Ashino, Hokkaido, 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
Ashino, Hokkaido, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2023
50AQILowest AQI recorded on
12th Aug 2024
6AQISame Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 28 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Ashino, Hokkaido, Japan
AQI
Day
Night
.
4 AM10th Aug 2025
6 PM
3 AM11th Aug 2025
Day time
Avg. Highest Time
4AM10th Aug
32AQI
Avg. Lowest Time
10AM10th Aug
16AQI
Night time
Avg. Highest Time
9PM10th Aug
33AQI
Avg. Lowest Time
7PM10th Aug
22AQI
In the last 24 hours,
Ashino's AQI reached its highest point of 33 at 9 PM during the Night, while the lowest point, 16, was recorded at 10 AM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ashino, Hokkaido, Japan
JulAug
12th - 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 - 11th11th
Day
Night
12th Jul 2025444 AMAQI
12th Jul 2025425 AMAQI
12th Jul 2025426 AMAQI
12th Jul 2025437 AMAQI
12th Jul 2025438 AMAQI
12th Jul 2025299 AMAQI
12th Jul 20253510 AMAQI
12th Jul 20253511 AMAQI
12th Jul 20253312 PMAQI
12th Jul 2025391 PMAQI
12th Jul 2025382 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025408 PMAQI
12th Jul 2025449 PMAQI
12th Jul 20254310 PMAQI
12th Jul 20254411 PMAQI
13th Jul 20254312 AMAQI
13th Jul 2025451 AMAQI
13th Jul 2025472 AMAQI
13th Jul 2025483 AMAQI
12°C9/15°C
13th Jul 2025464 AMAQI
13th Jul 2025445 AMAQI
13th Jul 2025446 AMAQI
13th Jul 2025447 AMAQI
13th Jul 2025458 AMAQI
13th Jul 2025389 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20254211 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025381 PMAQI
13th Jul 2025452 PMAQI
13th Jul 2025443 PMAQI
13th Jul 2025394 PMAQI
13th Jul 2025435 PMAQI
13th Jul 2025426 PMAQI
13th Jul 2025387 PMAQI
13th Jul 2025428 PMAQI
13th Jul 2025449 PMAQI
13th Jul 20254510 PMAQI
13th Jul 20254411 PMAQI
14th Jul 20254412 AMAQI
14th Jul 2025441 AMAQI
14th Jul 2025452 AMAQI
14th Jul 2025443 AMAQI
15°C11/18°C
14th Jul 2025474 AMAQI
14th Jul 2025455 AMAQI
14th Jul 2025446 AMAQI
14th Jul 2025437 AMAQI
14th Jul 2025448 AMAQI
14th Jul 2025319 AMAQI
14th Jul 20253510 AMAQI
14th Jul 20253811 AMAQI
14th Jul 20254512 PMAQI
14th Jul 2025441 PMAQI
14th Jul 2025422 PMAQI
14th Jul 2025403 PMAQI
14th Jul 2025444 PMAQI
14th Jul 2025465 PMAQI
14th Jul 2025386 PMAQI
14th Jul 2025317 PMAQI
14th Jul 2025338 PMAQI
14th Jul 2025429 PMAQI
14th Jul 20254210 PMAQI
14th Jul 20254511 PMAQI
15th Jul 20254412 AMAQI
15th Jul 2025421 AMAQI
15th Jul 2025452 AMAQI
15th Jul 2025453 AMAQI
18°C15/20°C
15th Jul 2025464 AMAQI
15th Jul 2025455 AMAQI
15th Jul 2025456 AMAQI
15th Jul 2025457 AMAQI
15th Jul 2025458 AMAQI
15th Jul 2025399 AMAQI
15th Jul 20253110 AMAQI
15th Jul 20253211 AMAQI
15th Jul 20253512 PMAQI
15th Jul 2025301 PMAQI
15th Jul 2025332 PMAQI
15th Jul 2025393 PMAQI
15th Jul 2025444 PMAQI
15th Jul 2025505 PMAQI
15th Jul 2025436 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025488 PMAQI
15th Jul 2025449 PMAQI
15th Jul 20254210 PMAQI
15th Jul 20254411 PMAQI
16th Jul 20254512 AMAQI
16th Jul 2025441 AMAQI
16th Jul 2025462 AMAQI
16th Jul 2025463 AMAQI
19°C18/20°C
16th Jul 2025444 AMAQI
16th Jul 2025445 AMAQI
