Kokubo, Kofu, Yamanashi, 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
Kokubo, Kofu, Yamanashi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Aug 2024
126AQILowest AQI recorded on
15th Aug 2021
14AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 53 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Kokubo, Kofu, Yamanashi, Japan
AQI
Day
Night
.
4 AM4th Aug 2025
6 PM
3 AM5th Aug 2025
Day time
Avg. Highest Time
4PM4th Aug
88AQI
Avg. Lowest Time
7AM4th Aug
44AQI
Night time
Avg. Highest Time
7PM4th Aug
69AQI
Avg. Lowest Time
3AM5th Aug
43AQI
In the last 24 hours,
Kokubo's AQI reached its highest point of 88 at 4 PM during the Day, while the lowest point, 43, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Kokubo, Kofu, Yamanashi, Japan
JulAug
06th - 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 - 04th04th - 05th05th
Day
Night
6th Jul 2025524 AMAQI
6th Jul 2025525 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025528 AMAQI
6th Jul 2025589 AMAQI
6th Jul 20257810 AMAQI
6th Jul 20257611 AMAQI
6th Jul 20257312 PMAQI
6th Jul 2025661 PMAQI
6th Jul 2025662 PMAQI
6th Jul 2025663 PMAQI
6th Jul 2025674 PMAQI
6th Jul 2025655 PMAQI
6th Jul 2025786 PMAQI
6th Jul 2025837 PMAQI
6th Jul 2025778 PMAQI
6th Jul 2025609 PMAQI
6th Jul 20255610 PMAQI
6th Jul 20255411 PMAQI
7th Jul 20255812 AMAQI
7th Jul 2025581 AMAQI
7th Jul 2025532 AMAQI
7th Jul 2025533 AMAQI
25°C18/32°C
7th Jul 2025544 AMAQI
7th Jul 2025565 AMAQI
7th Jul 2025566 AMAQI
7th Jul 2025577 AMAQI
7th Jul 2025568 AMAQI
7th Jul 2025759 AMAQI
7th Jul 20258710 AMAQI
7th Jul 20258911 AMAQI
7th Jul 20257912 PMAQI
7th Jul 2025811 PMAQI
7th Jul 2025752 PMAQI
7th Jul 2025783 PMAQI
7th Jul 2025804 PMAQI
7th Jul 2025765 PMAQI
7th Jul 2025896 PMAQI
7th Jul 2025827 PMAQI
7th Jul 2025748 PMAQI
7th Jul 2025679 PMAQI
7th Jul 20256310 PMAQI
7th Jul 20257111 PMAQI
8th Jul 20255812 AMAQI
8th Jul 2025571 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025563 AMAQI
24°C17/31°C
8th Jul 2025584 AMAQI
8th Jul 2025605 AMAQI
8th Jul 2025606 AMAQI
8th Jul 2025617 AMAQI
8th Jul 2025608 AMAQI
8th Jul 2025969 AMAQI
8th Jul 202510610 AMAQI
8th Jul 202511111 AMAQI
8th Jul 202510412 PMAQI
8th Jul 2025881 PMAQI
8th Jul 2025812 PMAQI
8th Jul 2025793 PMAQI
8th Jul 2025844 PMAQI
8th Jul 2025795 PMAQI
8th Jul 2025826 PMAQI
8th Jul 2025827 PMAQI
8th Jul 2025688 PMAQI
8th Jul 2025659 PMAQI
8th Jul 20256610 PMAQI
8th Jul 20257011 PMAQI
9th Jul 20257012 AMAQI
9th Jul 2025671 AMAQI
9th Jul 2025612 AMAQI
9th Jul 2025603 AMAQI
24°C18/31°C
9th Jul 2025634 AMAQI
9th Jul 2025685 AMAQI
9th Jul 2025666 AMAQI
9th Jul 2025677 AMAQI
9th Jul 2025678 AMAQI
9th Jul 2025789 AMAQI
9th Jul 20258710 AMAQI
9th Jul 20258011 AMAQI
9th Jul 20258612 PMAQI
9th Jul 2025911 PMAQI
9th Jul 2025922 PMAQI
9th Jul 2025893 PMAQI
9th Jul 20251024 PMAQI
9th Jul 20251085 PMAQI
9th Jul 2025966 PMAQI
9th Jul 2025887 PMAQI
9th Jul 2025858 PMAQI
9th Jul 2025709 PMAQI
9th Jul 20256610 PMAQI
9th Jul 20256711 PMAQI
10th Jul 20256412 AMAQI
10th Jul 2025651 AMAQI
10th Jul 2025672 AMAQI
10th Jul 2025663 AMAQI
23°C17/32°C
10th Jul 2025684 AMAQI
10th Jul 2025705 AMAQI
10th Jul 2025726 AMAQI
10th Jul 2025707 AMAQI
10th Jul 2025718 AMAQI
