Oiwacho, Toyohashi, 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
Oiwacho, Toyohashi, Aichi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
9th Aug 2024
56AQILowest AQI recorded on
25th Aug 2023
9AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 39 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Oiwacho, Toyohashi, Aichi, Japan
AQI
Day
Night
.
4 AM2nd Aug 2025
7 PM
3 AM3rd Aug 2025
Day time
Avg. Highest Time
1PM2nd Aug
60AQI
Avg. Lowest Time
5AM2nd Aug
36AQI
Night time
Avg. Highest Time
7PM2nd Aug
55AQI
Avg. Lowest Time
4AM2nd Aug
36AQI
In the last 24 hours,
Oiwacho's AQI reached its highest point of 60 at 1 PM during the Day, while the lowest point, 36, was recorded at 5 AM during the Day between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Oiwacho, Toyohashi, Aichi, Japan
JulAug
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 - 03rd03rd
Day
Night
4th Jul 2025504 AMAQI
4th Jul 2025525 AMAQI
4th Jul 2025526 AMAQI
4th Jul 2025517 AMAQI
4th Jul 2025528 AMAQI
4th Jul 2025399 AMAQI
4th Jul 20253810 AMAQI
4th Jul 20254411 AMAQI
4th Jul 20255112 PMAQI
4th Jul 2025521 PMAQI
4th Jul 2025532 PMAQI
4th Jul 2025563 PMAQI
4th Jul 2025544 PMAQI
4th Jul 2025545 PMAQI
4th Jul 2025546 PMAQI
4th Jul 2025547 PMAQI
4th Jul 2025518 PMAQI
4th Jul 2025499 PMAQI
4th Jul 20254810 PMAQI
4th Jul 20254711 PMAQI
5th Jul 20254912 AMAQI
5th Jul 2025501 AMAQI
5th Jul 2025492 AMAQI
5th Jul 2025483 AMAQI
27°C25/30°C
5th Jul 2025484 AMAQI
5th Jul 2025505 AMAQI
5th Jul 2025506 AMAQI
5th Jul 2025517 AMAQI
5th Jul 2025508 AMAQI
5th Jul 2025669 AMAQI
5th Jul 20257610 AMAQI
5th Jul 20259411 AMAQI
5th Jul 202512112 PMAQI
5th Jul 20251061 PMAQI
5th Jul 2025992 PMAQI
5th Jul 20251043 PMAQI
5th Jul 20251024 PMAQI
5th Jul 2025945 PMAQI
5th Jul 2025926 PMAQI
5th Jul 20251087 PMAQI
5th Jul 20251008 PMAQI
5th Jul 2025639 PMAQI
5th Jul 20256310 PMAQI
5th Jul 20256211 PMAQI
6th Jul 20255812 AMAQI
6th Jul 2025521 AMAQI
6th Jul 2025492 AMAQI
6th Jul 2025503 AMAQI
29°C25/33°C
6th Jul 2025514 AMAQI
6th Jul 2025545 AMAQI
6th Jul 2025546 AMAQI
6th Jul 2025547 AMAQI
6th Jul 2025548 AMAQI
6th Jul 2025559 AMAQI
6th Jul 20255610 AMAQI
6th Jul 20256011 AMAQI
6th Jul 20256212 PMAQI
6th Jul 2025611 PMAQI
6th Jul 2025622 PMAQI
6th Jul 2025643 PMAQI
6th Jul 2025704 PMAQI
6th Jul 2025735 PMAQI
6th Jul 2025746 PMAQI
6th Jul 2025827 PMAQI
6th Jul 2025808 PMAQI
6th Jul 2025649 PMAQI
6th Jul 20256510 PMAQI
6th Jul 20256611 PMAQI
7th Jul 20256612 AMAQI
7th Jul 2025591 AMAQI
7th Jul 2025562 AMAQI
7th Jul 2025563 AMAQI
30°C26/34°C
7th Jul 2025564 AMAQI
7th Jul 2025565 AMAQI
7th Jul 2025566 AMAQI
7th Jul 2025567 AMAQI
7th Jul 2025568 AMAQI
7th Jul 2025939 AMAQI
7th Jul 202510810 AMAQI
7th Jul 202510011 AMAQI
7th Jul 202510012 PMAQI
7th Jul 2025871 PMAQI
7th Jul 2025882 PMAQI
7th Jul 2025863 PMAQI
7th Jul 2025864 PMAQI
7th Jul 2025875 PMAQI
7th Jul 2025906 PMAQI
7th Jul 2025917 PMAQI
7th Jul 2025888 PMAQI
7th Jul 2025749 PMAQI
7th Jul 20257410 PMAQI
7th Jul 20257211 PMAQI
8th Jul 20257112 AMAQI
8th Jul 2025651 AMAQI
8th Jul 2025602 AMAQI
8th Jul 2025613 AMAQI
29°C27/32°C
8th Jul 2025624 AMAQI
8th Jul 2025665 AMAQI
8th Jul 2025656 AMAQI
