Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Omachi, 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

Omachi, Saijo, Ehime, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
6th Aug 2024
62AQI
Lowest AQI recorded on
23rd Aug 2023
10AQI

Same Day Analysis (2nd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 42 of Good air quality, showing improvement over 2025 and 2023 on the same day.

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

Omachi, Saijo, Ehime, Japan

AQI
Day
Night
.

5 AM1st Aug 2026

7 PM

4 AM2nd Aug 2026

Day time
Avg. Highest Time
2PM1st Aug

50AQI

Avg. Lowest Time
7PM1st Aug

38AQI

Night time
Avg. Highest Time
1AM2nd Aug

50AQI

Avg. Lowest Time
2AM2nd Aug

44AQI

In the last 24 hours,

Omachi's AQI reached its highest point of 50 at 2 PM during the Day, while the lowest point, 38, was recorded at 7 PM during the Day between 1st Aug and 2nd Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Omachi, Saijo, Ehime, Japan

JulAug
04th - 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 - 31st31st - 01st01st - 02nd02nd
Day
Night
4th Jul 2026255 AMAQI
4th Jul 2026286 AMAQI
4th Jul 2026267 AMAQI
4th Jul 2026278 AMAQI
4th Jul 2026259 AMAQI
4th Jul 20262410 AMAQI
4th Jul 20262611 AMAQI
4th Jul 20262412 PMAQI
4th Jul 2026241 PMAQI
4th Jul 2026232 PMAQI
4th Jul 2026263 PMAQI
4th Jul 2026264 PMAQI
4th Jul 2026245 PMAQI
4th Jul 2026246 PMAQI
4th Jul 2026267 PMAQI
4th Jul 2026228 PMAQI
4th Jul 2026269 PMAQI
4th Jul 20262410 PMAQI
4th Jul 20262411 PMAQI
5th Jul 20262412 AMAQI
5th Jul 2026251 AMAQI
5th Jul 2026242 AMAQI
5th Jul 2026243 AMAQI
5th Jul 2026244 AMAQI

21°C19/22°C

5th Jul 2026265 AMAQI
5th Jul 2026246 AMAQI
5th Jul 2026237 AMAQI
5th Jul 2026258 AMAQI
5th Jul 2026209 AMAQI
5th Jul 20262210 AMAQI
5th Jul 20262211 AMAQI
5th Jul 20262012 PMAQI
5th Jul 2026201 PMAQI
5th Jul 2026222 PMAQI
5th Jul 2026233 PMAQI
5th Jul 2026254 PMAQI
5th Jul 2026225 PMAQI
5th Jul 2026196 PMAQI
5th Jul 202687 PMAQI
5th Jul 2026208 PMAQI
5th Jul 2026249 PMAQI
5th Jul 20262210 PMAQI
5th Jul 20262011 PMAQI
6th Jul 20261812 AMAQI
6th Jul 2026251 AMAQI
6th Jul 2026242 AMAQI
6th Jul 2026183 AMAQI
6th Jul 2026204 AMAQI

21°C20/25°C

6th Jul 2026125 AMAQI
6th Jul 2026226 AMAQI
6th Jul 2026207 AMAQI
6th Jul 2026248 AMAQI
6th Jul 2026199 AMAQI
6th Jul 20262410 AMAQI
6th Jul 20263311 AMAQI
6th Jul 20261912 PMAQI
6th Jul 2026191 PMAQI
6th Jul 2026222 PMAQI
6th Jul 2026233 PMAQI
6th Jul 2026234 PMAQI
6th Jul 2026205 PMAQI
6th Jul 2026226 PMAQI
6th Jul 2026247 PMAQI
6th Jul 2026288 PMAQI
6th Jul 2026269 PMAQI
6th Jul 20262410 PMAQI
6th Jul 20262711 PMAQI
7th Jul 20262812 AMAQI
7th Jul 2026261 AMAQI
7th Jul 2026292 AMAQI
7th Jul 2026283 AMAQI
7th Jul 2026284 AMAQI

21°C19/25°C

7th Jul 2026285 AMAQI
7th Jul 2026306 AMAQI
7th Jul 2026257 AMAQI
7th Jul 2026288 AMAQI
7th Jul 2026139 AMAQI
7th Jul 20262410 AMAQI
7th Jul 20262711 AMAQI
7th Jul 20262412 PMAQI
7th Jul 2026241 PMAQI
7th Jul 2026242 PMAQI
7th Jul 2026283 PMAQI
7th Jul 2026264 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026306 PMAQI
7th Jul 2026307 PMAQI
7th Jul 2026308 PMAQI
7th Jul 2026289 PMAQI
7th Jul 20266410 PMAQI
7th Jul 20266911 PMAQI
8th Jul 20266412 AMAQI
8th Jul 2026661 AMAQI
8th Jul 2026652 AMAQI
8th Jul 2026583 AMAQI
8th Jul 2026584 AMAQI

