Muroran, 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
Muroran, Hokkaido, Japan
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2023
48AQILowest AQI recorded on
14th Aug 2024
12AQISame Day Analysis (2nd August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 34 of Good 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
Muroran, Hokkaido, Japan
AQI
Day
Night
.
4 AM4th Aug 2025
7 PM
3 AM5th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9AM4th Aug
42AQI
Avg. Lowest Time
6PM4th Aug
27AQI
In the last 24 hours,
Muroran's AQI reached its highest point of 42 at 9 AM during the Night, while the lowest point, 27, was recorded at 6 PM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Muroran, Hokkaido, 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 2025474 AMAQI
6th Jul 2025485 AMAQI
6th Jul 2025486 AMAQI
6th Jul 2025487 AMAQI
6th Jul 2025498 AMAQI
6th Jul 2025439 AMAQI
6th Jul 20254310 AMAQI
6th Jul 20254611 AMAQI
6th Jul 20255112 PMAQI
6th Jul 2025521 PMAQI
6th Jul 2025572 PMAQI
6th Jul 2025573 PMAQI
6th Jul 2025554 PMAQI
6th Jul 2025545 PMAQI
6th Jul 2025566 PMAQI
6th Jul 2025527 PMAQI
6th Jul 2025528 PMAQI
6th Jul 2025529 PMAQI
6th Jul 20255210 PMAQI
6th Jul 20255211 PMAQI
7th Jul 20255412 AMAQI
7th Jul 2025531 AMAQI
7th Jul 2025492 AMAQI
7th Jul 2025503 AMAQI
21°C18/24°C
7th Jul 2025514 AMAQI
7th Jul 2025505 AMAQI
7th Jul 2025506 AMAQI
7th Jul 2025507 AMAQI
7th Jul 2025498 AMAQI
7th Jul 2025539 AMAQI
7th Jul 20255110 AMAQI
7th Jul 20255511 AMAQI
7th Jul 20255512 PMAQI
7th Jul 2025571 PMAQI
7th Jul 2025492 PMAQI
7th Jul 2025503 PMAQI
7th Jul 2025424 PMAQI
7th Jul 2025375 PMAQI
7th Jul 2025416 PMAQI
7th Jul 2025427 PMAQI
7th Jul 2025448 PMAQI
7th Jul 2025529 PMAQI
7th Jul 20255310 PMAQI
7th Jul 20255511 PMAQI
8th Jul 20255512 AMAQI
8th Jul 2025531 AMAQI
8th Jul 2025522 AMAQI
8th Jul 2025523 AMAQI
22°C20/26°C
8th Jul 2025524 AMAQI
8th Jul 2025525 AMAQI
8th Jul 2025536 AMAQI
8th Jul 2025537 AMAQI
8th Jul 2025528 AMAQI
8th Jul 2025379 AMAQI
8th Jul 20253410 AMAQI
8th Jul 20254311 AMAQI
8th Jul 20253512 PMAQI
8th Jul 2025481 PMAQI
8th Jul 2025502 PMAQI
8th Jul 2025503 PMAQI
8th Jul 2025404 PMAQI
8th Jul 2025425 PMAQI
8th Jul 2025476 PMAQI
8th Jul 2025507 PMAQI
8th Jul 2025488 PMAQI
8th Jul 2025519 PMAQI
8th Jul 20255010 PMAQI
8th Jul 20255411 PMAQI
9th Jul 20255412 AMAQI
9th Jul 2025521 AMAQI
9th Jul 2025542 AMAQI
9th Jul 2025543 AMAQI
21°C18/25°C
9th Jul 2025544 AMAQI
9th Jul 2025535 AMAQI
9th Jul 2025536 AMAQI
9th Jul 2025537 AMAQI
9th Jul 2025538 AMAQI
9th Jul 2025439 AMAQI
9th Jul 20253810 AMAQI
9th Jul 20254111 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025471 PMAQI
9th Jul 2025522 PMAQI
9th Jul 2025523 PMAQI
9th Jul 2025504 PMAQI
9th Jul 2025505 PMAQI
9th Jul 2025496 PMAQI
9th Jul 2025447 PMAQI
9th Jul 2025438 PMAQI
9th Jul 2025529 PMAQI
9th Jul 20255110 PMAQI
9th Jul 20255111 PMAQI
10th Jul 20254812 AMAQI
10th Jul 2025511 AMAQI
10th Jul 2025532 AMAQI
10th Jul 2025543 AMAQI
20°C18/23°C
10th Jul 2025544 AMAQI
10th Jul 2025545 AMAQI