8th Jul 2025667 AMAQI
8th Jul 2025658 AMAQI
8th Jul 2025879 AMAQI
8th Jul 202510210 AMAQI
8th Jul 202510211 AMAQI
8th Jul 202510612 PMAQI
8th Jul 20251021 PMAQI
8th Jul 20251042 PMAQI
8th Jul 20251013 PMAQI
8th Jul 20251024 PMAQI
8th Jul 2025935 PMAQI
8th Jul 2025966 PMAQI
8th Jul 2025947 PMAQI
8th Jul 2025918 PMAQI
8th Jul 2025779 PMAQI
8th Jul 20257710 PMAQI
8th Jul 20257811 PMAQI
9th Jul 20257712 AMAQI
9th Jul 2025701 AMAQI
9th Jul 2025652 AMAQI
9th Jul 2025653 AMAQI
29°C27/31°C
9th Jul 2025684 AMAQI
9th Jul 2025725 AMAQI
9th Jul 2025716 AMAQI
9th Jul 2025727 AMAQI
9th Jul 2025728 AMAQI
9th Jul 20251029 AMAQI
9th Jul 202511910 AMAQI
9th Jul 202511411 AMAQI
9th Jul 202510112 PMAQI
9th Jul 2025931 PMAQI
9th Jul 2025912 PMAQI
9th Jul 2025883 PMAQI
9th Jul 2025914 PMAQI
9th Jul 2025895 PMAQI
9th Jul 2025826 PMAQI
9th Jul 2025747 PMAQI
9th Jul 2025668 PMAQI
9th Jul 2025669 PMAQI
9th Jul 20256610 PMAQI
9th Jul 20256611 PMAQI
10th Jul 20256612 AMAQI
10th Jul 2025691 AMAQI
10th Jul 2025712 AMAQI
10th Jul 2025723 AMAQI
28°C26/31°C
10th Jul 2025734 AMAQI
10th Jul 2025765 AMAQI
10th Jul 2025766 AMAQI
10th Jul 2025767 AMAQI
10th Jul 2025758 AMAQI
10th Jul 2025579 AMAQI
10th Jul 20254910 AMAQI
10th Jul 20254211 AMAQI
10th Jul 20254412 PMAQI
10th Jul 2025531 PMAQI
10th Jul 2025542 PMAQI
10th Jul 2025523 PMAQI
10th Jul 2025494 PMAQI
10th Jul 2025425 PMAQI
10th Jul 2025406 PMAQI
10th Jul 2025407 PMAQI
10th Jul 2025488 PMAQI
10th Jul 2025609 PMAQI
10th Jul 20256010 PMAQI
10th Jul 20256011 PMAQI
11th Jul 20256012 AMAQI
11th Jul 2025641 AMAQI
11th Jul 2025702 AMAQI
11th Jul 2025703 AMAQI
29°C26/32°C
11th Jul 2025694 AMAQI
11th Jul 2025655 AMAQI
11th Jul 2025666 AMAQI
11th Jul 2025667 AMAQI
11th Jul 2025668 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251710 AMAQI
11th Jul 20252211 AMAQI
11th Jul 20253012 PMAQI
11th Jul 2025421 PMAQI
11th Jul 2025442 PMAQI
11th Jul 2025503 PMAQI
11th Jul 2025484 PMAQI
11th Jul 2025475 PMAQI
11th Jul 2025516 PMAQI
11th Jul 2025497 PMAQI
11th Jul 2025528 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20255810 PMAQI
11th Jul 20255811 PMAQI
12th Jul 20255912 AMAQI
12th Jul 2025621 AMAQI
12th Jul 2025652 AMAQI
12th Jul 2025653 AMAQI
28°C26/30°C
12th Jul 2025634 AMAQI
12th Jul 2025615 AMAQI
12th Jul 2025616 AMAQI
12th Jul 2025617 AMAQI
12th Jul 2025618 AMAQI
12th Jul 2025419 AMAQI
12th Jul 20253810 AMAQI
12th Jul 20254011 AMAQI
12th Jul 20254312 PMAQI
12th Jul 2025481 PMAQI
12th Jul 2025482 PMAQI
12th Jul 2025473 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025435 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025498 PMAQI
12th Jul 2025579 PMAQI
12th Jul 20255610 PMAQI
12th Jul 20255711 PMAQI
13th Jul 20255712 AMAQI
13th Jul 2025601 AMAQI
13th Jul 2025612 AMAQI
13th Jul 2025613 AMAQI
27°C25/29°C
13th Jul 2025604 AMAQI
13th Jul 2025585 AMAQI
13th Jul 2025586 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025588 AMAQI
13th Jul 2025489 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253712 PMAQI
13th Jul 2025451 PMAQI
13th Jul 2025432 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025434 PMAQI
13th Jul 2025435 PMAQI
13th Jul 2025446 PMAQI