16th Jul 2025426 AMAQI
16th Jul 2025437 AMAQI
16th Jul 2025438 AMAQI
16th Jul 2025329 AMAQI
16th Jul 20253510 AMAQI
16th Jul 20254011 AMAQI
16th Jul 20254612 PMAQI
16th Jul 2025441 PMAQI
16th Jul 2025472 PMAQI
16th Jul 2025393 PMAQI
16th Jul 2025404 PMAQI
16th Jul 2025465 PMAQI
16th Jul 2025536 PMAQI
16th Jul 2025487 PMAQI
16th Jul 2025438 PMAQI
16th Jul 2025439 PMAQI
16th Jul 20254410 PMAQI
16th Jul 20254311 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025451 AMAQI
17th Jul 2025442 AMAQI
17th Jul 2025443 AMAQI
18°C17/19°C
17th Jul 2025454 AMAQI
17th Jul 2025435 AMAQI
17th Jul 2025436 AMAQI
17th Jul 2025437 AMAQI
17th Jul 2025428 AMAQI
17th Jul 2025349 AMAQI
17th Jul 20252410 AMAQI
17th Jul 20253811 AMAQI
17th Jul 20253412 PMAQI
17th Jul 2025351 PMAQI
17th Jul 2025332 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025364 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025386 PMAQI
17th Jul 2025357 PMAQI
17th Jul 2025398 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254410 PMAQI
17th Jul 20254511 PMAQI
18th Jul 20254512 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025452 AMAQI
18th Jul 2025443 AMAQI
19°C18/20°C
18th Jul 2025454 AMAQI
18th Jul 2025445 AMAQI
18th Jul 2025436 AMAQI
18th Jul 2025437 AMAQI
18th Jul 2025438 AMAQI
18th Jul 2025409 AMAQI
18th Jul 20254910 AMAQI
18th Jul 20255211 AMAQI
18th Jul 20254412 PMAQI
18th Jul 2025451 PMAQI
18th Jul 2025422 PMAQI
18th Jul 2025463 PMAQI
18th Jul 2025464 PMAQI
18th Jul 2025465 PMAQI
18th Jul 2025476 PMAQI
18th Jul 2025467 PMAQI
18th Jul 2025488 PMAQI
18th Jul 2025439 PMAQI
18th Jul 20254410 PMAQI
18th Jul 20254411 PMAQI
19th Jul 20254412 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025462 AMAQI
19th Jul 2025453 AMAQI
20°C18/22°C
19th Jul 2025454 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025446 AMAQI
19th Jul 2025437 AMAQI
19th Jul 2025448 AMAQI
19th Jul 2025329 AMAQI
19th Jul 20252310 AMAQI
19th Jul 20252311 AMAQI
19th Jul 20252912 PMAQI
19th Jul 2025351 PMAQI
19th Jul 2025382 PMAQI
19th Jul 2025373 PMAQI
19th Jul 2025384 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025386 PMAQI
19th Jul 2025357 PMAQI
19th Jul 2025378 PMAQI
19th Jul 2025409 PMAQI
19th Jul 20253910 PMAQI
19th Jul 20254111 PMAQI
20th Jul 20254212 AMAQI
20th Jul 2025431 AMAQI
20th Jul 2025442 AMAQI
20th Jul 2025443 AMAQI
20°C18/23°C
20th Jul 2025454 AMAQI
20th Jul 2025425 AMAQI
20th Jul 2025436 AMAQI
20th Jul 2025437 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025399 AMAQI
20th Jul 20253610 AMAQI
20th Jul 20254011 AMAQI
20th Jul 20253012 PMAQI
20th Jul 2025381 PMAQI
20th Jul 2025392 PMAQI
20th Jul 2025373 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025345 PMAQI
20th Jul 2025446 PMAQI
20th Jul 2025417 PMAQI
20th Jul 2025418 PMAQI
20th Jul 2025429 PMAQI
20th Jul 20254010 PMAQI
20th Jul 20253911 PMAQI
21st Jul 20254212 AMAQI
21st Jul 2025441 AMAQI
21st Jul 2025442 AMAQI
21st Jul 2025443 AMAQI
21°C17/24°C
21st Jul 2025444 AMAQI
21st Jul 2025455 AMAQI
21st Jul 2025426 AMAQI
21st Jul 2025427 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025399 AMAQI
21st Jul 20253810 AMAQI
21st Jul 20253811 AMAQI
21st Jul 20253812 PMAQI
