Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Okazaki, Aichi, 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

Okazaki, Aichi, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
15th Sep 2022
60AQI
Lowest AQI recorded on
10th Sep 2024
15AQI

Same Day Analysis (30th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 28 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.

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

Okazaki, Aichi, Japan

AQI
Day
Night
.

5 AM29th Sep 2026

5 PM

4 AM30th Sep 2026

Day time
Avg. Highest Time
11AM29th Sep

30AQI

Avg. Lowest Time
8AM29th Sep

22AQI

Night time
Avg. Highest Time
4AM30th Sep

29AQI

Avg. Lowest Time
8PM29th Sep

23AQI

In the last 24 hours,

Okazaki's AQI reached its highest point of 30 at 11 AM during the Day, while the lowest point, 22, was recorded at 8 AM during the Day between 29th Sep and 30th Sep 2026.

Day & Night AQI Trend : Sep 2026

Okazaki, Aichi, 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 2026475 AMAQI
1st Sep 2026446 AMAQI
1st Sep 2026287 AMAQI
1st Sep 2026348 AMAQI
1st Sep 2026289 AMAQI
1st Sep 20263610 AMAQI
1st Sep 20263511 AMAQI
1st Sep 20264312 PMAQI
1st Sep 2026441 PMAQI
1st Sep 2026502 PMAQI
1st Sep 2026363 PMAQI
1st Sep 2026324 PMAQI
1st Sep 2026305 PMAQI
1st Sep 2026276 PMAQI
1st Sep 2026327 PMAQI
1st Sep 2026368 PMAQI
1st Sep 2026309 PMAQI
1st Sep 20262410 PMAQI
1st Sep 20262711 PMAQI
2nd Sep 20262512 AMAQI
2nd Sep 2026251 AMAQI
2nd Sep 2026262 AMAQI
2nd Sep 2026233 AMAQI
2nd Sep 2026234 AMAQI

25°C23/29°C

2nd Sep 2026235 AMAQI
2nd Sep 2026236 AMAQI
2nd Sep 2026297 AMAQI
2nd Sep 2026308 AMAQI
2nd Sep 2026229 AMAQI
2nd Sep 20262210 AMAQI
2nd Sep 20262311 AMAQI
2nd Sep 20262512 PMAQI
2nd Sep 2026241 PMAQI
2nd Sep 2026302 PMAQI
2nd Sep 2026233 PMAQI
2nd Sep 2026274 PMAQI
2nd Sep 2026235 PMAQI
2nd Sep 2026216 PMAQI
2nd Sep 2026217 PMAQI
2nd Sep 2026198 PMAQI
2nd Sep 2026229 PMAQI
2nd Sep 20262410 PMAQI
2nd Sep 20262411 PMAQI
3rd Sep 20262412 AMAQI
3rd Sep 2026251 AMAQI
3rd Sep 2026232 AMAQI
3rd Sep 2026243 AMAQI
3rd Sep 2026274 AMAQI

27°C24/31°C

3rd Sep 2026245 AMAQI
3rd Sep 2026236 AMAQI
3rd Sep 2026227 AMAQI
3rd Sep 2026238 AMAQI
3rd Sep 2026259 AMAQI
3rd Sep 20262410 AMAQI
3rd Sep 20262411 AMAQI
3rd Sep 20262612 PMAQI
3rd Sep 2026231 PMAQI
3rd Sep 2026222 PMAQI
3rd Sep 2026233 PMAQI
3rd Sep 2026234 PMAQI
3rd Sep 2026265 PMAQI
3rd Sep 2026246 PMAQI
3rd Sep 2026227 PMAQI
3rd Sep 2026248 PMAQI
3rd Sep 2026259 PMAQI
3rd Sep 20263210 PMAQI
3rd Sep 20263111 PMAQI
4th Sep 20262912 AMAQI
4th Sep 2026261 AMAQI
4th Sep 2026252 AMAQI
4th Sep 2026253 AMAQI
4th Sep 2026254 AMAQI

24°C22/25°C

4th Sep 2026225 AMAQI
4th Sep 2026236 AMAQI
4th Sep 2026247 AMAQI
4th Sep 2026228 AMAQI
4th Sep 2026219 AMAQI
4th Sep 20263310 AMAQI
4th Sep 20263111 AMAQI
4th Sep 20262212 PMAQI
4th Sep 2026241 PMAQI
4th Sep 2026242 PMAQI
4th Sep 2026213 PMAQI
4th Sep 2026244 PMAQI
4th Sep 2026275 PMAQI
4th Sep 2026246 PMAQI
4th Sep 2026257 PMAQI
4th Sep 2026248 PMAQI
4th Sep 2026299 PMAQI
4th Sep 20262410 PMAQI
4th Sep 20262211 PMAQI
5th Sep 20262712 AMAQI
5th Sep 2026241 AMAQI
5th Sep 2026272 AMAQI
5th Sep 2026243 AMAQI
5th Sep 2026234 AMAQI