23°C19/26°C

8th Jul 2026555 AMAQI
8th Jul 2026536 AMAQI
8th Jul 2026527 AMAQI
8th Jul 2026528 AMAQI
8th Jul 2026509 AMAQI
8th Jul 20264610 AMAQI
8th Jul 20263611 AMAQI
8th Jul 20264412 PMAQI
8th Jul 2026441 PMAQI
8th Jul 2026482 PMAQI
8th Jul 2026523 PMAQI
8th Jul 2026544 PMAQI
8th Jul 2026575 PMAQI
8th Jul 2026576 PMAQI
8th Jul 2026587 PMAQI
8th Jul 2026538 PMAQI
8th Jul 2026559 PMAQI
8th Jul 20265710 PMAQI
8th Jul 20265911 PMAQI
9th Jul 20265812 AMAQI
9th Jul 2026581 AMAQI
9th Jul 2026552 AMAQI
9th Jul 2026483 AMAQI
9th Jul 2026404 AMAQI

23°C21/25°C

9th Jul 2026315 AMAQI
9th Jul 2026236 AMAQI
9th Jul 2026237 AMAQI
9th Jul 2026178 AMAQI
9th Jul 2026179 AMAQI
9th Jul 20262510 AMAQI
9th Jul 20262111 AMAQI
9th Jul 20261712 PMAQI
9th Jul 2026231 PMAQI
9th Jul 2026272 PMAQI
9th Jul 2026293 PMAQI
9th Jul 2026334 PMAQI
9th Jul 2026385 PMAQI
9th Jul 2026406 PMAQI
9th Jul 2026337 PMAQI
9th Jul 2026388 PMAQI
9th Jul 2026469 PMAQI
9th Jul 20264010 PMAQI
9th Jul 20263111 PMAQI
10th Jul 20263112 AMAQI
10th Jul 2026381 AMAQI
10th Jul 2026312 AMAQI
10th Jul 2026293 AMAQI
10th Jul 2026314 AMAQI

23°C19/27°C

10th Jul 2026295 AMAQI
10th Jul 2026256 AMAQI
10th Jul 2026277 AMAQI
10th Jul 2026298 AMAQI
10th Jul 2026279 AMAQI
10th Jul 20262910 AMAQI
10th Jul 20263311 AMAQI
10th Jul 20264412 PMAQI
10th Jul 2026311 PMAQI
10th Jul 2026292 PMAQI
10th Jul 2026333 PMAQI
10th Jul 2026404 PMAQI
10th Jul 2026305 PMAQI
10th Jul 2026286 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026278 PMAQI
10th Jul 2026309 PMAQI
10th Jul 20263110 PMAQI
10th Jul 20263211 PMAQI
11th Jul 20263512 AMAQI
11th Jul 2026331 AMAQI
11th Jul 2026302 AMAQI
11th Jul 2026323 AMAQI
11th Jul 2026284 AMAQI

23°C18/28°C

11th Jul 2026325 AMAQI
11th Jul 2026316 AMAQI
11th Jul 2026337 AMAQI
11th Jul 2026348 AMAQI
11th Jul 2026319 AMAQI
11th Jul 20263610 AMAQI
11th Jul 20262911 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026261 PMAQI
11th Jul 2026262 PMAQI
11th Jul 2026253 PMAQI
11th Jul 2026274 PMAQI
11th Jul 2026285 PMAQI
11th Jul 2026306 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026248 PMAQI
11th Jul 2026289 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20263111 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026311 AMAQI
12th Jul 2026312 AMAQI
12th Jul 2026323 AMAQI
12th Jul 2026294 AMAQI

24°C20/29°C

12th Jul 2026285 AMAQI
12th Jul 2026296 AMAQI
12th Jul 2026317 AMAQI
12th Jul 2026288 AMAQI
12th Jul 2026309 AMAQI
12th Jul 20263010 AMAQI
12th Jul 20262711 AMAQI
12th Jul 20262612 PMAQI
12th Jul 2026241 PMAQI
12th Jul 2026232 PMAQI
12th Jul 2026213 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026298 PMAQI
12th Jul 2026289 PMAQI
12th Jul 20262910 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20263012 AMAQI
13th Jul 2026341 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026303 AMAQI
13th Jul 2026264 AMAQI

25°C20/30°C

13th Jul 2026305 AMAQI
13th Jul 2026276 AMAQI
13th Jul 2026267 AMAQI
13th Jul 2026288 AMAQI
13th Jul 2026289 AMAQI
13th Jul 20263110 AMAQI
13th Jul 20262911 AMAQI
13th Jul 20263012 PMAQI
13th Jul 2026281 PMAQI
13th Jul 2026282 PMAQI
13th Jul 2026263 PMAQI
13th Jul 2026264 PMAQI
13th Jul 2026315 PMAQI
13th Jul 2026326 PMAQI
13th Jul 2026307 PMAQI
13th Jul 2026328 PMAQI
13th Jul 2026329 PMAQI
13th Jul 20263310 PMAQI
13th Jul 20263011 PMAQI
14th Jul 20263012 AMAQI
14th Jul 2026321 AMAQI
14th Jul 2026302 AMAQI
14th Jul 2026303 AMAQI
14th Jul 2026264 AMAQI

