Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Omihachiman, Shiga, 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+

July Air Quality Analysis

Omihachiman, Shiga, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Jul 2025
89AQI
Lowest AQI recorded on
5th Jul 2022
16AQI

Same Day Analysis (31st July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 36 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 30th Jul - 31st Jul 2026

Omihachiman, Shiga, Japan

AQI
Day
Night
.

4 AM30th Jul 2026

7 PM

3 AM31st Jul 2026

Day time
Avg. Highest Time
1PM30th Jul

59AQI

Avg. Lowest Time
9AM30th Jul

42AQI

Night time
Avg. Highest Time
4AM30th Jul

45AQI

Avg. Lowest Time
1AM31st Jul

32AQI

In the last 24 hours,

Omihachiman's AQI reached its highest point of 59 at 1 PM during the Day, while the lowest point, 32, was recorded at 1 AM during the Night between 30th Jul and 31st Jul 2026.

Day & Night AQI Trend : Jul 2026

Omihachiman, Shiga, Japan

Jul
02nd - 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 - 31st31st
Day
Night
2nd Jul 2026174 AMAQI
2nd Jul 2026125 AMAQI
2nd Jul 2026166 AMAQI
2nd Jul 2026157 AMAQI
2nd Jul 2026178 AMAQI
2nd Jul 2026129 AMAQI
2nd Jul 20261210 AMAQI
2nd Jul 20261311 AMAQI
2nd Jul 20262012 PMAQI
2nd Jul 2026181 PMAQI
2nd Jul 2026152 PMAQI
2nd Jul 2026133 PMAQI
2nd Jul 2026144 PMAQI
2nd Jul 2026205 PMAQI
2nd Jul 2026216 PMAQI
2nd Jul 2026127 PMAQI
2nd Jul 2026138 PMAQI
2nd Jul 2026119 PMAQI
2nd Jul 20261410 PMAQI
2nd Jul 20261611 PMAQI
3rd Jul 20261312 AMAQI
3rd Jul 2026201 AMAQI
3rd Jul 2026222 AMAQI
3rd Jul 2026203 AMAQI

22°C20/24°C

3rd Jul 2026224 AMAQI
3rd Jul 2026245 AMAQI
3rd Jul 2026216 AMAQI
3rd Jul 2026197 AMAQI
3rd Jul 2026208 AMAQI
3rd Jul 2026209 AMAQI
3rd Jul 20261810 AMAQI
3rd Jul 20261911 AMAQI
3rd Jul 20262212 PMAQI
3rd Jul 2026161 PMAQI
3rd Jul 2026172 PMAQI
3rd Jul 2026263 PMAQI
3rd Jul 2026254 PMAQI
3rd Jul 2026295 PMAQI
3rd Jul 2026266 PMAQI
3rd Jul 2026267 PMAQI
3rd Jul 2026268 PMAQI
3rd Jul 2026269 PMAQI
3rd Jul 20262610 PMAQI
3rd Jul 20262711 PMAQI
4th Jul 20262712 AMAQI
4th Jul 2026291 AMAQI
4th Jul 2026282 AMAQI
4th Jul 2026283 AMAQI

22°C19/26°C

4th Jul 2026254 AMAQI
4th Jul 2026275 AMAQI
4th Jul 2026286 AMAQI
4th Jul 2026267 AMAQI
4th Jul 2026288 AMAQI
4th Jul 2026259 AMAQI
4th Jul 20262510 AMAQI
4th Jul 20262411 AMAQI
4th Jul 20262612 PMAQI
4th Jul 2026251 PMAQI
4th Jul 2026252 PMAQI
4th Jul 2026283 PMAQI
4th Jul 2026274 PMAQI
4th Jul 2026265 PMAQI
4th Jul 2026266 PMAQI
4th Jul 2026257 PMAQI
4th Jul 2026258 PMAQI
4th Jul 2026249 PMAQI
4th Jul 20262410 PMAQI
4th Jul 20262411 PMAQI
5th Jul 20262512 AMAQI
5th Jul 2026241 AMAQI
5th Jul 2026212 AMAQI
5th Jul 2026223 AMAQI

21°C20/23°C

5th Jul 2026234 AMAQI
5th Jul 2026245 AMAQI
5th Jul 2026246 AMAQI
5th Jul 2026237 AMAQI
5th Jul 2026228 AMAQI
5th Jul 2026199 AMAQI
5th Jul 20262010 AMAQI
5th Jul 20261811 AMAQI
5th Jul 20261912 PMAQI
5th Jul 2026191 PMAQI
5th Jul 2026212 PMAQI
5th Jul 2026253 PMAQI
5th Jul 2026244 PMAQI
5th Jul 2026245 PMAQI
5th Jul 2026236 PMAQI
5th Jul 2026247 PMAQI
5th Jul 2026208 PMAQI
5th Jul 2026249 PMAQI
5th Jul 20261610 PMAQI
5th Jul 20262411 PMAQI
6th Jul 20262412 AMAQI
6th Jul 2026251 AMAQI
6th Jul 2026242 AMAQI
6th Jul 2026243 AMAQI