13th Jul 2025447 PMAQI
13th Jul 2025508 PMAQI
13th Jul 2025559 PMAQI
13th Jul 20255510 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025571 AMAQI
14th Jul 2025592 AMAQI
14th Jul 2025583 AMAQI
27°C24/30°C
14th Jul 2025584 AMAQI
14th Jul 2025565 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025568 AMAQI
14th Jul 2025299 AMAQI
14th Jul 20252210 AMAQI
14th Jul 20252011 AMAQI
14th Jul 20252512 PMAQI
14th Jul 2025311 PMAQI
14th Jul 2025282 PMAQI
14th Jul 2025283 PMAQI
14th Jul 2025284 PMAQI
14th Jul 2025305 PMAQI
14th Jul 2025336 PMAQI
14th Jul 2025307 PMAQI
14th Jul 2025348 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255212 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025562 AMAQI
15th Jul 2025563 AMAQI
27°C25/30°C
15th Jul 2025564 AMAQI
15th Jul 2025545 AMAQI
15th Jul 2025546 AMAQI
15th Jul 2025547 AMAQI
15th Jul 2025548 AMAQI
15th Jul 2025299 AMAQI
15th Jul 20251910 AMAQI
15th Jul 20252311 AMAQI
15th Jul 20253212 PMAQI
15th Jul 2025391 PMAQI
15th Jul 2025382 PMAQI
15th Jul 2025443 PMAQI
15th Jul 2025484 PMAQI
15th Jul 2025455 PMAQI
15th Jul 2025426 PMAQI
15th Jul 2025407 PMAQI
15th Jul 2025488 PMAQI
15th Jul 2025529 PMAQI
15th Jul 20255210 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255212 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025543 AMAQI
27°C25/29°C
16th Jul 2025544 AMAQI
16th Jul 2025535 AMAQI
16th Jul 2025526 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025549 AMAQI
16th Jul 20254910 AMAQI
16th Jul 20254511 AMAQI
16th Jul 20254612 PMAQI
16th Jul 2025511 PMAQI
16th Jul 2025482 PMAQI
16th Jul 2025483 PMAQI
16th Jul 2025464 PMAQI
16th Jul 2025395 PMAQI
16th Jul 2025396 PMAQI
16th Jul 2025407 PMAQI
16th Jul 2025418 PMAQI
16th Jul 2025469 PMAQI
16th Jul 20254410 PMAQI
16th Jul 20254611 PMAQI
17th Jul 20254812 AMAQI
17th Jul 2025521 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025533 AMAQI
26°C24/29°C
17th Jul 2025524 AMAQI
17th Jul 2025525 AMAQI
17th Jul 2025526 AMAQI
17th Jul 2025527 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025399 AMAQI
17th Jul 20253410 AMAQI
17th Jul 20253111 AMAQI
17th Jul 20253412 PMAQI
17th Jul 2025381 PMAQI
17th Jul 2025402 PMAQI
17th Jul 2025413 PMAQI
17th Jul 2025444 PMAQI
17th Jul 2025435 PMAQI
17th Jul 2025436 PMAQI
17th Jul 2025427 PMAQI
17th Jul 2025428 PMAQI
17th Jul 2025489 PMAQI
17th Jul 20254710 PMAQI
17th Jul 20254411 PMAQI
18th Jul 20254412 AMAQI
18th Jul 2025491 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025523 AMAQI
25°C24/27°C
18th Jul 2025514 AMAQI
18th Jul 2025495 AMAQI
18th Jul 2025496 AMAQI
18th Jul 2025487 AMAQI
18th Jul 2025488 AMAQI
18th Jul 2025299 AMAQI
18th Jul 20252310 AMAQI
18th Jul 20252211 AMAQI
18th Jul 20252412 PMAQI
18th Jul 2025311 PMAQI
18th Jul 2025342 PMAQI
18th Jul 2025343 PMAQI
18th Jul 2025364 PMAQI
18th Jul 2025355 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025367 PMAQI
18th Jul 2025398 PMAQI
18th Jul 2025429 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254211 PMAQI
19th Jul 20254412 AMAQI
19th Jul 2025461 AMAQI
19th Jul 2025482 AMAQI
19th Jul 2025493 AMAQI
26°C23/29°C
19th Jul 2025484 AMAQI
19th Jul 2025465 AMAQI
19th Jul 2025466 AMAQI
