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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Nakano, Aizawa, Kanagawa, 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

Nakano, Aizawa, Kanagawa, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
20th Aug 2023
66AQI
Lowest AQI recorded on
30th Aug 2024
15AQI

Same Day Analysis (17th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Day & Night AQI Trend: 16th Aug - 17th Aug 2026

Nakano, Aizawa, Kanagawa, Japan

AQI
Day
Night
.

4 AM16th Aug 2026

6 PM

3 AM17th Aug 2026

Day time
Avg. Highest Time
10AM16th Aug

27AQI

Avg. Lowest Time
3PM16th Aug

21AQI

Night time
Avg. Highest Time
4AM16th Aug

25AQI

Avg. Lowest Time
8PM16th Aug

21AQI

In the last 24 hours,

Nakano's AQI reached its highest point of 27 at 10 AM during the Day, while the lowest point, 21, was recorded at 8 PM during the Night between 16th Aug and 17th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Nakano, Aizawa, Kanagawa, Japan

JulAug
19th - 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 - 15th15th - 16th16th - 17th17th
Day
Night
19th Jul 2026194 AMAQI
19th Jul 2026195 AMAQI
19th Jul 2026106 AMAQI
19th Jul 2026127 AMAQI
19th Jul 2026178 AMAQI
19th Jul 2026189 AMAQI
19th Jul 20262410 AMAQI
19th Jul 20262311 AMAQI
19th Jul 20261712 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026272 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026237 PMAQI
19th Jul 2026298 PMAQI
19th Jul 2026279 PMAQI
19th Jul 20262110 PMAQI
19th Jul 20262111 PMAQI
20th Jul 20262112 AMAQI
20th Jul 2026211 AMAQI
20th Jul 2026212 AMAQI
20th Jul 2026213 AMAQI

27°C24/30°C

20th Jul 2026214 AMAQI
20th Jul 2026235 AMAQI
20th Jul 2026236 AMAQI
20th Jul 2026277 AMAQI
20th Jul 2026278 AMAQI
20th Jul 2026319 AMAQI
20th Jul 20263110 AMAQI
20th Jul 20263611 AMAQI
20th Jul 20262912 PMAQI
20th Jul 2026361 PMAQI
20th Jul 2026332 PMAQI
20th Jul 2026363 PMAQI
20th Jul 2026404 PMAQI
20th Jul 2026385 PMAQI
20th Jul 2026316 PMAQI
20th Jul 2026387 PMAQI
20th Jul 2026388 PMAQI
20th Jul 2026369 PMAQI
20th Jul 20264010 PMAQI
20th Jul 20264211 PMAQI
21st Jul 20263812 AMAQI
21st Jul 2026421 AMAQI
21st Jul 2026462 AMAQI
21st Jul 2026443 AMAQI

29°C25/35°C

21st Jul 2026484 AMAQI
21st Jul 2026525 AMAQI
21st Jul 2026576 AMAQI
21st Jul 2026607 AMAQI
21st Jul 2026608 AMAQI
21st Jul 2026609 AMAQI
21st Jul 20265910 AMAQI
21st Jul 20265811 AMAQI
21st Jul 2026591 PMAQI
21st Jul 2026592 PMAQI
21st Jul 2026603 PMAQI
21st Jul 2026634 PMAQI
21st Jul 2026635 PMAQI
21st Jul 2026626 PMAQI
21st Jul 2026997 PMAQI
21st Jul 2026648 PMAQI
21st Jul 2026579 PMAQI
21st Jul 20265810 PMAQI
21st Jul 20265711 PMAQI
22nd Jul 20266512 AMAQI
22nd Jul 2026641 AMAQI
22nd Jul 2026652 AMAQI
22nd Jul 2026583 AMAQI

30°C26/35°C

22nd Jul 2026584 AMAQI
22nd Jul 2026645 AMAQI
22nd Jul 2026646 AMAQI
22nd Jul 2026627 AMAQI
22nd Jul 2026678 AMAQI
22nd Jul 2026639 AMAQI
22nd Jul 20266610 AMAQI
22nd Jul 20267211 AMAQI
22nd Jul 20267212 PMAQI
22nd Jul 2026741 PMAQI
22nd Jul 2026742 PMAQI
22nd Jul 2026803 PMAQI
22nd Jul 2026864 PMAQI
22nd Jul 2026805 PMAQI
22nd Jul 2026826 PMAQI
22nd Jul 2026767 PMAQI
22nd Jul 2026738 PMAQI
22nd Jul 2026619 PMAQI
22nd Jul 20265010 PMAQI
22nd Jul 20264211 PMAQI
23rd Jul 20265812 AMAQI
23rd Jul 2026401 AMAQI
23rd Jul 2026522 AMAQI
23rd Jul 2026513 AMAQI