22°C20/23°C

5th Sep 2026245 AMAQI
5th Sep 2026246 AMAQI
5th Sep 2026217 AMAQI
5th Sep 2026248 AMAQI
5th Sep 2026219 AMAQI
5th Sep 20262210 AMAQI
5th Sep 20262811 AMAQI
5th Sep 20262412 PMAQI
5th Sep 2026241 PMAQI
5th Sep 2026212 PMAQI
5th Sep 2026243 PMAQI
5th Sep 2026234 PMAQI
5th Sep 2026255 PMAQI
5th Sep 2026246 PMAQI
5th Sep 2026287 PMAQI
5th Sep 2026258 PMAQI
5th Sep 2026219 PMAQI
5th Sep 20262210 PMAQI
5th Sep 20262311 PMAQI
6th Sep 20262412 AMAQI
6th Sep 2026231 AMAQI
6th Sep 2026232 AMAQI
6th Sep 2026253 AMAQI
6th Sep 2026244 AMAQI

22°C20/24°C

6th Sep 2026235 AMAQI
6th Sep 2026236 AMAQI
6th Sep 2026237 AMAQI
6th Sep 2026228 AMAQI
6th Sep 2026229 AMAQI
6th Sep 20262210 AMAQI
6th Sep 20262311 AMAQI
6th Sep 20262212 PMAQI
6th Sep 2026231 PMAQI
6th Sep 2026252 PMAQI
6th Sep 2026243 PMAQI
6th Sep 2026244 PMAQI
6th Sep 2026245 PMAQI
6th Sep 2026236 PMAQI
6th Sep 2026227 PMAQI
6th Sep 2026238 PMAQI
6th Sep 2026249 PMAQI
6th Sep 20262410 PMAQI
6th Sep 20262611 PMAQI
7th Sep 20262712 AMAQI
7th Sep 2026261 AMAQI
7th Sep 2026242 AMAQI
7th Sep 2026223 AMAQI
7th Sep 2026254 AMAQI

21°C20/24°C

7th Sep 2026255 AMAQI
7th Sep 2026286 AMAQI
7th Sep 2026247 AMAQI
7th Sep 2026248 AMAQI
7th Sep 2026259 AMAQI
7th Sep 20262510 AMAQI
7th Sep 20262611 AMAQI
7th Sep 20262112 PMAQI
7th Sep 2026221 PMAQI
7th Sep 2026232 PMAQI
7th Sep 2026243 PMAQI
7th Sep 2026234 PMAQI
7th Sep 2026215 PMAQI
7th Sep 2026226 PMAQI
7th Sep 2026237 PMAQI
7th Sep 2026258 PMAQI
7th Sep 2026249 PMAQI
7th Sep 20262410 PMAQI
7th Sep 20262411 PMAQI
8th Sep 20262412 AMAQI
8th Sep 2026211 AMAQI
8th Sep 2026252 AMAQI
8th Sep 2026223 AMAQI
8th Sep 2026214 AMAQI

22°C21/23°C

8th Sep 2026265 AMAQI
8th Sep 2026266 AMAQI
8th Sep 2026287 AMAQI
8th Sep 2026248 AMAQI
8th Sep 2026279 AMAQI
8th Sep 20262710 AMAQI
8th Sep 20262611 AMAQI
8th Sep 20262712 PMAQI
8th Sep 2026241 PMAQI
8th Sep 2026252 PMAQI
8th Sep 2026243 PMAQI
8th Sep 2026264 PMAQI
8th Sep 2026275 PMAQI
8th Sep 2026246 PMAQI
8th Sep 2026247 PMAQI
8th Sep 2026278 PMAQI
8th Sep 2026249 PMAQI
8th Sep 20263510 PMAQI
8th Sep 20263511 PMAQI
9th Sep 20262212 AMAQI
9th Sep 2026241 AMAQI
9th Sep 2026252 AMAQI
9th Sep 2026283 AMAQI
9th Sep 2026304 AMAQI

25°C23/28°C

9th Sep 2026395 AMAQI
9th Sep 2026266 AMAQI
9th Sep 2026317 AMAQI
9th Sep 2026278 AMAQI
9th Sep 2026239 AMAQI
9th Sep 20262310 AMAQI
9th Sep 20262411 AMAQI
9th Sep 20262512 PMAQI
9th Sep 2026271 PMAQI
9th Sep 2026262 PMAQI
9th Sep 2026243 PMAQI
9th Sep 2026254 PMAQI
9th Sep 2026235 PMAQI
9th Sep 2026236 PMAQI
9th Sep 2026297 PMAQI
9th Sep 2026348 PMAQI
9th Sep 2026299 PMAQI
9th Sep 20263110 PMAQI
9th Sep 20262611 PMAQI
10th Sep 20262512 AMAQI
10th Sep 2026231 AMAQI
10th Sep 2026252 AMAQI
10th Sep 2026263 AMAQI
10th Sep 2026274 AMAQI

24°C20/26°C

10th Sep 2026225 AMAQI
10th Sep 2026246 AMAQI
10th Sep 2026257 AMAQI
10th Sep 2026288 AMAQI
10th Sep 2026279 AMAQI
10th Sep 20262210 AMAQI
10th Sep 20262111 AMAQI
10th Sep 20262612 PMAQI
10th Sep 2026291 PMAQI
10th Sep 2026302 PMAQI
10th Sep 2026283 PMAQI
10th Sep 2026254 PMAQI
10th Sep 2026285 PMAQI
10th Sep 2026256 PMAQI
10th Sep 2026237 PMAQI
10th Sep 2026238 PMAQI
10th Sep 2026249 PMAQI
10th Sep 20262410 PMAQI
10th Sep 20262311 PMAQI
11th Sep 20262512 AMAQI
11th Sep 2026261 AMAQI
11th Sep 2026222 AMAQI
11th Sep 2026243 AMAQI
11th Sep 2026284 AMAQI

