Seto, 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+
September Air Quality Analysis
Seto, Aichi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
11th Sep 2022
57AQILowest AQI recorded on
6th Sep 2022
11AQISame Day Analysis (20th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 37 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 20th Sep - 21st Sep 2025
Seto, Aichi, Japan
AQI
Day
Night
.
5 AM20th Sep 2025
6 PM
4 AM21st Sep 2025
Day time
Avg. Highest Time
5AM20th Sep
38AQI
Avg. Lowest Time
2PM20th Sep
24AQI
Night time
Avg. Highest Time
9PM20th Sep
40AQI
Avg. Lowest Time
6PM20th Sep
35AQI
In the last 24 hours,
Seto's AQI reached its highest point of 40 at 9 PM during the Night, while the lowest point, 24, was recorded at 2 PM during the Day between 20th Sep and 21st Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Seto, Aichi, Japan
AugSep
22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st
Day
Night
22nd Aug 2025485 AMAQI
22nd Aug 2025476 AMAQI
22nd Aug 2025487 AMAQI
22nd Aug 2025488 AMAQI
22nd Aug 2025579 AMAQI
22nd Aug 20255610 AMAQI
22nd Aug 20255211 AMAQI
22nd Aug 20255812 PMAQI
22nd Aug 2025541 PMAQI
22nd Aug 2025532 PMAQI
22nd Aug 2025543 PMAQI
22nd Aug 2025484 PMAQI
22nd Aug 2025465 PMAQI
22nd Aug 2025376 PMAQI
22nd Aug 2025507 PMAQI
22nd Aug 2025508 PMAQI
22nd Aug 2025429 PMAQI
22nd Aug 20253810 PMAQI
22nd Aug 20253911 PMAQI
23rd Aug 20254012 AMAQI
23rd Aug 2025441 AMAQI
23rd Aug 2025462 AMAQI
23rd Aug 2025463 AMAQI
23rd Aug 2025474 AMAQI
30°C26/35°C
23rd Aug 2025495 AMAQI
23rd Aug 2025506 AMAQI
23rd Aug 2025507 AMAQI
23rd Aug 2025498 AMAQI
23rd Aug 2025329 AMAQI
23rd Aug 20254010 AMAQI
23rd Aug 20254211 AMAQI
23rd Aug 20254912 PMAQI
23rd Aug 2025561 PMAQI
23rd Aug 2025382 PMAQI
23rd Aug 2025483 PMAQI
23rd Aug 2025574 PMAQI
23rd Aug 2025595 PMAQI
23rd Aug 2025576 PMAQI
23rd Aug 2025607 PMAQI
23rd Aug 2025568 PMAQI
23rd Aug 2025539 PMAQI
23rd Aug 20255410 PMAQI
23rd Aug 20255411 PMAQI
24th Aug 20255412 AMAQI
24th Aug 2025491 AMAQI
24th Aug 2025462 AMAQI
24th Aug 2025473 AMAQI
24th Aug 2025464 AMAQI
29°C26/33°C
24th Aug 2025465 AMAQI
24th Aug 2025476 AMAQI
24th Aug 2025477 AMAQI
24th Aug 2025478 AMAQI
24th Aug 2025559 AMAQI
24th Aug 20256010 AMAQI
24th Aug 20256511 AMAQI
24th Aug 20256412 PMAQI
24th Aug 2025651 PMAQI
24th Aug 2025592 PMAQI
24th Aug 2025613 PMAQI
24th Aug 2025604 PMAQI
24th Aug 2025655 PMAQI
24th Aug 2025736 PMAQI
24th Aug 2025647 PMAQI
24th Aug 2025628 PMAQI
24th Aug 2025569 PMAQI
24th Aug 20255410 PMAQI
24th Aug 20255511 PMAQI
25th Aug 20255212 AMAQI
25th Aug 2025481 AMAQI
25th Aug 2025482 AMAQI
25th Aug 2025483 AMAQI
25th Aug 2025514 AMAQI
30°C26/35°C
25th Aug 2025525 AMAQI
25th Aug 2025526 AMAQI
25th Aug 2025527 AMAQI
25th Aug 2025528 AMAQI
25th Aug 2025609 AMAQI
25th Aug 20255710 AMAQI
25th Aug 20256311 AMAQI
25th Aug 20256012 PMAQI
25th Aug 2025711 PMAQI
25th Aug 2025742 PMAQI
25th Aug 2025783 PMAQI
25th Aug 2025704 PMAQI
25th Aug 2025605 PMAQI
25th Aug 2025626 PMAQI
25th Aug 2025667 PMAQI
25th Aug 2025588 PMAQI
25th Aug 2025559 PMAQI
25th Aug 20255310 PMAQI
25th Aug 20255611 PMAQI
26th Aug 20255412 AMAQI
