAQI
28th Sep 20253110 PMAQI
28th Sep 20253711 PMAQI
29th Sep 20253912 AMAQI
29th Sep 2025351 AMAQI
29th Sep 2025332 AMAQI
29th Sep 2025293 AMAQI
29th Sep 2025314 AMAQI

25°C22/28°C

29th Sep 2025295 AMAQI
29th Sep 2025286 AMAQI
29th Sep 2025317 AMAQI
29th Sep 2025278 AMAQI
29th Sep 2025399 AMAQI
29th Sep 20254010 AMAQI
29th Sep 20253911 AMAQI
29th Sep 20252612 PMAQI
29th Sep 2025201 PMAQI
29th Sep 2025222 PMAQI
29th Sep 2025223 PMAQI
29th Sep 2025274 PMAQI
29th Sep 2025225 PMAQI
29th Sep 2025236 PMAQI
29th Sep 2025187 PMAQI
29th Sep 2025168 PMAQI
29th Sep 2025229 PMAQI
29th Sep 20253410 PMAQI
29th Sep 20253311 PMAQI
30th Sep 20252312 AMAQI
30th Sep 2025231 AMAQI
30th Sep 2025252 AMAQI
30th Sep 2025273 AMAQI
30th Sep 2025274 AMAQI

24°C22/28°C

30th Sep 2025285 AMAQI
30th Sep 2025246 AMAQI
30th Sep 2025237 AMAQI
30th Sep 2025198 AMAQI
30th Sep 2025329 AMAQI
30th Sep 20252010 AMAQI
30th Sep 20251611 AMAQI
30th Sep 20251812 PMAQI
30th Sep 2025301 PMAQI
30th Sep 2025282 PMAQI
30th Sep 2025223 PMAQI
30th Sep 2025254 PMAQI
30th Sep 2025285 PMAQI
30th Sep 2025306 PMAQI
30th Sep 2025357 PMAQI
30th Sep 2025398 PMAQI
30th Sep 2025449 PMAQI
30th Sep 20254310 PMAQI
30th Sep 20253711 PMAQI
1st Oct 20253212 AMAQI
1st Oct 2025301 AMAQI
1st Oct 2025302 AMAQI
1st Oct 2025363 AMAQI
1st Oct 2025304 AMAQI

23°C20/26°C

1st Oct 2025365 AMAQI
1st Oct 2025326 AMAQI
1st Oct 2025397 AMAQI
1st Oct 2025338 AMAQI
1st Oct 2025359 AMAQI
1st Oct 20254510 AMAQI
1st Oct 20253211 AMAQI
1st Oct 20253012 PMAQI
1st Oct 2025261 PMAQI
1st Oct 2025282 PMAQI
1st Oct 2025283 PMAQI
1st Oct 2025284 PMAQI
1st Oct 2025305 PMAQI
1st Oct 2025306 PMAQI
1st Oct 2025277 PMAQI
1st Oct 2025498 PMAQI
1st Oct 2025559 PMAQI
1st Oct 20255410 PMAQI
1st Oct 20255311 PMAQI
2nd Oct 20255412 AMAQI
2nd Oct 2025541 AMAQI
2nd Oct 2025542 AMAQI
2nd Oct 2025563 AMAQI
2nd Oct 2025564 AMAQI

22°C20/24°C

2nd Oct 2025575 AMAQI
2nd Oct 2025596 AMAQI
2nd Oct 2025567 AMAQI
2nd Oct 2025568 AMAQI
2nd Oct 2025579 AMAQI
2nd Oct 20255610 AMAQI
2nd Oct 20255411 AMAQI
2nd Oct 20255012 PMAQI
2nd Oct 2025471 PMAQI
2nd Oct 2025422 PMAQI
2nd Oct 2025433 PMAQI
2nd Oct 2025474 PMAQI
2nd Oct 2025465 PMAQI
2nd Oct 2025526 PMAQI
2nd Oct 2025547 PMAQI
2nd Oct 2025568 PMAQI
2nd Oct 2025569 PMAQI
2nd Oct 20255510 PMAQI
2nd Oct 20255611 PMAQI
3rd Oct 20255612 AMAQI
3rd Oct 2025521 AMAQI
3rd Oct 2025522 AMAQI
3rd Oct 2025443 AMAQI
3rd Oct 2025444 AMAQI

