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+
November Air Quality Analysis
Otaru, Hokkaido, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
30th Nov 2021
62AQILowest AQI recorded on
3rd Nov 2025
17AQISame Day Analysis (4th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 30 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Nov - 5th Nov 2025
Otaru, Hokkaido, Japan
AQI
Day
Night
.
5 AM4th Nov 2025
4 PM
4 AM5th Nov 2025
Day time
Avg. Highest Time
4PM4th Nov
53AQI
Avg. Lowest Time
8AM4th Nov
23AQI
Night time
Avg. Highest Time
6PM4th Nov
55AQI
Avg. Lowest Time
5AM4th Nov
22AQI
In the last 24 hours,
Otaru's AQI reached its highest point of 55 at 6 PM during the Night, while the lowest point, 22, was recorded at 5 AM during the Night between 4th Nov and 5th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Otaru, Hokkaido, Japan
OctNov
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 Oct 2025125 AMAQI
6th Oct 2025126 AMAQI
6th Oct 2025317 AMAQI
6th Oct 2025408 AMAQI
6th Oct 2025429 AMAQI
6th Oct 20253510 AMAQI
6th Oct 20252111 AMAQI
6th Oct 20252712 PMAQI
6th Oct 2025351 PMAQI
6th Oct 2025392 PMAQI
6th Oct 2025463 PMAQI
6th Oct 2025434 PMAQI
6th Oct 2025475 PMAQI
6th Oct 2025436 PMAQI
6th Oct 2025277 PMAQI
6th Oct 2025368 PMAQI
6th Oct 2025389 PMAQI
6th Oct 20254410 PMAQI
6th Oct 20254511 PMAQI
7th Oct 20254512 AMAQI
7th Oct 2025461 AMAQI
7th Oct 2025412 AMAQI
13°C10/14°C
7th Oct 2025398 PMAQI
7th Oct 2025259 PMAQI
7th Oct 20254610 PMAQI
7th Oct 20253111 PMAQI
8th Oct 20252912 AMAQI
8th Oct 2025151 AMAQI
8th Oct 2025472 AMAQI
8th Oct 2025563 AMAQI
8th Oct 2025584 AMAQI
13°C7/16°C
8th Oct 2025555 AMAQI
8th Oct 2025576 AMAQI
8th Oct 2025577 AMAQI
8th Oct 2025478 AMAQI
8th Oct 2025379 AMAQI
8th Oct 20253810 AMAQI
8th Oct 20255011 AMAQI
8th Oct 20254712 PMAQI
8th Oct 2025491 PMAQI
8th Oct 2025612 PMAQI
8th Oct 2025373 PMAQI
8th Oct 2025394 PMAQI
8th Oct 2025495 PMAQI
8th Oct 2025446 PMAQI
8th Oct 2025447 PMAQI
8th Oct 2025408 PMAQI
8th Oct 2025399 PMAQI
8th Oct 20254410 PMAQI
8th Oct 20254611 PMAQI
9th Oct 20254212 AMAQI
9th Oct 2025391 AMAQI
9th Oct 2025422 AMAQI
9th Oct 2025423 AMAQI
9th Oct 2025404 AMAQI
15°C13/17°C
9th Oct 2025375 AMAQI
9th Oct 2025416 AMAQI
9th Oct 2025387 AMAQI
9th Oct 2025408 AMAQI
9th Oct 2025359 AMAQI
9th Oct 20253510 AMAQI
9th Oct 20252711 AMAQI
9th Oct 20252912 PMAQI
9th Oct 2025281 PMAQI
9th Oct 2025522 PMAQI
9th Oct 2025443 PMAQI
9th Oct 2025424 PMAQI
9th Oct 2025455 PMAQI
9th Oct 2025386 PMAQI
9th Oct 2025407 PMAQI
9th Oct 2025388 PMAQI
9th Oct 2025199 PMAQI
9th Oct 20252910 PMAQI
9th Oct 20253611 PMAQI
