Koganei, 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
Koganei, Tokyo, Japan
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
34AQILowest AQI recorded on
1st Aug 2025
34AQISame Day Analysis (1st August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 34 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Koganei, Tokyo, Japan
AQI
Day
Night
.
4 AM2nd Aug 2025
6 PM
3 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
6PM2nd Aug
59AQI
Avg. Lowest Time
12AM3rd Aug
34AQI
In the last 24 hours,
Koganei's AQI reached its highest point of 59 at 6 PM during the Night, while the lowest point, undefined, was recorded at 3 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Koganei, Tokyo, Japan
JulAug
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Jul 2025454 AMAQI
4th Jul 2025405 AMAQI
4th Jul 2025356 AMAQI
4th Jul 2025467 AMAQI
4th Jul 2025488 AMAQI
4th Jul 2025479 AMAQI
4th Jul 20255310 AMAQI
4th Jul 20255211 AMAQI
4th Jul 20254912 PMAQI
4th Jul 2025501 PMAQI
4th Jul 2025502 PMAQI
4th Jul 2025533 PMAQI
4th Jul 2025524 PMAQI
4th Jul 2025505 PMAQI
4th Jul 2025446 PMAQI
4th Jul 2025427 PMAQI
4th Jul 2025408 PMAQI
4th Jul 2025399 PMAQI
4th Jul 20254110 PMAQI
4th Jul 20254211 PMAQI
5th Jul 20254212 AMAQI
5th Jul 2025431 AMAQI
5th Jul 2025442 AMAQI
5th Jul 2025423 AMAQI
29°C26/33°C
5th Jul 2025444 AMAQI
5th Jul 2025405 AMAQI
5th Jul 2025346 AMAQI
5th Jul 2025437 AMAQI
5th Jul 2025598 AMAQI
5th Jul 2025579 AMAQI
5th Jul 20255410 AMAQI
5th Jul 20255611 AMAQI
5th Jul 20255412 PMAQI
5th Jul 2025571 PMAQI
5th Jul 2025572 PMAQI
5th Jul 2025603 PMAQI
5th Jul 2025654 PMAQI
5th Jul 2025585 PMAQI
5th Jul 2025526 PMAQI
5th Jul 2025487 PMAQI
5th Jul 2025468 PMAQI
5th Jul 2025479 PMAQI
5th Jul 20254210 PMAQI
5th Jul 20254211 PMAQI
6th Jul 20254212 AMAQI
6th Jul 2025441 AMAQI
6th Jul 2025442 AMAQI
6th Jul 2025443 AMAQI
30°C27/33°C
6th Jul 2025444 AMAQI
6th Jul 2025455 AMAQI
6th Jul 2025576 AMAQI
6th Jul 2025617 AMAQI
6th Jul 2025688 AMAQI
6th Jul 2025689 AMAQI
6th Jul 20255910 AMAQI
6th Jul 20256011 AMAQI
6th Jul 20256112 PMAQI
6th Jul 2025621 PMAQI
6th Jul 2025692 PMAQI
6th Jul 2025783 PMAQI
6th Jul 2025824 PMAQI
6th Jul 2025705 PMAQI
6th Jul 2025576 PMAQI
6th Jul 2025587 PMAQI
6th Jul 2025578 PMAQI
6th Jul 2025579 PMAQI
6th Jul 20255010 PMAQI
6th Jul 20254811 PMAQI
7th Jul 20254812 AMAQI
7th Jul 2025501 AMAQI
7th Jul 2025522 AMAQI
7th Jul 2025523 AMAQI
31°C28/36°C
7th Jul 2025524 AMAQI
7th Jul 2025635 AMAQI
7th Jul 2025976 AMAQI
7th Jul 2025987 AMAQI
7th Jul 2025998 AMAQI
7th Jul 2025919 AMAQI
7th Jul 20257910 AMAQI
7th Jul 20257811 AMAQI
7th Jul 20257912 PMAQI
7th Jul 2025781 PMAQI
7th Jul 2025832 PMAQI
7th Jul 2025953 PMAQI
7th Jul 20251064 PMAQI
7th Jul 2025815 PMAQI
7th Jul 2025736 PMAQI
7th Jul 2025727 PMAQI
7th Jul 2025728 PMAQI
7th Jul 2025759 PMAQI
7th Jul 20256010 PMAQI
7th Jul 20255711 PMAQI
8th Jul 20255812 AMAQI
8th Jul 2025581 AMAQI
8th Jul 2025652 AMAQI
8th Jul 2025653 AMAQI
31°C28/35°C
8th Jul 2025654 AMAQI
8th Jul 2025805 AMAQI
8th Jul 20251196 AMAQI
