Otaru, 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
Otaru, Hokkaido, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2021
60AQILowest AQI recorded on
8th Aug 2021
18AQISame Day Analysis (7th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 36 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 7th Aug - 8th Aug 2025
Otaru, Hokkaido, Japan
AQI
Day
Night
.
4 AM7th Aug 2025
7 PM
3 AM8th Aug 2025
Day time
Avg. Highest Time
7AM7th Aug
41AQI
Avg. Lowest Time
5PM7th Aug
19AQI
Night time
Avg. Highest Time
2AM8th Aug
38AQI
Avg. Lowest Time
7PM7th Aug
22AQI
In the last 24 hours,
Otaru's AQI reached its highest point of 41 at 7 AM during the Day, while the lowest point, 19, was recorded at 5 PM during the Day between 7th Aug and 8th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Otaru, Hokkaido, Japan
JulAug
09th - 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 - 06th06th - 07th07th - 08th08th
Day
Night
9th Jul 2025514 AMAQI
9th Jul 2025505 AMAQI
9th Jul 2025496 AMAQI
9th Jul 2025507 AMAQI
9th Jul 2025498 AMAQI
9th Jul 2025459 AMAQI
9th Jul 20254010 AMAQI
9th Jul 20254611 AMAQI
9th Jul 20254312 PMAQI
9th Jul 2025351 PMAQI
9th Jul 2025462 PMAQI
9th Jul 2025393 PMAQI
9th Jul 2025364 PMAQI
9th Jul 2025365 PMAQI
9th Jul 2025486 PMAQI
9th Jul 2025347 PMAQI
9th Jul 2025408 PMAQI
9th Jul 2025429 PMAQI
9th Jul 20253810 PMAQI
9th Jul 20253611 PMAQI
10th Jul 20253812 AMAQI
10th Jul 2025481 AMAQI
10th Jul 2025502 AMAQI
10th Jul 2025503 AMAQI
19°C15/23°C
10th Jul 2025504 AMAQI
10th Jul 2025515 AMAQI
10th Jul 2025526 AMAQI
10th Jul 2025517 AMAQI
10th Jul 2025528 AMAQI
10th Jul 2025319 AMAQI
10th Jul 20252710 AMAQI
10th Jul 20252811 AMAQI
10th Jul 20253012 PMAQI
10th Jul 2025271 PMAQI
10th Jul 2025282 PMAQI
10th Jul 2025273 PMAQI
10th Jul 2025344 PMAQI
10th Jul 2025305 PMAQI
10th Jul 2025356 PMAQI
10th Jul 2025237 PMAQI
10th Jul 2025398 PMAQI
10th Jul 2025369 PMAQI
10th Jul 20254010 PMAQI
10th Jul 20253811 PMAQI
11th Jul 20253812 AMAQI
11th Jul 2025471 AMAQI
11th Jul 2025502 AMAQI
11th Jul 2025493 AMAQI
18°C15/21°C
11th Jul 2025464 AMAQI
11th Jul 2025455 AMAQI
11th Jul 2025466 AMAQI
11th Jul 2025467 AMAQI
11th Jul 2025488 AMAQI
11th Jul 2025339 AMAQI
11th Jul 20252610 AMAQI
11th Jul 20252211 AMAQI
11th Jul 20252112 PMAQI
11th Jul 2025321 PMAQI
11th Jul 2025332 PMAQI
11th Jul 2025343 PMAQI
11th Jul 2025344 PMAQI
11th Jul 2025285 PMAQI
11th Jul 2025356 PMAQI
11th Jul 2025367 PMAQI
11th Jul 2025398 PMAQI
11th Jul 2025469 PMAQI
11th Jul 20254110 PMAQI
11th Jul 20253811 PMAQI
12th Jul 20253812 AMAQI
12th Jul 2025461 AMAQI
12th Jul 2025462 AMAQI
12th Jul 2025463 AMAQI
18°C15/20°C
12th Jul 2025464 AMAQI
12th Jul 2025445 AMAQI
12th Jul 2025446 AMAQI
12th Jul 2025447 AMAQI
12th Jul 2025448 AMAQI
12th Jul 2025289 AMAQI
12th Jul 20252710 AMAQI
12th Jul 20253511 AMAQI
12th Jul 20253712 PMAQI
12th Jul 2025381 PMAQI
12th Jul 2025382 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025395 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025397 PMAQI
12th Jul 2025408 PMAQI
12th Jul 2025429 PMAQI
12th Jul 20254310 PMAQI
12th Jul 20254411 PMAQI
