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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Marunouchi, Ouda Yamaguchi, Nara, 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

Marunouchi, Ouda Yamaguchi, Nara, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2025
60AQI
Lowest AQI recorded on
29th Aug 2024
11AQI

Same Day Analysis (14th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2025 and 2024 on the same day.

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

Marunouchi, Ouda Yamaguchi, Nara, Japan

AQI
Day
Night
.

5 AM13th Aug 2026

6 PM

4 AM14th Aug 2026

Day time
Avg. Highest Time
6AM13th Aug

27AQI

Avg. Lowest Time
5PM13th Aug

23AQI

Night time
Avg. Highest Time
9PM13th Aug

38AQI

Avg. Lowest Time
2AM14th Aug

25AQI

In the last 24 hours,

Marunouchi's AQI reached its highest point of 38 at 9 PM during the Night, while the lowest point, 23, was recorded at 5 PM during the Day between 13th Aug and 14th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Marunouchi, Ouda Yamaguchi, Nara, 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 2026555 AMAQI
16th Jul 2026546 AMAQI
16th Jul 2026597 AMAQI
16th Jul 2026598 AMAQI
16th Jul 2026579 AMAQI
16th Jul 20265510 AMAQI
16th Jul 20265411 AMAQI
16th Jul 20265612 PMAQI
16th Jul 2026581 PMAQI
16th Jul 2026562 PMAQI
16th Jul 2026563 PMAQI
16th Jul 2026584 PMAQI
16th Jul 2026545 PMAQI
16th Jul 2026536 PMAQI
16th Jul 2026547 PMAQI
16th Jul 2026488 PMAQI
16th Jul 2026389 PMAQI
16th Jul 20263810 PMAQI
16th Jul 20264211 PMAQI
17th Jul 20264412 AMAQI
17th Jul 2026421 AMAQI
17th Jul 2026382 AMAQI
17th Jul 2026403 AMAQI
17th Jul 2026334 AMAQI

27°C22/32°C

17th Jul 2026315 AMAQI
17th Jul 2026266 AMAQI
17th Jul 2026257 AMAQI
17th Jul 2026278 AMAQI
17th Jul 2026339 AMAQI
17th Jul 20263610 AMAQI
17th Jul 20266011 AMAQI
17th Jul 20264012 PMAQI
17th Jul 2026271 PMAQI
17th Jul 2026242 PMAQI
17th Jul 2026243 PMAQI
17th Jul 2026554 PMAQI
17th Jul 2026545 PMAQI
17th Jul 2026556 PMAQI
17th Jul 2026587 PMAQI
17th Jul 2026588 PMAQI
17th Jul 2026599 PMAQI
17th Jul 20266010 PMAQI
17th Jul 20266511 PMAQI
18th Jul 20265912 AMAQI
18th Jul 2026621 AMAQI
18th Jul 2026622 AMAQI
18th Jul 2026583 AMAQI
18th Jul 2026604 AMAQI

26°C21/33°C

18th Jul 2026645 AMAQI
18th Jul 2026626 AMAQI
18th Jul 2026627 AMAQI
18th Jul 2026628 AMAQI
18th Jul 2026649 AMAQI
18th Jul 20266210 AMAQI
18th Jul 20266611 AMAQI
18th Jul 20266212 PMAQI
18th Jul 2026641 PMAQI
18th Jul 2026602 PMAQI
18th Jul 2026523 PMAQI
18th Jul 2026474 PMAQI
18th Jul 2026545 PMAQI
18th Jul 2026586 PMAQI
18th Jul 2026527 PMAQI
18th Jul 2026448 PMAQI
18th Jul 2026519 PMAQI
18th Jul 20264410 PMAQI
18th Jul 20264611 PMAQI
19th Jul 20265212 AMAQI
19th Jul 2026471 AMAQI
19th Jul 2026492 AMAQI
19th Jul 2026423 AMAQI
19th Jul 2026364 AMAQI

26°C22/31°C

19th Jul 2026365 AMAQI
19th Jul 2026316 AMAQI
19th Jul 2026367 AMAQI
19th Jul 2026318 AMAQI
19th Jul 2026339 AMAQI
19th Jul 20263310 AMAQI
19th Jul 20263411 AMAQI
19th Jul 20264012 PMAQI
19th Jul 2026361 PMAQI
19th Jul 2026292 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026214 PMAQI
19th Jul 2026215 PMAQI
19th Jul 2026236 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026278 PMAQI
19th Jul 2026299 PMAQI
19th Jul 20262710 PMAQI
19th Jul 20264211 PMAQI
20th Jul 20263612 AMAQI
20th Jul 2026231 AMAQI
20th Jul 2026322 AMAQI
20th Jul 2026323 AMAQI
20th Jul 2026344 AMAQI

