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HistoryAQIPM2.5PM10COSO2NO2O3

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+

October Air Quality Analysis

Koto, Shibuya, Tokyo, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
31st Oct 2021
65AQI
Lowest AQI recorded on
13th Oct 2021
18AQI

Same Day Analysis (14th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 59 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 14th Oct - 15th Oct 2025

Koto, Shibuya, Tokyo, Japan

AQI
Day
Night
.

5 AM14th Oct 2025

5 PM

4 AM15th Oct 2025

Day time
Avg. Highest Time
12PM14th Oct

65AQI

Avg. Lowest Time
5PM14th Oct

60AQI

Night time
Avg. Highest Time
6PM14th Oct

60AQI

Avg. Lowest Time
4AM15th Oct

40AQI

In the last 24 hours,

Koto's AQI reached its highest point of 65 at 12 PM during the Day, while the lowest point, 40, was recorded at 4 AM during the Night between 14th Oct and 15th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Koto, Shibuya, Tokyo, Japan

SepOct
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th
Day
Night
15th Sep 2025325 AMAQI
15th Sep 2025336 AMAQI
15th Sep 2025347 AMAQI
15th Sep 2025348 AMAQI
15th Sep 2025449 AMAQI
15th Sep 20254210 AMAQI
15th Sep 20254411 AMAQI
15th Sep 20254012 PMAQI
15th Sep 2025341 PMAQI
15th Sep 2025362 PMAQI
15th Sep 2025363 PMAQI
15th Sep 2025384 PMAQI
15th Sep 2025485 PMAQI
15th Sep 2025456 PMAQI
15th Sep 2025427 PMAQI
15th Sep 2025328 PMAQI
15th Sep 2025339 PMAQI
15th Sep 20253610 PMAQI
15th Sep 20253711 PMAQI
16th Sep 20253412 AMAQI
16th Sep 2025341 AMAQI
16th Sep 2025342 AMAQI
16th Sep 2025343 AMAQI
16th Sep 2025354 AMAQI

28°C26/31°C

16th Sep 2025365 AMAQI
16th Sep 2025366 AMAQI
16th Sep 2025367 AMAQI
16th Sep 2025368 AMAQI
16th Sep 2025409 AMAQI
16th Sep 20254210 AMAQI
16th Sep 20254811 AMAQI
16th Sep 20255312 PMAQI
16th Sep 2025521 PMAQI
16th Sep 2025582 PMAQI
16th Sep 2025583 PMAQI
16th Sep 2025524 PMAQI
16th Sep 2025405 PMAQI
16th Sep 2025326 PMAQI
16th Sep 2025277 PMAQI
16th Sep 2025298 PMAQI
16th Sep 2025329 PMAQI
16th Sep 20253110 PMAQI
16th Sep 20253211 PMAQI
17th Sep 20253112 AMAQI
17th Sep 2025341 AMAQI
17th Sep 2025342 AMAQI
17th Sep 2025343 AMAQI
17th Sep 2025364 AMAQI

28°C26/31°C

17th Sep 2025395 AMAQI
17th Sep 2025396 AMAQI
17th Sep 2025387 AMAQI
17th Sep 2025388 AMAQI
17th Sep 2025509 AMAQI
17th Sep 20255610 AMAQI
17th Sep 20255611 AMAQI
17th Sep 20255612 PMAQI
17th Sep 2025551 PMAQI
17th Sep 2025582 PMAQI
17th Sep 2025583 PMAQI
17th Sep 2025564 PMAQI
17th Sep 2025575 PMAQI
17th Sep 2025536 PMAQI
17th Sep 2025607 PMAQI
17th Sep 2025528 PMAQI
17th Sep 2025539 PMAQI
17th Sep 20256010 PMAQI
17th Sep 20255811 PMAQI
18th Sep 20255812 AMAQI
18th Sep 2025511 AMAQI
18th Sep 2025352 AMAQI
18th Sep 2025353 AMAQI
18th Sep 2025384 AMAQI