13th Jul 20254012 AMAQI
13th Jul 2025481 AMAQI
13th Jul 2025462 AMAQI
13th Jul 2025473 AMAQI
18°C14/22°C
13th Jul 2025444 AMAQI
13th Jul 2025435 AMAQI
13th Jul 2025436 AMAQI
13th Jul 2025447 AMAQI
13th Jul 2025448 AMAQI
13th Jul 2025439 AMAQI
13th Jul 20254010 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025381 PMAQI
13th Jul 2025392 PMAQI
13th Jul 2025443 PMAQI
13th Jul 2025454 PMAQI
13th Jul 2025425 PMAQI
13th Jul 2025446 PMAQI
13th Jul 2025417 PMAQI
13th Jul 2025458 PMAQI
13th Jul 2025489 PMAQI
13th Jul 20254510 PMAQI
13th Jul 20255011 PMAQI
14th Jul 20255012 AMAQI
14th Jul 2025451 AMAQI
14th Jul 2025472 AMAQI
14th Jul 2025463 AMAQI
19°C14/24°C
14th Jul 2025464 AMAQI
14th Jul 2025445 AMAQI
14th Jul 2025466 AMAQI
14th Jul 2025447 AMAQI
14th Jul 2025448 AMAQI
14th Jul 2025389 AMAQI
14th Jul 20253810 AMAQI
14th Jul 20253711 AMAQI
14th Jul 20253612 PMAQI
14th Jul 2025401 PMAQI
14th Jul 2025382 PMAQI
14th Jul 2025443 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025365 PMAQI
14th Jul 2025246 PMAQI
14th Jul 2025247 PMAQI
14th Jul 2025288 PMAQI
14th Jul 2025359 PMAQI
14th Jul 20253410 PMAQI
14th Jul 20253411 PMAQI
15th Jul 20253312 AMAQI
15th Jul 2025341 AMAQI
15th Jul 2025422 AMAQI
15th Jul 2025463 AMAQI
22°C17/28°C
15th Jul 2025464 AMAQI
15th Jul 2025465 AMAQI
15th Jul 2025466 AMAQI
15th Jul 2025467 AMAQI
15th Jul 2025468 AMAQI
15th Jul 2025269 AMAQI
15th Jul 20251810 AMAQI
15th Jul 20252111 AMAQI
15th Jul 20252612 PMAQI
15th Jul 2025291 PMAQI
15th Jul 2025302 PMAQI
15th Jul 2025323 PMAQI
15th Jul 2025394 PMAQI
15th Jul 2025355 PMAQI
15th Jul 2025376 PMAQI
15th Jul 2025397 PMAQI
15th Jul 2025388 PMAQI
15th Jul 2025419 PMAQI
15th Jul 20254910 PMAQI
15th Jul 20254211 PMAQI
16th Jul 20253612 AMAQI
16th Jul 2025431 AMAQI
16th Jul 2025452 AMAQI
16th Jul 2025453 AMAQI
22°C19/25°C
16th Jul 2025424 AMAQI
16th Jul 2025415 AMAQI
16th Jul 2025426 AMAQI
16th Jul 2025427 AMAQI
16th Jul 2025418 AMAQI
16th Jul 2025239 AMAQI
16th Jul 20252210 AMAQI
16th Jul 20252811 AMAQI
16th Jul 20252412 PMAQI
16th Jul 2025281 PMAQI
16th Jul 2025342 PMAQI
16th Jul 2025333 PMAQI
16th Jul 2025324 PMAQI
16th Jul 2025265 PMAQI
16th Jul 2025326 PMAQI
16th Jul 2025337 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025379 PMAQI
16th Jul 20253810 PMAQI
16th Jul 20253911 PMAQI
17th Jul 20254112 AMAQI
17th Jul 2025421 AMAQI
17th Jul 2025432 AMAQI
17th Jul 2025443 AMAQI
23°C20/26°C
17th Jul 2025434 AMAQI
17th Jul 2025405 AMAQI
17th Jul 2025426 AMAQI
17th Jul 2025407 AMAQI
17th Jul 2025408 AMAQI
17th Jul 2025409 AMAQI
17th Jul 20254710 AMAQI
17th Jul 20253811 AMAQI
17th Jul 20255012 PMAQI
17th Jul 2025431 PMAQI
17th Jul 2025462 PMAQI
17th Jul 2025453 PMAQI
17th Jul 2025544 PMAQI
17th Jul 2025525 PMAQI
17th Jul 2025526 PMAQI
17th Jul 2025527 PMAQI
17th Jul 2025508 PMAQI
17th Jul 2025509 PMAQI
17th Jul 20255110 PMAQI
17th Jul 20254711 PMAQI
18th Jul 20254812 AMAQI
18th Jul 2025431 AMAQI
18th Jul 2025422 AMAQI
18th Jul 2025423 AMAQI
23°C20/26°C
18th Jul 2025444 AMAQI
18th Jul 2025435 AMAQI
18th Jul 2025426 AMAQI
18th Jul 2025427 AMAQI
18th Jul 2025418 AMAQI
18th Jul 2025439 AMAQI
