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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Uchiko, 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+

September Air Quality Analysis

Uchiko, Ehime, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
20th Sep 2023
64AQI
Lowest AQI recorded on
4th Sep 2022
11AQI

Same Day Analysis (30th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 28 of Good air quality, showing improvement over 2025, 2023 and 2022 on the same day.

Day & Night AQI Trend: 29th Sep - 30th Sep 2026

Uchiko, Ehime, Japan

AQI
Day
Night
.

5 AM29th Sep 2026

6 PM

4 AM30th Sep 2026

Day time
Avg. Highest Time
6AM29th Sep

25AQI

Avg. Lowest Time
11AM29th Sep

21AQI

Night time
Avg. Highest Time
4AM30th Sep

29AQI

Avg. Lowest Time
9PM29th Sep

21AQI

In the last 24 hours,

Uchiko's AQI reached its highest point of 29 at 4 AM during the Night, while the lowest point, 21, was recorded at 9 PM during the Night between 29th Sep and 30th Sep 2026.

Day & Night AQI Trend : Sep 2026

Uchiko, Ehime, Japan

Sep
01st - 02nd02nd - 03rd03rd - 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
Day
Night
1st Sep 2026295 AMAQI
1st Sep 2026256 AMAQI
1st Sep 2026237 AMAQI
1st Sep 2026218 AMAQI
1st Sep 2026299 AMAQI
1st Sep 20262910 AMAQI
1st Sep 20262311 AMAQI
1st Sep 20262512 PMAQI
1st Sep 2026291 PMAQI
1st Sep 2026292 PMAQI
1st Sep 2026253 PMAQI
1st Sep 2026234 PMAQI
1st Sep 2026255 PMAQI
1st Sep 2026256 PMAQI
1st Sep 2026257 PMAQI
1st Sep 2026258 PMAQI
1st Sep 2026259 PMAQI
1st Sep 20262110 PMAQI
1st Sep 20262511 PMAQI
2nd Sep 20262512 AMAQI
2nd Sep 2026211 AMAQI
2nd Sep 2026212 AMAQI
2nd Sep 2026213 AMAQI
2nd Sep 2026214 AMAQI

26°C22/30°C

2nd Sep 2026255 AMAQI
2nd Sep 2026256 AMAQI
2nd Sep 2026257 AMAQI
2nd Sep 2026258 AMAQI
2nd Sep 2026259 AMAQI
2nd Sep 20262110 AMAQI
2nd Sep 20262911 AMAQI
2nd Sep 20262912 PMAQI
2nd Sep 2026251 PMAQI
2nd Sep 2026212 PMAQI
2nd Sep 2026293 PMAQI
2nd Sep 2026214 PMAQI
2nd Sep 2026255 PMAQI
2nd Sep 2026256 PMAQI
2nd Sep 2026297 PMAQI
2nd Sep 2026388 PMAQI
2nd Sep 2026339 PMAQI
2nd Sep 20262910 PMAQI
2nd Sep 20263311 PMAQI
3rd Sep 20262512 AMAQI
3rd Sep 2026331 AMAQI
3rd Sep 2026292 AMAQI
3rd Sep 2026213 AMAQI
3rd Sep 2026294 AMAQI

25°C23/29°C

3rd Sep 2026295 AMAQI
3rd Sep 2026296 AMAQI
3rd Sep 2026257 AMAQI
3rd Sep 2026258 AMAQI
3rd Sep 2026259 AMAQI
3rd Sep 20262510 AMAQI
3rd Sep 20262511 AMAQI
3rd Sep 20262112 PMAQI
3rd Sep 2026271 PMAQI
3rd Sep 2026292 PMAQI
3rd Sep 2026253 PMAQI
3rd Sep 2026254 PMAQI
3rd Sep 2026255 PMAQI
3rd Sep 2026296 PMAQI
3rd Sep 2026257 PMAQI
3rd Sep 2026258 PMAQI
3rd Sep 2026259 PMAQI
3rd Sep 20262510 PMAQI
3rd Sep 20262511 PMAQI
4th Sep 20262912 AMAQI
4th Sep 2026251 AMAQI
4th Sep 2026272 AMAQI
4th Sep 2026253 AMAQI
4th Sep 2026214 AMAQI

23°C21/24°C

4th Sep 2026215 AMAQI
4th Sep 2026236 AMAQI
4th Sep 2026297 AMAQI
4th Sep 2026318 AMAQI
4th Sep 2026389 AMAQI
4th Sep 20263310 AMAQI
4th Sep 20262311 AMAQI
4th Sep 20262512 PMAQI
4th Sep 2026251 PMAQI
4th Sep 2026212 PMAQI
4th Sep 2026253 PMAQI
4th Sep 2026254 PMAQI
4th Sep 2026255 PMAQI
4th Sep 2026256 PMAQI
4th Sep 2026217 PMAQI
4th Sep 2026218 PMAQI
4th Sep 2026219 PMAQI
4th Sep 20262110 PMAQI
4th Sep 2026911 PMAQI
5th Sep 20262912 AMAQI
5th Sep 2026291 AMAQI
5th Sep 202692 AMAQI
5th Sep 2026213 AMAQI
5th Sep 2026384 AMAQI