29°C27/32°C

18th Sep 2025415 AMAQI
18th Sep 2025416 AMAQI
18th Sep 2025417 AMAQI
18th Sep 2025418 AMAQI
18th Sep 2025609 AMAQI
18th Sep 20257110 AMAQI
18th Sep 20257011 AMAQI
18th Sep 20257212 PMAQI
18th Sep 2025731 PMAQI
18th Sep 2025702 PMAQI
18th Sep 2025713 PMAQI
18th Sep 2025754 PMAQI
18th Sep 2025535 PMAQI
18th Sep 2025226 PMAQI
18th Sep 2025207 PMAQI
18th Sep 2025238 PMAQI
18th Sep 2025329 PMAQI
18th Sep 20253410 PMAQI
18th Sep 20253311 PMAQI
19th Sep 20253212 AMAQI
19th Sep 2025371 AMAQI
19th Sep 2025452 AMAQI
19th Sep 2025463 AMAQI
19th Sep 2025494 AMAQI

29°C24/33°C

19th Sep 2025545 AMAQI
19th Sep 2025546 AMAQI
19th Sep 2025537 AMAQI
19th Sep 2025548 AMAQI
19th Sep 2025249 AMAQI
19th Sep 20251510 AMAQI
19th Sep 20252111 AMAQI
19th Sep 20252112 PMAQI
19th Sep 2025261 PMAQI
19th Sep 2025242 PMAQI
19th Sep 2025313 PMAQI
19th Sep 2025314 PMAQI
19th Sep 2025275 PMAQI
19th Sep 2025246 PMAQI
19th Sep 2025247 PMAQI
19th Sep 2025298 PMAQI
19th Sep 2025359 PMAQI
19th Sep 20253510 PMAQI
19th Sep 20253611 PMAQI
20th Sep 20253512 AMAQI
20th Sep 2025381 AMAQI
20th Sep 2025462 AMAQI
20th Sep 2025463 AMAQI
20th Sep 2025444 AMAQI

22°C21/23°C

20th Sep 2025415 AMAQI
20th Sep 2025416 AMAQI
20th Sep 2025417 AMAQI
20th Sep 2025428 AMAQI
20th Sep 2025219 AMAQI
20th Sep 20251610 AMAQI
20th Sep 20251911 AMAQI
20th Sep 20252412 PMAQI
20th Sep 2025321 PMAQI
20th Sep 2025322 PMAQI
20th Sep 2025393 PMAQI
20th Sep 2025384 PMAQI
20th Sep 2025375 PMAQI
20th Sep 2025366 PMAQI
20th Sep 2025407 PMAQI
20th Sep 2025378 PMAQI
20th Sep 2025339 PMAQI
20th Sep 20253310 PMAQI
20th Sep 20253211 PMAQI
21st Sep 20253212 AMAQI
21st Sep 2025361 AMAQI
21st Sep 2025402 AMAQI
21st Sep 2025403 AMAQI
21st Sep 2025394 AMAQI

25°C23/27°C

21st Sep 2025375 AMAQI
21st Sep 2025366 AMAQI
21st Sep 2025377 AMAQI
21st Sep 2025388 AMAQI
21st Sep 2025229 AMAQI
21st Sep 20251610 AMAQI
21st Sep 20251611 AMAQI
21st Sep 20251812 PMAQI
21st Sep 2025181 PMAQI
21st Sep 2025162 PMAQI
21st Sep 2025153 PMAQI
21st Sep 2025154 PMAQI
21st Sep 2025145 PMAQI
21st Sep 2025166 PMAQI
21st Sep 2025187 PMAQI
21st Sep 2025248 PMAQI
21st Sep 2025289 PMAQI
21st Sep 20253010 PMAQI
21st Sep 20252811 PMAQI
22nd Sep 20252612 AMAQI
22nd Sep 2025311 AMAQI
22nd Sep 2025362 AMAQI
22nd Sep 2025363 AMAQI
22nd Sep 2025354 AMAQI

