Country Background

Koto, Shibuya, Tokyo, 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

Koto, Shibuya, Tokyo, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
3rd Aug 2022
93AQI
Lowest AQI recorded on
23rd Aug 2023
9AQI


Same Day Analysis (9th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 47 of Good air quality, showing improvement over 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 9th Aug - 10th Aug 2025

Koto, Shibuya, Tokyo, Japan

AQI
Day
Night
.

4 AM9th Aug 2025

6 PM

3 AM10th Aug 2025

Day time
Avg. Highest Time
6PM9th Aug

60AQI

Avg. Lowest Time
10AM9th Aug

33AQI

Night time
Avg. Highest Time
7PM9th Aug

62AQI

Avg. Lowest Time
3AM10th Aug

48AQI

In the last 24 hours,

Koto's AQI reached its highest point of 62 at 7 PM during the Night, while the lowest point, 33, was recorded at 10 AM during the Day between 9th Aug and 10th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Koto, Shibuya, Tokyo, Japan

JulAug
11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 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
Day
Night
11th Jul 2025694 AMAQI
11th Jul 2025665 AMAQI
11th Jul 2025666 AMAQI
11th Jul 2025667 AMAQI
11th Jul 2025668 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251710 AMAQI
11th Jul 20252011 AMAQI
11th Jul 20252012 PMAQI
11th Jul 2025281 PMAQI
11th Jul 2025302 PMAQI
11th Jul 2025313 PMAQI
11th Jul 2025324 PMAQI
11th Jul 2025345 PMAQI
11th Jul 2025346 PMAQI
11th Jul 2025367 PMAQI
11th Jul 2025428 PMAQI
11th Jul 2025559 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255711 PMAQI
12th Jul 20255612 AMAQI
12th Jul 2025591 AMAQI
12th Jul 2025652 AMAQI
12th Jul 2025663 AMAQI

24°C22/26°C

12th Jul 2025644 AMAQI
12th Jul 2025605 AMAQI
12th Jul 2025606 AMAQI
12th Jul 2025607 AMAQI
12th Jul 2025608 AMAQI
12th Jul 2025429 AMAQI
12th Jul 20254010 AMAQI
12th Jul 20254211 AMAQI
12th Jul 20254112 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025452 PMAQI
12th Jul 2025453 PMAQI
12th Jul 2025414 PMAQI
12th Jul 2025425 PMAQI
12th Jul 2025416 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025458 PMAQI
12th Jul 2025549 PMAQI
12th Jul 20255410 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025571 AMAQI
13th Jul 2025612 AMAQI
13th Jul 2025613 AMAQI

24°C21/28°C

13th Jul 2025604 AMAQI
13th Jul 2025585 AMAQI
13th Jul 2025586 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025588 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20253210 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20255012 PMAQI
13th Jul 2025501 PMAQI
13th Jul 2025492 PMAQI
13th Jul 2025493 PMAQI
13th Jul 2025524 PMAQI
13th Jul 2025505 PMAQI
13th Jul 2025516 PMAQI
13th Jul 2025417 PMAQI
13th Jul 2025378 PMAQI
13th Jul 2025519 PMAQI
13th Jul 20255110 PMAQI
13th Jul 20255011 PMAQI
14th Jul 20254812 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI

26°C24/29°C

14th Jul 2025574 AMAQI
14th Jul 2025575 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025568 AMAQI
14th Jul 2025329 AMAQI
14th Jul 20251810 AMAQI
14th Jul 20252311 AMAQI
14th Jul 20252712 PMAQI
14th Jul 2025271 PMAQI
14th Jul 2025232 PMAQI
14th Jul 2025233 PMAQI
14th Jul 2025264 PMAQI
14th Jul 2025295 PMAQI
14th Jul 2025356 PMAQI
14th Jul 2025377 PMAQI
14th Jul 2025388 PMAQI
14th Jul 2025489 PMAQI
14th Jul 20254910 PMAQI
14th Jul 20254611 PMAQI
15th Jul 20254712 AMAQI
15th Jul 2025511 AMAQI
15th Jul 2025562 AMAQI
15th Jul 2025563 AMAQI