26°C22/30°C

20th Jul 2026405 AMAQI
20th Jul 2026336 AMAQI
20th Jul 2026337 AMAQI
20th Jul 2026338 AMAQI
20th Jul 2026319 AMAQI
20th Jul 20263310 AMAQI
20th Jul 20263311 AMAQI
20th Jul 20263812 PMAQI
20th Jul 2026381 PMAQI
20th Jul 2026332 PMAQI
20th Jul 2026383 PMAQI
20th Jul 2026514 PMAQI
20th Jul 2026525 PMAQI
20th Jul 2026466 PMAQI
20th Jul 2026447 PMAQI
20th Jul 2026468 PMAQI
20th Jul 2026469 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20264811 PMAQI
21st Jul 20264612 AMAQI
21st Jul 2026501 AMAQI
21st Jul 2026512 AMAQI
21st Jul 2026533 AMAQI
21st Jul 2026584 AMAQI

27°C22/33°C

21st Jul 2026605 AMAQI
21st Jul 2026576 AMAQI
21st Jul 2026537 AMAQI
21st Jul 2026548 AMAQI
21st Jul 2026569 AMAQI
21st Jul 20266010 AMAQI
21st Jul 20265811 AMAQI
21st Jul 2026641 PMAQI
21st Jul 2026642 PMAQI
21st Jul 2026623 PMAQI
21st Jul 2026584 PMAQI
21st Jul 2026605 PMAQI
21st Jul 2026636 PMAQI
21st Jul 2026967 PMAQI
21st Jul 2026668 PMAQI
21st Jul 2026709 PMAQI
21st Jul 20266810 PMAQI
21st Jul 20266811 PMAQI
22nd Jul 20266712 AMAQI
22nd Jul 2026701 AMAQI
22nd Jul 2026702 AMAQI
22nd Jul 2026683 AMAQI
22nd Jul 2026704 AMAQI

28°C22/34°C

22nd Jul 2026705 AMAQI
22nd Jul 2026666 AMAQI
22nd Jul 2026717 AMAQI
22nd Jul 2026688 AMAQI
22nd Jul 2026689 AMAQI
22nd Jul 20266710 AMAQI
22nd Jul 20266611 AMAQI
22nd Jul 20267012 PMAQI
22nd Jul 2026721 PMAQI
22nd Jul 2026732 PMAQI
22nd Jul 2026763 PMAQI
22nd Jul 2026784 PMAQI
22nd Jul 2026835 PMAQI
22nd Jul 2026816 PMAQI
22nd Jul 2026837 PMAQI
22nd Jul 2026838 PMAQI
22nd Jul 2026869 PMAQI
22nd Jul 20268010 PMAQI
22nd Jul 20268111 PMAQI
23rd Jul 20267512 AMAQI
23rd Jul 2026811 AMAQI
23rd Jul 2026782 AMAQI
23rd Jul 2026743 AMAQI
23rd Jul 2026754 AMAQI

28°C22/34°C

23rd Jul 2026725 AMAQI
23rd Jul 2026746 AMAQI
23rd Jul 2026767 AMAQI
23rd Jul 2026718 AMAQI
23rd Jul 2026769 AMAQI
23rd Jul 20267310 AMAQI
23rd Jul 20267011 AMAQI
23rd Jul 20267112 PMAQI
23rd Jul 2026661 PMAQI
23rd Jul 2026682 PMAQI
23rd Jul 2026733 PMAQI
23rd Jul 2026724 PMAQI
23rd Jul 2026735 PMAQI
23rd Jul 2026716 PMAQI
23rd Jul 2026707 PMAQI
23rd Jul 2026568 PMAQI
23rd Jul 2026549 PMAQI
23rd Jul 20262910 PMAQI
23rd Jul 20262711 PMAQI
24th Jul 20263612 AMAQI
24th Jul 2026311 AMAQI
24th Jul 2026312 AMAQI
24th Jul 2026293 AMAQI
24th Jul 2026314 AMAQI

28°C23/36°C

24th Jul 2026295 AMAQI
24th Jul 2026336 AMAQI
24th Jul 2026337 AMAQI
24th Jul 2026368 AMAQI
24th Jul 2026409 AMAQI
24th Jul 20263810 AMAQI
24th Jul 20265011 AMAQI
24th Jul 20264212 PMAQI
24th Jul 2026461 PMAQI
24th Jul 2026532 PMAQI
24th Jul 2026723 PMAQI
24th Jul 2026834 PMAQI
24th Jul 2026735 PMAQI
24th Jul 2026766 PMAQI
24th Jul 2026587 PMAQI
24th Jul 2026278 PMAQI
24th Jul 2026299 PMAQI
24th Jul 20264610 PMAQI
24th Jul 20265711 PMAQI
25th Jul 20264412 AMAQI
25th Jul 2026331 AMAQI
25th Jul 2026382 AMAQI
25th Jul 2026443 AMAQI
25th Jul 2026444 AMAQI