26°C22/31°C

22nd Sep 2025345 AMAQI
22nd Sep 2025336 AMAQI
22nd Sep 2025337 AMAQI
22nd Sep 2025338 AMAQI
22nd Sep 2025229 AMAQI
22nd Sep 20252010 AMAQI
22nd Sep 20252211 AMAQI
22nd Sep 20252212 PMAQI
22nd Sep 2025221 PMAQI
22nd Sep 2025242 PMAQI
22nd Sep 2025263 PMAQI
22nd Sep 2025234 PMAQI
22nd Sep 2025215 PMAQI
22nd Sep 2025206 PMAQI
22nd Sep 2025197 PMAQI
22nd Sep 2025228 PMAQI
22nd Sep 2025269 PMAQI
22nd Sep 20252710 PMAQI
22nd Sep 20252811 PMAQI
23rd Sep 20252812 AMAQI
23rd Sep 2025311 AMAQI
23rd Sep 2025332 AMAQI
23rd Sep 2025333 AMAQI
23rd Sep 2025324 AMAQI

24°C22/26°C

23rd Sep 2025325 AMAQI
23rd Sep 2025316 AMAQI
23rd Sep 2025307 AMAQI
23rd Sep 2025318 AMAQI
23rd Sep 2025259 AMAQI
23rd Sep 20252510 AMAQI
23rd Sep 20252511 AMAQI
23rd Sep 20252512 PMAQI
23rd Sep 2025251 PMAQI
23rd Sep 2025242 PMAQI
23rd Sep 2025223 PMAQI
23rd Sep 2025194 PMAQI
23rd Sep 2025225 PMAQI
23rd Sep 2025216 PMAQI
23rd Sep 2025187 PMAQI
23rd Sep 2025238 PMAQI
23rd Sep 2025289 PMAQI
23rd Sep 20252710 PMAQI
23rd Sep 20252811 PMAQI
24th Sep 20252712 AMAQI
24th Sep 2025291 AMAQI
24th Sep 2025312 AMAQI
24th Sep 2025313 AMAQI
24th Sep 2025304 AMAQI

23°C20/26°C

24th Sep 2025285 AMAQI
24th Sep 2025296 AMAQI
24th Sep 2025297 AMAQI
24th Sep 2025298 AMAQI
24th Sep 2025249 AMAQI
24th Sep 20252110 AMAQI
24th Sep 20252411 AMAQI
24th Sep 20252512 PMAQI
24th Sep 2025241 PMAQI
24th Sep 2025282 PMAQI
24th Sep 2025303 PMAQI
24th Sep 2025364 PMAQI
24th Sep 2025315 PMAQI
24th Sep 2025206 PMAQI
24th Sep 2025197 PMAQI
24th Sep 2025228 PMAQI
24th Sep 2025279 PMAQI
24th Sep 20252710 PMAQI
24th Sep 20252611 PMAQI
25th Sep 20252512 AMAQI
25th Sep 2025261 AMAQI
25th Sep 2025282 AMAQI
25th Sep 2025283 AMAQI
25th Sep 2025284 AMAQI

23°C21/27°C

25th Sep 2025285 AMAQI
25th Sep 2025276 AMAQI
25th Sep 2025287 AMAQI
25th Sep 2025288 AMAQI
25th Sep 2025329 AMAQI
25th Sep 20253510 AMAQI
25th Sep 20254011 AMAQI
25th Sep 20255012 PMAQI
25th Sep 2025381 PMAQI
25th Sep 2025312 PMAQI
25th Sep 2025373 PMAQI
25th Sep 2025344 PMAQI
25th Sep 2025305 PMAQI
25th Sep 2025296 PMAQI
25th Sep 2025327 PMAQI
25th Sep 2025288 PMAQI
25th Sep 2025229 PMAQI
25th Sep 20253110 PMAQI
25th Sep 20253311 PMAQI
26th Sep 20253112 AMAQI
26th Sep 2025281 AMAQI
26th Sep 2025332 AMAQI
26th Sep 2025393 AMAQI
26th Sep 2025414 AMAQI

24°C22/27°C

26th Sep 2025405 AMAQI
26th Sep 2025256 AMAQI
26th Sep 2025337 AMAQI
26th Sep 2025448 AMAQI
26th Sep 2025459 AMAQI
26th Sep 20255410 AMAQI
26th Sep 20255811 AMAQI
26th Sep 20256512 PMAQI
26th Sep 2025671 PMAQI
26th Sep 2025712 PMAQI
26th Sep 2025763 PMAQI
26th Sep 2025804 PMAQI
26th Sep 2025855 PMAQI
26th Sep 2025846 PMAQI
26th Sep 2025517 PMAQI
26th Sep 2025508 PMAQI
26th Sep 2025589 PMAQI
26th Sep 20256010 PMAQI
26th Sep 20255511 PMAQI
27th Sep 20254612 AMAQI
27th Sep 2025491 AMAQI
27th Sep 2025412 AMAQI
27th Sep 2025353 AMAQI
27th Sep 2025304 AMAQI

