Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Osaka Prefecture, Sayama, Osaka, 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

Osaka Prefecture, Sayama, Osaka, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
3rd Aug 2024
64AQI
Lowest AQI recorded on
13th Aug 2021
11AQI

Same Day Analysis (13th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 39 of Good air quality, showing improvement over 2024 and 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 13th Aug - 14th Aug 2025

Osaka Prefecture, Sayama, Osaka, Japan

AQI
Day
Night
.

5 AM13th Aug 2025

7 PM

4 AM14th Aug 2025

Day time
Avg. Highest Time
4PM13th Aug

55AQI

Avg. Lowest Time
10AM13th Aug

29AQI

Night time
Avg. Highest Time
7PM13th Aug

51AQI

Avg. Lowest Time
2AM14th Aug

36AQI

In the last 24 hours,

Osaka Prefecture's AQI reached its highest point of 55 at 4 PM during the Day, while the lowest point, 29, was recorded at 10 AM during the Day between 13th Aug and 14th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Osaka Prefecture, Sayama, Osaka, Japan

JulAug
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
15th Jul 2025565 AMAQI
15th Jul 2025566 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025578 AMAQI
15th Jul 2025269 AMAQI
15th Jul 20251610 AMAQI
15th Jul 20251911 AMAQI
15th Jul 20252412 PMAQI
15th Jul 2025261 PMAQI
15th Jul 2025292 PMAQI
15th Jul 2025293 PMAQI
15th Jul 2025264 PMAQI
15th Jul 2025285 PMAQI
15th Jul 2025386 PMAQI
15th Jul 2025437 PMAQI
15th Jul 2025578 PMAQI
15th Jul 2025609 PMAQI
15th Jul 20256110 PMAQI
15th Jul 20256111 PMAQI
16th Jul 20255812 AMAQI
16th Jul 2025571 AMAQI
16th Jul 2025562 AMAQI
16th Jul 2025573 AMAQI
16th Jul 2025564 AMAQI

29°C24/34°C

16th Jul 2025545 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025547 AMAQI
16th Jul 2025538 AMAQI
16th Jul 2025549 AMAQI
16th Jul 20256310 AMAQI
16th Jul 20255011 AMAQI
16th Jul 20254812 PMAQI
16th Jul 2025501 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025553 PMAQI
16th Jul 2025564 PMAQI
16th Jul 2025485 PMAQI
16th Jul 2025476 PMAQI
16th Jul 2025487 PMAQI
16th Jul 2025528 PMAQI
16th Jul 2025529 PMAQI
16th Jul 20255210 PMAQI
16th Jul 20255211 PMAQI
17th Jul 20255212 AMAQI
17th Jul 2025541 AMAQI
17th Jul 2025562 AMAQI
17th Jul 2025563 AMAQI
17th Jul 2025564 AMAQI

29°C25/34°C

17th Jul 2025555 AMAQI
17th Jul 2025556 AMAQI
17th Jul 2025557 AMAQI
17th Jul 2025558 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20251910 AMAQI
17th Jul 20253111 AMAQI
17th Jul 20251412 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025222 PMAQI
17th Jul 2025203 PMAQI
17th Jul 2025184 PMAQI
17th Jul 2025185 PMAQI
17th Jul 2025186 PMAQI
17th Jul 2025177 PMAQI
17th Jul 2025248 PMAQI
17th Jul 2025419 PMAQI
17th Jul 20254210 PMAQI
17th Jul 20254211 PMAQI
18th Jul 20254412 AMAQI
18th Jul 2025531 AMAQI
18th Jul 2025542 AMAQI
18th Jul 2025553 AMAQI
18th Jul 2025544 AMAQI

25°C24/28°C

18th Jul 2025525 AMAQI
18th Jul 2025526 AMAQI
18th Jul 2025527 AMAQI
18th Jul 2025528 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252210 AMAQI
18th Jul 20251911 AMAQI
18th Jul 20252312 PMAQI
18th Jul 2025261 PMAQI
18th Jul 2025262 PMAQI
18th Jul 2025373 PMAQI
18th Jul 2025364 PMAQI
18th Jul 2025315 PMAQI
18th Jul 2025266 PMAQI
18th Jul 2025217 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025399 PMAQI
18th Jul 20253910 PMAQI
18th Jul 20253911 PMAQI
19th Jul 20254212 AMAQI
19th Jul 2025521 AMAQI
19th Jul 2025532 AMAQI
19th Jul 2025533 AMAQI
19th Jul 2025524 AMAQI