19th Jul 2025467 AMAQI
19th Jul 2025468 AMAQI
19th Jul 2025249 AMAQI
19th Jul 20251910 AMAQI
19th Jul 20252211 AMAQI
19th Jul 20252512 PMAQI
19th Jul 2025291 PMAQI
19th Jul 2025322 PMAQI
19th Jul 2025293 PMAQI
19th Jul 2025294 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025296 PMAQI
19th Jul 2025307 PMAQI
19th Jul 2025328 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253910 PMAQI
19th Jul 20253911 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025441 AMAQI
20th Jul 2025462 AMAQI
20th Jul 2025463 AMAQI
26°C23/29°C
20th Jul 2025454 AMAQI
20th Jul 2025435 AMAQI
20th Jul 2025446 AMAQI
20th Jul 2025437 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025319 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252412 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025222 PMAQI
20th Jul 2025233 PMAQI
20th Jul 2025284 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025256 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025278 PMAQI
20th Jul 2025359 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025391 AMAQI
21st Jul 2025442 AMAQI
21st Jul 2025433 AMAQI
27°C24/30°C
21st Jul 2025424 AMAQI
21st Jul 2025395 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025239 AMAQI
21st Jul 20252510 AMAQI
21st Jul 20252511 AMAQI
21st Jul 20252312 PMAQI
21st Jul 2025231 PMAQI
21st Jul 2025232 PMAQI
21st Jul 2025233 PMAQI
21st Jul 2025304 PMAQI
21st Jul 2025325 PMAQI
21st Jul 2025216 PMAQI
21st Jul 2025207 PMAQI
21st Jul 2025268 PMAQI
21st Jul 2025329 PMAQI
21st Jul 20253110 PMAQI
21st Jul 20253011 PMAQI
22nd Jul 20253012 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025403 AMAQI
28°C25/31°C
22nd Jul 2025384 AMAQI
22nd Jul 2025365 AMAQI
22nd Jul 2025366 AMAQI
22nd Jul 2025367 AMAQI
22nd Jul 2025368 AMAQI
22nd Jul 2025229 AMAQI
22nd Jul 20252510 AMAQI
22nd Jul 20252311 AMAQI
22nd Jul 20252412 PMAQI
22nd Jul 2025261 PMAQI
22nd Jul 2025252 PMAQI
22nd Jul 2025283 PMAQI
22nd Jul 2025394 PMAQI
22nd Jul 2025285 PMAQI
22nd Jul 2025366 PMAQI
22nd Jul 2025367 PMAQI
22nd Jul 2025308 PMAQI
22nd Jul 2025299 PMAQI
22nd Jul 20252810 PMAQI
22nd Jul 20252911 PMAQI
23rd Jul 20252912 AMAQI
23rd Jul 2025321 AMAQI
23rd Jul 2025362 AMAQI
23rd Jul 2025363 AMAQI
28°C26/31°C
23rd Jul 2025364 AMAQI
23rd Jul 2025345 AMAQI
23rd Jul 2025346 AMAQI
23rd Jul 2025347 AMAQI
23rd Jul 2025348 AMAQI
23rd Jul 2025239 AMAQI
23rd Jul 20251910 AMAQI
23rd Jul 20252011 AMAQI
23rd Jul 20252612 PMAQI
23rd Jul 2025271 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025233 PMAQI
23rd Jul 2025214 PMAQI
23rd Jul 2025255 PMAQI
23rd Jul 2025246 PMAQI
23rd Jul 2025227 PMAQI
23rd Jul 2025268 PMAQI
23rd Jul 2025289 PMAQI
23rd Jul 20252510 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252712 AMAQI
24th Jul 2025301 AMAQI
24th Jul 2025342 AMAQI
24th Jul 2025333 AMAQI
28°C26/31°C
24th Jul 2025334 AMAQI
24th Jul 2025335 AMAQI
24th Jul 2025326 AMAQI
24th Jul 2025327 AMAQI
24th Jul 2025328 AMAQI
24th Jul 2025239 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20252211 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025341 PMAQI
24th Jul 2025432 PMAQI
24th Jul 2025403 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025245 PMAQI