27°C24/31°C

27th Sep 2025265 AMAQI
27th Sep 2025236 AMAQI
27th Sep 2025247 AMAQI
27th Sep 2025278 AMAQI
27th Sep 2025329 AMAQI
27th Sep 20253310 AMAQI
27th Sep 20253311 AMAQI
27th Sep 20253512 PMAQI
27th Sep 2025351 PMAQI
27th Sep 2025422 PMAQI
27th Sep 2025473 PMAQI
27th Sep 2025424 PMAQI
27th Sep 2025255 PMAQI
27th Sep 2025276 PMAQI
27th Sep 2025327 PMAQI
27th Sep 2025298 PMAQI
27th Sep 2025289 PMAQI
27th Sep 20252810 PMAQI
27th Sep 20252811 PMAQI
28th Sep 20252812 AMAQI
28th Sep 2025321 AMAQI
28th Sep 2025332 AMAQI
28th Sep 2025303 AMAQI
28th Sep 2025284 AMAQI

25°C23/27°C

28th Sep 2025285 AMAQI
28th Sep 2025326 AMAQI
28th Sep 2025387 AMAQI
28th Sep 2025398 AMAQI
28th Sep 2025399 AMAQI
28th Sep 20254810 AMAQI
28th Sep 20254511 AMAQI
28th Sep 20254212 PMAQI
28th Sep 2025391 PMAQI
28th Sep 2025432 PMAQI
28th Sep 2025493 PMAQI
28th Sep 2025434 PMAQI
28th Sep 2025285 PMAQI
28th Sep 2025296 PMAQI
28th Sep 2025297 PMAQI
28th Sep 2025328 PMAQI
28th Sep 2025249 PMAQI
28th Sep 20252310 PMAQI
28th Sep 20253111 PMAQI
29th Sep 20252912 AMAQI
29th Sep 2025281 AMAQI
29th Sep 2025322 AMAQI
29th Sep 2025203 AMAQI
29th Sep 2025234 AMAQI

25°C23/27°C

29th Sep 2025265 AMAQI
29th Sep 2025316 AMAQI
29th Sep 2025347 AMAQI
29th Sep 2025328 AMAQI
29th Sep 2025319 AMAQI
29th Sep 20253810 AMAQI
29th Sep 20254311 AMAQI
29th Sep 20254412 PMAQI
29th Sep 2025481 PMAQI
29th Sep 2025552 PMAQI
29th Sep 2025533 PMAQI
29th Sep 2025424 PMAQI
29th Sep 2025345 PMAQI
29th Sep 2025336 PMAQI
29th Sep 2025387 PMAQI
29th Sep 2025438 PMAQI
29th Sep 2025369 PMAQI
29th Sep 20253010 PMAQI
29th Sep 20251911 PMAQI
30th Sep 20251612 AMAQI
30th Sep 2025151 AMAQI
30th Sep 2025232 AMAQI
30th Sep 2025163 AMAQI
30th Sep 2025144 AMAQI

26°C24/30°C

30th Sep 2025245 AMAQI
30th Sep 2025236 AMAQI
30th Sep 2025177 AMAQI
30th Sep 2025208 AMAQI
30th Sep 2025169 AMAQI
30th Sep 20251910 AMAQI
30th Sep 20251911 AMAQI
30th Sep 20252112 PMAQI
30th Sep 2025281 PMAQI
30th Sep 2025372 PMAQI
30th Sep 2025323 PMAQI
30th Sep 2025354 PMAQI
30th Sep 2025335 PMAQI
30th Sep 2025296 PMAQI
30th Sep 2025377 PMAQI
30th Sep 2025298 PMAQI
30th Sep 2025309 PMAQI
30th Sep 20253110 PMAQI
30th Sep 20253011 PMAQI
1st Oct 20253312 AMAQI
1st Oct 2025331 AMAQI
1st Oct 2025362 AMAQI
1st Oct 2025333 AMAQI
1st Oct 2025314 AMAQI