26°C24/29°C

15th Jul 2025544 AMAQI
15th Jul 2025535 AMAQI
15th Jul 2025536 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20252410 AMAQI
15th Jul 20252411 AMAQI
15th Jul 20252412 PMAQI
15th Jul 2025361 PMAQI
15th Jul 2025362 PMAQI
15th Jul 2025393 PMAQI
15th Jul 2025404 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025376 PMAQI
15th Jul 2025387 PMAQI
15th Jul 2025368 PMAQI
15th Jul 2025409 PMAQI
15th Jul 20254110 PMAQI
15th Jul 20254211 PMAQI
16th Jul 20254612 AMAQI
16th Jul 2025501 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI

27°C26/28°C

16th Jul 2025524 AMAQI
16th Jul 2025505 AMAQI
16th Jul 2025506 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025489 AMAQI
16th Jul 20254110 AMAQI
16th Jul 20253611 AMAQI
16th Jul 20253512 PMAQI
16th Jul 2025311 PMAQI
16th Jul 2025272 PMAQI
16th Jul 2025283 PMAQI
16th Jul 2025284 PMAQI
16th Jul 2025305 PMAQI
16th Jul 2025256 PMAQI
16th Jul 2025227 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025419 PMAQI
16th Jul 20254010 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254212 AMAQI
17th Jul 2025461 AMAQI
17th Jul 2025502 AMAQI
17th Jul 2025513 AMAQI

27°C26/28°C

17th Jul 2025494 AMAQI
17th Jul 2025485 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025309 AMAQI
17th Jul 20252810 AMAQI
17th Jul 20254211 AMAQI
17th Jul 20254812 PMAQI
17th Jul 2025451 PMAQI
17th Jul 2025452 PMAQI
17th Jul 2025443 PMAQI
17th Jul 2025454 PMAQI
17th Jul 2025505 PMAQI
17th Jul 2025506 PMAQI
17th Jul 2025527 PMAQI
17th Jul 2025518 PMAQI
17th Jul 2025489 PMAQI
17th Jul 20254510 PMAQI
17th Jul 20254511 PMAQI
18th Jul 20254512 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025482 AMAQI
18th Jul 2025483 AMAQI

27°C26/30°C

18th Jul 2025474 AMAQI
18th Jul 2025475 AMAQI
18th Jul 2025466 AMAQI
18th Jul 2025467 AMAQI
18th Jul 2025468 AMAQI
18th Jul 2025379 AMAQI
18th Jul 20253610 AMAQI
18th Jul 20253811 AMAQI
18th Jul 20253112 PMAQI
18th Jul 2025261 PMAQI
18th Jul 2025282 PMAQI
18th Jul 2025353 PMAQI
18th Jul 2025304 PMAQI
18th Jul 2025265 PMAQI
18th Jul 2025256 PMAQI
18th Jul 2025287 PMAQI
18th Jul 2025328 PMAQI
18th Jul 2025389 PMAQI
18th Jul 20254010 PMAQI
18th Jul 20253811 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025431 AMAQI
19th Jul 2025472 AMAQI
19th Jul 2025463 AMAQI

27°C25/30°C

19th Jul 2025454 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025436 AMAQI
19th Jul 2025447 AMAQI
19th Jul 2025448 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252510 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025261 PMAQI
19th Jul 2025272 PMAQI
19th Jul 2025273 PMAQI
19th Jul 2025264 PMAQI
19th Jul 2025265 PMAQI
19th Jul 2025266 PMAQI
19th Jul 2025297 PMAQI
19th Jul 2025328 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253710 PMAQI
19th Jul 20253611 PMAQI
20th Jul 20253512 AMAQI
20th Jul 2025391 AMAQI
20th Jul 2025432 AMAQI
20th Jul 2025433 AMAQI

28°C25/30°C

20th Jul 2025424 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20252110 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025261 PMAQI
20th Jul 2025252 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025346 PMAQI
20th Jul 2025357 PMAQI
20th Jul 2025388 PMAQI
20th Jul 2025389 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253312 AMAQI
21st Jul 2025361 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025403 AMAQI

28°C26/31°C

21st Jul 2025384 AMAQI
21st Jul 2025365 AMAQI
21st Jul 2025376 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025378 AMAQI
21st Jul 2025279 AMAQI
21st Jul 20252810 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20253512 PMAQI
21st Jul 2025371 PMAQI
21st Jul 2025352 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025344 PMAQI
21st Jul 2025375 PMAQI
21st Jul 2025366 PMAQI
21st Jul 2025367 PMAQI
21st Jul 2025368 PMAQI
21st Jul 2025359 PMAQI
21st Jul 20253210 PMAQI
21st Jul 20253111 PMAQI
22nd Jul 20253212 AMAQI
22nd Jul 2025351 AMAQI
22nd Jul 2025372 AMAQI
22nd Jul 2025373 AMAQI