21st Jul 2025421 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025473 PMAQI
21st Jul 2025434 PMAQI
21st Jul 2025355 PMAQI
21st Jul 2025386 PMAQI
21st Jul 2025507 PMAQI
21st Jul 2025438 PMAQI
21st Jul 2025459 PMAQI
21st Jul 20254510 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254412 AMAQI
22nd Jul 2025421 AMAQI
22nd Jul 2025442 AMAQI
22nd Jul 2025463 AMAQI
21°C19/24°C
22nd Jul 2025464 AMAQI
22nd Jul 2025455 AMAQI
22nd Jul 2025436 AMAQI
22nd Jul 2025437 AMAQI
22nd Jul 2025448 AMAQI
22nd Jul 2025469 AMAQI
22nd Jul 20255010 AMAQI
22nd Jul 20254711 AMAQI
22nd Jul 20254412 PMAQI
22nd Jul 2025411 PMAQI
22nd Jul 2025462 PMAQI
22nd Jul 2025493 PMAQI
22nd Jul 2025484 PMAQI
22nd Jul 2025465 PMAQI
22nd Jul 2025466 PMAQI
22nd Jul 2025437 PMAQI
22nd Jul 2025448 PMAQI
22nd Jul 2025499 PMAQI
22nd Jul 20254710 PMAQI
22nd Jul 20254711 PMAQI
23rd Jul 20254512 AMAQI
23rd Jul 2025461 AMAQI
23rd Jul 2025442 AMAQI
23rd Jul 2025443 AMAQI
23°C20/25°C
23rd Jul 2025434 AMAQI
23rd Jul 2025455 AMAQI
23rd Jul 2025446 AMAQI
23rd Jul 2025447 AMAQI
23rd Jul 2025448 AMAQI
23rd Jul 2025489 AMAQI
23rd Jul 20254810 AMAQI
23rd Jul 20254811 AMAQI
23rd Jul 20254712 PMAQI
23rd Jul 2025401 PMAQI
23rd Jul 2025382 PMAQI
23rd Jul 2025383 PMAQI
23rd Jul 2025434 PMAQI
23rd Jul 2025405 PMAQI
23rd Jul 2025486 PMAQI
23rd Jul 2025537 PMAQI
23rd Jul 2025468 PMAQI
23rd Jul 2025469 PMAQI
23rd Jul 20254410 PMAQI
23rd Jul 20254611 PMAQI
24th Jul 20254612 AMAQI
24th Jul 2025461 AMAQI
24th Jul 2025462 AMAQI
24th Jul 2025443 AMAQI
23°C20/26°C
24th Jul 2025444 AMAQI
24th Jul 2025445 AMAQI
24th Jul 2025446 AMAQI
24th Jul 2025447 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025449 AMAQI
24th Jul 20255310 AMAQI
24th Jul 20254811 AMAQI
24th Jul 20254612 PMAQI
24th Jul 2025521 PMAQI
24th Jul 2025542 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025374 PMAQI
24th Jul 2025405 PMAQI
24th Jul 2025386 PMAQI
24th Jul 2025427 PMAQI
24th Jul 2025508 PMAQI
24th Jul 2025469 PMAQI
24th Jul 20255010 PMAQI
24th Jul 20255011 PMAQI
25th Jul 20254312 AMAQI
25th Jul 2025461 AMAQI
25th Jul 2025462 AMAQI
25th Jul 2025453 AMAQI
22°C20/25°C
25th Jul 2025454 AMAQI
25th Jul 2025465 AMAQI
25th Jul 2025466 AMAQI
25th Jul 2025457 AMAQI
25th Jul 2025458 AMAQI
25th Jul 2025389 AMAQI
25th Jul 20254110 AMAQI
25th Jul 20254011 AMAQI
25th Jul 20254912 PMAQI
25th Jul 2025451 PMAQI
25th Jul 2025522 PMAQI
25th Jul 2025503 PMAQI
25th Jul 2025424 PMAQI
25th Jul 2025445 PMAQI
25th Jul 2025536 PMAQI
25th Jul 2025537 PMAQI
25th Jul 2025418 PMAQI
25th Jul 2025529 PMAQI
25th Jul 20255010 PMAQI
25th Jul 20255211 PMAQI
26th Jul 20255212 AMAQI
26th Jul 2025461 AMAQI
26th Jul 2025442 AMAQI
26th Jul 2025453 AMAQI
21°C18/24°C
26th Jul 2025454 AMAQI
26th Jul 2025445 AMAQI
26th Jul 2025446 AMAQI
26th Jul 2025457 AMAQI
26th Jul 2025448 AMAQI
26th Jul 2025459 AMAQI
26th Jul 20253710 AMAQI
26th Jul 20254911 AMAQI
26th Jul 20253812 PMAQI
26th Jul 2025381 PMAQI
26th Jul 2025522 PMAQI
26th Jul 2025323 PMAQI
26th Jul 2025444 PMAQI
26th Jul 2025465 PMAQI
26th Jul 2025446 PMAQI
26th Jul 2025457 PMAQI
26th Jul 2025478 PMAQI
26th Jul 2025499 PMAQI
26th Jul 20254310 PMAQI
26th Jul 20254811 PMAQI