21°C20/22°C

6th Jul 2026204 AMAQI
6th Jul 2026205 AMAQI
6th Jul 2026166 AMAQI
6th Jul 2026137 AMAQI
6th Jul 2026178 AMAQI
6th Jul 2026109 AMAQI
6th Jul 20262810 AMAQI
6th Jul 20262411 AMAQI
6th Jul 20261812 PMAQI
6th Jul 2026101 PMAQI
6th Jul 202682 PMAQI
6th Jul 202683 PMAQI
6th Jul 202684 PMAQI
6th Jul 2026155 PMAQI
6th Jul 202686 PMAQI
6th Jul 202687 PMAQI
6th Jul 202698 PMAQI
6th Jul 2026129 PMAQI
6th Jul 2026810 PMAQI
6th Jul 2026811 PMAQI
7th Jul 2026812 AMAQI
7th Jul 202681 AMAQI
7th Jul 202682 AMAQI
7th Jul 202683 AMAQI

21°C21/22°C

7th Jul 2026124 AMAQI
7th Jul 2026135 AMAQI
7th Jul 202686 AMAQI
7th Jul 2026247 AMAQI
7th Jul 202688 AMAQI
7th Jul 2026169 AMAQI
7th Jul 20262310 AMAQI
7th Jul 20261511 AMAQI
7th Jul 20261912 PMAQI
7th Jul 2026221 PMAQI
7th Jul 2026242 PMAQI
7th Jul 2026283 PMAQI
7th Jul 2026244 PMAQI
7th Jul 2026305 PMAQI
7th Jul 2026286 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026288 PMAQI
7th Jul 2026299 PMAQI
7th Jul 20262710 PMAQI
7th Jul 20262511 PMAQI
8th Jul 20263012 AMAQI
8th Jul 2026281 AMAQI
8th Jul 2026282 AMAQI
8th Jul 2026283 AMAQI

23°C20/26°C

8th Jul 2026274 AMAQI
8th Jul 2026305 AMAQI
8th Jul 2026286 AMAQI
8th Jul 2026277 AMAQI
8th Jul 2026288 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262610 AMAQI
8th Jul 20262611 AMAQI
8th Jul 20262412 PMAQI
8th Jul 2026231 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026283 PMAQI
8th Jul 2026284 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026246 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026208 PMAQI
8th Jul 2026219 PMAQI
8th Jul 20262310 PMAQI
8th Jul 20262511 PMAQI
9th Jul 20262912 AMAQI
9th Jul 2026281 AMAQI
9th Jul 2026282 AMAQI
9th Jul 2026283 AMAQI

24°C21/28°C

9th Jul 2026264 AMAQI
9th Jul 2026275 AMAQI
9th Jul 2026266 AMAQI
9th Jul 2026287 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20262410 AMAQI
9th Jul 20262411 AMAQI
9th Jul 20262412 PMAQI
9th Jul 2026221 PMAQI
9th Jul 2026242 PMAQI
9th Jul 2026263 PMAQI
9th Jul 2026264 PMAQI
9th Jul 2026275 PMAQI
9th Jul 2026266 PMAQI
9th Jul 2026267 PMAQI
9th Jul 2026268 PMAQI
9th Jul 2026259 PMAQI
9th Jul 20262610 PMAQI
9th Jul 20262811 PMAQI
10th Jul 20262812 AMAQI
10th Jul 2026291 AMAQI
10th Jul 2026282 AMAQI
10th Jul 2026263 AMAQI

25°C20/29°C

10th Jul 2026254 AMAQI
10th Jul 2026285 AMAQI
10th Jul 2026306 AMAQI
10th Jul 2026297 AMAQI
10th Jul 2026288 AMAQI
10th Jul 2026269 AMAQI
10th Jul 20263010 AMAQI
10th Jul 20262611 AMAQI
10th Jul 20262412 PMAQI
10th Jul 2026261 PMAQI
10th Jul 2026232 PMAQI
10th Jul 2026223 PMAQI
10th Jul 2026254 PMAQI
10th Jul 2026285 PMAQI
10th Jul 2026306 PMAQI
10th Jul 2026297 PMAQI
10th Jul 2026328 PMAQI
10th Jul 2026309 PMAQI
10th Jul 20262810 PMAQI
10th Jul 20263111 PMAQI
11th Jul 20263312 AMAQI
11th Jul 2026261 AMAQI
11th Jul 2026312 AMAQI
11th Jul 2026303 AMAQI