10th Jul 2025546 AMAQI
10th Jul 2025547 AMAQI
10th Jul 2025548 AMAQI
10th Jul 2025309 AMAQI
10th Jul 20252310 AMAQI
10th Jul 20252711 AMAQI
10th Jul 20252612 PMAQI
10th Jul 2025321 PMAQI
10th Jul 2025322 PMAQI
10th Jul 2025333 PMAQI
10th Jul 2025404 PMAQI
10th Jul 2025425 PMAQI
10th Jul 2025386 PMAQI
10th Jul 2025397 PMAQI
10th Jul 2025448 PMAQI
10th Jul 2025519 PMAQI
10th Jul 20255110 PMAQI
10th Jul 20254911 PMAQI
11th Jul 20254912 AMAQI
11th Jul 2025501 AMAQI
11th Jul 2025532 AMAQI
11th Jul 2025533 AMAQI
18°C16/19°C
11th Jul 2025524 AMAQI
11th Jul 2025515 AMAQI
11th Jul 2025526 AMAQI
11th Jul 2025527 AMAQI
11th Jul 2025528 AMAQI
11th Jul 2025399 AMAQI
11th Jul 20253510 AMAQI
11th Jul 20252611 AMAQI
11th Jul 20252312 PMAQI
11th Jul 2025321 PMAQI
11th Jul 2025342 PMAQI
11th Jul 2025363 PMAQI
11th Jul 2025384 PMAQI
11th Jul 2025335 PMAQI
11th Jul 2025396 PMAQI
11th Jul 2025387 PMAQI
11th Jul 2025468 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255010 PMAQI
11th Jul 20255011 PMAQI
12th Jul 20255112 AMAQI
12th Jul 2025521 AMAQI
12th Jul 2025522 AMAQI
12th Jul 2025523 AMAQI
15°C15/16°C
12th Jul 2025514 AMAQI
12th Jul 2025505 AMAQI
12th Jul 2025506 AMAQI
12th Jul 2025507 AMAQI
12th Jul 2025508 AMAQI
12th Jul 2025289 AMAQI
12th Jul 20252210 AMAQI
12th Jul 20252611 AMAQI
12th Jul 20253012 PMAQI
12th Jul 2025391 PMAQI
12th Jul 2025392 PMAQI
12th Jul 2025393 PMAQI
12th Jul 2025364 PMAQI
12th Jul 2025325 PMAQI
12th Jul 2025366 PMAQI
12th Jul 2025417 PMAQI
12th Jul 2025438 PMAQI
12th Jul 2025499 PMAQI
12th Jul 20254610 PMAQI
12th Jul 20254811 PMAQI
13th Jul 20255012 AMAQI
13th Jul 2025501 AMAQI
13th Jul 2025522 AMAQI
13th Jul 2025513 AMAQI
16°C14/18°C
13th Jul 2025514 AMAQI
13th Jul 2025505 AMAQI
13th Jul 2025516 AMAQI
13th Jul 2025507 AMAQI
13th Jul 2025518 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20254010 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20253212 PMAQI
13th Jul 2025371 PMAQI
13th Jul 2025392 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025404 PMAQI
13th Jul 2025405 PMAQI
13th Jul 2025406 PMAQI
13th Jul 2025417 PMAQI
13th Jul 2025478 PMAQI
13th Jul 2025509 PMAQI
13th Jul 20255010 PMAQI
13th Jul 20255111 PMAQI
14th Jul 20255012 AMAQI
14th Jul 2025501 AMAQI
14th Jul 2025502 AMAQI
14th Jul 2025503 AMAQI
18°C15/21°C
14th Jul 2025504 AMAQI
14th Jul 2025475 AMAQI
14th Jul 2025476 AMAQI
14th Jul 2025487 AMAQI
14th Jul 2025488 AMAQI
14th Jul 2025339 AMAQI
14th Jul 20253410 AMAQI
14th Jul 20254211 AMAQI
14th Jul 20254112 PMAQI
14th Jul 2025371 PMAQI
14th Jul 2025332 PMAQI
14th Jul 2025393 PMAQI
14th Jul 2025434 PMAQI
14th Jul 2025385 PMAQI
14th Jul 2025336 PMAQI
14th Jul 2025287 PMAQI
14th Jul 2025298 PMAQI
14th Jul 2025429 PMAQI
14th Jul 20254210 PMAQI
14th Jul 20254111 PMAQI
15th Jul 20254212 AMAQI
15th Jul 2025441 AMAQI
15th Jul 2025502 AMAQI
15th Jul 2025493 AMAQI
19°C17/21°C
15th Jul 2025494 AMAQI
15th Jul 2025485 AMAQI
15th Jul 2025486 AMAQI
15th Jul 2025497 AMAQI
15th Jul 2025498 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20251410 AMAQI