18th Jul 20253910 AMAQI
18th Jul 20253811 AMAQI
18th Jul 20252512 PMAQI
18th Jul 2025251 PMAQI
18th Jul 2025322 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025284 PMAQI
18th Jul 2025245 PMAQI
18th Jul 2025246 PMAQI
18th Jul 2025317 PMAQI
18th Jul 2025308 PMAQI
18th Jul 2025379 PMAQI
18th Jul 20253610 PMAQI
18th Jul 20253711 PMAQI
19th Jul 20253712 AMAQI
19th Jul 2025421 AMAQI
19th Jul 2025432 AMAQI
19th Jul 2025443 AMAQI
22°C20/25°C
19th Jul 2025434 AMAQI
19th Jul 2025425 AMAQI
19th Jul 2025426 AMAQI
19th Jul 2025417 AMAQI
19th Jul 2025418 AMAQI
19th Jul 2025379 AMAQI
19th Jul 20253210 AMAQI
19th Jul 20253111 AMAQI
19th Jul 20252912 PMAQI
19th Jul 2025251 PMAQI
19th Jul 2025372 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025325 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253410 PMAQI
19th Jul 20253511 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025423 AMAQI
21°C20/24°C
20th Jul 2025424 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025379 AMAQI
20th Jul 20253010 AMAQI
20th Jul 20253611 AMAQI
20th Jul 20254012 PMAQI
20th Jul 2025381 PMAQI
20th Jul 2025362 PMAQI
20th Jul 2025363 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025326 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025328 PMAQI
20th Jul 2025389 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253812 AMAQI
21st Jul 2025401 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025403 AMAQI
22°C20/26°C
21st Jul 2025404 AMAQI
21st Jul 2025395 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025459 AMAQI
21st Jul 20254710 AMAQI
21st Jul 20254211 AMAQI
21st Jul 20253612 PMAQI
21st Jul 2025441 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025403 PMAQI
21st Jul 2025364 PMAQI
21st Jul 2025405 PMAQI
21st Jul 2025416 PMAQI
21st Jul 2025357 PMAQI
21st Jul 2025428 PMAQI
21st Jul 2025439 PMAQI
21st Jul 20254410 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254112 AMAQI
22nd Jul 2025421 AMAQI
22nd Jul 2025412 AMAQI
22nd Jul 2025413 AMAQI
23°C19/27°C
22nd Jul 2025404 AMAQI
22nd Jul 2025415 AMAQI
22nd Jul 2025406 AMAQI
22nd Jul 2025407 AMAQI
22nd Jul 2025408 AMAQI
22nd Jul 2025479 AMAQI
22nd Jul 20254510 AMAQI
22nd Jul 20254411 AMAQI
22nd Jul 20254512 PMAQI
22nd Jul 2025511 PMAQI
22nd Jul 2025482 PMAQI
22nd Jul 2025523 PMAQI
22nd Jul 2025504 PMAQI
22nd Jul 2025445 PMAQI
22nd Jul 2025436 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025428 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20254210 PMAQI
22nd Jul 20254211 PMAQI
23rd Jul 20254012 AMAQI
23rd Jul 2025401 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025403 AMAQI
23°C20/27°C
23rd Jul 2025414 AMAQI
23rd Jul 2025415 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025449 AMAQI
23rd Jul 20254910 AMAQI
23rd Jul 20253111 AMAQI
23rd Jul 20253312 PMAQI
23rd Jul 2025361 PMAQI
23rd Jul 2025312 PMAQI
23rd Jul 2025283 PMAQI
23rd Jul 2025324 PMAQI
23rd Jul 2025255 PMAQI
23rd Jul 2025366 PMAQI
23rd Jul 2025287 PMAQI
23rd Jul 2025328 PMAQI
23rd Jul 2025419 PMAQI
23rd Jul 20253810 PMAQI
23rd Jul 20253711 PMAQI
24th Jul 20253812 AMAQI
24th Jul 2025401 AMAQI