30°C26/35°C

23rd Jul 2026454 AMAQI
23rd Jul 2026625 AMAQI
23rd Jul 2026766 AMAQI
23rd Jul 2026757 AMAQI
23rd Jul 2026808 AMAQI
23rd Jul 2026819 AMAQI
23rd Jul 20269210 AMAQI
23rd Jul 20269611 AMAQI
23rd Jul 20266812 PMAQI
23rd Jul 2026621 PMAQI
23rd Jul 2026622 PMAQI
23rd Jul 2026243 PMAQI
23rd Jul 2026484 PMAQI
23rd Jul 2026535 PMAQI
23rd Jul 2026446 PMAQI
23rd Jul 2026467 PMAQI
23rd Jul 2026588 PMAQI
23rd Jul 2026669 PMAQI
23rd Jul 20267310 PMAQI
23rd Jul 20266811 PMAQI
24th Jul 20267512 AMAQI
24th Jul 2026641 AMAQI
24th Jul 2026762 AMAQI
24th Jul 2026483 AMAQI

30°C26/36°C

24th Jul 2026674 AMAQI
24th Jul 2026665 AMAQI
24th Jul 2026626 AMAQI
24th Jul 2026597 AMAQI
24th Jul 2026528 AMAQI
24th Jul 2026339 AMAQI
24th Jul 20262910 AMAQI
24th Jul 20263811 AMAQI
24th Jul 20265812 PMAQI
24th Jul 2026711 PMAQI
24th Jul 2026732 PMAQI
24th Jul 2026723 PMAQI
24th Jul 2026684 PMAQI
24th Jul 2026325 PMAQI
24th Jul 2026406 PMAQI
24th Jul 2026567 PMAQI
24th Jul 2026648 PMAQI
24th Jul 2026559 PMAQI
24th Jul 20265710 PMAQI
24th Jul 20265311 PMAQI
25th Jul 20265612 AMAQI
25th Jul 2026581 AMAQI
25th Jul 2026552 AMAQI
25th Jul 2026553 AMAQI

28°C26/31°C

25th Jul 2026514 AMAQI
25th Jul 2026445 AMAQI
25th Jul 2026536 AMAQI
25th Jul 2026407 AMAQI
25th Jul 2026578 AMAQI
25th Jul 2026599 AMAQI
25th Jul 20266010 AMAQI
25th Jul 20268211 AMAQI
25th Jul 20267312 PMAQI
25th Jul 2026651 PMAQI
25th Jul 2026422 PMAQI
25th Jul 2026513 PMAQI
25th Jul 2026544 PMAQI
25th Jul 2026645 PMAQI
25th Jul 2026786 PMAQI
25th Jul 2026807 PMAQI
25th Jul 2026718 PMAQI
25th Jul 2026729 PMAQI
25th Jul 20267310 PMAQI
25th Jul 20266911 PMAQI
26th Jul 20264012 AMAQI
26th Jul 202681 AMAQI
26th Jul 2026172 AMAQI
26th Jul 202693 AMAQI

28°C25/33°C

26th Jul 2026174 AMAQI
26th Jul 2026425 AMAQI
26th Jul 2026236 AMAQI
26th Jul 2026177 AMAQI
26th Jul 2026278 AMAQI
26th Jul 2026279 AMAQI
26th Jul 20263310 AMAQI
26th Jul 20263311 AMAQI
26th Jul 20262712 PMAQI
26th Jul 2026481 PMAQI
26th Jul 2026252 PMAQI
26th Jul 2026143 PMAQI
26th Jul 2026124 PMAQI
26th Jul 2026125 PMAQI
26th Jul 2026216 PMAQI
26th Jul 2026197 PMAQI
26th Jul 2026128 PMAQI
26th Jul 2026199 PMAQI
26th Jul 20261210 PMAQI
26th Jul 20261411 PMAQI
27th Jul 20261912 AMAQI
27th Jul 2026121 AMAQI
27th Jul 2026122 AMAQI
27th Jul 2026123 AMAQI

26°C24/29°C

27th Jul 2026104 AMAQI
27th Jul 2026145 AMAQI
27th Jul 2026336 AMAQI
27th Jul 2026217 AMAQI
27th Jul 2026298 AMAQI
27th Jul 2026339 AMAQI
27th Jul 20264010 AMAQI
27th Jul 20262711 AMAQI
27th Jul 20263612 PMAQI
27th Jul 2026291 PMAQI
27th Jul 2026422 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026175 PMAQI
27th Jul 2026146 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026258 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262911 PMAQI
28th Jul 20262912 AMAQI
28th Jul 2026311 AMAQI
28th Jul 2026272 AMAQI
28th Jul 2026293 AMAQI

25°C22/29°C

28th Jul 2026274 AMAQI
28th Jul 2026275 AMAQI
28th Jul 2026276 AMAQI
28th Jul 2026297 AMAQI
28th Jul 2026278 AMAQI
28th Jul 2026279 AMAQI
28th Jul 20263310 AMAQI
28th Jul 20263811 AMAQI
28th Jul 20264012 PMAQI
28th Jul 2026361 PMAQI
28th Jul 2026382 PMAQI
28th Jul 2026383 PMAQI
28th Jul 2026314 PMAQI
28th Jul 2026295 PMAQI
28th Jul 2026336 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026318 PMAQI
28th Jul 2026319 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20263311 PMAQI
29th Jul 20262912 AMAQI
29th Jul 2026291 AMAQI
29th Jul 2026272 AMAQI
29th Jul 2026253 AMAQI