25°C21/30°C

11th Jul 2026174 AMAQI
11th Jul 2026295 AMAQI
11th Jul 2026296 AMAQI
11th Jul 2026307 AMAQI
11th Jul 2026318 AMAQI
11th Jul 2026329 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20262911 AMAQI
11th Jul 20262612 PMAQI
11th Jul 2026261 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026243 PMAQI
11th Jul 2026254 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026296 PMAQI
11th Jul 2026297 PMAQI
11th Jul 2026278 PMAQI
11th Jul 2026309 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20262912 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026302 AMAQI
12th Jul 2026303 AMAQI

25°C22/29°C

12th Jul 2026274 AMAQI
12th Jul 2026235 AMAQI
12th Jul 2026286 AMAQI
12th Jul 2026267 AMAQI
12th Jul 2026228 AMAQI
12th Jul 2026309 AMAQI
12th Jul 20262810 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262512 PMAQI
12th Jul 2026241 PMAQI
12th Jul 2026252 PMAQI
12th Jul 2026213 PMAQI
12th Jul 2026284 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026287 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026299 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262911 PMAQI
13th Jul 20263012 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026312 AMAQI
13th Jul 2026303 AMAQI

26°C24/29°C

13th Jul 2026284 AMAQI
13th Jul 2026285 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026297 AMAQI
13th Jul 2026298 AMAQI
13th Jul 2026309 AMAQI
13th Jul 20263210 AMAQI
13th Jul 20262911 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026261 PMAQI
13th Jul 2026262 PMAQI
13th Jul 2026223 PMAQI
13th Jul 2026274 PMAQI
13th Jul 2026305 PMAQI
13th Jul 2026286 PMAQI
13th Jul 2026307 PMAQI
13th Jul 2026308 PMAQI
13th Jul 2026309 PMAQI
13th Jul 20263010 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263112 AMAQI
14th Jul 2026321 AMAQI
14th Jul 2026312 AMAQI
14th Jul 2026303 AMAQI

27°C24/31°C

14th Jul 2026284 AMAQI
14th Jul 2026295 AMAQI
14th Jul 2026286 AMAQI
14th Jul 2026307 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026309 AMAQI
14th Jul 20263310 AMAQI
14th Jul 20262611 AMAQI
14th Jul 20262712 PMAQI
14th Jul 2026241 PMAQI
14th Jul 2026222 PMAQI
14th Jul 2026223 PMAQI
14th Jul 2026264 PMAQI
14th Jul 2026305 PMAQI
14th Jul 2026316 PMAQI
14th Jul 2026317 PMAQI
14th Jul 2026318 PMAQI
14th Jul 2026309 PMAQI
14th Jul 20263210 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263312 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026302 AMAQI
15th Jul 2026303 AMAQI

27°C23/32°C

15th Jul 2026284 AMAQI
15th Jul 2026305 AMAQI
15th Jul 2026266 AMAQI
15th Jul 2026307 AMAQI
15th Jul 2026308 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20263110 AMAQI
15th Jul 20262611 AMAQI
15th Jul 20262512 PMAQI
15th Jul 2026241 PMAQI
15th Jul 2026222 PMAQI
15th Jul 2026203 PMAQI
15th Jul 2026234 PMAQI
15th Jul 2026235 PMAQI
15th Jul 2026256 PMAQI
15th Jul 2026227 PMAQI
15th Jul 2026248 PMAQI
15th Jul 2026249 PMAQI
15th Jul 20262810 PMAQI
15th Jul 20262611 PMAQI
16th Jul 20264112 AMAQI
16th Jul 2026441 AMAQI
16th Jul 2026562 AMAQI
16th Jul 2026513 AMAQI

28°C24/33°C

16th Jul 2026704 AMAQI
16th Jul 2026635 AMAQI
16th Jul 2026646 AMAQI
16th Jul 2026687 AMAQI
16th Jul 2026668 AMAQI
16th Jul 2026649 AMAQI
16th Jul 20265810 AMAQI
16th Jul 20265311 AMAQI
16th Jul 20265212 PMAQI
16th Jul 2026571 PMAQI
16th Jul 2026562 PMAQI
16th Jul 2026583 PMAQI
16th Jul 2026524 PMAQI
16th Jul 2026535 PMAQI
16th Jul 2026546 PMAQI
16th Jul 2026527 PMAQI
16th Jul 2026488 PMAQI
16th Jul 2026439 PMAQI
16th Jul 20263910 PMAQI
16th Jul 20264211 PMAQI
17th Jul 20263712 AMAQI
17th Jul 2026401 AMAQI
17th Jul 2026422 AMAQI
17th Jul 2026393 AMAQI

27°C24/31°C

17th Jul 2026404 AMAQI
17th Jul 2026375 AMAQI
17th Jul 2026356 AMAQI
17th Jul 2026377 AMAQI
17th Jul 2026338 AMAQI
17th Jul 2026379 AMAQI
17th Jul 20263810 AMAQI
17th Jul 20264011 AMAQI
17th Jul 20264812 PMAQI
17th Jul 2026461 PMAQI
17th Jul 2026462 PMAQI
17th Jul 2026523 PMAQI
17th Jul 2026474 PMAQI
17th Jul 2026565 PMAQI
17th Jul 2026596 PMAQI
17th Jul 2026587 PMAQI
17th Jul 2026618 PMAQI
17th Jul 2026529 PMAQI
17th Jul 20265410 PMAQI
17th Jul 20265411 PMAQI
18th Jul 20265312 AMAQI
18th Jul 2026531 AMAQI
18th Jul 2026562 AMAQI
18th Jul 2026533 AMAQI