26th Aug 2025561 AMAQI
26th Aug 2025502 AMAQI
26th Aug 2025503 AMAQI
26th Aug 2025524 AMAQI
28°C25/33°C
26th Aug 2025535 AMAQI
26th Aug 2025546 AMAQI
26th Aug 2025537 AMAQI
26th Aug 2025528 AMAQI
26th Aug 2025559 AMAQI
26th Aug 20255810 AMAQI
26th Aug 20256711 AMAQI
26th Aug 20256912 PMAQI
26th Aug 2025641 PMAQI
26th Aug 2025662 PMAQI
26th Aug 2025623 PMAQI
26th Aug 2025564 PMAQI
26th Aug 2025605 PMAQI
26th Aug 2025606 PMAQI
26th Aug 2025647 PMAQI
26th Aug 2025588 PMAQI
26th Aug 2025539 PMAQI
26th Aug 20255010 PMAQI
26th Aug 20254911 PMAQI
27th Aug 20254812 AMAQI
27th Aug 2025521 AMAQI
27th Aug 2025522 AMAQI
27th Aug 2025523 AMAQI
27th Aug 2025544 AMAQI
28°C24/33°C
27th Aug 2025545 AMAQI
27th Aug 2025546 AMAQI
27th Aug 2025547 AMAQI
27th Aug 2025548 AMAQI
27th Aug 2025449 AMAQI
27th Aug 20254410 AMAQI
27th Aug 20255211 AMAQI
27th Aug 20255712 PMAQI
27th Aug 2025541 PMAQI
27th Aug 2025602 PMAQI
27th Aug 2025553 PMAQI
27th Aug 2025584 PMAQI
27th Aug 2025585 PMAQI
27th Aug 2025566 PMAQI
27th Aug 2025447 PMAQI
27th Aug 2025478 PMAQI
27th Aug 2025529 PMAQI
27th Aug 20255210 PMAQI
27th Aug 20255111 PMAQI
28th Aug 20255212 AMAQI
28th Aug 2025511 AMAQI
28th Aug 2025532 AMAQI
28th Aug 2025543 AMAQI
28th Aug 2025524 AMAQI
28°C24/33°C
28th Aug 2025535 AMAQI
28th Aug 2025536 AMAQI
28th Aug 2025527 AMAQI
28th Aug 2025538 AMAQI
28th Aug 2025449 AMAQI
28th Aug 20255410 AMAQI
28th Aug 20255411 AMAQI
28th Aug 20255012 PMAQI
28th Aug 2025591 PMAQI
28th Aug 2025462 PMAQI
28th Aug 2025493 PMAQI
28th Aug 2025564 PMAQI
28th Aug 2025495 PMAQI
28th Aug 2025566 PMAQI
28th Aug 2025507 PMAQI
28th Aug 2025558 PMAQI
28th Aug 2025489 PMAQI
28th Aug 20254910 PMAQI
28th Aug 20254611 PMAQI
29th Aug 20254512 AMAQI
29th Aug 2025521 AMAQI
29th Aug 2025522 AMAQI
29th Aug 2025523 AMAQI
29th Aug 2025524 AMAQI
28°C24/34°C
29th Aug 2025525 AMAQI
29th Aug 2025526 AMAQI
29th Aug 2025527 AMAQI
29th Aug 2025528 AMAQI
29th Aug 2025489 AMAQI
29th Aug 20255210 AMAQI
29th Aug 20255411 AMAQI
29th Aug 20255312 PMAQI
29th Aug 2025601 PMAQI
29th Aug 2025612 PMAQI
29th Aug 2025653 PMAQI
29th Aug 2025644 PMAQI
29th Aug 2025655 PMAQI
29th Aug 2025616 PMAQI
29th Aug 2025587 PMAQI
29th Aug 2025598 PMAQI
29th Aug 2025579 PMAQI
29th Aug 20255610 PMAQI
29th Aug 20255711 PMAQI
30th Aug 20255512 AMAQI
30th Aug 2025531 AMAQI
30th Aug 2025522 AMAQI
30th Aug 2025523 AMAQI
30th Aug 2025524 AMAQI
29°C25/34°C
30th Aug 2025525 AMAQI
30th Aug 2025526 AMAQI
30th Aug 2025527 AMAQI
30th Aug 2025528 AMAQI
30th Aug 2025599 AMAQI
30th Aug 20256310 AMAQI
30th Aug 20257211 AMAQI
30th Aug 20256112 PMAQI
30th Aug 2025571 PMAQI
30th Aug 2025562 PMAQI
30th Aug 2025583 PMAQI
30th Aug 2025604 PMAQI
30th Aug 2025595 PMAQI
30th Aug 2025606 PMAQI
30th Aug 2025587 PMAQI
30th Aug 2025528 PMAQI
30th Aug 2025519 PMAQI
30th Aug 20255210 PMAQI
30th Aug 20254711 PMAQI
31st Aug 20255012 AMAQI
31st Aug 2025521 AMAQI
31st Aug 2025522 AMAQI
31st Aug 2025523 AMAQI
31st Aug 2025524 AMAQI
30°C26/37°C
31st Aug 2025535 AMAQI
31st Aug 2025536 AMAQI
31st Aug 2025537 AMAQI
31st Aug 2025538 AMAQI
31st Aug 2025629 AMAQI
31st Aug 20255910 AMAQI
31st Aug 20255811 AMAQI