15th Jul 20251811 AMAQI
15th Jul 20251912 PMAQI
15th Jul 2025281 PMAQI
15th Jul 2025302 PMAQI
15th Jul 2025353 PMAQI
15th Jul 2025444 PMAQI
15th Jul 2025555 PMAQI
15th Jul 2025576 PMAQI
15th Jul 2025557 PMAQI
15th Jul 2025518 PMAQI
15th Jul 2025479 PMAQI
15th Jul 20254910 PMAQI
15th Jul 20255011 PMAQI
16th Jul 20254712 AMAQI
16th Jul 2025491 AMAQI
16th Jul 2025482 AMAQI
16th Jul 2025483 AMAQI
21°C20/22°C
16th Jul 2025464 AMAQI
16th Jul 2025465 AMAQI
16th Jul 2025446 AMAQI
16th Jul 2025457 AMAQI
16th Jul 2025458 AMAQI
16th Jul 2025329 AMAQI
16th Jul 20253010 AMAQI
16th Jul 20253011 AMAQI
16th Jul 20252612 PMAQI
16th Jul 2025281 PMAQI
16th Jul 2025302 PMAQI
16th Jul 2025343 PMAQI
16th Jul 2025374 PMAQI
16th Jul 2025395 PMAQI
16th Jul 2025336 PMAQI
16th Jul 2025397 PMAQI
16th Jul 2025358 PMAQI
16th Jul 2025419 PMAQI
16th Jul 20254110 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254012 AMAQI
17th Jul 2025421 AMAQI
17th Jul 2025462 AMAQI
17th Jul 2025473 AMAQI
20°C19/23°C
17th Jul 2025464 AMAQI
17th Jul 2025445 AMAQI
17th Jul 2025436 AMAQI
17th Jul 2025427 AMAQI
17th Jul 2025428 AMAQI
17th Jul 2025399 AMAQI
17th Jul 20254410 AMAQI
17th Jul 20253811 AMAQI
17th Jul 20253212 PMAQI
17th Jul 2025321 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025323 PMAQI
17th Jul 2025404 PMAQI
17th Jul 2025505 PMAQI
17th Jul 2025496 PMAQI
17th Jul 2025487 PMAQI
17th Jul 2025538 PMAQI
17th Jul 2025519 PMAQI
17th Jul 20254810 PMAQI
17th Jul 20254811 PMAQI
18th Jul 20254912 AMAQI
18th Jul 2025491 AMAQI
18th Jul 2025442 AMAQI
18th Jul 2025443 AMAQI
21°C19/23°C
18th Jul 2025444 AMAQI
18th Jul 2025445 AMAQI
18th Jul 2025436 AMAQI
18th Jul 2025427 AMAQI
18th Jul 2025438 AMAQI
18th Jul 2025529 AMAQI
18th Jul 20255010 AMAQI
18th Jul 20254511 AMAQI
18th Jul 20254012 PMAQI
18th Jul 2025351 PMAQI
18th Jul 2025352 PMAQI
18th Jul 2025343 PMAQI
18th Jul 2025344 PMAQI
18th Jul 2025385 PMAQI
18th Jul 2025356 PMAQI
18th Jul 2025347 PMAQI
18th Jul 2025388 PMAQI
18th Jul 2025419 PMAQI
18th Jul 20254110 PMAQI
18th Jul 20254311 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025401 AMAQI
19th Jul 2025462 AMAQI
19th Jul 2025463 AMAQI
22°C21/25°C
19th Jul 2025454 AMAQI
19th Jul 2025445 AMAQI
19th Jul 2025436 AMAQI
19th Jul 2025447 AMAQI
19th Jul 2025448 AMAQI
19th Jul 2025469 AMAQI
19th Jul 20253610 AMAQI
19th Jul 20253211 AMAQI
19th Jul 20253712 PMAQI
19th Jul 2025351 PMAQI
19th Jul 2025422 PMAQI
19th Jul 2025383 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025265 PMAQI
19th Jul 2025316 PMAQI
19th Jul 2025367 PMAQI
19th Jul 2025358 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253910 PMAQI
19th Jul 20253911 PMAQI
20th Jul 20253712 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025432 AMAQI
20th Jul 2025433 AMAQI
22°C20/25°C
20th Jul 2025434 AMAQI
20th Jul 2025425 AMAQI
20th Jul 2025436 AMAQI
20th Jul 2025437 AMAQI
20th Jul 2025438 AMAQI
20th Jul 2025409 AMAQI
20th Jul 20253410 AMAQI
20th Jul 20253311 AMAQI
20th Jul 20252812 PMAQI