22°C18/26°C

3rd Oct 2025415 AMAQI
3rd Oct 2025396 AMAQI
3rd Oct 2025457 AMAQI
3rd Oct 2025528 AMAQI
3rd Oct 2025489 AMAQI
3rd Oct 20254210 AMAQI
3rd Oct 20254911 AMAQI
3rd Oct 20255012 PMAQI
3rd Oct 2025481 PMAQI
3rd Oct 2025372 PMAQI
3rd Oct 2025383 PMAQI
3rd Oct 2025384 PMAQI
3rd Oct 2025405 PMAQI
3rd Oct 2025396 PMAQI
3rd Oct 2025397 PMAQI
3rd Oct 2025418 PMAQI
3rd Oct 2025489 PMAQI
3rd Oct 20255010 PMAQI
3rd Oct 20255211 PMAQI
4th Oct 20255812 AMAQI
4th Oct 2025611 AMAQI
4th Oct 2025612 AMAQI
4th Oct 2025633 AMAQI
4th Oct 2025624 AMAQI

23°C21/26°C

4th Oct 2025675 AMAQI
4th Oct 2025666 AMAQI
4th Oct 2025647 AMAQI
4th Oct 2025658 AMAQI
4th Oct 2025659 AMAQI
4th Oct 20256510 AMAQI
4th Oct 20255911 AMAQI
4th Oct 20255812 PMAQI
4th Oct 2025581 PMAQI
4th Oct 2025562 PMAQI
4th Oct 2025533 PMAQI
4th Oct 2025544 PMAQI
4th Oct 2025565 PMAQI
4th Oct 2025536 PMAQI
4th Oct 2025477 PMAQI
4th Oct 2025428 PMAQI
4th Oct 2025449 PMAQI
4th Oct 20255510 PMAQI
4th Oct 20255511 PMAQI
5th Oct 20255512 AMAQI
5th Oct 2025551 AMAQI
5th Oct 2025572 AMAQI
5th Oct 2025543 AMAQI
5th Oct 2025544 AMAQI

22°C21/23°C

5th Oct 2025535 AMAQI
5th Oct 2025506 AMAQI
5th Oct 2025507 AMAQI
5th Oct 2025528 AMAQI
5th Oct 2025519 AMAQI
5th Oct 20254210 AMAQI
5th Oct 20254111 AMAQI
5th Oct 20254612 PMAQI
5th Oct 2025481 PMAQI
5th Oct 2025482 PMAQI
5th Oct 2025513 PMAQI
5th Oct 2025514 PMAQI
5th Oct 2025325 PMAQI
5th Oct 2025386 PMAQI
5th Oct 2025537 PMAQI
5th Oct 2025498 PMAQI
5th Oct 2025439 PMAQI
5th Oct 20255010 PMAQI
5th Oct 20255111 PMAQI
6th Oct 20255312 AMAQI
6th Oct 2025541 AMAQI
6th Oct 2025542 AMAQI
6th Oct 2025513 AMAQI
6th Oct 2025524 AMAQI

23°C21/27°C

6th Oct 2025505 AMAQI
6th Oct 2025476 AMAQI
6th Oct 2025437 AMAQI
6th Oct 2025548 AMAQI
6th Oct 2025519 AMAQI
6th Oct 20255510 AMAQI
6th Oct 20255411 AMAQI
6th Oct 20255412 PMAQI
6th Oct 2025471 PMAQI
6th Oct 2025472 PMAQI
6th Oct 2025513 PMAQI
6th Oct 2025564 PMAQI
6th Oct 2025545 PMAQI
6th Oct 2025416 PMAQI
6th Oct 2025427 PMAQI
6th Oct 2025418 PMAQI
6th Oct 2025499 PMAQI
6th Oct 20255210 PMAQI
6th Oct 20255311 PMAQI
7th Oct 20254912 AMAQI
7th Oct 2025511 AMAQI
7th Oct 2025412 AMAQI