31st Aug 20256512 PMAQI
31st Aug 2025631 PMAQI
31st Aug 2025572 PMAQI
31st Aug 2025603 PMAQI
31st Aug 2025564 PMAQI
31st Aug 2025525 PMAQI
31st Aug 2025536 PMAQI
31st Aug 2025577 PMAQI
31st Aug 2025548 PMAQI
31st Aug 2025549 PMAQI
31st Aug 20255310 PMAQI
31st Aug 20255211 PMAQI
1st Sep 20255212 AMAQI
1st Sep 2025511 AMAQI
1st Sep 2025522 AMAQI
1st Sep 2025513 AMAQI
1st Sep 2025534 AMAQI
30°C26/36°C
1st Sep 2025545 AMAQI
1st Sep 2025526 AMAQI
1st Sep 2025537 AMAQI
1st Sep 2025538 AMAQI
1st Sep 2025489 AMAQI
1st Sep 20253510 AMAQI
1st Sep 20253211 AMAQI
1st Sep 20254312 PMAQI
1st Sep 2025381 PMAQI
1st Sep 2025352 PMAQI
1st Sep 2025353 PMAQI
1st Sep 2025294 PMAQI
1st Sep 2025435 PMAQI
1st Sep 2025296 PMAQI
1st Sep 2025327 PMAQI
1st Sep 2025388 PMAQI
1st Sep 2025399 PMAQI
1st Sep 20253910 PMAQI
1st Sep 20253811 PMAQI
2nd Sep 20254212 AMAQI
2nd Sep 2025501 AMAQI
2nd Sep 2025522 AMAQI
2nd Sep 2025523 AMAQI
2nd Sep 2025504 AMAQI
30°C26/35°C
2nd Sep 2025485 AMAQI
2nd Sep 2025496 AMAQI
2nd Sep 2025487 AMAQI
2nd Sep 2025488 AMAQI
2nd Sep 2025169 AMAQI
2nd Sep 20252410 AMAQI
2nd Sep 20252711 AMAQI
2nd Sep 20252912 PMAQI
2nd Sep 2025361 PMAQI
2nd Sep 2025242 PMAQI
2nd Sep 2025303 PMAQI
2nd Sep 2025234 PMAQI
2nd Sep 2025375 PMAQI
2nd Sep 2025246 PMAQI
2nd Sep 2025327 PMAQI
2nd Sep 2025388 PMAQI
2nd Sep 2025369 PMAQI
2nd Sep 20253210 PMAQI
2nd Sep 20253411 PMAQI
3rd Sep 20253312 AMAQI
3rd Sep 2025441 AMAQI
3rd Sep 2025472 AMAQI
3rd Sep 2025483 AMAQI
3rd Sep 2025454 AMAQI
30°C25/35°C
3rd Sep 2025445 AMAQI
3rd Sep 2025446 AMAQI
3rd Sep 2025497 AMAQI
3rd Sep 2025448 AMAQI
3rd Sep 2025249 AMAQI
3rd Sep 20253310 AMAQI
3rd Sep 20253411 AMAQI
3rd Sep 20253312 PMAQI
3rd Sep 2025381 PMAQI
3rd Sep 2025412 PMAQI
3rd Sep 2025383 PMAQI
3rd Sep 2025374 PMAQI
3rd Sep 2025385 PMAQI
3rd Sep 2025516 PMAQI
3rd Sep 2025367 PMAQI
3rd Sep 2025308 PMAQI
3rd Sep 2025319 PMAQI
3rd Sep 20253210 PMAQI
3rd Sep 20252911 PMAQI
4th Sep 20253012 AMAQI
4th Sep 2025421 AMAQI
4th Sep 2025462 AMAQI
4th Sep 2025453 AMAQI
4th Sep 2025444 AMAQI
28°C25/35°C
4th Sep 2025425 AMAQI
4th Sep 2025426 AMAQI
4th Sep 2025427 AMAQI
4th Sep 2025418 AMAQI
4th Sep 2025219 AMAQI
4th Sep 20252210 AMAQI
4th Sep 20252011 AMAQI
4th Sep 20252412 PMAQI
4th Sep 2025231 PMAQI
4th Sep 2025302 PMAQI
4th Sep 2025223 PMAQI
4th Sep 2025224 PMAQI
4th Sep 2025185 PMAQI
4th Sep 2025316 PMAQI
4th Sep 2025237 PMAQI
4th Sep 2025118 PMAQI
4th Sep 2025119 PMAQI
4th Sep 20251110 PMAQI
4th Sep 20251111 PMAQI
5th Sep 20251112 AMAQI
5th Sep 2025211 AMAQI
5th Sep 2025422 AMAQI
5th Sep 2025433 AMAQI
5th Sep 2025394 AMAQI
25°C23/26°C
5th Sep 2025375 AMAQI
5th Sep 2025376 AMAQI
5th Sep 2025377 AMAQI
5th Sep 2025388 AMAQI
5th Sep 2025209 AMAQI
5th Sep 20252110 AMAQI
5th Sep 20251711 AMAQI
5th Sep 20252012 PMAQI
5th Sep 2025231 PMAQI
5th Sep 2025192 PMAQI
5th Sep 2025223 PMAQI
5th Sep 2025214 PMAQI
5th Sep 2025225 PMAQI
5th Sep 2025246 PMAQI
5th Sep 2025347 PMAQI
5th Sep 2025318 PMAQI
5th Sep 2025219 PMAQI
5th Sep 20252210 PMAQI
5th Sep 20252211 PMAQI
6th Sep 20252012 AMAQI
6th Sep 2025241 AMAQI
6th Sep 2025252 AMAQI
6th Sep 2025253 AMAQI
6th Sep 2025274 AMAQI
24°C23/27°C