10th Jul 2025789 AMAQI
10th Jul 20258210 AMAQI
10th Jul 20259611 AMAQI
10th Jul 20259312 PMAQI
10th Jul 2025771 PMAQI
10th Jul 2025742 PMAQI
10th Jul 2025713 PMAQI
10th Jul 2025684 PMAQI
10th Jul 2025575 PMAQI
10th Jul 2025536 PMAQI
10th Jul 2025507 PMAQI
10th Jul 2025568 PMAQI
10th Jul 2025609 PMAQI
10th Jul 20256010 PMAQI
10th Jul 20255911 PMAQI
11th Jul 20255812 AMAQI
11th Jul 2025641 AMAQI
11th Jul 2025692 AMAQI
11th Jul 2025693 AMAQI
23°C16/32°C
11th Jul 2025704 AMAQI
11th Jul 2025715 AMAQI
11th Jul 2025706 AMAQI
11th Jul 2025707 AMAQI
11th Jul 2025708 AMAQI
11th Jul 2025329 AMAQI
11th Jul 20252410 AMAQI
11th Jul 20253311 AMAQI
11th Jul 20252612 PMAQI
11th Jul 2025361 PMAQI
11th Jul 2025392 PMAQI
11th Jul 2025403 PMAQI
11th Jul 2025404 PMAQI
11th Jul 2025415 PMAQI
11th Jul 2025376 PMAQI
11th Jul 2025337 PMAQI
11th Jul 2025438 PMAQI
11th Jul 2025569 PMAQI
11th Jul 20255710 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255712 AMAQI
12th Jul 2025611 AMAQI
12th Jul 2025662 AMAQI
12th Jul 2025673 AMAQI
22°C18/28°C
12th Jul 2025654 AMAQI
12th Jul 2025625 AMAQI
12th Jul 2025616 AMAQI
12th Jul 2025627 AMAQI
12th Jul 2025628 AMAQI
12th Jul 2025379 AMAQI
12th Jul 20253010 AMAQI
12th Jul 20253411 AMAQI
12th Jul 20253412 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025422 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025444 PMAQI
12th Jul 2025465 PMAQI
12th Jul 2025286 PMAQI
12th Jul 2025277 PMAQI
12th Jul 2025378 PMAQI
12th Jul 2025539 PMAQI
12th Jul 20255310 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025561 AMAQI
13th Jul 2025622 AMAQI
13th Jul 2025623 AMAQI
22°C17/28°C
13th Jul 2025604 AMAQI
13th Jul 2025585 AMAQI
13th Jul 2025596 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025588 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20254210 AMAQI
13th Jul 20254311 AMAQI
13th Jul 20254812 PMAQI
13th Jul 2025501 PMAQI
13th Jul 2025512 PMAQI
13th Jul 2025513 PMAQI
13th Jul 2025514 PMAQI
13th Jul 2025515 PMAQI
13th Jul 2025506 PMAQI
13th Jul 2025407 PMAQI
13th Jul 2025438 PMAQI
13th Jul 2025529 PMAQI
13th Jul 20255210 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI
23°C16/30°C
14th Jul 2025574 AMAQI
14th Jul 2025575 AMAQI
14th Jul 2025576 AMAQI
14th Jul 2025577 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025359 AMAQI
14th Jul 20253410 AMAQI
14th Jul 20253111 AMAQI
14th Jul 20253012 PMAQI
14th Jul 2025341 PMAQI
14th Jul 2025322 PMAQI
14th Jul 2025323 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025365 PMAQI
14th Jul 2025326 PMAQI
14th Jul 2025287 PMAQI
14th Jul 2025308 PMAQI
14th Jul 2025449 PMAQI
14th Jul 20254610 PMAQI
14th Jul 20254411 PMAQI
15th Jul 20254512 AMAQI
15th Jul 2025481 AMAQI
15th Jul 2025562 AMAQI
15th Jul 2025563 AMAQI
21°C15/30°C
15th Jul 2025564 AMAQI
15th Jul 2025545 AMAQI
15th Jul 2025546 AMAQI
15th Jul 2025547 AMAQI
15th Jul 2025548 AMAQI
15th Jul 2025279 AMAQI
15th Jul 20252010 AMAQI
15th Jul 20251811 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025191 PMAQI
15th Jul 2025242 PMAQI
15th Jul 2025263 PMAQI
15th Jul 2025284 PMAQI
15th Jul 2025255 PMAQI
15th Jul 2025196 PMAQI
15th Jul 2025167 PMAQI
15th Jul 2025268 PMAQI
15th Jul 2025419 PMAQI
