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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+

October Air Quality Analysis

Saijo, Ehime, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Oct 2021
72AQI
Lowest AQI recorded on
22nd Oct 2021
24AQI

Same Day Analysis (5th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 71 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 5th Oct - 6th Oct 2025

Saijo, Ehime, Japan

AQI
Day
Night
.

5 AM5th Oct 2025

6 PM

4 AM6th Oct 2025

Day time
Avg. Highest Time
6AM5th Oct

76AQI

Avg. Lowest Time
5PM5th Oct

57AQI

Night time
Avg. Highest Time
5AM5th Oct

75AQI

Avg. Lowest Time
1AM6th Oct

61AQI

In the last 24 hours,

Saijo's AQI reached its highest point of 76 at 6 AM during the Day, while the lowest point, 57, was recorded at 5 PM during the Day between 5th Oct and 6th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Saijo, Ehime, Japan

SepOct
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
6th Sep 2025255 AMAQI
6th Sep 2025266 AMAQI
6th Sep 2025267 AMAQI
6th Sep 2025258 AMAQI
6th Sep 2025259 AMAQI
6th Sep 20252410 AMAQI
6th Sep 20252711 AMAQI
6th Sep 20252712 PMAQI
6th Sep 2025331 PMAQI
6th Sep 2025282 PMAQI
6th Sep 2025313 PMAQI
6th Sep 2025404 PMAQI
6th Sep 2025335 PMAQI
6th Sep 2025376 PMAQI
6th Sep 2025327 PMAQI
6th Sep 2025288 PMAQI
6th Sep 2025299 PMAQI
6th Sep 20252710 PMAQI
6th Sep 20252511 PMAQI
7th Sep 20252912 AMAQI
7th Sep 2025251 AMAQI
7th Sep 2025232 AMAQI
7th Sep 2025233 AMAQI
7th Sep 2025244 AMAQI

25°C20/30°C

7th Sep 2025245 AMAQI
7th Sep 2025246 AMAQI
7th Sep 2025247 AMAQI
7th Sep 2025238 AMAQI
7th Sep 2025319 AMAQI
7th Sep 20253310 AMAQI
7th Sep 20253511 AMAQI
7th Sep 20254012 PMAQI
7th Sep 2025301 PMAQI
7th Sep 2025402 PMAQI
7th Sep 2025333 PMAQI
7th Sep 2025364 PMAQI
7th Sep 2025355 PMAQI
7th Sep 2025386 PMAQI
7th Sep 2025367 PMAQI
7th Sep 2025368 PMAQI
7th Sep 2025309 PMAQI
7th Sep 20252810 PMAQI
7th Sep 20252911 PMAQI
8th Sep 20252812 AMAQI
8th Sep 2025261 AMAQI
8th Sep 2025262 AMAQI
8th Sep 2025243 AMAQI
8th Sep 2025254 AMAQI

25°C21/30°C

8th Sep 2025265 AMAQI
8th Sep 2025266 AMAQI
8th Sep 2025277 AMAQI
8th Sep 2025278 AMAQI
8th Sep 2025299 AMAQI
8th Sep 20253310 AMAQI
8th Sep 20253911 AMAQI
8th Sep 20253612 PMAQI
8th Sep 2025391 PMAQI
8th Sep 2025372 PMAQI
8th Sep 2025363 PMAQI
8th Sep 2025314 PMAQI
8th Sep 2025385 PMAQI
8th Sep 2025326 PMAQI
8th Sep 2025367 PMAQI
8th Sep 2025318 PMAQI
8th Sep 2025329 PMAQI
8th Sep 20253110 PMAQI
8th Sep 20253011 PMAQI
9th Sep 20253012 AMAQI
9th Sep 2025301 AMAQI
9th Sep 2025282 AMAQI
9th Sep 2025303 AMAQI
9th Sep 2025294 AMAQI