20th Jul 2025301 PMAQI
20th Jul 2025292 PMAQI
20th Jul 2025303 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025255 PMAQI
20th Jul 2025326 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025308 PMAQI
20th Jul 2025429 PMAQI
20th Jul 20253510 PMAQI
20th Jul 20253811 PMAQI
21st Jul 20253912 AMAQI
21st Jul 2025391 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025413 AMAQI
23°C20/25°C
21st Jul 2025414 AMAQI
21st Jul 2025395 AMAQI
21st Jul 2025396 AMAQI
21st Jul 2025407 AMAQI
21st Jul 2025398 AMAQI
21st Jul 2025449 AMAQI
21st Jul 20254410 AMAQI
21st Jul 20254111 AMAQI
21st Jul 20254212 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025483 PMAQI
21st Jul 2025454 PMAQI
21st Jul 2025445 PMAQI
21st Jul 2025406 PMAQI
21st Jul 2025397 PMAQI
21st Jul 2025428 PMAQI
21st Jul 2025459 PMAQI
21st Jul 20254510 PMAQI
21st Jul 20254411 PMAQI
22nd Jul 20254212 AMAQI
22nd Jul 2025421 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025403 AMAQI
23°C20/26°C
22nd Jul 2025404 AMAQI
22nd Jul 2025425 AMAQI
22nd Jul 2025416 AMAQI
22nd Jul 2025417 AMAQI
22nd Jul 2025418 AMAQI
22nd Jul 2025449 AMAQI
22nd Jul 20254610 AMAQI
22nd Jul 20254511 AMAQI
22nd Jul 20254412 PMAQI
22nd Jul 2025431 PMAQI
22nd Jul 2025412 PMAQI
22nd Jul 2025473 PMAQI
22nd Jul 2025484 PMAQI
22nd Jul 2025505 PMAQI
22nd Jul 2025506 PMAQI
22nd Jul 2025417 PMAQI
22nd Jul 2025428 PMAQI
22nd Jul 2025439 PMAQI
22nd Jul 20254310 PMAQI
22nd Jul 20254511 PMAQI
23rd Jul 20254212 AMAQI
23rd Jul 2025401 AMAQI
23rd Jul 2025412 AMAQI
23rd Jul 2025413 AMAQI
23°C20/26°C
23rd Jul 2025414 AMAQI
23rd Jul 2025415 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025399 AMAQI
23rd Jul 20254110 AMAQI
23rd Jul 20254711 AMAQI
23rd Jul 20254812 PMAQI
23rd Jul 2025431 PMAQI
23rd Jul 2025382 PMAQI
23rd Jul 2025343 PMAQI
23rd Jul 2025294 PMAQI
23rd Jul 2025335 PMAQI
23rd Jul 2025346 PMAQI
23rd Jul 2025367 PMAQI
23rd Jul 2025378 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20253910 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20253612 AMAQI
24th Jul 2025401 AMAQI
24th Jul 2025432 AMAQI
24th Jul 2025423 AMAQI
23°C21/26°C
24th Jul 2025424 AMAQI
24th Jul 2025425 AMAQI
24th Jul 2025426 AMAQI
24th Jul 2025427 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025389 AMAQI
24th Jul 20252510 AMAQI
24th Jul 20252611 AMAQI
24th Jul 20252812 PMAQI
24th Jul 2025341 PMAQI
24th Jul 2025342 PMAQI
24th Jul 2025293 PMAQI
24th Jul 2025254 PMAQI
24th Jul 2025275 PMAQI
24th Jul 2025296 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025378 PMAQI
24th Jul 2025429 PMAQI
24th Jul 20253910 PMAQI
24th Jul 20254011 PMAQI
25th Jul 20254212 AMAQI
25th Jul 2025431 AMAQI
25th Jul 2025402 AMAQI
25th Jul 2025403 AMAQI
23°C20/27°C
25th Jul 2025404 AMAQI
25th Jul 2025395 AMAQI
25th Jul 2025396 AMAQI
25th Jul 2025397 AMAQI
25th Jul 2025398 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20252610 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20252812 PMAQI
25th Jul 2025311 PMAQI
25th Jul 2025392 PMAQI
25th Jul 2025423 PMAQI
