Hakodate, 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+
September Air Quality Analysis
Hakodate, Hokkaido, Japan
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Sep 2024
46AQILowest AQI recorded on
27th Sep 2025
19AQISame Day Analysis (28th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 24 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Hakodate, Hokkaido, Japan
AQI
Day
Night
.
5 AM29th Sep 2025
5 PM
4 AM30th Sep 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
2PM29th Sep
52AQI
Avg. Lowest Time
10AM29th Sep
34AQI
In the last 24 hours,
Hakodate's AQI reached its highest point of 52 at 2 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Hakodate, Hokkaido, Japan
AugSep
31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th
Day
Night
31st Aug 2025445 AMAQI
31st Aug 2025476 AMAQI
31st Aug 2025467 AMAQI
31st Aug 2025468 AMAQI
31st Aug 2025319 AMAQI
31st Aug 20253610 AMAQI
31st Aug 20254011 AMAQI
31st Aug 20254112 PMAQI
31st Aug 2025381 PMAQI
31st Aug 2025282 PMAQI
31st Aug 2025363 PMAQI
31st Aug 2025354 PMAQI
31st Aug 2025355 PMAQI
31st Aug 2025396 PMAQI
31st Aug 2025387 PMAQI
31st Aug 2025378 PMAQI
31st Aug 2025419 PMAQI
31st Aug 20254010 PMAQI
31st Aug 20255211 PMAQI
1st Sep 20254612 AMAQI
1st Sep 2025461 AMAQI
1st Sep 2025482 AMAQI
1st Sep 2025443 AMAQI
1st Sep 2025464 AMAQI
22°C19/25°C
1st Sep 2025465 AMAQI
1st Sep 2025486 AMAQI
1st Sep 2025477 AMAQI
1st Sep 2025488 AMAQI
1st Sep 2025389 AMAQI
1st Sep 20253610 AMAQI
1st Sep 20253811 AMAQI
1st Sep 20253612 PMAQI
1st Sep 2025441 PMAQI
1st Sep 2025362 PMAQI
1st Sep 2025403 PMAQI
1st Sep 2025464 PMAQI
1st Sep 2025385 PMAQI
1st Sep 2025446 PMAQI
1st Sep 2025517 PMAQI
1st Sep 2025448 PMAQI
1st Sep 2025479 PMAQI
1st Sep 20254810 PMAQI
1st Sep 20254811 PMAQI
2nd Sep 20255012 AMAQI
2nd Sep 2025491 AMAQI
2nd Sep 2025462 AMAQI
2nd Sep 2025473 AMAQI
2nd Sep 2025464 AMAQI
24°C21/26°C
2nd Sep 2025475 AMAQI
2nd Sep 2025486 AMAQI
2nd Sep 2025467 AMAQI
2nd Sep 2025478 AMAQI
2nd Sep 2025349 AMAQI
2nd Sep 20253510 AMAQI
2nd Sep 20254911 AMAQI
2nd Sep 20252612 PMAQI
2nd Sep 2025281 PMAQI
2nd Sep 2025282 PMAQI
2nd Sep 2025223 PMAQI
2nd Sep 2025284 PMAQI
2nd Sep 2025275 PMAQI
2nd Sep 2025246 PMAQI
2nd Sep 2025257 PMAQI
2nd Sep 2025288 PMAQI
2nd Sep 2025359 PMAQI
2nd Sep 20253410 PMAQI
2nd Sep 20253911 PMAQI
3rd Sep 20253712 AMAQI
3rd Sep 2025501 AMAQI
3rd Sep 2025472 AMAQI
3rd Sep 2025483 AMAQI
3rd Sep 2025444 AMAQI
24°C22/26°C
3rd Sep 2025435 AMAQI