8th Jul 20251107 AMAQI
8th Jul 20251058 AMAQI
8th Jul 2025949 AMAQI
8th Jul 20257910 AMAQI
8th Jul 20257511 AMAQI
8th Jul 20257412 PMAQI
8th Jul 2025751 PMAQI
8th Jul 2025762 PMAQI
8th Jul 2025783 PMAQI
8th Jul 2025804 PMAQI
8th Jul 2025805 PMAQI
8th Jul 2025796 PMAQI
8th Jul 2025787 PMAQI
8th Jul 2025798 PMAQI
8th Jul 2025789 PMAQI
8th Jul 20256810 PMAQI
8th Jul 20256611 PMAQI
9th Jul 20256612 AMAQI
9th Jul 2025701 AMAQI
9th Jul 2025742 AMAQI
9th Jul 2025743 AMAQI
30°C28/34°C
9th Jul 2025744 AMAQI
9th Jul 2025825 AMAQI
9th Jul 20251026 AMAQI
9th Jul 2025987 AMAQI
9th Jul 20251068 AMAQI
9th Jul 20251189 AMAQI
9th Jul 20259810 AMAQI
9th Jul 20259811 AMAQI
9th Jul 20259612 PMAQI
9th Jul 2025951 PMAQI
9th Jul 2025882 PMAQI
9th Jul 2025803 PMAQI
9th Jul 2025667 PMAQI
9th Jul 2025648 PMAQI
9th Jul 2025659 PMAQI
9th Jul 20256610 PMAQI
9th Jul 20256611 PMAQI
10th Jul 20256512 AMAQI
10th Jul 2025661 AMAQI
10th Jul 2025722 AMAQI
10th Jul 2025723 AMAQI
30°C27/34°C
10th Jul 2025734 AMAQI
10th Jul 2025775 AMAQI
10th Jul 2025796 AMAQI
10th Jul 2025787 AMAQI
10th Jul 2025788 AMAQI
10th Jul 2025639 AMAQI
10th Jul 20256210 AMAQI
10th Jul 20257011 AMAQI
10th Jul 20257812 PMAQI
10th Jul 2025641 PMAQI
10th Jul 2025522 PMAQI
10th Jul 2025473 PMAQI
10th Jul 2025464 PMAQI
10th Jul 2025475 PMAQI
10th Jul 2025466 PMAQI
10th Jul 2025457 PMAQI
10th Jul 2025508 PMAQI
10th Jul 2025609 PMAQI
10th Jul 20256210 PMAQI
10th Jul 20256211 PMAQI
11th Jul 20256212 AMAQI
11th Jul 2025651 AMAQI
11th Jul 2025702 AMAQI
11th Jul 2025703 AMAQI
29°C24/35°C
11th Jul 2025704 AMAQI
11th Jul 2025685 AMAQI
11th Jul 2025686 AMAQI
11th Jul 2025687 AMAQI
11th Jul 2025698 AMAQI
11th Jul 2025329 AMAQI
11th Jul 20251710 AMAQI
11th Jul 20252211 AMAQI
11th Jul 20252112 PMAQI
11th Jul 2025401 PMAQI
11th Jul 2025472 PMAQI
11th Jul 2025493 PMAQI
11th Jul 2025474 PMAQI
11th Jul 2025475 PMAQI
11th Jul 2025446 PMAQI
11th Jul 2025447 PMAQI
11th Jul 2025508 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20256010 PMAQI
11th Jul 20256011 PMAQI
12th Jul 20256012 AMAQI
12th Jul 2025621 AMAQI
12th Jul 2025652 AMAQI
12th Jul 2025653 AMAQI
24°C23/27°C
12th Jul 2025654 AMAQI
12th Jul 2025625 AMAQI
12th Jul 2025626 AMAQI
12th Jul 2025627 AMAQI
12th Jul 2025628 AMAQI
12th Jul 2025389 AMAQI
12th Jul 20253410 AMAQI
12th Jul 20254011 AMAQI
12th Jul 20254112 PMAQI
12th Jul 2025511 PMAQI
12th Jul 2025532 PMAQI
12th Jul 2025533 PMAQI
12th Jul 2025544 PMAQI
12th Jul 2025545 PMAQI
12th Jul 2025546 PMAQI
12th Jul 2025537 PMAQI
12th Jul 2025528 PMAQI
12th Jul 2025589 PMAQI
12th Jul 20255810 PMAQI
12th Jul 20255811 PMAQI
13th Jul 20255812 AMAQI
13th Jul 2025591 AMAQI
13th Jul 2025622 AMAQI
13th Jul 2025613 AMAQI
25°C22/29°C
13th Jul 2025614 AMAQI
13th Jul 2025605 AMAQI
13th Jul 2025596 AMAQI
13th Jul 2025607 AMAQI
13th Jul 2025608 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20253710 AMAQI
13th Jul 20254611 AMAQI
13th Jul 20255112 PMAQI
13th Jul 2025531 PMAQI
13th Jul 2025542 PMAQI
13th Jul 2025533 PMAQI
13th Jul 2025534 PMAQI
13th Jul 2025515 PMAQI