27th Jul 20254812 AMAQI
27th Jul 2025451 AMAQI
27th Jul 2025452 AMAQI
27th Jul 2025453 AMAQI
19°C18/21°C
27th Jul 2025464 AMAQI
27th Jul 2025445 AMAQI
27th Jul 2025446 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025448 AMAQI
27th Jul 2025369 AMAQI
27th Jul 20252910 AMAQI
27th Jul 20252711 AMAQI
27th Jul 20253112 PMAQI
27th Jul 2025311 PMAQI
27th Jul 2025302 PMAQI
27th Jul 2025313 PMAQI
27th Jul 2025294 PMAQI
27th Jul 2025285 PMAQI
27th Jul 2025356 PMAQI
27th Jul 2025347 PMAQI
27th Jul 2025368 PMAQI
27th Jul 2025409 PMAQI
27th Jul 20253910 PMAQI
27th Jul 20253811 PMAQI
28th Jul 20254012 AMAQI
28th Jul 2025441 AMAQI
28th Jul 2025442 AMAQI
28th Jul 2025443 AMAQI
19°C18/20°C
28th Jul 2025434 AMAQI
28th Jul 2025425 AMAQI
28th Jul 2025426 AMAQI
28th Jul 2025427 AMAQI
28th Jul 2025428 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20253710 AMAQI
28th Jul 20254811 AMAQI
28th Jul 20254312 PMAQI
28th Jul 2025501 PMAQI
28th Jul 2025382 PMAQI
28th Jul 2025343 PMAQI
28th Jul 2025364 PMAQI
28th Jul 2025405 PMAQI
28th Jul 2025366 PMAQI
28th Jul 2025307 PMAQI
28th Jul 2025378 PMAQI
28th Jul 2025369 PMAQI
28th Jul 20253910 PMAQI
28th Jul 20253611 PMAQI
29th Jul 20253612 AMAQI
29th Jul 2025431 AMAQI
29th Jul 2025422 AMAQI
29th Jul 2025443 AMAQI
18°C17/19°C
29th Jul 2025424 AMAQI
29th Jul 2025435 AMAQI
29th Jul 2025436 AMAQI
29th Jul 2025427 AMAQI
29th Jul 2025428 AMAQI
29th Jul 2025279 AMAQI
29th Jul 20252810 AMAQI
29th Jul 20252511 AMAQI
29th Jul 20252412 PMAQI
29th Jul 2025241 PMAQI
29th Jul 2025322 PMAQI
29th Jul 2025333 PMAQI
29th Jul 2025344 PMAQI
29th Jul 2025315 PMAQI
29th Jul 2025536 PMAQI
29th Jul 2025447 PMAQI
29th Jul 2025448 PMAQI
29th Jul 2025379 PMAQI
29th Jul 20253510 PMAQI
29th Jul 20253811 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025421 AMAQI
30th Jul 2025442 AMAQI
30th Jul 2025433 AMAQI
18°C17/19°C
30th Jul 2025434 AMAQI
30th Jul 2025425 AMAQI
30th Jul 2025416 AMAQI
30th Jul 2025427 AMAQI
30th Jul 2025418 AMAQI
30th Jul 2025329 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20252711 AMAQI
30th Jul 20252312 PMAQI
30th Jul 2025401 PMAQI
30th Jul 2025382 PMAQI
30th Jul 2025223 PMAQI
30th Jul 2025244 PMAQI
30th Jul 2025215 PMAQI
30th Jul 2025206 PMAQI
30th Jul 2025237 PMAQI
30th Jul 2025358 PMAQI
30th Jul 2025479 PMAQI
30th Jul 20254010 PMAQI
30th Jul 20253311 PMAQI
31st Jul 20253412 AMAQI
31st Jul 2025401 AMAQI
31st Jul 2025432 AMAQI
31st Jul 2025423 AMAQI
18°C18/20°C
31st Jul 2025414 AMAQI
31st Jul 2025415 AMAQI
31st Jul 2025416 AMAQI
31st Jul 2025417 AMAQI
31st Jul 2025418 AMAQI
31st Jul 2025419 AMAQI
31st Jul 20254110 AMAQI
31st Jul 20253011 AMAQI
31st Jul 20254212 PMAQI
31st Jul 2025311 PMAQI
31st Jul 2025232 PMAQI
31st Jul 2025313 PMAQI
31st Jul 2025304 PMAQI
31st Jul 2025345 PMAQI
31st Jul 2025336 PMAQI
31st Jul 2025327 PMAQI
31st Jul 2025288 PMAQI
31st Jul 2025409 PMAQI
31st Jul 20253810 PMAQI
31st Jul 20253611 PMAQI
1st Aug 20254112 AMAQI
1st Aug 2025431 AMAQI
1st Aug 2025482 AMAQI
1st Aug 2025513 AMAQI
19°C18/21°C
1st Aug 2025544 AMAQI
1st Aug 2025525 AMAQI
1st Aug 2025546 AMAQI
1st Aug 2025547 AMAQI
1st Aug 2025528 AMAQI
1st Aug 2025439 AMAQI