15th Jul 20254210 PMAQI
15th Jul 20253811 PMAQI
16th Jul 20253912 AMAQI
16th Jul 2025441 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025543 AMAQI
20°C15/25°C
16th Jul 2025524 AMAQI
16th Jul 2025515 AMAQI
16th Jul 2025516 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025319 AMAQI
16th Jul 20254910 AMAQI
16th Jul 20255511 AMAQI
16th Jul 20255712 PMAQI
16th Jul 2025471 PMAQI
16th Jul 2025562 PMAQI
16th Jul 2025253 PMAQI
16th Jul 2025284 PMAQI
16th Jul 2025405 PMAQI
16th Jul 2025356 PMAQI
16th Jul 2025317 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025409 PMAQI
16th Jul 20253910 PMAQI
16th Jul 20253811 PMAQI
17th Jul 20253412 AMAQI
17th Jul 2025401 AMAQI
17th Jul 2025502 AMAQI
17th Jul 2025513 AMAQI
20°C15/27°C
17th Jul 2025514 AMAQI
17th Jul 2025525 AMAQI
17th Jul 2025506 AMAQI
17th Jul 2025517 AMAQI
17th Jul 2025518 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20251910 AMAQI
17th Jul 20252011 AMAQI
17th Jul 20252512 PMAQI
17th Jul 2025241 PMAQI
17th Jul 2025262 PMAQI
17th Jul 2025283 PMAQI
17th Jul 2025304 PMAQI
17th Jul 2025345 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025287 PMAQI
17th Jul 2025328 PMAQI
17th Jul 2025409 PMAQI
17th Jul 20254010 PMAQI
17th Jul 20254011 PMAQI
18th Jul 20254112 AMAQI
18th Jul 2025421 AMAQI
18th Jul 2025482 AMAQI
18th Jul 2025483 AMAQI
19°C15/25°C
18th Jul 2025474 AMAQI
18th Jul 2025435 AMAQI
18th Jul 2025446 AMAQI
18th Jul 2025447 AMAQI
18th Jul 2025438 AMAQI
18th Jul 2025249 AMAQI
18th Jul 20252110 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252812 PMAQI
18th Jul 2025331 PMAQI
18th Jul 2025332 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025304 PMAQI
18th Jul 2025345 PMAQI
18th Jul 2025406 PMAQI
18th Jul 2025407 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025369 PMAQI
18th Jul 20253710 PMAQI
18th Jul 20253611 PMAQI
19th Jul 20253612 AMAQI
19th Jul 2025371 AMAQI
19th Jul 2025442 AMAQI
19th Jul 2025463 AMAQI
20°C14/29°C
19th Jul 2025444 AMAQI
19th Jul 2025425 AMAQI
19th Jul 2025426 AMAQI
19th Jul 2025437 AMAQI
19th Jul 2025428 AMAQI
19th Jul 2025309 AMAQI
19th Jul 20253710 AMAQI
19th Jul 20253311 AMAQI
19th Jul 20252512 PMAQI
19th Jul 2025251 PMAQI
19th Jul 2025252 PMAQI
19th Jul 2025263 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025315 PMAQI
19th Jul 2025286 PMAQI
19th Jul 2025347 PMAQI
19th Jul 2025368 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253910 PMAQI
19th Jul 20253911 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025432 AMAQI
20th Jul 2025433 AMAQI
22°C15/30°C
20th Jul 2025424 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025418 AMAQI
20th Jul 2025339 AMAQI
20th Jul 20254110 AMAQI
20th Jul 20253311 AMAQI
20th Jul 20253012 PMAQI
20th Jul 2025301 PMAQI
20th Jul 2025342 PMAQI
20th Jul 2025323 PMAQI
20th Jul 2025354 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025406 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025288 PMAQI
20th Jul 2025329 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253212 AMAQI
21st Jul 2025341 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025423 AMAQI
23°C16/32°C
21st Jul 2025404 AMAQI
21st Jul 2025395 AMAQI
21st Jul 2025396 AMAQI