13th Jul 2025496 PMAQI
13th Jul 2025497 PMAQI
13th Jul 2025508 PMAQI
13th Jul 2025559 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255611 PMAQI
14th Jul 20255612 AMAQI
14th Jul 2025561 AMAQI
14th Jul 2025592 AMAQI
14th Jul 2025593 AMAQI
27°C24/31°C
14th Jul 2025594 AMAQI
14th Jul 2025585 AMAQI
14th Jul 2025586 AMAQI
14th Jul 2025587 AMAQI
14th Jul 2025588 AMAQI
14th Jul 2025309 AMAQI
14th Jul 20252310 AMAQI
14th Jul 20251711 AMAQI
14th Jul 20251812 PMAQI
14th Jul 2025311 PMAQI
14th Jul 2025332 PMAQI
14th Jul 2025343 PMAQI
14th Jul 2025364 PMAQI
14th Jul 2025395 PMAQI
14th Jul 2025416 PMAQI
14th Jul 2025387 PMAQI
14th Jul 2025408 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255410 PMAQI
14th Jul 20255511 PMAQI
15th Jul 20255412 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025572 AMAQI
15th Jul 2025573 AMAQI
27°C25/30°C
15th Jul 2025574 AMAQI
15th Jul 2025565 AMAQI
15th Jul 2025566 AMAQI
15th Jul 2025557 AMAQI
15th Jul 2025558 AMAQI
15th Jul 2025329 AMAQI
15th Jul 20252210 AMAQI
15th Jul 20252511 AMAQI
15th Jul 20252812 PMAQI
15th Jul 2025381 PMAQI
15th Jul 2025382 PMAQI
15th Jul 2025393 PMAQI
15th Jul 2025414 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025396 PMAQI
15th Jul 2025377 PMAQI
15th Jul 2025358 PMAQI
15th Jul 2025499 PMAQI
15th Jul 20255310 PMAQI
15th Jul 20255311 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025531 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025553 AMAQI
28°C26/30°C
16th Jul 2025544 AMAQI
16th Jul 2025545 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025547 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025529 AMAQI
16th Jul 20254410 AMAQI
16th Jul 20253311 AMAQI
16th Jul 20252812 PMAQI
16th Jul 2025361 PMAQI
16th Jul 2025352 PMAQI
16th Jul 2025373 PMAQI
16th Jul 2025374 PMAQI
16th Jul 2025375 PMAQI
16th Jul 2025336 PMAQI
16th Jul 2025327 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025489 PMAQI
16th Jul 20255210 PMAQI
16th Jul 20255211 PMAQI
17th Jul 20255212 AMAQI
17th Jul 2025521 AMAQI
17th Jul 2025532 AMAQI
17th Jul 2025533 AMAQI
28°C26/31°C
17th Jul 2025534 AMAQI
17th Jul 2025525 AMAQI
17th Jul 2025536 AMAQI
17th Jul 2025537 AMAQI
17th Jul 2025538 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20252810 AMAQI
17th Jul 20253511 AMAQI
17th Jul 20253312 PMAQI
17th Jul 2025351 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025373 PMAQI
17th Jul 2025404 PMAQI
17th Jul 2025405 PMAQI
17th Jul 2025426 PMAQI
17th Jul 2025437 PMAQI
17th Jul 2025438 PMAQI
17th Jul 2025489 PMAQI
17th Jul 20254910 PMAQI
17th Jul 20254911 PMAQI
18th Jul 20254912 AMAQI
18th Jul 2025501 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025523 AMAQI
29°C26/32°C
18th Jul 2025524 AMAQI
18th Jul 2025525 AMAQI
18th Jul 2025516 AMAQI
18th Jul 2025527 AMAQI
18th Jul 2025518 AMAQI
18th Jul 2025349 AMAQI
18th Jul 20253010 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20252812 PMAQI
18th Jul 2025311 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025313 PMAQI
18th Jul 2025334 PMAQI
