Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Nishigata, Niimi, Okayama, 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

Nishigata, Niimi, Okayama, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2025
59AQI
Lowest AQI recorded on
29th Aug 2024
12AQI

Same Day Analysis (14th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 44 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 13th Aug - 14th Aug 2026

Nishigata, Niimi, Okayama, Japan

AQI
Day
Night
.

5 AM13th Aug 2026

7 PM

4 AM14th Aug 2026

Day time
Avg. Highest Time
3PM13th Aug

38AQI

Avg. Lowest Time
6AM13th Aug

23AQI

Night time
Avg. Highest Time
7PM13th Aug

33AQI

Avg. Lowest Time
9PM13th Aug

23AQI

In the last 24 hours,

Nishigata's AQI reached its highest point of 38 at 3 PM during the Day, while the lowest point, 23, was recorded at 9 PM during the Night between 13th Aug and 14th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Nishigata, Niimi, Okayama, Japan

JulAug
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
16th Jul 2026285 AMAQI
16th Jul 2026266 AMAQI
16th Jul 2026277 AMAQI
16th Jul 2026288 AMAQI
16th Jul 2026269 AMAQI
16th Jul 20262910 AMAQI
16th Jul 20262711 AMAQI
16th Jul 20262712 PMAQI
16th Jul 2026251 PMAQI
16th Jul 2026252 PMAQI
16th Jul 2026243 PMAQI
16th Jul 2026264 PMAQI
16th Jul 2026255 PMAQI
16th Jul 2026266 PMAQI
16th Jul 2026297 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026289 PMAQI
16th Jul 20262810 PMAQI
16th Jul 20263011 PMAQI
17th Jul 20263012 AMAQI
17th Jul 2026281 AMAQI
17th Jul 2026282 AMAQI
17th Jul 2026263 AMAQI
17th Jul 2026294 AMAQI

25°C19/30°C

17th Jul 2026285 AMAQI
17th Jul 2026296 AMAQI
17th Jul 2026287 AMAQI
17th Jul 2026248 AMAQI
17th Jul 2026249 AMAQI
17th Jul 20262910 AMAQI
17th Jul 20262611 AMAQI
17th Jul 20262912 PMAQI
17th Jul 2026251 PMAQI
17th Jul 2026242 PMAQI
17th Jul 2026243 PMAQI
17th Jul 2026464 PMAQI
17th Jul 2026505 PMAQI
17th Jul 2026466 PMAQI
17th Jul 2026447 PMAQI
17th Jul 2026448 PMAQI
17th Jul 2026489 PMAQI
17th Jul 20264610 PMAQI
17th Jul 20264611 PMAQI
18th Jul 20264212 AMAQI
18th Jul 2026481 AMAQI
18th Jul 2026502 AMAQI
18th Jul 2026463 AMAQI
18th Jul 2026484 AMAQI

24°C19/32°C

18th Jul 2026465 AMAQI
18th Jul 2026506 AMAQI
18th Jul 2026487 AMAQI
18th Jul 2026488 AMAQI
18th Jul 2026489 AMAQI
18th Jul 20265210 AMAQI
18th Jul 20265211 AMAQI
18th Jul 20265412 PMAQI
18th Jul 2026531 PMAQI
18th Jul 2026532 PMAQI
18th Jul 2026523 PMAQI
18th Jul 2026574 PMAQI
18th Jul 2026575 PMAQI
18th Jul 2026636 PMAQI
18th Jul 2026597 PMAQI
18th Jul 2026628 PMAQI
18th Jul 2026629 PMAQI
18th Jul 20266210 PMAQI
18th Jul 20266611 PMAQI
19th Jul 20266612 AMAQI
19th Jul 2026681 AMAQI
19th Jul 2026712 AMAQI
19th Jul 2026663 AMAQI
19th Jul 2026674 AMAQI

24°C21/29°C

19th Jul 2026655 AMAQI
19th Jul 2026676 AMAQI
19th Jul 2026717 AMAQI
19th Jul 2026668 AMAQI
19th Jul 2026699 AMAQI
19th Jul 20266610 AMAQI
19th Jul 20266411 AMAQI
19th Jul 20266212 PMAQI
19th Jul 2026561 PMAQI
19th Jul 2026522 PMAQI
19th Jul 2026533 PMAQI
19th Jul 2026564 PMAQI
19th Jul 2026645 PMAQI
19th Jul 2026596 PMAQI
19th Jul 2026587 PMAQI
19th Jul 2026598 PMAQI
19th Jul 2026589 PMAQI
19th Jul 20265710 PMAQI
19th Jul 20265611 PMAQI
20th Jul 20265512 AMAQI
20th Jul 2026541 AMAQI
20th Jul 2026542 AMAQI
20th Jul 2026533 AMAQI
20th Jul 2026504 AMAQI