3rd Sep 2025456 AMAQI
3rd Sep 2025447 AMAQI
3rd Sep 2025438 AMAQI
3rd Sep 2025249 AMAQI
3rd Sep 20253210 AMAQI
3rd Sep 20252811 AMAQI
3rd Sep 20253312 PMAQI
3rd Sep 2025441 PMAQI
3rd Sep 2025262 PMAQI
3rd Sep 2025273 PMAQI
3rd Sep 2025324 PMAQI
3rd Sep 2025265 PMAQI
3rd Sep 2025316 PMAQI
3rd Sep 2025317 PMAQI
3rd Sep 2025358 PMAQI
3rd Sep 2025369 PMAQI
3rd Sep 20253710 PMAQI
3rd Sep 20253611 PMAQI
4th Sep 20253812 AMAQI
4th Sep 2025441 AMAQI
4th Sep 2025472 AMAQI
4th Sep 2025463 AMAQI
4th Sep 2025444 AMAQI
23°C19/26°C
4th Sep 2025425 AMAQI
4th Sep 2025426 AMAQI
4th Sep 2025427 AMAQI
4th Sep 2025418 AMAQI
4th Sep 2025289 AMAQI
4th Sep 20253210 AMAQI
4th Sep 20253811 AMAQI
4th Sep 20253612 PMAQI
4th Sep 2025291 PMAQI
4th Sep 2025232 PMAQI
4th Sep 2025223 PMAQI
4th Sep 2025284 PMAQI
4th Sep 2025325 PMAQI
4th Sep 2025326 PMAQI
4th Sep 2025327 PMAQI
4th Sep 2025308 PMAQI
4th Sep 2025299 PMAQI
4th Sep 20253410 PMAQI
4th Sep 20252811 PMAQI
5th Sep 20253212 AMAQI
5th Sep 2025341 AMAQI
5th Sep 2025442 AMAQI
5th Sep 2025443 AMAQI
5th Sep 2025394 AMAQI
21°C18/24°C
5th Sep 2025385 AMAQI
5th Sep 2025386 AMAQI
5th Sep 2025407 AMAQI
5th Sep 2025398 AMAQI
5th Sep 2025369 AMAQI
5th Sep 20253210 AMAQI
5th Sep 20252911 AMAQI
5th Sep 20252512 PMAQI
5th Sep 2025371 PMAQI
5th Sep 2025412 PMAQI
5th Sep 2025343 PMAQI
5th Sep 2025364 PMAQI
5th Sep 2025385 PMAQI
5th Sep 2025306 PMAQI
5th Sep 2025397 PMAQI
5th Sep 2025368 PMAQI
5th Sep 2025349 PMAQI
5th Sep 20253210 PMAQI
5th Sep 20253411 PMAQI
6th Sep 20253512 AMAQI
6th Sep 2025341 AMAQI
6th Sep 2025352 AMAQI
6th Sep 2025363 AMAQI
6th Sep 2025374 AMAQI
22°C20/25°C
6th Sep 2025415 AMAQI
6th Sep 2025466 AMAQI
6th Sep 2025347 AMAQI
6th Sep 2025378 AMAQI
6th Sep 2025319 AMAQI
6th Sep 20253810 AMAQI
6th Sep 20253211 AMAQI
6th Sep 20253412 PMAQI
6th Sep 2025341 PMAQI
6th Sep 2025382 PMAQI
6th Sep 2025443 PMAQI
6th Sep 2025454 PMAQI
6th Sep 2025355 PMAQI
6th Sep 2025406 PMAQI
6th Sep 2025317 PMAQI
6th Sep 2025348 PMAQI
6th Sep 2025409 PMAQI
6th Sep 20253710 PMAQI
6th Sep 20254011 PMAQI
7th Sep 20254012 AMAQI
7th Sep 2025381 AMAQI
7th Sep 2025392 AMAQI
7th Sep 2025373 AMAQI
7th Sep 2025444 AMAQI
22°C19/26°C
7th Sep 2025375 AMAQI
7th Sep 2025356 AMAQI
7th Sep 2025367 AMAQI
7th Sep 2025368 AMAQI
7th Sep 2025369 AMAQI
7th Sep 20252610 AMAQI
7th Sep 20253011 AMAQI
7th Sep 20254212 PMAQI
7th Sep 2025301 PMAQI
7th Sep 2025292 PMAQI
7th Sep 2025293 PMAQI
7th Sep 2025284 PMAQI
7th Sep 2025315 PMAQI
7th Sep 2025286 PMAQI