24th Jul 2025412 AMAQI
24th Jul 2025413 AMAQI
23°C20/28°C
24th Jul 2025404 AMAQI
24th Jul 2025405 AMAQI
24th Jul 2025406 AMAQI
24th Jul 2025407 AMAQI
24th Jul 2025408 AMAQI
24th Jul 2025339 AMAQI
24th Jul 20253810 AMAQI
24th Jul 20254111 AMAQI
24th Jul 20253112 PMAQI
24th Jul 2025401 PMAQI
24th Jul 2025462 PMAQI
24th Jul 2025373 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025305 PMAQI
24th Jul 2025246 PMAQI
24th Jul 2025337 PMAQI
24th Jul 2025348 PMAQI
24th Jul 2025389 PMAQI
24th Jul 20253810 PMAQI
24th Jul 20253611 PMAQI
25th Jul 20253912 AMAQI
25th Jul 2025401 AMAQI
25th Jul 2025402 AMAQI
25th Jul 2025403 AMAQI
23°C19/28°C
25th Jul 2025404 AMAQI
25th Jul 2025405 AMAQI
25th Jul 2025406 AMAQI
25th Jul 2025397 AMAQI
25th Jul 2025398 AMAQI
25th Jul 2025389 AMAQI
25th Jul 20254010 AMAQI
25th Jul 20255011 AMAQI
25th Jul 20254612 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025402 PMAQI
25th Jul 2025353 PMAQI
25th Jul 2025334 PMAQI
25th Jul 2025325 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025397 PMAQI
25th Jul 2025368 PMAQI
25th Jul 2025409 PMAQI
25th Jul 20253710 PMAQI
25th Jul 20253911 PMAQI
26th Jul 20253812 AMAQI
26th Jul 2025401 AMAQI
26th Jul 2025402 AMAQI
26th Jul 2025403 AMAQI
23°C19/28°C
26th Jul 2025404 AMAQI
26th Jul 2025405 AMAQI
26th Jul 2025406 AMAQI
26th Jul 2025417 AMAQI
26th Jul 2025408 AMAQI
26th Jul 2025359 AMAQI
26th Jul 20253610 AMAQI
26th Jul 20253411 AMAQI
26th Jul 20253612 PMAQI
26th Jul 2025431 PMAQI
26th Jul 2025422 PMAQI
26th Jul 2025383 PMAQI
26th Jul 2025404 PMAQI
26th Jul 2025435 PMAQI
26th Jul 2025476 PMAQI
26th Jul 2025477 PMAQI
26th Jul 2025448 PMAQI
26th Jul 2025399 PMAQI
26th Jul 20253910 PMAQI
26th Jul 20255011 PMAQI
27th Jul 20254612 AMAQI
27th Jul 2025401 AMAQI
27th Jul 2025392 AMAQI
27th Jul 2025393 AMAQI
22°C20/24°C
27th Jul 2025394 AMAQI
27th Jul 2025405 AMAQI
27th Jul 2025406 AMAQI
27th Jul 2025407 AMAQI
27th Jul 2025398 AMAQI
27th Jul 2025379 AMAQI
27th Jul 20254610 AMAQI
27th Jul 20254611 AMAQI
27th Jul 20254212 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025342 PMAQI
27th Jul 2025373 PMAQI
27th Jul 2025364 PMAQI
27th Jul 2025345 PMAQI
27th Jul 2025346 PMAQI
27th Jul 2025407 PMAQI
27th Jul 2025388 PMAQI
27th Jul 2025399 PMAQI
27th Jul 20253910 PMAQI
27th Jul 20253911 PMAQI
28th Jul 20253812 AMAQI
28th Jul 2025391 AMAQI
28th Jul 2025402 AMAQI
28th Jul 2025413 AMAQI
22°C20/24°C
28th Jul 2025404 AMAQI
28th Jul 2025405 AMAQI
28th Jul 2025406 AMAQI
28th Jul 2025407 AMAQI
28th Jul 2025408 AMAQI
28th Jul 2025439 AMAQI
28th Jul 20253710 AMAQI
28th Jul 20253811 AMAQI
28th Jul 20254012 PMAQI
28th Jul 2025421 PMAQI
28th Jul 2025432 PMAQI
28th Jul 2025463 PMAQI
28th Jul 2025474 PMAQI
28th Jul 2025395 PMAQI
28th Jul 2025406 PMAQI
28th Jul 2025477 PMAQI
28th Jul 2025458 PMAQI
28th Jul 2025489 PMAQI
28th Jul 20254910 PMAQI
28th Jul 20254911 PMAQI
29th Jul 20254912 AMAQI
29th Jul 2025401 AMAQI
29th Jul 2025422 AMAQI
29th Jul 2025423 AMAQI
22°C20/23°C
29th Jul 2025424 AMAQI
29th Jul 2025415 AMAQI
29th Jul 2025426 AMAQI
29th Jul 2025427 AMAQI
29th Jul 2025428 AMAQI
29th Jul 2025499 AMAQI
29th Jul 20255310 AMAQI