28°C22/35°C

25th Jul 2026345 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026338 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264210 AMAQI
25th Jul 20263611 AMAQI
25th Jul 20264012 PMAQI
25th Jul 2026381 PMAQI
25th Jul 2026462 PMAQI
25th Jul 2026333 PMAQI
25th Jul 2026384 PMAQI
25th Jul 2026465 PMAQI
25th Jul 2026466 PMAQI
25th Jul 2026427 PMAQI
25th Jul 2026508 PMAQI
25th Jul 2026409 PMAQI
25th Jul 20263610 PMAQI
25th Jul 20263811 PMAQI
26th Jul 20264012 AMAQI
26th Jul 2026401 AMAQI
26th Jul 2026382 AMAQI
26th Jul 2026403 AMAQI
26th Jul 2026404 AMAQI

27°C21/35°C

26th Jul 2026365 AMAQI
26th Jul 2026426 AMAQI
26th Jul 2026367 AMAQI
26th Jul 2026388 AMAQI
26th Jul 2026409 AMAQI
26th Jul 20264810 AMAQI
26th Jul 20264211 AMAQI
26th Jul 20264612 PMAQI
26th Jul 2026481 PMAQI
26th Jul 2026512 PMAQI
26th Jul 2026443 PMAQI
26th Jul 2026464 PMAQI
26th Jul 2026445 PMAQI
26th Jul 2026466 PMAQI
26th Jul 2026487 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026449 PMAQI
26th Jul 20263610 PMAQI
26th Jul 20263111 PMAQI
27th Jul 20263112 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026272 AMAQI
27th Jul 2026273 AMAQI
27th Jul 2026254 AMAQI

26°C20/34°C

27th Jul 2026275 AMAQI
27th Jul 2026276 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026409 AMAQI
27th Jul 20265010 AMAQI
27th Jul 20263111 AMAQI
27th Jul 20263112 PMAQI
27th Jul 2026271 PMAQI
27th Jul 2026272 PMAQI
27th Jul 2026273 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026256 PMAQI
27th Jul 2026257 PMAQI
27th Jul 2026258 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20262310 PMAQI
27th Jul 20262311 PMAQI
28th Jul 20262712 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026273 AMAQI
28th Jul 2026274 AMAQI

26°C21/33°C

28th Jul 2026275 AMAQI
28th Jul 2026276 AMAQI
28th Jul 2026277 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026299 AMAQI
28th Jul 20263110 AMAQI
28th Jul 20263311 AMAQI
28th Jul 20264012 PMAQI
28th Jul 2026571 PMAQI
28th Jul 2026542 PMAQI
28th Jul 2026443 PMAQI
28th Jul 2026384 PMAQI
28th Jul 2026485 PMAQI
28th Jul 2026426 PMAQI
28th Jul 2026217 PMAQI
28th Jul 2026238 PMAQI
28th Jul 2026239 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20262311 PMAQI
29th Jul 20262312 AMAQI
29th Jul 2026231 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026254 AMAQI

25°C21/31°C

29th Jul 2026275 AMAQI
29th Jul 2026296 AMAQI
29th Jul 2026277 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026279 AMAQI
29th Jul 20263610 AMAQI
29th Jul 20263811 AMAQI
29th Jul 20264612 PMAQI
29th Jul 2026481 PMAQI
29th Jul 2026492 PMAQI
29th Jul 2026483 PMAQI
29th Jul 2026484 PMAQI
29th Jul 2026445 PMAQI
29th Jul 2026426 PMAQI
29th Jul 2026537 PMAQI
29th Jul 2026408 PMAQI
29th Jul 2026429 PMAQI
29th Jul 20264610 PMAQI
29th Jul 20264611 PMAQI
30th Jul 20264612 AMAQI
30th Jul 2026521 AMAQI
30th Jul 2026532 AMAQI
30th Jul 2026523 AMAQI
30th Jul 2026514 AMAQI

25°C20/29°C

30th Jul 2026525 AMAQI
30th Jul 2026526 AMAQI
30th Jul 2026537 AMAQI
30th Jul 2026538 AMAQI
30th Jul 2026529 AMAQI
30th Jul 20265210 AMAQI
30th Jul 20265711 AMAQI
30th Jul 20266212 PMAQI
30th Jul 2026621 PMAQI
30th Jul 2026602 PMAQI
30th Jul 2026593 PMAQI
30th Jul 2026634 PMAQI
30th Jul 2026605 PMAQI
30th Jul 2026576 PMAQI
30th Jul 2026557 PMAQI
30th Jul 2026558 PMAQI
30th Jul 2026489 PMAQI
30th Jul 20264410 PMAQI
30th Jul 20264611 PMAQI
31st Jul 20263812 AMAQI
31st Jul 2026381 AMAQI
31st Jul 2026402 AMAQI
31st Jul 2026403 AMAQI
31st Jul 2026444 AMAQI