20°C20/22°C

11th Sep 2026265 AMAQI
11th Sep 2026246 AMAQI
11th Sep 2026237 AMAQI
11th Sep 2026238 AMAQI
11th Sep 2026269 AMAQI
11th Sep 20262510 AMAQI
11th Sep 20262211 AMAQI
11th Sep 20262112 PMAQI
11th Sep 2026221 PMAQI
11th Sep 2026222 PMAQI
11th Sep 2026223 PMAQI
11th Sep 2026214 PMAQI
11th Sep 2026225 PMAQI
11th Sep 2026266 PMAQI
11th Sep 2026257 PMAQI
11th Sep 2026268 PMAQI
11th Sep 2026259 PMAQI
11th Sep 20262510 PMAQI
11th Sep 20262511 PMAQI
12th Sep 20262512 AMAQI
12th Sep 2026251 AMAQI
12th Sep 2026262 AMAQI
12th Sep 2026263 AMAQI
12th Sep 2026294 AMAQI

21°C20/22°C

12th Sep 2026365 AMAQI
12th Sep 2026446 AMAQI
12th Sep 2026487 AMAQI
12th Sep 2026518 AMAQI
12th Sep 2026439 AMAQI
12th Sep 20263810 AMAQI
12th Sep 20263711 AMAQI
12th Sep 20263812 PMAQI
12th Sep 2026501 PMAQI
12th Sep 2026532 PMAQI
12th Sep 2026553 PMAQI
12th Sep 2026484 PMAQI
12th Sep 2026405 PMAQI
12th Sep 2026326 PMAQI
12th Sep 2026267 PMAQI
12th Sep 2026248 PMAQI
12th Sep 2026259 PMAQI
12th Sep 20262510 PMAQI
12th Sep 20262711 PMAQI
13th Sep 20262412 AMAQI
13th Sep 2026251 AMAQI
13th Sep 2026232 AMAQI
13th Sep 2026293 AMAQI
13th Sep 2026214 AMAQI

22°C22/24°C

13th Sep 2026246 AMAQI
13th Sep 2026257 AMAQI
13th Sep 2026258 AMAQI
13th Sep 2026259 AMAQI
13th Sep 20262510 AMAQI
13th Sep 20262511 AMAQI
13th Sep 20262512 PMAQI
13th Sep 2026231 PMAQI
13th Sep 2026212 PMAQI
13th Sep 2026223 PMAQI
13th Sep 2026244 PMAQI
13th Sep 2026295 PMAQI
13th Sep 2026286 PMAQI
13th Sep 2026247 PMAQI
13th Sep 2026228 PMAQI
13th Sep 2026249 PMAQI
13th Sep 20262210 PMAQI
13th Sep 20262111 PMAQI
14th Sep 20262312 AMAQI
14th Sep 2026221 AMAQI
14th Sep 2026222 AMAQI
14th Sep 2026253 AMAQI
14th Sep 2026244 AMAQI

25°C22/28°C

14th Sep 2026285 AMAQI
14th Sep 2026326 AMAQI
14th Sep 2026297 AMAQI
14th Sep 2026258 AMAQI
14th Sep 2026249 AMAQI
14th Sep 20262510 AMAQI
14th Sep 20262511 AMAQI
14th Sep 20262412 PMAQI
14th Sep 2026251 PMAQI
14th Sep 2026232 PMAQI
14th Sep 2026273 PMAQI
14th Sep 2026304 PMAQI
14th Sep 2026315 PMAQI
14th Sep 2026296 PMAQI
14th Sep 2026297 PMAQI
14th Sep 2026288 PMAQI
14th Sep 2026269 PMAQI
14th Sep 20263210 PMAQI
14th Sep 20262511 PMAQI
15th Sep 20262512 AMAQI
15th Sep 2026221 AMAQI
15th Sep 2026222 AMAQI
15th Sep 2026253 AMAQI
15th Sep 2026224 AMAQI

25°C23/28°C

15th Sep 2026215 AMAQI
15th Sep 2026216 AMAQI
15th Sep 2026297 AMAQI
15th Sep 2026268 AMAQI
15th Sep 2026349 AMAQI
15th Sep 20262110 AMAQI
15th Sep 20263211 AMAQI
15th Sep 20262712 PMAQI
15th Sep 2026221 PMAQI
15th Sep 2026252 PMAQI
15th Sep 2026223 PMAQI
15th Sep 2026284 PMAQI
15th Sep 2026225 PMAQI
15th Sep 2026346 PMAQI
15th Sep 2026257 PMAQI
15th Sep 2026238 PMAQI
15th Sep 2026299 PMAQI
15th Sep 20262210 PMAQI
15th Sep 20262211 PMAQI
16th Sep 20262412 AMAQI
16th Sep 2026241 AMAQI
16th Sep 2026252 AMAQI
16th Sep 2026213 AMAQI
16th Sep 2026224 AMAQI