6th Sep 2025265 AMAQI
6th Sep 2025286 AMAQI
6th Sep 2025287 AMAQI
6th Sep 2025288 AMAQI
6th Sep 2025199 AMAQI
6th Sep 20252210 AMAQI
6th Sep 20253011 AMAQI
6th Sep 20252112 PMAQI
6th Sep 2025271 PMAQI
6th Sep 2025292 PMAQI
6th Sep 2025343 PMAQI
6th Sep 2025284 PMAQI
6th Sep 2025355 PMAQI
6th Sep 2025306 PMAQI
6th Sep 2025317 PMAQI
6th Sep 2025338 PMAQI
6th Sep 2025289 PMAQI
6th Sep 20252310 PMAQI
6th Sep 20252611 PMAQI
7th Sep 20252412 AMAQI
7th Sep 2025241 AMAQI
7th Sep 2025252 AMAQI
7th Sep 2025243 AMAQI
7th Sep 2025264 AMAQI
26°C21/31°C
7th Sep 2025245 AMAQI
7th Sep 2025256 AMAQI
7th Sep 2025267 AMAQI
7th Sep 2025268 AMAQI
7th Sep 2025299 AMAQI
7th Sep 20252410 AMAQI
7th Sep 20253411 AMAQI
7th Sep 20254012 PMAQI
7th Sep 2025401 PMAQI
7th Sep 2025412 PMAQI
7th Sep 2025463 PMAQI
7th Sep 2025484 PMAQI
7th Sep 2025455 PMAQI
7th Sep 2025426 PMAQI
7th Sep 2025487 PMAQI
7th Sep 2025428 PMAQI
7th Sep 2025369 PMAQI
7th Sep 20253010 PMAQI
7th Sep 20253111 PMAQI
8th Sep 20253012 AMAQI
8th Sep 2025261 AMAQI
8th Sep 2025272 AMAQI
8th Sep 2025263 AMAQI
8th Sep 2025264 AMAQI
27°C23/32°C
8th Sep 2025275 AMAQI
8th Sep 2025276 AMAQI
8th Sep 2025277 AMAQI
8th Sep 2025278 AMAQI
8th Sep 2025439 AMAQI
8th Sep 20255010 AMAQI
8th Sep 20254511 AMAQI
8th Sep 20255512 PMAQI
8th Sep 2025531 PMAQI
8th Sep 2025502 PMAQI
8th Sep 2025503 PMAQI
8th Sep 2025564 PMAQI
8th Sep 2025585 PMAQI
8th Sep 2025476 PMAQI
8th Sep 2025507 PMAQI
8th Sep 2025328 PMAQI
8th Sep 2025329 PMAQI
8th Sep 20253610 PMAQI
8th Sep 20253511 PMAQI
9th Sep 20253212 AMAQI
9th Sep 2025301 AMAQI
9th Sep 2025282 AMAQI
9th Sep 2025293 AMAQI
9th Sep 2025304 AMAQI
29°C24/34°C
9th Sep 2025325 AMAQI
9th Sep 2025326 AMAQI
9th Sep 2025317 AMAQI
9th Sep 2025318 AMAQI
9th Sep 2025409 AMAQI
9th Sep 20253610 AMAQI
9th Sep 20253811 AMAQI
9th Sep 20253712 PMAQI
9th Sep 2025461 PMAQI
9th Sep 2025412 PMAQI
9th Sep 2025423 PMAQI
9th Sep 2025434 PMAQI
9th Sep 2025545 PMAQI
9th Sep 2025566 PMAQI
9th Sep 2025537 PMAQI
9th Sep 2025458 PMAQI
9th Sep 2025399 PMAQI
9th Sep 20253610 PMAQI
9th Sep 20253811 PMAQI
10th Sep 20253612 AMAQI
10th Sep 2025331 AMAQI
10th Sep 2025312 AMAQI
10th Sep 2025303 AMAQI
10th Sep 2025344 AMAQI
29°C25/34°C
10th Sep 2025345 AMAQI
10th Sep 2025346 AMAQI
10th Sep 2025357 AMAQI
10th Sep 2025348 AMAQI
10th Sep 2025499 AMAQI
10th Sep 20255610 AMAQI
10th Sep 20255711 AMAQI
10th Sep 20255012 PMAQI
10th Sep 2025571 PMAQI
10th Sep 2025432 PMAQI
10th Sep 2025513 PMAQI
10th Sep 2025404 PMAQI
10th Sep 2025335 PMAQI
10th Sep 2025296 PMAQI
10th Sep 2025277 PMAQI
10th Sep 2025278 PMAQI
10th Sep 2025299 PMAQI
10th Sep 20253110 PMAQI
10th Sep 20252511 PMAQI
11th Sep 20252712 AMAQI
11th Sep 2025341 AMAQI
11th Sep 2025342 AMAQI
11th Sep 2025343 AMAQI
11th Sep 2025374 AMAQI
27°C24/32°C
11th Sep 2025385 AMAQI
11th Sep 2025386 AMAQI
11th Sep 2025387 AMAQI
11th Sep 2025388 AMAQI
11th Sep 2025179 AMAQI
11th Sep 20252710 AMAQI
11th Sep 20251811 AMAQI
11th Sep 20252012 PMAQI
11th Sep 2025231 PMAQI
11th Sep 2025312 PMAQI
11th Sep 2025263 PMAQI
11th Sep 2025314 PMAQI
11th Sep 2025265 PMAQI
11th Sep 2025266 PMAQI
11th Sep 2025277 PMAQI
11th Sep 2025308 PMAQI