18th Jul 2025325 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025347 PMAQI
18th Jul 2025348 PMAQI
18th Jul 2025439 PMAQI
18th Jul 20254510 PMAQI
18th Jul 20254411 PMAQI
19th Jul 20254512 AMAQI
19th Jul 2025461 AMAQI
19th Jul 2025482 AMAQI
19th Jul 2025483 AMAQI
28°C25/32°C
19th Jul 2025484 AMAQI
19th Jul 2025485 AMAQI
19th Jul 2025486 AMAQI
19th Jul 2025487 AMAQI
19th Jul 2025488 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252010 AMAQI
19th Jul 20252211 AMAQI
19th Jul 20252512 PMAQI
19th Jul 2025291 PMAQI
19th Jul 2025282 PMAQI
19th Jul 2025313 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025275 PMAQI
19th Jul 2025296 PMAQI
19th Jul 2025297 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20254010 PMAQI
19th Jul 20254211 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025411 AMAQI
20th Jul 2025462 AMAQI
20th Jul 2025463 AMAQI
29°C26/32°C
20th Jul 2025464 AMAQI
20th Jul 2025435 AMAQI
20th Jul 2025446 AMAQI
20th Jul 2025447 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20252510 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025311 PMAQI
20th Jul 2025332 PMAQI
20th Jul 2025303 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025275 PMAQI
20th Jul 2025316 PMAQI
20th Jul 2025327 PMAQI
20th Jul 2025338 PMAQI
20th Jul 2025369 PMAQI
20th Jul 20253810 PMAQI
20th Jul 20253711 PMAQI
21st Jul 20253712 AMAQI
21st Jul 2025391 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025413 AMAQI
30°C27/34°C
21st Jul 2025414 AMAQI
21st Jul 2025385 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025329 AMAQI
21st Jul 20253910 AMAQI
21st Jul 20254011 AMAQI
21st Jul 20255212 PMAQI
21st Jul 2025491 PMAQI
21st Jul 2025432 PMAQI
21st Jul 2025393 PMAQI
21st Jul 2025374 PMAQI
21st Jul 2025345 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025359 PMAQI
21st Jul 20253610 PMAQI
21st Jul 20253511 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025392 AMAQI
22nd Jul 2025383 AMAQI
31°C28/35°C
22nd Jul 2025384 AMAQI
22nd Jul 2025405 AMAQI
22nd Jul 2025396 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025398 AMAQI
22nd Jul 2025299 AMAQI
22nd Jul 20253710 AMAQI
22nd Jul 20254811 AMAQI
22nd Jul 20255612 PMAQI
22nd Jul 2025511 PMAQI
22nd Jul 2025502 PMAQI
22nd Jul 2025443 PMAQI
22nd Jul 2025414 PMAQI
22nd Jul 2025375 PMAQI
22nd Jul 2025356 PMAQI
22nd Jul 2025307 PMAQI
22nd Jul 2025308 PMAQI
22nd Jul 2025319 PMAQI
22nd Jul 20253110 PMAQI
22nd Jul 20253311 PMAQI
23rd Jul 20253212 AMAQI
23rd Jul 2025341 AMAQI
23rd Jul 2025372 AMAQI
23rd Jul 2025363 AMAQI
31°C28/35°C
23rd Jul 2025374 AMAQI
23rd Jul 2025395 AMAQI
23rd Jul 2025396 AMAQI
23rd Jul 2025397 AMAQI
23rd Jul 2025398 AMAQI
23rd Jul 2025399 AMAQI
23rd Jul 20255410 AMAQI
23rd Jul 20256211 AMAQI
23rd Jul 20256712 PMAQI
23rd Jul 2025581 PMAQI
23rd Jul 2025572 PMAQI
23rd Jul 2025523 PMAQI
23rd Jul 2025504 PMAQI
23rd Jul 2025455 PMAQI
23rd Jul 2025426 PMAQI
23rd Jul 2025387 PMAQI
23rd Jul 2025328 PMAQI
23rd Jul 2025329 PMAQI
23rd Jul 20253310 PMAQI
23rd Jul 20253411 PMAQI
24th Jul 20253312 AMAQI
24th Jul 2025351 AMAQI