25°C21/30°C

20th Jul 2026525 AMAQI
20th Jul 2026516 AMAQI
20th Jul 2026517 AMAQI
20th Jul 2026538 AMAQI
20th Jul 2026519 AMAQI
20th Jul 20264610 AMAQI
20th Jul 20264911 AMAQI
20th Jul 20265212 PMAQI
20th Jul 2026531 PMAQI
20th Jul 2026522 PMAQI
20th Jul 2026533 PMAQI
20th Jul 2026534 PMAQI
20th Jul 2026555 PMAQI
20th Jul 2026536 PMAQI
20th Jul 2026547 PMAQI
20th Jul 2026588 PMAQI
20th Jul 2026569 PMAQI
20th Jul 20265310 PMAQI
20th Jul 20265511 PMAQI
21st Jul 20266212 AMAQI
21st Jul 2026601 AMAQI
21st Jul 2026632 AMAQI
21st Jul 2026573 AMAQI
21st Jul 2026554 AMAQI

25°C21/30°C

21st Jul 2026565 AMAQI
21st Jul 2026586 AMAQI
21st Jul 2026557 AMAQI
21st Jul 2026568 AMAQI
21st Jul 2026559 AMAQI
21st Jul 20265410 AMAQI
21st Jul 20265511 AMAQI
21st Jul 2026671 PMAQI
21st Jul 2026742 PMAQI
21st Jul 2026803 PMAQI
21st Jul 2026744 PMAQI
21st Jul 2026735 PMAQI
21st Jul 2026826 PMAQI
21st Jul 20261087 PMAQI
21st Jul 2026808 PMAQI
21st Jul 2026689 PMAQI
21st Jul 20266410 PMAQI
21st Jul 20265411 PMAQI
22nd Jul 20265212 AMAQI
22nd Jul 2026531 AMAQI
22nd Jul 2026482 AMAQI
22nd Jul 2026483 AMAQI
22nd Jul 2026504 AMAQI

25°C21/30°C

22nd Jul 2026525 AMAQI
22nd Jul 2026546 AMAQI
22nd Jul 2026567 AMAQI
22nd Jul 2026588 AMAQI
22nd Jul 2026579 AMAQI
22nd Jul 20266610 AMAQI
22nd Jul 20267311 AMAQI
22nd Jul 20267812 PMAQI
22nd Jul 2026641 PMAQI
22nd Jul 2026622 PMAQI
22nd Jul 2026623 PMAQI
22nd Jul 2026594 PMAQI
22nd Jul 2026365 PMAQI
22nd Jul 2026506 PMAQI
22nd Jul 2026687 PMAQI
22nd Jul 20261028 PMAQI
22nd Jul 2026739 PMAQI
22nd Jul 20263110 PMAQI
22nd Jul 20263611 PMAQI
23rd Jul 20263112 AMAQI
23rd Jul 2026271 AMAQI
23rd Jul 2026272 AMAQI
23rd Jul 2026253 AMAQI
23rd Jul 2026254 AMAQI

26°C21/33°C

23rd Jul 2026315 AMAQI
23rd Jul 2026316 AMAQI
23rd Jul 2026317 AMAQI
23rd Jul 2026298 AMAQI
23rd Jul 2026259 AMAQI
23rd Jul 20261910 AMAQI
23rd Jul 20262511 AMAQI
23rd Jul 20263112 PMAQI
23rd Jul 2026361 PMAQI
23rd Jul 2026602 PMAQI
23rd Jul 2026523 PMAQI
23rd Jul 2026744 PMAQI
23rd Jul 2026765 PMAQI
23rd Jul 2026746 PMAQI
23rd Jul 2026527 PMAQI
23rd Jul 2026558 PMAQI
23rd Jul 2026389 PMAQI
23rd Jul 20262710 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20261912 AMAQI
24th Jul 2026211 AMAQI
24th Jul 2026142 AMAQI
24th Jul 2026143 AMAQI
24th Jul 2026214 AMAQI

26°C20/34°C

24th Jul 2026215 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026237 AMAQI
24th Jul 2026218 AMAQI
24th Jul 2026179 AMAQI
24th Jul 20262910 AMAQI
24th Jul 20262711 AMAQI
24th Jul 20262712 PMAQI
24th Jul 2026291 PMAQI
24th Jul 2026212 PMAQI
24th Jul 2026313 PMAQI
24th Jul 2026334 PMAQI
24th Jul 2026405 PMAQI
24th Jul 2026366 PMAQI
24th Jul 2026447 PMAQI
24th Jul 2026408 PMAQI
24th Jul 2026389 PMAQI
24th Jul 20263310 PMAQI
24th Jul 20263311 PMAQI
25th Jul 20263112 AMAQI
25th Jul 2026311 AMAQI
25th Jul 2026332 AMAQI
25th Jul 2026313 AMAQI
25th Jul 2026274 AMAQI