29°C27/32°C

22nd Jul 2025374 AMAQI
22nd Jul 2025365 AMAQI
22nd Jul 2025366 AMAQI
22nd Jul 2025367 AMAQI
22nd Jul 2025368 AMAQI
22nd Jul 2025299 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20253311 AMAQI
22nd Jul 20253712 PMAQI
22nd Jul 2025391 PMAQI
22nd Jul 2025402 PMAQI
22nd Jul 2025403 PMAQI
22nd Jul 2025404 PMAQI
22nd Jul 2025355 PMAQI
22nd Jul 2025376 PMAQI
22nd Jul 2025317 PMAQI
22nd Jul 2025288 PMAQI
22nd Jul 2025289 PMAQI
22nd Jul 20253210 PMAQI
22nd Jul 20253611 PMAQI
23rd Jul 20253112 AMAQI
23rd Jul 2025341 AMAQI
23rd Jul 2025362 AMAQI
23rd Jul 2025363 AMAQI

29°C27/31°C

23rd Jul 2025364 AMAQI
23rd Jul 2025365 AMAQI
23rd Jul 2025366 AMAQI
23rd Jul 2025367 AMAQI
23rd Jul 2025368 AMAQI
23rd Jul 2025279 AMAQI
23rd Jul 20253010 AMAQI
23rd Jul 20254311 AMAQI
23rd Jul 20254412 PMAQI
23rd Jul 2025411 PMAQI
23rd Jul 2025502 PMAQI
23rd Jul 2025503 PMAQI
23rd Jul 2025444 PMAQI
23rd Jul 2025395 PMAQI
23rd Jul 2025346 PMAQI
23rd Jul 2025327 PMAQI
23rd Jul 2025308 PMAQI
23rd Jul 2025339 PMAQI
23rd Jul 20254210 PMAQI
23rd Jul 20254411 PMAQI
24th Jul 20253212 AMAQI
24th Jul 2025321 AMAQI
24th Jul 2025352 AMAQI
24th Jul 2025353 AMAQI

29°C26/31°C

24th Jul 2025354 AMAQI
24th Jul 2025365 AMAQI
24th Jul 2025376 AMAQI
24th Jul 2025367 AMAQI
24th Jul 2025368 AMAQI
24th Jul 2025389 AMAQI
24th Jul 20254810 AMAQI
24th Jul 20255111 AMAQI
24th Jul 20255312 PMAQI
24th Jul 2025571 PMAQI
24th Jul 2025622 PMAQI
24th Jul 2025603 PMAQI
24th Jul 2025514 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025366 PMAQI
24th Jul 2025367 PMAQI
24th Jul 2025348 PMAQI
24th Jul 2025339 PMAQI
24th Jul 20253510 PMAQI
24th Jul 20253611 PMAQI
25th Jul 20253612 AMAQI
25th Jul 2025341 AMAQI
25th Jul 2025352 AMAQI
25th Jul 2025353 AMAQI

29°C26/33°C

25th Jul 2025374 AMAQI
25th Jul 2025405 AMAQI
25th Jul 2025416 AMAQI
25th Jul 2025417 AMAQI
25th Jul 2025408 AMAQI
25th Jul 2025429 AMAQI
25th Jul 20255210 AMAQI
25th Jul 20255211 AMAQI
25th Jul 20255012 PMAQI
25th Jul 2025431 PMAQI
25th Jul 2025462 PMAQI
25th Jul 2025403 PMAQI
25th Jul 2025334 PMAQI
25th Jul 2025355 PMAQI
25th Jul 2025356 PMAQI
25th Jul 2025307 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025329 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253212 AMAQI
26th Jul 2025341 AMAQI
26th Jul 2025362 AMAQI
26th Jul 2025373 AMAQI

29°C27/32°C

26th Jul 2025384 AMAQI
26th Jul 2025405 AMAQI
26th Jul 2025406 AMAQI
26th Jul 2025407 AMAQI
26th Jul 2025398 AMAQI
26th Jul 2025319 AMAQI
26th Jul 20253510 AMAQI
26th Jul 20254611 AMAQI
26th Jul 20254312 PMAQI
26th Jul 2025341 PMAQI
26th Jul 2025382 PMAQI
26th Jul 2025393 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025265 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025347 PMAQI
26th Jul 2025348 PMAQI
26th Jul 2025339 PMAQI
26th Jul 20253210 PMAQI
26th Jul 20253111 PMAQI
27th Jul 20253212 AMAQI
27th Jul 2025341 AMAQI
27th Jul 2025382 AMAQI
27th Jul 2025373 AMAQI