21st Jul 2025407 AMAQI
21st Jul 2025398 AMAQI
21st Jul 2025279 AMAQI
21st Jul 20253710 AMAQI
21st Jul 20254811 AMAQI
21st Jul 20255312 PMAQI
21st Jul 2025521 PMAQI
21st Jul 2025492 PMAQI
21st Jul 2025483 PMAQI
21st Jul 2025454 PMAQI
21st Jul 2025535 PMAQI
21st Jul 2025566 PMAQI
21st Jul 2025417 PMAQI
21st Jul 2025408 PMAQI
21st Jul 2025409 PMAQI
21st Jul 20253810 PMAQI
21st Jul 20254011 PMAQI
22nd Jul 20253912 AMAQI
22nd Jul 2025391 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025383 AMAQI
25°C17/33°C
22nd Jul 2025394 AMAQI
22nd Jul 2025405 AMAQI
22nd Jul 2025396 AMAQI
22nd Jul 2025407 AMAQI
22nd Jul 2025408 AMAQI
22nd Jul 2025309 AMAQI
22nd Jul 20255010 AMAQI
22nd Jul 20254911 AMAQI
22nd Jul 20255212 PMAQI
22nd Jul 2025511 PMAQI
22nd Jul 2025482 PMAQI
22nd Jul 2025453 PMAQI
22nd Jul 2025424 PMAQI
22nd Jul 2025285 PMAQI
22nd Jul 2025326 PMAQI
22nd Jul 2025287 PMAQI
22nd Jul 2025288 PMAQI
22nd Jul 2025339 PMAQI
22nd Jul 20253210 PMAQI
22nd Jul 20253311 PMAQI
23rd Jul 20253412 AMAQI
23rd Jul 2025361 AMAQI
23rd Jul 2025392 AMAQI
23rd Jul 2025403 AMAQI
25°C19/32°C
23rd Jul 2025404 AMAQI
23rd Jul 2025425 AMAQI
23rd Jul 2025436 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025429 AMAQI
23rd Jul 20254010 AMAQI
23rd Jul 20255911 AMAQI
23rd Jul 20255912 PMAQI
23rd Jul 2025581 PMAQI
23rd Jul 2025602 PMAQI
23rd Jul 2025603 PMAQI
23rd Jul 2025594 PMAQI
23rd Jul 2025575 PMAQI
23rd Jul 2025476 PMAQI
23rd Jul 2025397 PMAQI
23rd Jul 2025288 PMAQI
23rd Jul 2025339 PMAQI
23rd Jul 20253310 PMAQI
23rd Jul 20253311 PMAQI
24th Jul 20253212 AMAQI
24th Jul 2025351 AMAQI
24th Jul 2025402 AMAQI
24th Jul 2025403 AMAQI
25°C20/33°C
24th Jul 2025434 AMAQI
24th Jul 2025455 AMAQI
24th Jul 2025446 AMAQI
24th Jul 2025467 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025499 AMAQI
24th Jul 20255710 AMAQI
24th Jul 20255911 AMAQI
24th Jul 20256212 PMAQI
24th Jul 2025591 PMAQI
24th Jul 2025582 PMAQI
24th Jul 2025593 PMAQI
24th Jul 2025624 PMAQI
24th Jul 2025605 PMAQI
24th Jul 2025496 PMAQI
24th Jul 2025467 PMAQI
24th Jul 2025428 PMAQI
24th Jul 2025419 PMAQI
24th Jul 20253310 PMAQI
24th Jul 20253211 PMAQI
25th Jul 20254012 AMAQI
25th Jul 2025381 AMAQI
25th Jul 2025422 AMAQI
25th Jul 2025403 AMAQI
25°C19/32°C
25th Jul 2025444 AMAQI
25th Jul 2025485 AMAQI
25th Jul 2025476 AMAQI
25th Jul 2025467 AMAQI
25th Jul 2025468 AMAQI
25th Jul 2025449 AMAQI
25th Jul 20255010 AMAQI
25th Jul 20255611 AMAQI
25th Jul 20255912 PMAQI
25th Jul 2025581 PMAQI
25th Jul 2025562 PMAQI
25th Jul 2025523 PMAQI
25th Jul 2025504 PMAQI
25th Jul 2025445 PMAQI
25th Jul 2025406 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025308 PMAQI
25th Jul 2025369 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253411 PMAQI
26th Jul 20253312 AMAQI
26th Jul 2025341 AMAQI
26th Jul 2025442 AMAQI
26th Jul 2025443 AMAQI
25°C17/33°C
26th Jul 2025464 AMAQI
26th Jul 2025485 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025477 AMAQI
26th Jul 2025478 AMAQI
26th Jul 2025329 AMAQI
26th Jul 20253410 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20256112 PMAQI
26th Jul 2025561 PMAQI
26th Jul 2025522 PMAQI
26th Jul 2025523 PMAQI
26th Jul 2025424 PMAQI