25°C21/29°C

9th Sep 2025305 AMAQI
9th Sep 2025326 AMAQI
9th Sep 2025307 AMAQI
9th Sep 2025308 AMAQI
9th Sep 2025339 AMAQI
9th Sep 20253810 AMAQI
9th Sep 20253111 AMAQI
9th Sep 20252312 PMAQI
9th Sep 2025441 PMAQI
9th Sep 2025292 PMAQI
9th Sep 2025343 PMAQI
9th Sep 2025254 PMAQI
9th Sep 2025335 PMAQI
9th Sep 2025276 PMAQI
9th Sep 2025357 PMAQI
9th Sep 2025258 PMAQI
9th Sep 2025249 PMAQI
9th Sep 20252610 PMAQI
9th Sep 20252911 PMAQI
10th Sep 20253112 AMAQI
10th Sep 2025281 AMAQI
10th Sep 2025302 AMAQI
10th Sep 2025303 AMAQI
10th Sep 2025304 AMAQI

25°C21/30°C

10th Sep 2025305 AMAQI
10th Sep 2025306 AMAQI
10th Sep 2025317 AMAQI
10th Sep 2025318 AMAQI
10th Sep 2025379 AMAQI
10th Sep 20254310 AMAQI
10th Sep 20254011 AMAQI
10th Sep 20253912 PMAQI
10th Sep 2025451 PMAQI
10th Sep 2025432 PMAQI
10th Sep 2025333 PMAQI
10th Sep 2025304 PMAQI
10th Sep 2025265 PMAQI
10th Sep 2025336 PMAQI
10th Sep 2025317 PMAQI
10th Sep 2025318 PMAQI
10th Sep 2025289 PMAQI
10th Sep 20252910 PMAQI
10th Sep 20253011 PMAQI
11th Sep 20252712 AMAQI
11th Sep 2025341 AMAQI
11th Sep 2025322 AMAQI
11th Sep 2025343 AMAQI
11th Sep 2025324 AMAQI

23°C20/25°C

11th Sep 2025335 AMAQI
11th Sep 2025326 AMAQI
11th Sep 2025327 AMAQI
11th Sep 2025328 AMAQI
11th Sep 2025189 AMAQI
11th Sep 20252710 AMAQI
11th Sep 20252211 AMAQI
11th Sep 20253212 PMAQI
11th Sep 2025341 PMAQI
11th Sep 2025362 PMAQI
11th Sep 2025303 PMAQI
11th Sep 2025294 PMAQI
11th Sep 2025235 PMAQI
11th Sep 2025276 PMAQI
11th Sep 2025287 PMAQI
11th Sep 2025368 PMAQI
11th Sep 2025359 PMAQI
11th Sep 20252910 PMAQI
11th Sep 20252811 PMAQI
12th Sep 20252712 AMAQI
12th Sep 2025311 AMAQI
12th Sep 2025322 AMAQI
12th Sep 2025323 AMAQI
12th Sep 2025324 AMAQI

23°C20/24°C

12th Sep 2025315 AMAQI
12th Sep 2025326 AMAQI
12th Sep 2025327 AMAQI
12th Sep 2025318 AMAQI
12th Sep 2025259 AMAQI
12th Sep 20252310 AMAQI
12th Sep 20251911 AMAQI
12th Sep 20252712 PMAQI
12th Sep 2025261 PMAQI
12th Sep 2025312 PMAQI
12th Sep 2025223 PMAQI
12th Sep 2025294 PMAQI
12th Sep 2025295 PMAQI
12th Sep 2025396 PMAQI
12th Sep 2025247 PMAQI
12th Sep 2025228 PMAQI
12th Sep 2025289 PMAQI
12th Sep 20252510 PMAQI
12th Sep 20252511 PMAQI
13th Sep 20252812 AMAQI
13th Sep 2025321 AMAQI
13th Sep 2025322 AMAQI
13th Sep 2025333 AMAQI
13th Sep 2025314 AMAQI

22°C19/26°C

13th Sep 2025315 AMAQI
13th Sep 2025326 AMAQI
13th Sep 2025317 AMAQI
13th Sep 2025318 AMAQI
13th Sep 2025179 AMAQI
13th Sep 20252810 AMAQI
13th Sep 20253311 AMAQI
13th Sep 20253612 PMAQI
13th Sep 2025401 PMAQI
13th Sep 2025352 PMAQI
13th Sep 2025373 PMAQI
13th Sep 2025404 PMAQI
13th Sep 2025315 PMAQI
13th Sep 2025396 PMAQI
13th Sep 2025487 PMAQI
13th Sep 2025388 PMAQI
13th Sep 2025329 PMAQI
13th Sep 20253610 PMAQI
13th Sep 20253211 PMAQI
14th Sep 20253012 AMAQI
14th Sep 2025311 AMAQI
14th Sep 2025322 AMAQI
14th Sep 2025323 AMAQI
14th Sep 2025324 AMAQI