28°C23/33°C

19th Jul 2025495 AMAQI
19th Jul 2025506 AMAQI
19th Jul 2025497 AMAQI
19th Jul 2025508 AMAQI
19th Jul 2025259 AMAQI
19th Jul 20251910 AMAQI
19th Jul 20251811 AMAQI
19th Jul 20251712 PMAQI
19th Jul 2025201 PMAQI
19th Jul 2025222 PMAQI
19th Jul 2025273 PMAQI
19th Jul 2025274 PMAQI
19th Jul 2025205 PMAQI
19th Jul 2025236 PMAQI
19th Jul 2025237 PMAQI
19th Jul 2025278 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253810 PMAQI
19th Jul 20253611 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025501 AMAQI
20th Jul 2025502 AMAQI
20th Jul 2025503 AMAQI
20th Jul 2025494 AMAQI

28°C24/33°C

20th Jul 2025455 AMAQI
20th Jul 2025456 AMAQI
20th Jul 2025457 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025319 AMAQI
20th Jul 20252010 AMAQI
20th Jul 20252111 AMAQI
20th Jul 20252112 PMAQI
20th Jul 2025221 PMAQI
20th Jul 2025232 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025214 PMAQI
20th Jul 2025225 PMAQI
20th Jul 2025216 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025258 PMAQI
20th Jul 2025339 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253012 AMAQI
21st Jul 2025451 AMAQI
21st Jul 2025462 AMAQI
21st Jul 2025463 AMAQI
21st Jul 2025454 AMAQI

29°C25/33°C

21st Jul 2025425 AMAQI
21st Jul 2025436 AMAQI
21st Jul 2025427 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252310 AMAQI
21st Jul 20252611 AMAQI
21st Jul 20253012 PMAQI
21st Jul 2025331 PMAQI
21st Jul 2025252 PMAQI
21st Jul 2025223 PMAQI
21st Jul 2025194 PMAQI
21st Jul 2025175 PMAQI
21st Jul 2025186 PMAQI
21st Jul 2025157 PMAQI
21st Jul 2025208 PMAQI
21st Jul 2025309 PMAQI
21st Jul 20253210 PMAQI
21st Jul 20253211 PMAQI
22nd Jul 20253312 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025422 AMAQI
22nd Jul 2025423 AMAQI
22nd Jul 2025414 AMAQI

29°C26/32°C

22nd Jul 2025405 AMAQI
22nd Jul 2025396 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025398 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20253011 AMAQI
22nd Jul 20253112 PMAQI
22nd Jul 2025401 PMAQI
22nd Jul 2025412 PMAQI
22nd Jul 2025513 PMAQI
22nd Jul 2025504 PMAQI
22nd Jul 2025485 PMAQI
22nd Jul 2025406 PMAQI
22nd Jul 2025357 PMAQI
22nd Jul 2025258 PMAQI
22nd Jul 2025309 PMAQI
22nd Jul 20253010 PMAQI
22nd Jul 20252911 PMAQI
23rd Jul 20252912 AMAQI
23rd Jul 2025381 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025403 AMAQI
23rd Jul 2025394 AMAQI

29°C26/33°C

23rd Jul 2025395 AMAQI
23rd Jul 2025396 AMAQI
23rd Jul 2025387 AMAQI
23rd Jul 2025398 AMAQI
23rd Jul 2025279 AMAQI
23rd Jul 20252510 AMAQI
23rd Jul 20252511 AMAQI
23rd Jul 20253012 PMAQI
23rd Jul 2025441 PMAQI
23rd Jul 2025522 PMAQI
23rd Jul 2025543 PMAQI
23rd Jul 2025554 PMAQI
23rd Jul 2025545 PMAQI
23rd Jul 2025496 PMAQI
23rd Jul 2025367 PMAQI
23rd Jul 2025348 PMAQI
23rd Jul 2025339 PMAQI
23rd Jul 20253210 PMAQI
23rd Jul 20253211 PMAQI
24th Jul 20252912 AMAQI
24th Jul 2025341 AMAQI
24th Jul 2025382 AMAQI
24th Jul 2025383 AMAQI
24th Jul 2025384 AMAQI

30°C26/34°C

24th Jul 2025385 AMAQI
24th Jul 2025396 AMAQI
24th Jul 2025387 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025309 AMAQI
24th Jul 20253810 AMAQI
24th Jul 20253511 AMAQI
24th Jul 20254412 PMAQI
24th Jul 2025501 PMAQI
24th Jul 2025552 PMAQI
24th Jul 2025493 PMAQI
24th Jul 2025424 PMAQI
24th Jul 2025355 PMAQI
24th Jul 2025276 PMAQI
24th Jul 2025247 PMAQI
24th Jul 2025248 PMAQI
24th Jul 2025279 PMAQI
24th Jul 20252810 PMAQI
24th Jul 20252711 PMAQI
25th Jul 20252612 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025372 AMAQI
25th Jul 2025383 AMAQI
25th Jul 2025384 AMAQI