25th Jul 2025404 PMAQI
25th Jul 2025405 PMAQI
25th Jul 2025426 PMAQI
25th Jul 2025457 PMAQI
25th Jul 2025378 PMAQI
25th Jul 2025409 PMAQI
25th Jul 20254510 PMAQI
25th Jul 20254211 PMAQI
26th Jul 20254012 AMAQI
26th Jul 2025431 AMAQI
26th Jul 2025422 AMAQI
26th Jul 2025423 AMAQI
23°C20/27°C
26th Jul 2025414 AMAQI
26th Jul 2025415 AMAQI
26th Jul 2025416 AMAQI
26th Jul 2025417 AMAQI
26th Jul 2025418 AMAQI
26th Jul 2025409 AMAQI
26th Jul 20254710 AMAQI
26th Jul 20254611 AMAQI
26th Jul 20254712 PMAQI
26th Jul 2025491 PMAQI
26th Jul 2025422 PMAQI
26th Jul 2025423 PMAQI
26th Jul 2025404 PMAQI
26th Jul 2025405 PMAQI
26th Jul 2025386 PMAQI
26th Jul 2025417 PMAQI
26th Jul 2025428 PMAQI
26th Jul 2025449 PMAQI
26th Jul 20254610 PMAQI
26th Jul 20254211 PMAQI
27th Jul 20254112 AMAQI
27th Jul 2025401 AMAQI
27th Jul 2025402 AMAQI
27th Jul 2025413 AMAQI
21°C20/23°C
27th Jul 2025424 AMAQI
27th Jul 2025425 AMAQI
27th Jul 2025426 AMAQI
27th Jul 2025437 AMAQI
27th Jul 2025448 AMAQI
27th Jul 2025509 AMAQI
27th Jul 20255110 AMAQI
27th Jul 20255111 AMAQI
27th Jul 20254812 PMAQI
27th Jul 2025451 PMAQI
27th Jul 2025462 PMAQI
27th Jul 2025523 PMAQI
27th Jul 2025454 PMAQI
27th Jul 2025425 PMAQI
27th Jul 2025446 PMAQI
27th Jul 2025417 PMAQI
27th Jul 2025378 PMAQI
27th Jul 2025389 PMAQI
27th Jul 20253810 PMAQI
27th Jul 20253611 PMAQI
28th Jul 20254012 AMAQI
28th Jul 2025431 AMAQI
28th Jul 2025412 AMAQI
28th Jul 2025413 AMAQI
22°C21/24°C
28th Jul 2025424 AMAQI
28th Jul 2025435 AMAQI
28th Jul 2025426 AMAQI
28th Jul 2025427 AMAQI
28th Jul 2025438 AMAQI
28th Jul 2025399 AMAQI
28th Jul 20253210 AMAQI
28th Jul 20254311 AMAQI
28th Jul 20254812 PMAQI
28th Jul 2025451 PMAQI
28th Jul 2025392 PMAQI
28th Jul 2025353 PMAQI
28th Jul 2025464 PMAQI
28th Jul 2025365 PMAQI
28th Jul 2025396 PMAQI
28th Jul 2025387 PMAQI
28th Jul 2025408 PMAQI
28th Jul 2025439 PMAQI
28th Jul 20254510 PMAQI
28th Jul 20254611 PMAQI
29th Jul 20255012 AMAQI
29th Jul 2025431 AMAQI
29th Jul 2025432 AMAQI
29th Jul 2025433 AMAQI
21°C20/24°C
29th Jul 2025424 AMAQI
29th Jul 2025425 AMAQI
29th Jul 2025436 AMAQI
29th Jul 2025427 AMAQI
29th Jul 2025428 AMAQI
29th Jul 2025449 AMAQI
29th Jul 20255310 AMAQI
29th Jul 20255211 AMAQI
29th Jul 20255712 PMAQI
29th Jul 2025571 PMAQI
29th Jul 2025492 PMAQI
29th Jul 2025383 PMAQI
29th Jul 2025404 PMAQI
29th Jul 2025425 PMAQI
29th Jul 2025416 PMAQI
29th Jul 2025427 PMAQI
29th Jul 2025478 PMAQI
29th Jul 2025489 PMAQI
29th Jul 20254410 PMAQI
29th Jul 20253911 PMAQI
30th Jul 20253912 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025453 AMAQI
22°C21/24°C
30th Jul 2025454 AMAQI
30th Jul 2025465 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025467 AMAQI
30th Jul 2025468 AMAQI
30th Jul 2025329 AMAQI
30th Jul 20252410 AMAQI
30th Jul 20252911 AMAQI
30th Jul 20253712 PMAQI
30th Jul 2025351 PMAQI
30th Jul 2025332 PMAQI
30th Jul 2025353 PMAQI
30th Jul 2025314 PMAQI
30th Jul 2025345 PMAQI
30th Jul 2025366 PMAQI
30th Jul 2025357 PMAQI
30th Jul 2025348 PMAQI
30th Jul 2025389 PMAQI
30th Jul 20253810 PMAQI
