Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Saijo, Ehime, 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

Saijo, Ehime, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Aug 2021
71AQI
Lowest AQI recorded on
30th Aug 2024
19AQI

Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 45 of Good air quality, showing improvement over 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 20th Aug - 21st Aug 2025

Saijo, Ehime, Japan

AQI
Day
Night
.

5 AM20th Aug 2025

7 PM

4 AM21st Aug 2025

Day time
Avg. Highest Time
12PM20th Aug

58AQI

Avg. Lowest Time
6PM20th Aug

41AQI

Night time
Avg. Highest Time
4AM21st Aug

48AQI

Avg. Lowest Time
7PM20th Aug

36AQI

In the last 24 hours,

Saijo's AQI reached its highest point of 58 at 12 PM during the Day, while the lowest point, 36, was recorded at 7 PM during the Night between 20th Aug and 21st Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Saijo, Ehime, Japan

JulAug
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 Jul 2025425 AMAQI
22nd Jul 2025426 AMAQI
22nd Jul 2025427 AMAQI
22nd Jul 2025428 AMAQI
22nd Jul 2025289 AMAQI
22nd Jul 20252710 AMAQI
22nd Jul 20253011 AMAQI
22nd Jul 20253212 PMAQI
22nd Jul 2025311 PMAQI
22nd Jul 2025282 PMAQI
22nd Jul 2025323 PMAQI
22nd Jul 2025354 PMAQI
22nd Jul 2025305 PMAQI
22nd Jul 2025346 PMAQI
22nd Jul 2025397 PMAQI
22nd Jul 2025418 PMAQI
22nd Jul 2025429 PMAQI
22nd Jul 20254210 PMAQI
22nd Jul 20254211 PMAQI
23rd Jul 20254212 AMAQI
23rd Jul 2025421 AMAQI
23rd Jul 2025442 AMAQI
23rd Jul 2025423 AMAQI
23rd Jul 2025414 AMAQI

25°C19/30°C

23rd Jul 2025405 AMAQI
23rd Jul 2025406 AMAQI
23rd Jul 2025407 AMAQI
23rd Jul 2025408 AMAQI
23rd Jul 2025339 AMAQI
23rd Jul 20253210 AMAQI
23rd Jul 20254011 AMAQI
23rd Jul 20254012 PMAQI
23rd Jul 2025341 PMAQI
23rd Jul 2025342 PMAQI
23rd Jul 2025403 PMAQI
23rd Jul 2025464 PMAQI
23rd Jul 2025485 PMAQI
23rd Jul 2025526 PMAQI
23rd Jul 2025537 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025509 PMAQI
23rd Jul 20254910 PMAQI
23rd Jul 20255011 PMAQI
24th Jul 20255012 AMAQI
24th Jul 2025471 AMAQI
24th Jul 2025412 AMAQI
24th Jul 2025403 AMAQI
24th Jul 2025414 AMAQI

24°C19/30°C

24th Jul 2025405 AMAQI
24th Jul 2025406 AMAQI
24th Jul 2025407 AMAQI
24th Jul 2025398 AMAQI
24th Jul 2025299 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20254011 AMAQI
24th Jul 20254812 PMAQI
24th Jul 2025481 PMAQI
24th Jul 2025492 PMAQI
24th Jul 2025523 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025595 PMAQI
24th Jul 2025626 PMAQI
24th Jul 2025637 PMAQI
24th Jul 2025598 PMAQI
24th Jul 2025559 PMAQI
24th Jul 20255410 PMAQI
24th Jul 20255011 PMAQI
25th Jul 20254612 AMAQI
25th Jul 2025431 AMAQI
25th Jul 2025412 AMAQI
25th Jul 2025413 AMAQI
25th Jul 2025424 AMAQI

24°C19/29°C

25th Jul 2025425 AMAQI
25th Jul 2025426 AMAQI
25th Jul 2025427 AMAQI
25th Jul 2025428 AMAQI
25th Jul 2025329 AMAQI
25th Jul 20253410 AMAQI
25th Jul 20253711 AMAQI
25th Jul 20252812 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025282 PMAQI
25th Jul 2025303 PMAQI
25th Jul 2025324 PMAQI
25th Jul 2025285 PMAQI
25th Jul 2025246 PMAQI
25th Jul 2025247 PMAQI
25th Jul 2025308 PMAQI
25th Jul 2025349 PMAQI
25th Jul 20253210 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253012 AMAQI
26th Jul 2025341 AMAQI
26th Jul 2025422 AMAQI
26th Jul 2025423 AMAQI
26th Jul 2025404 AMAQI