25°C23/29°C

29th Jul 2026274 AMAQI
29th Jul 2026255 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026279 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20262511 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026231 PMAQI
29th Jul 2026232 PMAQI
29th Jul 2026233 PMAQI
29th Jul 2026254 PMAQI
29th Jul 2026255 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262510 PMAQI
29th Jul 20262511 PMAQI
30th Jul 20262312 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026252 AMAQI
30th Jul 2026253 AMAQI

27°C21/33°C

30th Jul 2026234 AMAQI
30th Jul 2026235 AMAQI
30th Jul 2026236 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026278 AMAQI
30th Jul 2026259 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262511 AMAQI
30th Jul 20262912 PMAQI
30th Jul 2026361 PMAQI
30th Jul 2026332 PMAQI
30th Jul 2026333 PMAQI
30th Jul 2026364 PMAQI
30th Jul 2026425 PMAQI
30th Jul 2026426 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026428 PMAQI
30th Jul 2026449 PMAQI
30th Jul 20262410 PMAQI
30th Jul 20263211 PMAQI
31st Jul 20265912 AMAQI
31st Jul 2026621 AMAQI
31st Jul 2026622 AMAQI
31st Jul 2026623 AMAQI

28°C24/34°C

31st Jul 2026604 AMAQI
31st Jul 2026625 AMAQI
31st Jul 2026626 AMAQI
31st Jul 2026627 AMAQI
31st Jul 2026628 AMAQI
31st Jul 2026599 AMAQI
31st Jul 20265910 AMAQI
31st Jul 20266211 AMAQI
31st Jul 20265712 PMAQI
31st Jul 2026591 PMAQI
31st Jul 2026572 PMAQI
31st Jul 2026573 PMAQI
31st Jul 2026574 PMAQI
31st Jul 2026645 PMAQI
31st Jul 2026576 PMAQI
31st Jul 2026627 PMAQI
31st Jul 2026638 PMAQI
31st Jul 2026629 PMAQI
31st Jul 20266510 PMAQI
31st Jul 20266511 PMAQI
1st Aug 20267012 AMAQI
1st Aug 2026591 AMAQI
1st Aug 2026692 AMAQI
1st Aug 2026553 AMAQI

28°C24/33°C

1st Aug 2026524 AMAQI
1st Aug 2026535 AMAQI
1st Aug 2026576 AMAQI
1st Aug 2026607 AMAQI
1st Aug 2026648 AMAQI
1st Aug 2026659 AMAQI
1st Aug 20266510 AMAQI
1st Aug 20266811 AMAQI
1st Aug 20267012 PMAQI
1st Aug 2026661 PMAQI
1st Aug 2026672 PMAQI
1st Aug 2026673 PMAQI
1st Aug 2026664 PMAQI
1st Aug 2026705 PMAQI
1st Aug 2026696 PMAQI
1st Aug 2026727 PMAQI
1st Aug 2026748 PMAQI
1st Aug 2026729 PMAQI
1st Aug 20266910 PMAQI
1st Aug 20267511 PMAQI
2nd Aug 20267512 AMAQI
2nd Aug 2026761 AMAQI
2nd Aug 2026682 AMAQI
2nd Aug 2026443 AMAQI

29°C25/34°C

2nd Aug 2026534 AMAQI
2nd Aug 2026555 AMAQI
2nd Aug 2026556 AMAQI
2nd Aug 2026547 AMAQI
2nd Aug 2026578 AMAQI
2nd Aug 2026549 AMAQI
2nd Aug 20265710 AMAQI
2nd Aug 20265411 AMAQI
2nd Aug 20265412 PMAQI
2nd Aug 2026521 PMAQI
2nd Aug 2026532 PMAQI
2nd Aug 2026523 PMAQI
2nd Aug 2026544 PMAQI
2nd Aug 2026545 PMAQI
2nd Aug 2026536 PMAQI
2nd Aug 2026537 PMAQI
2nd Aug 2026518 PMAQI
2nd Aug 2026389 PMAQI
2nd Aug 20262110 PMAQI
2nd Aug 20262111 PMAQI
3rd Aug 20262512 AMAQI
3rd Aug 2026211 AMAQI
3rd Aug 2026172 AMAQI
3rd Aug 202683 AMAQI