25°C21/31°C

14th Jul 2026315 AMAQI
14th Jul 2026306 AMAQI
14th Jul 2026327 AMAQI
14th Jul 2026278 AMAQI
14th Jul 2026329 AMAQI
14th Jul 20263310 AMAQI
14th Jul 20262911 AMAQI
14th Jul 20262812 PMAQI
14th Jul 2026221 PMAQI
14th Jul 2026222 PMAQI
14th Jul 2026213 PMAQI
14th Jul 2026244 PMAQI
14th Jul 2026315 PMAQI
14th Jul 2026316 PMAQI
14th Jul 2026317 PMAQI
14th Jul 2026268 PMAQI
14th Jul 2026299 PMAQI
14th Jul 20263210 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263212 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026302 AMAQI
15th Jul 2026303 AMAQI
15th Jul 2026264 AMAQI

26°C22/31°C

15th Jul 2026285 AMAQI
15th Jul 2026226 AMAQI
15th Jul 2026307 AMAQI
15th Jul 2026288 AMAQI
15th Jul 2026299 AMAQI
15th Jul 20262910 AMAQI
15th Jul 20262411 AMAQI
15th Jul 20262212 PMAQI
15th Jul 2026191 PMAQI
15th Jul 2026192 PMAQI
15th Jul 2026243 PMAQI
15th Jul 2026314 PMAQI
15th Jul 2026255 PMAQI
15th Jul 2026226 PMAQI
15th Jul 2026237 PMAQI
15th Jul 2026278 PMAQI
15th Jul 2026279 PMAQI
15th Jul 20262910 PMAQI
15th Jul 20262211 PMAQI
16th Jul 20262912 AMAQI
16th Jul 2026201 AMAQI
16th Jul 2026382 AMAQI
16th Jul 2026263 AMAQI
16th Jul 2026314 AMAQI

26°C21/31°C

16th Jul 2026295 AMAQI
16th Jul 2026276 AMAQI
16th Jul 2026247 AMAQI
16th Jul 2026268 AMAQI
16th Jul 2026269 AMAQI
16th Jul 20263310 AMAQI
16th Jul 20263111 AMAQI
16th Jul 20263812 PMAQI
16th Jul 2026441 PMAQI
16th Jul 2026442 PMAQI
16th Jul 2026363 PMAQI
16th Jul 2026254 PMAQI
16th Jul 2026205 PMAQI
16th Jul 2026216 PMAQI
16th Jul 2026257 PMAQI
16th Jul 2026388 PMAQI
16th Jul 2026329 PMAQI
16th Jul 20263810 PMAQI
16th Jul 20262911 PMAQI
17th Jul 20263112 AMAQI
17th Jul 2026301 AMAQI
17th Jul 2026302 AMAQI
17th Jul 2026303 AMAQI
17th Jul 2026304 AMAQI

26°C22/30°C

17th Jul 2026285 AMAQI
17th Jul 2026286 AMAQI
17th Jul 2026287 AMAQI
17th Jul 2026238 AMAQI
17th Jul 2026289 AMAQI
17th Jul 20263010 AMAQI
17th Jul 20262811 AMAQI
17th Jul 20263012 PMAQI
17th Jul 2026271 PMAQI
17th Jul 2026262 PMAQI
17th Jul 2026263 PMAQI
17th Jul 2026504 PMAQI
17th Jul 2026485 PMAQI
17th Jul 2026466 PMAQI
17th Jul 2026497 PMAQI
17th Jul 2026518 PMAQI
17th Jul 2026519 PMAQI
17th Jul 20265110 PMAQI
17th Jul 20265411 PMAQI
18th Jul 20265312 AMAQI
18th Jul 2026541 AMAQI
18th Jul 2026532 AMAQI
18th Jul 2026543 AMAQI
18th Jul 2026534 AMAQI

26°C21/31°C

18th Jul 2026545 AMAQI
18th Jul 2026536 AMAQI
18th Jul 2026547 AMAQI
18th Jul 2026538 AMAQI
18th Jul 2026529 AMAQI
18th Jul 20265410 AMAQI
18th Jul 20265711 AMAQI
18th Jul 20265212 PMAQI
18th Jul 2026531 PMAQI
18th Jul 2026552 PMAQI
18th Jul 2026533 PMAQI
18th Jul 2026534 PMAQI
18th Jul 2026555 PMAQI
18th Jul 2026576 PMAQI
18th Jul 2026587 PMAQI
18th Jul 2026578 PMAQI
18th Jul 2026589 PMAQI
18th Jul 20265810 PMAQI
18th Jul 20265611 PMAQI
19th Jul 20265512 AMAQI
19th Jul 2026571 AMAQI
19th Jul 2026562 AMAQI
19th Jul 2026563 AMAQI
19th Jul 2026564 AMAQI