23°C21/26°C

16th Sep 2026225 AMAQI
16th Sep 2026216 AMAQI
16th Sep 2026257 AMAQI
16th Sep 2026308 AMAQI
16th Sep 2026299 AMAQI
16th Sep 20262610 AMAQI
16th Sep 20262911 AMAQI
16th Sep 20262512 PMAQI
16th Sep 2026251 PMAQI
16th Sep 2026252 PMAQI
16th Sep 2026253 PMAQI
16th Sep 2026254 PMAQI
16th Sep 2026255 PMAQI
16th Sep 2026306 PMAQI
16th Sep 2026277 PMAQI
16th Sep 2026268 PMAQI
16th Sep 2026289 PMAQI
16th Sep 20262410 PMAQI
16th Sep 20262411 PMAQI
17th Sep 20262112 AMAQI
17th Sep 2026231 AMAQI
17th Sep 2026212 AMAQI
17th Sep 2026243 AMAQI
17th Sep 2026244 AMAQI

22°C21/23°C

17th Sep 2026275 AMAQI
17th Sep 2026246 AMAQI
17th Sep 2026257 AMAQI
17th Sep 2026218 AMAQI
17th Sep 2026219 AMAQI
17th Sep 20262510 AMAQI
17th Sep 20262411 AMAQI
17th Sep 20262412 PMAQI
17th Sep 2026251 PMAQI
17th Sep 2026222 PMAQI
17th Sep 2026223 PMAQI
17th Sep 2026264 PMAQI
17th Sep 2026405 PMAQI
17th Sep 2026256 PMAQI
17th Sep 2026237 PMAQI
17th Sep 2026228 PMAQI
17th Sep 2026249 PMAQI
17th Sep 20262210 PMAQI
17th Sep 20262511 PMAQI
18th Sep 20262412 AMAQI
18th Sep 2026231 AMAQI
18th Sep 2026252 AMAQI
18th Sep 2026243 AMAQI
18th Sep 2026244 AMAQI

22°C20/25°C

18th Sep 2026215 AMAQI
18th Sep 2026226 AMAQI
18th Sep 2026247 AMAQI
18th Sep 2026258 AMAQI
18th Sep 2026279 AMAQI
18th Sep 20262710 AMAQI
18th Sep 20263211 AMAQI
18th Sep 20262812 PMAQI
18th Sep 2026331 PMAQI
18th Sep 2026302 PMAQI
18th Sep 2026413 PMAQI
18th Sep 2026454 PMAQI
18th Sep 2026505 PMAQI
18th Sep 2026446 PMAQI
18th Sep 2026447 PMAQI
18th Sep 2026588 PMAQI
18th Sep 2026299 PMAQI
18th Sep 20263110 PMAQI
18th Sep 20264611 PMAQI
19th Sep 20264212 AMAQI
19th Sep 2026521 AMAQI
19th Sep 2026432 AMAQI
19th Sep 2026473 AMAQI
19th Sep 2026564 AMAQI

23°C20/26°C

19th Sep 2026585 AMAQI
19th Sep 2026616 AMAQI
19th Sep 2026527 AMAQI
19th Sep 2026608 AMAQI
19th Sep 2026629 AMAQI
19th Sep 20265210 AMAQI
19th Sep 20265611 AMAQI
19th Sep 20265412 PMAQI
19th Sep 2026471 PMAQI
19th Sep 2026592 PMAQI
19th Sep 2026503 PMAQI
19th Sep 2026554 PMAQI
19th Sep 2026545 PMAQI
19th Sep 2026596 PMAQI
19th Sep 2026537 PMAQI
19th Sep 2026548 PMAQI
19th Sep 2026559 PMAQI
19th Sep 20265210 PMAQI
19th Sep 20264811 PMAQI
20th Sep 20265612 AMAQI
20th Sep 2026481 AMAQI
20th Sep 2026532 AMAQI
20th Sep 2026463 AMAQI
20th Sep 2026404 AMAQI

24°C21/28°C

20th Sep 2026335 AMAQI
20th Sep 2026486 AMAQI
20th Sep 2026497 AMAQI
20th Sep 2026508 AMAQI
20th Sep 2026409 AMAQI
20th Sep 20264310 AMAQI
20th Sep 20264111 AMAQI
20th Sep 20263712 PMAQI
20th Sep 2026351 PMAQI
20th Sep 2026352 PMAQI
20th Sep 2026403 PMAQI
20th Sep 2026274 PMAQI
20th Sep 2026355 PMAQI
20th Sep 2026366 PMAQI
20th Sep 2026237 PMAQI
20th Sep 2026268 PMAQI
20th Sep 2026209 PMAQI
20th Sep 20262010 PMAQI
20th Sep 20262211 PMAQI
21st Sep 20262312 AMAQI
21st Sep 2026221 AMAQI
21st Sep 2026212 AMAQI
21st Sep 2026223 AMAQI
21st Sep 2026214 AMAQI

23°C22/26°C

21st Sep 2026235 AMAQI
21st Sep 2026256 AMAQI
21st Sep 2026227 AMAQI
21st Sep 2026238 AMAQI
21st Sep 2026209 AMAQI
21st Sep 20261710 AMAQI
21st Sep 20262011 AMAQI
21st Sep 20262312 PMAQI
21st Sep 2026161 PMAQI
21st Sep 2026172 PMAQI
21st Sep 2026193 PMAQI
21st Sep 2026194 PMAQI
21st Sep 2026195 PMAQI
21st Sep 2026226 PMAQI
21st Sep 2026227 PMAQI
21st Sep 2026168 PMAQI
21st Sep 2026229 PMAQI
21st Sep 20262410 PMAQI
21st Sep 20262411 PMAQI
22nd Sep 20262312 AMAQI
22nd Sep 2026221 AMAQI
22nd Sep 2026392 AMAQI
22nd Sep 2026513 AMAQI
22nd Sep 2026484 AMAQI