10th Oct 20254312 AMAQI
10th Oct 2025431 AMAQI
10th Oct 2025442 AMAQI
10th Oct 2025353 AMAQI
10th Oct 2025364 AMAQI
10°C7/12°C
10th Oct 2025345 AMAQI
10th Oct 2025376 AMAQI
10th Oct 2025417 AMAQI
10th Oct 2025398 AMAQI
10th Oct 2025459 AMAQI
10th Oct 20253310 AMAQI
10th Oct 20252811 AMAQI
10th Oct 20252812 PMAQI
10th Oct 2025411 PMAQI
10th Oct 2025452 PMAQI
10th Oct 2025323 PMAQI
10th Oct 2025254 PMAQI
10th Oct 2025265 PMAQI
10th Oct 2025286 PMAQI
10th Oct 2025377 PMAQI
10th Oct 2025388 PMAQI
10th Oct 2025359 PMAQI
10th Oct 20254310 PMAQI
10th Oct 20254311 PMAQI
11th Oct 20253912 AMAQI
11th Oct 2025441 AMAQI
11th Oct 2025462 AMAQI
11th Oct 2025473 AMAQI
11th Oct 2025364 AMAQI
11°C8/13°C
11th Oct 2025295 AMAQI
11th Oct 2025316 AMAQI
11th Oct 2025397 AMAQI
11th Oct 2025398 AMAQI
11th Oct 2025369 AMAQI
11th Oct 20252910 AMAQI
11th Oct 20252611 AMAQI
11th Oct 20254112 PMAQI
11th Oct 2025491 PMAQI
11th Oct 2025472 PMAQI
11th Oct 2025413 PMAQI
11th Oct 2025384 PMAQI
11th Oct 2025325 PMAQI
11th Oct 2025296 PMAQI
11th Oct 2025367 PMAQI
11th Oct 2025368 PMAQI
11th Oct 2025429 PMAQI
11th Oct 20254610 PMAQI
11th Oct 20254611 PMAQI
12th Oct 20254212 AMAQI
12th Oct 2025451 AMAQI
12th Oct 2025422 AMAQI
12th Oct 2025393 AMAQI
12th Oct 2025354 AMAQI
10°C7/12°C
12th Oct 2025325 AMAQI
12th Oct 2025356 AMAQI
12th Oct 2025337 AMAQI
12th Oct 2025348 AMAQI
12th Oct 2025369 AMAQI
12th Oct 20253810 AMAQI
12th Oct 20254111 AMAQI
12th Oct 20253812 PMAQI
12th Oct 2025381 PMAQI
12th Oct 2025352 PMAQI
12th Oct 2025383 PMAQI
12th Oct 2025414 PMAQI
12th Oct 2025405 PMAQI
12th Oct 2025406 PMAQI
12th Oct 2025367 PMAQI
12th Oct 2025428 PMAQI
12th Oct 2025429 PMAQI
12th Oct 20254310 PMAQI
12th Oct 20254111 PMAQI
13th Oct 20254012 AMAQI
13th Oct 2025391 AMAQI
13th Oct 2025402 AMAQI
13th Oct 2025393 AMAQI
13th Oct 2025384 AMAQI
12°C9/14°C
13th Oct 2025345 AMAQI
13th Oct 2025546 AMAQI
13th Oct 2025297 AMAQI
13th Oct 2025398 AMAQI
13th Oct 2025389 AMAQI
13th Oct 20254210 AMAQI
13th Oct 20254611 AMAQI
13th Oct 20254412 PMAQI
13th Oct 2025441 PMAQI
13th Oct 2025362 PMAQI
13th Oct 2025343 PMAQI
13th Oct 2025344 PMAQI
13th Oct 2025365 PMAQI
13th Oct 2025386 PMAQI
13th Oct 2025377 PMAQI
13th Oct 2025378 PMAQI
13th Oct 2025409 PMAQI
13th Oct 20253810 PMAQI
13th Oct 20253411 PMAQI
14th Oct 20253812 AMAQI
14th Oct 2025391 AMAQI
14th Oct 2025452 AMAQI
14th Oct 2025443 AMAQI
14th Oct 2025464 AMAQI
11°C7/13°C
14th Oct 2025445 AMAQI
14th Oct 2025366 AMAQI
14th Oct 2025447 AMAQI
14th Oct 2025478 AMAQI
14th Oct 2025369 AMAQI
14th Oct 20252910 AMAQI
14th Oct 20251711 AMAQI
14th Oct 20252312 PMAQI
14th Oct 2025161 PMAQI