25°C22/29°C

19th Jul 2026565 AMAQI
19th Jul 2026566 AMAQI
19th Jul 2026567 AMAQI
19th Jul 2026558 AMAQI
19th Jul 2026569 AMAQI
19th Jul 20265510 AMAQI
19th Jul 20265411 AMAQI
19th Jul 20265312 PMAQI
19th Jul 2026541 PMAQI
19th Jul 2026562 PMAQI
19th Jul 2026563 PMAQI
19th Jul 2026584 PMAQI
19th Jul 2026585 PMAQI
19th Jul 2026566 PMAQI
19th Jul 2026597 PMAQI
19th Jul 2026608 PMAQI
19th Jul 2026599 PMAQI
19th Jul 20266210 PMAQI
19th Jul 20265911 PMAQI
20th Jul 20265812 AMAQI
20th Jul 2026591 AMAQI
20th Jul 2026572 AMAQI
20th Jul 2026583 AMAQI
20th Jul 2026564 AMAQI

25°C22/30°C

20th Jul 2026575 AMAQI
20th Jul 2026566 AMAQI
20th Jul 2026557 AMAQI
20th Jul 2026558 AMAQI
20th Jul 2026539 AMAQI
20th Jul 20265010 AMAQI
20th Jul 20265311 AMAQI
20th Jul 20265512 PMAQI
20th Jul 2026551 PMAQI
20th Jul 2026552 PMAQI
20th Jul 2026553 PMAQI
20th Jul 2026574 PMAQI
20th Jul 2026575 PMAQI
20th Jul 2026566 PMAQI
20th Jul 2026567 PMAQI
20th Jul 2026608 PMAQI
20th Jul 2026579 PMAQI
20th Jul 20266310 PMAQI
20th Jul 20265911 PMAQI
21st Jul 20265812 AMAQI
21st Jul 2026581 AMAQI
21st Jul 2026602 AMAQI
21st Jul 2026593 AMAQI
21st Jul 2026584 AMAQI

26°C21/30°C

21st Jul 2026585 AMAQI
21st Jul 2026566 AMAQI
21st Jul 2026597 AMAQI
21st Jul 2026588 AMAQI
21st Jul 2026599 AMAQI
21st Jul 20265810 AMAQI
21st Jul 20265811 AMAQI
21st Jul 2026571 PMAQI
21st Jul 2026602 PMAQI
21st Jul 2026653 PMAQI
21st Jul 2026694 PMAQI
21st Jul 2026645 PMAQI
21st Jul 2026646 PMAQI
21st Jul 2026937 PMAQI
21st Jul 2026698 PMAQI
21st Jul 2026629 PMAQI
21st Jul 20266210 PMAQI
21st Jul 20266211 PMAQI
22nd Jul 20266512 AMAQI
22nd Jul 2026681 AMAQI
22nd Jul 2026682 AMAQI
22nd Jul 2026653 AMAQI
22nd Jul 2026654 AMAQI

26°C23/29°C

22nd Jul 2026605 AMAQI
22nd Jul 2026596 AMAQI
22nd Jul 2026587 AMAQI
22nd Jul 2026608 AMAQI
22nd Jul 2026569 AMAQI
22nd Jul 20266210 AMAQI
22nd Jul 20265811 AMAQI
22nd Jul 20265612 PMAQI
22nd Jul 2026641 PMAQI
22nd Jul 2026652 PMAQI
22nd Jul 2026743 PMAQI
22nd Jul 2026744 PMAQI
22nd Jul 2026735 PMAQI
22nd Jul 2026796 PMAQI
22nd Jul 2026767 PMAQI
22nd Jul 2026798 PMAQI
22nd Jul 2026839 PMAQI
22nd Jul 20268110 PMAQI
22nd Jul 20267911 PMAQI
23rd Jul 20267612 AMAQI
23rd Jul 2026621 AMAQI
23rd Jul 2026652 AMAQI
23rd Jul 2026623 AMAQI
23rd Jul 2026604 AMAQI

26°C22/30°C

23rd Jul 2026655 AMAQI
23rd Jul 2026626 AMAQI
23rd Jul 2026597 AMAQI
23rd Jul 2026628 AMAQI
23rd Jul 2026599 AMAQI
23rd Jul 20265710 AMAQI
23rd Jul 20265511 AMAQI
23rd Jul 20265512 PMAQI
23rd Jul 2026551 PMAQI
23rd Jul 2026562 PMAQI
23rd Jul 2026533 PMAQI
23rd Jul 2026514 PMAQI
23rd Jul 2026535 PMAQI
23rd Jul 2026626 PMAQI
23rd Jul 2026627 PMAQI
23rd Jul 2026708 PMAQI
23rd Jul 2026709 PMAQI
23rd Jul 20266810 PMAQI
23rd Jul 20267311 PMAQI
24th Jul 20267112 AMAQI
24th Jul 2026661 AMAQI
24th Jul 2026652 AMAQI
24th Jul 2026653 AMAQI
24th Jul 2026644 AMAQI