26°C19/33°C

25th Jul 2026315 AMAQI
25th Jul 2026316 AMAQI
25th Jul 2026297 AMAQI
25th Jul 2026338 AMAQI
25th Jul 2026319 AMAQI
25th Jul 20263610 AMAQI
25th Jul 20263611 AMAQI
25th Jul 20264012 PMAQI
25th Jul 2026381 PMAQI
25th Jul 2026382 PMAQI
25th Jul 2026443 PMAQI
25th Jul 2026494 PMAQI
25th Jul 2026405 PMAQI
25th Jul 2026406 PMAQI
25th Jul 2026337 PMAQI
25th Jul 2026368 PMAQI
25th Jul 2026339 PMAQI
25th Jul 20263110 PMAQI
25th Jul 20262911 PMAQI
26th Jul 20262512 AMAQI
26th Jul 2026271 AMAQI
26th Jul 2026272 AMAQI
26th Jul 2026253 AMAQI
26th Jul 2026254 AMAQI

25°C19/33°C

26th Jul 2026255 AMAQI
26th Jul 2026256 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026218 AMAQI
26th Jul 2026219 AMAQI
26th Jul 20262110 AMAQI
26th Jul 20262311 AMAQI
26th Jul 20262112 PMAQI
26th Jul 2026211 PMAQI
26th Jul 2026212 PMAQI
26th Jul 2026213 PMAQI
26th Jul 2026214 PMAQI
26th Jul 2026215 PMAQI
26th Jul 2026236 PMAQI
26th Jul 2026257 PMAQI
26th Jul 2026278 PMAQI
26th Jul 2026279 PMAQI
26th Jul 20262710 PMAQI
26th Jul 20262711 PMAQI
27th Jul 20262712 AMAQI
27th Jul 2026251 AMAQI
27th Jul 2026252 AMAQI
27th Jul 2026273 AMAQI
27th Jul 2026274 AMAQI

25°C19/32°C

27th Jul 2026275 AMAQI
27th Jul 2026276 AMAQI
27th Jul 2026277 AMAQI
27th Jul 2026278 AMAQI
27th Jul 2026299 AMAQI
27th Jul 20262910 AMAQI
27th Jul 20263311 AMAQI
27th Jul 20263312 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026292 PMAQI
27th Jul 2026313 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026275 PMAQI
27th Jul 2026316 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026299 PMAQI
27th Jul 20262910 PMAQI
27th Jul 20263111 PMAQI
28th Jul 20263312 AMAQI
28th Jul 2026311 AMAQI
28th Jul 2026312 AMAQI
28th Jul 2026313 AMAQI
28th Jul 2026294 AMAQI

25°C20/31°C

28th Jul 2026315 AMAQI
28th Jul 2026336 AMAQI
28th Jul 2026337 AMAQI
28th Jul 2026298 AMAQI
28th Jul 2026339 AMAQI
28th Jul 20263610 AMAQI
28th Jul 20263611 AMAQI
28th Jul 20263312 PMAQI
28th Jul 2026311 PMAQI
28th Jul 2026332 PMAQI
28th Jul 2026333 PMAQI
28th Jul 2026314 PMAQI
28th Jul 2026295 PMAQI
28th Jul 2026316 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026338 PMAQI
28th Jul 2026299 PMAQI
28th Jul 20263110 PMAQI
28th Jul 20262911 PMAQI
29th Jul 20262712 AMAQI
29th Jul 2026291 AMAQI
29th Jul 2026272 AMAQI
29th Jul 2026273 AMAQI
29th Jul 2026294 AMAQI

25°C20/30°C

29th Jul 2026335 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026297 AMAQI
29th Jul 2026298 AMAQI
29th Jul 2026279 AMAQI
29th Jul 20263310 AMAQI
29th Jul 20263111 AMAQI
29th Jul 20263112 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026332 PMAQI
29th Jul 2026313 PMAQI
29th Jul 2026334 PMAQI
29th Jul 2026335 PMAQI
29th Jul 2026366 PMAQI
29th Jul 2026337 PMAQI
29th Jul 2026368 PMAQI
29th Jul 2026369 PMAQI
29th Jul 20263610 PMAQI
29th Jul 20263311 PMAQI
30th Jul 20263612 AMAQI
30th Jul 2026381 AMAQI
30th Jul 2026362 AMAQI
30th Jul 2026383 AMAQI
30th Jul 2026404 AMAQI

23°C19/29°C

30th Jul 2026385 AMAQI
30th Jul 2026386 AMAQI
30th Jul 2026387 AMAQI
30th Jul 2026388 AMAQI
30th Jul 2026389 AMAQI
30th Jul 20263810 AMAQI
30th Jul 20263611 AMAQI
30th Jul 20263612 PMAQI
30th Jul 2026361 PMAQI
30th Jul 2026332 PMAQI
30th Jul 2026313 PMAQI
30th Jul 2026364 PMAQI
30th Jul 2026365 PMAQI
30th Jul 2026386 PMAQI
30th Jul 2026367 PMAQI
30th Jul 2026368 PMAQI
30th Jul 2026339 PMAQI
30th Jul 20263110 PMAQI
30th Jul 20263311 PMAQI
31st Jul 20262912 AMAQI
31st Jul 2026291 AMAQI
31st Jul 2026252 AMAQI
31st Jul 2026293 AMAQI
31st Jul 2026254 AMAQI