21°C20/23°C

5th Sep 2026255 AMAQI
5th Sep 2026256 AMAQI
5th Sep 2026337 AMAQI
5th Sep 2026338 AMAQI
5th Sep 2026339 AMAQI
5th Sep 20262510 AMAQI
5th Sep 20262511 AMAQI
5th Sep 20262112 PMAQI
5th Sep 2026251 PMAQI
5th Sep 2026212 PMAQI
5th Sep 2026253 PMAQI
5th Sep 2026214 PMAQI
5th Sep 2026255 PMAQI
5th Sep 2026296 PMAQI
5th Sep 2026257 PMAQI
5th Sep 2026258 PMAQI
5th Sep 2026259 PMAQI
5th Sep 20262510 PMAQI
5th Sep 20262511 PMAQI
6th Sep 20262512 AMAQI
6th Sep 2026211 AMAQI
6th Sep 2026252 AMAQI
6th Sep 2026253 AMAQI
6th Sep 2026254 AMAQI

21°C19/24°C

6th Sep 2026255 AMAQI
6th Sep 2026216 AMAQI
6th Sep 2026257 AMAQI
6th Sep 2026298 AMAQI
6th Sep 2026299 AMAQI
6th Sep 20262510 AMAQI
6th Sep 20262111 AMAQI
6th Sep 20262512 PMAQI
6th Sep 2026251 PMAQI
6th Sep 2026292 PMAQI
6th Sep 2026253 PMAQI
6th Sep 2026294 PMAQI
6th Sep 2026255 PMAQI
6th Sep 2026296 PMAQI
6th Sep 2026257 PMAQI
6th Sep 2026258 PMAQI
6th Sep 2026259 PMAQI
6th Sep 20262510 PMAQI
6th Sep 20262111 PMAQI
7th Sep 20262112 AMAQI
7th Sep 2026211 AMAQI
7th Sep 2026252 AMAQI
7th Sep 2026253 AMAQI
7th Sep 2026254 AMAQI

22°C22/24°C

7th Sep 2026255 AMAQI
7th Sep 2026256 AMAQI
7th Sep 2026217 AMAQI
7th Sep 2026218 AMAQI
7th Sep 2026219 AMAQI
7th Sep 20262110 AMAQI
7th Sep 20262111 AMAQI
7th Sep 20262112 PMAQI
7th Sep 2026211 PMAQI
7th Sep 2026252 PMAQI
7th Sep 2026253 PMAQI
7th Sep 2026254 PMAQI
7th Sep 2026255 PMAQI
7th Sep 2026256 PMAQI
7th Sep 2026257 PMAQI
7th Sep 2026218 PMAQI
7th Sep 2026259 PMAQI
7th Sep 20262510 PMAQI
7th Sep 20262911 PMAQI
8th Sep 20262512 AMAQI
8th Sep 2026251 AMAQI
8th Sep 2026252 AMAQI
8th Sep 2026253 AMAQI
8th Sep 2026254 AMAQI

24°C22/28°C

8th Sep 2026215 AMAQI
8th Sep 2026256 AMAQI
8th Sep 2026257 AMAQI
8th Sep 2026298 AMAQI
8th Sep 2026259 AMAQI
8th Sep 20262510 AMAQI
8th Sep 20262511 AMAQI
8th Sep 20262512 PMAQI
8th Sep 2026271 PMAQI
8th Sep 2026272 PMAQI
8th Sep 2026253 PMAQI
8th Sep 2026254 PMAQI
8th Sep 2026255 PMAQI
8th Sep 2026256 PMAQI
8th Sep 2026297 PMAQI
8th Sep 2026258 PMAQI
8th Sep 2026239 PMAQI
8th Sep 20262510 PMAQI
8th Sep 20262511 PMAQI
9th Sep 20262112 AMAQI
9th Sep 2026211 AMAQI
9th Sep 2026302 AMAQI
9th Sep 2026253 AMAQI
9th Sep 2026254 AMAQI

24°C23/27°C

9th Sep 2026155 AMAQI
9th Sep 2026216 AMAQI
9th Sep 2026107 AMAQI
9th Sep 2026298 AMAQI
9th Sep 2026219 AMAQI
9th Sep 20262510 AMAQI
9th Sep 20262511 AMAQI
9th Sep 2026912 PMAQI
9th Sep 2026311 PMAQI
9th Sep 2026272 PMAQI
9th Sep 2026253 PMAQI
9th Sep 2026294 PMAQI
9th Sep 2026255 PMAQI
9th Sep 2026256 PMAQI
9th Sep 2026277 PMAQI
9th Sep 2026278 PMAQI
9th Sep 2026259 PMAQI
9th Sep 20262510 PMAQI
9th Sep 20262711 PMAQI
10th Sep 20262512 AMAQI
10th Sep 2026211 AMAQI
10th Sep 2026252 AMAQI
10th Sep 2026253 AMAQI
10th Sep 2026254 AMAQI

23°C21/25°C

10th Sep 2026255 AMAQI
10th Sep 2026256 AMAQI
10th Sep 2026217 AMAQI
10th Sep 2026258 AMAQI
10th Sep 2026259 AMAQI
10th Sep 20262310 AMAQI
10th Sep 20262311 AMAQI
10th Sep 20262112 PMAQI
10th Sep 2026211 PMAQI
10th Sep 2026232 PMAQI
10th Sep 2026293 PMAQI
10th Sep 2026254 PMAQI
10th Sep 2026295 PMAQI
10th Sep 2026256 PMAQI
10th Sep 2026297 PMAQI
10th Sep 2026258 PMAQI
10th Sep 2026259 PMAQI
10th Sep 20262510 PMAQI
10th Sep 20262511 PMAQI
11th Sep 20262512 AMAQI
11th Sep 2026291 AMAQI
11th Sep 2026252 AMAQI
11th Sep 2026253 AMAQI
11th Sep 2026254 AMAQI