26th Jul 2025345 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025307 PMAQI
26th Jul 2025348 PMAQI
26th Jul 2025359 PMAQI
26th Jul 20253410 PMAQI
26th Jul 20253611 PMAQI
27th Jul 20253512 AMAQI
27th Jul 2025371 AMAQI
27th Jul 2025442 AMAQI
27th Jul 2025443 AMAQI
23°C16/33°C
27th Jul 2025444 AMAQI
27th Jul 2025475 AMAQI
27th Jul 2025476 AMAQI
27th Jul 2025467 AMAQI
27th Jul 2025468 AMAQI
27th Jul 2025339 AMAQI
27th Jul 20252610 AMAQI
27th Jul 20254711 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025431 PMAQI
27th Jul 2025452 PMAQI
27th Jul 2025463 PMAQI
27th Jul 2025404 PMAQI
27th Jul 2025415 PMAQI
27th Jul 2025496 PMAQI
27th Jul 2025447 PMAQI
27th Jul 2025458 PMAQI
27th Jul 2025469 PMAQI
27th Jul 20254510 PMAQI
27th Jul 20254711 PMAQI
28th Jul 20254612 AMAQI
28th Jul 2025461 AMAQI
28th Jul 2025462 AMAQI
28th Jul 2025443 AMAQI
24°C17/33°C
28th Jul 2025444 AMAQI
28th Jul 2025445 AMAQI
28th Jul 2025446 AMAQI
28th Jul 2025447 AMAQI
28th Jul 2025448 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20253510 AMAQI
28th Jul 20255011 AMAQI
28th Jul 20254512 PMAQI
28th Jul 2025481 PMAQI
28th Jul 2025502 PMAQI
28th Jul 2025443 PMAQI
28th Jul 2025494 PMAQI
28th Jul 2025635 PMAQI
28th Jul 2025596 PMAQI
28th Jul 2025557 PMAQI
28th Jul 2025518 PMAQI
28th Jul 2025369 PMAQI
28th Jul 20254210 PMAQI
28th Jul 20254811 PMAQI
29th Jul 20254412 AMAQI
29th Jul 2025431 AMAQI
29th Jul 2025432 AMAQI
29th Jul 2025423 AMAQI
25°C18/33°C
29th Jul 2025444 AMAQI
29th Jul 2025445 AMAQI
29th Jul 2025446 AMAQI
29th Jul 2025447 AMAQI
29th Jul 2025458 AMAQI
29th Jul 2025489 AMAQI
29th Jul 20255010 AMAQI
29th Jul 20255711 AMAQI
29th Jul 20255512 PMAQI
29th Jul 2025541 PMAQI
29th Jul 2025512 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025544 PMAQI
29th Jul 2025535 PMAQI
29th Jul 2025536 PMAQI
29th Jul 2025547 PMAQI
29th Jul 2025558 PMAQI
29th Jul 2025509 PMAQI
29th Jul 20255110 PMAQI
29th Jul 20255011 PMAQI
30th Jul 20254712 AMAQI
30th Jul 2025461 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025423 AMAQI
25°C18/35°C
30th Jul 2025434 AMAQI
30th Jul 2025445 AMAQI
30th Jul 2025456 AMAQI
30th Jul 2025457 AMAQI
30th Jul 2025448 AMAQI
30th Jul 2025429 AMAQI
30th Jul 20255110 AMAQI
30th Jul 20254411 AMAQI
30th Jul 20254512 PMAQI
30th Jul 2025501 PMAQI
30th Jul 2025532 PMAQI
30th Jul 2025523 PMAQI
30th Jul 2025494 PMAQI
30th Jul 2025525 PMAQI
30th Jul 2025526 PMAQI
30th Jul 2025487 PMAQI
30th Jul 2025388 PMAQI
30th Jul 2025449 PMAQI
30th Jul 20254310 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20253912 AMAQI
31st Jul 2025381 AMAQI
31st Jul 2025452 AMAQI
31st Jul 2025453 AMAQI
25°C17/34°C
31st Jul 2025444 AMAQI
31st Jul 2025445 AMAQI
31st Jul 2025446 AMAQI
31st Jul 2025447 AMAQI
31st Jul 2025448 AMAQI
31st Jul 2025449 AMAQI
31st Jul 20254410 AMAQI
31st Jul 20254811 AMAQI
31st Jul 20254812 PMAQI
31st Jul 2025541 PMAQI
31st Jul 2025532 PMAQI
31st Jul 2025483 PMAQI
31st Jul 2025514 PMAQI
31st Jul 2025505 PMAQI
31st Jul 2025476 PMAQI
31st Jul 2025427 PMAQI
31st Jul 2025358 PMAQI
31st Jul 2025399 PMAQI
31st Jul 20253810 PMAQI
31st Jul 20253411 PMAQI
1st Aug 20253712 AMAQI
1st Aug 2025361 AMAQI
1st Aug 2025332 AMAQI
1st Aug 2025373 AMAQI
24°C15/33°C
1st Aug 2025364 AMAQI