30th Jul 20253811 PMAQI
31st Jul 20253812 AMAQI
31st Jul 2025401 AMAQI
31st Jul 2025442 AMAQI
31st Jul 2025443 AMAQI
22°C20/23°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 20253511 AMAQI
31st Jul 20253312 PMAQI
31st Jul 2025331 PMAQI
31st Jul 2025352 PMAQI
31st Jul 2025373 PMAQI
31st Jul 2025394 PMAQI
31st Jul 2025365 PMAQI
31st Jul 2025316 PMAQI
31st Jul 2025337 PMAQI
31st Jul 2025388 PMAQI
31st Jul 2025379 PMAQI
31st Jul 20253810 PMAQI
31st Jul 20253211 PMAQI
1st Aug 20253512 AMAQI
1st Aug 2025391 AMAQI
1st Aug 2025442 AMAQI
1st Aug 2025473 AMAQI
21°C20/23°C
1st Aug 2025494 AMAQI
1st Aug 2025455 AMAQI
1st Aug 2025506 AMAQI
1st Aug 2025527 AMAQI
1st Aug 2025548 AMAQI
1st Aug 2025479 AMAQI
1st Aug 20253910 AMAQI
1st Aug 20253711 AMAQI
1st Aug 20253912 PMAQI
1st Aug 2025351 PMAQI
1st Aug 2025422 PMAQI
1st Aug 2025273 PMAQI
1st Aug 2025344 PMAQI
1st Aug 2025325 PMAQI
1st Aug 2025356 PMAQI
1st Aug 2025257 PMAQI
1st Aug 2025318 PMAQI
1st Aug 2025369 PMAQI
1st Aug 20253810 PMAQI
1st Aug 20253511 PMAQI
2nd Aug 20253312 AMAQI
2nd Aug 2025381 AMAQI
2nd Aug 2025382 AMAQI
2nd Aug 2025393 AMAQI
21°C19/23°C
2nd Aug 2025414 AMAQI
2nd Aug 2025415 AMAQI
2nd Aug 2025416 AMAQI
2nd Aug 2025407 AMAQI
2nd Aug 2025408 AMAQI
2nd Aug 2025329 AMAQI
2nd Aug 20252710 AMAQI
2nd Aug 20252611 AMAQI
2nd Aug 20252612 PMAQI
2nd Aug 2025231 PMAQI
2nd Aug 2025282 PMAQI
2nd Aug 2025243 PMAQI
2nd Aug 2025264 PMAQI
2nd Aug 2025255 PMAQI
2nd Aug 2025266 PMAQI
2nd Aug 2025367 PMAQI
2nd Aug 2025348 PMAQI
2nd Aug 2025379 PMAQI
2nd Aug 20253410 PMAQI
2nd Aug 20253711 PMAQI
3rd Aug 20253112 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
21°C20/24°C
3rd Aug 2025384 AMAQI
3rd Aug 2025375 AMAQI
3rd Aug 2025376 AMAQI
3rd Aug 2025367 AMAQI
3rd Aug 2025378 AMAQI
3rd Aug 2025329 AMAQI
3rd Aug 20253810 AMAQI
3rd Aug 20253511 AMAQI
3rd Aug 20253912 PMAQI
3rd Aug 2025481 PMAQI
3rd Aug 2025412 PMAQI
3rd Aug 2025363 PMAQI
3rd Aug 2025384 PMAQI
3rd Aug 2025375 PMAQI
3rd Aug 2025376 PMAQI
3rd Aug 2025367 PMAQI
3rd Aug 2025328 PMAQI
3rd Aug 2025339 PMAQI
3rd Aug 20253310 PMAQI
3rd Aug 20253511 PMAQI
4th Aug 20253412 AMAQI
4th Aug 2025361 AMAQI
4th Aug 2025352 AMAQI
4th Aug 2025363 AMAQI
23°C21/27°C
4th Aug 2025364 AMAQI
4th Aug 2025375 AMAQI
4th Aug 2025366 AMAQI
4th Aug 2025377 AMAQI
4th Aug 2025388 AMAQI
4th Aug 2025429 AMAQI
4th Aug 20253310 AMAQI
4th Aug 20253911 AMAQI
4th Aug 20252812 PMAQI
4th Aug 2025341 PMAQI
4th Aug 2025352 PMAQI
4th Aug 2025373 PMAQI
4th Aug 2025304 PMAQI
4th Aug 2025345 PMAQI
4th Aug 2025276 PMAQI
4th Aug 2025417 PMAQI
4th Aug 2025328 PMAQI
4th Aug 2025349 PMAQI
4th Aug 20253610 PMAQI
4th Aug 20253711 PMAQI
5th Aug 20253912 AMAQI
5th Aug 2025371 AMAQI
5th Aug 2025382 AMAQI
5th Aug 2025363 AMAQI
--°C/°C
5th Aug 2025404 AMAQI
4 AM11 AM
7 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
45AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
10 AM - 12 PM
37AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 45), while the lowest AQI was between 10 AM to 12 PM (Avg. 37).