24°C20/30°C

7th Oct 2025388 PMAQI
7th Oct 2025339 PMAQI
7th Oct 20256210 PMAQI
7th Oct 20257011 PMAQI
8th Oct 20256412 AMAQI
8th Oct 2025661 AMAQI
8th Oct 2025612 AMAQI
8th Oct 2025573 AMAQI
8th Oct 2025584 AMAQI

24°C22/27°C

8th Oct 2025585 AMAQI
8th Oct 2025586 AMAQI
8th Oct 2025627 AMAQI
8th Oct 2025608 AMAQI
8th Oct 2025619 AMAQI
8th Oct 20256110 AMAQI
8th Oct 20256111 AMAQI
8th Oct 20255912 PMAQI
8th Oct 2025601 PMAQI
8th Oct 2025632 PMAQI
8th Oct 2025643 PMAQI
8th Oct 2025634 PMAQI
8th Oct 2025625 PMAQI
8th Oct 2025666 PMAQI
8th Oct 2025757 PMAQI
8th Oct 2025728 PMAQI
8th Oct 2025699 PMAQI
8th Oct 20256810 PMAQI
8th Oct 20256811 PMAQI
9th Oct 20257212 AMAQI
9th Oct 2025741 AMAQI
9th Oct 2025742 AMAQI
9th Oct 2025713 AMAQI
9th Oct 2025734 AMAQI

25°C22/30°C

9th Oct 2025745 AMAQI
9th Oct 2025706 AMAQI
9th Oct 2025617 AMAQI
9th Oct 2025548 AMAQI
9th Oct 2025529 AMAQI
9th Oct 20255610 AMAQI
9th Oct 20255611 AMAQI
9th Oct 20255412 PMAQI
9th Oct 2025531 PMAQI
9th Oct 2025552 PMAQI
9th Oct 2025533 PMAQI
9th Oct 2025544 PMAQI
9th Oct 2025425 PMAQI
9th Oct 2025486 PMAQI
9th Oct 2025537 PMAQI
9th Oct 2025538 PMAQI
9th Oct 2025419 PMAQI
9th Oct 20255410 PMAQI
9th Oct 20255511 PMAQI
10th Oct 20255412 AMAQI
10th Oct 2025541 AMAQI
10th Oct 2025552 AMAQI
10th Oct 2025533 AMAQI
10th Oct 2025514 AMAQI

25°C22/28°C

10th Oct 2025535 AMAQI
10th Oct 2025526 AMAQI
10th Oct 2025477 AMAQI
10th Oct 2025558 AMAQI
10th Oct 2025589 AMAQI
10th Oct 20255810 AMAQI
10th Oct 20255711 AMAQI
10th Oct 20255712 PMAQI
10th Oct 2025541 PMAQI
10th Oct 2025622 PMAQI
10th Oct 2025593 PMAQI
10th Oct 2025554 PMAQI
10th Oct 2025545 PMAQI
10th Oct 2025536 PMAQI
10th Oct 2025587 PMAQI
10th Oct 2025618 PMAQI
10th Oct 2025639 PMAQI
10th Oct 20256410 PMAQI
10th Oct 20256311 PMAQI
11th Oct 20256512 AMAQI
11th Oct 2025651 AMAQI
11th Oct 2025612 AMAQI
11th Oct 2025583 AMAQI
11th Oct 2025584 AMAQI

21°C20/23°C

11th Oct 2025565 AMAQI
11th Oct 2025616 AMAQI
11th Oct 2025587 AMAQI
11th Oct 2025568 AMAQI
11th Oct 2025579 AMAQI
11th Oct 20255810 AMAQI
11th Oct 20256011 AMAQI
11th Oct 20256212 PMAQI
11th Oct 2025681 PMAQI
11th Oct 2025662 PMAQI
11th Oct 2025573 PMAQI
11th Oct 2025554 PMAQI
11th Oct 2025565 PMAQI
11th Oct 2025566 PMAQI
11th Oct 2025577 PMAQI
11th Oct 2025508 PMAQI
11th Oct 2025579 PMAQI
11th Oct 20255610 PMAQI
11th Oct 20255411 PMAQI
12th Oct 20255412 AMAQI
12th Oct 2025591 AMAQI
12th Oct 2025582 AMAQI
12th Oct 2025573 AMAQI
12th Oct 2025564 AMAQI