21°C20/22°C

11th Sep 2026295 AMAQI
11th Sep 2026256 AMAQI
11th Sep 2026217 AMAQI
11th Sep 2026258 AMAQI
11th Sep 2026339 AMAQI
11th Sep 20262510 AMAQI
11th Sep 20262911 AMAQI
11th Sep 20262512 PMAQI
11th Sep 2026251 PMAQI
11th Sep 2026252 PMAQI
11th Sep 2026253 PMAQI
11th Sep 2026334 PMAQI
11th Sep 2026255 PMAQI
11th Sep 2026296 PMAQI
11th Sep 2026237 PMAQI
11th Sep 2026278 PMAQI
11th Sep 2026279 PMAQI
11th Sep 20262710 PMAQI
11th Sep 20262911 PMAQI
12th Sep 20263112 AMAQI
12th Sep 2026291 AMAQI
12th Sep 2026312 AMAQI
12th Sep 2026333 AMAQI
12th Sep 2026364 AMAQI

24°C22/26°C

12th Sep 2026385 AMAQI
12th Sep 2026386 AMAQI
12th Sep 2026387 AMAQI
12th Sep 2026338 AMAQI
12th Sep 2026369 AMAQI
12th Sep 20263810 AMAQI
12th Sep 20263811 AMAQI
12th Sep 20264212 PMAQI
12th Sep 2026421 PMAQI
12th Sep 2026402 PMAQI
12th Sep 2026423 PMAQI
12th Sep 2026424 PMAQI
12th Sep 2026405 PMAQI
12th Sep 2026426 PMAQI
12th Sep 2026447 PMAQI
12th Sep 2026468 PMAQI
12th Sep 2026409 PMAQI
12th Sep 20264010 PMAQI
12th Sep 20264211 PMAQI
13th Sep 20264212 AMAQI
13th Sep 2026481 AMAQI
13th Sep 2026442 AMAQI
13th Sep 2026463 AMAQI
13th Sep 2026424 AMAQI

24°C22/27°C

13th Sep 2026386 AMAQI
13th Sep 2026387 AMAQI
13th Sep 2026408 AMAQI
13th Sep 2026389 AMAQI
13th Sep 20263410 AMAQI
13th Sep 20262711 AMAQI
13th Sep 20263312 PMAQI
13th Sep 2026361 PMAQI
13th Sep 2026292 PMAQI
13th Sep 2026273 PMAQI
13th Sep 2026254 PMAQI
13th Sep 2026255 PMAQI
13th Sep 2026216 PMAQI
13th Sep 2026217 PMAQI
13th Sep 2026258 PMAQI
13th Sep 2026389 PMAQI
13th Sep 20263310 PMAQI
13th Sep 20262911 PMAQI
14th Sep 20262712 AMAQI
14th Sep 2026251 AMAQI
14th Sep 2026212 AMAQI
14th Sep 2026233 AMAQI
14th Sep 2026294 AMAQI

25°C23/26°C

14th Sep 2026295 AMAQI
14th Sep 2026296 AMAQI
14th Sep 2026297 AMAQI
14th Sep 2026218 AMAQI
14th Sep 2026259 AMAQI
14th Sep 20262510 AMAQI
14th Sep 20263311 AMAQI
14th Sep 20262912 PMAQI
14th Sep 2026251 PMAQI
14th Sep 2026252 PMAQI
14th Sep 2026383 PMAQI
14th Sep 2026334 PMAQI
14th Sep 2026255 PMAQI
14th Sep 2026296 PMAQI
14th Sep 2026257 PMAQI
14th Sep 2026258 PMAQI
14th Sep 2026259 PMAQI
14th Sep 20262510 PMAQI
14th Sep 20262511 PMAQI
15th Sep 20262512 AMAQI
15th Sep 2026211 AMAQI
15th Sep 2026252 AMAQI
15th Sep 2026253 AMAQI
15th Sep 2026254 AMAQI

24°C22/27°C

15th Sep 2026255 AMAQI
15th Sep 2026216 AMAQI
15th Sep 2026257 AMAQI
15th Sep 2026258 AMAQI
15th Sep 2026259 AMAQI
15th Sep 20262510 AMAQI
15th Sep 20262511 AMAQI
15th Sep 20262512 PMAQI
15th Sep 2026291 PMAQI
15th Sep 2026252 PMAQI
15th Sep 2026403 PMAQI
15th Sep 2026424 PMAQI
15th Sep 2026425 PMAQI
15th Sep 2026446 PMAQI
15th Sep 2026387 PMAQI
15th Sep 2026388 PMAQI
15th Sep 2026429 PMAQI
15th Sep 20264410 PMAQI
15th Sep 20264211 PMAQI
16th Sep 20264212 AMAQI
16th Sep 2026421 AMAQI
16th Sep 2026442 AMAQI
16th Sep 2026443 AMAQI
16th Sep 2026464 AMAQI