24°C22/26°C

22nd Sep 2026485 AMAQI
22nd Sep 2026266 AMAQI
22nd Sep 2026287 AMAQI
22nd Sep 2026268 AMAQI
22nd Sep 2026259 AMAQI
22nd Sep 20262810 AMAQI
22nd Sep 20262511 AMAQI
22nd Sep 20262512 PMAQI
22nd Sep 2026221 PMAQI
22nd Sep 2026232 PMAQI
22nd Sep 2026223 PMAQI
22nd Sep 2026254 PMAQI
22nd Sep 2026285 PMAQI
22nd Sep 2026256 PMAQI
22nd Sep 2026257 PMAQI
22nd Sep 2026248 PMAQI
22nd Sep 2026279 PMAQI
22nd Sep 20262810 PMAQI
22nd Sep 20262711 PMAQI
23rd Sep 20262812 AMAQI
23rd Sep 2026571 AMAQI
23rd Sep 2026482 AMAQI
23rd Sep 2026213 AMAQI
23rd Sep 2026304 AMAQI

24°C21/29°C

23rd Sep 2026495 AMAQI
23rd Sep 2026456 AMAQI
23rd Sep 2026297 AMAQI
23rd Sep 2026228 AMAQI
23rd Sep 2026279 AMAQI
23rd Sep 20263410 AMAQI
23rd Sep 20262711 AMAQI
23rd Sep 20262712 PMAQI
23rd Sep 2026251 PMAQI
23rd Sep 2026262 PMAQI
23rd Sep 2026263 PMAQI
23rd Sep 2026234 PMAQI
23rd Sep 2026215 PMAQI
23rd Sep 2026236 PMAQI
23rd Sep 2026447 PMAQI
23rd Sep 2026508 PMAQI
23rd Sep 2026509 PMAQI
23rd Sep 20264910 PMAQI
23rd Sep 20263711 PMAQI
24th Sep 20262812 AMAQI
24th Sep 2026221 AMAQI
24th Sep 2026282 AMAQI
24th Sep 2026323 AMAQI
24th Sep 2026244 AMAQI

23°C21/27°C

24th Sep 2026215 AMAQI
24th Sep 2026246 AMAQI
24th Sep 2026237 AMAQI
24th Sep 2026208 AMAQI
24th Sep 2026229 AMAQI
24th Sep 20262210 AMAQI
24th Sep 20262611 AMAQI
24th Sep 20262212 PMAQI
24th Sep 2026221 PMAQI
24th Sep 2026282 PMAQI
24th Sep 2026313 PMAQI
24th Sep 2026424 PMAQI
24th Sep 2026565 PMAQI
24th Sep 2026426 PMAQI
24th Sep 2026397 PMAQI
24th Sep 2026548 PMAQI
24th Sep 2026429 PMAQI
24th Sep 20263810 PMAQI
24th Sep 20262911 PMAQI
25th Sep 20263212 AMAQI
25th Sep 2026321 AMAQI
25th Sep 2026322 AMAQI
25th Sep 2026313 AMAQI
25th Sep 2026324 AMAQI

23°C20/28°C

25th Sep 2026325 AMAQI
25th Sep 2026326 AMAQI
25th Sep 2026327 AMAQI
25th Sep 2026328 AMAQI
25th Sep 2026329 AMAQI
25th Sep 20263110 AMAQI
25th Sep 20263211 AMAQI
25th Sep 20263212 PMAQI
25th Sep 2026371 PMAQI
25th Sep 2026362 PMAQI
25th Sep 2026373 PMAQI
25th Sep 2026364 PMAQI
25th Sep 2026495 PMAQI
25th Sep 2026406 PMAQI
25th Sep 2026487 PMAQI
25th Sep 2026418 PMAQI
25th Sep 2026399 PMAQI
25th Sep 20264110 PMAQI
25th Sep 20264211 PMAQI
26th Sep 20264112 AMAQI
26th Sep 2026431 AMAQI
26th Sep 2026412 AMAQI
26th Sep 2026453 AMAQI
26th Sep 2026604 AMAQI

22°C20/25°C

26th Sep 2026625 AMAQI
26th Sep 2026476 AMAQI
26th Sep 2026527 AMAQI
26th Sep 2026538 AMAQI
26th Sep 2026589 AMAQI
26th Sep 20265110 AMAQI
26th Sep 20266611 AMAQI
26th Sep 20264612 PMAQI
26th Sep 2026381 PMAQI
26th Sep 2026362 PMAQI
26th Sep 2026263 PMAQI
26th Sep 2026344 PMAQI
26th Sep 2026435 PMAQI
26th Sep 2026396 PMAQI
26th Sep 2026457 PMAQI
26th Sep 2026278 PMAQI
26th Sep 2026329 PMAQI
26th Sep 20263610 PMAQI
26th Sep 20264511 PMAQI
27th Sep 20263312 AMAQI
27th Sep 2026401 AMAQI
27th Sep 2026392 AMAQI
27th Sep 2026323 AMAQI
27th Sep 2026304 AMAQI