25°C22/29°C

26th Jul 2025395 AMAQI
26th Jul 2025386 AMAQI
26th Jul 2025397 AMAQI
26th Jul 2025398 AMAQI
26th Jul 2025229 AMAQI
26th Jul 20251710 AMAQI
26th Jul 20252011 AMAQI
26th Jul 20252012 PMAQI
26th Jul 2025221 PMAQI
26th Jul 2025262 PMAQI
26th Jul 2025253 PMAQI
26th Jul 2025234 PMAQI
26th Jul 2025225 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025227 PMAQI
26th Jul 2025248 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252910 PMAQI
26th Jul 20252811 PMAQI
27th Jul 20252612 AMAQI
27th Jul 2025311 AMAQI
27th Jul 2025382 AMAQI
27th Jul 2025383 AMAQI
27th Jul 2025364 AMAQI

24°C20/28°C

27th Jul 2025345 AMAQI
27th Jul 2025346 AMAQI
27th Jul 2025357 AMAQI
27th Jul 2025348 AMAQI
27th Jul 2025259 AMAQI
27th Jul 20251710 AMAQI
27th Jul 20251911 AMAQI
27th Jul 20252112 PMAQI
27th Jul 2025251 PMAQI
27th Jul 2025242 PMAQI
27th Jul 2025233 PMAQI
27th Jul 2025264 PMAQI
27th Jul 2025275 PMAQI
27th Jul 2025286 PMAQI
27th Jul 2025287 PMAQI
27th Jul 2025308 PMAQI
27th Jul 2025319 PMAQI
27th Jul 20253010 PMAQI
27th Jul 20253011 PMAQI
28th Jul 20252912 AMAQI
28th Jul 2025321 AMAQI
28th Jul 2025332 AMAQI
28th Jul 2025333 AMAQI
28th Jul 2025324 AMAQI

24°C21/29°C

28th Jul 2025325 AMAQI
28th Jul 2025316 AMAQI
28th Jul 2025317 AMAQI
28th Jul 2025328 AMAQI
28th Jul 2025229 AMAQI
28th Jul 20252410 AMAQI
28th Jul 20252611 AMAQI
28th Jul 20253112 PMAQI
28th Jul 2025361 PMAQI
28th Jul 2025382 PMAQI
28th Jul 2025413 PMAQI
28th Jul 2025384 PMAQI
28th Jul 2025405 PMAQI
28th Jul 2025426 PMAQI
28th Jul 2025517 PMAQI
28th Jul 2025478 PMAQI
28th Jul 2025459 PMAQI
28th Jul 20254510 PMAQI
28th Jul 20254011 PMAQI
29th Jul 20253612 AMAQI
29th Jul 2025371 AMAQI
29th Jul 2025312 AMAQI
29th Jul 2025323 AMAQI
29th Jul 2025324 AMAQI

25°C22/30°C

29th Jul 2025325 AMAQI
29th Jul 2025326 AMAQI
29th Jul 2025327 AMAQI
29th Jul 2025328 AMAQI
29th Jul 2025319 AMAQI
29th Jul 20253310 AMAQI
29th Jul 20253711 AMAQI
29th Jul 20253812 PMAQI
29th Jul 2025391 PMAQI
29th Jul 2025422 PMAQI
29th Jul 2025453 PMAQI
29th Jul 2025514 PMAQI
29th Jul 2025515 PMAQI
29th Jul 2025516 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025498 PMAQI
29th Jul 2025449 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20253711 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025351 AMAQI
30th Jul 2025332 AMAQI
30th Jul 2025333 AMAQI
30th Jul 2025334 AMAQI

25°C20/30°C

30th Jul 2025345 AMAQI
30th Jul 2025346 AMAQI
30th Jul 2025347 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025299 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20253211 AMAQI
30th Jul 20253812 PMAQI
30th Jul 2025361 PMAQI
30th Jul 2025412 PMAQI
30th Jul 2025493 PMAQI
30th Jul 2025534 PMAQI
30th Jul 2025555 PMAQI
30th Jul 2025546 PMAQI
30th Jul 2025567 PMAQI
30th Jul 2025538 PMAQI
30th Jul 2025449 PMAQI
30th Jul 20253710 PMAQI
30th Jul 20253411 PMAQI
31st Jul 20253412 AMAQI
31st Jul 2025341 AMAQI
31st Jul 2025332 AMAQI
31st Jul 2025333 AMAQI
31st Jul 2025324 AMAQI

25°C20/31°C

31st Jul 2025325 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025327 AMAQI
31st Jul 2025328 AMAQI
31st Jul 2025329 AMAQI
31st Jul 20253210 AMAQI
31st Jul 20254011 AMAQI
31st Jul 20254012 PMAQI
31st Jul 2025401 PMAQI
31st Jul 2025442 PMAQI
31st Jul 2025443 PMAQI
31st Jul 2025454 PMAQI
31st Jul 2025485 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025557 PMAQI
31st Jul 2025478 PMAQI
31st Jul 2025469 PMAQI
31st Jul 20254610 PMAQI
31st Jul 20253811 PMAQI
1st Aug 20253612 AMAQI
1st Aug 2025371 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025333 AMAQI
1st Aug 2025364 AMAQI