Night time
Avg. Highest Time
12 AM - 3 AM
44AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
8 PM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 44), while the lowest AQI was between 8 PM to 8 PM (Avg. 40).
2025 Days Vs Air Quality
Muroran, Hokkaido, Japan
2025
99%
211
1%
3
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
211 DaysModerate
3 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 99%
Health Risk Level:
Very Low
In 2025, 99% of 216 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
Muroran, 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
27AQI
27AQI
4th January 2025
27AQI
27AQI
5th January 2025
27AQI
27AQI
6th January 2025
27AQI
27AQI
7th January 2025
40AQI
40AQI
8th January 2025
37AQI
37AQI
9th January 2025
36AQI
36AQI
10th January 2025
33AQI
33AQI
11th January 2025
29AQI
29AQI
12th January 2025
29AQI
29AQI
13th January 2025
30AQI
30AQI
14th January 2025
36AQI
36AQI
15th January 2025
32AQI
32AQI
16th January 2025
27AQI
27AQI
17th January 2025
27AQI
27AQI
18th January 2025
27AQI
27AQI
19th January 2025
24AQI
24AQI
20th January 2025
38AQI
38AQI
21st January 2025
35AQI
35AQI
22nd January 2025
35AQI
35AQI
23rd January 2025
32AQI
32AQI
24th January 2025
32AQI
32AQI
25th January 2025
32AQI
32AQI
26th January 2025
30AQI
30AQI
27th January 2025
28AQI
28AQI
28th January 2025
27AQI
27AQI
29th January 2025
26AQI
26AQI
30th January 2025
27AQI
27AQI
31st January 2025
26AQI
26AQI
1st February 2025
25AQI
25AQI
2nd February 2025
25AQI
25AQI
3rd February 2025
27AQI
27AQI
4th February 2025
27AQI
27AQI
5th February 2025
28AQI
28AQI
6th February 2025
28AQI
28AQI
7th February 2025
28AQI
28AQI
8th February 2025
29AQI
29AQI
9th February 2025
28AQI
28AQI
10th February 2025
28AQI
28AQI
11th February 2025
29AQI
29AQI
12th February 2025
34AQI
34AQI
13th February 2025
42AQI
42AQI
14th February 2025
31AQI
31AQI
15th February 2025
43AQI
43AQI
16th February 2025
32AQI
32AQI
17th February 2025
47AQI
47AQI
18th February 2025
29AQI
29AQI
19th February 2025
32AQI
32AQI
20th February 2025
26AQI
26AQI
21st February 2025
27AQI
27AQI
22nd February 2025
27AQI
27AQI
23rd February 2025
27AQI
27AQI
24th February 2025
29AQI
29AQI
25th February 2025
32AQI
32AQI
26th February 2025
36AQI
36AQI
27th February 2025
35AQI
35AQI
28th February 2025
49AQI
49AQI
1st March 2025
43AQI
43AQI
2nd March 2025
41AQI
41AQI
3rd March 2025
35AQI
35AQI
4th March 2025
33AQI
33AQI
5th March 2025
31AQI
31AQI
6th March 2025
29AQI
29AQI
7th March 2025
31AQI
31AQI
8th March 2025
31AQI
31AQI
9th March 2025
33AQI
33AQI
10th March 2025
36AQI
36AQI
11th March 2025
37AQI
37AQI
12th March 2025
51AQI
51AQI
13th March 2025
42AQI
42AQI
14th March 2025
32AQI
32AQI
15th March 2025
26AQI
26AQI
16th March 2025
21AQI
21AQI
17th March 2025
21AQI
21AQI
18th March 2025
19AQI
19AQI
19th March 2025
22AQI
22AQI
20th March 2025
45AQI
45AQI
21st March 2025
46AQI
46AQI
22nd March 2025
44AQI
44AQI
23rd March 2025
33AQI
33AQI
24th March 2025
34AQI
34AQI
25th March 2025
48AQI
48AQI
26th March 2025
37AQI
37AQI
27th March 2025
34AQI
34AQI
28th March 2025
32AQI
32AQI
29th March 2025
26AQI
26AQI
30th March 2025
27AQI
27AQI
31st March 2025
28AQI
28AQI
1st April 2025
32AQI
32AQI
2nd April 2025
26AQI
26AQI
3rd April 2025
28AQI
28AQI
4th April 2025
23AQI
23AQI
5th April 2025
31AQI
31AQI
6th April 2025
32AQI
32AQI
7th April 2025
24AQI
24AQI
8th April 2025
28AQI
28AQI
9th April 2025
29AQI
29AQI
10th April 2025
45AQI
45AQI
11th April 2025
45AQI
45AQI
12th April 2025
45AQI
45AQI
13th April 2025
38AQI
38AQI
14th April 2025
28AQI
28AQI
15th April 2025
30AQI
30AQI
16th April 2025
19AQI
19AQI
17th April 2025
27AQI
27AQI
18th April 2025
24AQI
24AQI
19th April 2025
30AQI
30AQI
20th April 2025
23AQI
23AQI
21st April 2025
23AQI
23AQI
22nd April 2025