25°C19/33°C

31st Jul 2026255 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026237 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026219 AMAQI
31st Jul 20262510 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262312 PMAQI
31st Jul 2026231 PMAQI
31st Jul 2026232 PMAQI
31st Jul 2026213 PMAQI
31st Jul 2026234 PMAQI
31st Jul 2026275 PMAQI
31st Jul 2026296 PMAQI
31st Jul 2026277 PMAQI
31st Jul 2026298 PMAQI
31st Jul 2026299 PMAQI
31st Jul 20262910 PMAQI
31st Jul 20262911 PMAQI
1st Aug 20263112 AMAQI
1st Aug 2026331 AMAQI
1st Aug 2026312 AMAQI
1st Aug 2026333 AMAQI
1st Aug 2026314 AMAQI

25°C18/34°C

1st Aug 2026315 AMAQI
1st Aug 2026296 AMAQI
1st Aug 2026317 AMAQI
1st Aug 2026338 AMAQI
1st Aug 2026319 AMAQI
1st Aug 20263110 AMAQI
1st Aug 20263111 AMAQI
1st Aug 20263112 PMAQI
1st Aug 2026311 PMAQI
1st Aug 2026312 PMAQI
1st Aug 2026313 PMAQI
1st Aug 2026334 PMAQI
1st Aug 2026315 PMAQI
1st Aug 2026316 PMAQI
1st Aug 2026337 PMAQI
1st Aug 2026338 PMAQI
1st Aug 2026339 PMAQI
1st Aug 20263310 PMAQI
1st Aug 20263611 PMAQI
2nd Aug 20263312 AMAQI
2nd Aug 2026311 AMAQI
2nd Aug 2026332 AMAQI
2nd Aug 2026333 AMAQI
2nd Aug 2026334 AMAQI

25°C19/33°C

2nd Aug 2026385 AMAQI
2nd Aug 2026336 AMAQI
2nd Aug 2026337 AMAQI
2nd Aug 2026338 AMAQI
2nd Aug 2026369 AMAQI
2nd Aug 20263310 AMAQI
2nd Aug 20263611 AMAQI
2nd Aug 20263812 PMAQI
2nd Aug 2026331 PMAQI
2nd Aug 2026332 PMAQI
2nd Aug 2026333 PMAQI
2nd Aug 2026334 PMAQI
2nd Aug 2026365 PMAQI
2nd Aug 2026366 PMAQI
2nd Aug 2026367 PMAQI
2nd Aug 2026368 PMAQI
2nd Aug 2026339 PMAQI
2nd Aug 20263610 PMAQI
2nd Aug 20263611 PMAQI
3rd Aug 20263612 AMAQI
3rd Aug 2026361 AMAQI
3rd Aug 2026332 AMAQI
3rd Aug 2026313 AMAQI
3rd Aug 2026334 AMAQI

26°C20/33°C

3rd Aug 2026335 AMAQI
3rd Aug 2026366 AMAQI
3rd Aug 2026367 AMAQI
3rd Aug 2026368 AMAQI
3rd Aug 2026369 AMAQI
3rd Aug 20263110 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20263612 PMAQI
3rd Aug 2026331 PMAQI
3rd Aug 2026332 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026334 PMAQI
3rd Aug 2026365 PMAQI
3rd Aug 2026366 PMAQI
3rd Aug 2026387 PMAQI
3rd Aug 2026388 PMAQI
3rd Aug 2026389 PMAQI
3rd Aug 20263310 PMAQI
3rd Aug 20263311 PMAQI
4th Aug 20263312 AMAQI
4th Aug 2026361 AMAQI
4th Aug 2026312 AMAQI
4th Aug 2026363 AMAQI
4th Aug 2026334 AMAQI

26°C20/35°C

4th Aug 2026335 AMAQI
4th Aug 2026336 AMAQI
4th Aug 2026337 AMAQI
4th Aug 2026368 AMAQI
4th Aug 2026319 AMAQI
4th Aug 20263310 AMAQI
4th Aug 20263811 AMAQI
4th Aug 20263612 PMAQI
4th Aug 2026331 PMAQI
4th Aug 2026362 PMAQI
4th Aug 2026363 PMAQI
4th Aug 2026384 PMAQI
4th Aug 2026365 PMAQI
4th Aug 2026366 PMAQI
4th Aug 2026387 PMAQI
4th Aug 2026368 PMAQI
4th Aug 2026339 PMAQI
4th Aug 20263610 PMAQI
4th Aug 20262911 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026291 AMAQI
5th Aug 2026272 AMAQI
5th Aug 2026293 AMAQI
5th Aug 2026274 AMAQI