24°C22/27°C

1st Oct 2025315 AMAQI
1st Oct 2025326 AMAQI
1st Oct 2025287 AMAQI
1st Oct 2025308 AMAQI
1st Oct 2025369 AMAQI
1st Oct 20252810 AMAQI
1st Oct 20252711 AMAQI
1st Oct 20253112 PMAQI
1st Oct 2025381 PMAQI
1st Oct 2025382 PMAQI
1st Oct 2025393 PMAQI
1st Oct 2025394 PMAQI
1st Oct 2025395 PMAQI
1st Oct 2025386 PMAQI
1st Oct 2025397 PMAQI
1st Oct 2025508 PMAQI
1st Oct 2025459 PMAQI
1st Oct 20254610 PMAQI
1st Oct 20254511 PMAQI
2nd Oct 20254612 AMAQI
2nd Oct 2025481 AMAQI
2nd Oct 2025492 AMAQI
2nd Oct 2025493 AMAQI
2nd Oct 2025524 AMAQI

21°C20/21°C

2nd Oct 2025565 AMAQI
2nd Oct 2025566 AMAQI
2nd Oct 2025547 AMAQI
2nd Oct 2025578 AMAQI
2nd Oct 2025579 AMAQI
2nd Oct 20256110 AMAQI
2nd Oct 20256411 AMAQI
2nd Oct 20256812 PMAQI
2nd Oct 2025571 PMAQI
2nd Oct 2025532 PMAQI
2nd Oct 2025573 PMAQI
2nd Oct 2025574 PMAQI
2nd Oct 2025585 PMAQI
2nd Oct 2025576 PMAQI
2nd Oct 2025567 PMAQI
2nd Oct 2025598 PMAQI
2nd Oct 2025689 PMAQI
2nd Oct 20256910 PMAQI
2nd Oct 20255911 PMAQI
3rd Oct 20255612 AMAQI
3rd Oct 2025601 AMAQI
3rd Oct 2025612 AMAQI
3rd Oct 2025583 AMAQI
3rd Oct 2025614 AMAQI

23°C20/27°C

3rd Oct 2025595 AMAQI
3rd Oct 2025596 AMAQI
3rd Oct 2025587 AMAQI
3rd Oct 2025578 AMAQI
3rd Oct 2025589 AMAQI
3rd Oct 20255610 AMAQI
3rd Oct 20255611 AMAQI
3rd Oct 20255512 PMAQI
3rd Oct 2025561 PMAQI
3rd Oct 2025592 PMAQI
3rd Oct 2025583 PMAQI
3rd Oct 2025584 PMAQI
3rd Oct 2025615 PMAQI
3rd Oct 2025646 PMAQI
3rd Oct 2025647 PMAQI
3rd Oct 2025538 PMAQI
3rd Oct 2025639 PMAQI
3rd Oct 20256410 PMAQI
3rd Oct 20256611 PMAQI
4th Oct 20256812 AMAQI
4th Oct 2025641 AMAQI
4th Oct 2025662 AMAQI
4th Oct 2025673 AMAQI
4th Oct 2025664 AMAQI

24°C22/26°C

4th Oct 2025625 AMAQI
4th Oct 2025636 AMAQI
4th Oct 2025637 AMAQI
4th Oct 2025668 AMAQI
4th Oct 2025669 AMAQI
4th Oct 20256710 AMAQI
4th Oct 20256511 AMAQI
4th Oct 20256312 PMAQI
4th Oct 2025661 PMAQI
4th Oct 2025662 PMAQI
4th Oct 2025703 PMAQI
4th Oct 2025644 PMAQI
4th Oct 2025525 PMAQI
4th Oct 2025576 PMAQI
4th Oct 2025567 PMAQI
4th Oct 2025578 PMAQI
4th Oct 2025589 PMAQI
4th Oct 20255910 PMAQI
4th Oct 20256111 PMAQI
5th Oct 20256512 AMAQI
5th Oct 2025671 AMAQI
5th Oct 2025682 AMAQI
5th Oct 2025653 AMAQI
5th Oct 2025614 AMAQI