29°C28/32°C

27th Jul 2025374 AMAQI
27th Jul 2025375 AMAQI
27th Jul 2025376 AMAQI
27th Jul 2025387 AMAQI
27th Jul 2025378 AMAQI
27th Jul 2025339 AMAQI
27th Jul 20253710 AMAQI
27th Jul 20254311 AMAQI
27th Jul 20253412 PMAQI
27th Jul 2025311 PMAQI
27th Jul 2025302 PMAQI
27th Jul 2025343 PMAQI
27th Jul 2025334 PMAQI
27th Jul 2025265 PMAQI
27th Jul 2025276 PMAQI
27th Jul 2025297 PMAQI
27th Jul 2025318 PMAQI
27th Jul 2025319 PMAQI
27th Jul 20253010 PMAQI
27th Jul 20253011 PMAQI
28th Jul 20252912 AMAQI
28th Jul 2025331 AMAQI
28th Jul 2025362 AMAQI
28th Jul 2025373 AMAQI

29°C27/32°C

28th Jul 2025364 AMAQI
28th Jul 2025365 AMAQI
28th Jul 2025366 AMAQI
28th Jul 2025367 AMAQI
28th Jul 2025368 AMAQI
28th Jul 2025289 AMAQI
28th Jul 20253210 AMAQI
28th Jul 20253911 AMAQI
28th Jul 20254112 PMAQI
28th Jul 2025451 PMAQI
28th Jul 2025522 PMAQI
28th Jul 2025543 PMAQI
28th Jul 2025544 PMAQI
28th Jul 2025465 PMAQI
28th Jul 2025376 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025348 PMAQI
28th Jul 2025369 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253411 PMAQI
29th Jul 20253212 AMAQI
29th Jul 2025311 AMAQI
29th Jul 2025332 AMAQI
29th Jul 2025343 AMAQI

29°C27/33°C

29th Jul 2025364 AMAQI
29th Jul 2025375 AMAQI
29th Jul 2025366 AMAQI
29th Jul 2025367 AMAQI
29th Jul 2025368 AMAQI
29th Jul 2025299 AMAQI
29th Jul 20253110 AMAQI
29th Jul 20253811 AMAQI
29th Jul 20254212 PMAQI
29th Jul 2025501 PMAQI
29th Jul 2025542 PMAQI
29th Jul 2025543 PMAQI
29th Jul 2025494 PMAQI
29th Jul 2025405 PMAQI
29th Jul 2025316 PMAQI
29th Jul 2025287 PMAQI
29th Jul 2025278 PMAQI
29th Jul 2025309 PMAQI
29th Jul 20252910 PMAQI
29th Jul 20252611 PMAQI
30th Jul 20252612 AMAQI
30th Jul 2025311 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025343 AMAQI

30°C26/35°C

30th Jul 2025354 AMAQI
30th Jul 2025365 AMAQI
30th Jul 2025366 AMAQI
30th Jul 2025377 AMAQI
30th Jul 2025378 AMAQI
30th Jul 2025229 AMAQI
30th Jul 20251910 AMAQI
30th Jul 20252211 AMAQI
30th Jul 20252612 PMAQI
30th Jul 2025251 PMAQI
30th Jul 2025342 PMAQI
30th Jul 2025303 PMAQI
30th Jul 2025294 PMAQI
30th Jul 2025285 PMAQI
30th Jul 2025286 PMAQI
30th Jul 2025347 PMAQI
30th Jul 2025378 PMAQI
30th Jul 2025369 PMAQI
30th Jul 20253510 PMAQI
30th Jul 20253311 PMAQI
31st Jul 20253312 AMAQI
31st Jul 2025331 AMAQI
31st Jul 2025332 AMAQI
31st Jul 2025333 AMAQI