29th Jul 20254911 AMAQI
29th Jul 20255412 PMAQI
29th Jul 2025501 PMAQI
29th Jul 2025462 PMAQI
29th Jul 2025423 PMAQI
29th Jul 2025374 PMAQI
29th Jul 2025365 PMAQI
29th Jul 2025376 PMAQI
29th Jul 2025367 PMAQI
29th Jul 2025408 PMAQI
29th Jul 2025409 PMAQI
29th Jul 20253910 PMAQI
29th Jul 20253911 PMAQI
30th Jul 20254112 AMAQI
30th Jul 2025421 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025443 AMAQI
23°C21/25°C
30th Jul 2025444 AMAQI
30th Jul 2025445 AMAQI
30th Jul 2025456 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025448 AMAQI
30th Jul 2025349 AMAQI
30th Jul 20253310 AMAQI
30th Jul 20254611 AMAQI
30th Jul 20254012 PMAQI
30th Jul 2025361 PMAQI
30th Jul 2025322 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025444 PMAQI
30th Jul 2025395 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025377 PMAQI
30th Jul 2025388 PMAQI
30th Jul 2025449 PMAQI
30th Jul 20254110 PMAQI
30th Jul 20253711 PMAQI
31st Jul 20253812 AMAQI
31st Jul 2025431 AMAQI
31st Jul 2025442 AMAQI
31st Jul 2025443 AMAQI
23°C20/25°C
31st Jul 2025424 AMAQI
31st Jul 2025425 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025429 AMAQI
31st Jul 20254210 AMAQI
31st Jul 20253611 AMAQI
31st Jul 20252912 PMAQI
31st Jul 2025321 PMAQI
31st Jul 2025262 PMAQI
31st Jul 2025233 PMAQI
31st Jul 2025324 PMAQI
31st Jul 2025355 PMAQI
31st Jul 2025336 PMAQI
31st Jul 2025317 PMAQI
31st Jul 2025378 PMAQI
31st Jul 2025369 PMAQI
31st Jul 20253610 PMAQI
31st Jul 20252911 PMAQI
1st Aug 20253312 AMAQI
1st Aug 2025411 AMAQI
1st Aug 2025422 AMAQI
1st Aug 2025423 AMAQI
23°C21/27°C
1st Aug 2025444 AMAQI
1st Aug 2025415 AMAQI
1st Aug 2025436 AMAQI
1st Aug 2025447 AMAQI
1st Aug 2025468 AMAQI
1st Aug 2025349 AMAQI
1st Aug 20253110 AMAQI
1st Aug 20252911 AMAQI
1st Aug 20253712 PMAQI
1st Aug 2025321 PMAQI
1st Aug 2025332 PMAQI
1st Aug 2025293 PMAQI
1st Aug 2025314 PMAQI
1st Aug 2025325 PMAQI
1st Aug 2025346 PMAQI
1st Aug 2025267 PMAQI
1st Aug 2025308 PMAQI
1st Aug 2025339 PMAQI
1st Aug 20253510 PMAQI
1st Aug 20253511 PMAQI
2nd Aug 20253512 AMAQI
2nd Aug 2025391 AMAQI
2nd Aug 2025402 AMAQI
2nd Aug 2025403 AMAQI
23°C19/28°C
2nd Aug 2025394 AMAQI
2nd Aug 2025395 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025398 AMAQI
2nd Aug 2025309 AMAQI
2nd Aug 20253010 AMAQI
2nd Aug 20253811 AMAQI
2nd Aug 20252812 PMAQI
2nd Aug 2025251 PMAQI
2nd Aug 2025302 PMAQI
2nd Aug 2025303 PMAQI
2nd Aug 2025304 PMAQI
2nd Aug 2025265 PMAQI
2nd Aug 2025286 PMAQI
2nd Aug 2025417 PMAQI
2nd Aug 2025368 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20253911 PMAQI
3rd Aug 20253112 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025362 AMAQI
3rd Aug 2025363 AMAQI
23°C20/26°C
3rd Aug 2025384 AMAQI
3rd Aug 2025375 AMAQI
3rd Aug 2025376 AMAQI
3rd Aug 2025367 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025329 AMAQI
3rd Aug 20253410 AMAQI
3rd Aug 20253411 AMAQI
3rd Aug 20253712 PMAQI
3rd Aug 2025431 PMAQI
3rd Aug 2025392 PMAQI
3rd Aug 2025373 PMAQI
3rd Aug 2025324 PMAQI
3rd Aug 2025365 PMAQI
3rd Aug 2025386 PMAQI
3rd Aug 2025347 PMAQI
3rd Aug 2025328 PMAQI
3rd Aug 2025349 PMAQI
3rd Aug 20253210 PMAQI
