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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

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
12th Oct 2025
78AQI
Lowest AQI recorded on
19th Oct 2022
26AQI

Same Day Analysis (2nd October):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 34 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.

Day & Night AQI Trend: 1st Oct - 2nd Oct 2026

Saijo, Ehime, Japan

AQI
Day
Night
.

5 AM1st Oct 2026

6 PM

4 AM2nd Oct 2026

Day time
Avg. Highest Time
5PM1st Oct

32AQI

Avg. Lowest Time
11AM1st Oct

23AQI

Night time
Avg. Highest Time
1AM2nd Oct

41AQI

Avg. Lowest Time
5AM1st Oct

25AQI

In the last 24 hours,

Saijo's AQI reached its highest point of 41 at 1 AM during the Night, while the lowest point, 23, was recorded at 11 AM during the Day between 1st Oct and 2nd Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Saijo, Ehime, Japan

SepOct
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd
Day
Night
3rd Sep 2026275 AMAQI
3rd Sep 2026266 AMAQI
3rd Sep 2026267 AMAQI
3rd Sep 2026278 AMAQI
3rd Sep 2026269 AMAQI
3rd Sep 20262710 AMAQI
3rd Sep 20262811 AMAQI
3rd Sep 20262912 PMAQI
3rd Sep 2026261 PMAQI
3rd Sep 2026252 PMAQI
3rd Sep 2026233 PMAQI
3rd Sep 2026234 PMAQI
3rd Sep 2026235 PMAQI
3rd Sep 2026226 PMAQI
3rd Sep 2026217 PMAQI
3rd Sep 2026228 PMAQI
3rd Sep 2026239 PMAQI
3rd Sep 20262110 PMAQI
3rd Sep 20262911 PMAQI
4th Sep 20262512 AMAQI
4th Sep 2026211 AMAQI
4th Sep 2026242 AMAQI
4th Sep 2026233 AMAQI
4th Sep 2026214 AMAQI

20°C17/22°C

4th Sep 2026215 AMAQI
4th Sep 2026256 AMAQI
4th Sep 2026297 AMAQI
4th Sep 2026298 AMAQI
4th Sep 2026259 AMAQI
4th Sep 20262310 AMAQI
4th Sep 20262111 AMAQI
4th Sep 20262112 PMAQI
4th Sep 2026251 PMAQI
4th Sep 2026212 PMAQI
4th Sep 2026213 PMAQI
4th Sep 2026254 PMAQI
4th Sep 2026255 PMAQI
4th Sep 2026276 PMAQI
4th Sep 2026217 PMAQI
4th Sep 2026218 PMAQI
4th Sep 2026239 PMAQI
4th Sep 20262510 PMAQI
4th Sep 20262511 PMAQI
5th Sep 20262512 AMAQI
5th Sep 2026251 AMAQI
5th Sep 2026212 AMAQI
5th Sep 2026233 AMAQI
5th Sep 2026294 AMAQI

18°C15/21°C

5th Sep 2026195 AMAQI
5th Sep 2026186 AMAQI
5th Sep 2026257 AMAQI
5th Sep 2026298 AMAQI
5th Sep 2026259 AMAQI
5th Sep 20262510 AMAQI
5th Sep 20262111 AMAQI
5th Sep 20262112 PMAQI
5th Sep 2026231 PMAQI
5th Sep 2026232 PMAQI
5th Sep 2026253 PMAQI
5th Sep 2026244 PMAQI
5th Sep 2026245 PMAQI
5th Sep 2026236 PMAQI
5th Sep 2026227 PMAQI
5th Sep 2026228 PMAQI
5th Sep 2026219 PMAQI
5th Sep 20262310 PMAQI
5th Sep 20262311 PMAQI
6th Sep 20262412 AMAQI
6th Sep 2026231 AMAQI
6th Sep 2026242 AMAQI
6th Sep 2026243 AMAQI
6th Sep 2026274 AMAQI

18°C17/20°C

6th Sep 2026265 AMAQI
6th Sep 2026266 AMAQI
6th Sep 2026277 AMAQI
6th Sep 2026268 AMAQI
6th Sep 2026279 AMAQI
6th Sep 20262610 AMAQI
6th Sep 20262611 AMAQI
6th Sep 20262512 PMAQI
6th Sep 2026241 PMAQI
6th Sep 2026252 PMAQI
6th Sep 2026263 PMAQI
6th Sep 2026244 PMAQI
6th Sep 2026265 PMAQI
6th Sep 2026276 PMAQI
6th Sep 2026277 PMAQI
6th Sep 2026248 PMAQI
6th Sep 2026239 PMAQI
6th Sep 20262310 PMAQI
6th Sep 20262311 PMAQI
7th Sep 20262112 AMAQI
7th Sep 2026211 AMAQI
7th Sep 2026232 AMAQI
7th Sep 2026213 AMAQI
7th Sep 2026224 AMAQI

18°C17/20°C

7th Sep 2026215 AMAQI
7th Sep 2026236 AMAQI
7th Sep 2026217 AMAQI
7th Sep 2026218 AMAQI
7th Sep 2026219 AMAQI
7th Sep 20262110 AMAQI
7th Sep 20262011 AMAQI
7th Sep 20262112 PMAQI
7th Sep 2026211 PMAQI
7th Sep 2026232 PMAQI
7th Sep 2026213 PMAQI
7th Sep 2026254 PMAQI
7th Sep 2026245 PMAQI
7th Sep 2026236 PMAQI
7th Sep 2026257 PMAQI
7th Sep 2026248 PMAQI
7th Sep 2026229 PMAQI
7th Sep 20262310 PMAQI
7th Sep 20262311 PMAQI
8th Sep 20262312 AMAQI
8th Sep 2026241 AMAQI
8th Sep 2026232 AMAQI
8th Sep 2026243 AMAQI
8th Sep 2026234 AMAQI