24°C20/26°C

14th Sep 2025315 AMAQI
14th Sep 2025326 AMAQI
14th Sep 2025327 AMAQI
14th Sep 2025328 AMAQI
14th Sep 2025289 AMAQI
14th Sep 20252010 AMAQI
14th Sep 20253011 AMAQI
14th Sep 20253112 PMAQI
14th Sep 2025221 PMAQI
14th Sep 2025212 PMAQI
14th Sep 2025223 PMAQI
14th Sep 2025244 PMAQI
14th Sep 2025275 PMAQI
14th Sep 2025326 PMAQI
14th Sep 2025307 PMAQI
14th Sep 2025298 PMAQI
14th Sep 2025319 PMAQI
14th Sep 20253110 PMAQI
14th Sep 20252911 PMAQI
15th Sep 20252912 AMAQI
15th Sep 2025321 AMAQI
15th Sep 2025332 AMAQI
15th Sep 2025333 AMAQI
15th Sep 2025314 AMAQI

25°C21/28°C

15th Sep 2025315 AMAQI
15th Sep 2025306 AMAQI
15th Sep 2025307 AMAQI
15th Sep 2025308 AMAQI
15th Sep 2025249 AMAQI
15th Sep 20252710 AMAQI
15th Sep 20253511 AMAQI
15th Sep 20254412 PMAQI
15th Sep 2025431 PMAQI
15th Sep 2025512 PMAQI
15th Sep 2025453 PMAQI
15th Sep 2025494 PMAQI
15th Sep 2025485 PMAQI
15th Sep 2025516 PMAQI
15th Sep 2025437 PMAQI
15th Sep 2025368 PMAQI
15th Sep 2025349 PMAQI
15th Sep 20253410 PMAQI
15th Sep 20253211 PMAQI
16th Sep 20253212 AMAQI
16th Sep 2025331 AMAQI
16th Sep 2025322 AMAQI
16th Sep 2025313 AMAQI
16th Sep 2025324 AMAQI

25°C22/28°C

16th Sep 2025335 AMAQI
16th Sep 2025326 AMAQI
16th Sep 2025327 AMAQI
16th Sep 2025338 AMAQI
16th Sep 2025349 AMAQI
16th Sep 20253710 AMAQI
16th Sep 20254311 AMAQI
16th Sep 20255412 PMAQI
16th Sep 2025531 PMAQI
16th Sep 2025492 PMAQI
16th Sep 2025543 PMAQI
16th Sep 2025544 PMAQI
16th Sep 2025545 PMAQI
16th Sep 2025536 PMAQI
16th Sep 2025517 PMAQI
16th Sep 2025448 PMAQI
16th Sep 2025449 PMAQI
16th Sep 20254010 PMAQI
16th Sep 20254011 PMAQI
17th Sep 20254112 AMAQI
17th Sep 2025351 AMAQI
17th Sep 2025322 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025344 AMAQI

24°C21/27°C

17th Sep 2025365 AMAQI
17th Sep 2025356 AMAQI
17th Sep 2025367 AMAQI
17th Sep 2025368 AMAQI
17th Sep 2025429 AMAQI
17th Sep 20254810 AMAQI
17th Sep 20255211 AMAQI
17th Sep 20256012 PMAQI
17th Sep 2025601 PMAQI
17th Sep 2025492 PMAQI
17th Sep 2025433 PMAQI
17th Sep 2025414 PMAQI
17th Sep 2025405 PMAQI
17th Sep 2025526 PMAQI
17th Sep 2025367 PMAQI
17th Sep 2025338 PMAQI
17th Sep 2025319 PMAQI
17th Sep 20253010 PMAQI
17th Sep 20252911 PMAQI
18th Sep 20252912 AMAQI
18th Sep 2025301 AMAQI
18th Sep 2025342 AMAQI
18th Sep 2025353 AMAQI
18th Sep 2025374 AMAQI