23°C22/25°C

16th Sep 2026425 AMAQI
16th Sep 2026426 AMAQI
16th Sep 2026447 AMAQI
16th Sep 2026408 AMAQI
16th Sep 2026449 AMAQI
16th Sep 20263810 AMAQI
16th Sep 20263611 AMAQI
16th Sep 20263312 PMAQI
16th Sep 2026331 PMAQI
16th Sep 2026332 PMAQI
16th Sep 2026333 PMAQI
16th Sep 2026294 PMAQI
16th Sep 2026255 PMAQI
16th Sep 2026216 PMAQI
16th Sep 2026257 PMAQI
16th Sep 2026258 PMAQI
16th Sep 2026239 PMAQI
16th Sep 20262510 PMAQI
16th Sep 20262511 PMAQI
17th Sep 20262512 AMAQI
17th Sep 2026251 AMAQI
17th Sep 2026252 AMAQI
17th Sep 2026253 AMAQI
17th Sep 2026254 AMAQI

22°C21/23°C

17th Sep 2026255 AMAQI
17th Sep 2026256 AMAQI
17th Sep 2026257 AMAQI
17th Sep 2026258 AMAQI
17th Sep 2026259 AMAQI
17th Sep 20262110 AMAQI
17th Sep 20262511 AMAQI
17th Sep 20263312 PMAQI
17th Sep 2026381 PMAQI
17th Sep 2026422 PMAQI
17th Sep 2026293 PMAQI
17th Sep 2026424 PMAQI
17th Sep 2026335 PMAQI
17th Sep 2026336 PMAQI
17th Sep 2026337 PMAQI
17th Sep 2026298 PMAQI
17th Sep 2026259 PMAQI
17th Sep 20262510 PMAQI
17th Sep 20262911 PMAQI
18th Sep 20262912 AMAQI
18th Sep 2026251 AMAQI
18th Sep 2026292 AMAQI
18th Sep 2026253 AMAQI
18th Sep 2026254 AMAQI

23°C21/26°C

18th Sep 2026255 AMAQI
18th Sep 2026296 AMAQI
18th Sep 2026257 AMAQI
18th Sep 2026258 AMAQI
18th Sep 2026259 AMAQI
18th Sep 20262510 AMAQI
18th Sep 20262911 AMAQI
18th Sep 20262912 PMAQI
18th Sep 2026291 PMAQI
18th Sep 2026332 PMAQI
18th Sep 2026383 PMAQI
18th Sep 2026294 PMAQI
18th Sep 2026335 PMAQI
18th Sep 2026296 PMAQI
18th Sep 2026257 PMAQI
18th Sep 2026238 PMAQI
18th Sep 2026219 PMAQI
18th Sep 20262510 PMAQI
18th Sep 20262911 PMAQI
19th Sep 20262912 AMAQI
19th Sep 2026271 AMAQI
19th Sep 2026252 AMAQI
19th Sep 2026253 AMAQI
19th Sep 2026294 AMAQI

22°C21/25°C

19th Sep 2026255 AMAQI
19th Sep 2026256 AMAQI
19th Sep 2026217 AMAQI
19th Sep 2026258 AMAQI
19th Sep 2026259 AMAQI
19th Sep 20262510 AMAQI
19th Sep 20262511 AMAQI
19th Sep 20262512 PMAQI
19th Sep 2026331 PMAQI
19th Sep 2026382 PMAQI
19th Sep 2026423 PMAQI
19th Sep 2026254 PMAQI
19th Sep 2026255 PMAQI
19th Sep 2026336 PMAQI
19th Sep 2026337 PMAQI
19th Sep 2026338 PMAQI
19th Sep 2026389 PMAQI
19th Sep 20262910 PMAQI
19th Sep 20262911 PMAQI
20th Sep 20262912 AMAQI
20th Sep 2026291 AMAQI
20th Sep 2026292 AMAQI
20th Sep 2026233 AMAQI
20th Sep 2026214 AMAQI

23°C22/25°C

20th Sep 2026215 AMAQI
20th Sep 2026296 AMAQI
20th Sep 2026217 AMAQI
20th Sep 2026218 AMAQI
20th Sep 2026219 AMAQI
20th Sep 20262510 AMAQI
20th Sep 20262511 AMAQI
20th Sep 20262912 PMAQI
20th Sep 2026291 PMAQI
20th Sep 2026252 PMAQI
20th Sep 2026233 PMAQI
20th Sep 2026234 PMAQI
20th Sep 2026255 PMAQI
20th Sep 2026216 PMAQI
20th Sep 2026257 PMAQI
20th Sep 2026298 PMAQI
20th Sep 2026219 PMAQI
20th Sep 20262110 PMAQI
20th Sep 20262511 PMAQI
21st Sep 20262512 AMAQI
21st Sep 2026251 AMAQI
21st Sep 2026252 AMAQI
21st Sep 2026253 AMAQI
21st Sep 2026254 AMAQI

24°C21/27°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 2026251 PMAQI
21st Sep 2026252 PMAQI
21st Sep 2026253 PMAQI
21st Sep 2026214 PMAQI
21st Sep 2026215 PMAQI
21st Sep 2026256 PMAQI
21st Sep 2026217 PMAQI
21st Sep 2026258 PMAQI
21st Sep 2026299 PMAQI
21st Sep 20262910 PMAQI
21st Sep 20262911 PMAQI
22nd Sep 20262912 AMAQI
22nd Sep 2026291 AMAQI
22nd Sep 2026422 AMAQI
22nd Sep 2026513 AMAQI
22nd Sep 2026494 AMAQI