30°C26/34°C

25th Jul 2025395 AMAQI
25th Jul 2025396 AMAQI
25th Jul 2025407 AMAQI
25th Jul 2025408 AMAQI
25th Jul 2025319 AMAQI
25th Jul 20253910 AMAQI
25th Jul 20253611 AMAQI
25th Jul 20253612 PMAQI
25th Jul 2025371 PMAQI
25th Jul 2025362 PMAQI
25th Jul 2025263 PMAQI
25th Jul 2025224 PMAQI
25th Jul 2025205 PMAQI
25th Jul 2025206 PMAQI
25th Jul 2025187 PMAQI
25th Jul 2025248 PMAQI
25th Jul 2025299 PMAQI
25th Jul 20252810 PMAQI
25th Jul 20252811 PMAQI
26th Jul 20252812 AMAQI
26th Jul 2025321 AMAQI
26th Jul 2025362 AMAQI
26th Jul 2025373 AMAQI
26th Jul 2025374 AMAQI

30°C26/34°C

26th Jul 2025365 AMAQI
26th Jul 2025376 AMAQI
26th Jul 2025377 AMAQI
26th Jul 2025378 AMAQI
26th Jul 2025239 AMAQI
26th Jul 20252210 AMAQI
26th Jul 20251811 AMAQI
26th Jul 20251912 PMAQI
26th Jul 2025211 PMAQI
26th Jul 2025202 PMAQI
26th Jul 2025293 PMAQI
26th Jul 2025284 PMAQI
26th Jul 2025265 PMAQI
26th Jul 2025246 PMAQI
26th Jul 2025277 PMAQI
26th Jul 2025308 PMAQI
26th Jul 2025309 PMAQI
26th Jul 20253210 PMAQI
26th Jul 20253011 PMAQI
27th Jul 20252912 AMAQI
27th Jul 2025351 AMAQI
27th Jul 2025362 AMAQI
27th Jul 2025363 AMAQI
27th Jul 2025354 AMAQI

29°C25/34°C

27th Jul 2025325 AMAQI
27th Jul 2025326 AMAQI
27th Jul 2025337 AMAQI
27th Jul 2025338 AMAQI
27th Jul 2025279 AMAQI
27th Jul 20252510 AMAQI
27th Jul 20251711 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025191 PMAQI
27th Jul 2025192 PMAQI
27th Jul 2025213 PMAQI
27th Jul 2025234 PMAQI
27th Jul 2025215 PMAQI
27th Jul 2025226 PMAQI
27th Jul 2025227 PMAQI
27th Jul 2025238 PMAQI
27th Jul 2025249 PMAQI
27th Jul 20252410 PMAQI
27th Jul 20252411 PMAQI
28th Jul 20252512 AMAQI
28th Jul 2025301 AMAQI
28th Jul 2025332 AMAQI
28th Jul 2025323 AMAQI
28th Jul 2025324 AMAQI

29°C25/34°C

28th Jul 2025325 AMAQI
28th Jul 2025326 AMAQI
28th Jul 2025317 AMAQI
28th Jul 2025328 AMAQI
28th Jul 2025229 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20252911 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025402 PMAQI
28th Jul 2025463 PMAQI
28th Jul 2025514 PMAQI
28th Jul 2025505 PMAQI
28th Jul 2025496 PMAQI
28th Jul 2025387 PMAQI
28th Jul 2025288 PMAQI
28th Jul 2025289 PMAQI
28th Jul 20252810 PMAQI
28th Jul 20252711 PMAQI
29th Jul 20252912 AMAQI
29th Jul 2025311 AMAQI
29th Jul 2025312 AMAQI
29th Jul 2025323 AMAQI
29th Jul 2025324 AMAQI

30°C26/34°C

29th Jul 2025325 AMAQI
29th Jul 2025326 AMAQI
29th Jul 2025327 AMAQI
29th Jul 2025328 AMAQI
29th Jul 2025289 AMAQI
29th Jul 20253410 AMAQI
29th Jul 20253211 AMAQI
29th Jul 20254412 PMAQI
29th Jul 2025521 PMAQI
29th Jul 2025532 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025544 PMAQI
29th Jul 2025605 PMAQI
29th Jul 2025566 PMAQI
29th Jul 2025527 PMAQI
29th Jul 2025468 PMAQI
29th Jul 2025389 PMAQI
29th Jul 20253510 PMAQI
29th Jul 20253611 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025322 AMAQI
30th Jul 2025323 AMAQI
30th Jul 2025334 AMAQI