25°C19/30°C

1st Aug 2025355 AMAQI
1st Aug 2025376 AMAQI
1st Aug 2025407 AMAQI
1st Aug 2025368 AMAQI
1st Aug 2025469 AMAQI
1st Aug 20254310 AMAQI
1st Aug 20254711 AMAQI
1st Aug 20254612 PMAQI
1st Aug 2025471 PMAQI
1st Aug 2025462 PMAQI
1st Aug 2025513 PMAQI
1st Aug 2025544 PMAQI
1st Aug 2025535 PMAQI
1st Aug 2025566 PMAQI
1st Aug 2025567 PMAQI
1st Aug 2025488 PMAQI
1st Aug 2025439 PMAQI
1st Aug 20254210 PMAQI
1st Aug 20254011 PMAQI
2nd Aug 20254512 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025402 AMAQI
2nd Aug 2025353 AMAQI
2nd Aug 2025374 AMAQI

25°C20/30°C

2nd Aug 2025405 AMAQI
2nd Aug 2025416 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025398 AMAQI
2nd Aug 2025409 AMAQI
2nd Aug 20254310 AMAQI
2nd Aug 20254411 AMAQI
2nd Aug 20255112 PMAQI
2nd Aug 2025471 PMAQI
2nd Aug 2025502 PMAQI
2nd Aug 2025503 PMAQI
2nd Aug 2025474 PMAQI
2nd Aug 2025385 PMAQI
2nd Aug 2025446 PMAQI
2nd Aug 2025427 PMAQI
2nd Aug 2025478 PMAQI
2nd Aug 2025419 PMAQI
2nd Aug 20254310 PMAQI
2nd Aug 20254811 PMAQI
3rd Aug 20254312 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025404 AMAQI

26°C20/32°C

3rd Aug 2025425 AMAQI
3rd Aug 2025416 AMAQI
3rd Aug 2025417 AMAQI
3rd Aug 2025418 AMAQI
3rd Aug 2025459 AMAQI
3rd Aug 20254410 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20255312 PMAQI
3rd Aug 2025551 PMAQI
3rd Aug 2025522 PMAQI
3rd Aug 2025533 PMAQI
3rd Aug 2025554 PMAQI
3rd Aug 2025485 PMAQI
3rd Aug 2025516 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025448 PMAQI
3rd Aug 2025509 PMAQI
3rd Aug 20255010 PMAQI
3rd Aug 20254411 PMAQI
4th Aug 20254912 AMAQI
4th Aug 2025431 AMAQI
4th Aug 2025412 AMAQI
4th Aug 2025413 AMAQI
4th Aug 2025424 AMAQI

26°C21/31°C

4th Aug 2025435 AMAQI
4th Aug 2025436 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025609 AMAQI
4th Aug 20256510 AMAQI
4th Aug 20257011 AMAQI
4th Aug 20257412 PMAQI
4th Aug 2025701 PMAQI
4th Aug 2025782 PMAQI
4th Aug 2025703 PMAQI
4th Aug 2025694 PMAQI
4th Aug 2025705 PMAQI
4th Aug 2025636 PMAQI
4th Aug 2025637 PMAQI
4th Aug 2025538 PMAQI
4th Aug 2025519 PMAQI
4th Aug 20254610 PMAQI
4th Aug 20254811 PMAQI
5th Aug 20255412 AMAQI
5th Aug 2025461 AMAQI
5th Aug 2025432 AMAQI
5th Aug 2025423 AMAQI
5th Aug 2025504 AMAQI

25°C21/29°C

5th Aug 2025525 AMAQI
5th Aug 2025526 AMAQI
5th Aug 2025527 AMAQI
5th Aug 2025538 AMAQI
5th Aug 2025469 AMAQI
5th Aug 20254510 AMAQI
5th Aug 20254611 AMAQI
5th Aug 20255312 PMAQI
5th Aug 2025521 PMAQI
5th Aug 2025502 PMAQI
5th Aug 2025443 PMAQI
5th Aug 2025544 PMAQI
5th Aug 2025425 PMAQI
5th Aug 2025496 PMAQI
5th Aug 2025497 PMAQI
5th Aug 2025478 PMAQI
5th Aug 2025489 PMAQI
5th Aug 20254910 PMAQI
5th Aug 20254611 PMAQI
6th Aug 20254712 AMAQI
6th Aug 2025481 AMAQI
6th Aug 2025502 AMAQI
6th Aug 2025483 AMAQI
6th Aug 2025494 AMAQI