19°C17/21°C

8th Sep 2026255 AMAQI
8th Sep 2026256 AMAQI
8th Sep 2026257 AMAQI
8th Sep 2026258 AMAQI
8th Sep 2026259 AMAQI
8th Sep 20262510 AMAQI
8th Sep 20262711 AMAQI
8th Sep 20262512 PMAQI
8th Sep 2026241 PMAQI
8th Sep 2026262 PMAQI
8th Sep 2026243 PMAQI
8th Sep 2026244 PMAQI
8th Sep 2026245 PMAQI
8th Sep 2026236 PMAQI
8th Sep 2026247 PMAQI
8th Sep 2026258 PMAQI
8th Sep 2026249 PMAQI
8th Sep 20262410 PMAQI
8th Sep 20262411 PMAQI
9th Sep 20262212 AMAQI
9th Sep 2026221 AMAQI
9th Sep 2026232 AMAQI
9th Sep 2026233 AMAQI
9th Sep 2026244 AMAQI

21°C20/22°C

9th Sep 2026245 AMAQI
9th Sep 2026216 AMAQI
9th Sep 2026227 AMAQI
9th Sep 2026288 AMAQI
9th Sep 2026229 AMAQI
9th Sep 20262010 AMAQI
9th Sep 20262511 AMAQI
9th Sep 20262712 PMAQI
9th Sep 2026261 PMAQI
9th Sep 2026252 PMAQI
9th Sep 2026213 PMAQI
9th Sep 2026204 PMAQI
9th Sep 2026225 PMAQI
9th Sep 2026216 PMAQI
9th Sep 2026247 PMAQI
9th Sep 2026248 PMAQI
9th Sep 2026279 PMAQI
9th Sep 20262510 PMAQI
9th Sep 20262311 PMAQI
10th Sep 20262312 AMAQI
10th Sep 2026251 AMAQI
10th Sep 2026252 AMAQI
10th Sep 2026243 AMAQI
10th Sep 2026244 AMAQI

18°C15/21°C

10th Sep 2026235 AMAQI
10th Sep 2026236 AMAQI
10th Sep 2026237 AMAQI
10th Sep 2026248 AMAQI
10th Sep 2026239 AMAQI
10th Sep 20262510 AMAQI
10th Sep 20262411 AMAQI
10th Sep 20262212 PMAQI
10th Sep 2026231 PMAQI
10th Sep 2026242 PMAQI
10th Sep 2026233 PMAQI
10th Sep 2026224 PMAQI
10th Sep 2026235 PMAQI
10th Sep 2026236 PMAQI
10th Sep 2026237 PMAQI
10th Sep 2026248 PMAQI
10th Sep 2026269 PMAQI
10th Sep 20262610 PMAQI
10th Sep 20262711 PMAQI
11th Sep 20262612 AMAQI
11th Sep 2026271 AMAQI
11th Sep 2026262 AMAQI
11th Sep 2026273 AMAQI
11th Sep 2026274 AMAQI

16°C14/18°C

11th Sep 2026275 AMAQI
11th Sep 2026296 AMAQI
11th Sep 2026277 AMAQI
11th Sep 2026288 AMAQI
11th Sep 2026279 AMAQI
11th Sep 20262810 AMAQI
11th Sep 20263011 AMAQI
11th Sep 20262912 PMAQI
11th Sep 2026291 PMAQI
11th Sep 2026302 PMAQI
11th Sep 2026273 PMAQI
11th Sep 2026264 PMAQI
11th Sep 2026275 PMAQI
11th Sep 2026266 PMAQI
11th Sep 2026297 PMAQI
11th Sep 2026288 PMAQI
11th Sep 2026329 PMAQI
11th Sep 20263410 PMAQI
11th Sep 20263411 PMAQI
12th Sep 20263412 AMAQI
12th Sep 2026341 AMAQI
12th Sep 2026362 AMAQI
12th Sep 2026343 AMAQI
12th Sep 2026324 AMAQI

20°C18/22°C

12th Sep 2026345 AMAQI
12th Sep 2026316 AMAQI
12th Sep 2026317 AMAQI
12th Sep 2026308 AMAQI
12th Sep 2026319 AMAQI
12th Sep 20263110 AMAQI
12th Sep 20262911 AMAQI
12th Sep 20263212 PMAQI
12th Sep 2026311 PMAQI
12th Sep 2026282 PMAQI
12th Sep 2026303 PMAQI
12th Sep 2026294 PMAQI
12th Sep 2026305 PMAQI
12th Sep 2026326 PMAQI
12th Sep 2026347 PMAQI
12th Sep 2026348 PMAQI
12th Sep 2026369 PMAQI
12th Sep 20263810 PMAQI
12th Sep 20263911 PMAQI
13th Sep 20264212 AMAQI
13th Sep 2026391 AMAQI
13th Sep 2026412 AMAQI
13th Sep 2026403 AMAQI
13th Sep 2026464 AMAQI