24°C20/28°C

18th Sep 2025405 AMAQI
18th Sep 2025406 AMAQI
18th Sep 2025407 AMAQI
18th Sep 2025408 AMAQI
18th Sep 2025299 AMAQI
18th Sep 20252210 AMAQI
18th Sep 20251911 AMAQI
18th Sep 20251712 PMAQI
18th Sep 2025171 PMAQI
18th Sep 2025162 PMAQI
18th Sep 2025173 PMAQI
18th Sep 2025234 PMAQI
18th Sep 2025205 PMAQI
18th Sep 2025226 PMAQI
18th Sep 2025217 PMAQI
18th Sep 2025248 PMAQI
18th Sep 2025279 PMAQI
18th Sep 20252710 PMAQI
18th Sep 20252711 PMAQI
19th Sep 20252512 AMAQI
19th Sep 2025271 AMAQI
19th Sep 2025332 AMAQI
19th Sep 2025343 AMAQI
19th Sep 2025324 AMAQI

23°C20/26°C

19th Sep 2025315 AMAQI
19th Sep 2025326 AMAQI
19th Sep 2025327 AMAQI
19th Sep 2025328 AMAQI
19th Sep 2025229 AMAQI
19th Sep 20252210 AMAQI
19th Sep 20252011 AMAQI
19th Sep 20252212 PMAQI
19th Sep 2025291 PMAQI
19th Sep 2025312 PMAQI
19th Sep 2025333 PMAQI
19th Sep 2025324 PMAQI
19th Sep 2025405 PMAQI
19th Sep 2025426 PMAQI
19th Sep 2025397 PMAQI
19th Sep 2025408 PMAQI
19th Sep 2025419 PMAQI
19th Sep 20253710 PMAQI
19th Sep 20253811 PMAQI
20th Sep 20253912 AMAQI
20th Sep 2025351 AMAQI
20th Sep 2025302 AMAQI
20th Sep 2025303 AMAQI
20th Sep 2025304 AMAQI

21°C18/23°C

20th Sep 2025295 AMAQI
20th Sep 2025296 AMAQI
20th Sep 2025307 AMAQI
20th Sep 2025298 AMAQI
20th Sep 2025329 AMAQI
20th Sep 20253510 AMAQI
20th Sep 20253911 AMAQI
20th Sep 20254812 PMAQI
20th Sep 2025471 PMAQI
20th Sep 2025512 PMAQI
20th Sep 2025533 PMAQI
20th Sep 2025534 PMAQI
20th Sep 2025545 PMAQI
20th Sep 2025586 PMAQI
20th Sep 2025627 PMAQI
20th Sep 2025578 PMAQI
20th Sep 2025499 PMAQI
20th Sep 20254910 PMAQI
20th Sep 20254811 PMAQI
21st Sep 20254612 AMAQI
21st Sep 2025381 AMAQI
21st Sep 2025302 AMAQI
21st Sep 2025303 AMAQI
21st Sep 2025324 AMAQI

22°C19/24°C

21st Sep 2025335 AMAQI
21st Sep 2025346 AMAQI
21st Sep 2025347 AMAQI
21st Sep 2025338 AMAQI
21st Sep 2025199 AMAQI
21st Sep 20251410 AMAQI
21st Sep 20251411 AMAQI
21st Sep 20251412 PMAQI
21st Sep 2025141 PMAQI
21st Sep 2025162 PMAQI
21st Sep 2025153 PMAQI
21st Sep 2025184 PMAQI
21st Sep 2025235 PMAQI
21st Sep 2025286 PMAQI
21st Sep 2025367 PMAQI
21st Sep 2025288 PMAQI
21st Sep 2025279 PMAQI
21st Sep 20252810 PMAQI
21st Sep 20252811 PMAQI
22nd Sep 20252812 AMAQI
22nd Sep 2025311 AMAQI
22nd Sep 2025342 AMAQI
22nd Sep 2025343 AMAQI
22nd Sep 2025324 AMAQI