29°C24/35°C

3rd Aug 2026124 AMAQI
3rd Aug 2026175 AMAQI
3rd Aug 2026196 AMAQI
3rd Aug 202687 AMAQI
3rd Aug 202668 AMAQI
3rd Aug 202689 AMAQI
3rd Aug 2026810 AMAQI
3rd Aug 2026911 AMAQI
3rd Aug 20261212 PMAQI
3rd Aug 2026191 PMAQI
3rd Aug 2026122 PMAQI
3rd Aug 2026123 PMAQI
3rd Aug 2026124 PMAQI
3rd Aug 2026145 PMAQI
3rd Aug 2026136 PMAQI
3rd Aug 2026147 PMAQI
3rd Aug 2026198 PMAQI
3rd Aug 2026299 PMAQI
3rd Aug 20263110 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20262912 AMAQI
4th Aug 2026121 AMAQI
4th Aug 202682 AMAQI
4th Aug 2026123 AMAQI

23°C22/25°C

4th Aug 2026234 AMAQI
4th Aug 2026235 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026217 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262311 AMAQI
4th Aug 20262312 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026292 PMAQI
4th Aug 2026333 PMAQI
4th Aug 2026334 PMAQI
4th Aug 2026315 PMAQI
4th Aug 2026366 PMAQI
4th Aug 2026367 PMAQI
4th Aug 2026348 PMAQI
4th Aug 2026299 PMAQI
4th Aug 20262710 PMAQI
4th Aug 20263111 PMAQI
5th Aug 20263312 AMAQI
5th Aug 2026331 AMAQI
5th Aug 2026292 AMAQI
5th Aug 2026293 AMAQI

24°C20/29°C

5th Aug 2026334 AMAQI
5th Aug 2026315 AMAQI
5th Aug 2026296 AMAQI
5th Aug 2026297 AMAQI
5th Aug 2026338 AMAQI
5th Aug 2026299 AMAQI
5th Aug 20263110 AMAQI
5th Aug 20262911 AMAQI
5th Aug 20262912 PMAQI
5th Aug 2026291 PMAQI
5th Aug 2026292 PMAQI
5th Aug 2026313 PMAQI
5th Aug 2026294 PMAQI
5th Aug 2026335 PMAQI
5th Aug 2026296 PMAQI
5th Aug 2026337 PMAQI
5th Aug 2026388 PMAQI
5th Aug 2026409 PMAQI
5th Aug 20263610 PMAQI
5th Aug 20263611 PMAQI
6th Aug 20264012 AMAQI
6th Aug 2026421 AMAQI
6th Aug 2026382 AMAQI
6th Aug 2026363 AMAQI

25°C20/30°C

6th Aug 2026364 AMAQI
6th Aug 2026385 AMAQI
6th Aug 2026406 AMAQI
6th Aug 2026367 AMAQI
6th Aug 2026338 AMAQI
6th Aug 2026339 AMAQI
6th Aug 20263610 AMAQI
6th Aug 20263611 AMAQI
6th Aug 20263612 PMAQI
6th Aug 2026331 PMAQI
6th Aug 2026332 PMAQI
6th Aug 2026293 PMAQI
6th Aug 2026294 PMAQI
6th Aug 2026295 PMAQI
6th Aug 2026316 PMAQI
6th Aug 2026297 PMAQI
6th Aug 2026278 PMAQI
6th Aug 2026239 PMAQI
6th Aug 20262310 PMAQI
6th Aug 20262511 PMAQI
7th Aug 20262512 AMAQI
7th Aug 2026251 AMAQI
7th Aug 2026252 AMAQI
7th Aug 2026253 AMAQI

28°C25/32°C

7th Aug 2026274 AMAQI
7th Aug 2026235 AMAQI
7th Aug 2026256 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026258 AMAQI
7th Aug 2026299 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20262511 AMAQI
7th Aug 20262512 PMAQI
7th Aug 2026311 PMAQI
7th Aug 2026252 PMAQI
7th Aug 2026213 PMAQI
7th Aug 2026214 PMAQI
7th Aug 2026215 PMAQI
7th Aug 2026216 PMAQI
7th Aug 2026217 PMAQI
7th Aug 2026218 PMAQI
7th Aug 2026219 PMAQI
7th Aug 20262110 PMAQI
7th Aug 20262311 PMAQI
8th Aug 20262112 AMAQI
8th Aug 2026211 AMAQI
8th Aug 2026212 AMAQI
8th Aug 2026213 AMAQI

27°C23/32°C

8th Aug 2026234 AMAQI
8th Aug 2026235 AMAQI
8th Aug 2026216 AMAQI
8th Aug 2026217 AMAQI
8th Aug 2026278 AMAQI
8th Aug 2026319 AMAQI
8th Aug 20262110 AMAQI
8th Aug 20262111 AMAQI
8th Aug 20262312 PMAQI
8th Aug 2026211 PMAQI
8th Aug 2026252 PMAQI
8th Aug 2026213 PMAQI
8th Aug 2026214 PMAQI
8th Aug 2026215 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026237 PMAQI
8th Aug 2026258 PMAQI
8th Aug 2026259 PMAQI
8th Aug 20263310 PMAQI
8th Aug 20262511 PMAQI
9th Aug 20263112 AMAQI
9th Aug 2026301 AMAQI
9th Aug 2026232 AMAQI
9th Aug 2026233 AMAQI