28°C23/32°C

18th Jul 2026524 AMAQI
18th Jul 2026525 AMAQI
18th Jul 2026566 AMAQI
18th Jul 2026567 AMAQI
18th Jul 2026568 AMAQI
18th Jul 2026539 AMAQI
18th Jul 20265610 AMAQI
18th Jul 20265411 AMAQI
18th Jul 20265812 PMAQI
18th Jul 2026601 PMAQI
18th Jul 2026642 PMAQI
18th Jul 2026593 PMAQI
18th Jul 2026534 PMAQI
18th Jul 2026545 PMAQI
18th Jul 2026506 PMAQI
18th Jul 2026397 PMAQI
18th Jul 2026388 PMAQI
18th Jul 2026379 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20264811 PMAQI
19th Jul 20264212 AMAQI
19th Jul 2026421 AMAQI
19th Jul 2026382 AMAQI
19th Jul 2026393 AMAQI

28°C25/33°C

19th Jul 2026384 AMAQI
19th Jul 2026375 AMAQI
19th Jul 2026366 AMAQI
19th Jul 2026347 AMAQI
19th Jul 2026328 AMAQI
19th Jul 2026299 AMAQI
19th Jul 20262610 AMAQI
19th Jul 20263311 AMAQI
19th Jul 20263712 PMAQI
19th Jul 2026341 PMAQI
19th Jul 2026322 PMAQI
19th Jul 2026423 PMAQI
19th Jul 2026484 PMAQI
19th Jul 2026405 PMAQI
19th Jul 2026296 PMAQI
19th Jul 2026317 PMAQI
19th Jul 2026328 PMAQI
19th Jul 2026269 PMAQI
19th Jul 20263010 PMAQI
19th Jul 20262311 PMAQI
20th Jul 20262712 AMAQI
20th Jul 2026281 AMAQI
20th Jul 2026282 AMAQI
20th Jul 2026273 AMAQI

28°C25/31°C

20th Jul 2026254 AMAQI
20th Jul 2026255 AMAQI
20th Jul 2026246 AMAQI
20th Jul 2026247 AMAQI
20th Jul 2026238 AMAQI
20th Jul 2026239 AMAQI
20th Jul 20263310 AMAQI
20th Jul 20263911 AMAQI
20th Jul 20264412 PMAQI
20th Jul 2026561 PMAQI
20th Jul 2026552 PMAQI
20th Jul 2026463 PMAQI
20th Jul 2026444 PMAQI
20th Jul 2026575 PMAQI
20th Jul 2026516 PMAQI
20th Jul 2026387 PMAQI
20th Jul 2026348 PMAQI
20th Jul 2026389 PMAQI
20th Jul 20264410 PMAQI
20th Jul 20265411 PMAQI
21st Jul 20266212 AMAQI
21st Jul 2026631 AMAQI
21st Jul 2026642 AMAQI
21st Jul 2026683 AMAQI

29°C25/33°C

21st Jul 2026664 AMAQI
21st Jul 2026665 AMAQI
21st Jul 2026666 AMAQI
21st Jul 2026657 AMAQI
21st Jul 2026668 AMAQI
21st Jul 2026619 AMAQI
21st Jul 20265910 AMAQI
21st Jul 20266211 AMAQI
21st Jul 2026641 PMAQI
21st Jul 2026672 PMAQI
21st Jul 2026663 PMAQI
21st Jul 2026644 PMAQI
21st Jul 2026645 PMAQI
21st Jul 2026646 PMAQI
21st Jul 2026967 PMAQI
21st Jul 2026708 PMAQI
21st Jul 2026669 PMAQI
21st Jul 20266610 PMAQI
21st Jul 20266611 PMAQI
22nd Jul 20266612 AMAQI
22nd Jul 2026711 AMAQI
22nd Jul 2026722 AMAQI
22nd Jul 2026703 AMAQI

29°C25/34°C

22nd Jul 2026674 AMAQI
22nd Jul 2026595 AMAQI
22nd Jul 2026586 AMAQI
22nd Jul 2026527 AMAQI
22nd Jul 2026508 AMAQI
22nd Jul 2026529 AMAQI
22nd Jul 20264810 AMAQI
22nd Jul 20266611 AMAQI
22nd Jul 20267312 PMAQI
22nd Jul 2026821 PMAQI
22nd Jul 2026842 PMAQI
22nd Jul 2026823 PMAQI
22nd Jul 2026824 PMAQI
22nd Jul 2026905 PMAQI
22nd Jul 2026866 PMAQI
22nd Jul 2026837 PMAQI
22nd Jul 2026858 PMAQI
22nd Jul 2026789 PMAQI
22nd Jul 20268010 PMAQI
22nd Jul 20268111 PMAQI
23rd Jul 20266612 AMAQI
23rd Jul 2026701 AMAQI
23rd Jul 2026702 AMAQI
23rd Jul 2026663 AMAQI