3rd Aug 20253511 PMAQI
4th Aug 20253412 AMAQI
4th Aug 2025351 AMAQI
4th Aug 2025362 AMAQI
4th Aug 2025363 AMAQI
23°C20/26°C
4th Aug 2025354 AMAQI
4th Aug 2025365 AMAQI
4th Aug 2025366 AMAQI
4th Aug 2025377 AMAQI
4th Aug 2025378 AMAQI
4th Aug 2025419 AMAQI
4th Aug 20253610 AMAQI
4th Aug 20254011 AMAQI
4th Aug 20252612 PMAQI
4th Aug 2025331 PMAQI
4th Aug 2025392 PMAQI
4th Aug 2025383 PMAQI
4th Aug 2025284 PMAQI
4th Aug 2025305 PMAQI
4th Aug 2025286 PMAQI
4th Aug 2025357 PMAQI
4th Aug 2025368 PMAQI
4th Aug 2025349 PMAQI
4th Aug 20253610 PMAQI
4th Aug 20253711 PMAQI
5th Aug 20253512 AMAQI
5th Aug 2025361 AMAQI
5th Aug 2025382 AMAQI
5th Aug 2025363 AMAQI
23°C19/27°C
5th Aug 2025384 AMAQI
5th Aug 2025405 AMAQI
5th Aug 2025376 AMAQI
5th Aug 2025387 AMAQI
5th Aug 2025388 AMAQI
5th Aug 2025269 AMAQI
5th Aug 20253010 AMAQI
5th Aug 20253611 AMAQI
5th Aug 20253412 PMAQI
5th Aug 2025381 PMAQI
5th Aug 2025382 PMAQI
5th Aug 2025383 PMAQI
5th Aug 2025424 PMAQI
5th Aug 2025365 PMAQI
5th Aug 2025366 PMAQI
5th Aug 2025347 PMAQI
5th Aug 2025358 PMAQI
5th Aug 2025369 PMAQI
5th Aug 20253410 PMAQI
5th Aug 20253511 PMAQI
6th Aug 20253312 AMAQI
6th Aug 2025381 AMAQI
6th Aug 2025382 AMAQI
6th Aug 2025363 AMAQI
22°C20/25°C
6th Aug 2025394 AMAQI
6th Aug 2025385 AMAQI
6th Aug 2025386 AMAQI
6th Aug 2025377 AMAQI
6th Aug 2025398 AMAQI
6th Aug 2025319 AMAQI
6th Aug 20253010 AMAQI
6th Aug 20252711 AMAQI
6th Aug 20253612 PMAQI
6th Aug 2025281 PMAQI
6th Aug 2025262 PMAQI
6th Aug 2025283 PMAQI
6th Aug 2025264 PMAQI
6th Aug 2025265 PMAQI
6th Aug 2025266 PMAQI
6th Aug 2025217 PMAQI
6th Aug 2025328 PMAQI
6th Aug 2025359 PMAQI
6th Aug 20253210 PMAQI
6th Aug 20253611 PMAQI
7th Aug 20253512 AMAQI
7th Aug 2025391 AMAQI
7th Aug 2025382 AMAQI
7th Aug 2025383 AMAQI
21°C19/24°C
7th Aug 2025374 AMAQI
7th Aug 2025365 AMAQI
7th Aug 2025386 AMAQI
7th Aug 2025417 AMAQI
7th Aug 2025388 AMAQI
7th Aug 2025309 AMAQI
7th Aug 20253110 AMAQI
7th Aug 20253211 AMAQI
7th Aug 20253112 PMAQI
7th Aug 2025251 PMAQI
7th Aug 2025282 PMAQI
7th Aug 2025223 PMAQI
7th Aug 2025244 PMAQI
7th Aug 2025195 PMAQI
7th Aug 2025286 PMAQI
7th Aug 2025227 PMAQI
7th Aug 2025288 PMAQI
7th Aug 2025329 PMAQI
7th Aug 20253010 PMAQI
7th Aug 20252811 PMAQI
8th Aug 20253012 AMAQI
8th Aug 2025361 AMAQI
8th Aug 2025382 AMAQI
8th Aug 2025373 AMAQI
22°C19/24°C
8th Aug 2025374 AMAQI
4 AM8th Aug 2025355 AMAQI
8th Aug 2025356 AMAQI
8th Aug 2025357 AMAQI
8th Aug 2025368 AMAQI
8th Aug 2025239 AMAQI
8th Aug 20251710 AMAQI
8th Aug 20251611 AMAQI
11 AM8th Aug 20251812 PMAQI
8th Aug 2025201 PMAQI
8th Aug 2025212 PMAQI
8th Aug 2025183 PMAQI
8th Aug 2025184 PMAQI
8th Aug 2025185 PMAQI
7 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
42AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
5 PM
33AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 42), while the lowest AQI was between 5 PM to 5 PM (Avg. 33).
Night time
Avg. Highest Time
1 AM - 3 AM
42AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
8 PM
37AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 3 AM (Avg. 42), while the lowest AQI was between 8 PM to 8 PM (Avg. 37).