29°C26/34°C

31st Jul 2025334 AMAQI
31st Jul 2025335 AMAQI
31st Jul 2025336 AMAQI
31st Jul 2025337 AMAQI
31st Jul 2025338 AMAQI
31st Jul 2025339 AMAQI
31st Jul 20253310 AMAQI
31st Jul 20254111 AMAQI
31st Jul 20254412 PMAQI
31st Jul 2025401 PMAQI
31st Jul 2025362 PMAQI
31st Jul 2025253 PMAQI
31st Jul 2025264 PMAQI
31st Jul 2025285 PMAQI
31st Jul 2025236 PMAQI
31st Jul 2025227 PMAQI
31st Jul 2025268 PMAQI
31st Jul 2025289 PMAQI
31st Jul 20253010 PMAQI
31st Jul 20252511 PMAQI
1st Aug 20252612 AMAQI
1st Aug 2025281 AMAQI
1st Aug 2025332 AMAQI
1st Aug 2025343 AMAQI

28°C25/32°C

1st Aug 2025344 AMAQI
1st Aug 2025345 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025347 AMAQI
1st Aug 2025358 AMAQI
1st Aug 2025329 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20253711 AMAQI
1st Aug 20254012 PMAQI
1st Aug 2025401 PMAQI
1st Aug 2025382 PMAQI
1st Aug 2025323 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025315 PMAQI
1st Aug 2025406 PMAQI
1st Aug 2025257 PMAQI
1st Aug 2025288 PMAQI
1st Aug 2025299 PMAQI
1st Aug 20253110 PMAQI
1st Aug 20252811 PMAQI
2nd Aug 20252812 AMAQI
2nd Aug 2025291 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025363 AMAQI

28°C25/31°C

2nd Aug 2025364 AMAQI
2nd Aug 2025375 AMAQI
2nd Aug 2025386 AMAQI
2nd Aug 2025377 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025349 AMAQI
2nd Aug 20253210 AMAQI
2nd Aug 20254611 AMAQI
2nd Aug 20253912 PMAQI
2nd Aug 2025471 PMAQI
2nd Aug 2025612 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025534 PMAQI
2nd Aug 2025485 PMAQI
2nd Aug 2025546 PMAQI
2nd Aug 2025567 PMAQI
2nd Aug 2025418 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253510 PMAQI
2nd Aug 20254011 PMAQI
3rd Aug 20253312 AMAQI
3rd Aug 2025341 AMAQI
3rd Aug 2025362 AMAQI
3rd Aug 2025363 AMAQI

29°C26/33°C

3rd Aug 2025404 AMAQI
3rd Aug 2025395 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025499 AMAQI
3rd Aug 20255710 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20255912 PMAQI
3rd Aug 2025511 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025533 PMAQI
3rd Aug 2025464 PMAQI
3rd Aug 2025505 PMAQI
3rd Aug 2025526 PMAQI
3rd Aug 2025447 PMAQI
3rd Aug 2025458 PMAQI
3rd Aug 2025439 PMAQI
3rd Aug 20254410 PMAQI
3rd Aug 20254011 PMAQI
4th Aug 20253712 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI

30°C27/35°C

4th Aug 2025404 AMAQI
4th Aug 2025425 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025427 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025629 AMAQI
4th Aug 20257310 AMAQI
4th Aug 20258011 AMAQI
4th Aug 20258212 PMAQI
4th Aug 2025901 PMAQI
4th Aug 2025942 PMAQI
4th Aug 2025873 PMAQI
4th Aug 2025884 PMAQI
4th Aug 2025925 PMAQI
4th Aug 2025926 PMAQI
4th Aug 2025767 PMAQI
4th Aug 2025728 PMAQI
4th Aug 2025609 PMAQI
4th Aug 20255710 PMAQI
4th Aug 20255011 PMAQI
5th Aug 20255812 AMAQI
5th Aug 2025461 AMAQI
5th Aug 2025412 AMAQI
5th Aug 2025403 AMAQI

30°C28/33°C

5th Aug 2025504 AMAQI
5th Aug 2025545 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025517 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025599 AMAQI
5th Aug 20256210 AMAQI
5th Aug 20256011 AMAQI
5th Aug 20256112 PMAQI
5th Aug 2025581 PMAQI
5th Aug 2025532 PMAQI
5th Aug 2025543 PMAQI
5th Aug 2025624 PMAQI
5th Aug 2025545 PMAQI
5th Aug 2025476 PMAQI
5th Aug 2025477 PMAQI
5th Aug 2025468 PMAQI
5th Aug 2025469 PMAQI
5th Aug 20254610 PMAQI
5th Aug 20254411 PMAQI
6th Aug 20254612 AMAQI
6th Aug 2025481 AMAQI
6th Aug 2025502 AMAQI
6th Aug 2025483 AMAQI