11th Sep 2025299 PMAQI
11th Sep 20252810 PMAQI
11th Sep 20253011 PMAQI
12th Sep 20253212 AMAQI
12th Sep 2025351 AMAQI
12th Sep 2025362 AMAQI
12th Sep 2025363 AMAQI
12th Sep 2025344 AMAQI
25°C23/29°C
12th Sep 2025325 AMAQI
12th Sep 2025326 AMAQI
12th Sep 2025327 AMAQI
12th Sep 2025328 AMAQI
12th Sep 2025239 AMAQI
12th Sep 20252410 AMAQI
12th Sep 20252011 AMAQI
12th Sep 20252112 PMAQI
12th Sep 2025281 PMAQI
12th Sep 2025412 PMAQI
12th Sep 2025343 PMAQI
12th Sep 2025324 PMAQI
12th Sep 2025305 PMAQI
12th Sep 2025316 PMAQI
12th Sep 2025347 PMAQI
12th Sep 2025278 PMAQI
12th Sep 2025309 PMAQI
12th Sep 20252510 PMAQI
12th Sep 20252511 PMAQI
13th Sep 20252812 AMAQI
13th Sep 2025321 AMAQI
13th Sep 2025322 AMAQI
13th Sep 2025343 AMAQI
13th Sep 2025324 AMAQI
24°C22/28°C
13th Sep 2025335 AMAQI
13th Sep 2025326 AMAQI
13th Sep 2025327 AMAQI
13th Sep 2025328 AMAQI
13th Sep 2025169 AMAQI
13th Sep 20251610 AMAQI
13th Sep 20252111 AMAQI
13th Sep 20252512 PMAQI
13th Sep 2025231 PMAQI
13th Sep 2025212 PMAQI
13th Sep 2025243 PMAQI
13th Sep 2025274 PMAQI
13th Sep 2025245 PMAQI
13th Sep 2025226 PMAQI
13th Sep 2025247 PMAQI
13th Sep 2025278 PMAQI
13th Sep 2025259 PMAQI
13th Sep 20252810 PMAQI
13th Sep 20253011 PMAQI
14th Sep 20252812 AMAQI
14th Sep 2025311 AMAQI
14th Sep 2025322 AMAQI
14th Sep 2025323 AMAQI
14th Sep 2025304 AMAQI
25°C23/28°C
14th Sep 2025325 AMAQI
14th Sep 2025306 AMAQI
14th Sep 2025307 AMAQI
14th Sep 2025318 AMAQI
14th Sep 2025289 AMAQI
14th Sep 20253210 AMAQI
14th Sep 20252911 AMAQI
14th Sep 20254312 PMAQI
14th Sep 2025541 PMAQI
14th Sep 2025372 PMAQI
14th Sep 2025363 PMAQI
14th Sep 2025364 PMAQI
14th Sep 2025505 PMAQI
14th Sep 2025556 PMAQI
14th Sep 2025577 PMAQI
14th Sep 2025488 PMAQI
14th Sep 2025449 PMAQI
14th Sep 20254510 PMAQI
14th Sep 20254311 PMAQI
15th Sep 20254412 AMAQI
15th Sep 2025351 AMAQI
15th Sep 2025322 AMAQI
15th Sep 2025333 AMAQI
15th Sep 2025324 AMAQI
26°C23/29°C
15th Sep 2025325 AMAQI
15th Sep 2025346 AMAQI
15th Sep 2025347 AMAQI
15th Sep 2025348 AMAQI
15th Sep 2025429 AMAQI
15th Sep 20255210 AMAQI
15th Sep 20254611 AMAQI
15th Sep 20254412 PMAQI
15th Sep 2025401 PMAQI
15th Sep 2025262 PMAQI
15th Sep 2025253 PMAQI
15th Sep 2025244 PMAQI
15th Sep 2025245 PMAQI
15th Sep 2025206 PMAQI
15th Sep 2025227 PMAQI
15th Sep 2025268 PMAQI
15th Sep 2025309 PMAQI
15th Sep 20253410 PMAQI
15th Sep 20253411 PMAQI
16th Sep 20253212 AMAQI
16th Sep 2025341 AMAQI
16th Sep 2025352 AMAQI
16th Sep 2025343 AMAQI
16th Sep 2025364 AMAQI
28°C24/33°C
16th Sep 2025365 AMAQI
16th Sep 2025366 AMAQI
16th Sep 2025367 AMAQI
16th Sep 2025368 AMAQI
16th Sep 2025439 AMAQI
16th Sep 20254610 AMAQI
16th Sep 20254711 AMAQI
16th Sep 20255312 PMAQI
16th Sep 2025491 PMAQI
16th Sep 2025532 PMAQI
16th Sep 2025493 PMAQI
16th Sep 2025534 PMAQI
16th Sep 2025585 PMAQI
16th Sep 2025666 PMAQI
16th Sep 2025577 PMAQI
16th Sep 2025468 PMAQI
16th Sep 2025429 PMAQI
16th Sep 20254410 PMAQI
16th Sep 20254211 PMAQI
17th Sep 20254412 AMAQI
17th Sep 2025381 AMAQI
17th Sep 2025342 AMAQI
17th Sep 2025343 AMAQI
17th Sep 2025364 AMAQI
28°C24/33°C
17th Sep 2025385 AMAQI
17th Sep 2025386 AMAQI
17th Sep 2025387 AMAQI