25°C21/31°C

5th Aug 2026275 AMAQI
5th Aug 2026256 AMAQI
5th Aug 2026277 AMAQI
5th Aug 2026258 AMAQI
5th Aug 2026259 AMAQI
5th Aug 20262310 AMAQI
5th Aug 20262511 AMAQI
5th Aug 20262312 PMAQI
5th Aug 2026211 PMAQI
5th Aug 2026252 PMAQI
5th Aug 2026253 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026215 PMAQI
5th Aug 2026256 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026279 PMAQI
5th Aug 20262510 PMAQI
5th Aug 20262511 PMAQI
6th Aug 20262512 AMAQI
6th Aug 2026251 AMAQI
6th Aug 2026252 AMAQI
6th Aug 2026253 AMAQI
6th Aug 2026254 AMAQI

26°C21/32°C

6th Aug 2026255 AMAQI
6th Aug 2026276 AMAQI
6th Aug 2026257 AMAQI
6th Aug 2026258 AMAQI
6th Aug 2026259 AMAQI
6th Aug 20262510 AMAQI
6th Aug 20262511 AMAQI
6th Aug 20262312 PMAQI
6th Aug 2026231 PMAQI
6th Aug 2026212 PMAQI
6th Aug 2026213 PMAQI
6th Aug 2026214 PMAQI
6th Aug 2026235 PMAQI
6th Aug 2026216 PMAQI
6th Aug 2026257 PMAQI
6th Aug 2026258 PMAQI
6th Aug 2026219 PMAQI
6th Aug 20262110 PMAQI
6th Aug 20262111 PMAQI
7th Aug 20262112 AMAQI
7th Aug 2026211 AMAQI
7th Aug 2026212 AMAQI
7th Aug 2026213 AMAQI
7th Aug 2026214 AMAQI

25°C19/32°C

7th Aug 2026215 AMAQI
7th Aug 2026256 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026218 AMAQI
7th Aug 2026219 AMAQI
7th Aug 20262310 AMAQI
7th Aug 20262311 AMAQI
7th Aug 20262512 PMAQI
7th Aug 2026271 PMAQI
7th Aug 2026272 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026295 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026258 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20262510 PMAQI
7th Aug 20262511 PMAQI
8th Aug 20262912 AMAQI
8th Aug 2026251 AMAQI
8th Aug 2026252 AMAQI
8th Aug 2026253 AMAQI
8th Aug 2026254 AMAQI

26°C22/30°C

8th Aug 2026255 AMAQI
8th Aug 2026256 AMAQI
8th Aug 2026257 AMAQI
8th Aug 2026278 AMAQI
8th Aug 2026279 AMAQI
8th Aug 20262710 AMAQI
8th Aug 20262511 AMAQI
8th Aug 20262512 PMAQI
8th Aug 2026251 PMAQI
8th Aug 2026252 PMAQI
8th Aug 2026273 PMAQI
8th Aug 2026254 PMAQI
8th Aug 2026255 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026258 PMAQI
8th Aug 2026259 PMAQI
8th Aug 20262510 PMAQI
8th Aug 20262511 PMAQI
9th Aug 20262512 AMAQI
9th Aug 2026251 AMAQI
9th Aug 2026252 AMAQI
9th Aug 2026253 AMAQI
9th Aug 2026234 AMAQI

25°C19/31°C

9th Aug 2026255 AMAQI
9th Aug 2026216 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026298 AMAQI
9th Aug 2026279 AMAQI
9th Aug 20262710 AMAQI
9th Aug 20262911 AMAQI
9th Aug 20262512 PMAQI
9th Aug 2026251 PMAQI
9th Aug 2026272 PMAQI
9th Aug 2026293 PMAQI
9th Aug 2026254 PMAQI
9th Aug 2026255 PMAQI
9th Aug 2026296 PMAQI
9th Aug 2026297 PMAQI
9th Aug 2026258 PMAQI
9th Aug 2026299 PMAQI
9th Aug 20262910 PMAQI
9th Aug 20262911 PMAQI
10th Aug 20262512 AMAQI
10th Aug 2026251 AMAQI
10th Aug 2026252 AMAQI
10th Aug 2026253 AMAQI
10th Aug 2026254 AMAQI

24°C20/31°C

10th Aug 2026255 AMAQI
10th Aug 2026256 AMAQI
10th Aug 2026257 AMAQI
10th Aug 2026238 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20262510 AMAQI
10th Aug 20262511 AMAQI
10th Aug 20262512 PMAQI
10th Aug 2026251 PMAQI
10th Aug 2026272 PMAQI
10th Aug 2026293 PMAQI
10th Aug 2026274 PMAQI
10th Aug 2026295 PMAQI
10th Aug 2026256 PMAQI
10th Aug 2026277 PMAQI
10th Aug 2026278 PMAQI
10th Aug 2026259 PMAQI
10th Aug 20262510 PMAQI
10th Aug 20262511 PMAQI
11th Aug 20262512 AMAQI
11th Aug 2026251 AMAQI
11th Aug 2026232 AMAQI
11th Aug 2026253 AMAQI
11th Aug 2026294 AMAQI