1st Aug 2025355 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025367 AMAQI
1st Aug 2025388 AMAQI
1st Aug 2025289 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20254011 AMAQI
1st Aug 20254712 PMAQI
1st Aug 2025501 PMAQI
1st Aug 2025342 PMAQI
1st Aug 2025303 PMAQI
1st Aug 2025464 PMAQI
1st Aug 2025385 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025437 PMAQI
1st Aug 2025308 PMAQI
1st Aug 2025369 PMAQI
1st Aug 20253510 PMAQI
1st Aug 20253111 PMAQI
2nd Aug 20253412 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025372 AMAQI
2nd Aug 2025393 AMAQI
24°C17/33°C
2nd Aug 2025404 AMAQI
2nd Aug 2025425 AMAQI
2nd Aug 2025426 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025418 AMAQI
2nd Aug 2025449 AMAQI
2nd Aug 20253810 AMAQI
2nd Aug 20254511 AMAQI
2nd Aug 20253412 PMAQI
2nd Aug 2025411 PMAQI
2nd Aug 2025542 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025474 PMAQI
2nd Aug 2025505 PMAQI
2nd Aug 2025486 PMAQI
2nd Aug 2025457 PMAQI
2nd Aug 2025468 PMAQI
2nd Aug 2025429 PMAQI
2nd Aug 20254010 PMAQI
2nd Aug 20254611 PMAQI
3rd Aug 20253412 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025402 AMAQI
3rd Aug 2025393 AMAQI
27°C18/36°C
3rd Aug 2025424 AMAQI
3rd Aug 2025415 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025398 AMAQI
3rd Aug 2025439 AMAQI
3rd Aug 20254610 AMAQI
3rd Aug 20255211 AMAQI
3rd Aug 20255812 PMAQI
3rd Aug 2025541 PMAQI
3rd Aug 2025552 PMAQI
3rd Aug 2025443 PMAQI
3rd Aug 2025574 PMAQI
3rd Aug 2025565 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025588 PMAQI
3rd Aug 2025489 PMAQI
3rd Aug 20255010 PMAQI
3rd Aug 20254711 PMAQI
4th Aug 20254112 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI
26°C20/33°C
4th Aug 2025444 AMAQI
4th Aug 2025455 AMAQI
4th Aug 2025456 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025468 AMAQI
4th Aug 2025579 AMAQI
4th Aug 20256810 AMAQI
4th Aug 20257911 AMAQI
4th Aug 20257812 PMAQI
4th Aug 2025731 PMAQI
4th Aug 2025822 PMAQI
4th Aug 2025763 PMAQI
4th Aug 2025884 PMAQI
4th Aug 2025715 PMAQI
4th Aug 2025726 PMAQI
4th Aug 2025697 PMAQI
4th Aug 2025638 PMAQI
4th Aug 2025599 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255511 PMAQI
5th Aug 20255612 AMAQI
5th Aug 2025491 AMAQI
5th Aug 2025442 AMAQI
5th Aug 2025433 AMAQI
26°C19/33°C
5th Aug 2025514 AMAQI
4 AM5th Aug 2025545 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025547 AMAQI
5th Aug 2025528 AMAQI
5th Aug 2025549 AMAQI
5th Aug 20256010 AMAQI
5th Aug 20255511 AMAQI
11 AM5th Aug 20255912 PMAQI
5th Aug 2025561 PMAQI
5th Aug 2025482 PMAQI
5th Aug 2025533 PMAQI
5th Aug 2025574 PMAQI
5th Aug 2025505 PMAQI
5th Aug 2025486 PMAQI
6 PM5th Aug 2025577 PMAQI
5th Aug 2025538 PMAQI
5th Aug 2025499 PMAQI
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 2 PM
52AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM
44AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 2 PM (Avg. 52), while the lowest AQI was between 9 AM to 9 AM (Avg. 44).
Night time
Avg. Highest Time
2 AM - 11 PM
46AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM
46AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 11 PM (Avg. 46), while the lowest AQI was between 12 AM to 11 PM (Avg. 46).