24th Jul 2025186 PMAQI
24th Jul 2025207 PMAQI
24th Jul 2025218 PMAQI
24th Jul 2025259 PMAQI
24th Jul 20252310 PMAQI
24th Jul 20252611 PMAQI
25th Jul 20252512 AMAQI
25th Jul 2025281 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025333 AMAQI
28°C25/31°C
25th Jul 2025324 AMAQI
25th Jul 2025325 AMAQI
25th Jul 2025326 AMAQI
25th Jul 2025327 AMAQI
25th Jul 2025328 AMAQI
25th Jul 2025269 AMAQI
25th Jul 20252410 AMAQI
25th Jul 20252411 AMAQI
25th Jul 20252212 PMAQI
25th Jul 2025181 PMAQI
25th Jul 2025172 PMAQI
25th Jul 2025183 PMAQI
25th Jul 2025204 PMAQI
25th Jul 2025165 PMAQI
25th Jul 2025226 PMAQI
25th Jul 2025227 PMAQI
25th Jul 2025228 PMAQI
25th Jul 2025259 PMAQI
25th Jul 20252510 PMAQI
25th Jul 20252411 PMAQI
26th Jul 20252612 AMAQI
26th Jul 2025291 AMAQI
26th Jul 2025322 AMAQI
26th Jul 2025323 AMAQI
29°C26/31°C
26th Jul 2025314 AMAQI
26th Jul 2025285 AMAQI
26th Jul 2025286 AMAQI
26th Jul 2025297 AMAQI
26th Jul 2025288 AMAQI
26th Jul 2025199 AMAQI
26th Jul 20252410 AMAQI
26th Jul 20252211 AMAQI
26th Jul 20252012 PMAQI
26th Jul 2025241 PMAQI
26th Jul 2025222 PMAQI
26th Jul 2025243 PMAQI
26th Jul 2025264 PMAQI
26th Jul 2025305 PMAQI
26th Jul 2025246 PMAQI
26th Jul 2025217 PMAQI
26th Jul 2025228 PMAQI
26th Jul 2025259 PMAQI
26th Jul 20252610 PMAQI
26th Jul 20252611 PMAQI
27th Jul 20252712 AMAQI
27th Jul 2025291 AMAQI
27th Jul 2025292 AMAQI
27th Jul 2025303 AMAQI
28°C26/31°C
27th Jul 2025294 AMAQI
27th Jul 2025275 AMAQI
27th Jul 2025286 AMAQI
27th Jul 2025277 AMAQI
27th Jul 2025278 AMAQI
27th Jul 2025219 AMAQI
27th Jul 20251810 AMAQI
27th Jul 20252111 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025221 PMAQI
27th Jul 2025242 PMAQI
27th Jul 2025273 PMAQI
27th Jul 2025234 PMAQI
27th Jul 2025255 PMAQI
27th Jul 2025226 PMAQI
27th Jul 2025227 PMAQI
27th Jul 2025208 PMAQI
27th Jul 2025239 PMAQI
27th Jul 20252310 PMAQI
27th Jul 20252411 PMAQI
28th Jul 20252412 AMAQI
28th Jul 2025261 AMAQI
28th Jul 2025282 AMAQI
28th Jul 2025283 AMAQI
28°C26/31°C
28th Jul 2025284 AMAQI
28th Jul 2025265 AMAQI
28th Jul 2025276 AMAQI
28th Jul 2025267 AMAQI
28th Jul 2025268 AMAQI
28th Jul 2025199 AMAQI
28th Jul 20252210 AMAQI
28th Jul 20252211 AMAQI
28th Jul 20252412 PMAQI
28th Jul 2025291 PMAQI
28th Jul 2025332 PMAQI
28th Jul 2025363 PMAQI
28th Jul 2025354 PMAQI
28th Jul 2025285 PMAQI
28th Jul 2025216 PMAQI
28th Jul 2025237 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20252810 PMAQI
28th Jul 20252711 PMAQI
29th Jul 20252712 AMAQI
29th Jul 2025251 AMAQI
29th Jul 2025272 AMAQI
29th Jul 2025263 AMAQI
29°C26/31°C
29th Jul 2025274 AMAQI
29th Jul 2025275 AMAQI
29th Jul 2025276 AMAQI
29th Jul 2025267 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025239 AMAQI
29th Jul 20253210 AMAQI
29th Jul 20254611 AMAQI
29th Jul 20255212 PMAQI
29th Jul 2025511 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025483 PMAQI
29th Jul 2025484 PMAQI
29th Jul 2025455 PMAQI
29th Jul 2025366 PMAQI
29th Jul 2025287 PMAQI
29th Jul 2025288 PMAQI
29th Jul 2025299 PMAQI
29th Jul 20252610 PMAQI
29th Jul 20252711 PMAQI
30th Jul 20252612 AMAQI
30th Jul 2025261 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025273 AMAQI