25°C21/29°C

6th Aug 2025505 AMAQI
6th Aug 2025506 AMAQI
6th Aug 2025517 AMAQI
6th Aug 2025498 AMAQI
6th Aug 2025429 AMAQI
6th Aug 20253710 AMAQI
6th Aug 20253311 AMAQI
6th Aug 20254312 PMAQI
6th Aug 2025441 PMAQI
6th Aug 2025382 PMAQI
6th Aug 2025323 PMAQI
6th Aug 2025384 PMAQI
6th Aug 2025365 PMAQI
6th Aug 2025426 PMAQI
6th Aug 2025447 PMAQI
6th Aug 2025458 PMAQI
6th Aug 2025439 PMAQI
6th Aug 20254210 PMAQI
6th Aug 20254211 PMAQI
7th Aug 20254612 AMAQI
7th Aug 2025481 AMAQI
7th Aug 2025482 AMAQI
7th Aug 2025483 AMAQI
7th Aug 2025464 AMAQI

27°C21/32°C

7th Aug 2025475 AMAQI
7th Aug 2025476 AMAQI
7th Aug 2025487 AMAQI
7th Aug 2025458 AMAQI
7th Aug 2025359 AMAQI
7th Aug 20253910 AMAQI
7th Aug 20254211 AMAQI
7th Aug 20253812 PMAQI
7th Aug 2025431 PMAQI
7th Aug 2025382 PMAQI
7th Aug 2025383 PMAQI
7th Aug 2025434 PMAQI
7th Aug 2025495 PMAQI
7th Aug 2025526 PMAQI
7th Aug 2025517 PMAQI
7th Aug 2025518 PMAQI
7th Aug 2025509 PMAQI
7th Aug 20255010 PMAQI
7th Aug 20255011 PMAQI
8th Aug 20255012 AMAQI
8th Aug 2025491 AMAQI
8th Aug 2025482 AMAQI
8th Aug 2025483 AMAQI
8th Aug 2025484 AMAQI

24°C22/27°C

8th Aug 2025465 AMAQI
8th Aug 2025476 AMAQI
8th Aug 2025467 AMAQI
8th Aug 2025468 AMAQI
8th Aug 2025509 AMAQI
8th Aug 20255010 AMAQI
8th Aug 20255211 AMAQI
8th Aug 20255212 PMAQI
8th Aug 2025521 PMAQI
8th Aug 2025502 PMAQI
8th Aug 2025483 PMAQI
8th Aug 2025474 PMAQI
8th Aug 2025485 PMAQI
8th Aug 2025506 PMAQI
8th Aug 2025497 PMAQI
8th Aug 2025488 PMAQI
8th Aug 2025489 PMAQI
8th Aug 20254810 PMAQI
8th Aug 20254611 PMAQI
9th Aug 20254512 AMAQI
9th Aug 2025481 AMAQI
9th Aug 2025492 AMAQI
9th Aug 2025483 AMAQI
9th Aug 2025494 AMAQI

24°C20/28°C

9th Aug 2025495 AMAQI
9th Aug 2025496 AMAQI
9th Aug 2025497 AMAQI
9th Aug 2025498 AMAQI
9th Aug 2025379 AMAQI
9th Aug 20253410 AMAQI
9th Aug 20254211 AMAQI
9th Aug 20255212 PMAQI
9th Aug 2025541 PMAQI
9th Aug 2025552 PMAQI
9th Aug 2025543 PMAQI
9th Aug 2025524 PMAQI
9th Aug 2025425 PMAQI
9th Aug 2025336 PMAQI
9th Aug 2025307 PMAQI
9th Aug 2025318 PMAQI
9th Aug 2025369 PMAQI
9th Aug 20253510 PMAQI
9th Aug 20253711 PMAQI
10th Aug 20253712 AMAQI
10th Aug 2025421 AMAQI
10th Aug 2025492 AMAQI
10th Aug 2025493 AMAQI
10th Aug 2025494 AMAQI

21°C19/22°C

10th Aug 2025495 AMAQI
10th Aug 2025496 AMAQI
10th Aug 2025497 AMAQI
10th Aug 2025498 AMAQI
10th Aug 2025409 AMAQI
10th Aug 20253310 AMAQI
10th Aug 20253511 AMAQI
10th Aug 20253912 PMAQI
10th Aug 2025391 PMAQI
10th Aug 2025392 PMAQI
10th Aug 2025423 PMAQI
10th Aug 2025454 PMAQI
10th Aug 2025435 PMAQI
10th Aug 2025406 PMAQI
10th Aug 2025367 PMAQI
10th Aug 2025398 PMAQI
10th Aug 2025419 PMAQI
10th Aug 20253610 PMAQI
10th Aug 20253311 PMAQI
11th Aug 20253112 AMAQI
11th Aug 2025361 AMAQI
11th Aug 2025462 AMAQI
11th Aug 2025473 AMAQI
11th Aug 2025464 AMAQI