14th Oct 2025352 PMAQI
14th Oct 2025513 PMAQI
14th Oct 2025574 PMAQI
14th Oct 2025565 PMAQI
14th Oct 2025426 PMAQI
14th Oct 2025387 PMAQI
14th Oct 2025448 PMAQI
14th Oct 2025449 PMAQI
14th Oct 20254910 PMAQI
14th Oct 20255111 PMAQI
15th Oct 20254812 AMAQI
15th Oct 2025401 AMAQI
15th Oct 2025372 AMAQI
15th Oct 2025403 AMAQI
15th Oct 2025404 AMAQI
9°C6/13°C
15th Oct 2025505 AMAQI
15th Oct 2025396 AMAQI
15th Oct 2025387 AMAQI
15th Oct 2025408 AMAQI
15th Oct 2025429 AMAQI
15th Oct 20254910 AMAQI
15th Oct 20254811 AMAQI
15th Oct 20254612 PMAQI
15th Oct 2025371 PMAQI
15th Oct 2025382 PMAQI
15th Oct 2025383 PMAQI
15th Oct 2025364 PMAQI
15th Oct 2025445 PMAQI
15th Oct 2025456 PMAQI
15th Oct 2025467 PMAQI
15th Oct 2025498 PMAQI
15th Oct 2025449 PMAQI
15th Oct 20253910 PMAQI
15th Oct 20254711 PMAQI
16th Oct 20254812 AMAQI
16th Oct 2025441 AMAQI
16th Oct 2025442 AMAQI
16th Oct 2025383 AMAQI
16th Oct 2025484 AMAQI
10°C6/12°C
16th Oct 2025435 AMAQI
16th Oct 2025396 AMAQI
16th Oct 2025307 AMAQI
16th Oct 2025298 AMAQI
16th Oct 2025299 AMAQI
16th Oct 20253410 AMAQI
16th Oct 20253811 AMAQI
16th Oct 20253612 PMAQI
16th Oct 2025391 PMAQI
16th Oct 2025422 PMAQI
16th Oct 2025483 PMAQI
16th Oct 2025534 PMAQI
16th Oct 2025555 PMAQI
16th Oct 2025416 PMAQI
16th Oct 2025357 PMAQI
16th Oct 2025358 PMAQI
16th Oct 2025379 PMAQI
16th Oct 20254810 PMAQI
16th Oct 20255511 PMAQI
17th Oct 20255612 AMAQI
17th Oct 2025551 AMAQI
17th Oct 2025532 AMAQI
17th Oct 2025553 AMAQI
17th Oct 2025554 AMAQI
11°C8/16°C
17th Oct 2025545 AMAQI
17th Oct 2025506 AMAQI
17th Oct 2025447 AMAQI
17th Oct 2025428 AMAQI
17th Oct 2025479 AMAQI
17th Oct 20255210 AMAQI
17th Oct 20254911 AMAQI
17th Oct 20255012 PMAQI
17th Oct 2025471 PMAQI
17th Oct 2025462 PMAQI
17th Oct 2025443 PMAQI
17th Oct 2025444 PMAQI
17th Oct 2025385 PMAQI
17th Oct 2025386 PMAQI
17th Oct 2025397 PMAQI
17th Oct 2025468 PMAQI
17th Oct 2025489 PMAQI
17th Oct 20255410 PMAQI
17th Oct 20254511 PMAQI
18th Oct 20253912 AMAQI
18th Oct 2025301 AMAQI
18th Oct 2025412 AMAQI
18th Oct 2025523 AMAQI
18th Oct 2025454 AMAQI
11°C9/13°C
18th Oct 2025395 AMAQI
18th Oct 2025426 AMAQI
18th Oct 2025427 AMAQI
18th Oct 2025408 AMAQI
18th Oct 2025409 AMAQI
18th Oct 20254210 AMAQI
18th Oct 20254011 AMAQI
18th Oct 20252812 PMAQI
18th Oct 2025441 PMAQI
18th Oct 2025282 PMAQI
18th Oct 2025273 PMAQI
18th Oct 2025484 PMAQI
18th Oct 2025435 PMAQI
18th Oct 2025446 PMAQI
18th Oct 2025247 PMAQI
18th Oct 2025248 PMAQI
18th Oct 2025279 PMAQI
18th Oct 20253010 PMAQI
18th Oct 20252711 PMAQI
19th Oct 20253412 AMAQI
19th Oct 2025351 AMAQI
19th Oct 2025352 AMAQI
19th Oct 2025343 AMAQI