21°C19/23°C

22nd Sep 2025305 AMAQI
22nd Sep 2025306 AMAQI
22nd Sep 2025307 AMAQI
22nd Sep 2025318 AMAQI
22nd Sep 2025229 AMAQI
22nd Sep 20251810 AMAQI
22nd Sep 20251911 AMAQI
22nd Sep 20252012 PMAQI
22nd Sep 2025211 PMAQI
22nd Sep 2025202 PMAQI
22nd Sep 2025203 PMAQI
22nd Sep 2025224 PMAQI
22nd Sep 2025265 PMAQI
22nd Sep 2025296 PMAQI
22nd Sep 2025297 PMAQI
22nd Sep 2025308 PMAQI
22nd Sep 2025329 PMAQI
22nd Sep 20253210 PMAQI
22nd Sep 20253011 PMAQI
23rd Sep 20253012 AMAQI
23rd Sep 2025301 AMAQI
23rd Sep 2025312 AMAQI
23rd Sep 2025313 AMAQI
23rd Sep 2025304 AMAQI

19°C15/23°C

23rd Sep 2025295 AMAQI
23rd Sep 2025286 AMAQI
23rd Sep 2025297 AMAQI
23rd Sep 2025288 AMAQI
23rd Sep 2025309 AMAQI
23rd Sep 20253010 AMAQI
23rd Sep 20253211 AMAQI
23rd Sep 20252912 PMAQI
23rd Sep 2025291 PMAQI
23rd Sep 2025332 PMAQI
23rd Sep 2025333 PMAQI
23rd Sep 2025284 PMAQI
23rd Sep 2025285 PMAQI
23rd Sep 2025246 PMAQI
23rd Sep 2025227 PMAQI
23rd Sep 2025268 PMAQI
23rd Sep 2025289 PMAQI
23rd Sep 20252810 PMAQI
23rd Sep 20252811 PMAQI
24th Sep 20252812 AMAQI
24th Sep 2025301 AMAQI
24th Sep 2025292 AMAQI
24th Sep 2025293 AMAQI
24th Sep 2025294 AMAQI

20°C18/21°C

24th Sep 2025285 AMAQI
24th Sep 2025296 AMAQI
24th Sep 2025287 AMAQI
24th Sep 2025288 AMAQI
24th Sep 2025369 AMAQI
24th Sep 20253610 AMAQI
24th Sep 20253811 AMAQI
24th Sep 20253712 PMAQI
24th Sep 2025331 PMAQI
24th Sep 2025302 PMAQI
24th Sep 2025333 PMAQI
24th Sep 2025364 PMAQI
24th Sep 2025375 PMAQI
24th Sep 2025356 PMAQI
24th Sep 2025367 PMAQI
24th Sep 2025368 PMAQI
24th Sep 2025359 PMAQI
24th Sep 20253810 PMAQI
24th Sep 20253511 PMAQI
25th Sep 20253312 AMAQI
25th Sep 2025321 AMAQI
25th Sep 2025282 AMAQI
25th Sep 2025283 AMAQI
25th Sep 2025284 AMAQI

22°C21/24°C

25th Sep 2025295 AMAQI
25th Sep 2025296 AMAQI
25th Sep 2025307 AMAQI
25th Sep 2025308 AMAQI
25th Sep 2025329 AMAQI
25th Sep 20253310 AMAQI
25th Sep 20252411 AMAQI
25th Sep 20251912 PMAQI
25th Sep 2025201 PMAQI
25th Sep 2025252 PMAQI
25th Sep 2025263 PMAQI
25th Sep 2025294 PMAQI
25th Sep 2025345 PMAQI
25th Sep 2025316 PMAQI
25th Sep 2025287 PMAQI
25th Sep 2025308 PMAQI
25th Sep 2025309 PMAQI
25th Sep 20253010 PMAQI
25th Sep 20252711 PMAQI
26th Sep 20252312 AMAQI
26th Sep 2025221 AMAQI
26th Sep 2025222 AMAQI
26th Sep 2025223 AMAQI
26th Sep 2025204 AMAQI

23°C22/24°C

26th Sep 2025205 AMAQI
26th Sep 2025216 AMAQI
26th Sep 2025277 AMAQI
26th Sep 2025298 AMAQI
26th Sep 2025269 AMAQI
26th Sep 20253010 AMAQI
26th Sep 20253211 AMAQI
26th Sep 20254312 PMAQI
26th Sep 2025511 PMAQI
26th Sep 2025532 PMAQI
26th Sep 2025483 PMAQI
26th Sep 2025414 PMAQI
26th Sep 2025405 PMAQI
26th Sep 2025476 PMAQI
26th Sep 2025547 PMAQI
26th Sep 2025508 PMAQI
26th Sep 2025429 PMAQI
26th Sep 20253810 PMAQI
26th Sep 20253411 PMAQI
27th Sep 20253712 AMAQI
27th Sep 2025411 AMAQI
27th Sep 2025462 AMAQI
27th Sep 2025453 AMAQI
27th Sep 2025444 AMAQI