22°C20/24°C

11th Aug 2025445 AMAQI
11th Aug 2025456 AMAQI
11th Aug 2025467 AMAQI
11th Aug 2025468 AMAQI
11th Aug 2025259 AMAQI
11th Aug 20251910 AMAQI
11th Aug 20252211 AMAQI
11th Aug 20252512 PMAQI
11th Aug 2025221 PMAQI
11th Aug 2025202 PMAQI
11th Aug 2025203 PMAQI
11th Aug 2025214 PMAQI
11th Aug 2025235 PMAQI
11th Aug 2025286 PMAQI
11th Aug 2025257 PMAQI
11th Aug 2025268 PMAQI
11th Aug 2025299 PMAQI
11th Aug 20252910 PMAQI
11th Aug 20253011 PMAQI
12th Aug 20253112 AMAQI
12th Aug 2025381 AMAQI
12th Aug 2025412 AMAQI
12th Aug 2025413 AMAQI
12th Aug 2025374 AMAQI

22°C21/24°C

12th Aug 2025355 AMAQI
12th Aug 2025346 AMAQI
12th Aug 2025357 AMAQI
12th Aug 2025348 AMAQI
12th Aug 2025269 AMAQI
12th Aug 20251710 AMAQI
12th Aug 20253311 AMAQI
12th Aug 20253412 PMAQI
12th Aug 2025241 PMAQI
12th Aug 2025262 PMAQI
12th Aug 2025253 PMAQI
12th Aug 2025354 PMAQI
12th Aug 2025295 PMAQI
12th Aug 2025376 PMAQI
12th Aug 2025347 PMAQI
12th Aug 2025348 PMAQI
12th Aug 2025349 PMAQI
12th Aug 20253210 PMAQI
12th Aug 20253211 PMAQI
13th Aug 20253412 AMAQI
13th Aug 2025331 AMAQI
13th Aug 2025422 AMAQI
13th Aug 2025383 AMAQI
13th Aug 2025364 AMAQI

23°C21/25°C

13th Aug 2025345 AMAQI
13th Aug 2025346 AMAQI
13th Aug 2025347 AMAQI
13th Aug 2025338 AMAQI
13th Aug 2025329 AMAQI
13th Aug 20253010 AMAQI
13th Aug 20254311 AMAQI
13th Aug 20255112 PMAQI
13th Aug 2025401 PMAQI
13th Aug 2025482 PMAQI
13th Aug 2025523 PMAQI
13th Aug 2025544 PMAQI
13th Aug 2025525 PMAQI
13th Aug 2025506 PMAQI
13th Aug 2025547 PMAQI
13th Aug 2025338 PMAQI
13th Aug 2025409 PMAQI
13th Aug 20253610 PMAQI
13th Aug 20253711 PMAQI
14th Aug 20254212 AMAQI
14th Aug 2025361 AMAQI
14th Aug 2025352 AMAQI
14th Aug 2025363 AMAQI
14th Aug 2025354 AMAQI

24°C21/27°C

14th Aug 2025375 AMAQI
14th Aug 2025366 AMAQI
14th Aug 2025377 AMAQI
14th Aug 2025368 AMAQI
14th Aug 2025449 AMAQI
14th Aug 20255610 AMAQI
14th Aug 20255411 AMAQI
14th Aug 20254512 PMAQI
14th Aug 2025491 PMAQI
14th Aug 2025522 PMAQI
14th Aug 2025523 PMAQI
14th Aug 2025524 PMAQI
14th Aug 2025515 PMAQI
14th Aug 2025526 PMAQI
14th Aug 2025537 PMAQI
14th Aug 2025508 PMAQI
14th Aug 2025479 PMAQI
14th Aug 20254910 PMAQI
14th Aug 20255111 PMAQI
15th Aug 20254812 AMAQI
15th Aug 2025371 AMAQI
15th Aug 2025362 AMAQI
15th Aug 2025363 AMAQI
15th Aug 2025394 AMAQI

25°C21/29°C

15th Aug 2025405 AMAQI
15th Aug 2025396 AMAQI
15th Aug 2025387 AMAQI
15th Aug 2025398 AMAQI
15th Aug 2025469 AMAQI
15th Aug 20254710 AMAQI
15th Aug 20254211 AMAQI
15th Aug 20254612 PMAQI
15th Aug 2025491 PMAQI
15th Aug 2025602 PMAQI
15th Aug 2025503 PMAQI
15th Aug 2025574 PMAQI
15th Aug 2025565 PMAQI
15th Aug 2025466 PMAQI
15th Aug 2025487 PMAQI
15th Aug 2025468 PMAQI
15th Aug 2025419 PMAQI
15th Aug 20254010 PMAQI
15th Aug 20253911 PMAQI
16th Aug 20254312 AMAQI
16th Aug 2025411 AMAQI
16th Aug 2025392 AMAQI
16th Aug 2025403 AMAQI
16th Aug 2025394 AMAQI