19th Oct 2025364 AMAQI
11°C10/13°C
19th Oct 2025375 AMAQI
19th Oct 2025296 AMAQI
19th Oct 2025307 AMAQI
19th Oct 2025388 AMAQI
19th Oct 2025419 AMAQI
19th Oct 20252610 AMAQI
19th Oct 20252211 AMAQI
19th Oct 20252512 PMAQI
19th Oct 2025331 PMAQI
19th Oct 2025322 PMAQI
19th Oct 2025253 PMAQI
19th Oct 2025454 PMAQI
19th Oct 2025495 PMAQI
19th Oct 2025486 PMAQI
19th Oct 2025417 PMAQI
19th Oct 2025358 PMAQI
19th Oct 2025379 PMAQI
19th Oct 20253710 PMAQI
19th Oct 20253811 PMAQI
20th Oct 20253612 AMAQI
20th Oct 2025281 AMAQI
20th Oct 2025462 AMAQI
20th Oct 2025513 AMAQI
20th Oct 2025554 AMAQI
8°C6/9°C
20th Oct 2025545 AMAQI
20th Oct 2025546 AMAQI
20th Oct 2025527 AMAQI
20th Oct 2025518 AMAQI
20th Oct 2025519 AMAQI
20th Oct 20255110 AMAQI
20th Oct 20255011 AMAQI
20th Oct 20255112 PMAQI
20th Oct 2025521 PMAQI
20th Oct 2025522 PMAQI
20th Oct 2025523 PMAQI
20th Oct 2025514 PMAQI
20th Oct 2025515 PMAQI
20th Oct 2025226 PMAQI
20th Oct 2025227 PMAQI
20th Oct 2025218 PMAQI
20th Oct 2025239 PMAQI
20th Oct 20252310 PMAQI
20th Oct 20252311 PMAQI
21st Oct 20252512 AMAQI
21st Oct 2025251 AMAQI
21st Oct 2025302 AMAQI
21st Oct 2025253 AMAQI
21st Oct 2025244 AMAQI
6°C3/7°C
21st Oct 2025245 AMAQI
21st Oct 2025256 AMAQI
21st Oct 2025267 AMAQI
21st Oct 2025268 AMAQI
21st Oct 2025259 AMAQI
21st Oct 20252410 AMAQI
21st Oct 20252311 AMAQI
21st Oct 20252412 PMAQI
21st Oct 2025241 PMAQI
21st Oct 2025272 PMAQI
21st Oct 2025233 PMAQI
21st Oct 2025244 PMAQI
21st Oct 2025245 PMAQI
21st Oct 2025236 PMAQI
21st Oct 2025247 PMAQI
21st Oct 2025248 PMAQI
21st Oct 2025259 PMAQI
21st Oct 20252410 PMAQI
21st Oct 20251911 PMAQI
22nd Oct 20252812 AMAQI
22nd Oct 2025281 AMAQI
22nd Oct 2025322 AMAQI
22nd Oct 2025273 AMAQI
22nd Oct 2025224 AMAQI
5°C4/7°C
22nd Oct 2025235 AMAQI
22nd Oct 2025186 AMAQI
22nd Oct 2025187 AMAQI
22nd Oct 2025188 AMAQI
22nd Oct 2025319 AMAQI
22nd Oct 20252410 AMAQI
22nd Oct 20252811 AMAQI
22nd Oct 20252812 PMAQI
22nd Oct 2025321 PMAQI
22nd Oct 2025382 PMAQI
22nd Oct 2025393 PMAQI
22nd Oct 2025364 PMAQI
22nd Oct 2025385 PMAQI
22nd Oct 2025396 PMAQI
22nd Oct 2025407 PMAQI
22nd Oct 2025398 PMAQI
22nd Oct 2025409 PMAQI
22nd Oct 20253810 PMAQI
22nd Oct 20254211 PMAQI
23rd Oct 20253512 AMAQI
23rd Oct 2025471 AMAQI
23rd Oct 2025462 AMAQI
23rd Oct 2025483 AMAQI
23rd Oct 2025504 AMAQI
6°C4/9°C
23rd Oct 2025545 AMAQI
23rd Oct 2025536 AMAQI
23rd Oct 2025377 AMAQI
23rd Oct 2025348 AMAQI
23rd Oct 2025369 AMAQI
23rd Oct 20253010 AMAQI
23rd Oct 20252911 AMAQI
23rd Oct 20253012 PMAQI
23rd Oct 2025381 PMAQI
23rd Oct 2025432 PMAQI
23rd Oct 2025393 PMAQI
23rd Oct 2025334 PMAQI
23rd Oct 2025385 PMAQI