29°C26/32°C
30th Jul 2025284 AMAQI
30th Jul 2025315 AMAQI
30th Jul 2025316 AMAQI
30th Jul 2025317 AMAQI
30th Jul 2025318 AMAQI
30th Jul 2025279 AMAQI
30th Jul 20252910 AMAQI
30th Jul 20254111 AMAQI
30th Jul 20254512 PMAQI
30th Jul 2025391 PMAQI
30th Jul 2025372 PMAQI
30th Jul 2025463 PMAQI
30th Jul 2025414 PMAQI
30th Jul 2025425 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025467 PMAQI
30th Jul 2025398 PMAQI
30th Jul 2025369 PMAQI
30th Jul 20253710 PMAQI
30th Jul 20253711 PMAQI
31st Jul 20253712 AMAQI
31st Jul 2025341 AMAQI
31st Jul 2025282 AMAQI
31st Jul 2025283 AMAQI
29°C26/32°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 20254411 AMAQI
31st Jul 20255012 PMAQI
31st Jul 2025531 PMAQI
31st Jul 2025512 PMAQI
31st Jul 2025473 PMAQI
31st Jul 2025394 PMAQI
31st Jul 2025425 PMAQI
31st Jul 2025466 PMAQI
31st Jul 2025437 PMAQI
31st Jul 2025388 PMAQI
31st Jul 2025309 PMAQI
31st Jul 20253310 PMAQI
31st Jul 20252711 PMAQI
1st Aug 20253112 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025282 AMAQI
1st Aug 2025303 AMAQI
29°C27/32°C
1st Aug 2025314 AMAQI
1st Aug 2025315 AMAQI
1st Aug 2025326 AMAQI
1st Aug 2025357 AMAQI
1st Aug 2025328 AMAQI
1st Aug 2025489 AMAQI
1st Aug 20254710 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20255312 PMAQI
1st Aug 2025551 PMAQI
1st Aug 2025622 PMAQI
1st Aug 2025573 PMAQI
1st Aug 2025574 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025646 PMAQI
1st Aug 2025617 PMAQI
1st Aug 2025528 PMAQI
1st Aug 2025439 PMAQI
1st Aug 20254110 PMAQI
1st Aug 20254211 PMAQI
2nd Aug 20253312 AMAQI
2nd Aug 2025331 AMAQI
2nd Aug 2025332 AMAQI
2nd Aug 2025323 AMAQI
30°C26/35°C
2nd Aug 2025364 AMAQI
2nd Aug 2025365 AMAQI
2nd Aug 2025386 AMAQI
2nd Aug 2025377 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025529 AMAQI
2nd Aug 20255310 AMAQI
2nd Aug 20255111 AMAQI
2nd Aug 20254912 PMAQI
2nd Aug 2025601 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025573 PMAQI
2nd Aug 2025604 PMAQI
2nd Aug 2025585 PMAQI
2nd Aug 2025536 PMAQI
2nd Aug 2025557 PMAQI
2nd Aug 2025468 PMAQI
2nd Aug 2025429 PMAQI
2nd Aug 20254210 PMAQI
2nd Aug 20254411 PMAQI
3rd Aug 20254212 AMAQI
3rd Aug 2025371 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025373 AMAQI
30°C27/35°C
3rd Aug 2025404 AMAQI
4 AM3rd Aug 2025415 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025408 AMAQI
3rd Aug 2025519 AMAQI
3rd Aug 20255610 AMAQI
3rd Aug 20256111 AMAQI
11 AM3rd Aug 20256112 PMAQI
3rd Aug 2025581 PMAQI
3rd Aug 2025602 PMAQI
3rd Aug 2025573 PMAQI
3rd Aug 2025574 PMAQI
3rd Aug 2025565 PMAQI
3rd Aug 2025556 PMAQI
3rd Aug 2025507 PMAQI
7 PM3rd Aug 2025488 PMAQI
3rd Aug 2025449 PMAQI
3rd Aug 20254810 PMAQI
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 7 PM
46AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
9 AM - 11 AM
41AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 7 PM (Avg. 46), while the lowest AQI was between 9 AM to 11 AM (Avg. 41).
Night time
Avg. Highest Time
12 AM - 11 PM
45AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
45AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 45), while the lowest AQI was between 12 AM to 11 PM (Avg. 45).