31°C28/34°C

6th Aug 2025524 AMAQI
6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025459 AMAQI
6th Aug 20254810 AMAQI
6th Aug 20254711 AMAQI
6th Aug 20255112 PMAQI
6th Aug 2025551 PMAQI
6th Aug 2025582 PMAQI
6th Aug 2025543 PMAQI
6th Aug 2025544 PMAQI
6th Aug 2025575 PMAQI
6th Aug 2025566 PMAQI
6th Aug 2025607 PMAQI
6th Aug 2025548 PMAQI
6th Aug 2025499 PMAQI
6th Aug 20255110 PMAQI
6th Aug 20254811 PMAQI
7th Aug 20254812 AMAQI
7th Aug 2025481 AMAQI
7th Aug 2025522 AMAQI
7th Aug 2025503 AMAQI

31°C28/35°C

7th Aug 2025524 AMAQI
7th Aug 2025515 AMAQI
7th Aug 2025526 AMAQI
7th Aug 2025467 AMAQI
7th Aug 2025508 AMAQI
7th Aug 2025489 AMAQI
7th Aug 20254710 AMAQI
7th Aug 20255011 AMAQI
7th Aug 20254012 PMAQI
7th Aug 2025361 PMAQI
7th Aug 2025342 PMAQI
7th Aug 2025463 PMAQI
7th Aug 2025594 PMAQI
7th Aug 2025655 PMAQI
7th Aug 2025626 PMAQI
7th Aug 2025557 PMAQI
7th Aug 2025538 PMAQI
7th Aug 2025539 PMAQI
7th Aug 20255210 PMAQI
7th Aug 20255111 PMAQI
8th Aug 20255212 AMAQI
8th Aug 2025511 AMAQI
8th Aug 2025492 AMAQI
8th Aug 2025493 AMAQI

31°C28/33°C

8th Aug 2025484 AMAQI
8th Aug 2025485 AMAQI
8th Aug 2025486 AMAQI
8th Aug 2025497 AMAQI
8th Aug 2025488 AMAQI
8th Aug 2025369 AMAQI
8th Aug 20253410 AMAQI
8th Aug 20253711 AMAQI
8th Aug 20253612 PMAQI
8th Aug 2025451 PMAQI
8th Aug 2025562 PMAQI
8th Aug 2025603 PMAQI
8th Aug 2025544 PMAQI
8th Aug 2025525 PMAQI
8th Aug 2025556 PMAQI
8th Aug 2025527 PMAQI
8th Aug 2025528 PMAQI
8th Aug 2025509 PMAQI
8th Aug 20254610 PMAQI
8th Aug 20254311 PMAQI
9th Aug 20254212 AMAQI
9th Aug 2025461 AMAQI
9th Aug 2025502 AMAQI
9th Aug 2025513 AMAQI

29°C25/33°C

9th Aug 2025504 AMAQI
9th Aug 2025505 AMAQI
9th Aug 2025506 AMAQI
9th Aug 2025507 AMAQI
9th Aug 2025498 AMAQI
9th Aug 2025389 AMAQI
9th Aug 20253310 AMAQI
9th Aug 20253611 AMAQI
9th Aug 20254012 PMAQI
9th Aug 2025461 PMAQI
9th Aug 2025532 PMAQI
9th Aug 2025553 PMAQI
9th Aug 2025564 PMAQI
9th Aug 2025565 PMAQI
9th Aug 2025606 PMAQI
9th Aug 2025627 PMAQI
9th Aug 2025608 PMAQI
9th Aug 2025559 PMAQI
9th Aug 20255410 PMAQI
9th Aug 20255411 PMAQI
10th Aug 20255212 AMAQI
10th Aug 2025501 AMAQI
10th Aug 2025482 AMAQI
10th Aug 2025483 AMAQI

28°C25/32°C

10th Aug 2025484 AMAQI
4 AM
10th Aug 2025485 AMAQI
10th Aug 2025486 AMAQI
10th Aug 2025487 AMAQI
10th Aug 2025488 AMAQI
10th Aug 2025399 AMAQI
10th Aug 20253210 AMAQI
10th Aug 20254111 AMAQI
11 AM
10th Aug 20253512 PMAQI
10th Aug 2025281 PMAQI
10th Aug 2025302 PMAQI
10th Aug 2025273 PMAQI
6 PM
11 PM
3 AM

--°C/°C

Day time
Avg. Highest Time
4 AM - 8 AM

45AQI

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

36AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 45), while the lowest AQI was between 9 AM to 10 AM (Avg. 36).
Night time
Avg. Highest Time
12 AM - 3 AM

43AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 11 PM

40AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 43), while the lowest AQI was between 7 PM to 11 PM (Avg. 40).