23rd Oct 2025376 PMAQI
23rd Oct 2025317 PMAQI
23rd Oct 2025308 PMAQI
23rd Oct 2025309 PMAQI
23rd Oct 20252810 PMAQI
23rd Oct 20253911 PMAQI
24th Oct 20254012 AMAQI
24th Oct 2025391 AMAQI
24th Oct 2025322 AMAQI
24th Oct 2025383 AMAQI
24th Oct 2025304 AMAQI
5°C3/8°C
24th Oct 2025305 AMAQI
24th Oct 2025246 AMAQI
24th Oct 2025177 AMAQI
24th Oct 2025208 AMAQI
24th Oct 2025229 AMAQI
24th Oct 20252710 AMAQI
24th Oct 20251811 AMAQI
24th Oct 20251712 PMAQI
24th Oct 2025171 PMAQI
24th Oct 2025222 PMAQI
24th Oct 2025223 PMAQI
24th Oct 2025164 PMAQI
24th Oct 2025115 PMAQI
24th Oct 2025116 PMAQI
24th Oct 2025157 PMAQI
24th Oct 2025228 PMAQI
24th Oct 2025229 PMAQI
24th Oct 20252210 PMAQI
24th Oct 20254811 PMAQI
25th Oct 20254212 AMAQI
25th Oct 2025421 AMAQI
25th Oct 2025442 AMAQI
25th Oct 2025443 AMAQI
25th Oct 2025324 AMAQI
4°C2/6°C
25th Oct 2025315 AMAQI
25th Oct 2025326 AMAQI
25th Oct 2025227 AMAQI
25th Oct 2025308 AMAQI
25th Oct 2025339 AMAQI
25th Oct 20253010 AMAQI
25th Oct 20253611 AMAQI
25th Oct 20253812 PMAQI
25th Oct 2025391 PMAQI
25th Oct 2025382 PMAQI
25th Oct 2025393 PMAQI
25th Oct 2025394 PMAQI
25th Oct 2025425 PMAQI
25th Oct 2025396 PMAQI
25th Oct 2025387 PMAQI
25th Oct 2025498 PMAQI
25th Oct 2025459 PMAQI
25th Oct 20254810 PMAQI
25th Oct 20255111 PMAQI
26th Oct 20255012 AMAQI
26th Oct 2025501 AMAQI
26th Oct 2025542 AMAQI
26th Oct 2025403 AMAQI
26th Oct 2025404 AMAQI
6°C2/11°C
26th Oct 2025365 AMAQI
26th Oct 2025286 AMAQI
26th Oct 2025287 AMAQI
26th Oct 2025308 AMAQI
26th Oct 2025349 AMAQI
26th Oct 20254510 AMAQI
26th Oct 20254511 AMAQI
26th Oct 20253712 PMAQI
26th Oct 2025241 PMAQI
26th Oct 2025282 PMAQI
26th Oct 2025293 PMAQI
26th Oct 2025404 PMAQI
26th Oct 2025345 PMAQI
26th Oct 2025336 PMAQI
26th Oct 2025287 PMAQI
26th Oct 2025368 PMAQI
26th Oct 2025389 PMAQI
26th Oct 20253910 PMAQI
26th Oct 20252611 PMAQI
27th Oct 20252312 AMAQI
27th Oct 2025231 AMAQI
27th Oct 2025262 AMAQI
27th Oct 2025283 AMAQI
27th Oct 2025304 AMAQI
10°C5/14°C
27th Oct 2025285 AMAQI
27th Oct 2025276 AMAQI
27th Oct 2025197 AMAQI
27th Oct 2025178 AMAQI
27th Oct 2025179 AMAQI
27th Oct 20252210 AMAQI
27th Oct 20252211 AMAQI
27th Oct 20252312 PMAQI
27th Oct 2025121 PMAQI
27th Oct 2025272 PMAQI
27th Oct 2025283 PMAQI
27th Oct 2025284 PMAQI
27th Oct 2025245 PMAQI
27th Oct 2025286 PMAQI
27th Oct 2025287 PMAQI
27th Oct 2025388 PMAQI
27th Oct 2025469 PMAQI
27th Oct 20256010 PMAQI
27th Oct 20257011 PMAQI
28th Oct 20256812 AMAQI
28th Oct 2025601 AMAQI
28th Oct 2025512 AMAQI
28th Oct 2025453 AMAQI
28th Oct 2025534 AMAQI
9°C5/12°C
28th Oct 2025525 AMAQI
28th Oct 2025466 AMAQI
28th Oct 2025647 AMAQI