24th Jul 2025362 AMAQI
24th Jul 2025373 AMAQI
31°C28/35°C
24th Jul 2025374 AMAQI
24th Jul 2025405 AMAQI
24th Jul 2025396 AMAQI
24th Jul 2025397 AMAQI
24th Jul 2025398 AMAQI
24th Jul 2025429 AMAQI
24th Jul 20255810 AMAQI
24th Jul 20256311 AMAQI
24th Jul 20256912 PMAQI
24th Jul 2025621 PMAQI
24th Jul 2025572 PMAQI
24th Jul 2025553 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025445 PMAQI
24th Jul 2025386 PMAQI
24th Jul 2025367 PMAQI
24th Jul 2025338 PMAQI
24th Jul 2025349 PMAQI
24th Jul 20253410 PMAQI
24th Jul 20253511 PMAQI
25th Jul 20253412 AMAQI
25th Jul 2025341 AMAQI
25th Jul 2025362 AMAQI
25th Jul 2025373 AMAQI
31°C28/36°C
25th Jul 2025384 AMAQI
25th Jul 2025405 AMAQI
25th Jul 2025396 AMAQI
25th Jul 2025407 AMAQI
25th Jul 2025408 AMAQI
25th Jul 2025519 AMAQI
25th Jul 20255710 AMAQI
25th Jul 20255911 AMAQI
25th Jul 20256612 PMAQI
25th Jul 2025571 PMAQI
25th Jul 2025452 PMAQI
25th Jul 2025393 PMAQI
25th Jul 2025374 PMAQI
25th Jul 2025335 PMAQI
25th Jul 2025316 PMAQI
25th Jul 2025287 PMAQI
25th Jul 2025308 PMAQI
25th Jul 2025329 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253411 PMAQI
26th Jul 20253412 AMAQI
26th Jul 2025341 AMAQI
26th Jul 2025372 AMAQI
26th Jul 2025373 AMAQI
32°C29/36°C
26th Jul 2025384 AMAQI
26th Jul 2025405 AMAQI
26th Jul 2025406 AMAQI
26th Jul 2025407 AMAQI
26th Jul 2025408 AMAQI
26th Jul 2025449 AMAQI
26th Jul 20255410 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255812 PMAQI
26th Jul 2025501 PMAQI
26th Jul 2025412 PMAQI
26th Jul 2025373 PMAQI
26th Jul 2025324 PMAQI
26th Jul 2025285 PMAQI
26th Jul 2025256 PMAQI
26th Jul 2025267 PMAQI
26th Jul 2025308 PMAQI
26th Jul 2025339 PMAQI
26th Jul 20253310 PMAQI
26th Jul 20253311 PMAQI
27th Jul 20253312 AMAQI
27th Jul 2025341 AMAQI
27th Jul 2025372 AMAQI
27th Jul 2025373 AMAQI
32°C29/36°C
27th Jul 2025374 AMAQI
27th Jul 2025385 AMAQI
27th Jul 2025406 AMAQI
27th Jul 2025397 AMAQI
27th Jul 2025398 AMAQI
27th Jul 2025369 AMAQI
27th Jul 20254010 AMAQI
27th Jul 20253711 AMAQI
27th Jul 20254212 PMAQI
27th Jul 2025381 PMAQI
27th Jul 2025362 PMAQI
27th Jul 2025373 PMAQI
27th Jul 2025304 PMAQI
27th Jul 2025265 PMAQI
27th Jul 2025276 PMAQI
27th Jul 2025247 PMAQI
27th Jul 2025248 PMAQI
27th Jul 2025319 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253212 AMAQI
28th Jul 2025331 AMAQI
28th Jul 2025362 AMAQI
28th Jul 2025373 AMAQI
31°C29/35°C
28th Jul 2025374 AMAQI
28th Jul 2025375 AMAQI
28th Jul 2025396 AMAQI
28th Jul 2025387 AMAQI
28th Jul 2025388 AMAQI
28th Jul 2025299 AMAQI
28th Jul 20253210 AMAQI
28th Jul 20254511 AMAQI
28th Jul 20255212 PMAQI
28th Jul 2025491 PMAQI
28th Jul 2025522 PMAQI
28th Jul 2025533 PMAQI
28th Jul 2025534 PMAQI
28th Jul 2025465 PMAQI
28th Jul 2025386 PMAQI
28th Jul 2025337 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025349 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253411 PMAQI
29th Jul 20253412 AMAQI
29th Jul 2025331 AMAQI
29th Jul 2025362 AMAQI
29th Jul 2025353 AMAQI
32°C29/36°C
29th Jul 2025364 AMAQI
29th Jul 2025395 AMAQI
29th Jul 2025386 AMAQI