2025 Days Vs Air Quality

Koto, Shibuya, Tokyo, Japan

2025

94%

208

6%

13

Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)

Good
208 Days
Moderate
13 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 94%

Health Risk Level:

Very Low

In 2025, 94% of 222 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Koto, Shibuya, Tokyo, Japan

AQI levels in 2025

AQI
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.

1st January 2025
27AQI
2nd January 2025
26AQI
3rd January 2025
24AQI
4th January 2025
25AQI
5th January 2025
25AQI
6th January 2025
31AQI
7th January 2025
26AQI
8th January 2025
27AQI
9th January 2025
25AQI
10th January 2025
25AQI
11th January 2025
24AQI
12th January 2025
26AQI
13th January 2025
28AQI
14th January 2025
27AQI
15th January 2025
31AQI
16th January 2025
25AQI
17th January 2025
28AQI
18th January 2025
26AQI
19th January 2025
33AQI
20th January 2025
32AQI
21st January 2025
33AQI
22nd January 2025
33AQI
23rd January 2025
34AQI
24th January 2025
37AQI
25th January 2025
34AQI
26th January 2025
32AQI
27th January 2025
25AQI
28th January 2025
31AQI
29th January 2025
26AQI
30th January 2025
27AQI
31st January 2025
26AQI
1st February 2025
28AQI
2nd February 2025
30AQI
3rd February 2025
26AQI
4th February 2025
30AQI
5th February 2025
27AQI
6th February 2025
27AQI
7th February 2025
27AQI
8th February 2025
29AQI
9th February 2025
29AQI
10th February 2025
25AQI
11th February 2025
31AQI
12th February 2025
27AQI
13th February 2025
31AQI
14th February 2025
27AQI
15th February 2025
30AQI
16th February 2025
33AQI
17th February 2025
33AQI
18th February 2025
30AQI
19th February 2025
30AQI
20th February 2025
30AQI
21st February 2025
29AQI
22nd February 2025
31AQI
23rd February 2025
32AQI
24th February 2025
33AQI
25th February 2025
31AQI
26th February 2025
34AQI
27th February 2025
35AQI
28th February 2025
39AQI
1st March 2025
44AQI
2nd March 2025
47AQI
3rd March 2025
35AQI
4th March 2025
33AQI
5th March 2025
24AQI
6th March 2025
30AQI
7th March 2025
31AQI
8th March 2025
33AQI
9th March 2025
35AQI
10th March 2025
33AQI
11th March 2025
30AQI
12th March 2025
36AQI
13th March 2025
33AQI
14th March 2025
28AQI
15th March 2025
22AQI
16th March 2025
19AQI
17th March 2025
16AQI
18th March 2025
17AQI
19th March 2025
14AQI
20th March 2025
16AQI
21st March 2025
25AQI
22nd March 2025
26AQI
23rd March 2025
28AQI
24th March 2025
26AQI
25th March 2025
46AQI
26th March 2025
62AQI
27th March 2025
58AQI
28th March 2025
39AQI
29th March 2025
31AQI
30th March 2025
41AQI
31st March 2025
31AQI
1st April 2025
25AQI
2nd April 2025
21AQI
3rd April 2025
18AQI
4th April 2025
17AQI
5th April 2025
18AQI
6th April 2025
15AQI
7th April 2025
17AQI
8th April 2025
18AQI
9th April 2025
18AQI
10th April 2025
24AQI
11th April 2025
23AQI
12th April 2025
21AQI
13th April 2025
19AQI
14th April 2025
24AQI
15th April 2025
20AQI
16th April 2025
19AQI
17th April 2025
25AQI
18th April 2025
29AQI
19th April 2025
35AQI
20th April 2025
26AQI
21st April 2025
24AQI
22nd April 2025
23AQI
23rd April 2025
16AQI
24th April 2025
20AQI
25th April 2025
19AQI
26th April 2025
20AQI
27th April 2025
21AQI
28th April 2025
21AQI
29th April 2025
15AQI
30th April 2025
19AQI
1st May 2025
19AQI
2nd May 2025
17AQI
3rd May 2025
18AQI
4th May 2025
26AQI
5th May 2025
22AQI
6th May 2025
19AQI
7th May 2025
16AQI
8th May 2025
18AQI
9th May 2025
18AQI
10th May 2025
15AQI
11th May 2025
19AQI
12th May 2025
16AQI
13th May 2025
21AQI
14th May 2025
19AQI
15th May 2025
22AQI
16th May 2025
22AQI
17th May 2025
20AQI
18th May 2025
28AQI
19th May 2025
27AQI
20th May 2025
40AQI
21st May 2025
32AQI
22nd May 2025
28AQI
23rd May 2025
24AQI
24th May 2025
23AQI
25th May 2025
18AQI
26th May 2025
18AQI
27th May 2025
17AQI
28th May 2025
16AQI
29th May 2025
18AQI
30th May 2025
16AQI
31st May 2025
13AQI
1st June 2025
15AQI
2nd June 2025
20AQI
3rd June 2025
19AQI
4th June 2025
19AQI
5th June 2025
24AQI
6th June 2025
31AQI
7th June 2025
27AQI
8th June 2025
35AQI
9th June 2025
26AQI
10th June 2025
25AQI
11th June 2025
24AQI
12th June 2025
27AQI
13th June 2025
26AQI
14th June 2025
22AQI
15th June 2025
25AQI
16th June 2025
24AQI
17th June 2025
34AQI
18th June 2025
28AQI
19th June 2025
29AQI
20th June 2025
26AQI
21st June 2025
21AQI
22nd June 2025
12AQI
23rd June 2025
15AQI
24th June 2025
16AQI
25th June 2025
16AQI
26th June 2025
17AQI
27th June 2025
21AQI
28th June 2025
19AQI
29th June 2025
23AQI
30th June 2025
38AQI
1st July 2025
39AQI
2nd July 2025
44AQI
3rd July 2025
43AQI
4th July 2025
45AQI
5th July 2025
52AQI
6th July 2025
67AQI
7th July 2025
81AQI
8th July 2025
81AQI
9th July 2025
78AQI
10th July 2025
57AQI
11th July 2025
48AQI
12th July 2025
51AQI
13th July 2025
51AQI
14th July 2025
42AQI
15th July 2025
42AQI
16th July 2025
40AQI
17th July 2025
46AQI
18th July 2025
38AQI
19th July 2025
35AQI
20th July 2025
34AQI
21st July 2025
35AQI
22nd July 2025
35AQI
23rd July 2025
37AQI
24th July 2025
40AQI
25th July 2025
38AQI
26th July 2025
35AQI
27th July 2025
33AQI
28th July 2025
38AQI
29th July 2025
35AQI
30th July 2025
31AQI
31st July 2025
31AQI
1st August 2025
33AQI
2nd August 2025
41AQI
3rd August 2025
45AQI
4th August 2025
62AQI
5th August 2025
51AQI
6th August 2025
52AQI
7th August 2025
50AQI
8th August 2025
48AQI
9th August 2025
47AQI