21°C21/22°C

12th Oct 2025575 AMAQI
12th Oct 2025526 AMAQI
12th Oct 2025437 AMAQI
12th Oct 2025478 AMAQI
12th Oct 2025469 AMAQI
12th Oct 20254510 AMAQI
12th Oct 20253911 AMAQI
12th Oct 20254312 PMAQI
12th Oct 2025421 PMAQI
12th Oct 2025452 PMAQI
12th Oct 2025523 PMAQI
12th Oct 2025484 PMAQI
12th Oct 2025565 PMAQI
12th Oct 2025556 PMAQI
12th Oct 2025537 PMAQI
12th Oct 2025558 PMAQI
12th Oct 2025559 PMAQI
12th Oct 20255510 PMAQI
12th Oct 20256111 PMAQI
13th Oct 20256612 AMAQI
13th Oct 2025601 AMAQI
13th Oct 2025572 AMAQI
13th Oct 2025583 AMAQI
13th Oct 2025614 AMAQI

23°C21/27°C

13th Oct 2025585 AMAQI
13th Oct 2025586 AMAQI
13th Oct 2025577 AMAQI
13th Oct 2025578 AMAQI
13th Oct 2025459 AMAQI
13th Oct 20254910 AMAQI
13th Oct 20254711 AMAQI
13th Oct 20254912 PMAQI
13th Oct 2025501 PMAQI
13th Oct 2025492 PMAQI
13th Oct 2025483 PMAQI
13th Oct 2025464 PMAQI
13th Oct 2025415 PMAQI
13th Oct 2025446 PMAQI
13th Oct 2025517 PMAQI
13th Oct 2025528 PMAQI
13th Oct 2025509 PMAQI
13th Oct 20254910 PMAQI
13th Oct 20254811 PMAQI
14th Oct 20254012 AMAQI
14th Oct 2025441 AMAQI
14th Oct 2025552 AMAQI
14th Oct 2025553 AMAQI
14th Oct 2025534 AMAQI

24°C22/29°C

14th Oct 2025495 AMAQI
14th Oct 2025546 AMAQI
14th Oct 2025537 AMAQI
14th Oct 2025498 AMAQI
14th Oct 2025469 AMAQI
14th Oct 20254710 AMAQI
14th Oct 20254811 AMAQI
14th Oct 20254412 PMAQI
14th Oct 2025511 PMAQI
14th Oct 2025542 PMAQI
14th Oct 2025553 PMAQI
14th Oct 2025524 PMAQI
14th Oct 2025565 PMAQI
14th Oct 2025546 PMAQI
14th Oct 2025577 PMAQI
14th Oct 2025598 PMAQI
14th Oct 2025589 PMAQI
14th Oct 20255810 PMAQI
14th Oct 20255111 PMAQI
15th Oct 20255512 AMAQI
15th Oct 2025561 AMAQI
15th Oct 2025592 AMAQI
15th Oct 2025583 AMAQI
15th Oct 2025614 AMAQI

21°C19/23°C

15th Oct 2025625 AMAQI
15th Oct 2025596 AMAQI
15th Oct 2025547 AMAQI
15th Oct 2025548 AMAQI
15th Oct 2025509 AMAQI
15th Oct 20254410 AMAQI
15th Oct 20254911 AMAQI
15th Oct 20255512 PMAQI
15th Oct 2025561 PMAQI
15th Oct 2025552 PMAQI
15th Oct 2025583 PMAQI
15th Oct 2025534 PMAQI
15th Oct 2025505 PMAQI
15th Oct 2025526 PMAQI
15th Oct 2025567 PMAQI
15th Oct 2025508 PMAQI
15th Oct 2025459 PMAQI
15th Oct 20254810 PMAQI
15th Oct 20255211 PMAQI
16th Oct 20255412 AMAQI
16th Oct 2025511 AMAQI
16th Oct 2025512 AMAQI
16th Oct 2025523 AMAQI
16th Oct 2025514 AMAQI