1st Aug 20254110 AMAQI
1st Aug 20253711 AMAQI
1st Aug 20254012 PMAQI
1st Aug 2025411 PMAQI
1st Aug 2025422 PMAQI
1st Aug 2025343 PMAQI
1st Aug 2025264 PMAQI
1st Aug 2025305 PMAQI
1st Aug 2025346 PMAQI
1st Aug 2025257 PMAQI
1st Aug 2025318 PMAQI
1st Aug 2025339 PMAQI
1st Aug 20253610 PMAQI
1st Aug 20253511 PMAQI
2nd Aug 20253212 AMAQI
2nd Aug 2025391 AMAQI
2nd Aug 2025382 AMAQI
2nd Aug 2025403 AMAQI
20°C17/22°C
2nd Aug 2025394 AMAQI
2nd Aug 2025405 AMAQI
2nd Aug 2025446 AMAQI
2nd Aug 2025417 AMAQI
2nd Aug 2025428 AMAQI
2nd Aug 2025299 AMAQI
2nd Aug 20252610 AMAQI
2nd Aug 20253211 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025361 PMAQI
2nd Aug 2025322 PMAQI
2nd Aug 2025303 PMAQI
2nd Aug 2025344 PMAQI
2nd Aug 2025285 PMAQI
2nd Aug 2025266 PMAQI
2nd Aug 2025367 PMAQI
2nd Aug 2025298 PMAQI
2nd Aug 2025329 PMAQI
2nd Aug 20253210 PMAQI
2nd Aug 20253611 PMAQI
3rd Aug 20252712 AMAQI
3rd Aug 2025351 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025383 AMAQI
20°C19/21°C
3rd Aug 2025364 AMAQI
3rd Aug 2025335 AMAQI
3rd Aug 2025346 AMAQI
3rd Aug 2025347 AMAQI
3rd Aug 2025358 AMAQI
3rd Aug 2025369 AMAQI
3rd Aug 20253410 AMAQI
3rd Aug 20253211 AMAQI
3rd Aug 20253612 PMAQI
3rd Aug 2025391 PMAQI
3rd Aug 2025382 PMAQI
3rd Aug 2025353 PMAQI
3rd Aug 2025374 PMAQI
3rd Aug 2025345 PMAQI
3rd Aug 2025356 PMAQI
3rd Aug 2025317 PMAQI
3rd Aug 2025318 PMAQI
3rd Aug 2025319 PMAQI
3rd Aug 20252910 PMAQI
3rd Aug 20253011 PMAQI
4th Aug 20252812 AMAQI
4th Aug 2025341 AMAQI
4th Aug 2025332 AMAQI
4th Aug 2025373 AMAQI
21°C19/25°C
4th Aug 2025344 AMAQI
4th Aug 2025345 AMAQI
4th Aug 2025346 AMAQI
4th Aug 2025347 AMAQI
4th Aug 2025368 AMAQI
4th Aug 2025289 AMAQI
4th Aug 20253510 AMAQI
4th Aug 20253611 AMAQI
4th Aug 20253012 PMAQI
4th Aug 2025301 PMAQI
4th Aug 2025322 PMAQI
4th Aug 2025333 PMAQI
4th Aug 2025314 PMAQI
4th Aug 2025285 PMAQI
4th Aug 2025266 PMAQI
4th Aug 2025267 PMAQI
4th Aug 2025288 PMAQI
4th Aug 2025319 PMAQI
4th Aug 20253710 PMAQI
4th Aug 20253711 PMAQI
5th Aug 20254012 AMAQI
5th Aug 2025361 AMAQI
5th Aug 2025382 AMAQI
5th Aug 2025343 AMAQI
19°C18/21°C
5th Aug 2025394 AMAQI
5th Aug 2025375 AMAQI
5th Aug 2025356 AMAQI
5th Aug 2025357 AMAQI
5th Aug 2025348 AMAQI
5th Aug 2025209 AMAQI
5th Aug 20252610 AMAQI
5th Aug 20253711 AMAQI
5th Aug 20252612 PMAQI
5th Aug 2025331 PMAQI
5th Aug 2025352 PMAQI
5th Aug 2025293 PMAQI
5th Aug 2025364 PMAQI
5th Aug 2025335 PMAQI
5th Aug 2025346 PMAQI
5th Aug 2025347 PMAQI
5th Aug 2025378 PMAQI
5th Aug 2025399 PMAQI
5th Aug 20253510 PMAQI
5th Aug 20253911 PMAQI
6th Aug 20253512 AMAQI
6th Aug 2025381 AMAQI
6th Aug 2025382 AMAQI
6th Aug 2025363 AMAQI
20°C19/23°C
6th Aug 2025374 AMAQI
6th Aug 2025355 AMAQI
6th Aug 2025346 AMAQI
6th Aug 2025337 AMAQI
6th Aug 2025368 AMAQI
6th Aug 2025389 AMAQI
6th Aug 20253810 AMAQI
6th Aug 20253011 AMAQI
6th Aug 20253512 PMAQI
6th Aug 2025281 PMAQI
6th Aug 2025272 PMAQI
6th Aug 2025293 PMAQI
6th Aug 2025314 PMAQI
6th Aug 2025285 PMAQI
6th Aug 2025296 PMAQI
6th Aug 2025267 PMAQI
6th Aug 2025328 PMAQI
6th Aug 2025379 PMAQI
6th Aug 20253210 PMAQI
6th Aug 20253511 PMAQI
7th Aug 20253712 AMAQI
7th Aug 2025361 AMAQI
7th Aug 2025372 AMAQI
7th Aug 2025373 AMAQI