27°C22/34°C

31st Jul 2026425 AMAQI
31st Jul 2026386 AMAQI
31st Jul 2026427 AMAQI
31st Jul 2026508 AMAQI
31st Jul 2026539 AMAQI
31st Jul 20265210 AMAQI
31st Jul 20265811 AMAQI
31st Jul 20264012 PMAQI
31st Jul 2026461 PMAQI
31st Jul 2026482 PMAQI
31st Jul 2026443 PMAQI
31st Jul 2026424 PMAQI
31st Jul 2026515 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026447 PMAQI
31st Jul 2026448 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20264610 PMAQI
31st Jul 20265811 PMAQI
1st Aug 20265012 AMAQI
1st Aug 2026461 AMAQI
1st Aug 2026402 AMAQI
1st Aug 2026403 AMAQI
1st Aug 2026504 AMAQI

26°C21/34°C

1st Aug 2026445 AMAQI
1st Aug 2026526 AMAQI
1st Aug 2026447 AMAQI
1st Aug 2026448 AMAQI
1st Aug 2026569 AMAQI
1st Aug 20265610 AMAQI
1st Aug 20265411 AMAQI
1st Aug 20265512 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026502 PMAQI
1st Aug 2026513 PMAQI
1st Aug 2026494 PMAQI
1st Aug 2026465 PMAQI
1st Aug 2026446 PMAQI
1st Aug 2026467 PMAQI
1st Aug 2026488 PMAQI
1st Aug 2026489 PMAQI
1st Aug 20264810 PMAQI
1st Aug 20264811 PMAQI
2nd Aug 20264412 AMAQI
2nd Aug 2026441 AMAQI
2nd Aug 2026462 AMAQI
2nd Aug 2026463 AMAQI
2nd Aug 2026464 AMAQI

27°C21/34°C

2nd Aug 2026485 AMAQI
2nd Aug 2026486 AMAQI
2nd Aug 2026447 AMAQI
2nd Aug 2026508 AMAQI
2nd Aug 2026549 AMAQI
2nd Aug 20264610 AMAQI
2nd Aug 20265111 AMAQI
2nd Aug 20263812 PMAQI
2nd Aug 2026441 PMAQI
2nd Aug 2026482 PMAQI
2nd Aug 2026463 PMAQI
2nd Aug 2026424 PMAQI
2nd Aug 2026405 PMAQI
2nd Aug 2026446 PMAQI
2nd Aug 2026427 PMAQI
2nd Aug 2026408 PMAQI
2nd Aug 2026429 PMAQI
2nd Aug 20264210 PMAQI
2nd Aug 20264211 PMAQI
3rd Aug 20264212 AMAQI
3rd Aug 2026441 AMAQI
3rd Aug 2026442 AMAQI
3rd Aug 2026443 AMAQI
3rd Aug 2026464 AMAQI

27°C22/32°C

3rd Aug 2026465 AMAQI
3rd Aug 2026486 AMAQI
3rd Aug 2026517 AMAQI
3rd Aug 2026508 AMAQI
3rd Aug 2026549 AMAQI
3rd Aug 20265410 AMAQI
3rd Aug 20265211 AMAQI
3rd Aug 20265412 PMAQI
3rd Aug 2026531 PMAQI
3rd Aug 2026522 PMAQI
3rd Aug 2026513 PMAQI
3rd Aug 2026524 PMAQI
3rd Aug 2026545 PMAQI
3rd Aug 2026546 PMAQI
3rd Aug 2026507 PMAQI
3rd Aug 2026488 PMAQI
3rd Aug 2026469 PMAQI
3rd Aug 20264210 PMAQI
3rd Aug 20264211 PMAQI
4th Aug 20263812 AMAQI
4th Aug 2026381 AMAQI
4th Aug 2026292 AMAQI
4th Aug 2026213 AMAQI
4th Aug 2026234 AMAQI

26°C23/32°C

4th Aug 2026215 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026257 AMAQI
4th Aug 2026258 AMAQI
4th Aug 2026239 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262111 AMAQI
4th Aug 20262912 PMAQI
4th Aug 2026211 PMAQI
4th Aug 2026212 PMAQI
4th Aug 2026233 PMAQI
4th Aug 2026254 PMAQI
4th Aug 2026215 PMAQI
4th Aug 2026216 PMAQI
4th Aug 2026217 PMAQI
4th Aug 2026218 PMAQI
4th Aug 2026239 PMAQI
4th Aug 20262510 PMAQI
4th Aug 20262511 PMAQI
5th Aug 20262512 AMAQI
5th Aug 2026211 AMAQI
5th Aug 2026232 AMAQI
5th Aug 2026253 AMAQI
5th Aug 2026254 AMAQI