25°C21/29°C

16th Aug 2025405 AMAQI
16th Aug 2025406 AMAQI
16th Aug 2025407 AMAQI
16th Aug 2025418 AMAQI
16th Aug 2025419 AMAQI
16th Aug 20253810 AMAQI
16th Aug 20253911 AMAQI
16th Aug 20254612 PMAQI
16th Aug 2025451 PMAQI
16th Aug 2025442 PMAQI
16th Aug 2025473 PMAQI
16th Aug 2025484 PMAQI
16th Aug 2025465 PMAQI
16th Aug 2025466 PMAQI
16th Aug 2025387 PMAQI
16th Aug 2025408 PMAQI
16th Aug 2025369 PMAQI
16th Aug 20253610 PMAQI
16th Aug 20253811 PMAQI
17th Aug 20253812 AMAQI
17th Aug 2025381 AMAQI
17th Aug 2025392 AMAQI
17th Aug 2025393 AMAQI
17th Aug 2025394 AMAQI

25°C21/29°C

17th Aug 2025395 AMAQI
17th Aug 2025406 AMAQI
17th Aug 2025397 AMAQI
17th Aug 2025398 AMAQI
17th Aug 2025409 AMAQI
17th Aug 20254810 AMAQI
17th Aug 20254611 AMAQI
17th Aug 20255012 PMAQI
17th Aug 2025501 PMAQI
17th Aug 2025442 PMAQI
17th Aug 2025493 PMAQI
17th Aug 2025374 PMAQI
17th Aug 2025375 PMAQI
17th Aug 2025366 PMAQI
17th Aug 2025327 PMAQI
17th Aug 2025338 PMAQI
17th Aug 2025349 PMAQI
17th Aug 20253910 PMAQI
17th Aug 20253711 PMAQI
18th Aug 20253812 AMAQI
18th Aug 2025381 AMAQI
18th Aug 2025382 AMAQI
18th Aug 2025383 AMAQI
18th Aug 2025394 AMAQI

24°C20/28°C

18th Aug 2025405 AMAQI
18th Aug 2025416 AMAQI
18th Aug 2025417 AMAQI
18th Aug 2025408 AMAQI
18th Aug 2025359 AMAQI
18th Aug 20253910 AMAQI
18th Aug 20254811 AMAQI
18th Aug 20253812 PMAQI
18th Aug 2025491 PMAQI
18th Aug 2025502 PMAQI
18th Aug 2025463 PMAQI
18th Aug 2025474 PMAQI
18th Aug 2025545 PMAQI
18th Aug 2025546 PMAQI
18th Aug 2025527 PMAQI
18th Aug 2025468 PMAQI
18th Aug 2025429 PMAQI
18th Aug 20254410 PMAQI
18th Aug 20254111 PMAQI
19th Aug 20254512 AMAQI
19th Aug 2025391 AMAQI
19th Aug 2025412 AMAQI
19th Aug 2025383 AMAQI
19th Aug 2025404 AMAQI

24°C20/28°C

19th Aug 2025405 AMAQI
19th Aug 2025406 AMAQI
19th Aug 2025407 AMAQI
19th Aug 2025418 AMAQI
19th Aug 2025459 AMAQI
19th Aug 20254910 AMAQI
19th Aug 20254311 AMAQI
19th Aug 20254612 PMAQI
19th Aug 2025561 PMAQI
19th Aug 2025572 PMAQI
19th Aug 2025513 PMAQI
19th Aug 2025564 PMAQI
19th Aug 2025535 PMAQI
19th Aug 2025556 PMAQI
19th Aug 2025537 PMAQI
19th Aug 2025578 PMAQI
19th Aug 2025499 PMAQI
19th Aug 20255510 PMAQI
19th Aug 20255511 PMAQI
20th Aug 20255212 AMAQI
20th Aug 2025451 AMAQI
20th Aug 2025412 AMAQI
20th Aug 2025413 AMAQI
20th Aug 2025434 AMAQI

24°C20/29°C

20th Aug 2025425 AMAQI
20th Aug 2025436 AMAQI
20th Aug 2025447 AMAQI
20th Aug 2025438 AMAQI
20th Aug 2025519 AMAQI
20th Aug 20254610 AMAQI
20th Aug 20255111 AMAQI
20th Aug 20255812 PMAQI
20th Aug 2025481 PMAQI
20th Aug 2025502 PMAQI
20th Aug 2025463 PMAQI
20th Aug 2025564 PMAQI
20th Aug 2025455 PMAQI
20th Aug 2025416 PMAQI
20th Aug 2025367 PMAQI
20th Aug 2025408 PMAQI
20th Aug 2025449 PMAQI
20th Aug 20254210 PMAQI
20th Aug 20253811 PMAQI
21st Aug 20254212 AMAQI
21st Aug 2025451 AMAQI
21st Aug 2025452 AMAQI
21st Aug 2025453 AMAQI
21st Aug 2025484 AMAQI

24°C20/28°C

21st Aug 2025495 AMAQI
5 AM
21st Aug 2025496 AMAQI
21st Aug 2025487 AMAQI
21st Aug 2025488 AMAQI
21st Aug 2025269 AMAQI
21st Aug 20252410 AMAQI
12 PM
7 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
4 PM - 7 PM

45AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM - 10 AM

37AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 7 PM (Avg. 45), while the lowest AQI was between 9 AM to 10 AM (Avg. 37).
Night time
Avg. Highest Time
12 AM - 11 PM

41AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM

41AQI

9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 41), while the lowest AQI was between 12 AM to 11 PM (Avg. 41).