28th Oct 2025768 AMAQI
28th Oct 2025919 AMAQI
28th Oct 20259210 AMAQI
28th Oct 20258911 AMAQI
28th Oct 20257812 PMAQI
28th Oct 2025841 PMAQI
28th Oct 2025702 PMAQI
28th Oct 2025553 PMAQI
28th Oct 2025544 PMAQI
28th Oct 2025565 PMAQI
28th Oct 2025556 PMAQI
28th Oct 2025537 PMAQI
28th Oct 2025558 PMAQI
28th Oct 2025539 PMAQI
28th Oct 20253810 PMAQI
28th Oct 20253411 PMAQI
29th Oct 20253912 AMAQI
29th Oct 2025391 AMAQI
29th Oct 2025462 AMAQI
29th Oct 2025443 AMAQI
29th Oct 2025354 AMAQI
5°C3/7°C
29th Oct 2025225 AMAQI
29th Oct 2025226 AMAQI
29th Oct 2025207 AMAQI
29th Oct 2025288 AMAQI
29th Oct 2025299 AMAQI
29th Oct 20253710 AMAQI
29th Oct 20252411 AMAQI
29th Oct 20252712 PMAQI
29th Oct 2025281 PMAQI
29th Oct 2025302 PMAQI
29th Oct 2025283 PMAQI
29th Oct 2025374 PMAQI
29th Oct 2025215 PMAQI
29th Oct 2025356 PMAQI
29th Oct 2025237 PMAQI
29th Oct 2025388 PMAQI
29th Oct 2025319 PMAQI
29th Oct 20254410 PMAQI
29th Oct 20253211 PMAQI
30th Oct 20253812 AMAQI
30th Oct 2025351 AMAQI
30th Oct 2025382 AMAQI
30th Oct 2025373 AMAQI
30th Oct 2025454 AMAQI
5°C2/8°C
30th Oct 2025355 AMAQI
30th Oct 2025456 AMAQI
30th Oct 2025557 AMAQI
30th Oct 2025568 AMAQI
30th Oct 2025559 AMAQI
30th Oct 20255410 AMAQI
30th Oct 20254611 AMAQI
30th Oct 20254612 PMAQI
30th Oct 2025491 PMAQI
30th Oct 2025542 PMAQI
30th Oct 2025563 PMAQI
30th Oct 2025594 PMAQI
30th Oct 2025465 PMAQI
30th Oct 2025446 PMAQI
30th Oct 2025467 PMAQI
30th Oct 2025568 PMAQI
30th Oct 2025599 PMAQI
30th Oct 20256310 PMAQI
30th Oct 20255811 PMAQI
31st Oct 20255812 AMAQI
31st Oct 2025561 AMAQI
31st Oct 2025562 AMAQI
31st Oct 2025553 AMAQI
31st Oct 2025574 AMAQI
6°C2/10°C
31st Oct 2025585 AMAQI
31st Oct 2025566 AMAQI
31st Oct 2025577 AMAQI
31st Oct 2025568 AMAQI
31st Oct 2025579 AMAQI
31st Oct 20255510 AMAQI
31st Oct 20255111 AMAQI
31st Oct 20255112 PMAQI
31st Oct 2025521 PMAQI
31st Oct 2025552 PMAQI
31st Oct 2025553 PMAQI
31st Oct 2025564 PMAQI
31st Oct 2025595 PMAQI
31st Oct 2025586 PMAQI
31st Oct 2025627 PMAQI
31st Oct 2025638 PMAQI
31st Oct 2025549 PMAQI
31st Oct 20255010 PMAQI
31st Oct 20255211 PMAQI
1st Nov 20255312 AMAQI
1st Nov 2025531 AMAQI
1st Nov 2025562 AMAQI
1st Nov 2025563 AMAQI
1st Nov 2025564 AMAQI
10°C7/13°C
1st Nov 2025565 AMAQI
1st Nov 2025546 AMAQI
1st Nov 2025547 AMAQI
1st Nov 2025358 AMAQI
1st Nov 2025409 AMAQI
1st Nov 20253510 AMAQI
1st Nov 20252811 AMAQI
1st Nov 20252812 PMAQI
1st Nov 2025181 PMAQI
1st Nov 2025152 PMAQI
1st Nov 2025173 PMAQI
1st Nov 2025184 PMAQI
1st Nov 2025185 PMAQI
1st Nov 2025296 PMAQI
1st Nov 2025267 PMAQI
1st Nov 2025238 PMAQI
1st Nov 2025229 PMAQI
1st Nov 20252010 PMAQI
1st Nov 20252211 PMAQI