2025 Days Vs Air Quality
Kokubo, Kofu, Yamanashi, Japan
2025
88%
190
12%
26
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
190 DaysModerate
26 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 217 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
Kokubo, Kofu, Yamanashi, 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
36AQI
36AQI
2nd January 2025
38AQI
38AQI
3rd January 2025
44AQI
44AQI
4th January 2025
38AQI
38AQI
5th January 2025
36AQI
36AQI
6th January 2025
47AQI
47AQI
7th January 2025
41AQI
41AQI
8th January 2025
40AQI
40AQI
9th January 2025
34AQI
34AQI
10th January 2025
31AQI
31AQI
11th January 2025
35AQI
35AQI
12th January 2025
40AQI
40AQI
13th January 2025
38AQI
38AQI
14th January 2025
43AQI
43AQI
15th January 2025
42AQI
42AQI
16th January 2025
38AQI
38AQI
17th January 2025
35AQI
35AQI
18th January 2025
40AQI
40AQI
19th January 2025
45AQI
45AQI
20th January 2025
50AQI
50AQI
21st January 2025
48AQI
48AQI
22nd January 2025
49AQI
49AQI
23rd January 2025
52AQI
52AQI
24th January 2025
63AQI
63AQI
25th January 2025
44AQI
44AQI
26th January 2025
42AQI
42AQI
27th January 2025
38AQI
38AQI
28th January 2025
43AQI
43AQI
29th January 2025
38AQI
38AQI
30th January 2025
38AQI
38AQI
31st January 2025
41AQI
41AQI
1st February 2025
44AQI
44AQI
2nd February 2025
45AQI
45AQI
3rd February 2025
47AQI
47AQI
4th February 2025
40AQI
40AQI
5th February 2025
37AQI
37AQI
6th February 2025
35AQI
35AQI
7th February 2025
36AQI
36AQI
8th February 2025
33AQI
33AQI
9th February 2025
35AQI
35AQI
10th February 2025
37AQI
37AQI
11th February 2025
35AQI
35AQI
12th February 2025
39AQI
39AQI
13th February 2025
33AQI
33AQI
14th February 2025
44AQI
44AQI
15th February 2025
32AQI
32AQI
16th February 2025
45AQI
45AQI
17th February 2025
41AQI
41AQI
18th February 2025
38AQI
38AQI
19th February 2025
35AQI
35AQI
20th February 2025
34AQI
34AQI
21st February 2025
36AQI
36AQI
22nd February 2025
34AQI
34AQI
23rd February 2025
36AQI
36AQI
24th February 2025
37AQI
37AQI
25th February 2025
43AQI
43AQI
26th February 2025
41AQI
41AQI
27th February 2025
49AQI
49AQI
28th February 2025
51AQI
51AQI
1st March 2025
53AQI
53AQI
2nd March 2025
62AQI
62AQI
3rd March 2025
38AQI
38AQI
4th March 2025
39AQI
39AQI
5th March 2025
33AQI
33AQI
6th March 2025
33AQI
33AQI
7th March 2025
36AQI
36AQI
8th March 2025
38AQI
38AQI
9th March 2025
39AQI
39AQI
10th March 2025
43AQI
43AQI
11th March 2025
41AQI
41AQI
12th March 2025
37AQI
37AQI
13th March 2025
43AQI
43AQI
14th March 2025
50AQI
50AQI
15th March 2025
44AQI
44AQI
16th March 2025
31AQI
31AQI
17th March 2025
33AQI
33AQI
18th March 2025
34AQI
34AQI
19th March 2025
27AQI
27AQI
20th March 2025
36AQI
36AQI
21st March 2025
47AQI
47AQI
22nd March 2025
55AQI
55AQI
23rd March 2025
64AQI
64AQI
24th March 2025
65AQI
65AQI
25th March 2025
76AQI
76AQI
26th March 2025
84AQI
84AQI
27th March 2025
76AQI
76AQI
28th March 2025
51AQI
51AQI
29th March 2025
35AQI
35AQI
30th March 2025
43AQI
43AQI
31st March 2025
33AQI
33AQI
1st April 2025
28AQI
28AQI
2nd April 2025
34AQI
34AQI
3rd April 2025
27AQI
27AQI
4th April 2025
36AQI
36AQI
5th April 2025
38AQI
38AQI
6th April 2025
23AQI
23AQI
7th April 2025
29AQI
29AQI
8th April 2025
27AQI
27AQI
9th April 2025
30AQI
30AQI
10th April 2025
37AQI
37AQI
11th April 2025
31AQI
31AQI
12th April 2025
32AQI
32AQI
13th April 2025
23AQI
23AQI
14th April 2025
30AQI
30AQI
15th April 2025
21AQI
21AQI
16th April 2025
26AQI
26AQI
17th April 2025
34AQI
34AQI
18th April 2025
42AQI
42AQI
19th April 2025
48AQI
48AQI
20th April 2025
39AQI
39AQI
21st April 2025
38AQI
38AQI
22nd April 2025
34AQI
34AQI
23rd April 2025
23AQI
23AQI
24th April 2025
24AQI
24AQI
25th April 2025
28AQI
28AQI
26th April 2025
32AQI
32AQI
27th April 2025
29AQI
29AQI
28th April 2025
36AQI
36AQI
29th April 2025
26AQI
26AQI
30th April 2025
27AQI
27AQI