23°C16/30°C

11th Aug 2026235 AMAQI
11th Aug 2026236 AMAQI
11th Aug 2026217 AMAQI
11th Aug 2026238 AMAQI
11th Aug 2026259 AMAQI
11th Aug 20262710 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262512 PMAQI
11th Aug 2026251 PMAQI
11th Aug 2026272 PMAQI
11th Aug 2026253 PMAQI
11th Aug 2026274 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026256 PMAQI
11th Aug 2026257 PMAQI
11th Aug 2026298 PMAQI
11th Aug 2026259 PMAQI
11th Aug 20262510 PMAQI
11th Aug 20262511 PMAQI
12th Aug 20262912 AMAQI
12th Aug 2026271 AMAQI
12th Aug 2026292 AMAQI
12th Aug 2026253 AMAQI
12th Aug 2026274 AMAQI

20°C14/26°C

12th Aug 2026255 AMAQI
12th Aug 2026256 AMAQI
12th Aug 2026257 AMAQI
12th Aug 2026278 AMAQI
12th Aug 2026239 AMAQI
12th Aug 20262510 AMAQI
12th Aug 20262311 AMAQI
12th Aug 20262712 PMAQI
12th Aug 2026271 PMAQI
12th Aug 2026212 PMAQI
12th Aug 2026253 PMAQI
12th Aug 2026274 PMAQI
12th Aug 2026255 PMAQI
12th Aug 2026236 PMAQI
12th Aug 2026237 PMAQI
12th Aug 2026298 PMAQI
12th Aug 2026259 PMAQI
12th Aug 20262510 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20262512 AMAQI
13th Aug 2026251 AMAQI
13th Aug 2026232 AMAQI
13th Aug 2026213 AMAQI
13th Aug 2026254 AMAQI

21°C16/27°C

13th Aug 2026255 AMAQI
13th Aug 2026236 AMAQI
13th Aug 2026257 AMAQI
13th Aug 2026278 AMAQI
13th Aug 2026299 AMAQI
13th Aug 20262710 AMAQI
13th Aug 20262511 AMAQI
13th Aug 20262912 PMAQI
13th Aug 2026331 PMAQI
13th Aug 2026332 PMAQI
13th Aug 2026383 PMAQI
13th Aug 2026314 PMAQI
13th Aug 2026295 PMAQI
13th Aug 2026296 PMAQI
13th Aug 2026337 PMAQI
13th Aug 2026238 PMAQI
13th Aug 2026239 PMAQI
13th Aug 20262510 PMAQI
13th Aug 20262511 PMAQI
14th Aug 20262712 AMAQI
14th Aug 2026271 AMAQI
14th Aug 2026252 AMAQI
14th Aug 2026293 AMAQI
14th Aug 2026314 AMAQI

21°C18/25°C

14th Aug 2026295 AMAQI
5 AM
14th Aug 2026316 AMAQI
14th Aug 2026317 AMAQI
14th Aug 2026298 AMAQI
14th Aug 2026319 AMAQI
14th Aug 20263810 AMAQI
14th Aug 20263611 AMAQI
14th Aug 20264212 PMAQI
12 PM
14th Aug 2026441 PMAQI
14th Aug 2026552 PMAQI
14th Aug 2026623 PMAQI
14th Aug 2026654 PMAQI
14th Aug 2026725 PMAQI
14th Aug 2026716 PMAQI
14th Aug 2026727 PMAQI
7 PM
14th Aug 2026608 PMAQI
14th Aug 2026559 PMAQI
14th Aug 20264610 PMAQI
14th Aug 20264011 PMAQI
12 AM
4 AM

22°C18/26°C

Day time
Avg. Highest Time
4 PM - 7 PM

39AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
5 AM

32AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 7 PM (Avg. 39), while the lowest AQI was between 5 AM to 5 AM (Avg. 32).
Night time
Avg. Highest Time
8 PM

40AQI

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

32AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 8 PM (Avg. 40), while the lowest AQI was between 2 AM to 4 AM (Avg. 32).

2026 Days Vs Air Quality

Nishigata, Niimi, Okayama, Japan

2026

77%

175

23%

51

Total number of days with different AQI categories in last 226 days in 2026 (139 days remaining)

Good
175 Days
Moderate
51 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 226 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