7th Sep 2025307 PMAQI
7th Sep 2025328 PMAQI
7th Sep 2025349 PMAQI
7th Sep 20253210 PMAQI
7th Sep 20253011 PMAQI
8th Sep 20253612 AMAQI
8th Sep 2025381 AMAQI
8th Sep 2025372 AMAQI
8th Sep 2025383 AMAQI
8th Sep 2025364 AMAQI
22°C20/25°C
8th Sep 2025345 AMAQI
8th Sep 2025346 AMAQI
8th Sep 2025357 AMAQI
8th Sep 2025348 AMAQI
8th Sep 2025339 AMAQI
8th Sep 20254210 AMAQI
8th Sep 20254011 AMAQI
8th Sep 20254112 PMAQI
8th Sep 2025481 PMAQI
8th Sep 2025402 PMAQI
8th Sep 2025323 PMAQI
8th Sep 2025334 PMAQI
8th Sep 2025385 PMAQI
8th Sep 2025316 PMAQI
8th Sep 2025417 PMAQI
8th Sep 2025328 PMAQI
8th Sep 2025349 PMAQI
8th Sep 20253410 PMAQI
8th Sep 20253411 PMAQI
9th Sep 20253312 AMAQI
9th Sep 2025341 AMAQI
9th Sep 2025342 AMAQI
9th Sep 2025343 AMAQI
9th Sep 2025354 AMAQI
21°C17/24°C
9th Sep 2025355 AMAQI
9th Sep 2025346 AMAQI
9th Sep 2025347 AMAQI
9th Sep 2025358 AMAQI
9th Sep 2025459 AMAQI
9th Sep 20254210 AMAQI
9th Sep 20254111 AMAQI
9th Sep 20254712 PMAQI
9th Sep 2025511 PMAQI
9th Sep 2025492 PMAQI
9th Sep 2025503 PMAQI
9th Sep 2025574 PMAQI
9th Sep 2025525 PMAQI
9th Sep 2025486 PMAQI
9th Sep 2025497 PMAQI
9th Sep 2025458 PMAQI
9th Sep 2025409 PMAQI
9th Sep 20253510 PMAQI
9th Sep 20253711 PMAQI
10th Sep 20253712 AMAQI
10th Sep 2025361 AMAQI
10th Sep 2025342 AMAQI
10th Sep 2025353 AMAQI
10th Sep 2025364 AMAQI
22°C19/26°C
10th Sep 2025365 AMAQI
10th Sep 2025366 AMAQI
10th Sep 2025377 AMAQI
10th Sep 2025388 AMAQI
10th Sep 2025449 AMAQI
10th Sep 20253210 AMAQI
10th Sep 20253611 AMAQI
10th Sep 20253212 PMAQI
10th Sep 2025321 PMAQI
10th Sep 2025342 PMAQI
10th Sep 2025443 PMAQI
10th Sep 2025364 PMAQI
10th Sep 2025295 PMAQI
10th Sep 2025336 PMAQI
10th Sep 2025307 PMAQI
10th Sep 2025368 PMAQI
10th Sep 2025369 PMAQI
10th Sep 20253310 PMAQI
10th Sep 20253311 PMAQI
11th Sep 20253512 AMAQI
11th Sep 2025381 AMAQI
11th Sep 2025382 AMAQI
11th Sep 2025373 AMAQI
11th Sep 2025354 AMAQI
22°C19/25°C
11th Sep 2025365 AMAQI
11th Sep 2025356 AMAQI
11th Sep 2025367 AMAQI
11th Sep 2025348 AMAQI
11th Sep 2025299 AMAQI
11th Sep 20254010 AMAQI
11th Sep 20253111 AMAQI
11th Sep 20253412 PMAQI
11th Sep 2025431 PMAQI
11th Sep 2025402 PMAQI
11th Sep 2025423 PMAQI
11th Sep 2025354 PMAQI
11th Sep 2025405 PMAQI
11th Sep 2025446 PMAQI
11th Sep 2025407 PMAQI
11th Sep 2025448 PMAQI
11th Sep 2025339 PMAQI
11th Sep 20253510 PMAQI
11th Sep 20253311 PMAQI
12th Sep 20253412 AMAQI
12th Sep 2025361 AMAQI
12th Sep 2025382 AMAQI
12th Sep 2025373 AMAQI
12th Sep 2025374 AMAQI
21°C18/24°C