24°C19/31°C

5th Aug 2026255 AMAQI
5th Aug 2026236 AMAQI
5th Aug 2026237 AMAQI
5th Aug 2026218 AMAQI
5th Aug 2026239 AMAQI
5th Aug 20262710 AMAQI
5th Aug 20262511 AMAQI
5th Aug 20262512 PMAQI
5th Aug 2026211 PMAQI
5th Aug 2026232 PMAQI
5th Aug 2026213 PMAQI
5th Aug 2026214 PMAQI
5th Aug 2026215 PMAQI
5th Aug 2026236 PMAQI
5th Aug 2026217 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026259 PMAQI
5th Aug 20262910 PMAQI
5th Aug 20262911 PMAQI
6th Aug 20262712 AMAQI
6th Aug 2026251 AMAQI
6th Aug 2026232 AMAQI
6th Aug 2026233 AMAQI
6th Aug 2026234 AMAQI

25°C18/31°C

6th Aug 2026235 AMAQI
6th Aug 2026236 AMAQI
6th Aug 2026237 AMAQI
6th Aug 2026238 AMAQI
6th Aug 2026239 AMAQI
6th Aug 20262510 AMAQI
6th Aug 20262511 AMAQI
6th Aug 20262512 PMAQI
6th Aug 2026251 PMAQI
6th Aug 2026252 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026254 PMAQI
6th Aug 2026255 PMAQI
6th Aug 2026216 PMAQI
6th Aug 2026217 PMAQI
6th Aug 2026258 PMAQI
6th Aug 2026259 PMAQI
6th Aug 20262910 PMAQI
6th Aug 20262511 PMAQI
7th Aug 20262512 AMAQI
7th Aug 2026251 AMAQI
7th Aug 2026252 AMAQI
7th Aug 2026233 AMAQI
7th Aug 2026254 AMAQI

26°C23/30°C

7th Aug 2026235 AMAQI
7th Aug 2026216 AMAQI
7th Aug 2026217 AMAQI
7th Aug 2026258 AMAQI
7th Aug 2026259 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20262511 AMAQI
7th Aug 20262512 PMAQI
7th Aug 2026321 PMAQI
7th Aug 2026402 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026255 PMAQI
7th Aug 2026216 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026298 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20262510 PMAQI
7th Aug 20262311 PMAQI
8th Aug 20262512 AMAQI
8th Aug 2026231 AMAQI
8th Aug 2026292 AMAQI
8th Aug 2026253 AMAQI
8th Aug 2026254 AMAQI

26°C22/31°C

8th Aug 2026255 AMAQI
8th Aug 2026236 AMAQI
8th Aug 2026217 AMAQI
8th Aug 2026218 AMAQI
8th Aug 2026259 AMAQI
8th Aug 20262710 AMAQI
8th Aug 20262511 AMAQI
8th Aug 20262112 PMAQI
8th Aug 2026271 PMAQI
8th Aug 2026252 PMAQI
8th Aug 2026253 PMAQI
8th Aug 2026274 PMAQI
8th Aug 2026255 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026297 PMAQI
8th Aug 2026298 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 2026254 AMAQI

25°C20/33°C

9th Aug 2026255 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026277 AMAQI
9th Aug 2026238 AMAQI
9th Aug 2026299 AMAQI
9th Aug 20262510 AMAQI
9th Aug 20263111 AMAQI
9th Aug 20262912 PMAQI
9th Aug 2026231 PMAQI
9th Aug 2026252 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026254 PMAQI
9th Aug 2026255 PMAQI
9th Aug 2026216 PMAQI
9th Aug 2026257 PMAQI
9th Aug 2026258 PMAQI
9th Aug 2026219 PMAQI
9th Aug 20262110 PMAQI
9th Aug 20262111 PMAQI
10th Aug 20262112 AMAQI
10th Aug 2026231 AMAQI
10th Aug 2026252 AMAQI
10th Aug 2026253 AMAQI
10th Aug 2026254 AMAQI

26°C21/33°C

10th Aug 2026255 AMAQI
10th Aug 2026256 AMAQI
10th Aug 2026257 AMAQI
10th Aug 2026258 AMAQI
10th Aug 2026279 AMAQI
10th Aug 20262710 AMAQI
10th Aug 20262711 AMAQI
10th Aug 20262512 PMAQI
10th Aug 2026251 PMAQI
10th Aug 2026292 PMAQI
10th Aug 2026273 PMAQI
10th Aug 2026274 PMAQI
10th Aug 2026255 PMAQI
10th Aug 2026276 PMAQI
10th Aug 2026257 PMAQI
10th Aug 2026258 PMAQI
10th Aug 2026259 PMAQI
10th Aug 20262310 PMAQI
10th Aug 20262511 PMAQI
11th Aug 20262312 AMAQI
11th Aug 2026251 AMAQI
11th Aug 2026232 AMAQI
11th Aug 2026213 AMAQI
11th Aug 2026234 AMAQI