20°C19/22°C

27th Sep 2026225 AMAQI
27th Sep 2026246 AMAQI
27th Sep 2026207 AMAQI
27th Sep 2026298 AMAQI
27th Sep 2026269 AMAQI
27th Sep 20262510 AMAQI
27th Sep 20263011 AMAQI
27th Sep 20263012 PMAQI
27th Sep 2026241 PMAQI
27th Sep 2026222 PMAQI
27th Sep 2026213 PMAQI
27th Sep 2026284 PMAQI
27th Sep 2026355 PMAQI
27th Sep 2026276 PMAQI
27th Sep 2026227 PMAQI
27th Sep 2026288 PMAQI
27th Sep 2026279 PMAQI
27th Sep 20263010 PMAQI
27th Sep 20262411 PMAQI
28th Sep 20263112 AMAQI
28th Sep 2026231 AMAQI
28th Sep 2026302 AMAQI
28th Sep 2026223 AMAQI
28th Sep 2026204 AMAQI

20°C19/21°C

28th Sep 2026235 AMAQI
28th Sep 2026246 AMAQI
28th Sep 2026247 AMAQI
28th Sep 2026238 AMAQI
28th Sep 2026239 AMAQI
28th Sep 20262210 AMAQI
28th Sep 20262111 AMAQI
28th Sep 20262112 PMAQI
28th Sep 2026241 PMAQI
28th Sep 2026252 PMAQI
28th Sep 2026243 PMAQI
28th Sep 2026284 PMAQI
28th Sep 2026245 PMAQI
28th Sep 2026236 PMAQI
28th Sep 2026227 PMAQI
28th Sep 2026238 PMAQI
28th Sep 2026239 PMAQI
28th Sep 20262210 PMAQI
28th Sep 20262211 PMAQI
29th Sep 20262412 AMAQI
29th Sep 2026261 AMAQI
29th Sep 2026232 AMAQI
29th Sep 2026223 AMAQI
29th Sep 2026234 AMAQI

21°C20/23°C

29th Sep 2026235 AMAQI
29th Sep 2026246 AMAQI
29th Sep 2026277 AMAQI
29th Sep 2026228 AMAQI
29th Sep 2026299 AMAQI
29th Sep 20262710 AMAQI
29th Sep 20263011 AMAQI
29th Sep 20262512 PMAQI
29th Sep 2026251 PMAQI
29th Sep 2026252 PMAQI
29th Sep 2026233 PMAQI
29th Sep 2026244 PMAQI
29th Sep 2026235 PMAQI
29th Sep 2026236 PMAQI
29th Sep 2026237 PMAQI
29th Sep 2026238 PMAQI
29th Sep 2026259 PMAQI
29th Sep 20262410 PMAQI
29th Sep 20262511 PMAQI
30th Sep 20262412 AMAQI
30th Sep 2026241 AMAQI
30th Sep 2026262 AMAQI
30th Sep 2026273 AMAQI
30th Sep 2026294 AMAQI

17°C16/19°C

30th Sep 2026285 AMAQI
5 AM
30th Sep 2026276 AMAQI
30th Sep 2026307 AMAQI
30th Sep 2026288 AMAQI
30th Sep 2026289 AMAQI
30th Sep 20262710 AMAQI
30th Sep 20262711 AMAQI
11 AM
30th Sep 20262912 PMAQI
30th Sep 2026281 PMAQI
30th Sep 2026262 PMAQI
30th Sep 2026253 PMAQI
30th Sep 2026364 PMAQI
30th Sep 2026245 PMAQI
5 PM
30th Sep 2026376 PMAQI
30th Sep 2026267 PMAQI
30th Sep 2026278 PMAQI
30th Sep 2026319 PMAQI
30th Sep 20262810 PMAQI
30th Sep 20262811 PMAQI
11 PM
4 AM

20°C17/24°C

Day time
Avg. Highest Time
5 PM

31AQI

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

28AQI

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. 31), while the lowest AQI was between 10 AM to 10 AM (Avg. 28).
Night time
Avg. Highest Time
2 AM

29AQI

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

28AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 2 AM (Avg. 29), while the lowest AQI was between 12 AM to 1 AM (Avg. 28).

2026 Days Vs Air Quality

Okazaki, Aichi, Japan

2026

87%

238

13%

35

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

Good
238 Days
Moderate
35 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 87%

Health Risk Level:

Low

In 2026, 87% 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

Okazaki, Aichi, 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
22AQI (US)
2nd January 2026
18AQI (US)
3rd January 2026
16AQI (US)
4th January 2026
26AQI (US)
5th January 2026
46AQI (US)
6th January 2026
15AQI (US)
7th January 2026
26AQI (US)
8th January 2026
34AQI (US)
9th January 2026
20AQI (US)
10th January 2026
26AQI (US)
11th January 2026
28AQI (US)
12th January 2026
21AQI (US)
13th January 2026
39AQI (US)
14th January 2026
26AQI (US)
15th January 2026
40AQI (US)
16th January 2026
58AQI (US)
17th January 2026
51AQI (US)
18th January 2026
56AQI (US)
19th January 2026
60AQI (US)
20th January 2026
31AQI (US)
21st January 2026
14AQI (US)
22nd January 2026
23AQI (US)
23rd January 2026
37AQI (US)
24th January 2026
44AQI (US)
25th January 2026
44AQI (US)
26th January 2026
22AQI (US)
27th January 2026
22AQI (US)
28th January 2026
25AQI (US)
29th January 2026
26AQI (US)
30th January 2026
36AQI (US)
31st January 2026
32AQI (US)
1st February 2026
34AQI (US)
2nd February 2026
24AQI (US)
3rd February 2026
28AQI (US)
4th February 2026
34AQI (US)
5th February 2026
44AQI (US)
6th February 2026
42AQI (US)
7th February 2026
16AQI (US)
8th February 2026
18AQI (US)
9th February 2026
34AQI (US)
10th February 2026
38AQI (US)
11th February 2026
42AQI (US)
12th February 2026
47AQI (US)
13th February 2026
46AQI (US)
14th February 2026
48AQI (US)
15th February 2026
44AQI (US)
16th February 2026
51AQI (US)
17th February 2026
22AQI (US)
18th February 2026
26AQI (US)
19th February 2026
32AQI (US)
20th February 2026
28AQI (US)
21st February 2026
48AQI (US)
22nd February 2026
43AQI (US)
23rd February 2026
50AQI (US)
24th February 2026
48AQI (US)
25th February 2026
24AQI (US)
26th February 2026
26AQI (US)
27th February 2026
47AQI (US)
28th February 2026
42AQI (US)
1st March 2026
34AQI (US)
2nd March 2026
70AQI (US)
3rd March 2026
41AQI (US)
4th March 2026
54AQI (US)
5th March 2026
52AQI (US)
6th March 2026
50AQI (US)
7th March 2026
46AQI (US)
8th March 2026
41AQI (US)
9th March 2026
48AQI (US)
10th March 2026
58AQI (US)
11th March 2026
55AQI (US)
12th March 2026
62AQI (US)
13th March 2026
41AQI (US)
14th March 2026
46AQI (US)
15th March 2026
58AQI (US)
16th March 2026
54AQI (US)
17th March 2026
51AQI (US)
18th March 2026
53AQI (US)
19th March 2026
36AQI (US)
20th March 2026
45AQI (US)
21st March 2026
41AQI (US)
22nd March 2026
49AQI (US)
23rd March 2026
46AQI (US)
24th March 2026
48AQI (US)
25th March 2026
58AQI (US)
26th March 2026
24AQI (US)
27th March 2026
35AQI (US)
28th March 2026
56AQI (US)
29th March 2026
50AQI (US)
30th March 2026
36AQI (US)
31st March 2026
22AQI (US)
1st April 2026
25AQI (US)
2nd April 2026
39AQI (US)
3rd April 2026
48AQI (US)
4th April 2026
45AQI (US)
5th April 2026
37AQI (US)
6th April 2026
32AQI (US)
7th April 2026
35AQI (US)
8th April 2026
24AQI (US)
9th April 2026
29AQI (US)
10th April 2026
46AQI (US)
11th April 2026
36AQI (US)
12th April 2026
31AQI (US)
13th April 2026
35AQI (US)
14th April 2026
42AQI (US)
15th April 2026
24AQI (US)
16th April 2026
29AQI (US)
17th April 2026
38AQI (US)
18th April 2026
28AQI (US)
19th April 2026
32AQI (US)
20th April 2026
36AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
46AQI (US)
23rd April 2026
33AQI (US)
24th April 2026
20AQI (US)
25th April 2026
39AQI (US)
26th April 2026
50AQI (US)
27th April 2026
49AQI (US)
28th April 2026
45AQI (US)
29th April 2026
40AQI (US)
30th April 2026
34AQI (US)
1st May 2026
40AQI (US)
2nd May 2026
52AQI (US)
3rd May 2026
42AQI (US)
4th May 2026
27AQI (US)
5th May 2026
18AQI (US)
6th May 2026
29AQI (US)
7th May 2026
31AQI (US)
8th May 2026
26AQI (US)
9th May 2026
26AQI (US)
10th May 2026
27AQI (US)
11th May 2026
28AQI (US)
12th May 2026
31AQI (US)
13th May 2026
39AQI (US)
14th May 2026
34AQI (US)
15th May 2026
37AQI (US)
16th May 2026
85AQI (US)
17th May 2026
68AQI (US)
18th May 2026
53AQI (US)
19th May 2026
48AQI (US)
20th May 2026
62AQI (US)
21st May 2026
60AQI (US)
22nd May 2026
62AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
59AQI (US)
25th May 2026
48AQI (US)
26th May 2026
39AQI (US)
27th May 2026
24AQI (US)
28th May 2026
25AQI (US)
29th May 2026
24AQI (US)
30th May 2026
24AQI (US)
31st May 2026
27AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
16AQI (US)
3rd June 2026
25AQI (US)
4th June 2026
24AQI (US)
5th June 2026
22AQI (US)
6th June 2026
25AQI (US)
7th June 2026
22AQI (US)
8th June 2026
20AQI (US)
9th June 2026
22AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
30AQI (US)
13th June 2026
38AQI (US)
14th June 2026
28AQI (US)
15th June 2026
21AQI (US)
16th June 2026
26AQI (US)
17th June 2026
24AQI (US)
18th June 2026
26AQI (US)
19th June 2026
30AQI (US)
20th June 2026
22AQI (US)
21st June 2026
22AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
22AQI (US)
25th June 2026
26AQI (US)
26th June 2026
29AQI (US)
27th June 2026
23AQI (US)
28th June 2026
28AQI (US)
29th June 2026
32AQI (US)
30th June 2026
58AQI (US)
1st July 2026
43AQI (US)
2nd July 2026
19AQI (US)
3rd July 2026
22AQI (US)
4th July 2026
24AQI (US)
5th July 2026
20AQI (US)
6th July 2026
20AQI (US)
7th July 2026
23AQI (US)
8th July 2026
25AQI (US)
9th July 2026
25AQI (US)
10th July 2026
27AQI (US)
11th July 2026
23AQI (US)
12th July 2026
26AQI (US)
13th July 2026
28AQI (US)
14th July 2026
27AQI (US)
15th July 2026
38AQI (US)
16th July 2026
52AQI (US)
17th July 2026
58AQI (US)
18th July 2026
46AQI (US)
19th July 2026
20AQI (US)
20th July 2026
30AQI (US)
21st July 2026
57AQI (US)
22nd July 2026
76AQI (US)
23rd July 2026
55AQI (US)
24th July 2026
61AQI (US)
25th July 2026
55AQI (US)
26th July 2026
43AQI (US)
27th July 2026
30AQI (US)
28th July 2026
31AQI (US)
29th July 2026
25AQI (US)
30th July 2026
46AQI (US)
31st July 2026
40AQI (US)
1st August 2026
40AQI (US)
2nd August 2026
50AQI (US)
3rd August 2026
48AQI (US)
4th August 2026
31AQI (US)
5th August 2026
35AQI (US)
6th August 2026
26AQI (US)
7th August 2026
23AQI (US)
8th August 2026
22AQI (US)
9th August 2026
24AQI (US)
10th August 2026
27AQI (US)
11th August 2026
27AQI (US)
12th August 2026
23AQI (US)
13th August 2026
26AQI (US)
14th August 2026
26AQI (US)
15th August 2026
24AQI (US)
16th August 2026
23AQI (US)
17th August 2026
24AQI (US)
18th August 2026
24AQI (US)
19th August 2026
24AQI (US)
20th August 2026
24AQI (US)
21st August 2026
27AQI (US)
22nd August 2026
32AQI (US)
23rd August 2026
29AQI (US)
24th August 2026
30AQI (US)
25th August 2026
34AQI (US)
26th August 2026
33AQI (US)
27th August 2026
25AQI (US)
28th August 2026
24AQI (US)
29th August 2026
28AQI (US)
30th August 2026
37AQI (US)
31st August 2026
40AQI (US)
1st September 2026
34AQI (US)
2nd September 2026
24AQI (US)
3rd September 2026
24AQI (US)
4th September 2026
25AQI (US)
5th September 2026
24AQI (US)
6th September 2026
23AQI (US)
7th September 2026
24AQI (US)
8th September 2026
26AQI (US)
9th September 2026
27AQI (US)
10th September 2026
25AQI (US)
11th September 2026
24AQI (US)
12th September 2026
36AQI (US)
13th September 2026
24AQI (US)
14th September 2026
26AQI (US)
15th September 2026
25AQI (US)
16th September 2026
25AQI (US)
17th September 2026
24AQI (US)
18th September 2026
32AQI (US)
19th September 2026
53AQI (US)
20th September 2026
38AQI (US)
21st September 2026
21AQI (US)
22nd September 2026
29AQI (US)
23rd September 2026
34AQI (US)
24th September 2026
31AQI (US)
25th September 2026
36AQI (US)
26th September 2026
44AQI (US)
27th September 2026
28AQI (US)
28th September 2026
24AQI (US)
29th September 2026
24AQI (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