31°C26/36°C

30th Jul 2025355 AMAQI
30th Jul 2025346 AMAQI
30th Jul 2025347 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025419 AMAQI
30th Jul 20254410 AMAQI
30th Jul 20254411 AMAQI
30th Jul 20255112 PMAQI
30th Jul 2025551 PMAQI
30th Jul 2025612 PMAQI
30th Jul 2025703 PMAQI
30th Jul 2025644 PMAQI
30th Jul 2025625 PMAQI
30th Jul 2025556 PMAQI
30th Jul 2025507 PMAQI
30th Jul 2025388 PMAQI
30th Jul 2025379 PMAQI
30th Jul 20254410 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20253612 AMAQI
31st Jul 2025341 AMAQI
31st Jul 2025342 AMAQI
31st Jul 2025343 AMAQI
31st Jul 2025334 AMAQI

30°C27/35°C

31st Jul 2025335 AMAQI
31st Jul 2025336 AMAQI
31st Jul 2025337 AMAQI
31st Jul 2025338 AMAQI
31st Jul 2025339 AMAQI
31st Jul 20253310 AMAQI
31st Jul 20254411 AMAQI
31st Jul 20255012 PMAQI
31st Jul 2025541 PMAQI
31st Jul 2025562 PMAQI
31st Jul 2025593 PMAQI
31st Jul 2025624 PMAQI
31st Jul 2025655 PMAQI
31st Jul 2025626 PMAQI
31st Jul 2025597 PMAQI
31st Jul 2025468 PMAQI
31st Jul 2025409 PMAQI
31st Jul 20253810 PMAQI
31st Jul 20253211 PMAQI
1st Aug 20253212 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025292 AMAQI
1st Aug 2025293 AMAQI
1st Aug 2025334 AMAQI

30°C27/35°C

1st Aug 2025335 AMAQI
1st Aug 2025336 AMAQI
1st Aug 2025347 AMAQI
1st Aug 2025368 AMAQI
1st Aug 2025469 AMAQI
1st Aug 20254610 AMAQI
1st Aug 20255011 AMAQI
1st Aug 20255112 PMAQI
1st Aug 2025501 PMAQI
1st Aug 2025612 PMAQI
1st Aug 2025643 PMAQI
1st Aug 2025634 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025616 PMAQI
1st Aug 2025607 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025509 PMAQI
1st Aug 20254410 PMAQI
1st Aug 20254411 PMAQI
2nd Aug 20254012 AMAQI
2nd Aug 2025341 AMAQI
2nd Aug 2025342 AMAQI
2nd Aug 2025343 AMAQI
2nd Aug 2025374 AMAQI

30°C27/34°C

2nd Aug 2025395 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025519 AMAQI
2nd Aug 20254810 AMAQI
2nd Aug 20255311 AMAQI
2nd Aug 20255212 PMAQI
2nd Aug 2025551 PMAQI
2nd Aug 2025582 PMAQI
2nd Aug 2025583 PMAQI
2nd Aug 2025604 PMAQI
2nd Aug 2025585 PMAQI
2nd Aug 2025556 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025498 PMAQI
2nd Aug 2025429 PMAQI
2nd Aug 20253810 PMAQI
2nd Aug 20254211 PMAQI
3rd Aug 20254612 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025404 AMAQI

31°C27/36°C

3rd Aug 2025435 AMAQI
3rd Aug 2025416 AMAQI
3rd Aug 2025417 AMAQI
3rd Aug 2025418 AMAQI
3rd Aug 2025489 AMAQI
3rd Aug 20255510 AMAQI
3rd Aug 20255511 AMAQI
3rd Aug 20255812 PMAQI
3rd Aug 2025551 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025553 PMAQI
3rd Aug 2025594 PMAQI
3rd Aug 2025565 PMAQI
3rd Aug 2025556 PMAQI
3rd Aug 2025567 PMAQI
3rd Aug 2025538 PMAQI
3rd Aug 2025499 PMAQI
3rd Aug 20255010 PMAQI
3rd Aug 20254611 PMAQI
4th Aug 20254812 AMAQI
4th Aug 2025421 AMAQI
4th Aug 2025412 AMAQI
4th Aug 2025403 AMAQI
4th Aug 2025444 AMAQI

31°C27/35°C

4th Aug 2025465 AMAQI
4th Aug 2025466 AMAQI
4th Aug 2025467 AMAQI
4th Aug 2025458 AMAQI
4th Aug 2025689 AMAQI
4th Aug 20257810 AMAQI
4th Aug 20259211 AMAQI
4th Aug 20258612 PMAQI
4th Aug 2025891 PMAQI
4th Aug 2025862 PMAQI
4th Aug 2025853 PMAQI
4th Aug 2025784 PMAQI
4th Aug 2025795 PMAQI
4th Aug 2025746 PMAQI
4th Aug 2025657 PMAQI
4th Aug 2025618 PMAQI
4th Aug 2025579 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255111 PMAQI
5th Aug 20255312 AMAQI
5th Aug 2025461 AMAQI
5th Aug 2025432 AMAQI
5th Aug 2025423 AMAQI
5th Aug 2025524 AMAQI