26°C22/31°C

24th Jul 2026655 AMAQI
24th Jul 2026636 AMAQI
24th Jul 2026637 AMAQI
24th Jul 2026608 AMAQI
24th Jul 2026629 AMAQI
24th Jul 20265510 AMAQI
24th Jul 20265511 AMAQI
24th Jul 20265312 PMAQI
24th Jul 2026571 PMAQI
24th Jul 2026602 PMAQI
24th Jul 2026573 PMAQI
24th Jul 2026564 PMAQI
24th Jul 2026565 PMAQI
24th Jul 2026576 PMAQI
24th Jul 2026657 PMAQI
24th Jul 2026588 PMAQI
24th Jul 2026559 PMAQI
24th Jul 20265610 PMAQI
24th Jul 20265711 PMAQI
25th Jul 20265412 AMAQI
25th Jul 2026531 AMAQI
25th Jul 2026552 AMAQI
25th Jul 2026553 AMAQI
25th Jul 2026554 AMAQI

26°C22/31°C

25th Jul 2026545 AMAQI
25th Jul 2026536 AMAQI
25th Jul 2026517 AMAQI
25th Jul 2026508 AMAQI
25th Jul 2026509 AMAQI
25th Jul 20265010 AMAQI
25th Jul 20265111 AMAQI
25th Jul 20265112 PMAQI
25th Jul 2026511 PMAQI
25th Jul 2026522 PMAQI
25th Jul 2026533 PMAQI
25th Jul 2026584 PMAQI
25th Jul 2026565 PMAQI
25th Jul 2026536 PMAQI
25th Jul 2026547 PMAQI
25th Jul 2026608 PMAQI
25th Jul 2026629 PMAQI
25th Jul 20266510 PMAQI
25th Jul 20266311 PMAQI
26th Jul 20266012 AMAQI
26th Jul 2026571 AMAQI
26th Jul 2026602 AMAQI
26th Jul 2026573 AMAQI
26th Jul 2026594 AMAQI

26°C22/32°C

26th Jul 2026605 AMAQI
26th Jul 2026586 AMAQI
26th Jul 2026567 AMAQI
26th Jul 2026568 AMAQI
26th Jul 2026539 AMAQI
26th Jul 20265510 AMAQI
26th Jul 20265111 AMAQI
26th Jul 20265012 PMAQI
26th Jul 2026481 PMAQI
26th Jul 2026462 PMAQI
26th Jul 2026483 PMAQI
26th Jul 2026484 PMAQI
26th Jul 2026445 PMAQI
26th Jul 2026406 PMAQI
26th Jul 2026467 PMAQI
26th Jul 2026508 PMAQI
26th Jul 2026429 PMAQI
26th Jul 20264210 PMAQI
26th Jul 20264211 PMAQI
27th Jul 20264012 AMAQI
27th Jul 2026401 AMAQI
27th Jul 2026482 AMAQI
27th Jul 2026443 AMAQI
27th Jul 2026444 AMAQI

26°C22/31°C

27th Jul 2026425 AMAQI
27th Jul 2026446 AMAQI
27th Jul 2026427 AMAQI
27th Jul 2026368 AMAQI
27th Jul 2026429 AMAQI
27th Jul 20263810 AMAQI
27th Jul 20264611 AMAQI
27th Jul 20265012 PMAQI
27th Jul 2026481 PMAQI
27th Jul 2026502 PMAQI
27th Jul 2026403 PMAQI
27th Jul 2026504 PMAQI
27th Jul 2026445 PMAQI
27th Jul 2026446 PMAQI
27th Jul 2026497 PMAQI
27th Jul 2026538 PMAQI
27th Jul 2026409 PMAQI
27th Jul 20263810 PMAQI
27th Jul 20264011 PMAQI
28th Jul 20263812 AMAQI
28th Jul 2026401 AMAQI
28th Jul 2026402 AMAQI
28th Jul 2026383 AMAQI
28th Jul 2026424 AMAQI

26°C22/32°C

28th Jul 2026425 AMAQI
28th Jul 2026406 AMAQI
28th Jul 2026387 AMAQI
28th Jul 2026408 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20263310 AMAQI
28th Jul 20263811 AMAQI
28th Jul 20263612 PMAQI
28th Jul 2026381 PMAQI
28th Jul 2026402 PMAQI
28th Jul 2026333 PMAQI
28th Jul 2026424 PMAQI
28th Jul 2026315 PMAQI
28th Jul 2026446 PMAQI
28th Jul 2026507 PMAQI
28th Jul 2026448 PMAQI
28th Jul 2026529 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20263111 PMAQI
29th Jul 20262512 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026333 AMAQI
29th Jul 2026294 AMAQI