24°C19/30°C

11th Aug 2026215 AMAQI
11th Aug 2026216 AMAQI
11th Aug 2026217 AMAQI
11th Aug 2026218 AMAQI
11th Aug 2026219 AMAQI
11th Aug 20262110 AMAQI
11th Aug 20262111 AMAQI
11th Aug 20262112 PMAQI
11th Aug 2026251 PMAQI
11th Aug 2026232 PMAQI
11th Aug 2026293 PMAQI
11th Aug 2026214 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026276 PMAQI
11th Aug 2026257 PMAQI
11th Aug 2026238 PMAQI
11th Aug 2026239 PMAQI
11th Aug 20262510 PMAQI
11th Aug 20262111 PMAQI
12th Aug 20262112 AMAQI
12th Aug 2026211 AMAQI
12th Aug 2026232 AMAQI
12th Aug 2026213 AMAQI
12th Aug 2026214 AMAQI

22°C17/28°C

12th Aug 2026215 AMAQI
12th Aug 2026216 AMAQI
12th Aug 2026237 AMAQI
12th Aug 2026238 AMAQI
12th Aug 2026239 AMAQI
12th Aug 20262110 AMAQI
12th Aug 20262511 AMAQI
12th Aug 20262512 PMAQI
12th Aug 2026251 PMAQI
12th Aug 2026252 PMAQI
12th Aug 2026293 PMAQI
12th Aug 2026254 PMAQI
12th Aug 2026255 PMAQI
12th Aug 2026216 PMAQI
12th Aug 2026257 PMAQI
12th Aug 2026258 PMAQI
12th Aug 2026259 PMAQI
12th Aug 20262110 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20262512 AMAQI
13th Aug 2026251 AMAQI
13th Aug 2026252 AMAQI
13th Aug 2026253 AMAQI
13th Aug 2026294 AMAQI

22°C21/23°C

13th Aug 2026255 AMAQI
13th Aug 2026276 AMAQI
13th Aug 2026277 AMAQI
13th Aug 2026278 AMAQI
13th Aug 2026259 AMAQI
13th Aug 20262510 AMAQI
13th Aug 20262511 AMAQI
13th Aug 20262512 PMAQI
13th Aug 2026251 PMAQI
13th Aug 2026252 PMAQI
13th Aug 2026253 PMAQI
13th Aug 2026254 PMAQI
13th Aug 2026235 PMAQI
13th Aug 2026256 PMAQI
13th Aug 2026257 PMAQI
13th Aug 2026318 PMAQI
13th Aug 2026389 PMAQI
13th Aug 20262910 PMAQI
13th Aug 20263311 PMAQI
14th Aug 20263312 AMAQI
14th Aug 2026291 AMAQI
14th Aug 2026252 AMAQI
14th Aug 2026293 AMAQI
14th Aug 2026294 AMAQI

22°C19/25°C

14th Aug 2026255 AMAQI
5 AM
14th Aug 2026276 AMAQI
14th Aug 2026257 AMAQI
14th Aug 2026258 AMAQI
14th Aug 2026219 AMAQI
14th Aug 20262110 AMAQI
14th Aug 20263011 AMAQI
11 AM
14th Aug 20262512 PMAQI
14th Aug 2026231 PMAQI
14th Aug 2026252 PMAQI
14th Aug 2026273 PMAQI
14th Aug 2026294 PMAQI
14th Aug 2026315 PMAQI
14th Aug 2026276 PMAQI
6 PM
14th Aug 2026317 PMAQI
14th Aug 2026298 PMAQI
14th Aug 2026369 PMAQI
14th Aug 20263810 PMAQI
14th Aug 20264411 PMAQI
11 PM
4 AM

24°C18/30°C

Day time
Avg. Highest Time
9 AM - 6 PM

41AQI

10 hours / Day
300 hours / Month
Avg. Lowest Time
5 AM - 8 AM

36AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 6 PM (Avg. 41), while the lowest AQI was between 5 AM to 8 AM (Avg. 36).
Night time
Avg. Highest Time
7 PM

41AQI

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

37AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 41), while the lowest AQI was between 12 AM to 4 AM (Avg. 37).

2026 Days Vs Air Quality

Marunouchi, Ouda Yamaguchi, Nara, 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