2nd Nov 20251812 AMAQI
2nd Nov 2025221 AMAQI
2nd Nov 2025212 AMAQI
2nd Nov 2025223 AMAQI
2nd Nov 2025224 AMAQI
10°C9/11°C
2nd Nov 2025205 AMAQI
2nd Nov 2025206 AMAQI
2nd Nov 2025167 AMAQI
2nd Nov 2025228 AMAQI
2nd Nov 2025179 AMAQI
2nd Nov 20251710 AMAQI
2nd Nov 20251711 AMAQI
2nd Nov 20251712 PMAQI
2nd Nov 2025131 PMAQI
2nd Nov 2025162 PMAQI
2nd Nov 2025173 PMAQI
2nd Nov 2025174 PMAQI
2nd Nov 2025225 PMAQI
2nd Nov 2025256 PMAQI
2nd Nov 2025257 PMAQI
2nd Nov 2025208 PMAQI
2nd Nov 2025229 PMAQI
2nd Nov 20251210 PMAQI
2nd Nov 20251111 PMAQI
3rd Nov 20251112 AMAQI
3rd Nov 2025181 AMAQI
3rd Nov 2025112 AMAQI
3rd Nov 2025113 AMAQI
3rd Nov 2025144 AMAQI
7°C6/7°C
3rd Nov 2025225 AMAQI
3rd Nov 202586 AMAQI
3rd Nov 2025117 AMAQI
3rd Nov 2025148 AMAQI
3rd Nov 2025159 AMAQI
3rd Nov 20251110 AMAQI
3rd Nov 20251111 AMAQI
3rd Nov 20251412 PMAQI
3rd Nov 2025171 PMAQI
3rd Nov 2025282 PMAQI
3rd Nov 2025283 PMAQI
3rd Nov 2025264 PMAQI
3rd Nov 2025185 PMAQI
3rd Nov 2025206 PMAQI
3rd Nov 2025267 PMAQI
3rd Nov 2025308 PMAQI
3rd Nov 2025249 PMAQI
3rd Nov 20251910 PMAQI
3rd Nov 20251811 PMAQI
4th Nov 20251512 AMAQI
4th Nov 2025131 AMAQI
4th Nov 2025172 AMAQI
4th Nov 2025213 AMAQI
4th Nov 2025224 AMAQI
6°C3/7°C
4th Nov 2025225 AMAQI
4th Nov 2025276 AMAQI
4th Nov 2025277 AMAQI
4th Nov 2025238 AMAQI
4th Nov 2025269 AMAQI
4th Nov 20253010 AMAQI
4th Nov 20252811 AMAQI
4th Nov 20252812 PMAQI
4th Nov 2025461 PMAQI
4th Nov 2025412 PMAQI
4th Nov 2025523 PMAQI
4th Nov 2025534 PMAQI
4th Nov 2025535 PMAQI
4th Nov 2025556 PMAQI
4th Nov 2025557 PMAQI
4th Nov 2025538 PMAQI
4th Nov 2025539 PMAQI
4th Nov 20255210 PMAQI
4th Nov 20255111 PMAQI
5th Nov 20255112 AMAQI
5th Nov 2025461 AMAQI
5th Nov 2025452 AMAQI
5th Nov 2025443 AMAQI
5th Nov 2025424 AMAQI
5°C2/10°C
5th Nov 2025415 AMAQI
5 AM5th Nov 2025406 AMAQI
5th Nov 2025377 AMAQI
5th Nov 2025448 AMAQI
5th Nov 2025449 AMAQI
5th Nov 20254210 AMAQI
10 AM5th Nov 20253911 AMAQI
5th Nov 20253912 PMAQI
5th Nov 2025401 PMAQI
5th Nov 2025562 PMAQI
5th Nov 2025603 PMAQI
5th Nov 2025614 PMAQI
4 PM5th Nov 2025725 PMAQI
5th Nov 2025726 PMAQI
5th Nov 2025747 PMAQI
5th Nov 2025718 PMAQI
10 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
4 PM
40AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM - 8 AM
36AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 4 PM (Avg. 40), while the lowest AQI was between 5 AM to 8 AM (Avg. 36).
Night time
Avg. Highest Time
12 AM
40AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
6 PM - 7 PM
38AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 40), while the lowest AQI was between 6 PM to 7 PM (Avg. 38).