31°C27/36°C

5th Aug 2025565 AMAQI
5th Aug 2025556 AMAQI
5th Aug 2025557 AMAQI
5th Aug 2025558 AMAQI
5th Aug 2025539 AMAQI
5th Aug 20255710 AMAQI
5th Aug 20255411 AMAQI
5th Aug 20255012 PMAQI
5th Aug 2025571 PMAQI
5th Aug 2025532 PMAQI
5th Aug 2025483 PMAQI
5th Aug 2025514 PMAQI
5th Aug 2025495 PMAQI
5th Aug 2025446 PMAQI
5th Aug 2025527 PMAQI
5th Aug 2025528 PMAQI
5th Aug 2025519 PMAQI
5th Aug 20255010 PMAQI
5th Aug 20254711 PMAQI
6th Aug 20255112 AMAQI
6th Aug 2025521 AMAQI
6th Aug 2025522 AMAQI
6th Aug 2025503 AMAQI
6th Aug 2025524 AMAQI

31°C27/35°C

6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025459 AMAQI
6th Aug 20254510 AMAQI
6th Aug 20255311 AMAQI
6th Aug 20255212 PMAQI
6th Aug 2025531 PMAQI
6th Aug 2025462 PMAQI
6th Aug 2025453 PMAQI
6th Aug 2025524 PMAQI
6th Aug 2025575 PMAQI
6th Aug 2025556 PMAQI
6th Aug 2025587 PMAQI
6th Aug 2025588 PMAQI
6th Aug 2025589 PMAQI
6th Aug 20255810 PMAQI
6th Aug 20255711 PMAQI
7th Aug 20255412 AMAQI
7th Aug 2025511 AMAQI
7th Aug 2025522 AMAQI
7th Aug 2025523 AMAQI
7th Aug 2025524 AMAQI

31°C28/35°C

7th Aug 2025515 AMAQI
7th Aug 2025506 AMAQI
7th Aug 2025497 AMAQI
7th Aug 2025518 AMAQI
7th Aug 2025569 AMAQI
7th Aug 20255310 AMAQI
7th Aug 20255211 AMAQI
7th Aug 20254612 PMAQI
7th Aug 2025391 PMAQI
7th Aug 2025342 PMAQI
7th Aug 2025283 PMAQI
7th Aug 2025294 PMAQI
7th Aug 2025265 PMAQI
7th Aug 2025286 PMAQI
7th Aug 2025367 PMAQI
7th Aug 2025408 PMAQI
7th Aug 2025449 PMAQI
7th Aug 20254210 PMAQI
7th Aug 20254411 PMAQI
8th Aug 20254412 AMAQI
8th Aug 2025501 AMAQI
8th Aug 2025522 AMAQI
8th Aug 2025523 AMAQI
8th Aug 2025524 AMAQI

28°C26/32°C

8th Aug 2025515 AMAQI
8th Aug 2025516 AMAQI
8th Aug 2025517 AMAQI
8th Aug 2025518 AMAQI
8th Aug 2025389 AMAQI
8th Aug 20253710 AMAQI
8th Aug 20254511 AMAQI
8th Aug 20254212 PMAQI
8th Aug 2025411 PMAQI
8th Aug 2025402 PMAQI
8th Aug 2025373 PMAQI
8th Aug 2025404 PMAQI
8th Aug 2025465 PMAQI
8th Aug 2025516 PMAQI
8th Aug 2025477 PMAQI
8th Aug 2025448 PMAQI
8th Aug 2025449 PMAQI
8th Aug 20254410 PMAQI
8th Aug 20254211 PMAQI
9th Aug 20254412 AMAQI
9th Aug 2025501 AMAQI
9th Aug 2025512 AMAQI
9th Aug 2025513 AMAQI
9th Aug 2025504 AMAQI

28°C25/32°C

9th Aug 2025495 AMAQI
9th Aug 2025506 AMAQI
9th Aug 2025497 AMAQI
9th Aug 2025508 AMAQI
9th Aug 2025399 AMAQI
9th Aug 20255010 AMAQI
9th Aug 20255211 AMAQI
9th Aug 20255212 PMAQI
9th Aug 2025561 PMAQI
9th Aug 2025552 PMAQI
9th Aug 2025533 PMAQI
9th Aug 2025504 PMAQI
9th Aug 2025545 PMAQI
9th Aug 2025536 PMAQI
9th Aug 2025527 PMAQI
9th Aug 2025448 PMAQI
9th Aug 2025479 PMAQI
9th Aug 20254410 PMAQI
9th Aug 20254411 PMAQI
10th Aug 20254212 AMAQI
10th Aug 2025481 AMAQI
10th Aug 2025502 AMAQI
10th Aug 2025493 AMAQI
10th Aug 2025504 AMAQI