2025 Days Vs Air Quality

Saijo, Ehime, Japan

2025

62%

143

37%

86

1%

3

Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)

Good
143 Days
Moderate
86 Days
Poor
3 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 62%

Health Risk Level:

Moderate

In 2025, 62% of 233 days were within WHO’s safe air quality limits, and 38% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.

Annual Air Quality Insights

Saijo, Ehime, 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
31AQI
2nd January 2025
38AQI
3rd January 2025
33AQI
4th January 2025
34AQI
5th January 2025
33AQI
6th January 2025
47AQI
7th January 2025
33AQI
8th January 2025
35AQI
9th January 2025
30AQI
10th January 2025
28AQI
11th January 2025
30AQI
12th January 2025
30AQI
13th January 2025
44AQI
14th January 2025
48AQI
15th January 2025
45AQI
16th January 2025
38AQI
17th January 2025
36AQI
18th January 2025
33AQI
19th January 2025
52AQI
20th January 2025
41AQI
21st January 2025
55AQI
22nd January 2025
59AQI
23rd January 2025
71AQI
24th January 2025
90AQI
25th January 2025
48AQI
26th January 2025
48AQI
27th January 2025
43AQI
28th January 2025
38AQI
29th January 2025
34AQI
30th January 2025
44AQI
31st January 2025
57AQI
1st February 2025
70AQI
2nd February 2025
47AQI
3rd February 2025
54AQI
4th February 2025
40AQI
5th February 2025
41AQI
6th February 2025
33AQI
7th February 2025
39AQI
8th February 2025
32AQI
9th February 2025
32AQI
10th February 2025
31AQI
11th February 2025
36AQI
12th February 2025
44AQI
13th February 2025
40AQI
14th February 2025
49AQI
15th February 2025
36AQI
16th February 2025
52AQI
17th February 2025
47AQI
18th February 2025
41AQI
19th February 2025
41AQI
20th February 2025
35AQI
21st February 2025
38AQI
22nd February 2025
43AQI
23rd February 2025
37AQI
24th February 2025
40AQI
25th February 2025
38AQI
26th February 2025
43AQI
27th February 2025
76AQI
28th February 2025
92AQI
1st March 2025
102AQI
2nd March 2025
123AQI
3rd March 2025
60AQI
4th March 2025
62AQI
5th March 2025
42AQI
6th March 2025
42AQI
7th March 2025
39AQI
8th March 2025
44AQI
9th March 2025
45AQI
10th March 2025
46AQI
11th March 2025
54AQI
12th March 2025
56AQI
13th March 2025
63AQI
14th March 2025
58AQI
15th March 2025
44AQI
16th March 2025
30AQI
17th March 2025
46AQI
18th March 2025
32AQI
19th March 2025
43AQI
20th March 2025
47AQI
21st March 2025
60AQI
22nd March 2025
63AQI
23rd March 2025
71AQI
24th March 2025
65AQI
25th March 2025
82AQI
26th March 2025
77AQI
27th March 2025
96AQI
28th March 2025
62AQI
29th March 2025
55AQI
30th March 2025
44AQI
31st March 2025
43AQI
1st April 2025
50AQI
2nd April 2025
42AQI
3rd April 2025
31AQI
4th April 2025
36AQI
5th April 2025
46AQI
6th April 2025
48AQI
7th April 2025
48AQI
8th April 2025
43AQI
9th April 2025
64AQI
10th April 2025
64AQI
11th April 2025
60AQI
12th April 2025
65AQI
13th April 2025
48AQI
14th April 2025
52AQI
15th April 2025
32AQI
16th April 2025
50AQI
17th April 2025
53AQI
18th April 2025
64AQI
19th April 2025
63AQI
20th April 2025
53AQI
21st April 2025
49AQI
22nd April 2025
57AQI
23rd April 2025
47AQI
24th April 2025
43AQI
25th April 2025
61AQI
26th April 2025
62AQI
27th April 2025
58AQI
28th April 2025
50AQI
29th April 2025
47AQI
30th April 2025
57AQI
1st May 2025
55AQI
2nd May 2025
42AQI
3rd May 2025
50AQI
4th May 2025
39AQI
5th May 2025
45AQI
6th May 2025
37AQI
7th May 2025
35AQI
8th May 2025
40AQI
9th May 2025
41AQI
10th May 2025
40AQI
11th May 2025
40AQI
12th May 2025
52AQI
13th May 2025
56AQI
14th May 2025
62AQI
15th May 2025
60AQI
16th May 2025
65AQI
17th May 2025
51AQI
18th May 2025
53AQI
19th May 2025
61AQI
20th May 2025
66AQI
21st May 2025
73AQI
22nd May 2025
49AQI
23rd May 2025
56AQI
24th May 2025
46AQI
25th May 2025
29AQI
26th May 2025
40AQI
27th May 2025
42AQI
28th May 2025
45AQI
29th May 2025
50AQI
30th May 2025
45AQI
31st May 2025
40AQI
1st June 2025
45AQI
2nd June 2025
53AQI
3rd June 2025
35AQI
4th June 2025
47AQI
5th June 2025
48AQI
6th June 2025
56AQI
7th June 2025
61AQI
8th June 2025
69AQI
9th June 2025
63AQI
10th June 2025
41AQI
11th June 2025
48AQI
12th June 2025
57AQI
13th June 2025
58AQI
14th June 2025
53AQI
15th June 2025
35AQI
16th June 2025
40AQI
17th June 2025
40AQI
18th June 2025
50AQI
19th June 2025
52AQI
20th June 2025
58AQI
21st June 2025
64AQI
22nd June 2025
74AQI
23rd June 2025
58AQI
24th June 2025
53AQI
25th June 2025
56AQI
26th June 2025
47AQI
27th June 2025
53AQI
28th June 2025
58AQI
29th June 2025
59AQI
30th June 2025
59AQI
1st July 2025
60AQI
2nd July 2025
84AQI
3rd July 2025
96AQI
4th July 2025
109AQI
5th July 2025
89AQI
6th July 2025
69AQI
7th July 2025
66AQI
8th July 2025
70AQI
9th July 2025
76AQI
10th July 2025
80AQI
11th July 2025
65AQI
12th July 2025
61AQI
13th July 2025
54AQI
14th July 2025
43AQI
15th July 2025
51AQI
16th July 2025
60AQI
17th July 2025
50AQI
18th July 2025
40AQI
19th July 2025
41AQI
20th July 2025
40AQI
21st July 2025
39AQI
22nd July 2025
38AQI
23rd July 2025
43AQI
24th July 2025
48AQI
25th July 2025
35AQI
26th July 2025
29AQI
27th July 2025
29AQI
28th July 2025
36AQI
29th July 2025
39AQI
30th July 2025
40AQI
31st July 2025
40AQI
1st August 2025
43AQI
2nd August 2025
42AQI
3rd August 2025
46AQI
4th August 2025
55AQI
5th August 2025
48AQI
6th August 2025
44AQI
7th August 2025
46AQI
8th August 2025
48AQI
9th August 2025
43AQI
10th August 2025
42AQI
11th August 2025
32AQI
12th August 2025
33AQI
13th August 2025
40AQI
14th August 2025
45AQI
15th August 2025
44AQI
16th August 2025
41AQI
17th August 2025
39AQI
18th August 2025
43AQI
19th August 2025
48AQI
20th August 2025
45AQI