Marunouchi, Ouda Yamaguchi, Nara, 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
25AQI (US)
2nd January 2026
26AQI (US)
3rd January 2026
21AQI (US)
4th January 2026
34AQI (US)
5th January 2026
55AQI (US)
6th January 2026
22AQI (US)
7th January 2026
37AQI (US)
8th January 2026
37AQI (US)
9th January 2026
26AQI (US)
10th January 2026
41AQI (US)
11th January 2026
37AQI (US)
12th January 2026
39AQI (US)
13th January 2026
38AQI (US)
14th January 2026
30AQI (US)
15th January 2026
48AQI (US)
16th January 2026
67AQI (US)
17th January 2026
64AQI (US)
18th January 2026
57AQI (US)
19th January 2026
61AQI (US)
20th January 2026
34AQI (US)
21st January 2026
15AQI (US)
22nd January 2026
29AQI (US)
23rd January 2026
54AQI (US)
24th January 2026
52AQI (US)
25th January 2026
17AQI (US)
26th January 2026
21AQI (US)
27th January 2026
50AQI (US)
28th January 2026
27AQI (US)
29th January 2026
25AQI (US)
30th January 2026
37AQI (US)
31st January 2026
29AQI (US)
1st February 2026
44AQI (US)
2nd February 2026
60AQI (US)
3rd February 2026
34AQI (US)
4th February 2026
28AQI (US)
5th February 2026
47AQI (US)
6th February 2026
43AQI (US)
7th February 2026
15AQI (US)
8th February 2026
16AQI (US)
9th February 2026
42AQI (US)
10th February 2026
46AQI (US)
11th February 2026
49AQI (US)
12th February 2026
53AQI (US)
13th February 2026
60AQI (US)
14th February 2026
56AQI (US)
15th February 2026
62AQI (US)
16th February 2026
56AQI (US)
17th February 2026
21AQI (US)
18th February 2026
26AQI (US)
19th February 2026
35AQI (US)
20th February 2026
32AQI (US)
21st February 2026
55AQI (US)
22nd February 2026
46AQI (US)
23rd February 2026
50AQI (US)
24th February 2026
58AQI (US)
25th February 2026
33AQI (US)
26th February 2026
18AQI (US)
27th February 2026
47AQI (US)
28th February 2026
46AQI (US)
1st March 2026
50AQI (US)
2nd March 2026
83AQI (US)
3rd March 2026
49AQI (US)
4th March 2026
59AQI (US)
5th March 2026
56AQI (US)
6th March 2026
53AQI (US)
7th March 2026
49AQI (US)
8th March 2026
47AQI (US)
9th March 2026
51AQI (US)
10th March 2026
57AQI (US)
11th March 2026
53AQI (US)
12th March 2026
67AQI (US)
13th March 2026
48AQI (US)
14th March 2026
45AQI (US)
15th March 2026
61AQI (US)
16th March 2026
62AQI (US)
17th March 2026
52AQI (US)
18th March 2026
57AQI (US)
19th March 2026
37AQI (US)
20th March 2026
53AQI (US)
21st March 2026
47AQI (US)
22nd March 2026
52AQI (US)
23rd March 2026
49AQI (US)
24th March 2026
34AQI (US)
25th March 2026
53AQI (US)
26th March 2026
10AQI (US)
27th March 2026
30AQI (US)
28th March 2026
63AQI (US)
29th March 2026
63AQI (US)
30th March 2026
51AQI (US)
31st March 2026
20AQI (US)
1st April 2026
22AQI (US)
2nd April 2026
48AQI (US)
3rd April 2026
54AQI (US)
4th April 2026
41AQI (US)
5th April 2026
18AQI (US)
6th April 2026
36AQI (US)
7th April 2026
28AQI (US)
8th April 2026
29AQI (US)
9th April 2026
41AQI (US)
10th April 2026
47AQI (US)
11th April 2026
36AQI (US)
12th April 2026
38AQI (US)
13th April 2026
37AQI (US)
14th April 2026
47AQI (US)
15th April 2026
35AQI (US)
16th April 2026
35AQI (US)
17th April 2026
40AQI (US)
18th April 2026
31AQI (US)
19th April 2026
39AQI (US)
20th April 2026
38AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
44AQI (US)
23rd April 2026
35AQI (US)
24th April 2026
32AQI (US)
25th April 2026
46AQI (US)
26th April 2026
49AQI (US)
27th April 2026
50AQI (US)
28th April 2026
47AQI (US)
29th April 2026
43AQI (US)
30th April 2026
31AQI (US)
1st May 2026
39AQI (US)
2nd May 2026
54AQI (US)
3rd May 2026
53AQI (US)
4th May 2026
18AQI (US)
5th May 2026
22AQI (US)
6th May 2026
34AQI (US)
7th May 2026
34AQI (US)
8th May 2026
27AQI (US)
9th May 2026
29AQI (US)
10th May 2026
34AQI (US)
11th May 2026
39AQI (US)
12th May 2026
40AQI (US)
13th May 2026
44AQI (US)
14th May 2026
40AQI (US)
15th May 2026
42AQI (US)
16th May 2026
84AQI (US)
17th May 2026
68AQI (US)
18th May 2026
53AQI (US)
19th May 2026
48AQI (US)
20th May 2026
61AQI (US)
21st May 2026
60AQI (US)
22nd May 2026
62AQI (US)
23rd May 2026
55AQI (US)
24th May 2026
59AQI (US)
25th May 2026
49AQI (US)
26th May 2026
39AQI (US)
27th May 2026
24AQI (US)
28th May 2026
25AQI (US)
29th May 2026
25AQI (US)
30th May 2026
24AQI (US)
31st May 2026
27AQI (US)
1st June 2026
30AQI (US)
2nd June 2026
27AQI (US)
3rd June 2026
17AQI (US)
4th June 2026
24AQI (US)
5th June 2026
15AQI (US)
6th June 2026
25AQI (US)
7th June 2026
21AQI (US)
8th June 2026
20AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
24AQI (US)
12th June 2026
26AQI (US)
13th June 2026
29AQI (US)
14th June 2026
25AQI (US)
15th June 2026
23AQI (US)
16th June 2026
28AQI (US)
17th June 2026
23AQI (US)
18th June 2026
25AQI (US)
19th June 2026
35AQI (US)
20th June 2026
28AQI (US)
21st June 2026
13AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
21AQI (US)
25th June 2026
26AQI (US)
26th June 2026
29AQI (US)
27th June 2026
26AQI (US)
28th June 2026
28AQI (US)
29th June 2026
31AQI (US)
30th June 2026
59AQI (US)
1st July 2026
45AQI (US)
2nd July 2026
15AQI (US)
3rd July 2026
22AQI (US)
4th July 2026
24AQI (US)
5th July 2026
20AQI (US)
6th July 2026
17AQI (US)
7th July 2026
19AQI (US)
8th July 2026
25AQI (US)
9th July 2026
25AQI (US)
10th July 2026
27AQI (US)
11th July 2026
28AQI (US)
12th July 2026
27AQI (US)
13th July 2026
31AQI (US)
14th July 2026
35AQI (US)
15th July 2026
36AQI (US)
16th July 2026
52AQI (US)
17th July 2026
42AQI (US)
18th July 2026
57AQI (US)
19th July 2026
33AQI (US)
20th July 2026
38AQI (US)
21st July 2026
61AQI (US)
22nd July 2026
74AQI (US)
23rd July 2026
68AQI (US)
24th July 2026
45AQI (US)
25th July 2026
40AQI (US)
26th July 2026
42AQI (US)
27th July 2026
28AQI (US)
28th July 2026
32AQI (US)
29th July 2026
37AQI (US)
30th July 2026
54AQI (US)
31st July 2026
45AQI (US)
1st August 2026
48AQI (US)
2nd August 2026
45AQI (US)
3rd August 2026
49AQI (US)
4th August 2026
24AQI (US)
5th August 2026
24AQI (US)
6th August 2026
24AQI (US)
7th August 2026
25AQI (US)
8th August 2026
25AQI (US)
9th August 2026
25AQI (US)
10th August 2026
25AQI (US)
11th August 2026
23AQI (US)
12th August 2026
23AQI (US)
13th August 2026
27AQI (US)
14th August 2026
28AQI (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