27°C25/30°C

10th Aug 2025515 AMAQI
10th Aug 2025516 AMAQI
10th Aug 2025517 AMAQI
10th Aug 2025518 AMAQI
10th Aug 2025359 AMAQI
10th Aug 20252010 AMAQI
10th Aug 20252611 AMAQI
10th Aug 20253012 PMAQI
10th Aug 2025321 PMAQI
10th Aug 2025302 PMAQI
10th Aug 2025433 PMAQI
10th Aug 2025614 PMAQI
10th Aug 2025555 PMAQI
10th Aug 2025526 PMAQI
10th Aug 2025497 PMAQI
10th Aug 2025518 PMAQI
10th Aug 2025479 PMAQI
10th Aug 20254210 PMAQI
10th Aug 20253511 PMAQI
11th Aug 20254012 AMAQI
11th Aug 2025491 AMAQI
11th Aug 2025502 AMAQI
11th Aug 2025503 AMAQI
11th Aug 2025494 AMAQI

26°C24/26°C

11th Aug 2025465 AMAQI
11th Aug 2025456 AMAQI
11th Aug 2025467 AMAQI
11th Aug 2025468 AMAQI
11th Aug 2025259 AMAQI
11th Aug 20252510 AMAQI
11th Aug 20252511 AMAQI
11th Aug 20252512 PMAQI
11th Aug 2025371 PMAQI
11th Aug 2025362 PMAQI
11th Aug 2025283 PMAQI
11th Aug 2025274 PMAQI
11th Aug 2025265 PMAQI
11th Aug 2025406 PMAQI
11th Aug 2025287 PMAQI
11th Aug 2025328 PMAQI
11th Aug 2025349 PMAQI
11th Aug 20253510 PMAQI
11th Aug 20253411 PMAQI
12th Aug 20253812 AMAQI
12th Aug 2025431 AMAQI
12th Aug 2025452 AMAQI
12th Aug 2025443 AMAQI
12th Aug 2025424 AMAQI

27°C26/30°C

12th Aug 2025405 AMAQI
12th Aug 2025396 AMAQI
12th Aug 2025397 AMAQI
12th Aug 2025418 AMAQI
12th Aug 2025279 AMAQI
12th Aug 20253010 AMAQI
12th Aug 20254011 AMAQI
12th Aug 20252912 PMAQI
12th Aug 2025281 PMAQI
12th Aug 2025302 PMAQI
12th Aug 2025323 PMAQI
12th Aug 2025334 PMAQI
12th Aug 2025285 PMAQI
12th Aug 2025366 PMAQI
12th Aug 2025337 PMAQI
12th Aug 2025358 PMAQI
12th Aug 2025379 PMAQI
12th Aug 20253510 PMAQI
12th Aug 20253411 PMAQI
13th Aug 20253612 AMAQI
13th Aug 2025381 AMAQI
13th Aug 2025402 AMAQI
13th Aug 2025383 AMAQI
13th Aug 2025384 AMAQI

26°C24/27°C

13th Aug 2025385 AMAQI
13th Aug 2025386 AMAQI
13th Aug 2025387 AMAQI
13th Aug 2025388 AMAQI
13th Aug 2025329 AMAQI
13th Aug 20252910 AMAQI
13th Aug 20253511 AMAQI
13th Aug 20254212 PMAQI
13th Aug 2025401 PMAQI
13th Aug 2025462 PMAQI
13th Aug 2025483 PMAQI
13th Aug 2025554 PMAQI
13th Aug 2025505 PMAQI
13th Aug 2025506 PMAQI
13th Aug 2025517 PMAQI
13th Aug 2025388 PMAQI
13th Aug 2025379 PMAQI
13th Aug 20253610 PMAQI
13th Aug 20253711 PMAQI
14th Aug 20253812 AMAQI
14th Aug 2025381 AMAQI
14th Aug 2025362 AMAQI
14th Aug 2025383 AMAQI
14th Aug 2025384 AMAQI

29°C25/33°C

14th Aug 2025385 AMAQI
5 AM
14th Aug 2025386 AMAQI
14th Aug 2025387 AMAQI
14th Aug 2025388 AMAQI
14th Aug 2025329 AMAQI
14th Aug 20254610 AMAQI
14th Aug 20255211 AMAQI
14th Aug 20255512 PMAQI
12 PM
14th Aug 2025541 PMAQI
14th Aug 2025562 PMAQI
14th Aug 2025553 PMAQI
14th Aug 2025554 PMAQI
14th Aug 2025565 PMAQI
14th Aug 2025536 PMAQI
7 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
1 PM - 7 PM

43AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
9 AM - 10 AM

36AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 7 PM (Avg. 43), while the lowest AQI was between 9 AM to 10 AM (Avg. 36).
Night time
Avg. Highest Time
1 AM - 4 AM

43AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM

39AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 43), while the lowest AQI was between 12 AM to 12 AM (Avg. 39).