26°C22/32°C

29th Jul 2026255 AMAQI
29th Jul 2026256 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026218 AMAQI
29th Jul 2026219 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20263811 AMAQI
29th Jul 20264012 PMAQI
29th Jul 2026421 PMAQI
29th Jul 2026362 PMAQI
29th Jul 2026403 PMAQI
29th Jul 2026334 PMAQI
29th Jul 2026385 PMAQI
29th Jul 2026366 PMAQI
29th Jul 2026337 PMAQI
29th Jul 2026428 PMAQI
29th Jul 2026299 PMAQI
29th Jul 20262910 PMAQI
29th Jul 20262911 PMAQI
30th Jul 20262912 AMAQI
30th Jul 2026271 AMAQI
30th Jul 2026332 AMAQI
30th Jul 2026273 AMAQI
30th Jul 2026324 AMAQI

24°C21/28°C

30th Jul 2026365 AMAQI
30th Jul 2026256 AMAQI
30th Jul 2026297 AMAQI
30th Jul 2026318 AMAQI
30th Jul 2026219 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262112 PMAQI
30th Jul 2026231 PMAQI
30th Jul 2026252 PMAQI
30th Jul 2026313 PMAQI
30th Jul 2026334 PMAQI
30th Jul 2026335 PMAQI
30th Jul 2026336 PMAQI
30th Jul 2026337 PMAQI
30th Jul 2026298 PMAQI
30th Jul 2026299 PMAQI
30th Jul 20263110 PMAQI
30th Jul 20263111 PMAQI
31st Jul 20262912 AMAQI
31st Jul 2026291 AMAQI
31st Jul 2026312 AMAQI
31st Jul 2026293 AMAQI
31st Jul 2026294 AMAQI

27°C22/32°C

31st Jul 2026315 AMAQI
31st Jul 2026316 AMAQI
31st Jul 2026297 AMAQI
31st Jul 2026278 AMAQI
31st Jul 2026299 AMAQI
31st Jul 20262710 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262712 PMAQI
31st Jul 2026291 PMAQI
31st Jul 2026252 PMAQI
31st Jul 2026293 PMAQI
31st Jul 2026254 PMAQI
31st Jul 2026295 PMAQI
31st Jul 2026296 PMAQI
31st Jul 2026297 PMAQI
31st Jul 2026318 PMAQI
31st Jul 2026339 PMAQI
31st Jul 20263110 PMAQI
31st Jul 20266411 PMAQI
1st Aug 20264412 AMAQI
1st Aug 2026401 AMAQI
1st Aug 2026422 AMAQI
1st Aug 2026483 AMAQI
1st Aug 2026484 AMAQI

26°C21/32°C

1st Aug 2026485 AMAQI
1st Aug 2026426 AMAQI
1st Aug 2026427 AMAQI
1st Aug 2026408 AMAQI
1st Aug 2026389 AMAQI
1st Aug 20263810 AMAQI
1st Aug 20264011 AMAQI
1st Aug 20264912 PMAQI
1st Aug 2026441 PMAQI
1st Aug 2026502 PMAQI
1st Aug 2026483 PMAQI
1st Aug 2026404 PMAQI
1st Aug 2026385 PMAQI
1st Aug 2026386 PMAQI
1st Aug 2026387 PMAQI
1st Aug 2026468 PMAQI
1st Aug 2026489 PMAQI
1st Aug 20264410 PMAQI
1st Aug 20264611 PMAQI
2nd Aug 20264612 AMAQI
2nd Aug 2026501 AMAQI
2nd Aug 2026442 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026464 AMAQI

26°C21/33°C

2nd Aug 2026465 AMAQI
5 AM
2nd Aug 2026466 AMAQI
2nd Aug 2026487 AMAQI
2nd Aug 2026518 AMAQI
2nd Aug 2026509 AMAQI
2nd Aug 20265310 AMAQI
2nd Aug 20264811 AMAQI
2nd Aug 20264612 PMAQI
12 PM
2nd Aug 2026361 PMAQI
2nd Aug 2026382 PMAQI
2nd Aug 2026383 PMAQI
2nd Aug 2026294 PMAQI
2nd Aug 2026335 PMAQI
2nd Aug 2026316 PMAQI
2nd Aug 2026337 PMAQI
7 PM
2nd Aug 2026368 PMAQI
2nd Aug 2026389 PMAQI
2nd Aug 20263610 PMAQI
2nd Aug 20263611 PMAQI
12 AM
4 AM

27°C22/33°C

Day time
Avg. Highest Time
7 PM

42AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM - 6 PM

39AQI

14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 42), while the lowest AQI was between 5 AM to 6 PM (Avg. 39).
Night time
Avg. Highest Time
8 PM - 11 PM

43AQI

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

41AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 43), while the lowest AQI was between 3 AM to 4 AM (Avg. 41).