2025 Days Vs Air Quality
Otaru, Hokkaido, Japan
2025
98%
215
2%
4
Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)
Good
215 DaysModerate
4 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 98%
Health Risk Level:
Very Low
In 2025, 98% of 220 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
Otaru, 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
26AQI
26AQI
2nd January 2025
28AQI
28AQI
3rd January 2025
25AQI
25AQI
4th January 2025
27AQI
27AQI
5th January 2025
25AQI
25AQI
6th January 2025
30AQI
30AQI
7th January 2025
30AQI
30AQI
8th January 2025
30AQI
30AQI
9th January 2025
27AQI
27AQI
10th January 2025
32AQI
32AQI
11th January 2025
23AQI
23AQI
12th January 2025
32AQI
32AQI
13th January 2025
29AQI
29AQI
14th January 2025
32AQI
32AQI
15th January 2025
33AQI
33AQI
16th January 2025
29AQI
29AQI
17th January 2025
27AQI
27AQI
18th January 2025
27AQI
27AQI
19th January 2025
31AQI
31AQI
20th January 2025
42AQI
42AQI
21st January 2025
39AQI
39AQI
22nd January 2025
51AQI
51AQI
23rd January 2025
37AQI
37AQI
24th January 2025
41AQI
41AQI
25th January 2025
32AQI
32AQI
26th January 2025
32AQI
32AQI
27th January 2025
29AQI
29AQI
28th January 2025
25AQI
25AQI
29th January 2025
26AQI
26AQI
30th January 2025
25AQI
25AQI
31st January 2025
25AQI
25AQI
1st February 2025
26AQI
26AQI
2nd February 2025
24AQI
24AQI
3rd February 2025
30AQI
30AQI
4th February 2025
26AQI
26AQI
5th February 2025
28AQI
28AQI
6th February 2025
27AQI
27AQI
7th February 2025
26AQI
26AQI
8th February 2025
29AQI
29AQI
9th February 2025
28AQI
28AQI
10th February 2025
27AQI
27AQI
11th February 2025
28AQI
28AQI
12th February 2025
34AQI
34AQI
13th February 2025
39AQI
39AQI
14th February 2025
33AQI
33AQI
15th February 2025
43AQI
43AQI
16th February 2025
47AQI
47AQI
17th February 2025
43AQI
43AQI
18th February 2025
31AQI
31AQI
19th February 2025
33AQI
33AQI
20th February 2025
27AQI
27AQI
21st February 2025
26AQI
26AQI
22nd February 2025
27AQI
27AQI
23rd February 2025
26AQI
26AQI
24th February 2025
28AQI
28AQI
25th February 2025
30AQI
30AQI
26th February 2025
35AQI
35AQI
27th February 2025
33AQI
33AQI
28th February 2025
50AQI
50AQI
1st March 2025
38AQI
38AQI
2nd March 2025
41AQI
41AQI
3rd March 2025
35AQI
35AQI
4th March 2025
32AQI
32AQI
5th March 2025
29AQI
29AQI
6th March 2025
29AQI
29AQI
7th March 2025
30AQI
30AQI
8th March 2025
31AQI
31AQI
9th March 2025
35AQI
35AQI
10th March 2025
36AQI
36AQI
11th March 2025
39AQI
39AQI
12th March 2025
55AQI
55AQI
13th March 2025
36AQI
36AQI
14th March 2025
31AQI
31AQI
15th March 2025
25AQI
25AQI
16th March 2025
24AQI
24AQI
17th March 2025
20AQI
20AQI
18th March 2025
22AQI
22AQI
19th March 2025
25AQI
25AQI
20th March 2025
47AQI
47AQI
21st March 2025
46AQI
46AQI
22nd March 2025
38AQI
38AQI
23rd March 2025
31AQI
31AQI
24th March 2025
32AQI
32AQI
25th March 2025
37AQI
37AQI
26th March 2025
30AQI
30AQI
27th March 2025
33AQI
33AQI
28th March 2025
31AQI
31AQI
29th March 2025
27AQI
27AQI
30th March 2025
28AQI
28AQI
31st March 2025
29AQI
29AQI
1st April 2025
34AQI
34AQI
2nd April 2025
29AQI
29AQI
3rd April 2025
25AQI
25AQI
4th April 2025
26AQI
26AQI
5th April 2025
34AQI
34AQI
6th April 2025
35AQI
35AQI
7th April 2025
27AQI
27AQI
8th April 2025
29AQI
29AQI
9th April 2025
33AQI
33AQI
10th April 2025
44AQI
44AQI
11th April 2025
47AQI
47AQI
12th April 2025
49AQI
49AQI
13th April 2025
36AQI
36AQI
14th April 2025
30AQI
30AQI
15th April 2025
24AQI
24AQI
16th April 2025
22AQI
22AQI
17th April 2025
25AQI
25AQI
18th April 2025
25AQI
25AQI
19th April 2025
26AQI
26AQI
20th April 2025
23AQI
23AQI
21st April 2025
24AQI
24AQI
22nd April 2025
26AQI
26AQI
23rd April 2025
21AQI
21AQI
24th April 2025
27AQI
27AQI
25th April 2025
18AQI
18AQI
26th April 2025
33AQI
33AQI
27th April 2025
21AQI
21AQI
28th April 2025
24AQI
24AQI
29th April 2025
18AQI
18AQI
30th April 2025
22AQI