20°C19/22°C

13th Sep 2026456 AMAQI
13th Sep 2026447 AMAQI
13th Sep 2026468 AMAQI
13th Sep 2026469 AMAQI
13th Sep 20264510 AMAQI
13th Sep 20264111 AMAQI
13th Sep 20264312 PMAQI
13th Sep 2026561 PMAQI
13th Sep 2026522 PMAQI
13th Sep 2026523 PMAQI
13th Sep 2026544 PMAQI
13th Sep 2026585 PMAQI
13th Sep 2026566 PMAQI
13th Sep 2026587 PMAQI
13th Sep 2026608 PMAQI
13th Sep 2026589 PMAQI
13th Sep 20265610 PMAQI
13th Sep 20265411 PMAQI
14th Sep 20264812 AMAQI
14th Sep 2026461 AMAQI
14th Sep 2026462 AMAQI
14th Sep 2026463 AMAQI
14th Sep 2026444 AMAQI

21°C19/22°C

14th Sep 2026415 AMAQI
14th Sep 2026386 AMAQI
14th Sep 2026387 AMAQI
14th Sep 2026328 AMAQI
14th Sep 2026329 AMAQI
14th Sep 20263210 AMAQI
14th Sep 20263411 AMAQI
14th Sep 20264312 PMAQI
14th Sep 2026411 PMAQI
14th Sep 2026452 PMAQI
14th Sep 2026463 PMAQI
14th Sep 2026414 PMAQI
14th Sep 2026345 PMAQI
14th Sep 2026316 PMAQI
14th Sep 2026207 PMAQI
14th Sep 2026188 PMAQI
14th Sep 2026209 PMAQI
14th Sep 20262510 PMAQI
14th Sep 20262211 PMAQI
15th Sep 20262312 AMAQI
15th Sep 2026171 AMAQI
15th Sep 2026182 AMAQI
15th Sep 2026233 AMAQI
15th Sep 2026234 AMAQI

20°C19/22°C

15th Sep 2026235 AMAQI
15th Sep 2026226 AMAQI
15th Sep 2026237 AMAQI
15th Sep 2026228 AMAQI
15th Sep 2026239 AMAQI
15th Sep 20262110 AMAQI
15th Sep 20261111 AMAQI
15th Sep 20261212 PMAQI
15th Sep 2026101 PMAQI
15th Sep 2026142 PMAQI
15th Sep 2026203 PMAQI
15th Sep 2026164 PMAQI
15th Sep 2026205 PMAQI
15th Sep 2026286 PMAQI
15th Sep 2026277 PMAQI
15th Sep 2026218 PMAQI
15th Sep 2026219 PMAQI
15th Sep 20262210 PMAQI
15th Sep 20262111 PMAQI
16th Sep 20262112 AMAQI
16th Sep 2026231 AMAQI
16th Sep 2026212 AMAQI
16th Sep 2026223 AMAQI
16th Sep 2026214 AMAQI

19°C18/21°C

16th Sep 2026215 AMAQI
16th Sep 2026216 AMAQI
16th Sep 2026227 AMAQI
16th Sep 2026218 AMAQI
16th Sep 2026219 AMAQI
16th Sep 20262310 AMAQI
16th Sep 20262211 AMAQI
16th Sep 20262512 PMAQI
16th Sep 2026271 PMAQI
16th Sep 2026252 PMAQI
16th Sep 2026293 PMAQI
16th Sep 2026234 PMAQI
16th Sep 2026225 PMAQI
16th Sep 2026236 PMAQI
16th Sep 2026227 PMAQI
16th Sep 2026238 PMAQI
16th Sep 2026229 PMAQI
16th Sep 20262510 PMAQI
16th Sep 20262211 PMAQI
17th Sep 20262312 AMAQI
17th Sep 2026231 AMAQI
17th Sep 2026232 AMAQI
17th Sep 2026213 AMAQI
17th Sep 2026234 AMAQI

18°C16/19°C

17th Sep 2026235 AMAQI
17th Sep 2026226 AMAQI
17th Sep 2026237 AMAQI
17th Sep 2026248 AMAQI
17th Sep 2026239 AMAQI
17th Sep 20262110 AMAQI
17th Sep 20262311 AMAQI
17th Sep 20262312 PMAQI
17th Sep 2026231 PMAQI
17th Sep 2026222 PMAQI
17th Sep 2026233 PMAQI
17th Sep 2026224 PMAQI
17th Sep 2026235 PMAQI
17th Sep 2026236 PMAQI
17th Sep 2026237 PMAQI
17th Sep 2026268 PMAQI
17th Sep 2026269 PMAQI
17th Sep 20262510 PMAQI
17th Sep 20262811 PMAQI
18th Sep 20262512 AMAQI
18th Sep 2026261 AMAQI
18th Sep 2026282 AMAQI
18th Sep 2026293 AMAQI
18th Sep 2026274 AMAQI

18°C16/21°C

18th Sep 2026295 AMAQI
18th Sep 2026296 AMAQI
18th Sep 2026297 AMAQI
18th Sep 2026288 AMAQI
18th Sep 2026319 AMAQI
18th Sep 20263010 AMAQI
18th Sep 20263011 AMAQI
18th Sep 20263112 PMAQI
18th Sep 2026301 PMAQI
18th Sep 2026302 PMAQI
18th Sep 2026303 PMAQI
18th Sep 2026334 PMAQI
18th Sep 2026345 PMAQI
18th Sep 2026336 PMAQI
18th Sep 2026347 PMAQI
18th Sep 2026368 PMAQI
18th Sep 2026349 PMAQI
18th Sep 20263210 PMAQI
18th Sep 20262811 PMAQI
19th Sep 20262812 AMAQI
19th Sep 2026271 AMAQI
19th Sep 2026262 AMAQI
19th Sep 2026273 AMAQI
19th Sep 2026234 AMAQI