2026 Days Vs Air Quality

Omachi, Saijo, Ehime, Japan

2026

73%

156

27%

58

Total number of days with different AQI categories in last 214 days in 2026 (151 days remaining)

Good
156 Days
Moderate
58 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 73%

Health Risk Level:

Low

In 2026, 73% of 214 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

Omachi, 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
28AQI (US)
3rd January 2026
33AQI (US)
4th January 2026
45AQI (US)
5th January 2026
55AQI (US)
6th January 2026
33AQI (US)
7th January 2026
37AQI (US)
8th January 2026
44AQI (US)
9th January 2026
26AQI (US)
10th January 2026
34AQI (US)
11th January 2026
35AQI (US)
12th January 2026
28AQI (US)
13th January 2026
33AQI (US)
14th January 2026
31AQI (US)
15th January 2026
60AQI (US)
16th January 2026
61AQI (US)
17th January 2026
64AQI (US)
18th January 2026
64AQI (US)
19th January 2026
70AQI (US)
20th January 2026
36AQI (US)
21st January 2026
23AQI (US)
22nd January 2026
29AQI (US)
23rd January 2026
35AQI (US)
24th January 2026
47AQI (US)
25th January 2026
41AQI (US)
26th January 2026
22AQI (US)
27th January 2026
43AQI (US)
28th January 2026
37AQI (US)
29th January 2026
37AQI (US)
30th January 2026
27AQI (US)
31st January 2026
22AQI (US)
1st February 2026
44AQI (US)
2nd February 2026
48AQI (US)
3rd February 2026
32AQI (US)
4th February 2026
35AQI (US)
5th February 2026
41AQI (US)
6th February 2026
45AQI (US)
7th February 2026
30AQI (US)
8th February 2026
24AQI (US)
9th February 2026
38AQI (US)
10th February 2026
44AQI (US)
11th February 2026
51AQI (US)
12th February 2026
41AQI (US)
13th February 2026
39AQI (US)
14th February 2026
64AQI (US)
15th February 2026
73AQI (US)
16th February 2026
49AQI (US)
17th February 2026
28AQI (US)
18th February 2026
25AQI (US)
19th February 2026
50AQI (US)
20th February 2026
53AQI (US)
21st February 2026
63AQI (US)
22nd February 2026
73AQI (US)
23rd February 2026
70AQI (US)
24th February 2026
60AQI (US)
25th February 2026
39AQI (US)
26th February 2026
22AQI (US)
27th February 2026
55AQI (US)
28th February 2026
19AQI (US)
1st March 2026
34AQI (US)
2nd March 2026
59AQI (US)
3rd March 2026
42AQI (US)
4th March 2026
32AQI (US)
5th March 2026
49AQI (US)
6th March 2026
49AQI (US)
7th March 2026
40AQI (US)
8th March 2026
27AQI (US)
9th March 2026
43AQI (US)
10th March 2026
56AQI (US)
11th March 2026
55AQI (US)
12th March 2026
58AQI (US)
13th March 2026
37AQI (US)
14th March 2026
42AQI (US)
15th March 2026
59AQI (US)
16th March 2026
50AQI (US)
17th March 2026
46AQI (US)
18th March 2026
63AQI (US)
19th March 2026
48AQI (US)
20th March 2026
57AQI (US)
21st March 2026
46AQI (US)
22nd March 2026
60AQI (US)
23rd March 2026
58AQI (US)
24th March 2026
54AQI (US)
25th March 2026
54AQI (US)
26th March 2026
12AQI (US)
27th March 2026
39AQI (US)
28th March 2026
69AQI (US)
29th March 2026
81AQI (US)
30th March 2026
91AQI (US)
31st March 2026
30AQI (US)
1st April 2026
16AQI (US)
2nd April 2026
49AQI (US)
3rd April 2026
55AQI (US)
4th April 2026
40AQI (US)
5th April 2026
22AQI (US)
6th April 2026
54AQI (US)
7th April 2026
41AQI (US)
8th April 2026
40AQI (US)
9th April 2026
49AQI (US)
10th April 2026
37AQI (US)
11th April 2026
37AQI (US)
12th April 2026
37AQI (US)
13th April 2026
47AQI (US)
14th April 2026
70AQI (US)
15th April 2026
62AQI (US)
16th April 2026
27AQI (US)
17th April 2026
43AQI (US)
18th April 2026
54AQI (US)
19th April 2026
57AQI (US)
20th April 2026
47AQI (US)
21st April 2026
38AQI (US)
22nd April 2026
40AQI (US)
23rd April 2026
31AQI (US)
24th April 2026
19AQI (US)
25th April 2026
46AQI (US)
26th April 2026
37AQI (US)
27th April 2026
31AQI (US)
28th April 2026
51AQI (US)
29th April 2026
47AQI (US)
30th April 2026
25AQI (US)
1st May 2026
31AQI (US)
2nd May 2026
56AQI (US)
3rd May 2026
42AQI (US)
4th May 2026
25AQI (US)
5th May 2026
26AQI (US)
6th May 2026
29AQI (US)
7th May 2026
42AQI (US)
8th May 2026
30AQI (US)
9th May 2026
27AQI (US)
10th May 2026
31AQI (US)
11th May 2026
34AQI (US)
12th May 2026
32AQI (US)
13th May 2026
38AQI (US)
14th May 2026
31AQI (US)
15th May 2026
34AQI (US)
16th May 2026
78AQI (US)
17th May 2026
64AQI (US)
18th May 2026
53AQI (US)
19th May 2026
47AQI (US)
20th May 2026
61AQI (US)
21st May 2026
65AQI (US)
22nd May 2026
70AQI (US)
23rd May 2026
60AQI (US)
24th May 2026
63AQI (US)
25th May 2026
55AQI (US)
26th May 2026
41AQI (US)
27th May 2026
26AQI (US)
28th May 2026
26AQI (US)
29th May 2026
25AQI (US)
30th May 2026
25AQI (US)
31st May 2026
28AQI (US)
1st June 2026
33AQI (US)
2nd June 2026
22AQI (US)
3rd June 2026
17AQI (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
27AQI (US)
15th June 2026
26AQI (US)
16th June 2026
28AQI (US)
17th June 2026
25AQI (US)
18th June 2026
27AQI (US)
19th June 2026
38AQI (US)
20th June 2026
52AQI (US)
21st June 2026
17AQI (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
27AQI (US)
28th June 2026
34AQI (US)
29th June 2026
28AQI (US)
30th June 2026
44AQI (US)
1st July 2026
57AQI (US)
2nd July 2026
12AQI (US)
3rd July 2026
24AQI (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
34AQI (US)
10th July 2026
31AQI (US)
11th July 2026
30AQI (US)
12th July 2026
28AQI (US)
13th July 2026
29AQI (US)
14th July 2026
29AQI (US)
15th July 2026
26AQI (US)
16th July 2026
30AQI (US)
17th July 2026
36AQI (US)
18th July 2026
55AQI (US)
19th July 2026
57AQI (US)
20th July 2026
56AQI (US)
21st July 2026
62AQI (US)
22nd July 2026
68AQI (US)
23rd July 2026
61AQI (US)
24th July 2026
60AQI (US)
25th July 2026
55AQI (US)
26th July 2026
51AQI (US)
27th July 2026
44AQI (US)
28th July 2026
39AQI (US)
29th July 2026
31AQI (US)
30th July 2026
28AQI (US)
31st July 2026
30AQI (US)
1st August 2026
43AQI (US)
2nd August 2026
42AQI (US)
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
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