27°C24/31°C

9th Aug 2026234 AMAQI
9th Aug 2026255 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026258 AMAQI
9th Aug 2026299 AMAQI
9th Aug 20262910 AMAQI
9th Aug 20262911 AMAQI
9th Aug 20262912 PMAQI
9th Aug 2026291 PMAQI
9th Aug 2026292 PMAQI
9th Aug 2026273 PMAQI
9th Aug 2026214 PMAQI
9th Aug 2026215 PMAQI
9th Aug 2026256 PMAQI
9th Aug 2026297 PMAQI
9th Aug 2026298 PMAQI
9th Aug 2026319 PMAQI
9th Aug 20263110 PMAQI
9th Aug 20262711 PMAQI
10th Aug 20262512 AMAQI
10th Aug 2026231 AMAQI
10th Aug 2026232 AMAQI
10th Aug 2026213 AMAQI

27°C23/32°C

10th Aug 2026234 AMAQI
10th Aug 2026235 AMAQI
10th Aug 2026236 AMAQI
10th Aug 2026217 AMAQI
10th Aug 2026218 AMAQI
10th Aug 2026239 AMAQI
10th Aug 20262510 AMAQI
10th Aug 20262111 AMAQI
10th Aug 20262312 PMAQI
10th Aug 2026251 PMAQI
10th Aug 2026252 PMAQI
10th Aug 2026213 PMAQI
10th Aug 2026254 PMAQI
10th Aug 2026235 PMAQI
10th Aug 2026216 PMAQI
10th Aug 2026217 PMAQI
10th Aug 2026218 PMAQI
10th Aug 2026259 PMAQI
10th Aug 20262510 PMAQI
10th Aug 20262311 PMAQI
11th Aug 20262312 AMAQI
11th Aug 2026251 AMAQI
11th Aug 2026272 AMAQI
11th Aug 2026253 AMAQI

26°C23/29°C

11th Aug 2026254 AMAQI
11th Aug 2026295 AMAQI
11th Aug 2026296 AMAQI
11th Aug 2026337 AMAQI
11th Aug 2026338 AMAQI
11th Aug 2026319 AMAQI
11th Aug 20262910 AMAQI
11th Aug 20262911 AMAQI
11th Aug 20263112 PMAQI
11th Aug 2026291 PMAQI
11th Aug 2026272 PMAQI
11th Aug 2026273 PMAQI
11th Aug 2026254 PMAQI
11th Aug 2026275 PMAQI
11th Aug 2026276 PMAQI
11th Aug 2026297 PMAQI
11th Aug 2026278 PMAQI
11th Aug 2026239 PMAQI
11th Aug 20262110 PMAQI
11th Aug 20262311 PMAQI
12th Aug 20262112 AMAQI
12th Aug 2026211 AMAQI
12th Aug 2026212 AMAQI
12th Aug 2026233 AMAQI

23°C21/27°C

12th Aug 2026234 AMAQI
12th Aug 2026235 AMAQI
12th Aug 2026256 AMAQI
12th Aug 2026237 AMAQI
12th Aug 2026218 AMAQI
12th Aug 2026239 AMAQI
12th Aug 20262110 AMAQI
12th Aug 20262311 AMAQI
12th Aug 20262112 PMAQI
12th Aug 2026231 PMAQI
12th Aug 2026212 PMAQI
12th Aug 2026233 PMAQI
12th Aug 2026214 PMAQI
12th Aug 2026215 PMAQI
12th Aug 2026256 PMAQI
12th Aug 2026257 PMAQI
12th Aug 2026258 PMAQI
12th Aug 2026239 PMAQI
12th Aug 20262310 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20262312 AMAQI
13th Aug 2026211 AMAQI
13th Aug 2026232 AMAQI
13th Aug 2026213 AMAQI

22°C21/23°C

13th Aug 2026214 AMAQI
13th Aug 2026215 AMAQI
13th Aug 2026236 AMAQI
13th Aug 2026237 AMAQI
13th Aug 2026238 AMAQI
13th Aug 2026259 AMAQI
13th Aug 20262510 AMAQI
13th Aug 20262311 AMAQI
13th Aug 20262512 PMAQI
13th Aug 2026211 PMAQI
13th Aug 2026252 PMAQI
13th Aug 2026233 PMAQI
13th Aug 2026234 PMAQI
13th Aug 2026215 PMAQI
13th Aug 2026216 PMAQI
13th Aug 2026217 PMAQI
13th Aug 2026198 PMAQI
13th Aug 2026219 PMAQI
13th Aug 20262110 PMAQI
13th Aug 20262311 PMAQI
14th Aug 20262112 AMAQI
14th Aug 2026121 AMAQI
14th Aug 2026212 AMAQI
14th Aug 2026143 AMAQI