12th Sep 2025355 AMAQI
12th Sep 2025366 AMAQI
12th Sep 2025367 AMAQI
12th Sep 2025358 AMAQI
12th Sep 2025349 AMAQI
12th Sep 20253510 AMAQI
12th Sep 20253211 AMAQI
12th Sep 20253212 PMAQI
12th Sep 2025381 PMAQI
12th Sep 2025382 PMAQI
12th Sep 2025353 PMAQI
12th Sep 2025444 PMAQI
12th Sep 2025385 PMAQI
12th Sep 2025416 PMAQI
12th Sep 2025447 PMAQI
12th Sep 2025418 PMAQI
12th Sep 2025369 PMAQI
12th Sep 20253710 PMAQI
12th Sep 20254011 PMAQI
13th Sep 20253912 AMAQI
13th Sep 2025391 AMAQI
13th Sep 2025372 AMAQI
13th Sep 2025373 AMAQI
13th Sep 2025374 AMAQI
21°C18/24°C
13th Sep 2025375 AMAQI
13th Sep 2025366 AMAQI
13th Sep 2025387 AMAQI
13th Sep 2025368 AMAQI
13th Sep 2025389 AMAQI
13th Sep 20253810 AMAQI
13th Sep 20253711 AMAQI
13th Sep 20254112 PMAQI
13th Sep 2025341 PMAQI
13th Sep 2025302 PMAQI
13th Sep 2025283 PMAQI
13th Sep 2025284 PMAQI
13th Sep 2025265 PMAQI
13th Sep 2025246 PMAQI
13th Sep 2025267 PMAQI
13th Sep 2025298 PMAQI
13th Sep 2025289 PMAQI
13th Sep 20252710 PMAQI
13th Sep 20252711 PMAQI
14th Sep 20253412 AMAQI
14th Sep 2025381 AMAQI
14th Sep 2025382 AMAQI
14th Sep 2025383 AMAQI
14th Sep 2025364 AMAQI
22°C20/24°C
14th Sep 2025365 AMAQI
14th Sep 2025366 AMAQI
14th Sep 2025367 AMAQI
14th Sep 2025388 AMAQI
14th Sep 2025239 AMAQI
14th Sep 20252410 AMAQI
14th Sep 20255111 AMAQI
14th Sep 20252812 PMAQI
14th Sep 2025331 PMAQI
14th Sep 2025382 PMAQI
14th Sep 2025373 PMAQI
14th Sep 2025434 PMAQI
14th Sep 2025445 PMAQI
14th Sep 2025506 PMAQI
14th Sep 2025507 PMAQI
14th Sep 2025458 PMAQI
14th Sep 2025399 PMAQI
14th Sep 20253710 PMAQI
14th Sep 20253811 PMAQI
15th Sep 20253212 AMAQI
15th Sep 2025381 AMAQI
15th Sep 2025372 AMAQI
15th Sep 2025363 AMAQI
15th Sep 2025344 AMAQI
22°C18/25°C
15th Sep 2025345 AMAQI
15th Sep 2025366 AMAQI
15th Sep 2025357 AMAQI
15th Sep 2025358 AMAQI
15th Sep 2025429 AMAQI
15th Sep 20254610 AMAQI
15th Sep 20254411 AMAQI
15th Sep 20253512 PMAQI
15th Sep 2025341 PMAQI
15th Sep 2025302 PMAQI
15th Sep 2025313 PMAQI
15th Sep 2025314 PMAQI
15th Sep 2025315 PMAQI
15th Sep 2025336 PMAQI
15th Sep 2025307 PMAQI
15th Sep 2025338 PMAQI
15th Sep 2025349 PMAQI
15th Sep 20253910 PMAQI
15th Sep 20253811 PMAQI
16th Sep 20253812 AMAQI
16th Sep 2025341 AMAQI
16th Sep 2025362 AMAQI
16th Sep 2025353 AMAQI
16th Sep 2025364 AMAQI
21°C17/25°C
16th Sep 2025355 AMAQI
16th Sep 2025356 AMAQI
16th Sep 2025377 AMAQI
16th Sep 2025368 AMAQI
16th Sep 2025329 AMAQI
16th Sep 20253510 AMAQI
16th Sep 20253211 AMAQI
16th Sep 20253312 PMAQI