39AQI (US)

45AQI (US)

50AQI (US)

42AQI (US)

42AQI (US)

27AQI (US)

39AQI (US)

43AQI (US)

No. of days

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

202640AQI (US)

25
6
19
9
17
14
23
7
21
10
29
1
20
11
2
156
58

Highest AQI (US) recorded in

March

50AQI (US)

Lowest AQI (US) recorded in

June

27AQI (US)

202550AQI (US)

26
5
23
5
14
16
1
14
16
20
11
11
19
17
13
1
29
2
30
6
25
4
26
15
16
209
154
2

Highest AQI (US) recorded in

October

59AQI (US)

Lowest AQI (US) recorded in

September

32AQI (US)

202446AQI (US)

26
5
21
8
17
14
5
23
2
10
21
13
17
26
5
25
6
21
9
24
7
21
9
31
240
124
2

Highest AQI (US) recorded in

April

65AQI (US)

Lowest AQI (US) recorded in

December

33AQI (US)

202347AQI (US)

23
8
18
10
9
21
1
6
23
1
15
16
12
18
23
8
31
26
4
22
9
18
11
21
10
224
138
2

Highest AQI (US) recorded in

April

64AQI (US)

Lowest AQI (US) recorded in

August

27AQI (US)

202247AQI (US)

22
7
18
3
10
21
5
12
6
25
16
14
17
5
1
25
3
24
7
14
16
28
3
186
116

Highest AQI (US) recorded in

May

62AQI (US)

Lowest AQI (US) recorded in

December

38AQI (US)

202146AQI (US)

22
8
18
10
12
17
12
9
15
16
9
21
18
13
23
8
24
6
21
10
20
10
28
3
222
131

Highest AQI (US) recorded in

June

58AQI (US)

Lowest AQI (US) recorded in

December

38AQI (US)

202048AQI (US)

5
7
1
11
10
5
13
13
17
23
8
13
14
4
17
2
23
8
21
9
20
11
151
99
5

Highest AQI (US) recorded in

August

65AQI (US)

Lowest AQI (US) recorded in

September

34AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
50AQI (US)
Least Polluted Year Recorded
2026(Avg.)
40AQI (US)

Omachi's annual 2026 AQI (US) (40) shows an average percentage change of -15.4% (improved AQI (US)) compared to previous years: 2020 (48), 2021 (46), 2022 (47), 2023 (47), 2024 (46), 2025 (50).