2025 Days Vs Air Quality
Oiwacho, Toyohashi, Aichi, Japan
2025
94%
201
6%
13
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
201 DaysModerate
13 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 215 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
Oiwacho, Toyohashi, 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
29AQI
29AQI
2nd January 2025
30AQI
30AQI
3rd January 2025
31AQI
31AQI
4th January 2025
28AQI
28AQI
5th January 2025
28AQI
28AQI
6th January 2025
26AQI
26AQI
7th January 2025
30AQI
30AQI
8th January 2025
25AQI
25AQI
9th January 2025
28AQI
28AQI
10th January 2025
25AQI
25AQI
11th January 2025
27AQI
27AQI
12th January 2025
25AQI
25AQI
13th January 2025
29AQI
29AQI
14th January 2025
31AQI
31AQI
15th January 2025
33AQI
33AQI
16th January 2025
25AQI
25AQI
17th January 2025
29AQI
29AQI
18th January 2025
26AQI
26AQI
19th January 2025
27AQI
27AQI
20th January 2025
27AQI
27AQI
21st January 2025
30AQI
30AQI
22nd January 2025
32AQI
32AQI
23rd January 2025
39AQI
39AQI
24th January 2025
39AQI
39AQI
25th January 2025
37AQI
37AQI
26th January 2025
33AQI
33AQI
27th January 2025
27AQI
27AQI
28th January 2025
31AQI
31AQI
29th January 2025
29AQI
29AQI
30th January 2025
31AQI
31AQI
31st January 2025
34AQI
34AQI
1st February 2025
37AQI
37AQI
2nd February 2025
29AQI
29AQI
3rd February 2025
32AQI
32AQI
4th February 2025
31AQI
31AQI
5th February 2025
32AQI
32AQI
6th February 2025
31AQI
31AQI
7th February 2025
32AQI
32AQI
8th February 2025
31AQI
31AQI
9th February 2025
30AQI
30AQI
10th February 2025
31AQI
31AQI
11th February 2025
32AQI
32AQI
12th February 2025
29AQI
29AQI
13th February 2025
32AQI
32AQI
14th February 2025
31AQI
31AQI
15th February 2025
31AQI
31AQI
16th February 2025
32AQI
32AQI
17th February 2025
36AQI
36AQI
18th February 2025
32AQI
32AQI
19th February 2025
32AQI
32AQI
20th February 2025
31AQI
31AQI
21st February 2025
31AQI
31AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
33AQI
33AQI
24th February 2025
34AQI
34AQI
25th February 2025
35AQI
35AQI
26th February 2025
39AQI
39AQI
27th February 2025
41AQI
41AQI
28th February 2025
43AQI
43AQI
1st March 2025
44AQI
44AQI
2nd March 2025
45AQI
45AQI
3rd March 2025
34AQI
34AQI
4th March 2025
35AQI
35AQI
5th March 2025
24AQI
24AQI
6th March 2025
33AQI
33AQI
7th March 2025
32AQI
32AQI
8th March 2025
32AQI
32AQI
9th March 2025
35AQI
35AQI
10th March 2025
36AQI
36AQI
11th March 2025
35AQI
35AQI
12th March 2025
32AQI
32AQI
13th March 2025
38AQI
38AQI
14th March 2025
23AQI
23AQI
15th March 2025
25AQI
25AQI
16th March 2025
17AQI
17AQI
17th March 2025
17AQI
17AQI
18th March 2025
16AQI
16AQI
19th March 2025
15AQI
15AQI
20th March 2025
21AQI
21AQI
21st March 2025
34AQI
34AQI
22nd March 2025
32AQI
32AQI
23rd March 2025
40AQI
40AQI
24th March 2025
38AQI
38AQI
25th March 2025
56AQI
56AQI
26th March 2025
82AQI
82AQI
27th March 2025
67AQI
67AQI
28th March 2025
44AQI
44AQI
29th March 2025
36AQI
36AQI
30th March 2025
36AQI
36AQI
31st March 2025
32AQI
32AQI
1st April 2025
26AQI
26AQI
2nd April 2025
26AQI
26AQI
3rd April 2025
21AQI
21AQI
4th April 2025
18AQI
18AQI
5th April 2025
22AQI
22AQI
6th April 2025
16AQI
16AQI
7th April 2025
20AQI
20AQI
8th April 2025
23AQI
23AQI
9th April 2025
20AQI
20AQI
10th April 2025
28AQI
28AQI
11th April 2025
26AQI
26AQI
12th April 2025
28AQI
28AQI
13th April 2025
21AQI
21AQI
14th April 2025
26AQI
26AQI
15th April 2025
18AQI
18AQI
16th April 2025
23AQI
23AQI
17th April 2025
31AQI
31AQI
18th April 2025
37AQI
37AQI
19th April 2025
45AQI
45AQI
20th April 2025
36AQI
36AQI
21st April 2025
30AQI
30AQI
22nd April 2025
30AQI
30AQI
23rd April 2025
23AQI
23AQI
24th April 2025
21AQI
21AQI
25th April 2025
28AQI
28AQI
26th April 2025
31AQI
31AQI
27th April 2025
29AQI