22AQI
1st May 2025
21AQI
21AQI
2nd May 2025
27AQI
27AQI
3rd May 2025
33AQI
33AQI
4th May 2025
33AQI
33AQI
5th May 2025
31AQI
31AQI
6th May 2025
31AQI
31AQI
7th May 2025
30AQI
30AQI
8th May 2025
35AQI
35AQI
9th May 2025
38AQI
38AQI
10th May 2025
26AQI
26AQI
11th May 2025
33AQI
33AQI
12th May 2025
30AQI
30AQI
13th May 2025
37AQI
37AQI
14th May 2025
48AQI
48AQI
15th May 2025
42AQI
42AQI
16th May 2025
53AQI
53AQI
17th May 2025
44AQI
44AQI
18th May 2025
35AQI
35AQI
19th May 2025
45AQI
45AQI
20th May 2025
44AQI
44AQI
21st May 2025
42AQI
42AQI
22nd May 2025
40AQI
40AQI
23rd May 2025
33AQI
33AQI
24th May 2025
33AQI
33AQI
25th May 2025
23AQI
23AQI
26th May 2025
24AQI
24AQI
27th May 2025
31AQI
31AQI
28th May 2025
34AQI
34AQI
29th May 2025
38AQI
38AQI
30th May 2025
37AQI
37AQI
31st May 2025
39AQI
39AQI
1st June 2025
31AQI
31AQI
2nd June 2025
36AQI
36AQI
3rd June 2025
32AQI
32AQI
4th June 2025
27AQI
27AQI
5th June 2025
24AQI
24AQI
6th June 2025
32AQI
32AQI
7th June 2025
42AQI
42AQI
8th June 2025
39AQI
39AQI
9th June 2025
41AQI
41AQI
10th June 2025
51AQI
51AQI
11th June 2025
46AQI
46AQI
12th June 2025
38AQI
38AQI
13th June 2025
42AQI
42AQI
14th June 2025
41AQI
41AQI
15th June 2025
35AQI
35AQI
16th June 2025
34AQI
34AQI
17th June 2025
33AQI
33AQI
18th June 2025
42AQI
42AQI
19th June 2025
41AQI
41AQI
20th June 2025
45AQI
45AQI
21st June 2025
37AQI
37AQI
22nd June 2025
32AQI
32AQI
23rd June 2025
35AQI
35AQI
24th June 2025
38AQI
38AQI
25th June 2025
42AQI
42AQI
26th June 2025
41AQI
41AQI
27th June 2025
35AQI
35AQI
28th June 2025
39AQI
39AQI
29th June 2025
43AQI
43AQI
30th June 2025
45AQI
45AQI
1st July 2025
46AQI
46AQI
2nd July 2025
47AQI
47AQI
3rd July 2025
48AQI
48AQI
4th July 2025
49AQI
49AQI
5th July 2025
42AQI
42AQI
6th July 2025
48AQI
48AQI
7th July 2025
49AQI
49AQI
8th July 2025
45AQI
45AQI
9th July 2025
44AQI
44AQI
10th July 2025
39AQI
39AQI
11th July 2025
39AQI
39AQI
12th July 2025
41AQI
41AQI
13th July 2025
43AQI
43AQI
14th July 2025
38AQI
38AQI
15th July 2025
38AQI
38AQI
16th July 2025
35AQI
35AQI
17th July 2025
46AQI
46AQI
18th July 2025
36AQI
36AQI
19th July 2025
36AQI
36AQI
20th July 2025
36AQI
36AQI
21st July 2025
41AQI
41AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
37AQI
37AQI
24th July 2025
37AQI
37AQI
25th July 2025
39AQI
39AQI
26th July 2025
41AQI
41AQI
27th July 2025
39AQI
39AQI
28th July 2025
42AQI
42AQI
29th July 2025
42AQI
42AQI
30th July 2025
41AQI
41AQI
31st July 2025
37AQI
37AQI
1st August 2025
36AQI
36AQI
2nd August 2025
35AQI
35AQI
3rd August 2025
36AQI
36AQI
4th August 2025
35AQI
35AQI
5th August 2025
36AQI
36AQI
6th August 2025
33AQI
33AQI
7th August 2025
36AQI
36AQI
31AQI
32AQI
33AQI
29AQI
35AQI
38AQI
41AQI
35AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202534AQI
30
1
28
30
1
30
30
1
29
1
31
7
215
4
Highest AQI recorded in
July41AQI
Lowest AQI recorded in
April29AQI
202435AQI
30
1
27
2
28
3
22
8
25
6
26
4
19
11
31
30
31
29
1
31
329
36
Highest AQI recorded in
April44AQI
Lowest AQI recorded in
December27AQI
202336AQI
31
26
2
24
7
21
9
26
5
27
3
24
7
29
2
30
31
26
1
31
326
36
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
January29AQI
202232AQI
31
18
3
30
1
15
2
24
7
28
2
18
5
2
26
2
31
30
30
1
283
23
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
August22AQI
202130AQI
29
2
27
1
27
3
1
29
1
30
1
30
27
4
28
3
30
31
29
1
31
348
16
1
Highest AQI recorded in
August36AQI
Lowest AQI recorded in
December25AQI
202024AQI
12
1
21
18
29
1
31
29
2
19
31
27
1
30
1
247
6
Highest AQI recorded in
March30AQI
Lowest AQI recorded in
November20AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
36AQILeast Polluted Year Recorded
2020(Avg.)
24AQIOtaru's annual 2025 AQI (34) shows an average percentage change of 10.9% (worsened AQI) compared to previous years: 2020 (24), 2021 (30), 2022 (32), 2023 (36), 2024 (35).