29°C26/34°C

23rd Jul 2026634 AMAQI
23rd Jul 2026615 AMAQI
23rd Jul 2026596 AMAQI
23rd Jul 2026587 AMAQI
23rd Jul 2026648 AMAQI
23rd Jul 2026459 AMAQI
23rd Jul 20263810 AMAQI
23rd Jul 20263611 AMAQI
23rd Jul 20264512 PMAQI
23rd Jul 2026381 PMAQI
23rd Jul 2026422 PMAQI
23rd Jul 2026423 PMAQI
23rd Jul 2026464 PMAQI
23rd Jul 2026575 PMAQI
23rd Jul 2026486 PMAQI
23rd Jul 2026477 PMAQI
23rd Jul 2026408 PMAQI
23rd Jul 2026309 PMAQI
23rd Jul 20263010 PMAQI
23rd Jul 20263311 PMAQI
24th Jul 20262912 AMAQI
24th Jul 2026281 AMAQI
24th Jul 2026272 AMAQI
24th Jul 2026253 AMAQI

29°C25/35°C

24th Jul 2026284 AMAQI
24th Jul 2026325 AMAQI
24th Jul 2026296 AMAQI
24th Jul 2026307 AMAQI
24th Jul 2026268 AMAQI
24th Jul 2026289 AMAQI
24th Jul 20262510 AMAQI
24th Jul 20263111 AMAQI
24th Jul 20263012 PMAQI
24th Jul 2026281 PMAQI
24th Jul 2026362 PMAQI
24th Jul 2026383 PMAQI
24th Jul 2026424 PMAQI
24th Jul 2026445 PMAQI
24th Jul 2026366 PMAQI
24th Jul 2026347 PMAQI
24th Jul 2026448 PMAQI
24th Jul 2026439 PMAQI
24th Jul 20263810 PMAQI
24th Jul 20263911 PMAQI
25th Jul 20264112 AMAQI
25th Jul 2026391 AMAQI
25th Jul 2026402 AMAQI
25th Jul 2026423 AMAQI

29°C25/35°C

25th Jul 2026404 AMAQI
25th Jul 2026415 AMAQI
25th Jul 2026436 AMAQI
25th Jul 2026417 AMAQI
25th Jul 2026398 AMAQI
25th Jul 2026479 AMAQI
25th Jul 20265010 AMAQI
25th Jul 20265211 AMAQI
25th Jul 20265212 PMAQI
25th Jul 2026521 PMAQI
25th Jul 2026502 PMAQI
25th Jul 2026493 PMAQI
25th Jul 2026474 PMAQI
25th Jul 2026485 PMAQI
25th Jul 2026436 PMAQI
25th Jul 2026427 PMAQI
25th Jul 2026368 PMAQI
25th Jul 2026349 PMAQI
25th Jul 20263610 PMAQI
25th Jul 20263411 PMAQI
26th Jul 20263712 AMAQI
26th Jul 2026371 AMAQI
26th Jul 2026372 AMAQI
26th Jul 2026363 AMAQI

29°C25/34°C

26th Jul 2026364 AMAQI
26th Jul 2026385 AMAQI
26th Jul 2026366 AMAQI
26th Jul 2026347 AMAQI
26th Jul 2026378 AMAQI
26th Jul 2026379 AMAQI
26th Jul 20264010 AMAQI
26th Jul 20264311 AMAQI
26th Jul 20264612 PMAQI
26th Jul 2026521 PMAQI
26th Jul 2026452 PMAQI
26th Jul 2026493 PMAQI
26th Jul 2026344 PMAQI
26th Jul 2026315 PMAQI
26th Jul 2026296 PMAQI
26th Jul 2026287 PMAQI
26th Jul 2026308 PMAQI
26th Jul 2026289 PMAQI
26th Jul 20262910 PMAQI
26th Jul 20262811 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026291 AMAQI
27th Jul 2026262 AMAQI
27th Jul 2026293 AMAQI

28°C24/34°C

27th Jul 2026274 AMAQI
27th Jul 2026275 AMAQI
27th Jul 2026266 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026288 AMAQI
27th Jul 2026329 AMAQI
27th Jul 20264010 AMAQI
27th Jul 20262811 AMAQI
27th Jul 20262712 PMAQI
27th Jul 2026241 PMAQI
27th Jul 2026212 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026224 PMAQI
27th Jul 2026235 PMAQI
27th Jul 2026246 PMAQI
27th Jul 2026227 PMAQI
27th Jul 2026228 PMAQI
27th Jul 2026219 PMAQI
27th Jul 20262210 PMAQI
27th Jul 20262311 PMAQI
28th Jul 20262212 AMAQI
28th Jul 2026241 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026233 AMAQI