20°C19/22°C
7th Aug 2025354 AMAQI
7th Aug 2025365 AMAQI
7th Aug 2025346 AMAQI
7th Aug 2025387 AMAQI
7th Aug 2025358 AMAQI
7th Aug 2025349 AMAQI
7th Aug 20253610 AMAQI
7th Aug 20253011 AMAQI
7th Aug 20252812 PMAQI
7th Aug 2025301 PMAQI
7th Aug 2025262 PMAQI
7th Aug 2025183 PMAQI
7th Aug 2025284 PMAQI
7th Aug 2025245 PMAQI
7th Aug 2025216 PMAQI
7th Aug 2025207 PMAQI
7th Aug 2025198 PMAQI
7th Aug 2025289 PMAQI
7th Aug 20252710 PMAQI
7th Aug 20252611 PMAQI
8th Aug 20252812 AMAQI
8th Aug 2025341 AMAQI
8th Aug 2025362 AMAQI
8th Aug 2025363 AMAQI
19°C18/20°C
8th Aug 2025354 AMAQI
8th Aug 2025355 AMAQI
8th Aug 2025356 AMAQI
8th Aug 2025357 AMAQI
8th Aug 2025358 AMAQI
8th Aug 2025259 AMAQI
8th Aug 20252210 AMAQI
8th Aug 20252011 AMAQI
8th Aug 20251912 PMAQI
8th Aug 2025221 PMAQI
8th Aug 2025222 PMAQI
8th Aug 2025193 PMAQI
8th Aug 2025204 PMAQI
8th Aug 2025195 PMAQI
8th Aug 2025166 PMAQI
8th Aug 2025167 PMAQI
8th Aug 2025198 PMAQI
8th Aug 2025259 PMAQI
8th Aug 20252610 PMAQI
8th Aug 20252511 PMAQI
9th Aug 20252612 AMAQI
9th Aug 2025331 AMAQI
9th Aug 2025342 AMAQI
9th Aug 2025343 AMAQI
19°C16/23°C
9th Aug 2025344 AMAQI
9th Aug 2025325 AMAQI
9th Aug 2025316 AMAQI
9th Aug 2025327 AMAQI
9th Aug 2025328 AMAQI
9th Aug 2025209 AMAQI
9th Aug 20251510 AMAQI
9th Aug 20251711 AMAQI
9th Aug 20251612 PMAQI
9th Aug 2025181 PMAQI
9th Aug 2025182 PMAQI
9th Aug 2025213 PMAQI
9th Aug 2025194 PMAQI
9th Aug 2025235 PMAQI
9th Aug 2025216 PMAQI
9th Aug 2025217 PMAQI
9th Aug 2025228 PMAQI
9th Aug 2025309 PMAQI
9th Aug 20252810 PMAQI
9th Aug 20253011 PMAQI
10th Aug 20252812 AMAQI
10th Aug 2025301 AMAQI
10th Aug 2025322 AMAQI
10th Aug 2025323 AMAQI
17°C16/19°C
10th Aug 2025324 AMAQI
10th Aug 2025285 AMAQI
10th Aug 2025296 AMAQI
10th Aug 2025297 AMAQI
10th Aug 2025288 AMAQI
10th Aug 2025249 AMAQI
10th Aug 20251610 AMAQI
10th Aug 20252411 AMAQI
10th Aug 20252412 PMAQI
10th Aug 2025231 PMAQI
10th Aug 2025272 PMAQI
10th Aug 2025283 PMAQI
10th Aug 2025224 PMAQI
10th Aug 2025275 PMAQI
10th Aug 2025236 PMAQI
10th Aug 2025227 PMAQI
10th Aug 2025268 PMAQI
10th Aug 2025339 PMAQI
10th Aug 20253310 PMAQI
10th Aug 20252811 PMAQI
11th Aug 20252612 AMAQI
11th Aug 2025281 AMAQI
11th Aug 2025302 AMAQI
11th Aug 2025303 AMAQI
20°C18/22°C
11th Aug 2025304 AMAQI
4 AM11th Aug 2025285 AMAQI
11th Aug 2025286 AMAQI
11th Aug 2025307 AMAQI
11th Aug 2025308 AMAQI
11th Aug 2025249 AMAQI
11th Aug 20252210 AMAQI
11th Aug 20252611 AMAQI
11 AM11th Aug 20252612 PMAQI
11th Aug 2025351 PMAQI
11th Aug 2025302 PMAQI
11th Aug 2025263 PMAQI
11th Aug 2025304 PMAQI
11th Aug 2025285 PMAQI
11th Aug 2025266 PMAQI
6 PM11th Aug 2025267 PMAQI
11th Aug 2025288 PMAQI
11th Aug 2025289 PMAQI
11th Aug 20253010 PMAQI
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
41AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 AM - 12 PM
34AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 41), while the lowest AQI was between 9 AM to 12 PM (Avg. 34).
Night time
Avg. Highest Time
12 AM - 3 AM
41AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 8 PM
36AQI
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. 41), while the lowest AQI was between 7 PM to 8 PM (Avg. 36).