17th Sep 2025388 AMAQI
17th Sep 2025499 AMAQI
17th Sep 20255610 AMAQI
17th Sep 20255611 AMAQI
17th Sep 20255712 PMAQI
17th Sep 2025601 PMAQI
17th Sep 2025622 PMAQI
17th Sep 2025583 PMAQI
17th Sep 2025564 PMAQI
17th Sep 2025575 PMAQI
17th Sep 2025566 PMAQI
17th Sep 2025547 PMAQI
17th Sep 2025578 PMAQI
17th Sep 2025549 PMAQI
17th Sep 20255410 PMAQI
17th Sep 20255411 PMAQI
18th Sep 20255112 AMAQI
18th Sep 2025481 AMAQI
18th Sep 2025382 AMAQI
18th Sep 2025393 AMAQI
18th Sep 2025414 AMAQI
28°C24/33°C
18th Sep 2025455 AMAQI
18th Sep 2025446 AMAQI
18th Sep 2025447 AMAQI
18th Sep 2025448 AMAQI
18th Sep 2025579 AMAQI
18th Sep 20256810 AMAQI
18th Sep 20256811 AMAQI
18th Sep 20256412 PMAQI
18th Sep 2025551 PMAQI
18th Sep 2025352 PMAQI
18th Sep 2025333 PMAQI
18th Sep 2025264 PMAQI
18th Sep 2025175 PMAQI
18th Sep 2025186 PMAQI
18th Sep 2025167 PMAQI
18th Sep 2025218 PMAQI
18th Sep 2025299 PMAQI
18th Sep 20253110 PMAQI
18th Sep 20253111 PMAQI
19th Sep 20253012 AMAQI
19th Sep 2025341 AMAQI
19th Sep 2025442 AMAQI
19th Sep 2025443 AMAQI
19th Sep 2025464 AMAQI
26°C23/31°C
19th Sep 2025505 AMAQI
19th Sep 2025506 AMAQI
19th Sep 2025507 AMAQI
19th Sep 2025508 AMAQI
19th Sep 2025249 AMAQI
19th Sep 20251410 AMAQI
19th Sep 20251811 AMAQI
19th Sep 20251812 PMAQI
19th Sep 2025191 PMAQI
19th Sep 2025262 PMAQI
19th Sep 2025263 PMAQI
19th Sep 2025244 PMAQI
19th Sep 2025245 PMAQI
19th Sep 2025246 PMAQI
19th Sep 2025237 PMAQI
19th Sep 2025288 PMAQI
19th Sep 2025349 PMAQI
19th Sep 20253410 PMAQI
19th Sep 20253411 PMAQI
20th Sep 20253412 AMAQI
20th Sep 2025381 AMAQI
20th Sep 2025442 AMAQI
20th Sep 2025443 AMAQI
20th Sep 2025414 AMAQI
24°C22/28°C
20th Sep 2025385 AMAQI
20th Sep 2025386 AMAQI
20th Sep 2025387 AMAQI
20th Sep 2025388 AMAQI
20th Sep 2025329 AMAQI
20th Sep 20252910 AMAQI
20th Sep 20252611 AMAQI
20th Sep 20252512 PMAQI
20th Sep 2025261 PMAQI
20th Sep 2025242 PMAQI
20th Sep 2025263 PMAQI
20th Sep 2025344 PMAQI
20th Sep 2025355 PMAQI
20th Sep 2025356 PMAQI
20th Sep 2025367 PMAQI
20th Sep 2025388 PMAQI
20th Sep 2025409 PMAQI
20th Sep 20253910 PMAQI
20th Sep 20253911 PMAQI
21st Sep 20253712 AMAQI
21st Sep 2025391 AMAQI
21st Sep 2025402 AMAQI
21st Sep 2025403 AMAQI
21st Sep 2025384 AMAQI
22°C21/23°C
21st Sep 2025375 AMAQI
5 AM21st Sep 2025366 AMAQI
21st Sep 2025367 AMAQI
21st Sep 2025378 AMAQI
21st Sep 2025269 AMAQI
21st Sep 20251910 AMAQI
21st Sep 20251711 AMAQI
11 AM21st Sep 20251612 PMAQI
21st Sep 2025131 PMAQI
21st Sep 2025132 PMAQI
21st Sep 2025153 PMAQI
21st Sep 2025154 PMAQI
21st Sep 2025145 PMAQI
21st Sep 2025146 PMAQI
6 PM21st Sep 2025147 PMAQI
21st Sep 2025198 PMAQI
21st Sep 2025269 PMAQI
21st Sep 20252710 PMAQI
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 1 PM
44AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
9 AM
38AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 1 PM (Avg. 44), while the lowest AQI was between 9 AM to 9 AM (Avg. 38).
Night time
Avg. Highest Time
1 AM - 7 PM
41AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM
38AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 7 PM (Avg. 41), while the lowest AQI was between 12 AM to 12 AM (Avg. 38).