16th Sep 2025311 PMAQI
16th Sep 2025302 PMAQI
16th Sep 2025233 PMAQI
16th Sep 2025264 PMAQI
16th Sep 2025355 PMAQI
16th Sep 2025356 PMAQI
16th Sep 2025427 PMAQI
16th Sep 2025428 PMAQI
16th Sep 2025419 PMAQI
16th Sep 20254010 PMAQI
16th Sep 20253911 PMAQI
17th Sep 20253812 AMAQI
17th Sep 2025361 AMAQI
17th Sep 2025362 AMAQI
17th Sep 2025343 AMAQI
17th Sep 2025344 AMAQI
21°C17/25°C
17th Sep 2025345 AMAQI
17th Sep 2025346 AMAQI
17th Sep 2025347 AMAQI
17th Sep 2025338 AMAQI
17th Sep 2025399 AMAQI
17th Sep 20253310 AMAQI
17th Sep 20254011 AMAQI
17th Sep 20253012 PMAQI
17th Sep 2025361 PMAQI
17th Sep 2025492 PMAQI
17th Sep 2025353 PMAQI
17th Sep 2025344 PMAQI
17th Sep 2025355 PMAQI
17th Sep 2025356 PMAQI
17th Sep 2025347 PMAQI
17th Sep 2025348 PMAQI
17th Sep 2025329 PMAQI
17th Sep 20253410 PMAQI
17th Sep 20253411 PMAQI
18th Sep 20253412 AMAQI
18th Sep 2025371 AMAQI
18th Sep 2025362 AMAQI
18th Sep 2025373 AMAQI
18th Sep 2025384 AMAQI
21°C17/25°C
18th Sep 2025365 AMAQI
18th Sep 2025366 AMAQI
18th Sep 2025357 AMAQI
18th Sep 2025358 AMAQI
18th Sep 2025299 AMAQI
18th Sep 20252910 AMAQI
18th Sep 20252611 AMAQI
18th Sep 20252012 PMAQI
18th Sep 2025221 PMAQI
18th Sep 2025172 PMAQI
18th Sep 2025153 PMAQI
18th Sep 2025154 PMAQI
18th Sep 2025165 PMAQI
18th Sep 2025176 PMAQI
18th Sep 2025167 PMAQI
18th Sep 2025248 PMAQI
18th Sep 2025289 PMAQI
18th Sep 20252910 PMAQI
18th Sep 20252911 PMAQI
19th Sep 20252912 AMAQI
19th Sep 2025321 AMAQI
19th Sep 2025332 AMAQI
19th Sep 2025343 AMAQI
19th Sep 2025344 AMAQI
18°C14/23°C
19th Sep 2025325 AMAQI
19th Sep 2025336 AMAQI
19th Sep 2025327 AMAQI
19th Sep 2025328 AMAQI
19th Sep 2025219 AMAQI
19th Sep 20251910 AMAQI
19th Sep 20252111 AMAQI
19th Sep 20252312 PMAQI
19th Sep 2025181 PMAQI
19th Sep 2025162 PMAQI
19th Sep 2025163 PMAQI
19th Sep 2025184 PMAQI
19th Sep 2025185 PMAQI
19th Sep 2025186 PMAQI
19th Sep 2025217 PMAQI
19th Sep 2025248 PMAQI
19th Sep 2025299 PMAQI
19th Sep 20253010 PMAQI
19th Sep 20252711 PMAQI
20th Sep 20252812 AMAQI
20th Sep 2025301 AMAQI
20th Sep 2025322 AMAQI
20th Sep 2025323 AMAQI
20th Sep 2025314 AMAQI
17°C13/21°C
20th Sep 2025305 AMAQI
20th Sep 2025316 AMAQI
20th Sep 2025317 AMAQI
20th Sep 2025318 AMAQI
20th Sep 2025279 AMAQI
20th Sep 20252710 AMAQI
20th Sep 20252611 AMAQI
20th Sep 20252412 PMAQI
20th Sep 2025301 PMAQI
20th Sep 2025302 PMAQI
20th Sep 2025213 PMAQI
20th Sep 2025234 PMAQI
20th Sep 2025215 PMAQI
20th Sep 2025276 PMAQI
20th Sep 2025317 PMAQI
20th Sep 2025268 PMAQI