19°C17/21°C

19th Sep 2026245 AMAQI
19th Sep 2026256 AMAQI
19th Sep 2026247 AMAQI
19th Sep 2026248 AMAQI
19th Sep 2026239 AMAQI
19th Sep 20262310 AMAQI
19th Sep 20262311 AMAQI
19th Sep 20262412 PMAQI
19th Sep 2026251 PMAQI
19th Sep 2026262 PMAQI
19th Sep 2026283 PMAQI
19th Sep 2026284 PMAQI
19th Sep 2026295 PMAQI
19th Sep 2026316 PMAQI
19th Sep 2026347 PMAQI
19th Sep 2026388 PMAQI
19th Sep 2026409 PMAQI
19th Sep 20264010 PMAQI
19th Sep 20264011 PMAQI
20th Sep 20264212 AMAQI
20th Sep 2026441 AMAQI
20th Sep 2026392 AMAQI
20th Sep 2026383 AMAQI
20th Sep 2026374 AMAQI

20°C18/22°C

20th Sep 2026375 AMAQI
20th Sep 2026336 AMAQI
20th Sep 2026327 AMAQI
20th Sep 2026318 AMAQI
20th Sep 2026329 AMAQI
20th Sep 20262810 AMAQI
20th Sep 20262711 AMAQI
20th Sep 20262612 PMAQI
20th Sep 2026251 PMAQI
20th Sep 2026222 PMAQI
20th Sep 2026223 PMAQI
20th Sep 2026214 PMAQI
20th Sep 2026215 PMAQI
20th Sep 2026246 PMAQI
20th Sep 2026227 PMAQI
20th Sep 2026218 PMAQI
20th Sep 2026239 PMAQI
20th Sep 20262510 PMAQI
20th Sep 20262911 PMAQI
21st Sep 20262712 AMAQI
21st Sep 2026251 AMAQI
21st Sep 2026252 AMAQI
21st Sep 2026253 AMAQI
21st Sep 2026254 AMAQI

19°C17/22°C

21st Sep 2026255 AMAQI
21st Sep 2026256 AMAQI
21st Sep 2026257 AMAQI
21st Sep 2026258 AMAQI
21st Sep 2026259 AMAQI
21st Sep 20262510 AMAQI
21st Sep 20262511 AMAQI
21st Sep 20262912 PMAQI
21st Sep 2026231 PMAQI
21st Sep 2026212 PMAQI
21st Sep 2026253 PMAQI
21st Sep 2026234 PMAQI
21st Sep 2026255 PMAQI
21st Sep 2026296 PMAQI
21st Sep 2026217 PMAQI
21st Sep 2026248 PMAQI
21st Sep 2026239 PMAQI
21st Sep 20262310 PMAQI
21st Sep 20262311 PMAQI
22nd Sep 20262312 AMAQI
22nd Sep 2026231 AMAQI
22nd Sep 2026442 AMAQI
22nd Sep 2026583 AMAQI
22nd Sep 2026564 AMAQI

16°C15/17°C

22nd Sep 2026505 AMAQI
22nd Sep 2026436 AMAQI
22nd Sep 2026257 AMAQI
22nd Sep 2026228 AMAQI
22nd Sep 2026239 AMAQI
22nd Sep 20262410 AMAQI
22nd Sep 20262111 AMAQI
22nd Sep 20262312 PMAQI
22nd Sep 2026271 PMAQI
22nd Sep 2026282 PMAQI
22nd Sep 2026273 PMAQI
22nd Sep 2026294 PMAQI
22nd Sep 2026385 PMAQI
22nd Sep 2026366 PMAQI
22nd Sep 2026327 PMAQI
22nd Sep 2026338 PMAQI
22nd Sep 2026349 PMAQI
22nd Sep 20263510 PMAQI
22nd Sep 20263311 PMAQI
23rd Sep 20263112 AMAQI
23rd Sep 2026291 AMAQI
23rd Sep 2026272 AMAQI
23rd Sep 2026283 AMAQI
23rd Sep 2026294 AMAQI

17°C14/22°C

23rd Sep 2026265 AMAQI
23rd Sep 2026276 AMAQI
23rd Sep 2026287 AMAQI
23rd Sep 2026288 AMAQI
23rd Sep 2026269 AMAQI
23rd Sep 20262610 AMAQI
23rd Sep 20262911 AMAQI
23rd Sep 20262912 PMAQI
23rd Sep 2026301 PMAQI
23rd Sep 2026312 PMAQI
23rd Sep 2026283 PMAQI
23rd Sep 2026284 PMAQI
23rd Sep 2026275 PMAQI
23rd Sep 2026316 PMAQI
23rd Sep 2026317 PMAQI
23rd Sep 2026338 PMAQI
23rd Sep 2026349 PMAQI
23rd Sep 20263710 PMAQI
23rd Sep 20263811 PMAQI
24th Sep 20264112 AMAQI
24th Sep 2026441 AMAQI
24th Sep 2026462 AMAQI
24th Sep 2026503 AMAQI
24th Sep 2026504 AMAQI