2025 Days Vs Air Quality
Seto, Aichi, Japan
2025
90%
238
10%
25
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Good
238 DaysModerate
25 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 264 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
Seto, 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
27AQI
27AQI
2nd January 2025
28AQI
28AQI
3rd January 2025
28AQI
28AQI
4th January 2025
27AQI
27AQI
5th January 2025
25AQI
25AQI
6th January 2025
23AQI
23AQI
7th January 2025
27AQI
27AQI
8th January 2025
27AQI
27AQI
9th January 2025
27AQI
27AQI
10th January 2025
21AQI
21AQI
11th January 2025
24AQI
24AQI
12th January 2025
23AQI
23AQI
13th January 2025
25AQI
25AQI
14th January 2025
27AQI
27AQI
15th January 2025
29AQI
29AQI
16th January 2025
23AQI
23AQI
17th January 2025
27AQI
27AQI
18th January 2025
25AQI
25AQI
19th January 2025
26AQI
26AQI
20th January 2025
25AQI
25AQI
21st January 2025
32AQI
32AQI
22nd January 2025
30AQI
30AQI
23rd January 2025
35AQI
35AQI
24th January 2025
34AQI
34AQI
25th January 2025
35AQI
35AQI
26th January 2025
32AQI
32AQI
27th January 2025
23AQI
23AQI
28th January 2025
28AQI
28AQI
29th January 2025
28AQI
28AQI
30th January 2025
28AQI
28AQI
31st January 2025
30AQI
30AQI
1st February 2025
34AQI
34AQI
2nd February 2025
25AQI
25AQI
3rd February 2025
26AQI
26AQI
4th February 2025
30AQI
30AQI
5th February 2025
29AQI
29AQI
6th February 2025
30AQI
30AQI
7th February 2025
29AQI
29AQI
8th February 2025
28AQI
28AQI
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
29AQI
29AQI
15th February 2025
30AQI
30AQI
16th February 2025
30AQI
30AQI
17th February 2025
32AQI
32AQI
18th February 2025
29AQI
29AQI
19th February 2025
29AQI
29AQI
20th February 2025
29AQI
29AQI
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
35AQI
35AQI
27th February 2025
37AQI
37AQI
28th February 2025
36AQI
36AQI
1st March 2025
37AQI
37AQI
2nd March 2025
36AQI
36AQI
3rd March 2025
33AQI
33AQI
4th March 2025
24AQI
24AQI
5th March 2025
21AQI
21AQI
6th March 2025
31AQI
31AQI
7th March 2025
31AQI
31AQI
8th March 2025
29AQI
29AQI
9th March 2025
35AQI
35AQI
10th March 2025
33AQI
33AQI
11th March 2025
30AQI
30AQI
12th March 2025
25AQI
25AQI
13th March 2025
35AQI
35AQI
14th March 2025
20AQI
20AQI
15th March 2025
19AQI
19AQI
16th March 2025
16AQI
16AQI
17th March 2025
16AQI
16AQI
18th March 2025
15AQI
15AQI
19th March 2025
15AQI
15AQI
20th March 2025
20AQI
20AQI
21st March 2025
29AQI
29AQI
22nd March 2025
27AQI
27AQI
23rd March 2025
33AQI
33AQI
24th March 2025
33AQI
33AQI
25th March 2025
50AQI
50AQI
26th March 2025
65AQI
65AQI
27th March 2025
56AQI
56AQI
28th March 2025
37AQI
37AQI
29th March 2025
31AQI
31AQI
30th March 2025
30AQI
30AQI
31st March 2025
28AQI
28AQI
1st April 2025
22AQI
22AQI
2nd April 2025
23AQI
23AQI
3rd April 2025
18AQI
18AQI
4th April 2025
17AQI
17AQI
5th April 2025
19AQI
19AQI
6th April 2025
14AQI
14AQI
7th April 2025
16AQI
16AQI
8th April 2025
17AQI
17AQI
9th April 2025
17AQI
17AQI
10th April 2025
22AQI
22AQI
11th April 2025
22AQI
22AQI
12th April 2025
22AQI
22AQI
13th April 2025
17AQI
17AQI
14th April 2025
20AQI
20AQI
15th April 2025
17AQI
17AQI
16th April 2025
19AQI
19AQI
17th April 2025
21AQI
21AQI
18th April 2025
27AQI
27AQI
19th April 2025
27AQI
27AQI
20th April 2025
25AQI
25AQI
21st April 2025
21AQI
21AQI
22nd April 2025
19AQI
19AQI
23rd April 2025
15AQI
15AQI
24th April 2025
13AQI
13AQI
25th April 2025
19AQI
19AQI
26th April 2025
19AQI
19AQI
27th April 2025
19AQI
19AQI
28th April 2025
18AQI
18AQI
29th April 2025
17AQI
17AQI
30th April 2025
21AQI
21AQI
1st May 2025
18AQI
18AQI
2nd May 2025
17AQI
17AQI
3rd May 2025
18AQI
18AQI
4th May 2025
20AQI
20AQI
5th May 2025
18AQI
18AQI
6th May 2025
15AQI
15AQI
7th May 2025
15AQI
15AQI
8th May 2025
16AQI
16AQI
9th May 2025
16AQI
16AQI
10th May 2025
14AQI
14AQI
11th May 2025
15AQI
15AQI
12th May 2025
18AQI
18AQI
13th May 2025
21AQI
21AQI
14th May 2025
22AQI
22AQI
15th May 2025
23AQI
23AQI
16th May 2025
22AQI
22AQI
17th May 2025
20AQI
20AQI
18th May 2025
22AQI
22AQI
19th May 2025
25AQI
25AQI
20th May 2025
33AQI
33AQI
21st May 2025
32AQI
32AQI
22nd May 2025
25AQI
25AQI
23rd May 2025
24AQI
24AQI
24th May 2025
22AQI
22AQI
25th May 2025
17AQI
17AQI
26th May 2025
17AQI
17AQI
27th May 2025
17AQI
17AQI
28th May 2025
15AQI
15AQI
29th May 2025
18AQI
18AQI
30th May 2025
16AQI
16AQI
31st May 2025
16AQI
16AQI
1st June 2025
15AQI
15AQI