22°C20/24°C

22nd Sep 2026505 AMAQI
22nd Sep 2026326 AMAQI
22nd Sep 2026257 AMAQI
22nd Sep 2026298 AMAQI
22nd Sep 2026259 AMAQI
22nd Sep 20262510 AMAQI
22nd Sep 20262911 AMAQI
22nd Sep 20262912 PMAQI
22nd Sep 2026251 PMAQI
22nd Sep 2026382 PMAQI
22nd Sep 2026383 PMAQI
22nd Sep 2026334 PMAQI
22nd Sep 2026215 PMAQI
22nd Sep 2026236 PMAQI
22nd Sep 2026367 PMAQI
22nd Sep 2026258 PMAQI
22nd Sep 2026299 PMAQI
22nd Sep 20262310 PMAQI
22nd Sep 20262911 PMAQI
23rd Sep 20263312 AMAQI
23rd Sep 2026311 AMAQI
23rd Sep 2026272 AMAQI
23rd Sep 2026293 AMAQI
23rd Sep 2026254 AMAQI

22°C17/26°C

23rd Sep 2026275 AMAQI
23rd Sep 2026296 AMAQI
23rd Sep 2026217 AMAQI
23rd Sep 2026298 AMAQI
23rd Sep 2026299 AMAQI
23rd Sep 20263310 AMAQI
23rd Sep 20262911 AMAQI
23rd Sep 20262512 PMAQI
23rd Sep 2026331 PMAQI
23rd Sep 2026272 PMAQI
23rd Sep 2026253 PMAQI
23rd Sep 2026384 PMAQI
23rd Sep 2026295 PMAQI
23rd Sep 2026256 PMAQI
23rd Sep 2026337 PMAQI
23rd Sep 2026448 PMAQI
23rd Sep 2026279 PMAQI
23rd Sep 20263610 PMAQI
23rd Sep 20264411 PMAQI
24th Sep 20263112 AMAQI
24th Sep 2026331 AMAQI
24th Sep 2026382 AMAQI
24th Sep 2026333 AMAQI
24th Sep 2026334 AMAQI

22°C19/25°C

24th Sep 2026315 AMAQI
24th Sep 2026296 AMAQI
24th Sep 2026337 AMAQI
24th Sep 2026388 AMAQI
24th Sep 2026389 AMAQI
24th Sep 20262710 AMAQI
24th Sep 20263311 AMAQI
24th Sep 20263612 PMAQI
24th Sep 2026501 PMAQI
24th Sep 2026502 PMAQI
24th Sep 2026463 PMAQI
24th Sep 2026574 PMAQI
24th Sep 2026535 PMAQI
24th Sep 2026486 PMAQI
24th Sep 2026427 PMAQI
24th Sep 2026448 PMAQI
24th Sep 2026429 PMAQI
24th Sep 20265610 PMAQI
24th Sep 20265311 PMAQI
25th Sep 20265512 AMAQI
25th Sep 2026551 AMAQI
25th Sep 2026442 AMAQI
25th Sep 2026363 AMAQI
25th Sep 2026404 AMAQI

22°C20/25°C

25th Sep 2026495 AMAQI
25th Sep 2026526 AMAQI
25th Sep 2026467 AMAQI
25th Sep 2026448 AMAQI
25th Sep 2026389 AMAQI
25th Sep 20264010 AMAQI
25th Sep 20265211 AMAQI
25th Sep 20266212 PMAQI
25th Sep 2026641 PMAQI
25th Sep 2026562 PMAQI
25th Sep 2026603 PMAQI
25th Sep 2026584 PMAQI
25th Sep 2026605 PMAQI
25th Sep 2026446 PMAQI
25th Sep 2026567 PMAQI
25th Sep 2026668 PMAQI
25th Sep 2026539 PMAQI
25th Sep 20265810 PMAQI
25th Sep 20265311 PMAQI
26th Sep 20265612 AMAQI
26th Sep 2026531 AMAQI
26th Sep 2026532 AMAQI
26th Sep 2026293 AMAQI
26th Sep 2026464 AMAQI

22°C19/26°C

26th Sep 2026535 AMAQI
26th Sep 2026566 AMAQI
26th Sep 2026567 AMAQI
26th Sep 2026518 AMAQI
26th Sep 2026559 AMAQI
26th Sep 20266010 AMAQI
26th Sep 20266011 AMAQI
26th Sep 20266212 PMAQI
26th Sep 2026731 PMAQI
26th Sep 2026652 PMAQI
26th Sep 2026733 PMAQI
26th Sep 2026684 PMAQI
26th Sep 2026605 PMAQI
26th Sep 2026556 PMAQI
26th Sep 2026567 PMAQI
26th Sep 2026488 PMAQI
26th Sep 2026369 PMAQI
26th Sep 20262510 PMAQI
26th Sep 20262111 PMAQI
27th Sep 20262112 AMAQI
27th Sep 2026211 AMAQI
27th Sep 2026232 AMAQI
27th Sep 2026273 AMAQI
27th Sep 2026254 AMAQI

21°C20/25°C

27th Sep 2026255 AMAQI
27th Sep 2026296 AMAQI
27th Sep 2026297 AMAQI
27th Sep 2026258 AMAQI
27th Sep 2026259 AMAQI
27th Sep 20262510 AMAQI
27th Sep 20262111 AMAQI
27th Sep 20262512 PMAQI
27th Sep 2026291 PMAQI
27th Sep 2026312 PMAQI
27th Sep 2026233 PMAQI
27th Sep 2026234 PMAQI
27th Sep 2026275 PMAQI
27th Sep 2026276 PMAQI
27th Sep 2026257 PMAQI
27th Sep 2026258 PMAQI
27th Sep 2026259 PMAQI
27th Sep 20262510 PMAQI
27th Sep 20262511 PMAQI
28th Sep 20262512 AMAQI
28th Sep 2026251 AMAQI
28th Sep 2026252 AMAQI
28th Sep 2026213 AMAQI
28th Sep 2026254 AMAQI