2025 Days Vs Air Quality
Ashino, Hokkaido, Japan
2025
100%
222
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
222 DaysModerate
0 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 223 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
Ashino, Hokkaido, 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
27AQI
2nd January 2025
26AQI
26AQI
3rd January 2025
25AQI
25AQI
4th January 2025
26AQI
26AQI
5th January 2025
26AQI
26AQI
6th January 2025
31AQI
31AQI
7th January 2025
27AQI
27AQI
8th January 2025
28AQI
28AQI
9th January 2025
27AQI
27AQI
10th January 2025
25AQI
25AQI
11th January 2025
25AQI
25AQI
12th January 2025
26AQI
26AQI
13th January 2025
24AQI
24AQI
14th January 2025
29AQI
29AQI
15th January 2025
31AQI
31AQI
16th January 2025
29AQI
29AQI
17th January 2025
26AQI
26AQI
18th January 2025
24AQI
24AQI
19th January 2025
24AQI
24AQI
20th January 2025
35AQI
35AQI
21st January 2025
31AQI
31AQI
22nd January 2025
38AQI
38AQI
23rd January 2025
40AQI
40AQI
24th January 2025
35AQI
35AQI
25th January 2025
31AQI
31AQI
26th January 2025
29AQI
29AQI
27th January 2025
26AQI
26AQI
28th January 2025
26AQI
26AQI
29th January 2025
25AQI
25AQI
30th January 2025
26AQI
26AQI
31st January 2025
25AQI
25AQI
1st February 2025
25AQI
25AQI
2nd February 2025
25AQI
25AQI
3rd February 2025
23AQI
23AQI
4th February 2025
24AQI
24AQI
5th February 2025
28AQI
28AQI
6th February 2025
25AQI
25AQI
7th February 2025
27AQI
27AQI
8th February 2025
26AQI
26AQI
9th February 2025
26AQI
26AQI
10th February 2025
25AQI
25AQI
11th February 2025
26AQI
26AQI
12th February 2025
31AQI
31AQI
13th February 2025
41AQI
41AQI
14th February 2025
32AQI
32AQI
15th February 2025
43AQI
43AQI
16th February 2025
32AQI
32AQI
17th February 2025
38AQI
38AQI
18th February 2025
30AQI
30AQI
19th February 2025
32AQI
32AQI
20th February 2025
27AQI
27AQI
21st February 2025
27AQI
27AQI
22nd February 2025
27AQI
27AQI
23rd February 2025
26AQI
26AQI
24th February 2025
26AQI
26AQI
25th February 2025
29AQI
29AQI
26th February 2025
39AQI
39AQI
27th February 2025
30AQI
30AQI
28th February 2025
46AQI
46AQI
1st March 2025
47AQI
47AQI
2nd March 2025
39AQI
39AQI
3rd March 2025
38AQI
38AQI
4th March 2025
32AQI
32AQI
5th March 2025
31AQI
31AQI
6th March 2025
30AQI
30AQI
7th March 2025
30AQI
30AQI
8th March 2025
29AQI
29AQI
9th March 2025
32AQI
32AQI
10th March 2025
30AQI
30AQI
11th March 2025
39AQI
39AQI
12th March 2025
47AQI
47AQI
13th March 2025
41AQI
41AQI
14th March 2025
27AQI
27AQI
15th March 2025
27AQI
27AQI
16th March 2025
23AQI
23AQI
17th March 2025
20AQI
20AQI
18th March 2025
22AQI
22AQI
19th March 2025
23AQI
23AQI
20th March 2025
37AQI
37AQI
21st March 2025
46AQI
46AQI
22nd March 2025
41AQI
41AQI
23rd March 2025
31AQI
31AQI
24th March 2025
32AQI
32AQI
25th March 2025
42AQI
42AQI
26th March 2025
29AQI
29AQI
27th March 2025
30AQI
30AQI
28th March 2025
27AQI
27AQI
29th March 2025
25AQI
25AQI
30th March 2025
25AQI
25AQI
31st March 2025
24AQI
24AQI
1st April 2025
30AQI
30AQI
2nd April 2025
27AQI
27AQI
3rd April 2025
23AQI
23AQI
4th April 2025
24AQI
24AQI
5th April 2025
32AQI
32AQI
6th April 2025
32AQI
32AQI
7th April 2025
24AQI
24AQI
8th April 2025
26AQI
26AQI
9th April 2025
28AQI
28AQI
10th April 2025
43AQI
43AQI
11th April 2025
40AQI
40AQI
12th April 2025
32AQI
32AQI
13th April 2025
44AQI
44AQI
14th April 2025
27AQI
27AQI
15th April 2025
22AQI
22AQI
16th April 2025
20AQI
20AQI
17th April 2025
23AQI
23AQI
18th April 2025
22AQI
22AQI
19th April 2025
23AQI
23AQI
20th April 2025
21AQI
21AQI
21st April 2025
19AQI
19AQI
22nd April 2025
19AQI
19AQI
23rd April 2025
19AQI
19AQI
24th April 2025
21AQI
21AQI
25th April 2025
16AQI
16AQI
26th April 2025
35AQI
35AQI
27th April 2025
20AQI
20AQI
28th April 2025
21AQI
21AQI
29th April 2025
15AQI
15AQI
30th April 2025
18AQI
18AQI
1st May 2025
21AQI
21AQI