20°C19/22°C

16th Oct 2025515 AMAQI
5 AM
16th Oct 2025556 AMAQI
16th Oct 2025547 AMAQI
16th Oct 2025538 AMAQI
16th Oct 2025449 AMAQI
16th Oct 20255610 AMAQI
16th Oct 20255711 AMAQI
11 AM
16th Oct 20255512 PMAQI
16th Oct 2025521 PMAQI
16th Oct 2025362 PMAQI
16th Oct 2025403 PMAQI
16th Oct 2025384 PMAQI
16th Oct 2025505 PMAQI
5 PM
16th Oct 2025506 PMAQI
16th Oct 2025467 PMAQI
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 1 PM

44AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
2 PM - 5 PM

42AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 1 PM (Avg. 44), while the lowest AQI was between 2 PM to 5 PM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 4 AM

47AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
6 PM - 9 PM

43AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 47), while the lowest AQI was between 6 PM to 9 PM (Avg. 43).

2025 Days Vs Air Quality

Ohiracho, Okazaki, Aichi, Japan

2025

88%

252

13%

36

Total number of days with different AQI categories in last 289 days in 2025 (76 days remaining)

Good
252 Days
Moderate
36 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 88%

Health Risk Level:

Low

In 2025, 88% of 289 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

Ohiracho, Okazaki, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
26AQI
2nd January 2025
28AQI
3rd January 2025
28AQI
4th January 2025
26AQI
5th January 2025
25AQI
6th January 2025
24AQI
7th January 2025
26AQI
8th January 2025
24AQI
9th January 2025
25AQI
10th January 2025
22AQI
11th January 2025
23AQI
12th January 2025
22AQI
13th January 2025
25AQI
14th January 2025
27AQI
15th January 2025
28AQI
16th January 2025
21AQI
17th January 2025
26AQI
18th January 2025
23AQI
19th January 2025
25AQI
20th January 2025
24AQI
21st January 2025
30AQI
22nd January 2025
28AQI
23rd January 2025
35AQI
24th January 2025
34AQI
25th January 2025
34AQI
26th January 2025
30AQI
27th January 2025
22AQI
28th January 2025
27AQI
29th January 2025
25AQI
30th January 2025
27AQI
31st January 2025
29AQI
1st February 2025
34AQI
2nd February 2025
25AQI
3rd February 2025
29AQI
4th February 2025
29AQI
5th February 2025
29AQI
6th February 2025
28AQI
7th February 2025
29AQI
8th February 2025
26AQI
9th February 2025
27AQI
10th February 2025
27AQI
11th February 2025
29AQI
12th February 2025
24AQI
13th February 2025
31AQI
14th February 2025
25AQI
15th February 2025
29AQI
16th February 2025
28AQI
17th February 2025
31AQI
18th February 2025
27AQI
19th February 2025
28AQI
20th February 2025
26AQI
21st February 2025
26AQI
22nd February 2025
28AQI
23rd February 2025
29AQI
24th February 2025
30AQI
25th February 2025
29AQI
26th February 2025
35AQI
27th February 2025
36AQI
28th February 2025
35AQI
1st March 2025
37AQI
2nd March 2025
38AQI
3rd March 2025
29AQI
4th March 2025
23AQI
5th March 2025
21AQI
6th March 2025
29AQI
7th March 2025
29AQI
8th March 2025
29AQI
9th March 2025
33AQI
10th March 2025
30AQI
11th March 2025
25AQI
12th March 2025
25AQI
13th March 2025
33AQI
14th March 2025
23AQI
15th March 2025
22AQI
16th March 2025
18AQI
17th March 2025
16AQI
18th March 2025
16AQI
19th March 2025
15AQI
20th March 2025
20AQI
21st March 2025
30AQI
22nd March 2025
30AQI
23rd March 2025
36AQI
24th March 2025
35AQI
25th March 2025
51AQI
26th March 2025
74AQI
27th March 2025
62AQI
28th March 2025
41AQI
29th March 2025
33AQI
30th March 2025
34AQI
31st March 2025
34AQI
1st April 2025
24AQI
2nd April 2025
25AQI
3rd April 2025
19AQI
4th April 2025
18AQI
5th April 2025
19AQI
6th April 2025
15AQI
7th April 2025
17AQI
8th April 2025
18AQI
9th April 2025
16AQI
10th April 2025
22AQI
11th April 2025
22AQI
12th April 2025
23AQI
13th April 2025
17AQI
14th April 2025
22AQI
15th April 2025
17AQI
16th April 2025
19AQI
17th April 2025
22AQI
18th April 2025
26AQI
19th April 2025
28AQI
20th April 2025
25AQI
21st April 2025
22AQI
22nd April 2025
19AQI
23rd April 2025
15AQI
24th April 2025