20°C19/21°C

28th Sep 2026255 AMAQI
28th Sep 2026256 AMAQI
28th Sep 2026257 AMAQI
28th Sep 2026298 AMAQI
28th Sep 2026279 AMAQI
28th Sep 20262510 AMAQI
28th Sep 20262511 AMAQI
28th Sep 20262512 PMAQI
28th Sep 2026291 PMAQI
28th Sep 2026292 PMAQI
28th Sep 2026253 PMAQI
28th Sep 2026214 PMAQI
28th Sep 2026235 PMAQI
28th Sep 2026276 PMAQI
28th Sep 2026277 PMAQI
28th Sep 2026298 PMAQI
28th Sep 2026279 PMAQI
28th Sep 20262710 PMAQI
28th Sep 20263311 PMAQI
29th Sep 20263112 AMAQI
29th Sep 2026271 AMAQI
29th Sep 2026252 AMAQI
29th Sep 2026253 AMAQI
29th Sep 2026254 AMAQI

22°C19/24°C

29th Sep 2026255 AMAQI
29th Sep 2026256 AMAQI
29th Sep 2026257 AMAQI
29th Sep 2026258 AMAQI
29th Sep 2026259 AMAQI
29th Sep 20262510 AMAQI
29th Sep 20262111 AMAQI
29th Sep 20262512 PMAQI
29th Sep 2026251 PMAQI
29th Sep 2026252 PMAQI
29th Sep 2026253 PMAQI
29th Sep 2026254 PMAQI
29th Sep 2026255 PMAQI
29th Sep 2026276 PMAQI
29th Sep 2026277 PMAQI
29th Sep 2026218 PMAQI
29th Sep 2026219 PMAQI
29th Sep 20262310 PMAQI
29th Sep 20262511 PMAQI
30th Sep 20262512 AMAQI
30th Sep 2026251 AMAQI
30th Sep 2026252 AMAQI
30th Sep 2026253 AMAQI
30th Sep 2026294 AMAQI

19°C19/20°C

30th Sep 2026365 AMAQI
5 AM
30th Sep 2026386 AMAQI
30th Sep 2026367 AMAQI
30th Sep 2026298 AMAQI
30th Sep 2026259 AMAQI
30th Sep 20262510 AMAQI
30th Sep 20262711 AMAQI
11 AM
30th Sep 20262912 PMAQI
30th Sep 2026311 PMAQI
30th Sep 2026292 PMAQI
30th Sep 2026253 PMAQI
30th Sep 2026254 PMAQI
30th Sep 2026295 PMAQI
30th Sep 2026296 PMAQI
6 PM
30th Sep 2026257 PMAQI
30th Sep 2026338 PMAQI
30th Sep 2026299 PMAQI
30th Sep 20262510 PMAQI
30th Sep 20262911 PMAQI
11 PM
4 AM

21°C18/25°C

Day time
Avg. Highest Time
1 PM

32AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
7 AM

28AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 1 PM (Avg. 32), while the lowest AQI was between 7 AM to 7 AM (Avg. 28).
Night time
Avg. Highest Time
8 PM

31AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM

28AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 8 PM (Avg. 31), while the lowest AQI was between 3 AM to 3 AM (Avg. 28).

2026 Days Vs Air Quality

Uchiko, Ehime, Japan

2026

85%

233

15%

40

Total number of days with different AQI categories in last 273 days in 2026 (92 days remaining)

Good
233 Days
Moderate
40 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 85%

Health Risk Level:

Low

In 2026, 85% of 273 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

Uchiko, 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
23AQI (US)
2nd January 2026
18AQI (US)
3rd January 2026
23AQI (US)
4th January 2026
34AQI (US)
5th January 2026
42AQI (US)
6th January 2026
27AQI (US)
7th January 2026
23AQI (US)
8th January 2026
41AQI (US)
9th January 2026
19AQI (US)
10th January 2026
26AQI (US)
11th January 2026
36AQI (US)
12th January 2026
23AQI (US)
13th January 2026
34AQI (US)
14th January 2026
27AQI (US)
15th January 2026
40AQI (US)
16th January 2026
52AQI (US)
17th January 2026
48AQI (US)
18th January 2026
45AQI (US)
19th January 2026
56AQI (US)
20th January 2026
38AQI (US)
21st January 2026
14AQI (US)
22nd January 2026
27AQI (US)
23rd January 2026
49AQI (US)
24th January 2026
48AQI (US)
25th January 2026
40AQI (US)
26th January 2026
26AQI (US)
27th January 2026
50AQI (US)
28th January 2026
30AQI (US)
29th January 2026
34AQI (US)
30th January 2026
25AQI (US)
31st January 2026
17AQI (US)
1st February 2026
39AQI (US)
2nd February 2026
49AQI (US)
3rd February 2026
33AQI (US)
4th February 2026
46AQI (US)
5th February 2026
45AQI (US)
6th February 2026
40AQI (US)
7th February 2026
26AQI (US)
8th February 2026
21AQI (US)
9th February 2026
40AQI (US)
10th February 2026
47AQI (US)
11th February 2026
38AQI (US)
12th February 2026
37AQI (US)
13th February 2026
29AQI (US)
14th February 2026
52AQI (US)
15th February 2026
46AQI (US)
16th February 2026
54AQI (US)
17th February 2026
21AQI (US)
18th February 2026
22AQI (US)
19th February 2026
46AQI (US)
20th February 2026
34AQI (US)
21st February 2026
65AQI (US)
22nd February 2026
34AQI (US)
23rd February 2026
56AQI (US)
24th February 2026
37AQI (US)
25th February 2026
13AQI (US)
26th February 2026
15AQI (US)
27th February 2026
48AQI (US)
28th February 2026
47AQI (US)
1st March 2026
50AQI (US)
2nd March 2026
78AQI (US)
3rd March 2026
50AQI (US)
4th March 2026
34AQI (US)
5th March 2026
55AQI (US)
6th March 2026
52AQI (US)
7th March 2026
55AQI (US)
8th March 2026
27AQI (US)
9th March 2026
38AQI (US)
10th March 2026
37AQI (US)
11th March 2026
49AQI (US)
12th March 2026
63AQI (US)
13th March 2026
46AQI (US)
14th March 2026
46AQI (US)
15th March 2026
63AQI (US)
16th March 2026
65AQI (US)
17th March 2026
53AQI (US)
18th March 2026
62AQI (US)
19th March 2026
34AQI (US)
20th March 2026
51AQI (US)
21st March 2026
39AQI (US)
22nd March 2026
46AQI (US)
23rd March 2026
28AQI (US)
24th March 2026
47AQI (US)
25th March 2026
41AQI (US)
26th March 2026
17AQI (US)
27th March 2026
33AQI (US)
28th March 2026
71AQI (US)
29th March 2026
74AQI (US)
30th March 2026
61AQI (US)
31st March 2026
17AQI (US)
1st April 2026
15AQI (US)
2nd April 2026
52AQI (US)
3rd April 2026
48AQI (US)
4th April 2026
43AQI (US)
5th April 2026
39AQI (US)
6th April 2026
45AQI (US)
7th April 2026
30AQI (US)
8th April 2026
23AQI (US)
9th April 2026
39AQI (US)
10th April 2026
44AQI (US)
11th April 2026
35AQI (US)
12th April 2026
39AQI (US)
13th April 2026
36AQI (US)
14th April 2026
49AQI (US)
15th April 2026
51AQI (US)
16th April 2026
18AQI (US)
17th April 2026
31AQI (US)
18th April 2026
32AQI (US)
19th April 2026
38AQI (US)
20th April 2026
38AQI (US)
21st April 2026
41AQI (US)
22nd April 2026
43AQI (US)
23rd April 2026
27AQI (US)
24th April 2026
18AQI (US)
25th April 2026
44AQI (US)
26th April 2026
47AQI (US)
27th April 2026
53AQI (US)
28th April 2026
50AQI (US)
29th April 2026
41AQI (US)
30th April 2026
27AQI (US)
1st May 2026
42AQI (US)
2nd May 2026
54AQI (US)
3rd May 2026
41AQI (US)
4th May 2026
30AQI (US)
5th May 2026
26AQI (US)
6th May 2026
33AQI (US)
7th May 2026
35AQI (US)
8th May 2026
30AQI (US)
9th May 2026
30AQI (US)
10th May 2026
36AQI (US)
11th May 2026
38AQI (US)
12th May 2026
38AQI (US)
13th May 2026
44AQI (US)
14th May 2026
38AQI (US)
15th May 2026
40AQI (US)
16th May 2026
79AQI (US)
17th May 2026
65AQI (US)
18th May 2026
53AQI (US)
19th May 2026
46AQI (US)
20th May 2026
62AQI (US)
21st May 2026
65AQI (US)
22nd May 2026
69AQI (US)
23rd May 2026
61AQI (US)
24th May 2026
63AQI (US)
25th May 2026
54AQI (US)
26th May 2026
41AQI (US)
27th May 2026
25AQI (US)
28th May 2026
26AQI (US)
29th May 2026
26AQI (US)
30th May 2026
25AQI (US)
31st May 2026
28AQI (US)
1st June 2026
28AQI (US)
2nd June 2026
30AQI (US)
3rd June 2026
28AQI (US)
4th June 2026
24AQI (US)
5th June 2026
22AQI (US)
6th June 2026
24AQI (US)
7th June 2026
21AQI (US)
8th June 2026
21AQI (US)
9th June 2026
23AQI (US)
10th June 2026
23AQI (US)
11th June 2026
25AQI (US)
12th June 2026
25AQI (US)
13th June 2026
27AQI (US)
14th June 2026
23AQI (US)
15th June 2026
23AQI (US)
16th June 2026
27AQI (US)
17th June 2026
24AQI (US)
18th June 2026
26AQI (US)
19th June 2026
34AQI (US)
20th June 2026
22AQI (US)
21st June 2026
18AQI (US)
22nd June 2026
17AQI (US)
23rd June 2026
20AQI (US)
24th June 2026
19AQI (US)
25th June 2026
26AQI (US)
26th June 2026
26AQI (US)
27th June 2026
27AQI (US)
28th June 2026
31AQI (US)
29th June 2026
33AQI (US)
30th June 2026
52AQI (US)
1st July 2026
36AQI (US)
2nd July 2026
15AQI (US)
3rd July 2026
24AQI (US)
4th July 2026
24AQI (US)
5th July 2026
22AQI (US)
6th July 2026
21AQI (US)
7th July 2026
20AQI (US)
8th July 2026
14AQI (US)
9th July 2026
20AQI (US)
10th July 2026
26AQI (US)
11th July 2026
24AQI (US)
12th July 2026
26AQI (US)
13th July 2026
26AQI (US)
14th July 2026
30AQI (US)
15th July 2026
31AQI (US)
16th July 2026
33AQI (US)
17th July 2026
33AQI (US)
18th July 2026
49AQI (US)
19th July 2026
47AQI (US)
20th July 2026
45AQI (US)
21st July 2026
34AQI (US)
22nd July 2026
56AQI (US)
23rd July 2026
60AQI (US)
24th July 2026
51AQI (US)
25th July 2026
53AQI (US)
26th July 2026
46AQI (US)
27th July 2026
46AQI (US)
28th July 2026
41AQI (US)
29th July 2026
29AQI (US)
30th July 2026
28AQI (US)
31st July 2026
39AQI (US)
1st August 2026
33AQI (US)
2nd August 2026
37AQI (US)
3rd August 2026
47AQI (US)
4th August 2026
32AQI (US)
5th August 2026
30AQI (US)
6th August 2026
28AQI (US)
7th August 2026
28AQI (US)
8th August 2026
25AQI (US)
9th August 2026
26AQI (US)
10th August 2026
28AQI (US)
11th August 2026
26AQI (US)
12th August 2026
23AQI (US)
13th August 2026
27AQI (US)
14th August 2026
43AQI (US)
15th August 2026
26AQI (US)
16th August 2026
27AQI (US)
17th August 2026
25AQI (US)
18th August 2026
26AQI (US)
19th August 2026
26AQI (US)
20th August 2026
27AQI (US)
21st August 2026
26AQI (US)
22nd August 2026
25AQI (US)
23rd August 2026
28AQI (US)
24th August 2026
25AQI (US)
25th August 2026
25AQI (US)
26th August 2026
26AQI (US)
27th August 2026
25AQI (US)
28th August 2026
24AQI (US)
29th August 2026
25AQI (US)
30th August 2026
36AQI (US)
31st August 2026
51AQI (US)
1st September 2026
27AQI (US)
2nd September 2026
26AQI (US)
3rd September 2026
26AQI (US)
4th September 2026
25AQI (US)
5th September 2026
26AQI (US)
6th September 2026
25AQI (US)
7th September 2026
24AQI (US)
8th September 2026
25AQI (US)
9th September 2026
24AQI (US)
10th September 2026
25AQI (US)
11th September 2026
26AQI (US)
12th September 2026
38AQI (US)
13th September 2026
34AQI (US)
14th September 2026
27AQI (US)
15th September 2026
31AQI (US)
16th September 2026
35AQI (US)
17th September 2026
29AQI (US)
18th September 2026
27AQI (US)
19th September 2026
29AQI (US)
20th September 2026
25AQI (US)
21st September 2026
25AQI (US)
22nd September 2026
32AQI (US)
23rd September 2026
30AQI (US)
24th September 2026
41AQI (US)
25th September 2026
52AQI (US)
26th September 2026
53AQI (US)
27th September 2026
25AQI (US)
28th September 2026
26AQI (US)
29th September 2026
25AQI (US)
30th September 2026
28AQI (US)
1st October 2026
2nd October 2026
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