29AQI
28th April 2025
28AQI
28AQI
29th April 2025
27AQI
27AQI
30th April 2025
31AQI
31AQI
1st May 2025
29AQI
29AQI
2nd May 2025
22AQI
22AQI
3rd May 2025
27AQI
27AQI
4th May 2025
24AQI
24AQI
5th May 2025
24AQI
24AQI
6th May 2025
20AQI
20AQI
7th May 2025
20AQI
20AQI
8th May 2025
19AQI
19AQI
9th May 2025
21AQI
21AQI
10th May 2025
16AQI
16AQI
11th May 2025
18AQI
18AQI
12th May 2025
24AQI
24AQI
13th May 2025
29AQI
29AQI
14th May 2025
31AQI
31AQI
15th May 2025
33AQI
33AQI
16th May 2025
32AQI
32AQI
17th May 2025
26AQI
26AQI
18th May 2025
33AQI
33AQI
19th May 2025
34AQI
34AQI
20th May 2025
41AQI
41AQI
21st May 2025
34AQI
34AQI
22nd May 2025
32AQI
32AQI
23rd May 2025
30AQI
30AQI
24th May 2025
27AQI
27AQI
25th May 2025
19AQI
19AQI
26th May 2025
20AQI
20AQI
27th May 2025
20AQI
20AQI
28th May 2025
19AQI
19AQI
29th May 2025
23AQI
23AQI
30th May 2025
19AQI
19AQI
31st May 2025
20AQI
20AQI
1st June 2025
16AQI
16AQI
2nd June 2025
23AQI
23AQI
3rd June 2025
18AQI
18AQI
4th June 2025
23AQI
23AQI
5th June 2025
27AQI
27AQI
6th June 2025
29AQI
29AQI
7th June 2025
34AQI
34AQI
8th June 2025
44AQI
44AQI
9th June 2025
30AQI
30AQI
10th June 2025
21AQI
21AQI
11th June 2025
19AQI
19AQI
12th June 2025
23AQI
23AQI
13th June 2025
26AQI
26AQI
14th June 2025
22AQI
22AQI
15th June 2025
17AQI
17AQI
16th June 2025
21AQI
21AQI
17th June 2025
29AQI
29AQI
18th June 2025
29AQI
29AQI
19th June 2025
33AQI
33AQI
20th June 2025
31AQI
31AQI
21st June 2025
28AQI
28AQI
22nd June 2025
24AQI
24AQI
23rd June 2025
20AQI
20AQI
24th June 2025
21AQI
21AQI
25th June 2025
20AQI
20AQI
26th June 2025
19AQI
19AQI
27th June 2025
24AQI
24AQI
28th June 2025
23AQI
23AQI
29th June 2025
24AQI
24AQI
30th June 2025
34AQI
34AQI
1st July 2025
39AQI
39AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
51AQI
51AQI
4th July 2025
49AQI
49AQI
5th July 2025
69AQI
69AQI
6th July 2025
62AQI
62AQI
7th July 2025
74AQI
74AQI
8th July 2025
80AQI
80AQI
9th July 2025
78AQI
78AQI
10th July 2025
59AQI
59AQI
11th July 2025
54AQI
54AQI
12th July 2025
53AQI
53AQI
13th July 2025
52AQI
52AQI
14th July 2025
45AQI
45AQI
15th July 2025
47AQI
47AQI
16th July 2025
49AQI
49AQI
17th July 2025
45AQI
45AQI
18th July 2025
41AQI
41AQI
19th July 2025
38AQI
38AQI
20th July 2025
33AQI
33AQI
21st July 2025
31AQI
31AQI
22nd July 2025
32AQI
32AQI
23rd July 2025
28AQI
28AQI
24th July 2025
28AQI
28AQI
25th July 2025
25AQI
25AQI
26th July 2025
26AQI
26AQI
27th July 2025
25AQI
25AQI
28th July 2025
27AQI
27AQI
29th July 2025
33AQI
33AQI
30th July 2025
35AQI
35AQI
31st July 2025
36AQI
36AQI
1st August 2025
45AQI
45AQI
2nd August 2025
39AQI
39AQI
30AQI
33AQI
35AQI
26AQI
25AQI
25AQI
45AQI
42AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202531AQI
31
28
28
3
30
31
30
21
10
2
201
13
Highest AQI recorded in
July45AQI
Lowest AQI recorded in
June25AQI
202431AQI
31
29
29
2
29
1
30
1
30
30
1
30
1
30
31
29
1
31
359
7
Highest AQI recorded in
April38AQI
Lowest AQI recorded in
February24AQI
202329AQI
31
28
31
30
31
30
31
31
30
31
27
31
362
Highest AQI recorded in
April37AQI
Lowest AQI recorded in
August21AQI
202230AQI
30
21
31
17
29
2
30
21
1
27
1
31
28
31
297
3
Highest AQI recorded in
May39AQI
Lowest AQI recorded in
October24AQI
202124AQI
31
28
29
2
30
29
2
25
5
30
1
31
30
31
30
29
353
10
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
January10AQI
202014AQI
13
21
18
30
30
1
30
1
19
31
27
31
250
2
Highest AQI recorded in
July22AQI
Lowest AQI recorded in
September8AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
31AQILeast Polluted Year Recorded
2020(Avg.)
14AQIOiwacho's annual 2025 AQI (31) shows an average percentage change of 32.8% (worsened AQI) compared to previous years: 2020 (14), 2021 (24), 2022 (30), 2023 (29), 2024 (31).