23°C21/26°C

27th Sep 2025405 AMAQI
27th Sep 2025326 AMAQI
27th Sep 2025357 AMAQI
27th Sep 2025348 AMAQI
27th Sep 2025299 AMAQI
27th Sep 20252610 AMAQI
27th Sep 20252911 AMAQI
27th Sep 20253312 PMAQI
27th Sep 2025351 PMAQI
27th Sep 2025302 PMAQI
27th Sep 2025373 PMAQI
27th Sep 2025394 PMAQI
27th Sep 2025415 PMAQI
27th Sep 2025416 PMAQI
27th Sep 2025447 PMAQI
27th Sep 2025438 PMAQI
27th Sep 2025429 PMAQI
27th Sep 20254310 PMAQI
27th Sep 20254011 PMAQI
28th Sep 20253712 AMAQI
28th Sep 2025371 AMAQI
28th Sep 2025362 AMAQI
28th Sep 2025383 AMAQI
28th Sep 2025394 AMAQI

21°C19/23°C

28th Sep 2025395 AMAQI
28th Sep 2025396 AMAQI
28th Sep 2025397 AMAQI
28th Sep 2025378 AMAQI
28th Sep 2025379 AMAQI
28th Sep 20253210 AMAQI
28th Sep 20253011 AMAQI
28th Sep 20253412 PMAQI
28th Sep 2025411 PMAQI
28th Sep 2025452 PMAQI
28th Sep 2025433 PMAQI
28th Sep 2025424 PMAQI
28th Sep 2025425 PMAQI
28th Sep 2025446 PMAQI
28th Sep 2025517 PMAQI
28th Sep 2025508 PMAQI
28th Sep 2025469 PMAQI
28th Sep 20254710 PMAQI
28th Sep 20254711 PMAQI
29th Sep 20254412 AMAQI
29th Sep 2025381 AMAQI
29th Sep 2025292 AMAQI
29th Sep 2025193 AMAQI
29th Sep 2025184 AMAQI

20°C17/22°C

29th Sep 2025245 AMAQI
29th Sep 2025306 AMAQI
29th Sep 2025347 AMAQI
29th Sep 2025328 AMAQI
29th Sep 2025259 AMAQI
29th Sep 20251610 AMAQI
29th Sep 20251611 AMAQI
29th Sep 20251412 PMAQI
29th Sep 2025141 PMAQI
29th Sep 2025132 PMAQI
29th Sep 2025113 PMAQI
29th Sep 2025204 PMAQI
29th Sep 2025245 PMAQI
29th Sep 2025296 PMAQI
29th Sep 2025407 PMAQI
29th Sep 2025418 PMAQI
29th Sep 2025309 PMAQI
29th Sep 20252610 PMAQI
29th Sep 20252811 PMAQI
30th Sep 20252812 AMAQI
30th Sep 2025251 AMAQI
30th Sep 2025262 AMAQI
30th Sep 2025243 AMAQI
30th Sep 2025204 AMAQI

20°C18/23°C

30th Sep 2025245 AMAQI
30th Sep 2025246 AMAQI
30th Sep 2025207 AMAQI
30th Sep 2025218 AMAQI
30th Sep 2025219 AMAQI
30th Sep 20252310 AMAQI
30th Sep 20253011 AMAQI
30th Sep 20253312 PMAQI
30th Sep 2025341 PMAQI
30th Sep 2025272 PMAQI
30th Sep 2025383 PMAQI
30th Sep 2025414 PMAQI
30th Sep 2025415 PMAQI
30th Sep 2025506 PMAQI
30th Sep 2025387 PMAQI
30th Sep 2025418 PMAQI
30th Sep 2025429 PMAQI
30th Sep 20254210 PMAQI
30th Sep 20254111 PMAQI
1st Oct 20254312 AMAQI
1st Oct 2025371 AMAQI
1st Oct 2025332 AMAQI
1st Oct 2025273 AMAQI
1st Oct 2025264 AMAQI