43AQI

45AQI

58AQI

51AQI

49AQI

53AQI

55AQI

43AQI

No. of days

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

202550AQI

25
6
23
5
14
15
2
16
14
19
12
11
19
16
14
1
19
1
143
86
3

Highest AQI recorded in

March

58AQI

Lowest AQI recorded in

January

43AQI

202447AQI

26
5
21
7
1
16
15
7
21
2
10
21
13
17
26
5
22
9
21
9
26
5
21
9
31
240
123
3

Highest AQI recorded in

April

66AQI

Lowest AQI recorded in

December

34AQI

202347AQI

23
8
21
7
10
21
10
20
17
14
12
18
20
11
31
25
5
24
7
21
8
22
9
236
128

Highest AQI recorded in

April

59AQI

Lowest AQI recorded in

August

34AQI

202246AQI

25
6
18
3
13
18
15
15
7
24
13
17
13
9
1
22
7
23
8
19
11
28
3
196
122

Highest AQI recorded in

May

59AQI

Lowest AQI recorded in

December

37AQI

202144AQI

23
8
19
9
17
12
16
5
19
12
11
19
22
9
25
6
23
7
22
9
22
8
29
2
248
106

Highest AQI recorded in

June

56AQI

Lowest AQI recorded in

December

38AQI

202046AQI

6
6
1
15
6
8
10
14
16
23
8
13
15
3
17
2
24
7
23
7
26
5
169
82
4

Highest AQI recorded in

August

63AQI

Lowest AQI recorded in

September

36AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
50AQI
Least Polluted Year Recorded
2021(Avg.)
44AQI

Saijo's annual 2025 AQI (50) shows an average percentage change of 8.5% (worsened AQI) compared to previous years: 2020 (46), 2021 (44), 2022 (46), 2023 (47), 2024 (47).