33AQI (US)

39AQI (US)

48AQI (US)

38AQI (US)

43AQI (US)

26AQI (US)

34AQI (US)

29AQI (US)

30AQI (US)

No. of days

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

202635AQI (US)

29
2
24
4
18
13
27
3
21
10
29
1
27
4
30
1
28
2
233
40

Highest AQI (US) recorded in

March

48AQI (US)

Lowest AQI (US) recorded in

June

26AQI (US)

202543AQI (US)

27
4
27
1
20
11
27
3
25
6
19
11
17
14
28
3
30
12
19
19
11
28
3
279
86

Highest AQI (US) recorded in

October

51AQI (US)

Lowest AQI (US) recorded in

September

32AQI (US)

202429AQI (US)

31
24
3
26
5
28
2
28
3
27
3
31
19
12
28
31
29
1
31
333
29

Highest AQI (US) recorded in

August

37AQI (US)

Lowest AQI (US) recorded in

October

21AQI (US)

202338AQI (US)

26
5
25
3
20
11
12
18
23
8
22
6
24
7
30
1
28
2
25
6
25
4
29
2
289
73

Highest AQI (US) recorded in

April

54AQI (US)

Lowest AQI (US) recorded in

August

22AQI (US)

202239AQI (US)

26
4
18
3
21
10
6
2
10
9
24
6
21
1
27
1
29
2
27
3
27
237
40

Highest AQI (US) recorded in

May

52AQI (US)

Lowest AQI (US) recorded in

August

10AQI (US)

202137AQI (US)

26
5
21
7
18
11
15
4
21
10
21
9
26
5
25
3
21
7
28
3
20
9
26
5
268
78

Highest AQI (US) recorded in

May

44AQI (US)

Lowest AQI (US) recorded in

August

28AQI (US)

202033AQI (US)

7
6
15
6
14
4
23
7
30
1
20
8
2
19
28
1
28
2
27
4
211
39
2

Highest AQI (US) recorded in

August

44AQI (US)

Lowest AQI (US) recorded in

July

24AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
43AQI (US)
Least Polluted Year Recorded
2024(Avg.)
29AQI (US)

Uchiko's annual 2026 AQI (US) (35) shows an average percentage change of -2.5% (improved AQI (US)) compared to previous years: 2020 (33), 2021 (37), 2022 (39), 2023 (38), 2024 (29), 2025 (43).