24°C21/28°C

14th Aug 2026144 AMAQI
14th Aug 2026195 AMAQI
14th Aug 2026216 AMAQI
14th Aug 2026127 AMAQI
14th Aug 2026168 AMAQI
14th Aug 2026199 AMAQI
14th Aug 20261710 AMAQI
14th Aug 20262111 AMAQI
14th Aug 20262312 PMAQI
14th Aug 2026251 PMAQI
14th Aug 2026212 PMAQI
14th Aug 2026143 PMAQI
14th Aug 2026174 PMAQI
14th Aug 2026145 PMAQI
14th Aug 2026196 PMAQI
14th Aug 2026277 PMAQI
14th Aug 2026258 PMAQI
14th Aug 2026299 PMAQI
14th Aug 20262710 PMAQI
14th Aug 20262911 PMAQI
15th Aug 20262512 AMAQI
15th Aug 2026231 AMAQI
15th Aug 2026252 AMAQI
15th Aug 2026233 AMAQI

25°C22/28°C

15th Aug 2026254 AMAQI
15th Aug 2026275 AMAQI
15th Aug 2026276 AMAQI
15th Aug 2026257 AMAQI
15th Aug 2026258 AMAQI
15th Aug 2026259 AMAQI
15th Aug 20262510 AMAQI
15th Aug 20262911 AMAQI
15th Aug 20262912 PMAQI
15th Aug 2026291 PMAQI
15th Aug 2026232 PMAQI
15th Aug 2026213 PMAQI
15th Aug 2026234 PMAQI
15th Aug 2026215 PMAQI
15th Aug 2026306 PMAQI
15th Aug 2026237 PMAQI
15th Aug 2026258 PMAQI
15th Aug 2026219 PMAQI
15th Aug 20262110 PMAQI
15th Aug 20262111 PMAQI
16th Aug 20262312 AMAQI
16th Aug 2026251 AMAQI
16th Aug 2026252 AMAQI
16th Aug 2026253 AMAQI

25°C22/29°C

16th Aug 2026254 AMAQI
16th Aug 2026255 AMAQI
16th Aug 2026256 AMAQI
16th Aug 2026257 AMAQI
16th Aug 2026258 AMAQI
16th Aug 2026259 AMAQI
16th Aug 20262710 AMAQI
16th Aug 20262311 AMAQI
16th Aug 20262112 PMAQI
16th Aug 2026231 PMAQI
16th Aug 2026212 PMAQI
16th Aug 2026213 PMAQI
16th Aug 2026254 PMAQI
16th Aug 2026235 PMAQI
16th Aug 2026236 PMAQI
16th Aug 2026217 PMAQI
16th Aug 2026218 PMAQI
16th Aug 2026239 PMAQI
16th Aug 20262510 PMAQI
16th Aug 20262511 PMAQI
17th Aug 20262512 AMAQI
17th Aug 2026251 AMAQI
17th Aug 2026252 AMAQI
17th Aug 2026253 AMAQI

25°C22/28°C

17th Aug 2026254 AMAQI
4 AM
17th Aug 2026255 AMAQI
17th Aug 2026256 AMAQI
17th Aug 2026237 AMAQI
17th Aug 2026258 AMAQI
17th Aug 2026219 AMAQI
17th Aug 20262910 AMAQI
17th Aug 20262911 AMAQI
11 AM
17th Aug 20262512 PMAQI
17th Aug 2026211 PMAQI
17th Aug 2026212 PMAQI
17th Aug 2026213 PMAQI
17th Aug 2026214 PMAQI
17th Aug 2026235 PMAQI
17th Aug 2026256 PMAQI
6 PM
17th Aug 2026257 PMAQI
17th Aug 2026258 PMAQI
17th Aug 2026259 PMAQI
17th Aug 20262510 PMAQI
17th Aug 20262311 PMAQI
11 PM
3 AM

12°C11/16°C

Day time
Avg. Highest Time
10 AM - 2 PM

36AQI

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

31AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 2 PM (Avg. 36), while the lowest AQI was between 4 AM to 4 AM (Avg. 31).
Night time
Avg. Highest Time
7 PM - 9 PM

37AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM

29AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 9 PM (Avg. 37), while the lowest AQI was between 3 AM to 3 AM (Avg. 29).

2026 Days Vs Air Quality

Nakano, Aizawa, Kanagawa, Japan

2026

83%

190

17%

39

Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)

Good
190 Days
Moderate
39 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 83%

Health Risk Level:

Low

In 2026, 83% of 229 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

Nakano, Aizawa, Kanagawa, 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
31AQI (US)
2nd January 2026
22AQI (US)
3rd January 2026
14AQI (US)
4th January 2026
16AQI (US)
5th January 2026
19AQI (US)
6th January 2026
24AQI (US)
7th January 2026
20AQI (US)
8th January 2026
21AQI (US)
9th January 2026
17AQI (US)
10th January 2026
21AQI (US)
11th January 2026
25AQI (US)
12th January 2026
15AQI (US)
13th January 2026
24AQI (US)
14th January 2026
19AQI (US)
15th January 2026
34AQI (US)
16th January 2026
41AQI (US)
17th January 2026
52AQI (US)
18th January 2026
42AQI (US)
19th January 2026
39AQI (US)
20th January 2026
32AQI (US)
21st January 2026
18AQI (US)
22nd January 2026
28AQI (US)
23rd January 2026
51AQI (US)
24th January 2026
50AQI (US)
25th January 2026
42AQI (US)
26th January 2026
26AQI (US)
27th January 2026
42AQI (US)
28th January 2026
28AQI (US)
29th January 2026
24AQI (US)
30th January 2026
36AQI (US)
31st January 2026
34AQI (US)
1st February 2026
40AQI (US)
2nd February 2026
55AQI (US)
3rd February 2026
31AQI (US)
4th February 2026
45AQI (US)
5th February 2026
49AQI (US)
6th February 2026
42AQI (US)
7th February 2026
16AQI (US)
8th February 2026
19AQI (US)
9th February 2026
40AQI (US)
10th February 2026
45AQI (US)
11th February 2026
48AQI (US)
12th February 2026
34AQI (US)
13th February 2026
50AQI (US)
14th February 2026
61AQI (US)
15th February 2026
58AQI (US)
16th February 2026
42AQI (US)
17th February 2026
19AQI (US)
18th February 2026
31AQI (US)
19th February 2026
30AQI (US)
20th February 2026
27AQI (US)
21st February 2026
46AQI (US)
22nd February 2026
42AQI (US)
23rd February 2026
41AQI (US)
24th February 2026
36AQI (US)
25th February 2026
31AQI (US)
26th February 2026
9AQI (US)
27th February 2026
30AQI (US)
28th February 2026
48AQI (US)
1st March 2026
50AQI (US)
2nd March 2026
81AQI (US)
3rd March 2026
48AQI (US)
4th March 2026
44AQI (US)
5th March 2026
58AQI (US)
6th March 2026
52AQI (US)
7th March 2026
49AQI (US)
8th March 2026
35AQI (US)
9th March 2026
44AQI (US)
10th March 2026
58AQI (US)
11th March 2026
58AQI (US)
12th March 2026
71AQI (US)
13th March 2026
45AQI (US)
14th March 2026
36AQI (US)
15th March 2026
16AQI (US)
16th March 2026
31AQI (US)
17th March 2026
54AQI (US)
18th March 2026
57AQI (US)
19th March 2026
39AQI (US)
20th March 2026
34AQI (US)
21st March 2026
44AQI (US)
22nd March 2026
54AQI (US)
23rd March 2026
52AQI (US)
24th March 2026
48AQI (US)
25th March 2026
65AQI (US)
26th March 2026
21AQI (US)
27th March 2026
19AQI (US)
28th March 2026
52AQI (US)
29th March 2026
53AQI (US)
30th March 2026
55AQI (US)
31st March 2026
23AQI (US)
1st April 2026
22AQI (US)
2nd April 2026
36AQI (US)
3rd April 2026
45AQI (US)
4th April 2026
45AQI (US)
5th April 2026
37AQI (US)
6th April 2026
29AQI (US)
7th April 2026
33AQI (US)
8th April 2026
22AQI (US)
9th April 2026
31AQI (US)
10th April 2026
45AQI (US)
11th April 2026
36AQI (US)
12th April 2026
36AQI (US)
13th April 2026
38AQI (US)
14th April 2026
48AQI (US)
15th April 2026
41AQI (US)
16th April 2026
35AQI (US)
17th April 2026
39AQI (US)
18th April 2026
33AQI (US)
19th April 2026
39AQI (US)
20th April 2026
39AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
46AQI (US)
23rd April 2026
36AQI (US)
24th April 2026
32AQI (US)
25th April 2026
45AQI (US)
26th April 2026
52AQI (US)
27th April 2026
48AQI (US)
28th April 2026
42AQI (US)
29th April 2026
39AQI (US)
30th April 2026
37AQI (US)
1st May 2026
47AQI (US)
2nd May 2026
49AQI (US)
3rd May 2026
42AQI (US)
4th May 2026
28AQI (US)
5th May 2026
22AQI (US)
6th May 2026
33AQI (US)
7th May 2026
35AQI (US)
8th May 2026
28AQI (US)
9th May 2026
27AQI (US)
10th May 2026
34AQI (US)
11th May 2026
36AQI (US)
12th May 2026
41AQI (US)
13th May 2026
44AQI (US)
14th May 2026
42AQI (US)
15th May 2026
41AQI (US)
16th May 2026
86AQI (US)
17th May 2026
68AQI (US)
18th May 2026
54AQI (US)
19th May 2026
49AQI (US)
20th May 2026
62AQI (US)
21st May 2026
58AQI (US)
22nd May 2026
60AQI (US)
23rd May 2026
53AQI (US)
24th May 2026
58AQI (US)
25th May 2026
47AQI (US)
26th May 2026
39AQI (US)
27th May 2026
26AQI (US)
28th May 2026
25AQI (US)
29th May 2026
25AQI (US)
30th May 2026
24AQI (US)
31st May 2026
27AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
34AQI (US)
3rd June 2026
13AQI (US)
4th June 2026
23AQI (US)
5th June 2026
22AQI (US)
6th June 2026
24AQI (US)
7th June 2026
22AQI (US)
8th June 2026
20AQI (US)
9th June 2026
20AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
25AQI (US)
13th June 2026
26AQI (US)
14th June 2026
33AQI (US)
15th June 2026
12AQI (US)
16th June 2026
18AQI (US)
17th June 2026
23AQI (US)
18th June 2026
25AQI (US)
19th June 2026
44AQI (US)
20th June 2026
24AQI (US)
21st June 2026
13AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
21AQI (US)
25th June 2026
23AQI (US)
26th June 2026
28AQI (US)
27th June 2026
26AQI (US)
28th June 2026
28AQI (US)
29th June 2026
28AQI (US)
30th June 2026
36AQI (US)
1st July 2026
58AQI (US)
2nd July 2026
20AQI (US)
3rd July 2026
17AQI (US)
4th July 2026
45AQI (US)
5th July 2026
15AQI (US)
6th July 2026
31AQI (US)
7th July 2026
26AQI (US)
8th July 2026
25AQI (US)
9th July 2026
25AQI (US)
10th July 2026
24AQI (US)
11th July 2026
28AQI (US)
12th July 2026
28AQI (US)
13th July 2026
32AQI (US)
14th July 2026
29AQI (US)
15th July 2026
42AQI (US)
16th July 2026
76AQI (US)
17th July 2026
63AQI (US)
18th July 2026
29AQI (US)
19th July 2026
20AQI (US)
20th July 2026
31AQI (US)
21st July 2026
58AQI (US)
22nd July 2026
67AQI (US)
23rd July 2026
62AQI (US)
24th July 2026
57AQI (US)
25th July 2026
61AQI (US)
26th July 2026
22AQI (US)
27th July 2026
24AQI (US)
28th July 2026
31AQI (US)
29th July 2026
25AQI (US)
30th July 2026
30AQI (US)
31st July 2026
61AQI (US)
1st August 2026
66AQI (US)
2nd August 2026
52AQI (US)
3rd August 2026
15AQI (US)
4th August 2026
25AQI (US)
5th August 2026
32AQI (US)
6th August 2026
33AQI (US)
7th August 2026
24AQI (US)
8th August 2026
23AQI (US)
9th August 2026
27AQI (US)
10th August 2026
23AQI (US)
11th August 2026
27AQI (US)
12th August 2026
23AQI (US)
13th August 2026
22AQI (US)
14th August 2026
20AQI (US)
15th August 2026
25AQI (US)
16th August 2026
24AQI (US)
17th August 2026
24AQI (US)
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