19°C15/23°C

24th Sep 2026525 AMAQI
24th Sep 2026526 AMAQI
24th Sep 2026527 AMAQI
24th Sep 2026548 AMAQI
24th Sep 2026559 AMAQI
24th Sep 20265610 AMAQI
24th Sep 20265411 AMAQI
24th Sep 20265212 PMAQI
24th Sep 2026501 PMAQI
24th Sep 2026502 PMAQI
24th Sep 2026503 PMAQI
24th Sep 2026524 PMAQI
24th Sep 2026525 PMAQI
24th Sep 2026546 PMAQI
24th Sep 2026537 PMAQI
24th Sep 2026558 PMAQI
24th Sep 2026569 PMAQI
24th Sep 20266610 PMAQI
24th Sep 20265911 PMAQI
25th Sep 20265912 AMAQI
25th Sep 2026441 AMAQI
25th Sep 2026502 AMAQI
25th Sep 2026523 AMAQI
25th Sep 2026524 AMAQI

19°C17/24°C

25th Sep 2026525 AMAQI
25th Sep 2026556 AMAQI
25th Sep 2026557 AMAQI
25th Sep 2026558 AMAQI
25th Sep 2026549 AMAQI
25th Sep 20265010 AMAQI
25th Sep 20265011 AMAQI
25th Sep 20265412 PMAQI
25th Sep 2026561 PMAQI
25th Sep 2026542 PMAQI
25th Sep 2026543 PMAQI
25th Sep 2026564 PMAQI
25th Sep 2026515 PMAQI
25th Sep 2026496 PMAQI
25th Sep 2026537 PMAQI
25th Sep 2026498 PMAQI
25th Sep 2026509 PMAQI
25th Sep 20264610 PMAQI
25th Sep 20265211 PMAQI
26th Sep 20264812 AMAQI
26th Sep 2026501 AMAQI
26th Sep 2026482 AMAQI
26th Sep 2026543 AMAQI
26th Sep 2026504 AMAQI

18°C16/23°C

26th Sep 2026545 AMAQI
26th Sep 2026566 AMAQI
26th Sep 2026577 AMAQI
26th Sep 2026568 AMAQI
26th Sep 2026559 AMAQI
26th Sep 20265410 AMAQI
26th Sep 20265411 AMAQI
26th Sep 20265612 PMAQI
26th Sep 2026601 PMAQI
26th Sep 2026602 PMAQI
26th Sep 2026603 PMAQI
26th Sep 2026584 PMAQI
26th Sep 2026525 PMAQI
26th Sep 2026516 PMAQI
26th Sep 2026407 PMAQI
26th Sep 2026348 PMAQI
26th Sep 2026309 PMAQI
26th Sep 20262410 PMAQI
26th Sep 20262111 PMAQI
27th Sep 20262412 AMAQI
27th Sep 2026201 AMAQI
27th Sep 2026122 AMAQI
27th Sep 2026163 AMAQI
27th Sep 2026124 AMAQI

17°C16/18°C

27th Sep 2026145 AMAQI
27th Sep 2026126 AMAQI
27th Sep 2026117 AMAQI
27th Sep 2026148 AMAQI
27th Sep 2026109 AMAQI
27th Sep 20261410 AMAQI
27th Sep 20261411 AMAQI
27th Sep 20261012 PMAQI
27th Sep 2026171 PMAQI
27th Sep 2026142 PMAQI
27th Sep 2026163 PMAQI
27th Sep 2026164 PMAQI
27th Sep 2026275 PMAQI
27th Sep 2026266 PMAQI
27th Sep 2026207 PMAQI
27th Sep 2026148 PMAQI
27th Sep 2026189 PMAQI
27th Sep 20261610 PMAQI
27th Sep 20261811 PMAQI
28th Sep 20261812 AMAQI
28th Sep 2026201 AMAQI
28th Sep 2026242 AMAQI
28th Sep 2026193 AMAQI
28th Sep 2026234 AMAQI

17°C16/19°C

28th Sep 2026235 AMAQI
28th Sep 2026196 AMAQI
28th Sep 2026237 AMAQI
28th Sep 2026258 AMAQI
28th Sep 2026249 AMAQI
28th Sep 20262210 AMAQI
28th Sep 20262311 AMAQI
28th Sep 20262712 PMAQI
28th Sep 2026211 PMAQI
28th Sep 2026212 PMAQI
28th Sep 2026233 PMAQI
28th Sep 2026254 PMAQI
28th Sep 2026295 PMAQI
28th Sep 2026286 PMAQI
28th Sep 2026257 PMAQI
28th Sep 2026238 PMAQI
28th Sep 2026239 PMAQI
28th Sep 20263010 PMAQI
28th Sep 20262911 PMAQI
29th Sep 20262512 AMAQI
29th Sep 2026241 AMAQI
29th Sep 2026252 AMAQI
29th Sep 2026253 AMAQI
29th Sep 2026244 AMAQI

19°C16/21°C

29th Sep 2026245 AMAQI
29th Sep 2026226 AMAQI
29th Sep 2026227 AMAQI
29th Sep 2026218 AMAQI
29th Sep 2026229 AMAQI
29th Sep 20262210 AMAQI
29th Sep 20262411 AMAQI
29th Sep 20262312 PMAQI
29th Sep 2026231 PMAQI
29th Sep 2026232 PMAQI
29th Sep 2026213 PMAQI
29th Sep 2026224 PMAQI
29th Sep 2026235 PMAQI
29th Sep 2026246 PMAQI
29th Sep 2026317 PMAQI
29th Sep 2026278 PMAQI
29th Sep 2026259 PMAQI
29th Sep 20262410 PMAQI
29th Sep 20262511 PMAQI
30th Sep 20262312 AMAQI
30th Sep 2026211 AMAQI
30th Sep 2026252 AMAQI
30th Sep 2026253 AMAQI
30th Sep 2026264 AMAQI