29°C25/33°C

28th Jul 2026234 AMAQI
28th Jul 2026245 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026247 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026279 AMAQI
28th Jul 20262610 AMAQI
28th Jul 20262911 AMAQI
28th Jul 20263012 PMAQI
28th Jul 2026471 PMAQI
28th Jul 2026502 PMAQI
28th Jul 2026443 PMAQI
28th Jul 2026434 PMAQI
28th Jul 2026535 PMAQI
28th Jul 2026486 PMAQI
28th Jul 2026217 PMAQI
28th Jul 2026218 PMAQI
28th Jul 2026239 PMAQI
28th Jul 20262210 PMAQI
28th Jul 20262211 PMAQI
29th Jul 20262412 AMAQI
29th Jul 2026261 AMAQI
29th Jul 2026262 AMAQI
29th Jul 2026213 AMAQI

27°C24/31°C

29th Jul 2026214 AMAQI
29th Jul 2026295 AMAQI
29th Jul 2026236 AMAQI
29th Jul 2026217 AMAQI
29th Jul 2026218 AMAQI
29th Jul 2026259 AMAQI
29th Jul 20262410 AMAQI
29th Jul 20262511 AMAQI
29th Jul 20262812 PMAQI
29th Jul 2026401 PMAQI
29th Jul 2026422 PMAQI
29th Jul 2026403 PMAQI
29th Jul 2026364 PMAQI
29th Jul 2026345 PMAQI
29th Jul 2026406 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026298 PMAQI
29th Jul 2026289 PMAQI
29th Jul 20262910 PMAQI
29th Jul 20263311 PMAQI
30th Jul 20263412 AMAQI
30th Jul 2026401 AMAQI
30th Jul 2026432 AMAQI
30th Jul 2026453 AMAQI

26°C23/30°C

30th Jul 2026454 AMAQI
30th Jul 2026425 AMAQI
30th Jul 2026456 AMAQI
30th Jul 2026457 AMAQI
30th Jul 2026468 AMAQI
30th Jul 2026429 AMAQI
30th Jul 20265010 AMAQI
30th Jul 20265311 AMAQI
30th Jul 20265612 PMAQI
30th Jul 2026591 PMAQI
30th Jul 2026582 PMAQI
30th Jul 2026563 PMAQI
30th Jul 2026564 PMAQI
30th Jul 2026555 PMAQI
30th Jul 2026506 PMAQI
30th Jul 2026457 PMAQI
30th Jul 2026408 PMAQI
30th Jul 2026349 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20263711 PMAQI
31st Jul 20263412 AMAQI
31st Jul 2026321 AMAQI
31st Jul 2026342 AMAQI
31st Jul 2026343 AMAQI

29°C25/33°C

31st Jul 2026344 AMAQI
4 AM
31st Jul 2026375 AMAQI
31st Jul 2026316 AMAQI
31st Jul 2026347 AMAQI
31st Jul 2026368 AMAQI
31st Jul 2026409 AMAQI
31st Jul 20263910 AMAQI
31st Jul 20264811 AMAQI
11 AM
31st Jul 20264012 PMAQI
31st Jul 2026501 PMAQI
31st Jul 2026522 PMAQI
31st Jul 2026343 PMAQI
31st Jul 2026334 PMAQI
31st Jul 2026535 PMAQI
31st Jul 2026366 PMAQI
31st Jul 2026277 PMAQI
7 PM
31st Jul 2026298 PMAQI
31st Jul 2026289 PMAQI
31st Jul 20262510 PMAQI
31st Jul 20263111 PMAQI
11 PM
3 AM

28°C24/33°C

Day time
Avg. Highest Time
5 PM

39AQI

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

32AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 PM to 5 PM (Avg. 39), while the lowest AQI was between 9 AM to 9 AM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 8 PM

34AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
9 PM - 10 PM

32AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 8 PM (Avg. 34), while the lowest AQI was between 9 PM to 10 PM (Avg. 32).

2026 Days Vs Air Quality

Omihachiman, Shiga, Japan

2026

77%

164

23%

48

Total number of days with different AQI categories in last 212 days in 2026 (153 days remaining)

Good
164 Days
Moderate
48 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 77%

Health Risk Level:

Low

In 2026, 77% of 212 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

Omihachiman, Shiga, 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
24AQI (US)
2nd January 2026
16AQI (US)
3rd January 2026
14AQI (US)
4th January 2026
31AQI (US)
5th January 2026
54AQI (US)
6th January 2026
17AQI (US)
7th January 2026
34AQI (US)
8th January 2026
40AQI (US)
9th January 2026
21AQI (US)
10th January 2026
44AQI (US)
11th January 2026
35AQI (US)
12th January 2026
31AQI (US)
13th January 2026
42AQI (US)
14th January 2026
26AQI (US)
15th January 2026
44AQI (US)
16th January 2026
70AQI (US)
17th January 2026
72AQI (US)
18th January 2026
46AQI (US)
19th January 2026
56AQI (US)
20th January 2026
28AQI (US)
21st January 2026
15AQI (US)
22nd January 2026
21AQI (US)
23rd January 2026
40AQI (US)
24th January 2026
45AQI (US)
25th January 2026
40AQI (US)
26th January 2026
24AQI (US)
27th January 2026
46AQI (US)
28th January 2026
29AQI (US)
29th January 2026
22AQI (US)
30th January 2026
34AQI (US)
31st January 2026
33AQI (US)
1st February 2026
38AQI (US)
2nd February 2026
52AQI (US)
3rd February 2026
34AQI (US)
4th February 2026
42AQI (US)
5th February 2026
60AQI (US)
6th February 2026
47AQI (US)
7th February 2026
12AQI (US)
8th February 2026
13AQI (US)
9th February 2026
38AQI (US)
10th February 2026
52AQI (US)
11th February 2026
44AQI (US)
12th February 2026
53AQI (US)
13th February 2026
63AQI (US)
14th February 2026
78AQI (US)
15th February 2026
64AQI (US)
16th February 2026
52AQI (US)
17th February 2026
17AQI (US)
18th February 2026
26AQI (US)
19th February 2026
34AQI (US)
20th February 2026
34AQI (US)
21st February 2026
57AQI (US)
22nd February 2026
46AQI (US)
23rd February 2026
47AQI (US)
24th February 2026
54AQI (US)
25th February 2026
20AQI (US)
26th February 2026
14AQI (US)
27th February 2026
48AQI (US)
28th February 2026
48AQI (US)
1st March 2026
50AQI (US)
2nd March 2026
73AQI (US)
3rd March 2026
49AQI (US)
4th March 2026
63AQI (US)
5th March 2026
56AQI (US)
6th March 2026
50AQI (US)
7th March 2026
44AQI (US)
8th March 2026
46AQI (US)
9th March 2026
51AQI (US)
10th March 2026
59AQI (US)
11th March 2026
56AQI (US)
12th March 2026
66AQI (US)
13th March 2026
46AQI (US)
14th March 2026
47AQI (US)
15th March 2026
61AQI (US)
16th March 2026
62AQI (US)
17th March 2026
54AQI (US)
18th March 2026
60AQI (US)
19th March 2026
38AQI (US)
20th March 2026
55AQI (US)
21st March 2026
54AQI (US)
22nd March 2026
56AQI (US)
23rd March 2026
52AQI (US)
24th March 2026
59AQI (US)
25th March 2026
64AQI (US)
26th March 2026
14AQI (US)
27th March 2026
32AQI (US)
28th March 2026
66AQI (US)
29th March 2026
76AQI (US)
30th March 2026
54AQI (US)
31st March 2026
22AQI (US)
1st April 2026
23AQI (US)
2nd April 2026
41AQI (US)
3rd April 2026
48AQI (US)
4th April 2026
38AQI (US)
5th April 2026
20AQI (US)
6th April 2026
36AQI (US)
7th April 2026
41AQI (US)
8th April 2026
37AQI (US)
9th April 2026
42AQI (US)
10th April 2026
47AQI (US)
11th April 2026
36AQI (US)
12th April 2026
38AQI (US)
13th April 2026
36AQI (US)
14th April 2026
48AQI (US)
15th April 2026
37AQI (US)
16th April 2026
36AQI (US)
17th April 2026
42AQI (US)
18th April 2026
33AQI (US)
19th April 2026
38AQI (US)
20th April 2026
38AQI (US)
21st April 2026
41AQI (US)
22nd April 2026
48AQI (US)
23rd April 2026
37AQI (US)
24th April 2026
32AQI (US)
25th April 2026
46AQI (US)
26th April 2026
50AQI (US)
27th April 2026
49AQI (US)
28th April 2026
46AQI (US)
29th April 2026
40AQI (US)
30th April 2026
35AQI (US)
1st May 2026
47AQI (US)
2nd May 2026
52AQI (US)
3rd May 2026
54AQI (US)
4th May 2026
26AQI (US)
5th May 2026
22AQI (US)
6th May 2026
34AQI (US)
7th May 2026
36AQI (US)
8th May 2026
28AQI (US)
9th May 2026
28AQI (US)
10th May 2026
35AQI (US)
11th May 2026
37AQI (US)
12th May 2026
40AQI (US)
13th May 2026
45AQI (US)
14th May 2026
42AQI (US)
15th May 2026
41AQI (US)
16th May 2026
84AQI (US)
17th May 2026
67AQI (US)
18th May 2026
54AQI (US)
19th May 2026
48AQI (US)
20th May 2026
62AQI (US)
21st May 2026
60AQI (US)
22nd May 2026
63AQI (US)
23rd May 2026
56AQI (US)
24th May 2026
60AQI (US)
25th May 2026
50AQI (US)
26th May 2026
40AQI (US)
27th May 2026
25AQI (US)
28th May 2026
26AQI (US)
29th May 2026
25AQI (US)
30th May 2026
24AQI (US)
31st May 2026
28AQI (US)
1st June 2026
30AQI (US)
2nd June 2026
31AQI (US)
3rd June 2026
28AQI (US)
4th June 2026
26AQI (US)
5th June 2026
24AQI (US)
6th June 2026
24AQI (US)
7th June 2026
22AQI (US)
8th June 2026
20AQI (US)
9th June 2026
24AQI (US)
10th June 2026
22AQI (US)
11th June 2026
26AQI (US)
12th June 2026
28AQI (US)
13th June 2026
29AQI (US)
14th June 2026
26AQI (US)
15th June 2026
24AQI (US)
16th June 2026
29AQI (US)
17th June 2026
24AQI (US)
18th June 2026
26AQI (US)
19th June 2026
30AQI (US)
20th June 2026
23AQI (US)
21st June 2026
21AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
22AQI (US)
25th June 2026
27AQI (US)
26th June 2026
30AQI (US)
27th June 2026
28AQI (US)
28th June 2026
29AQI (US)
29th June 2026
29AQI (US)
30th June 2026
47AQI (US)
1st July 2026
42AQI (US)
2nd July 2026
17AQI (US)
3rd July 2026
22AQI (US)
4th July 2026
26AQI (US)
5th July 2026
22AQI (US)
6th July 2026
16AQI (US)
7th July 2026
19AQI (US)
8th July 2026
26AQI (US)
9th July 2026
26AQI (US)
10th July 2026
28AQI (US)
11th July 2026
28AQI (US)
12th July 2026
27AQI (US)
13th July 2026
29AQI (US)
14th July 2026
29AQI (US)
15th July 2026
26AQI (US)
16th July 2026
54AQI (US)
17th July 2026
45AQI (US)
18th July 2026
52AQI (US)
19th July 2026
34AQI (US)
20th July 2026
36AQI (US)
21st July 2026
66AQI (US)
22nd July 2026
72AQI (US)
23rd July 2026
50AQI (US)
24th July 2026
33AQI (US)
25th July 2026
43AQI (US)
26th July 2026
36AQI (US)
27th July 2026
26AQI (US)
28th July 2026
30AQI (US)
29th July 2026
28AQI (US)
30th July 2026
46AQI (US)
31st July 2026
36AQI (US)
1st August 2026
2nd August 2026
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