29th Jul 2025397 AMAQI
29th Jul 2025388 AMAQI
29th Jul 2025349 AMAQI
29th Jul 20255510 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255612 PMAQI
29th Jul 2025511 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025524 PMAQI
29th Jul 2025485 PMAQI
29th Jul 2025416 PMAQI
29th Jul 2025347 PMAQI
29th Jul 2025298 PMAQI
29th Jul 2025309 PMAQI
29th Jul 20253210 PMAQI
29th Jul 20253211 PMAQI
30th Jul 20253212 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025353 AMAQI
31°C27/37°C
30th Jul 2025364 AMAQI
30th Jul 2025365 AMAQI
30th Jul 2025376 AMAQI
30th Jul 2025387 AMAQI
30th Jul 2025378 AMAQI
30th Jul 2025209 AMAQI
30th Jul 20251710 AMAQI
30th Jul 20252111 AMAQI
30th Jul 20252612 PMAQI
30th Jul 2025321 PMAQI
30th Jul 2025322 PMAQI
30th Jul 2025323 PMAQI
30th Jul 2025354 PMAQI
30th Jul 2025295 PMAQI
30th Jul 2025276 PMAQI
30th Jul 2025267 PMAQI
30th Jul 2025318 PMAQI
30th Jul 2025369 PMAQI
30th Jul 20253610 PMAQI
30th Jul 20253611 PMAQI
31st Jul 20253512 AMAQI
31st Jul 2025351 AMAQI
31st Jul 2025362 AMAQI
31st Jul 2025373 AMAQI
31°C27/36°C
31st Jul 2025364 AMAQI
31st Jul 2025355 AMAQI
31st Jul 2025356 AMAQI
31st Jul 2025357 AMAQI
31st Jul 2025358 AMAQI
31st Jul 2025359 AMAQI
31st Jul 20253510 AMAQI
31st Jul 20254411 AMAQI
31st Jul 20255212 PMAQI
31st Jul 2025421 PMAQI
31st Jul 2025402 PMAQI
31st Jul 2025363 PMAQI
31st Jul 2025344 PMAQI
31st Jul 2025315 PMAQI
31st Jul 2025296 PMAQI
31st Jul 2025287 PMAQI
31st Jul 2025308 PMAQI
31st Jul 2025289 PMAQI
31st Jul 20252810 PMAQI
31st Jul 20252611 PMAQI
1st Aug 20252712 AMAQI
1st Aug 2025341 AMAQI
1st Aug 2025332 AMAQI
1st Aug 2025343 AMAQI
29°C26/34°C
1st Aug 2025364 AMAQI
1st Aug 2025345 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025367 AMAQI
1st Aug 2025368 AMAQI
1st Aug 2025409 AMAQI
1st Aug 20253010 AMAQI
1st Aug 20254211 AMAQI
1st Aug 20255012 PMAQI
1st Aug 2025441 PMAQI
1st Aug 2025402 PMAQI
1st Aug 2025353 PMAQI
1st Aug 2025424 PMAQI
1st Aug 2025345 PMAQI
1st Aug 2025396 PMAQI
1st Aug 2025247 PMAQI
1st Aug 2025308 PMAQI
1st Aug 2025289 PMAQI
1st Aug 20253010 PMAQI
1st Aug 20252911 PMAQI
2nd Aug 20252912 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025363 AMAQI
28°C26/32°C
2nd Aug 2025384 AMAQI
2nd Aug 2025385 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025377 AMAQI
2nd Aug 2025398 AMAQI
2nd Aug 2025379 AMAQI
2nd Aug 20253710 AMAQI
2nd Aug 20254511 AMAQI
2nd Aug 20253712 PMAQI
2nd Aug 2025511 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025573 PMAQI
2nd Aug 2025534 PMAQI
2nd Aug 2025545 PMAQI
2nd Aug 2025596 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025408 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20254511 PMAQI
3rd Aug 20253412 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025372 AMAQI
--°C/°C
4 AM
11 AM
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 AM
53AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
5 PM - 6 PM
43AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 AM (Avg. 53), while the lowest AQI was between 5 PM to 6 PM (Avg. 43).