15°C14/17°C

30th Sep 2026255 AMAQI
30th Sep 2026226 AMAQI
30th Sep 2026217 AMAQI
30th Sep 2026238 AMAQI
30th Sep 2026259 AMAQI
30th Sep 20262310 AMAQI
30th Sep 20262511 AMAQI
30th Sep 20262712 PMAQI
30th Sep 2026251 PMAQI
30th Sep 2026242 PMAQI
30th Sep 2026253 PMAQI
30th Sep 2026234 PMAQI
30th Sep 2026235 PMAQI
30th Sep 2026256 PMAQI
30th Sep 2026297 PMAQI
30th Sep 2026328 PMAQI
30th Sep 2026289 PMAQI
30th Sep 20262710 PMAQI
30th Sep 20262611 PMAQI
1st Oct 20262612 AMAQI
1st Oct 2026251 AMAQI
1st Oct 2026252 AMAQI
1st Oct 2026273 AMAQI
1st Oct 2026274 AMAQI

18°C14/23°C

1st Oct 2026255 AMAQI
1st Oct 2026266 AMAQI
1st Oct 2026257 AMAQI
1st Oct 2026248 AMAQI
1st Oct 2026269 AMAQI
1st Oct 20262310 AMAQI
1st Oct 20262311 AMAQI
1st Oct 20262412 PMAQI
1st Oct 2026261 PMAQI
1st Oct 2026272 PMAQI
1st Oct 2026283 PMAQI
1st Oct 2026304 PMAQI
1st Oct 2026325 PMAQI
1st Oct 2026346 PMAQI
1st Oct 2026367 PMAQI
1st Oct 2026368 PMAQI
1st Oct 2026369 PMAQI
1st Oct 20263610 PMAQI
1st Oct 20263811 PMAQI
2nd Oct 20264012 AMAQI
2nd Oct 2026411 AMAQI
2nd Oct 2026382 AMAQI
2nd Oct 2026383 AMAQI
2nd Oct 2026394 AMAQI

18°C15/21°C

2nd Oct 2026415 AMAQI
5 AM
2nd Oct 2026406 AMAQI
2nd Oct 2026397 AMAQI
2nd Oct 2026388 AMAQI
2nd Oct 2026379 AMAQI
2nd Oct 20264010 AMAQI
2nd Oct 20263411 AMAQI
11 AM
2nd Oct 20263212 PMAQI
2nd Oct 2026311 PMAQI
2nd Oct 2026312 PMAQI
2nd Oct 2026293 PMAQI
2nd Oct 2026284 PMAQI
2nd Oct 2026275 PMAQI
2nd Oct 2026276 PMAQI
6 PM
2nd Oct 2026277 PMAQI
2nd Oct 2026298 PMAQI
2nd Oct 2026279 PMAQI
2nd Oct 20262610 PMAQI
2nd Oct 20262511 PMAQI
11 PM
4 AM

14°C11/17°C

Day time
Avg. Highest Time
5 AM

30AQI

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

28AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 AM (Avg. 30), while the lowest AQI was between 10 AM to 11 AM (Avg. 28).
Night time
Avg. Highest Time
12 AM

30AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM - 2 AM

29AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 30), while the lowest AQI was between 1 AM to 2 AM (Avg. 29).

2026 Days Vs Air Quality

Saijo, Ehime, Japan

2026

79%

218

21%

57

Total number of days with different AQI categories in last 275 days in 2026 (90 days remaining)

Good
218 Days
Moderate
57 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 79%

Health Risk Level:

Low

In 2026, 79% of 275 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

Saijo, Ehime, Japan

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
32AQI (US)
2nd January 2026
27AQI (US)
3rd January 2026
32AQI (US)
4th January 2026
44AQI (US)
5th January 2026
56AQI (US)
6th January 2026
33AQI (US)
7th January 2026
36AQI (US)
8th January 2026
44AQI (US)
9th January 2026
26AQI (US)
10th January 2026
34AQI (US)
11th January 2026
33AQI (US)
12th January 2026
28AQI (US)
13th January 2026
34AQI (US)
14th January 2026
30AQI (US)
15th January 2026
58AQI (US)
16th January 2026
64AQI (US)
17th January 2026
66AQI (US)
18th January 2026
66AQI (US)
19th January 2026
73AQI (US)
20th January 2026
32AQI (US)
21st January 2026
20AQI (US)
22nd January 2026
28AQI (US)
23rd January 2026
35AQI (US)
24th January 2026
47AQI (US)
25th January 2026
40AQI (US)
26th January 2026
20AQI (US)
27th January 2026
44AQI (US)
28th January 2026
36AQI (US)
29th January 2026
38AQI (US)
30th January 2026
28AQI (US)
31st January 2026
22AQI (US)
1st February 2026
44AQI (US)
2nd February 2026
48AQI (US)
3rd February 2026
32AQI (US)
4th February 2026
34AQI (US)
5th February 2026
41AQI (US)
6th February 2026
45AQI (US)
7th February 2026
28AQI (US)
8th February 2026
23AQI (US)
9th February 2026
38AQI (US)
10th February 2026
45AQI (US)
11th February 2026
52AQI (US)
12th February 2026
43AQI (US)
13th February 2026
40AQI (US)
14th February 2026
62AQI (US)
15th February 2026
76AQI (US)
16th February 2026
54AQI (US)
17th February 2026
28AQI (US)
18th February 2026
24AQI (US)
19th February 2026
50AQI (US)
20th February 2026
48AQI (US)
21st February 2026
68AQI (US)
22nd February 2026
74AQI (US)
23rd February 2026
68AQI (US)
24th February 2026
54AQI (US)
25th February 2026
38AQI (US)
26th February 2026
25AQI (US)
27th February 2026
52AQI (US)
28th February 2026
20AQI (US)
1st March 2026
34AQI (US)
2nd March 2026
60AQI (US)
3rd March 2026
41AQI (US)
4th March 2026
28AQI (US)
5th March 2026
49AQI (US)
6th March 2026
49AQI (US)
7th March 2026
40AQI (US)
8th March 2026
28AQI (US)
9th March 2026
42AQI (US)
10th March 2026
56AQI (US)
11th March 2026
54AQI (US)
12th March 2026
58AQI (US)
13th March 2026
37AQI (US)
14th March 2026
42AQI (US)
15th March 2026
60AQI (US)
16th March 2026
50AQI (US)
17th March 2026
45AQI (US)
18th March 2026
60AQI (US)
19th March 2026
50AQI (US)
20th March 2026
60AQI (US)
21st March 2026
46AQI (US)
22nd March 2026
58AQI (US)
23rd March 2026
58AQI (US)
24th March 2026
55AQI (US)
25th March 2026
56AQI (US)
26th March 2026
16AQI (US)
27th March 2026
38AQI (US)
28th March 2026
69AQI (US)
29th March 2026
82AQI (US)
30th March 2026
88AQI (US)
31st March 2026
28AQI (US)
1st April 2026
16AQI (US)
2nd April 2026
48AQI (US)
3rd April 2026
54AQI (US)
4th April 2026
42AQI (US)
5th April 2026
24AQI (US)
6th April 2026
54AQI (US)
7th April 2026
40AQI (US)
8th April 2026
39AQI (US)
9th April 2026
48AQI (US)
10th April 2026
36AQI (US)
11th April 2026
35AQI (US)
12th April 2026
36AQI (US)
13th April 2026
46AQI (US)
14th April 2026
70AQI (US)
15th April 2026
60AQI (US)
16th April 2026
26AQI (US)
17th April 2026
42AQI (US)
18th April 2026
50AQI (US)
19th April 2026
50AQI (US)
20th April 2026
45AQI (US)
21st April 2026
38AQI (US)
22nd April 2026
43AQI (US)
23rd April 2026
32AQI (US)
24th April 2026
20AQI (US)
25th April 2026
46AQI (US)
26th April 2026
44AQI (US)
27th April 2026
42AQI (US)
28th April 2026
52AQI (US)
29th April 2026
45AQI (US)
30th April 2026
29AQI (US)
1st May 2026
40AQI (US)
2nd May 2026
52AQI (US)
3rd May 2026
43AQI (US)
4th May 2026
28AQI (US)
5th May 2026
26AQI (US)
6th May 2026
29AQI (US)
7th May 2026
38AQI (US)
8th May 2026
30AQI (US)
9th May 2026
28AQI (US)
10th May 2026
33AQI (US)
11th May 2026
34AQI (US)
12th May 2026
32AQI (US)
13th May 2026
38AQI (US)
14th May 2026
30AQI (US)
15th May 2026
34AQI (US)
16th May 2026
78AQI (US)
17th May 2026
64AQI (US)
18th May 2026
53AQI (US)
19th May 2026
46AQI (US)
20th May 2026
60AQI (US)
21st May 2026
65AQI (US)
22nd May 2026
69AQI (US)
23rd May 2026
60AQI (US)
24th May 2026
62AQI (US)
25th May 2026
54AQI (US)
26th May 2026
42AQI (US)
27th May 2026
26AQI (US)
28th May 2026
26AQI (US)
29th May 2026
26AQI (US)
30th May 2026
25AQI (US)
31st May 2026
28AQI (US)
1st June 2026
33AQI (US)
2nd June 2026
24AQI (US)
3rd June 2026
18AQI (US)
4th June 2026
26AQI (US)
5th June 2026
23AQI (US)
6th June 2026
26AQI (US)
7th June 2026
24AQI (US)
8th June 2026
20AQI (US)
9th June 2026
23AQI (US)
10th June 2026
23AQI (US)
11th June 2026
26AQI (US)
12th June 2026
26AQI (US)
13th June 2026
27AQI (US)
14th June 2026
28AQI (US)
15th June 2026
26AQI (US)
16th June 2026
28AQI (US)
17th June 2026
24AQI (US)
18th June 2026
27AQI (US)
19th June 2026
38AQI (US)
20th June 2026
56AQI (US)
21st June 2026
20AQI (US)
22nd June 2026
14AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
21AQI (US)
25th June 2026
26AQI (US)
26th June 2026
26AQI (US)
27th June 2026
26AQI (US)
28th June 2026
34AQI (US)
29th June 2026
28AQI (US)
30th June 2026
46AQI (US)
1st July 2026
60AQI (US)
2nd July 2026
14AQI (US)
3rd July 2026
26AQI (US)
4th July 2026
25AQI (US)
5th July 2026
22AQI (US)
6th July 2026
22AQI (US)
7th July 2026
30AQI (US)
8th July 2026
54AQI (US)
9th July 2026
36AQI (US)
10th July 2026
32AQI (US)
11th July 2026
30AQI (US)
12th July 2026
28AQI (US)
13th July 2026
29AQI (US)
14th July 2026
28AQI (US)
15th July 2026
26AQI (US)
16th July 2026
28AQI (US)
17th July 2026
37AQI (US)
18th July 2026
56AQI (US)
19th July 2026
60AQI (US)
20th July 2026
60AQI (US)
21st July 2026
64AQI (US)
22nd July 2026
66AQI (US)
23rd July 2026
60AQI (US)
24th July 2026
58AQI (US)
25th July 2026
54AQI (US)
26th July 2026
48AQI (US)
27th July 2026
42AQI (US)
28th July 2026
38AQI (US)
29th July 2026
28AQI (US)
30th July 2026
28AQI (US)
31st July 2026
30AQI (US)
1st August 2026
42AQI (US)
2nd August 2026
42AQI (US)
3rd August 2026
46AQI (US)
4th August 2026
48AQI (US)
5th August 2026
47AQI (US)
6th August 2026
27AQI (US)
7th August 2026
24AQI (US)
8th August 2026
24AQI (US)
9th August 2026
22AQI (US)
10th August 2026
32AQI (US)
11th August 2026
25AQI (US)
12th August 2026
24AQI (US)
13th August 2026
24AQI (US)
14th August 2026
40AQI (US)
15th August 2026
36AQI (US)
16th August 2026
30AQI (US)
17th August 2026
24AQI (US)
18th August 2026
24AQI (US)
19th August 2026
22AQI (US)
20th August 2026
24AQI (US)
21st August 2026
30AQI (US)
22nd August 2026
29AQI (US)
23rd August 2026
33AQI (US)
24th August 2026
33AQI (US)
25th August 2026
32AQI (US)
26th August 2026
28AQI (US)
27th August 2026
22AQI (US)
28th August 2026
22AQI (US)
29th August 2026
22AQI (US)
30th August 2026
31AQI (US)
31st August 2026
41AQI (US)
1st September 2026
34AQI (US)
2nd September 2026
24AQI (US)
3rd September 2026
25AQI (US)
4th September 2026
24AQI (US)
5th September 2026
24AQI (US)
6th September 2026
26AQI (US)
7th September 2026
22AQI (US)
8th September 2026
24AQI (US)
9th September 2026
24AQI (US)
10th September 2026
24AQI (US)
11th September 2026
28AQI (US)
12th September 2026
32AQI (US)
13th September 2026
49AQI (US)
14th September 2026
36AQI (US)
15th September 2026
20AQI (US)
16th September 2026
22AQI (US)
17th September 2026
24AQI (US)
18th September 2026
30AQI (US)
19th September 2026
28AQI (US)
20th September 2026
30AQI (US)
21st September 2026
25AQI (US)
22nd September 2026
32AQI (US)
23rd September 2026
30AQI (US)
24th September 2026
52AQI (US)
25th September 2026
52AQI (US)
26th September 2026
50AQI (US)
27th September 2026
16AQI (US)
28th September 2026
24AQI (US)
29th September 2026
24AQI (US)
30th September 2026
24AQI (US)
1st October 2026
28AQI (US)
2nd October 2026
34AQI (US)
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