13AQI
25th April 2025
21AQI
26th April 2025
21AQI
27th April 2025
21AQI
28th April 2025
21AQI
29th April 2025
20AQI
30th April 2025
23AQI
1st May 2025
19AQI
2nd May 2025
17AQI
3rd May 2025
18AQI
4th May 2025
18AQI
5th May 2025
17AQI
6th May 2025
16AQI
7th May 2025
16AQI
8th May 2025
16AQI
9th May 2025
16AQI
10th May 2025
14AQI
11th May 2025
15AQI
12th May 2025
17AQI
13th May 2025
20AQI
14th May 2025
22AQI
15th May 2025
22AQI
16th May 2025
21AQI
17th May 2025
21AQI
18th May 2025
25AQI
19th May 2025
25AQI
20th May 2025
34AQI
21st May 2025
31AQI
22nd May 2025
26AQI
23rd May 2025
23AQI
24th May 2025
22AQI
25th May 2025
16AQI
26th May 2025
18AQI
27th May 2025
17AQI
28th May 2025
17AQI
29th May 2025
18AQI
30th May 2025
16AQI
31st May 2025
16AQI
1st June 2025
14AQI
2nd June 2025
18AQI
3rd June 2025
16AQI
4th June 2025
18AQI
5th June 2025
19AQI
6th June 2025
21AQI
7th June 2025
23AQI
8th June 2025
28AQI
9th June 2025
21AQI
10th June 2025
18AQI
11th June 2025
17AQI
12th June 2025
19AQI
13th June 2025
19AQI
14th June 2025
17AQI
15th June 2025
16AQI
16th June 2025
17AQI
17th June 2025
21AQI
18th June 2025
21AQI
19th June 2025
24AQI
20th June 2025
25AQI
21st June 2025
23AQI
22nd June 2025
18AQI
23rd June 2025
16AQI
24th June 2025
17AQI
25th June 2025
16AQI
26th June 2025
16AQI
27th June 2025
19AQI
28th June 2025
17AQI
29th June 2025
18AQI
30th June 2025
32AQI
1st July 2025
38AQI
2nd July 2025
46AQI
3rd July 2025
54AQI
4th July 2025
57AQI
5th July 2025
67AQI
6th July 2025
59AQI
7th July 2025
68AQI
8th July 2025
72AQI
9th July 2025
78AQI
10th July 2025
62AQI
11th July 2025
57AQI
12th July 2025
56AQI
13th July 2025
54AQI
14th July 2025
48AQI
15th July 2025
50AQI
16th July 2025
50AQI
17th July 2025
46AQI
18th July 2025
44AQI
19th July 2025
37AQI
20th July 2025
33AQI
21st July 2025
31AQI
22nd July 2025
31AQI
23rd July 2025
33AQI
24th July 2025
30AQI
25th July 2025
25AQI
26th July 2025
24AQI
27th July 2025
23AQI
28th July 2025
29AQI
29th July 2025
36AQI
30th July 2025
36AQI
31st July 2025
36AQI
1st August 2025
43AQI
2nd August 2025
44AQI
3rd August 2025
47AQI
4th August 2025
66AQI
5th August 2025
52AQI
6th August 2025
53AQI
7th August 2025
45AQI
8th August 2025
43AQI
9th August 2025
49AQI
10th August 2025
41AQI
11th August 2025
37AQI
12th August 2025
35AQI
13th August 2025
36AQI
14th August 2025
41AQI
15th August 2025
41AQI
16th August 2025
42AQI
17th August 2025
41AQI
18th August 2025
46AQI
19th August 2025
48AQI
20th August 2025
47AQI
21st August 2025
49AQI
22nd August 2025
46AQI
23rd August 2025
50AQI
24th August 2025
58AQI
25th August 2025
57AQI
26th August 2025
55AQI
27th August 2025
53AQI
28th August 2025
50AQI
29th August 2025
55AQI
30th August 2025
56AQI
31st August 2025
54AQI
1st September 2025
44AQI
2nd September 2025
36AQI
3rd September 2025
40AQI
4th September 2025
25AQI
5th September 2025
25AQI
6th September 2025
29AQI
7th September 2025
32AQI
8th September 2025
37AQI
9th September 2025
39AQI
10th September 2025
36AQI
11th September 2025
30AQI
12th September 2025
31AQI
13th September 2025
29AQI
14th September 2025
38AQI
15th September 2025
35AQI
16th September 2025
46AQI
17th September 2025
51AQI
18th September 2025
43AQI
19th September 2025
36AQI
20th September 2025
39AQI
21st September 2025
29AQI
22nd September 2025
33AQI
23rd September 2025
35AQI
24th September 2025
34AQI
25th September 2025
42AQI
26th September 2025
36AQI
27th September 2025
35AQI
28th September 2025
36AQI
29th September 2025
30AQI
30th September 2025
30AQI
1st October 2025
36AQI
2nd October 2025
53AQI
3rd October 2025
47AQI
4th October 2025
57AQI
5th October 2025
51AQI
6th October 2025
49AQI
7th October 2025
51AQI
8th October 2025
64AQI
9th October 2025
59AQI
10th October 2025
56AQI
11th October 2025
59AQI
12th October 2025
53AQI
13th October 2025
54AQI
14th October 2025
50AQI
15th October 2025
54AQI
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