23°C22/26°C

5th Oct 2025605 AMAQI
5th Oct 2025596 AMAQI
5th Oct 2025597 AMAQI
5th Oct 2025558 AMAQI
5th Oct 2025619 AMAQI
5th Oct 20255810 AMAQI
5th Oct 20255311 AMAQI
5th Oct 20255312 PMAQI
5th Oct 2025561 PMAQI
5th Oct 2025572 PMAQI
5th Oct 2025613 PMAQI
5th Oct 2025644 PMAQI
5th Oct 2025695 PMAQI
5th Oct 2025676 PMAQI
5th Oct 2025637 PMAQI
5th Oct 2025568 PMAQI
5th Oct 2025529 PMAQI
5th Oct 20255210 PMAQI
5th Oct 20255311 PMAQI
6th Oct 20255212 AMAQI
6th Oct 2025501 AMAQI
6th Oct 2025482 AMAQI
6th Oct 2025513 AMAQI
6th Oct 2025464 AMAQI

25°C22/28°C

6th Oct 2025455 AMAQI
6th Oct 2025486 AMAQI
6th Oct 2025487 AMAQI
6th Oct 2025598 AMAQI
6th Oct 2025609 AMAQI
6th Oct 20256110 AMAQI
6th Oct 20256211 AMAQI
6th Oct 20256012 PMAQI
6th Oct 2025581 PMAQI
6th Oct 2025612 PMAQI
6th Oct 2025613 PMAQI
6th Oct 2025624 PMAQI
6th Oct 2025605 PMAQI
6th Oct 2025586 PMAQI
6th Oct 2025567 PMAQI
6th Oct 2025568 PMAQI
6th Oct 2025569 PMAQI
6th Oct 20255710 PMAQI
6th Oct 20256011 PMAQI
7th Oct 20256112 AMAQI
7th Oct 2025641 AMAQI
7th Oct 2025642 AMAQI

24°C21/27°C

7th Oct 2025558 PMAQI
7th Oct 2025609 PMAQI
7th Oct 20256010 PMAQI
7th Oct 20255911 PMAQI
8th Oct 20256012 AMAQI
8th Oct 2025581 AMAQI
8th Oct 2025592 AMAQI
8th Oct 2025593 AMAQI
8th Oct 2025634 AMAQI

22°C21/23°C

8th Oct 2025585 AMAQI
8th Oct 2025596 AMAQI
8th Oct 2025587 AMAQI
8th Oct 2025608 AMAQI
8th Oct 2025599 AMAQI
8th Oct 20256010 AMAQI
8th Oct 20256011 AMAQI
8th Oct 20256212 PMAQI
8th Oct 2025611 PMAQI
8th Oct 2025632 PMAQI
8th Oct 2025643 PMAQI
8th Oct 2025684 PMAQI
8th Oct 2025685 PMAQI
8th Oct 2025676 PMAQI
8th Oct 2025647 PMAQI
8th Oct 2025688 PMAQI
8th Oct 2025699 PMAQI
8th Oct 20257110 PMAQI
8th Oct 20256911 PMAQI
9th Oct 20256612 AMAQI
9th Oct 2025661 AMAQI
9th Oct 2025662 AMAQI
9th Oct 2025623 AMAQI
9th Oct 2025614 AMAQI

24°C21/27°C

9th Oct 2025615 AMAQI
9th Oct 2025576 AMAQI
9th Oct 2025587 AMAQI
9th Oct 2025568 AMAQI
9th Oct 2025539 AMAQI
9th Oct 20255110 AMAQI
9th Oct 20255111 AMAQI
9th Oct 20255412 PMAQI
9th Oct 2025581 PMAQI
9th Oct 2025612 PMAQI
9th Oct 2025633 PMAQI
9th Oct 2025634 PMAQI
9th Oct 2025635 PMAQI
9th Oct 2025606 PMAQI
9th Oct 2025607 PMAQI
9th Oct 2025648 PMAQI
9th Oct 2025609 PMAQI
9th Oct 20255710 PMAQI
9th Oct 20255611 PMAQI
10th Oct 20255412 AMAQI
10th Oct 2025571 AMAQI
10th Oct 2025552 AMAQI
10th Oct 2025573 AMAQI
10th Oct 2025584 AMAQI