2025 Days Vs Air Quality

Osaka Prefecture, Sayama, Osaka, Japan

2025

72%

162

28%

63

Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)

Good
162 Days
Moderate
63 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 72%

Health Risk Level:

Low

In 2025, 72% of 226 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

Osaka Prefecture, Sayama, Osaka, 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
30AQI
2nd January 2025
36AQI
3rd January 2025
31AQI
4th January 2025
32AQI
5th January 2025
33AQI
6th January 2025
41AQI
7th January 2025
32AQI
8th January 2025
33AQI
9th January 2025
31AQI
10th January 2025
26AQI
11th January 2025
28AQI
12th January 2025
37AQI
13th January 2025
40AQI
14th January 2025
50AQI
15th January 2025
46AQI
16th January 2025
39AQI
17th January 2025
35AQI
18th January 2025
36AQI
19th January 2025
37AQI
20th January 2025
46AQI
21st January 2025
41AQI
22nd January 2025
55AQI
23rd January 2025
69AQI
24th January 2025
65AQI
25th January 2025
46AQI
26th January 2025
40AQI
27th January 2025
47AQI
28th January 2025
37AQI
29th January 2025
37AQI
30th January 2025
40AQI
31st January 2025
68AQI
1st February 2025
66AQI
2nd February 2025
46AQI
3rd February 2025
49AQI
4th February 2025
40AQI
5th February 2025
40AQI
6th February 2025
33AQI
7th February 2025
35AQI
8th February 2025
31AQI
9th February 2025
30AQI
10th February 2025
31AQI
11th February 2025
30AQI
12th February 2025
48AQI
13th February 2025
30AQI
14th February 2025
48AQI
15th February 2025
29AQI
16th February 2025
57AQI
17th February 2025
37AQI
18th February 2025
39AQI
19th February 2025
31AQI
20th February 2025
30AQI
21st February 2025
29AQI
22nd February 2025
35AQI
23rd February 2025
35AQI
24th February 2025
33AQI
25th February 2025
37AQI
26th February 2025
38AQI
27th February 2025
62AQI
28th February 2025
67AQI
1st March 2025
76AQI
2nd March 2025
100AQI
3rd March 2025
50AQI
4th March 2025
48AQI
5th March 2025
37AQI
6th March 2025
41AQI
7th March 2025
35AQI
8th March 2025
39AQI
9th March 2025
37AQI
10th March 2025
44AQI
11th March 2025
34AQI
12th March 2025
44AQI
13th March 2025
50AQI
14th March 2025
45AQI
15th March 2025
38AQI
16th March 2025
26AQI
17th March 2025
39AQI
18th March 2025
30AQI
19th March 2025
28AQI
20th March 2025
43AQI
21st March 2025
55AQI
22nd March 2025
60AQI
23rd March 2025
65AQI
24th March 2025
70AQI
25th March 2025
71AQI
26th March 2025
79AQI
27th March 2025
54AQI
28th March 2025
44AQI
29th March 2025
40AQI
30th March 2025
34AQI
31st March 2025
38AQI
1st April 2025
32AQI
2nd April 2025
45AQI
3rd April 2025
24AQI
4th April 2025
30AQI
5th April 2025
39AQI
6th April 2025
40AQI
7th April 2025
48AQI
8th April 2025
47AQI
9th April 2025
54AQI
10th April 2025
55AQI
11th April 2025
52AQI
12th April 2025
54AQI
13th April 2025
34AQI
14th April 2025
48AQI
15th April 2025
25AQI
16th April 2025
43AQI
17th April 2025
48AQI
18th April 2025
55AQI
19th April 2025
58AQI
20th April 2025
46AQI
21st April 2025
44AQI
22nd April 2025
49AQI
23rd April 2025
36AQI
24th April 2025
33AQI
25th April 2025
61AQI
26th April 2025
55AQI
27th April 2025
59AQI
28th April 2025
46AQI
29th April 2025
52AQI
30th April 2025
63AQI
1st May 2025
57AQI
2nd May 2025
41AQI
3rd May 2025
48AQI
4th May 2025
39AQI
5th May 2025
44AQI
6th May 2025
25AQI
7th May 2025
31AQI
8th May 2025
29AQI
9th May 2025
33AQI
10th May 2025
29AQI
11th May 2025
31AQI
12th May 2025
49AQI
13th May 2025
53AQI
14th May 2025
57AQI
15th May 2025
54AQI
16th May 2025
53AQI
17th May 2025
43AQI
18th May 2025
53AQI
19th May 2025
54AQI
20th May 2025
61AQI
21st May 2025
41AQI
22nd May 2025
37AQI
23rd May 2025
50AQI
24th May 2025
32AQI
25th May 2025
26AQI
26th May 2025
29AQI
27th May 2025
29AQI
28th May 2025
31AQI
29th May 2025
39AQI
30th May 2025
32AQI
31st May 2025
36AQI
1st June 2025
42AQI
2nd June 2025
48AQI
3rd June 2025
28AQI
4th June 2025
45AQI
5th June 2025
44AQI
6th June 2025
47AQI
7th June 2025
52AQI
8th June 2025
63AQI
9th June 2025
42AQI
10th June 2025
37AQI
11th June 2025
37AQI
12th June 2025
49AQI
13th June 2025
52AQI
14th June 2025
34AQI
15th June 2025
30AQI
16th June 2025
40AQI
17th June 2025
35AQI
18th June 2025
48AQI
19th June 2025
51AQI
20th June 2025
57AQI
21st June 2025
53AQI
22nd June 2025
52AQI
23rd June 2025
42AQI
24th June 2025
38AQI
25th June 2025
37AQI
26th June 2025
36AQI
27th June 2025
52AQI
28th June 2025
51AQI
29th June 2025
52AQI
30th June 2025
56AQI
1st July 2025
60AQI
2nd July 2025
78AQI
3rd July 2025
78AQI
4th July 2025
97AQI
5th July 2025
83AQI
6th July 2025
71AQI
7th July 2025
69AQI
8th July 2025
72AQI
9th July 2025
78AQI
10th July 2025
60AQI
11th July 2025
52AQI
12th July 2025
53AQI
13th July 2025
50AQI
14th July 2025
41AQI
15th July 2025
46AQI
16th July 2025
53AQI
17th July 2025
37AQI
18th July 2025
38AQI
19th July 2025
35AQI
20th July 2025
34AQI
21st July 2025
31AQI
22nd July 2025
37AQI
23rd July 2025
38AQI
24th July 2025
35AQI
25th July 2025
31AQI
26th July 2025
29AQI
27th July 2025
27AQI
28th July 2025
33AQI
29th July 2025
40AQI
30th July 2025
43AQI
31st July 2025
43AQI
1st August 2025
45AQI
2nd August 2025
46AQI
3rd August 2025
49AQI
4th August 2025
61AQI
5th August 2025
51AQI
6th August 2025
53AQI
7th August 2025
44AQI
8th August 2025
46AQI
9th August 2025
49AQI
10th August 2025
44AQI
11th August 2025
37AQI
12th August 2025
36AQI
13th August 2025
39AQI