39AQI (US)

45AQI (US)

50AQI (US)

42AQI (US)

42AQI (US)

27AQI (US)

39AQI (US)

31AQI (US)

29AQI (US)

31AQI (US)

No. of days

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

202638AQI (US)

25
6
19
9
17
14
25
5
21
10
29
1
21
10
31
28
2
2
218
57

Highest AQI (US) recorded in

March

50AQI (US)

Lowest AQI (US) recorded in

June

27AQI (US)

202550AQI (US)

25
6
23
5
14
15
2
16
14
19
12
11
19
16
14
1
30
1
30
6
25
4
26
14
17
208
154
3

Highest AQI (US) recorded in

October

59AQI (US)

Lowest AQI (US) recorded in

September

32AQI (US)

202447AQI (US)

26
5
21
7
1
17
14
7
21
2
10
21
13
17
26
5
22
9
21
9
26
5
21
9
31
241
122
3

Highest AQI (US) recorded in

April

66AQI (US)

Lowest AQI (US) recorded in

December

34AQI (US)

202347AQI (US)

23
8
21
7
10
21
10
20
17
14
12
18
21
10
31
25
5
24
7
21
8
22
9
237
127

Highest AQI (US) recorded in

April

59AQI (US)

Lowest AQI (US) recorded in

August

34AQI (US)

202246AQI (US)

24
6
18
3
13
18
16
14
8
23
13
17
14
8
1
23
6
23
8
20
10
29
2
202
115

Highest AQI (US) recorded in

May

58AQI (US)

Lowest AQI (US) recorded in

December

37AQI (US)

202144AQI (US)

22
8
19
9
17
12
16
5
19
12
11
19
22
9
25
6
23
7
22
9
22
8
29
2
247
106

Highest AQI (US) recorded in

June

56AQI (US)

Lowest AQI (US) recorded in

December

38AQI (US)

202046AQI (US)

6
6
1
15
6
8
10
15
15
23
8
13
15
3
17
2
24
7
23
7
26
5
170
81
4

Highest AQI (US) recorded in

August

63AQI (US)

Lowest AQI (US) recorded in

September

36AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
50AQI (US)
Least Polluted Year Recorded
2026(Avg.)
38AQI (US)

Saijo's annual 2026 AQI (US) (38) shows an average percentage change of -18.4% (improved AQI (US)) compared to previous years: 2020 (46), 2021 (44), 2022 (46), 2023 (47), 2024 (47), 2025 (50).