32AQI (US)

37AQI (US)

47AQI (US)

36AQI (US)

40AQI (US)

26AQI (US)

36AQI (US)

29AQI (US)

29AQI (US)

No. of days

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

202635AQI (US)

27
4
27
1
19
12
30
22
9
29
1
24
7
31
29
1
238
35

Highest AQI (US) recorded in

March

47AQI (US)

Lowest AQI (US) recorded in

June

26AQI (US)

202534AQI (US)

31
28
29
2
30
31
30
20
11
21
10
29
1
17
14
21
9
25
6
312
53

Highest AQI (US) recorded in

October

49AQI (US)

Lowest AQI (US) recorded in

May

20AQI (US)

202436AQI (US)

28
1
27
2
25
6
19
11
29
2
26
4
28
3
25
6
26
4
28
3
26
4
31
318
46

Highest AQI (US) recorded in

April

49AQI (US)

Lowest AQI (US) recorded in

December

24AQI (US)

202339AQI (US)

28
3
26
2
24
7
16
14
26
5
22
8
21
10
29
2
27
3
27
1
24
5
27
4
297
64

Highest AQI (US) recorded in

April

50AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202238AQI (US)

30
20
2
21
10
17
11
20
11
25
5
19
4
2
23
5
26
3
27
3
31
261
54

Highest AQI (US) recorded in

May

46AQI (US)

Lowest AQI (US) recorded in

August

19AQI (US)

202137AQI (US)

28
3
23
5
27
4
20
3
28
3
24
6
29
2
29
2
25
5
28
1
26
4
30
1
317
39

Highest AQI (US) recorded in

June

43AQI (US)

Lowest AQI (US) recorded in

December

32AQI (US)

202037AQI (US)

12
1
18
3
16
2
21
9
29
2
18
13
13
27
2
26
4
29
2
209
38

Highest AQI (US) recorded in

August

49AQI (US)

Lowest AQI (US) recorded in

September

24AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
39AQI (US)
Least Polluted Year Recorded
2025(Avg.)
34AQI (US)

Okazaki's annual 2026 AQI (US) (35) shows an average percentage change of -4.7% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (37), 2022 (38), 2023 (39), 2024 (36), 2025 (34).