2nd May 2025
29AQI
29AQI
3rd May 2025
25AQI
25AQI
4th May 2025
35AQI
35AQI
5th May 2025
30AQI
30AQI
6th May 2025
35AQI
35AQI
7th May 2025
29AQI
29AQI
8th May 2025
44AQI
44AQI
9th May 2025
37AQI
37AQI
10th May 2025
29AQI
29AQI
11th May 2025
27AQI
27AQI
12th May 2025
36AQI
36AQI
13th May 2025
34AQI
34AQI
14th May 2025
43AQI
43AQI
15th May 2025
35AQI
35AQI
16th May 2025
45AQI
45AQI
17th May 2025
33AQI
33AQI
18th May 2025
33AQI
33AQI
19th May 2025
40AQI
40AQI
20th May 2025
39AQI
39AQI
21st May 2025
39AQI
39AQI
22nd May 2025
34AQI
34AQI
23rd May 2025
35AQI
35AQI
24th May 2025
33AQI
33AQI
25th May 2025
25AQI
25AQI
26th May 2025
24AQI
24AQI
27th May 2025
28AQI
28AQI
28th May 2025
31AQI
31AQI
29th May 2025
32AQI
32AQI
30th May 2025
39AQI
39AQI
31st May 2025
32AQI
32AQI
1st June 2025
26AQI
26AQI
2nd June 2025
27AQI
27AQI
3rd June 2025
27AQI
27AQI
4th June 2025
22AQI
22AQI
5th June 2025
24AQI
24AQI
6th June 2025
29AQI
29AQI
7th June 2025
41AQI
41AQI
8th June 2025
40AQI
40AQI
9th June 2025
38AQI
38AQI
10th June 2025
44AQI
44AQI
11th June 2025
34AQI
34AQI
12th June 2025
30AQI
30AQI
13th June 2025
31AQI
31AQI
14th June 2025
34AQI
34AQI
15th June 2025
27AQI
27AQI
16th June 2025
28AQI
28AQI
17th June 2025
30AQI
30AQI
18th June 2025
38AQI
38AQI
19th June 2025
40AQI
40AQI
20th June 2025
41AQI
41AQI
21st June 2025
36AQI
36AQI
22nd June 2025
31AQI
31AQI
23rd June 2025
33AQI
33AQI
24th June 2025
36AQI
36AQI
25th June 2025
40AQI
40AQI
26th June 2025
36AQI
36AQI
27th June 2025
37AQI
37AQI
28th June 2025
38AQI
38AQI
29th June 2025
39AQI
39AQI
30th June 2025
41AQI
41AQI
1st July 2025
44AQI
44AQI
2nd July 2025
43AQI
43AQI
3rd July 2025
40AQI
40AQI
4th July 2025
48AQI
48AQI
5th July 2025
42AQI
42AQI
6th July 2025
46AQI
46AQI
7th July 2025
49AQI
49AQI
8th July 2025
49AQI
49AQI
9th July 2025
43AQI
43AQI
10th July 2025
39AQI
39AQI
11th July 2025
39AQI
39AQI
12th July 2025
41AQI
41AQI
13th July 2025
43AQI
43AQI
14th July 2025
42AQI
42AQI
15th July 2025
43AQI
43AQI
16th July 2025
44AQI
44AQI
17th July 2025
41AQI
41AQI
18th July 2025
45AQI
45AQI
19th July 2025
40AQI
40AQI
20th July 2025
41AQI
41AQI
21st July 2025
42AQI
42AQI
22nd July 2025
45AQI
45AQI
23rd July 2025
45AQI
45AQI
24th July 2025
46AQI
46AQI
25th July 2025
47AQI
47AQI
26th July 2025
45AQI
45AQI
27th July 2025
38AQI
38AQI
28th July 2025
40AQI
40AQI
29th July 2025
38AQI
38AQI
30th July 2025
35AQI
35AQI
31st July 2025
37AQI
37AQI
1st August 2025
41AQI
41AQI
2nd August 2025
34AQI
34AQI
3rd August 2025
34AQI
34AQI
4th August 2025
32AQI
32AQI
5th August 2025
34AQI
34AQI
6th August 2025
33AQI
33AQI
7th August 2025
30AQI
30AQI
8th August 2025
26AQI
26AQI
9th August 2025
26AQI
26AQI
10th August 2025
28AQI
28AQI
28AQI
30AQI
32AQI
26AQI
33AQI
34AQI
43AQI
32AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
31
28
31
30
31
30
31
10
222
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
April26AQI
202424AQI
31
27
2
31
30
30
1
30
27
4
31
30
31
30
31
359
7
Highest AQI recorded in
July36AQI
Lowest AQI recorded in
September17AQI
202327AQI
30
27
1
23
8
23
7
29
2
29
1
29
2
31
30
31
22
1
31
335
22
Highest AQI recorded in
March39AQI
Lowest AQI recorded in
December18AQI
202222AQI
3
20
1
31
26
4
31
29
1
24
1
28
28
30
31
282
6
Highest AQI recorded in
April29AQI
Lowest AQI recorded in
August8AQI
202124AQI
30
1
27
1
27
4
29
1
31
30
27
4
31
30
31
30
31
354
11
Highest AQI recorded in
March31AQI
Lowest AQI recorded in
September16AQI
202023AQI
12
1
21
18
30
31
30
1
18
1
31
25
1
30
1
246
5
Highest AQI recorded in
March29AQI
Lowest AQI recorded in
November20AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
32AQILeast Polluted Year Recorded
2022(Avg.)
22AQIAshino's annual 2025 AQI (32) shows an average percentage change of 34.4% (worsened AQI) compared to previous years: 2020 (23), 2021 (24), 2022 (22), 2023 (27), 2024 (24).