Nishigata, Niimi, Okayama, 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
17AQI (US)
3rd January 2026
18AQI (US)
4th January 2026
28AQI (US)
5th January 2026
32AQI (US)
6th January 2026
30AQI (US)
7th January 2026
31AQI (US)
8th January 2026
30AQI (US)
9th January 2026
21AQI (US)
10th January 2026
33AQI (US)
11th January 2026
29AQI (US)
12th January 2026
24AQI (US)
13th January 2026
28AQI (US)
14th January 2026
26AQI (US)
15th January 2026
34AQI (US)
16th January 2026
59AQI (US)
17th January 2026
66AQI (US)
18th January 2026
59AQI (US)
19th January 2026
56AQI (US)
20th January 2026
21AQI (US)
21st January 2026
14AQI (US)
22nd January 2026
26AQI (US)
23rd January 2026
51AQI (US)
24th January 2026
52AQI (US)
25th January 2026
43AQI (US)
26th January 2026
27AQI (US)
27th January 2026
49AQI (US)
28th January 2026
28AQI (US)
29th January 2026
17AQI (US)
30th January 2026
36AQI (US)
31st January 2026
31AQI (US)
1st February 2026
41AQI (US)
2nd February 2026
59AQI (US)
3rd February 2026
32AQI (US)
4th February 2026
49AQI (US)
5th February 2026
55AQI (US)
6th February 2026
34AQI (US)
7th February 2026
19AQI (US)
8th February 2026
11AQI (US)
9th February 2026
22AQI (US)
10th February 2026
56AQI (US)
11th February 2026
42AQI (US)
12th February 2026
48AQI (US)
13th February 2026
47AQI (US)
14th February 2026
72AQI (US)
15th February 2026
70AQI (US)
16th February 2026
44AQI (US)
17th February 2026
21AQI (US)
18th February 2026
31AQI (US)
19th February 2026
35AQI (US)
20th February 2026
40AQI (US)
21st February 2026
64AQI (US)
22nd February 2026
58AQI (US)
23rd February 2026
47AQI (US)
24th February 2026
43AQI (US)
25th February 2026
14AQI (US)
26th February 2026
12AQI (US)
27th February 2026
48AQI (US)
28th February 2026
19AQI (US)
1st March 2026
40AQI (US)
2nd March 2026
37AQI (US)
3rd March 2026
12AQI (US)
4th March 2026
51AQI (US)
5th March 2026
56AQI (US)
6th March 2026
54AQI (US)
7th March 2026
41AQI (US)
8th March 2026
29AQI (US)
9th March 2026
51AQI (US)
10th March 2026
59AQI (US)
11th March 2026
56AQI (US)
12th March 2026
67AQI (US)
13th March 2026
48AQI (US)
14th March 2026
46AQI (US)
15th March 2026
62AQI (US)
16th March 2026
64AQI (US)
17th March 2026
52AQI (US)
18th March 2026
67AQI (US)
19th March 2026
55AQI (US)
20th March 2026
40AQI (US)
21st March 2026
43AQI (US)
22nd March 2026
62AQI (US)
23rd March 2026
60AQI (US)
24th March 2026
61AQI (US)
25th March 2026
46AQI (US)
26th March 2026
17AQI (US)
27th March 2026
43AQI (US)
28th March 2026
61AQI (US)
29th March 2026
73AQI (US)
30th March 2026
78AQI (US)
31st March 2026
14AQI (US)
1st April 2026
10AQI (US)
2nd April 2026
51AQI (US)
3rd April 2026
52AQI (US)
4th April 2026
31AQI (US)
5th April 2026
18AQI (US)
6th April 2026
43AQI (US)
7th April 2026
34AQI (US)
8th April 2026
40AQI (US)
9th April 2026
30AQI (US)
10th April 2026
45AQI (US)
11th April 2026
36AQI (US)
12th April 2026
39AQI (US)
13th April 2026
38AQI (US)
14th April 2026
49AQI (US)
15th April 2026
26AQI (US)
16th April 2026
26AQI (US)
17th April 2026
46AQI (US)
18th April 2026
45AQI (US)
19th April 2026
34AQI (US)
20th April 2026
37AQI (US)
21st April 2026
41AQI (US)
22nd April 2026
48AQI (US)
23rd April 2026
32AQI (US)
24th April 2026
26AQI (US)
25th April 2026
45AQI (US)
26th April 2026
49AQI (US)
27th April 2026
49AQI (US)
28th April 2026
46AQI (US)
29th April 2026
40AQI (US)
30th April 2026
20AQI (US)
1st May 2026
47AQI (US)
2nd May 2026
53AQI (US)
3rd May 2026
49AQI (US)
4th May 2026
26AQI (US)
5th May 2026
23AQI (US)
6th May 2026
33AQI (US)
7th May 2026
42AQI (US)
8th May 2026
35AQI (US)
9th May 2026
27AQI (US)
10th May 2026
36AQI (US)
11th May 2026
31AQI (US)
12th May 2026
30AQI (US)
13th May 2026
27AQI (US)
14th May 2026
38AQI (US)
15th May 2026
34AQI (US)
16th May 2026
78AQI (US)
17th May 2026
63AQI (US)
18th May 2026
53AQI (US)
19th May 2026
46AQI (US)
20th May 2026
61AQI (US)
21st May 2026
64AQI (US)
22nd May 2026
69AQI (US)
23rd May 2026
62AQI (US)
24th May 2026
62AQI (US)
25th May 2026
54AQI (US)
26th May 2026
40AQI (US)
27th May 2026
16AQI (US)
28th May 2026
26AQI (US)
29th May 2026
26AQI (US)
30th May 2026
25AQI (US)
31st May 2026
38AQI (US)
1st June 2026
53AQI (US)
2nd June 2026
18AQI (US)
3rd June 2026
12AQI (US)
4th June 2026
25AQI (US)
5th June 2026
23AQI (US)
6th June 2026
27AQI (US)
7th June 2026
21AQI (US)
8th June 2026
21AQI (US)
9th June 2026
23AQI (US)
10th June 2026
21AQI (US)
11th June 2026
25AQI (US)
12th June 2026
25AQI (US)
13th June 2026
26AQI (US)
14th June 2026
24AQI (US)
15th June 2026
24AQI (US)
16th June 2026
28AQI (US)
17th June 2026
24AQI (US)
18th June 2026
26AQI (US)
19th June 2026
30AQI (US)
20th June 2026
24AQI (US)
21st June 2026
19AQI (US)
22nd June 2026
17AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
21AQI (US)
25th June 2026
26AQI (US)
26th June 2026
29AQI (US)
27th June 2026
27AQI (US)
28th June 2026
29AQI (US)
29th June 2026
46AQI (US)
30th June 2026
52AQI (US)
1st July 2026
55AQI (US)
2nd July 2026
9AQI (US)
3rd July 2026
22AQI (US)
4th July 2026
25AQI (US)
5th July 2026
22AQI (US)
6th July 2026
19AQI (US)
7th July 2026
29AQI (US)
8th July 2026
26AQI (US)
9th July 2026
26AQI (US)
10th July 2026
27AQI (US)
11th July 2026
29AQI (US)
12th July 2026
28AQI (US)
13th July 2026
28AQI (US)
14th July 2026
28AQI (US)
15th July 2026
26AQI (US)
16th July 2026
27AQI (US)
17th July 2026
33AQI (US)
18th July 2026
53AQI (US)
19th July 2026
62AQI (US)
20th July 2026
53AQI (US)
21st July 2026
66AQI (US)
22nd July 2026
58AQI (US)
23rd July 2026
39AQI (US)
24th July 2026
27AQI (US)
25th July 2026
35AQI (US)
26th July 2026
24AQI (US)
27th July 2026
29AQI (US)
28th July 2026
32AQI (US)
29th July 2026
31AQI (US)
30th July 2026
36AQI (US)
31st July 2026
26AQI (US)
1st August 2026
32AQI (US)
2nd August 2026
34AQI (US)
3rd August 2026
35AQI (US)
4th August 2026
35AQI (US)
5th August 2026
25AQI (US)
6th August 2026
24AQI (US)
7th August 2026
24AQI (US)
8th August 2026
26AQI (US)
9th August 2026
26AQI (US)
10th August 2026
26AQI (US)
11th August 2026
25AQI (US)
12th August 2026
26AQI (US)
13th August 2026
27AQI (US)
14th August 2026
44AQI (US)
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