20AQI
20AQI
23rd April 2025
20AQI
20AQI
24th April 2025
22AQI
22AQI
25th April 2025
18AQI
18AQI
26th April 2025
38AQI
38AQI
27th April 2025
20AQI
20AQI
28th April 2025
26AQI
26AQI
29th April 2025
18AQI
18AQI
30th April 2025
22AQI
22AQI
1st May 2025
20AQI
20AQI
2nd May 2025
34AQI
34AQI
3rd May 2025
36AQI
36AQI
4th May 2025
37AQI
37AQI
5th May 2025
31AQI
31AQI
6th May 2025
29AQI
29AQI
7th May 2025
31AQI
31AQI
8th May 2025
33AQI
33AQI
9th May 2025
36AQI
36AQI
10th May 2025
28AQI
28AQI
11th May 2025
30AQI
30AQI
12th May 2025
30AQI
30AQI
13th May 2025
34AQI
34AQI
14th May 2025
48AQI
48AQI
15th May 2025
39AQI
39AQI
16th May 2025
55AQI
55AQI
17th May 2025
33AQI
33AQI
18th May 2025
36AQI
36AQI
19th May 2025
47AQI
47AQI
20th May 2025
48AQI
48AQI
21st May 2025
45AQI
45AQI
22nd May 2025
42AQI
42AQI
23rd May 2025
35AQI
35AQI
24th May 2025
37AQI
37AQI
25th May 2025
26AQI
26AQI
26th May 2025
26AQI
26AQI
27th May 2025
31AQI
31AQI
28th May 2025
38AQI
38AQI
29th May 2025
40AQI
40AQI
30th May 2025
39AQI
39AQI
31st May 2025
39AQI
39AQI
1st June 2025
35AQI
35AQI
2nd June 2025
38AQI
38AQI
3rd June 2025
37AQI
37AQI
4th June 2025
30AQI
30AQI
5th June 2025
26AQI
26AQI
6th June 2025
34AQI
34AQI
7th June 2025
44AQI
44AQI
8th June 2025
42AQI
42AQI
9th June 2025
44AQI
44AQI
10th June 2025
52AQI
52AQI
11th June 2025
41AQI
41AQI
12th June 2025
38AQI
38AQI
13th June 2025
36AQI
36AQI
14th June 2025
41AQI
41AQI
15th June 2025
33AQI
33AQI
16th June 2025
39AQI
39AQI
17th June 2025
34AQI
34AQI
18th June 2025
42AQI
42AQI
19th June 2025
46AQI
46AQI
20th June 2025
42AQI
42AQI
21st June 2025
38AQI
38AQI
22nd June 2025
41AQI
41AQI
23rd June 2025
38AQI
38AQI
24th June 2025
39AQI
39AQI
25th June 2025
41AQI
41AQI
26th June 2025
42AQI
42AQI
27th June 2025
36AQI
36AQI
28th June 2025
36AQI
36AQI
29th June 2025
38AQI
38AQI
30th June 2025
43AQI
43AQI
1st July 2025
45AQI
45AQI
2nd July 2025
43AQI
43AQI
3rd July 2025
47AQI
47AQI
4th July 2025
49AQI
49AQI
5th July 2025
46AQI
46AQI
6th July 2025
50AQI
50AQI
7th July 2025
50AQI
50AQI
8th July 2025
49AQI
49AQI
9th July 2025
50AQI
50AQI
10th July 2025
45AQI
45AQI
11th July 2025
45AQI
45AQI
12th July 2025
44AQI
44AQI
13th July 2025
46AQI
46AQI
14th July 2025
42AQI
42AQI
15th July 2025
44AQI
44AQI
16th July 2025
40AQI
40AQI
17th July 2025
44AQI
44AQI
18th July 2025
42AQI
42AQI
19th July 2025
39AQI
39AQI
20th July 2025
36AQI
36AQI
21st July 2025
42AQI
42AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
40AQI
40AQI
24th July 2025
36AQI
36AQI
25th July 2025
39AQI
39AQI
26th July 2025
42AQI
42AQI
27th July 2025
43AQI
43AQI
28th July 2025
41AQI
41AQI
29th July 2025
45AQI
45AQI
30th July 2025
39AQI
39AQI
31st July 2025
38AQI
38AQI
1st August 2025
39AQI
39AQI
2nd August 2025
34AQI
34AQI
30AQI
31AQI
34AQI
28AQI
36AQI
39AQI
43AQI
37AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202535AQI
31
28
30
1
30
30
1
29
1
31
2
211
3
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
April28AQI
202435AQI
30
1
26
3
29
2
26
4
24
7
26
4
21
10
31
29
1
30
1
29
1
31
332
34
Highest AQI recorded in
July45AQI
Lowest AQI recorded in
December26AQI
202340AQI
30
1
23
5
18
13
18
12
24
7
27
3
26
5
29
26
1
3
31
25
2
31
308
49
3
Highest AQI recorded in
March52AQI
Lowest AQI recorded in
December28AQI
202237AQI
16
2
24
1
2
25
4
25
3
28
1
31
151
11
Highest AQI recorded in
September39AQI
Lowest AQI recorded in
August31AQI
202029AQI
11
2
20
1
18
29
1
31
30
18
1
30
25
3
14
226
8
Highest AQI recorded in
March39AQI
Lowest AQI recorded in
July25AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2023(Avg.)
40AQILeast Polluted Year Recorded
2020(Avg.)
29AQIMuroran's annual 2025 AQI (35) shows an average percentage change of -1.01% (improved AQI) compared to previous years: 2020 (29), 2022 (37), 2023 (40), 2024 (35).