26AQI

29AQI

31AQI

20AQI

20AQI

19AQI

45AQI

48AQI

35AQI

53AQI

No. of days

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

202532AQI

31
28
28
3
30
31
30
20
11
21
10
29
1
4
11
252
36

Highest AQI recorded in

October

53AQI

Lowest AQI recorded in

June

19AQI

202436AQI

26
3
27
2
24
7
17
13
29
2
28
2
31
30
1
27
3
27
4
26
4
31
323
41

Highest AQI recorded in

April

50AQI

Lowest AQI recorded in

December

24AQI

202342AQI

26
5
23
5
21
10
12
18
22
9
21
9
19
12
29
2
28
2
25
3
23
6
23
8
272
89

Highest AQI recorded in

April

54AQI

Lowest AQI recorded in

August

31AQI

202242AQI

29
2
18
4
17
14
10
6
17
14
21
9
18
4
1
19
9
23
6
25
5
31
229
73

Highest AQI recorded in

May

51AQI

Lowest AQI recorded in

December

35AQI

202142AQI

24
7
18
10
19
10
15
6
21
10
21
9
24
7
26
5
21
9
25
4
20
10
27
4
261
91

Highest AQI recorded in

February

47AQI

Lowest AQI recorded in

December

37AQI

202043AQI

8
5
14
7
13
5
19
11
28
3
16
15
9
2
22
7
17
13
25
6
171
74

Highest AQI recorded in

August

51AQI

Lowest AQI recorded in

September

31AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2020(Avg.)
43AQI
Least Polluted Year Recorded
2025(Avg.)
32AQI

Ohiracho's annual 2025 AQI (32) shows an average percentage change of -22.4% (improved AQI) compared to previous years: 2020 (43), 2021 (42), 2022 (42), 2023 (42), 2024 (36).