21°C19/22°C

10th Oct 2025555 AMAQI
10th Oct 2025576 AMAQI
10th Oct 2025567 AMAQI
10th Oct 2025578 AMAQI
10th Oct 2025579 AMAQI
10th Oct 20255710 AMAQI
10th Oct 20256111 AMAQI
10th Oct 20256112 PMAQI
10th Oct 2025611 PMAQI
10th Oct 2025582 PMAQI
10th Oct 2025613 PMAQI
10th Oct 2025624 PMAQI
10th Oct 2025645 PMAQI
10th Oct 2025666 PMAQI
10th Oct 2025677 PMAQI
10th Oct 2025688 PMAQI
10th Oct 2025709 PMAQI
10th Oct 20257010 PMAQI
10th Oct 20256811 PMAQI
11th Oct 20256512 AMAQI
11th Oct 2025661 AMAQI
11th Oct 2025662 AMAQI
11th Oct 2025683 AMAQI
11th Oct 2025664 AMAQI

20°C18/23°C

11th Oct 2025655 AMAQI
11th Oct 2025636 AMAQI
11th Oct 2025637 AMAQI
11th Oct 2025608 AMAQI
11th Oct 2025579 AMAQI
11th Oct 20255810 AMAQI
11th Oct 20255811 AMAQI
11th Oct 20255812 PMAQI
11th Oct 2025541 PMAQI
11th Oct 2025522 PMAQI
11th Oct 2025483 PMAQI
11th Oct 2025464 PMAQI
11th Oct 2025385 PMAQI
11th Oct 2025406 PMAQI
11th Oct 2025257 PMAQI
11th Oct 2025408 PMAQI
11th Oct 2025379 PMAQI
11th Oct 20251210 PMAQI
11th Oct 20252611 PMAQI
12th Oct 20254012 AMAQI
12th Oct 2025451 AMAQI
12th Oct 2025372 AMAQI
12th Oct 2025333 AMAQI
12th Oct 2025274 AMAQI

19°C18/20°C

12th Oct 2025225 AMAQI
12th Oct 2025256 AMAQI
12th Oct 2025247 AMAQI
12th Oct 2025328 AMAQI
12th Oct 2025389 AMAQI
12th Oct 20254010 AMAQI
12th Oct 20254511 AMAQI
12th Oct 20254412 PMAQI
12th Oct 2025411 PMAQI
12th Oct 2025442 PMAQI
12th Oct 2025543 PMAQI
12th Oct 2025564 PMAQI
12th Oct 2025595 PMAQI
12th Oct 2025626 PMAQI
12th Oct 2025667 PMAQI
12th Oct 2025668 PMAQI
12th Oct 2025649 PMAQI
12th Oct 20256310 PMAQI
12th Oct 20256211 PMAQI
13th Oct 20256412 AMAQI
13th Oct 2025691 AMAQI
13th Oct 2025682 AMAQI
13th Oct 2025673 AMAQI
13th Oct 2025674 AMAQI

21°C18/23°C

13th Oct 2025665 AMAQI
13th Oct 2025666 AMAQI
13th Oct 2025637 AMAQI
13th Oct 2025628 AMAQI
13th Oct 2025609 AMAQI
13th Oct 20256710 AMAQI
13th Oct 20257011 AMAQI
13th Oct 20256812 PMAQI
13th Oct 2025651 PMAQI
13th Oct 2025632 PMAQI
13th Oct 2025683 PMAQI
13th Oct 2025684 PMAQI
13th Oct 2025665 PMAQI
13th Oct 2025616 PMAQI
13th Oct 2025557 PMAQI
13th Oct 2025548 PMAQI
13th Oct 2025529 PMAQI
13th Oct 20255210 PMAQI
13th Oct 20255511 PMAQI
14th Oct 20255612 AMAQI
14th Oct 2025581 AMAQI
14th Oct 2025582 AMAQI
14th Oct 2025583 AMAQI
14th Oct 2025594 AMAQI