29AQI (US)

38AQI (US)

47AQI (US)

38AQI (US)

42AQI (US)

24AQI (US)

37AQI (US)

29AQI (US)

No. of days

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

202636AQI (US)

29
2
25
3
17
14
29
1
23
8
30
22
9
15
2
190
39

Highest AQI (US) recorded in

March

47AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202533AQI (US)

31
28
29
2
30
30
1
30
22
9
21
10
29
1
16
15
27
3
28
3
321
44

Highest AQI (US) recorded in

July

47AQI (US)

Lowest AQI (US) recorded in

April

21AQI (US)

202433AQI (US)

31
29
28
3
18
12
29
2
29
1
21
10
18
13
27
3
31
30
31
322
44

Highest AQI (US) recorded in

April

47AQI (US)

Lowest AQI (US) recorded in

December

24AQI (US)

202337AQI (US)

31
27
1
29
2
23
7
26
5
22
8
20
11
28
3
26
4
30
1
25
4
30
1
317
47

Highest AQI (US) recorded in

July

47AQI (US)

Lowest AQI (US) recorded in

January

26AQI (US)

202230AQI (US)

31
21
31
30
31
29
1
21
1
1
28
31
29
1
31
314
3

Highest AQI (US) recorded in

March

36AQI (US)

Lowest AQI (US) recorded in

December

23AQI (US)

202125AQI (US)

30
28
31
30
30
1
28
2
31
25
6
30
31
30
31
355
9

Highest AQI (US) recorded in

August

36AQI (US)

Lowest AQI (US) recorded in

February

10AQI (US)

202026AQI (US)

13
20
1
17
1
21
9
26
5
17
13
1
19
31
30
31
225
29
1

Highest AQI (US) recorded in

August

54AQI (US)

Lowest AQI (US) recorded in

December

8AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
37AQI (US)
Least Polluted Year Recorded
2021(Avg.)
25AQI (US)

Nakano's annual 2026 AQI (US) (36) shows an average percentage change of 19.6% (worsened AQI (US)) compared to previous years: 2020 (26), 2021 (25), 2022 (30), 2023 (37), 2024 (33), 2025 (33).