2nd June 2025
19AQI
19AQI
3rd June 2025
15AQI
15AQI
4th June 2025
18AQI
18AQI
5th June 2025
20AQI
20AQI
6th June 2025
20AQI
20AQI
7th June 2025
25AQI
25AQI
8th June 2025
29AQI
29AQI
9th June 2025
23AQI
23AQI
10th June 2025
21AQI
21AQI
11th June 2025
20AQI
20AQI
12th June 2025
22AQI
22AQI
13th June 2025
23AQI
23AQI
14th June 2025
20AQI
20AQI
15th June 2025
19AQI
19AQI
16th June 2025
20AQI
20AQI
17th June 2025
22AQI
22AQI
18th June 2025
23AQI
23AQI
19th June 2025
28AQI
28AQI
20th June 2025
30AQI
30AQI
21st June 2025
24AQI
24AQI
22nd June 2025
15AQI
15AQI
23rd June 2025
15AQI
15AQI
24th June 2025
16AQI
16AQI
25th June 2025
17AQI
17AQI
26th June 2025
17AQI
17AQI
27th June 2025
19AQI
19AQI
28th June 2025
18AQI
18AQI
29th June 2025
20AQI
20AQI
30th June 2025
44AQI
44AQI
1st July 2025
53AQI
53AQI
2nd July 2025
71AQI
71AQI
3rd July 2025
64AQI
64AQI
4th July 2025
66AQI
66AQI
5th July 2025
75AQI
75AQI
6th July 2025
60AQI
60AQI
7th July 2025
68AQI
68AQI
8th July 2025
73AQI
73AQI
9th July 2025
83AQI
83AQI
10th July 2025
62AQI
62AQI
11th July 2025
52AQI
52AQI
12th July 2025
52AQI
52AQI
13th July 2025
49AQI
49AQI
14th July 2025
41AQI
41AQI
15th July 2025
46AQI
46AQI
16th July 2025
44AQI
44AQI
17th July 2025
39AQI
39AQI
18th July 2025
35AQI
35AQI
19th July 2025
32AQI
32AQI
20th July 2025
31AQI
31AQI
21st July 2025
32AQI
32AQI
22nd July 2025
34AQI
34AQI
23rd July 2025
36AQI
36AQI
24th July 2025
35AQI
35AQI
25th July 2025
26AQI
26AQI
26th July 2025
24AQI
24AQI
27th July 2025
24AQI
24AQI
28th July 2025
33AQI
33AQI
29th July 2025
39AQI
39AQI
30th July 2025
41AQI
41AQI
31st July 2025
39AQI
39AQI
1st August 2025
45AQI
45AQI
2nd August 2025
45AQI
45AQI
3rd August 2025
49AQI
49AQI
4th August 2025
65AQI
65AQI
5th August 2025
53AQI
53AQI
6th August 2025
52AQI
52AQI
7th August 2025
44AQI
44AQI
8th August 2025
39AQI
39AQI
9th August 2025
47AQI
47AQI
10th August 2025
36AQI
36AQI
11th August 2025
34AQI
34AQI
12th August 2025
35AQI
35AQI
13th August 2025
35AQI
35AQI
14th August 2025
39AQI
39AQI
15th August 2025
42AQI
42AQI
16th August 2025
43AQI
43AQI
17th August 2025
41AQI
41AQI
18th August 2025
43AQI
43AQI
19th August 2025
47AQI
47AQI
20th August 2025
47AQI
47AQI
21st August 2025
48AQI
48AQI
22nd August 2025
47AQI
47AQI
23rd August 2025
50AQI
50AQI
24th August 2025
56AQI
56AQI
25th August 2025
58AQI
58AQI
26th August 2025
56AQI
56AQI
27th August 2025
52AQI
52AQI
28th August 2025
51AQI
51AQI
29th August 2025
56AQI
56AQI
30th August 2025
55AQI
55AQI
31st August 2025
55AQI
55AQI
1st September 2025
43AQI
43AQI
2nd September 2025
37AQI
37AQI
3rd September 2025
39AQI
39AQI
4th September 2025
27AQI
27AQI
5th September 2025
23AQI
23AQI
6th September 2025
27AQI
27AQI
7th September 2025
33AQI
33AQI
8th September 2025
38AQI
38AQI
9th September 2025
38AQI
38AQI
10th September 2025
36AQI
36AQI
11th September 2025
30AQI
30AQI
12th September 2025
30AQI
30AQI
13th September 2025
27AQI
27AQI
14th September 2025
39AQI
39AQI
15th September 2025
33AQI
33AQI
16th September 2025
44AQI
44AQI
17th September 2025
49AQI
49AQI
18th September 2025
39AQI
39AQI
19th September 2025
33AQI
33AQI
20th September 2025
37AQI
37AQI
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
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
27AQI
30AQI
30AQI
19AQI
20AQI
21AQI
47AQI
47AQI
35AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202531AQI
31
28
29
2
30
31
30
19
12
20
11
20
238
25
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
April19AQI
202429AQI
31
29
30
1
30
31
29
1
31
30
1
30
31
30
31
363
3
Highest AQI recorded in
April36AQI
Lowest AQI recorded in
January24AQI
202327AQI
31
28
31
30
30
1
29
1
31
31
30
31
29
31
362
2
Highest AQI recorded in
April36AQI
Lowest AQI recorded in
August20AQI
202227AQI
31
21
31
29
30
1
30
21
1
27
1
31
30
31
313
2
Highest AQI recorded in
May36AQI
Lowest AQI recorded in
August12AQI
202124AQI
31
28
31
28
2
29
2
28
2
31
31
30
31
30
31
359
6
Highest AQI recorded in
June35AQI
Lowest AQI recorded in
January12AQI
202014AQI
13
21
18
30
31
31
19
31
30
31
255
Highest AQI recorded in
August21AQI
Lowest AQI recorded in
December11AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
31AQILeast Polluted Year Recorded
2020(Avg.)
14AQISeto's annual 2025 AQI (31) shows an average percentage change of 35.8% (worsened AQI) compared to previous years: 2020 (14), 2021 (24), 2022 (27), 2023 (27), 2024 (29).