22°C20/24°C

14th Oct 2025605 AMAQI
14th Oct 2025606 AMAQI
14th Oct 2025607 AMAQI
14th Oct 2025608 AMAQI
14th Oct 2025609 AMAQI
14th Oct 20256010 AMAQI
14th Oct 20256111 AMAQI
14th Oct 20256512 PMAQI
14th Oct 2025651 PMAQI
14th Oct 2025642 PMAQI
14th Oct 2025623 PMAQI
14th Oct 2025624 PMAQI
14th Oct 2025605 PMAQI
14th Oct 2025606 PMAQI
14th Oct 2025597 PMAQI
14th Oct 2025568 PMAQI
14th Oct 2025529 PMAQI
14th Oct 20254310 PMAQI
14th Oct 20254611 PMAQI
15th Oct 20255212 AMAQI
15th Oct 2025481 AMAQI
15th Oct 2025532 AMAQI
15th Oct 2025563 AMAQI
15th Oct 2025404 AMAQI

19°C17/21°C

15th Oct 2025265 AMAQI
5 AM
15th Oct 2025256 AMAQI
15th Oct 2025307 AMAQI
15th Oct 2025428 AMAQI
15th Oct 2025399 AMAQI
15th Oct 20254310 AMAQI
15th Oct 20255411 AMAQI
11 AM
15th Oct 20255112 PMAQI
15th Oct 2025511 PMAQI
15th Oct 2025502 PMAQI
15th Oct 2025523 PMAQI
5 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
3 PM - 4 PM

50AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
5 AM - 7 AM

42AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 4 PM (Avg. 50), while the lowest AQI was between 5 AM to 7 AM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 2 AM

45AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM - 11 PM

44AQI

8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 45), while the lowest AQI was between 3 AM to 11 PM (Avg. 44).

2025 Days Vs Air Quality

Koto, Shibuya, Tokyo, Japan

2025

89%

256

11%

31

Total number of days with different AQI categories in last 288 days in 2025 (77 days remaining)

Good
256 Days
Moderate
31 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 89%

Health Risk Level:

Low

In 2025, 89% of 288 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

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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
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
50AQI
10th August 2025
40AQI
11th August 2025
41AQI
12th August 2025
37AQI
13th August 2025
33AQI
14th August 2025
34AQI
15th August 2025
34AQI
16th August 2025
34AQI
17th August 2025
38AQI
18th August 2025
42AQI
19th August 2025
44AQI
20th August 2025
47AQI
21st August 2025
50AQI
22nd August 2025
50AQI
23rd August 2025
47AQI
24th August 2025
54AQI
25th August 2025
54AQI
26th August 2025
52AQI
27th August 2025
50AQI
28th August 2025
46AQI
29th August 2025
51AQI
30th August 2025
55AQI
31st August 2025
53AQI
1st September 2025
43AQI
2nd September 2025
36AQI
3rd September 2025
37AQI
4th September 2025
41AQI
5th September 2025
34AQI
6th September 2025
29AQI
7th September 2025
29AQI
8th September 2025
40AQI
9th September 2025
43AQI
10th September 2025
37AQI
11th September 2025
31AQI
12th September 2025
30AQI
13th September 2025
28AQI
14th September 2025
34AQI
15th September 2025
37AQI
16th September 2025
38AQI
17th September 2025
48AQI
18th September 2025
46AQI
19th September 2025
35AQI
20th September 2025
36AQI
21st September 2025
27AQI
22nd September 2025
27AQI
23rd September 2025
27AQI
24th September 2025
27AQI
25th September 2025
30AQI
26th September 2025
52AQI
27th September 2025
33AQI
28th September 2025
33AQI
29th September 2025
34AQI
30th September 2025
25AQI
1st October 2025
37AQI
2nd October 2025
57AQI
3rd October 2025
59AQI
4th October 2025
62AQI
5th October 2025
60AQI
6th October 2025
53AQI
7th October 2025
60AQI
8th October 2025
63AQI
9th October 2025
60AQI
10th October 2025
61AQI
11th October 2025
50AQI
12th October 2025
46AQI
13th October 2025
63AQI
14th October 2025
59AQI
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

28AQI

30AQI

32AQI

21AQI

21AQI

23AQI

45AQI

46AQI

35AQI

56AQI

No. of days

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

202533AQI

31
28
29
2
30
31
30
23
8
22
9
29
1
3
11
256
31

Highest AQI recorded in

October

56AQI

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 (33) shows an average percentage change of 21.1% (worsened AQI) compared to previous years: 2020 (16), 2021 (36), 2022 (33), 2023 (30), 2024 (31).