19°C15/23°C

1st Oct 2025285 AMAQI
1st Oct 2025276 AMAQI
1st Oct 2025287 AMAQI
1st Oct 2025258 AMAQI
1st Oct 2025239 AMAQI
1st Oct 20252210 AMAQI
1st Oct 20252311 AMAQI
1st Oct 20253812 PMAQI
1st Oct 2025531 PMAQI
1st Oct 2025552 PMAQI
1st Oct 2025553 PMAQI
1st Oct 2025554 PMAQI
1st Oct 2025555 PMAQI
1st Oct 2025566 PMAQI
1st Oct 2025557 PMAQI
1st Oct 2025628 PMAQI
1st Oct 2025679 PMAQI
1st Oct 20256710 PMAQI
1st Oct 20256511 PMAQI
2nd Oct 20256212 AMAQI
2nd Oct 2025611 AMAQI
2nd Oct 2025622 AMAQI
2nd Oct 2025623 AMAQI
2nd Oct 2025604 AMAQI

20°C17/24°C

2nd Oct 2025635 AMAQI
2nd Oct 2025646 AMAQI
2nd Oct 2025627 AMAQI
2nd Oct 2025638 AMAQI
2nd Oct 2025649 AMAQI
2nd Oct 20256410 AMAQI
2nd Oct 20256411 AMAQI
2nd Oct 20256512 PMAQI
2nd Oct 2025651 PMAQI
2nd Oct 2025652 PMAQI
2nd Oct 2025663 PMAQI
2nd Oct 2025604 PMAQI
2nd Oct 2025635 PMAQI
2nd Oct 2025656 PMAQI
2nd Oct 2025637 PMAQI
2nd Oct 2025658 PMAQI
2nd Oct 2025709 PMAQI
2nd Oct 20257010 PMAQI
2nd Oct 20256811 PMAQI
3rd Oct 20257012 AMAQI
3rd Oct 2025711 AMAQI
3rd Oct 2025682 AMAQI
3rd Oct 2025703 AMAQI
3rd Oct 2025664 AMAQI

19°C14/22°C

3rd Oct 2025685 AMAQI
3rd Oct 2025706 AMAQI
3rd Oct 2025687 AMAQI
3rd Oct 2025708 AMAQI
3rd Oct 2025689 AMAQI
3rd Oct 20256610 AMAQI
3rd Oct 20256811 AMAQI
3rd Oct 20256712 PMAQI
3rd Oct 2025661 PMAQI
3rd Oct 2025652 PMAQI
3rd Oct 2025643 PMAQI
3rd Oct 2025614 PMAQI
3rd Oct 2025595 PMAQI
3rd Oct 2025636 PMAQI
3rd Oct 2025627 PMAQI
3rd Oct 2025558 PMAQI
3rd Oct 2025709 PMAQI
3rd Oct 20257010 PMAQI
3rd Oct 20257211 PMAQI
4th Oct 20257112 AMAQI
4th Oct 2025681 AMAQI
4th Oct 2025742 AMAQI
4th Oct 2025743 AMAQI
4th Oct 2025704 AMAQI

17°C15/18°C

4th Oct 2025685 AMAQI
4th Oct 2025676 AMAQI
4th Oct 2025687 AMAQI
4th Oct 2025688 AMAQI
4th Oct 2025709 AMAQI
4th Oct 20256810 AMAQI
4th Oct 20256611 AMAQI
4th Oct 20256712 PMAQI
4th Oct 2025731 PMAQI
4th Oct 2025782 PMAQI
4th Oct 2025763 PMAQI
4th Oct 2025774 PMAQI
4th Oct 2025745 PMAQI
4th Oct 2025756 PMAQI
4th Oct 2025747 PMAQI
4th Oct 2025758 PMAQI
4th Oct 2025779 PMAQI
4th Oct 20257810 PMAQI
4th Oct 20257711 PMAQI
5th Oct 20257312 AMAQI
5th Oct 2025731 AMAQI
5th Oct 2025722 AMAQI
5th Oct 2025733 AMAQI
5th Oct 2025754 AMAQI