41AQI

40AQI

48AQI

46AQI

41AQI

45AQI

51AQI

46AQI

No. of days

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

202545AQI

27
4
24
4
22
9
19
11
23
8
19
11
18
13
10
3
162
63

Highest AQI recorded in

July

51AQI

Lowest AQI recorded in

February

40AQI

202437AQI

26
5
27
2
25
6
21
8
1
28
3
26
4
28
3
25
6
27
3
31
29
1
31
324
41
1

Highest AQI recorded in

April

49AQI

Lowest AQI recorded in

December

32AQI

202340AQI

24
7
20
8
18
13
19
11
26
5
20
10
25
6
30
1
29
1
29
2
22
6
23
8
285
78

Highest AQI recorded in

April

47AQI

Lowest AQI recorded in

August

27AQI

202240AQI

21
2
18
3
17
13
21
9
17
14
25
5
17
4
1
26
2
29
2
21
9
28
3
241
66

Highest AQI recorded in

March

49AQI

Lowest AQI recorded in

August

23AQI

202140AQI

21
9
19
9
21
9
1
25
5
22
9
23
7
29
2
27
4
27
3
31
23
7
26
5
294
69
1

Highest AQI recorded in

March

46AQI

Lowest AQI recorded in

August

31AQI

202042AQI

7
6
13
8
15
3
24
6
28
3
10
21
17
2
25
6
19
11
18
13
176
79

Highest AQI recorded in

August

58AQI

Lowest AQI recorded in

July

33AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
45AQI
Least Polluted Year Recorded
2024(Avg.)
37AQI

Osaka Prefecture's annual 2025 AQI (45) shows an average percentage change of 12.2% (worsened AQI) compared to previous years: 2020 (42), 2021 (40), 2022 (40), 2023 (40), 2024 (37).