35AQI (US)

42AQI (US)

53AQI (US)

39AQI (US)

43AQI (US)

26AQI (US)

35AQI (US)

No. of days

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

202639AQI (US)

27
4
18
10
11
20
30
21
10
30
27
4
164
48

Highest AQI (US) recorded in

March

53AQI (US)

Lowest AQI (US) recorded in

June

26AQI (US)

202544AQI (US)

26
5
24
4
22
9
19
11
21
10
23
7
18
13
20
11
30
23
8
14
16
21
10
261
104

Highest AQI (US) recorded in

July

52AQI (US)

Lowest AQI (US) recorded in

September

32AQI (US)

202437AQI (US)

27
4
26
3
23
8
20
9
1
29
2
28
2
27
4
30
1
28
2
30
1
27
3
30
1
325
40
1

Highest AQI (US) recorded in

April

49AQI (US)

Lowest AQI (US) recorded in

August

31AQI (US)

202342AQI (US)

24
7
23
5
16
15
16
14
25
6
23
7
26
5
31
28
2
26
5
20
9
18
13
276
88

Highest AQI (US) recorded in

April

54AQI (US)

Lowest AQI (US) recorded in

August

27AQI (US)

202243AQI (US)

28
2
16
5
18
13
20
10
16
15
22
8
20
4
1
27
2
28
3
21
9
28
3
245
74

Highest AQI (US) recorded in

March

51AQI (US)

Lowest AQI (US) recorded in

September

35AQI (US)

202138AQI (US)

26
4
18
10
26
5
23
7
20
11
25
5
28
3
27
4
26
4
31
22
8
24
7
296
68

Highest AQI (US) recorded in

May

46AQI (US)

Lowest AQI (US) recorded in

April

29AQI (US)

202037AQI (US)

8
5
17
4
16
2
24
6
29
2
20
11
17
2
28
3
25
5
29
2
213
42

Highest AQI (US) recorded in

August

48AQI (US)

Lowest AQI (US) recorded in

July

28AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
44AQI (US)
Least Polluted Year Recorded
2020(Avg.)
37AQI (US)

Omihachiman's annual 2026 AQI (US) (39) shows an average percentage change of -2.3% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (38), 2022 (43), 2023 (42), 2024 (37), 2025 (44).