1st May 2025
28AQI
28AQI
2nd May 2025
24AQI
24AQI
3rd May 2025
22AQI
22AQI
4th May 2025
29AQI
29AQI
5th May 2025
27AQI
27AQI
6th May 2025
25AQI
25AQI
7th May 2025
24AQI
24AQI
8th May 2025
28AQI
28AQI
9th May 2025
26AQI
26AQI
10th May 2025
23AQI
23AQI
11th May 2025
26AQI
26AQI
12th May 2025
26AQI
26AQI
13th May 2025
29AQI
29AQI
14th May 2025
31AQI
31AQI
15th May 2025
32AQI
32AQI
16th May 2025
35AQI
35AQI
17th May 2025
30AQI
30AQI
18th May 2025
34AQI
34AQI
19th May 2025
38AQI
38AQI
20th May 2025
51AQI
51AQI
21st May 2025
51AQI
51AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
41AQI
41AQI
24th May 2025
37AQI
37AQI
25th May 2025
27AQI
27AQI
26th May 2025
26AQI
26AQI
27th May 2025
25AQI
25AQI
28th May 2025
25AQI
25AQI
29th May 2025
30AQI
30AQI
30th May 2025
24AQI
24AQI
31st May 2025
21AQI
21AQI
1st June 2025
22AQI
22AQI
2nd June 2025
25AQI
25AQI
3rd June 2025
25AQI
25AQI
4th June 2025
28AQI
28AQI
5th June 2025
33AQI
33AQI
6th June 2025
32AQI
32AQI
7th June 2025
40AQI
40AQI
8th June 2025
45AQI
45AQI
9th June 2025
40AQI
40AQI
10th June 2025
38AQI
38AQI
11th June 2025
31AQI
31AQI
12th June 2025
35AQI
35AQI
13th June 2025
35AQI
35AQI
14th June 2025
30AQI
30AQI
15th June 2025
30AQI
30AQI
16th June 2025
38AQI
38AQI
17th June 2025
44AQI
44AQI
18th June 2025
50AQI
50AQI
19th June 2025
53AQI
53AQI
20th June 2025
52AQI
52AQI
21st June 2025
45AQI
45AQI
22nd June 2025
30AQI
30AQI
23rd June 2025
30AQI
30AQI
24th June 2025
31AQI
31AQI
25th June 2025
30AQI
30AQI
26th June 2025
29AQI
29AQI
27th June 2025
40AQI
40AQI
28th June 2025
39AQI
39AQI
29th June 2025
41AQI
41AQI
30th June 2025
45AQI
45AQI
1st July 2025
44AQI
44AQI
2nd July 2025
49AQI
49AQI
3rd July 2025
50AQI
50AQI
4th July 2025
51AQI
51AQI
5th July 2025
56AQI
56AQI
6th July 2025
62AQI
62AQI
7th July 2025
69AQI
69AQI
8th July 2025
73AQI
73AQI
9th July 2025
77AQI
77AQI
10th July 2025
67AQI
67AQI
11th July 2025
51AQI
51AQI
12th July 2025
49AQI
49AQI
13th July 2025
52AQI
52AQI
14th July 2025
43AQI
43AQI
15th July 2025
37AQI
37AQI
16th July 2025
44AQI
44AQI
17th July 2025
37AQI
37AQI
18th July 2025
37AQI
37AQI
19th July 2025
36AQI
36AQI
20th July 2025
36AQI
36AQI
21st July 2025
42AQI
42AQI
22nd July 2025
38AQI
38AQI
23rd July 2025
43AQI
43AQI
24th July 2025
46AQI
46AQI
25th July 2025
43AQI
43AQI
26th July 2025
41AQI
41AQI
27th July 2025
43AQI
43AQI
28th July 2025
47AQI
47AQI
29th July 2025
49AQI
49AQI
30th July 2025
46AQI
46AQI
31st July 2025
44AQI
44AQI
1st August 2025
37AQI
37AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
47AQI
47AQI
4th August 2025
53AQI
53AQI
42AQI
39AQI
46AQI
31AQI
30AQI
36AQI
48AQI
45AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202539AQI
29
2
27
1
22
9
30
29
2
28
2
22
9
3
1
190
26
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
May30AQI
202448AQI
25
6
25
4
22
9
12
18
18
13
14
16
6
25
6
23
2
15
15
30
1
28
2
29
2
230
134
2
Highest AQI recorded in
August68AQI
Lowest AQI recorded in
October34AQI
202352AQI
26
3
2
26
2
16
15
18
12
21
10
14
16
6
25
6
25
8
22
16
15
17
12
18
13
192
170
2
Highest AQI recorded in
July63AQI
Lowest AQI recorded in
February44AQI
202247AQI
26
5
18
1
22
9
8
9
11
20
10
20
13
8
1
18
10
24
7
17
13
28
3
196
105
Highest AQI recorded in
May55AQI
Lowest AQI recorded in
February40AQI
202142AQI
23
8
23
5
29
1
19
2
23
8
19
11
18
13
20
11
27
3
24
7
20
10
20
11
265
90
Highest AQI recorded in
June49AQI
Lowest AQI recorded in
March33AQI
202039AQI
12
1
18
3
18
20
10
29
2
16
14
1
19
25
6
20
10
22
9
199
55
1
Highest AQI recorded in
August54AQI
Lowest AQI recorded in
September28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
52AQILeast Polluted Year Recorded
2025(Avg.)
39AQIKokubo's annual 2025 AQI (39) shows an average percentage change of -13.5% (improved AQI) compared to previous years: 2020 (39), 2021 (42), 2022 (47), 2023 (52), 2024 (48).