Night time
Avg. Highest Time
12 AM - 3 AM
46AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 8 PM
40AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 46), while the lowest AQI was between 7 PM to 8 PM (Avg. 40).
2025 Days Vs Air Quality
Koganei, Tokyo, Japan
2025
88%
57
12%
8
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
57 DaysModerate
8 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 214 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
Koganei, 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 May 2025
32AQI
32AQI
2nd May 2025
19AQI
19AQI
3rd May 2025
15AQI
15AQI
1st June 2025
19AQI
19AQI
2nd June 2025
25AQI
25AQI
3rd June 2025
21AQI
21AQI
4th June 2025
23AQI
23AQI
5th June 2025
34AQI
34AQI
6th June 2025
38AQI
38AQI
7th June 2025
41AQI
41AQI
8th June 2025
48AQI
48AQI
9th June 2025
35AQI
35AQI
10th June 2025
32AQI
32AQI
11th June 2025
27AQI
27AQI
12th June 2025
33AQI
33AQI
13th June 2025
32AQI
32AQI
14th June 2025
27AQI
27AQI
15th June 2025
25AQI
25AQI
16th June 2025
29AQI
29AQI
17th June 2025
38AQI
38AQI
18th June 2025
32AQI
32AQI
19th June 2025
33AQI
33AQI
20th June 2025
34AQI
34AQI
21st June 2025
27AQI
27AQI
22nd June 2025
19AQI
19AQI
23rd June 2025
19AQI
19AQI
24th June 2025
17AQI
17AQI
25th June 2025
16AQI
16AQI
26th June 2025
16AQI
16AQI
27th June 2025
22AQI
22AQI
28th June 2025
22AQI
22AQI
29th June 2025
26AQI
26AQI
30th June 2025
34AQI
34AQI
1st July 2025
38AQI
38AQI
2nd July 2025
45AQI
45AQI
3rd July 2025
41AQI
41AQI
4th July 2025
44AQI
44AQI
5th July 2025
47AQI
47AQI
6th July 2025
54AQI
54AQI
7th July 2025
69AQI
69AQI
8th July 2025
75AQI
75AQI
9th July 2025
78AQI
78AQI
10th July 2025
63AQI
63AQI
11th July 2025
55AQI
55AQI
12th July 2025
56AQI
56AQI
13th July 2025
55AQI
55AQI
14th July 2025
47AQI
47AQI
15th July 2025
47AQI
47AQI
16th July 2025
46AQI
46AQI
17th July 2025
46AQI
46AQI
18th July 2025
42AQI
42AQI
19th July 2025
38AQI
38AQI
20th July 2025
37AQI
37AQI
21st July 2025
38AQI
38AQI
22nd July 2025
37AQI
37AQI
23rd July 2025
40AQI
40AQI
24th July 2025
41AQI
41AQI
25th July 2025
38AQI
38AQI
26th July 2025
37AQI
37AQI
27th July 2025
34AQI
34AQI
28th July 2025
37AQI
37AQI
29th July 2025
39AQI
39AQI
30th July 2025
32AQI
32AQI
31st July 2025
34AQI
34AQI
1st August 2025
34AQI
34AQI
22AQI
28AQI
46AQI
34AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202537AQI
3
30
23
8
1
57
8
Highest AQI recorded in
July46AQI
Lowest AQI recorded in
May22AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
37AQILeast Polluted Year Recorded
2025(Avg.)
37AQIKoganei's annual 2025 AQI (37) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