20°C17/23°C

5th Oct 2025755 AMAQI
5th Oct 2025766 AMAQI
5th Oct 2025727 AMAQI
5th Oct 2025708 AMAQI
5th Oct 2025769 AMAQI
5th Oct 20256610 AMAQI
5th Oct 20257011 AMAQI
5th Oct 20257112 PMAQI
5th Oct 2025651 PMAQI
5th Oct 2025582 PMAQI
5th Oct 2025623 PMAQI
5th Oct 2025594 PMAQI
5th Oct 2025575 PMAQI
5th Oct 2025666 PMAQI
5th Oct 2025667 PMAQI
5th Oct 2025658 PMAQI
5th Oct 2025639 PMAQI
5th Oct 20256610 PMAQI
5th Oct 20256111 PMAQI
6th Oct 20256612 AMAQI
6th Oct 2025611 AMAQI
6th Oct 2025632 AMAQI
6th Oct 2025633 AMAQI
6th Oct 2025644 AMAQI

22°C20/26°C

6th Oct 2025635 AMAQI
5 AM
6th Oct 2025606 AMAQI
6th Oct 2025587 AMAQI
6th Oct 2025598 AMAQI
6th Oct 2025599 AMAQI
6th Oct 20256010 AMAQI
6th Oct 20256011 AMAQI
11 AM
6th Oct 20256012 PMAQI
6th Oct 2025601 PMAQI
6th Oct 2025612 PMAQI
6th Oct 2025623 PMAQI
6th Oct 2025684 PMAQI
6th Oct 2025705 PMAQI
6th Oct 2025726 PMAQI
6 PM
6th Oct 2025727 PMAQI
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
6 PM

43AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
9 AM - 11 AM

34AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 PM to 6 PM (Avg. 43), while the lowest AQI was between 9 AM to 11 AM (Avg. 34).
Night time
Avg. Highest Time
7 PM

43AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 4 AM

37AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 43), while the lowest AQI was between 12 AM to 4 AM (Avg. 37).

2025 Days Vs Air Quality

Saijo, Ehime, Japan

2025

67%

185

32%

90

1%

3

Total number of days with different AQI categories in last 279 days in 2025 (86 days remaining)

Good
185 Days
Moderate
90 Days
Poor
3 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 67%

Health Risk Level:

Moderate

In 2025, 67% of 279 days were within WHO’s safe air quality limits, and 33% 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
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
21st August 2025
41AQI
22nd August 2025
42AQI
23rd August 2025
45AQI
24th August 2025
44AQI
25th August 2025
44AQI
26th August 2025
48AQI
27th August 2025
48AQI
28th August 2025
46AQI
29th August 2025
50AQI
30th August 2025
48AQI
31st August 2025
45AQI
1st September 2025
38AQI
2nd September 2025
33AQI
3rd September 2025
40AQI
4th September 2025
28AQI
5th September 2025
22AQI
6th September 2025
28AQI
7th September 2025
30AQI
8th September 2025
31AQI
9th September 2025
30AQI
10th September 2025
32AQI
11th September 2025
30AQI
12th September 2025
28AQI
13th September 2025
34AQI
14th September 2025
29AQI
15th September 2025
36AQI
16th September 2025
41AQI
17th September 2025
39AQI
18th September 2025
28AQI
19th September 2025
33AQI
20th September 2025
43AQI
21st September 2025
27AQI
22nd September 2025
28AQI
23rd September 2025
29AQI
24th September 2025
33AQI
25th September 2025
29AQI
26th September 2025
33AQI
27th September 2025
37AQI
28th September 2025
41AQI
29th September 2025
28AQI
30th September 2025
32AQI
1st October 2025
43AQI
2nd October 2025
64AQI
3rd October 2025
67AQI
4th October 2025
72AQI
5th October 2025
71AQI
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

43AQI

45AQI

58AQI

51AQI

49AQI

53AQI

55AQI

44AQI

32AQI

63AQI

No. of days

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

202548AQI

25
6
23
5
14
15
2
16
14
19
12
11
19
16
14
1
30
1
30
1
4
185
90
3

Highest AQI recorded in

October

63AQI

Lowest AQI recorded in

September

32AQI

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.)
48AQI
Least Polluted Year Recorded
2021(Avg.)
44AQI

Saijo's annual 2025 AQI (48) shows an average percentage change of 4.5% (worsened AQI) compared to previous years: 2020 (46), 2021 (44), 2022 (46), 2023 (47), 2024 (47).