28AQI

30AQI

32AQI

21AQI

21AQI

23AQI

45AQI

48AQI


No. of days

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

202530AQI

31
28
29
2
30
31
30
23
8
6
3
208
13

Highest AQI recorded in

August

48AQI


Lowest AQI recorded in

May

21AQI


202431AQI

30
1
29
31
28
2
31
30
27
4
31
30
31
27
3
31
356
10

Highest AQI recorded in

April

38AQI


Lowest AQI recorded in

September

24AQI


202330AQI

31
28
27
4
25
5
29
2
28
2
31
31
30
31
28
1
31
350
14

Highest AQI recorded in

April

41AQI


Lowest AQI recorded in

August

17AQI


202233AQI

30
1
20
1
30
1
29
1
26
5
22
8
21
2
1
1
29
31
30
31
300
20

Highest AQI recorded in

August

59AQI


Lowest AQI recorded in

December

27AQI


202136AQI

18
5
30
29
2
25
5
22
9
124
21

Highest AQI recorded in

December

41AQI


Lowest AQI recorded in

September

33AQI


202016AQI

13
21
18
30
31
31
8
152

Highest AQI recorded in

August

24AQI


Lowest AQI recorded in

April

10AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2021(Avg.)
36AQI
Least Polluted Year Recorded
2020(Avg.)
16AQI


Koto's annual 2025 AQI (30) shows an average percentage change of 9.7% (worsened AQI) compared to previous years: 2020 (16), 2021 (36), 2022 (33), 2023 (30), 2024 (31).