2025 Days Vs Air Quality
Otaru, Hokkaido, Japan
2025
97%
300
3%
8
Total number of days with different AQI categories in last 309 days in 2025 (56 days remaining)
Good
300 DaysModerate
8 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 309 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
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
31AQI
31AQI
8th August 2025
27AQI
27AQI
9th August 2025
26AQI
26AQI
10th August 2025
30AQI
30AQI
11th August 2025
31AQI
31AQI
12th August 2025
30AQI
30AQI
13th August 2025
30AQI
30AQI
14th August 2025
31AQI
31AQI
15th August 2025
30AQI
30AQI
16th August 2025
32AQI
32AQI
17th August 2025
33AQI
33AQI
18th August 2025
32AQI
32AQI
19th August 2025
38AQI
38AQI
20th August 2025
41AQI
41AQI
21st August 2025
35AQI
35AQI
22nd August 2025
35AQI
35AQI
23rd August 2025
42AQI
42AQI
24th August 2025
34AQI
34AQI
25th August 2025
34AQI
34AQI
26th August 2025
38AQI
38AQI
27th August 2025
34AQI
34AQI
28th August 2025
30AQI
30AQI
29th August 2025
32AQI
32AQI
30th August 2025
39AQI
39AQI
31st August 2025
35AQI
35AQI
1st September 2025
39AQI
39AQI
2nd September 2025
33AQI
33AQI
3rd September 2025
34AQI
34AQI
4th September 2025
31AQI
31AQI
5th September 2025
27AQI
27AQI
6th September 2025
34AQI
34AQI
7th September 2025
33AQI
33AQI
8th September 2025
33AQI
33AQI
9th September 2025
33AQI
33AQI
10th September 2025
31AQI
31AQI
11th September 2025
33AQI
33AQI
12th September 2025
34AQI
34AQI
13th September 2025
31AQI
31AQI
14th September 2025
33AQI
33AQI
15th September 2025
31AQI
31AQI
16th September 2025
30AQI
30AQI
17th September 2025
32AQI
32AQI
18th September 2025
24AQI
24AQI
19th September 2025
23AQI
23AQI
20th September 2025
23AQI
23AQI
21st September 2025
21AQI
21AQI
22nd September 2025
22AQI
22AQI
23rd September 2025
22AQI
22AQI
24th September 2025
23AQI
23AQI
25th September 2025
22AQI
22AQI
26th September 2025
27AQI
27AQI
27th September 2025
18AQI
18AQI
28th September 2025
19AQI
19AQI
29th September 2025
26AQI
26AQI
30th September 2025
27AQI
27AQI
1st October 2025
25AQI
25AQI
2nd October 2025
45AQI
45AQI
3rd October 2025
47AQI
47AQI
4th October 2025
59AQI
59AQI
5th October 2025
56AQI
56AQI
6th October 2025
40AQI
40AQI
7th October 2025
38AQI
38AQI
8th October 2025
45AQI
45AQI
9th October 2025
37AQI
37AQI
10th October 2025
37AQI
37AQI
11th October 2025
39AQI
39AQI
12th October 2025
40AQI
40AQI
13th October 2025
39AQI
39AQI
14th October 2025
40AQI
40AQI
15th October 2025
43AQI
43AQI
16th October 2025
42AQI
42AQI
17th October 2025
50AQI
50AQI
18th October 2025
36AQI
36AQI
19th October 2025
34AQI
34AQI
20th October 2025
41AQI
41AQI
21st October 2025
25AQI
25AQI
22nd October 2025
29AQI
29AQI
23rd October 2025
38AQI
38AQI
24th October 2025
27AQI
27AQI
25th October 2025
41AQI
41AQI
26th October 2025
39AQI
39AQI
27th October 2025
29AQI
29AQI
28th October 2025
61AQI
61AQI
29th October 2025
33AQI
33AQI
30th October 2025
47AQI
47AQI
31st October 2025
56AQI
56AQI
1st November 2025
38AQI
38AQI
2nd November 2025
19AQI
19AQI
3rd November 2025
17AQI
17AQI
4th November 2025
30AQI
30AQI
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
31AQI
32AQI
33AQI
29AQI
35AQI
38AQI
41AQI
34AQI
28AQI
41AQI
26AQI
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
31
30
27
4
4
300
8
Highest AQI recorded in
July41AQI
Lowest AQI recorded in
November26AQI
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 10.6% (worsened AQI) compared to previous years: 2020 (24), 2021 (30), 2022 (32), 2023 (36), 2024 (35).