34AQI (US)

40AQI (US)

50AQI (US)

38AQI (US)

42AQI (US)

26AQI (US)

33AQI (US)

29AQI (US)

No. of days

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

202637AQI (US)

25
6
21
7
13
18
28
2
21
10
28
2
25
6
14
175
51

Highest AQI (US) recorded in

March

50AQI (US)

Lowest AQI (US) recorded in

June

26AQI (US)

202543AQI (US)

27
4
26
2
22
9
22
8
22
9
15
15
16
14
1
25
6
30
17
14
19
11
24
7
265
99
1

Highest AQI (US) recorded in

July

54AQI (US)

Lowest AQI (US) recorded in

September

29AQI (US)

202433AQI (US)

19
12
26
3
28
3
24
6
28
3
23
7
31
30
1
29
1
31
28
2
31
328
38

Highest AQI (US) recorded in

April

43AQI (US)

Lowest AQI (US) recorded in

December

28AQI (US)

202335AQI (US)

27
3
28
22
9
20
10
24
7
23
7
27
4
31
29
1
31
24
5
24
6
310
52

Highest AQI (US) recorded in

April

46AQI (US)

Lowest AQI (US) recorded in

August

27AQI (US)

202234AQI (US)

30
1
20
1
23
8
22
8
21
10
24
6
23
2
3
28
1
30
1
28
2
31
283
40

Highest AQI (US) recorded in

May

44AQI (US)

Lowest AQI (US) recorded in

August

22AQI (US)

202130AQI (US)

27
3
24
4
27
2
20
1
28
3
22
8
31
27
4
29
1
30
1
30
31
326
27

Highest AQI (US) recorded in

June

40AQI (US)

Lowest AQI (US) recorded in

December

26AQI (US)

202029AQI (US)

11
2
20
1
18
25
5
29
2
18
13
19
30
1
28
2
30
1
228
27

Highest AQI (US) recorded in

August

46AQI (US)

Lowest AQI (US) recorded in

December

22AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
43AQI (US)
Least Polluted Year Recorded
2020(Avg.)
29AQI (US)

Nishigata's annual 2026 AQI (US) (37) shows an average percentage change of 10.6% (worsened AQI (US)) compared to previous years: 2020 (29), 2021 (30), 2022 (34), 2023 (35), 2024 (33), 2025 (43).