37AQI (US)

42AQI (US)

50AQI (US)

39AQI (US)

42AQI (US)

25AQI (US)

37AQI (US)

30AQI (US)

No. of days

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

202638AQI (US)

24
7
20
8
13
18
29
1
21
10
29
1
25
6
14
175
51

Highest AQI (US) recorded in

March

50AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202545AQI (US)

28
3
25
3
20
11
18
12
20
11
22
8
21
10
20
11
30
18
13
10
20
21
10
253
112

Highest AQI (US) recorded in

November

54AQI (US)

Lowest AQI (US) recorded in

September

32AQI (US)

202437AQI (US)

27
4
26
3
24
7
18
11
1
26
5
22
8
30
1
29
2
27
3
29
2
29
1
31
318
47
1

Highest AQI (US) recorded in

April

51AQI (US)

Lowest AQI (US) recorded in

December

30AQI (US)

202342AQI (US)

23
7
25
3
19
12
10
20
25
6
20
10
27
4
31
28
2
25
6
21
8
23
8
277
86

Highest AQI (US) recorded in

April

54AQI (US)

Lowest AQI (US) recorded in

August

26AQI (US)

202241AQI (US)

26
4
16
5
19
12
13
4
15
16
27
3
18
3
1
27
1
27
4
20
9
27
4
236
65

Highest AQI (US) recorded in

May

51AQI (US)

Lowest AQI (US) recorded in

August

17AQI (US)

202139AQI (US)

22
8
19
9
23
7
15
7
20
11
23
7
26
5
29
2
26
4
30
1
21
9
25
6
279
76

Highest AQI (US) recorded in

February

47AQI (US)

Lowest AQI (US) recorded in

August

29AQI (US)

202040AQI (US)

8
5
15
6
13
5
22
8
29
2
15
15
1
17
2
28
3
23
7
24
7
194
60
1

Highest AQI (US) recorded in

August

53AQI (US)

Lowest AQI (US) recorded in

July

27AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
45AQI (US)
Least Polluted Year Recorded
2024(Avg.)
37AQI (US)

Marunouchi's annual 2026 AQI (US) (38) shows an average percentage change of -6.2% (improved AQI (US)) compared to previous years: 2020 (40), 2021 (39), 2022 (41), 2023 (42), 2024 (37), 2025 (45).