20th Sep 2025279 PMAQI
20th Sep 20252610 PMAQI
20th Sep 20252611 PMAQI
21st Sep 20252412 AMAQI
21st Sep 2025281 AMAQI
21st Sep 2025292 AMAQI
21st Sep 2025303 AMAQI
21st Sep 2025344 AMAQI
18°C15/21°C
21st Sep 2025395 AMAQI
21st Sep 2025426 AMAQI
21st Sep 2025427 AMAQI
21st Sep 2025408 AMAQI
21st Sep 2025319 AMAQI
21st Sep 20251810 AMAQI
21st Sep 20252011 AMAQI
21st Sep 20252012 PMAQI
21st Sep 2025221 PMAQI
21st Sep 2025162 PMAQI
21st Sep 2025203 PMAQI
21st Sep 2025164 PMAQI
21st Sep 2025175 PMAQI
21st Sep 2025206 PMAQI
21st Sep 2025247 PMAQI
21st Sep 2025238 PMAQI
21st Sep 2025279 PMAQI
21st Sep 20252610 PMAQI
21st Sep 20252511 PMAQI
22nd Sep 20252612 AMAQI
22nd Sep 2025281 AMAQI
22nd Sep 2025292 AMAQI
22nd Sep 2025283 AMAQI
22nd Sep 2025284 AMAQI
17°C14/21°C
22nd Sep 2025295 AMAQI
22nd Sep 2025286 AMAQI
22nd Sep 2025287 AMAQI
22nd Sep 2025278 AMAQI
22nd Sep 2025439 AMAQI
22nd Sep 20254810 AMAQI
22nd Sep 20253311 AMAQI
22nd Sep 20253112 PMAQI
22nd Sep 2025221 PMAQI
22nd Sep 2025222 PMAQI
22nd Sep 2025233 PMAQI
22nd Sep 2025224 PMAQI
22nd Sep 2025225 PMAQI
22nd Sep 2025206 PMAQI
22nd Sep 2025237 PMAQI
22nd Sep 2025258 PMAQI
22nd Sep 2025289 PMAQI
22nd Sep 20252510 PMAQI
22nd Sep 20252511 PMAQI
23rd Sep 20252612 AMAQI
23rd Sep 2025261 AMAQI
23rd Sep 2025292 AMAQI
23rd Sep 2025313 AMAQI
23rd Sep 2025324 AMAQI
17°C13/21°C
23rd Sep 2025345 AMAQI
23rd Sep 2025366 AMAQI
23rd Sep 2025367 AMAQI
23rd Sep 2025338 AMAQI
23rd Sep 2025269 AMAQI
23rd Sep 20252410 AMAQI
23rd Sep 20252611 AMAQI
23rd Sep 20252512 PMAQI
23rd Sep 2025321 PMAQI
23rd Sep 2025212 PMAQI
23rd Sep 2025203 PMAQI
23rd Sep 2025194 PMAQI
23rd Sep 2025225 PMAQI
23rd Sep 2025226 PMAQI
23rd Sep 2025227 PMAQI
23rd Sep 2025248 PMAQI
23rd Sep 2025239 PMAQI
23rd Sep 20252510 PMAQI
23rd Sep 20252511 PMAQI
24th Sep 20252412 AMAQI
24th Sep 2025261 AMAQI
24th Sep 2025292 AMAQI
24th Sep 2025293 AMAQI
24th Sep 2025294 AMAQI
17°C15/21°C
24th Sep 2025305 AMAQI
24th Sep 2025306 AMAQI
24th Sep 2025307 AMAQI
24th Sep 2025298 AMAQI
24th Sep 2025319 AMAQI
24th Sep 20252910 AMAQI
24th Sep 20252611 AMAQI
24th Sep 20252612 PMAQI
24th Sep 2025231 PMAQI
24th Sep 2025202 PMAQI
24th Sep 2025273 PMAQI
24th Sep 2025324 PMAQI
24th Sep 2025315 PMAQI
24th Sep 2025316 PMAQI
24th Sep 2025357 PMAQI
24th Sep 2025308 PMAQI
24th Sep 2025389 PMAQI
24th Sep 20254310 PMAQI
24th Sep 20254611 PMAQI
25th Sep 20254912 AMAQI
25th Sep 2025501 AMAQI
25th Sep 2025242 AMAQI
25th Sep 2025263 AMAQI
25th Sep 2025274 AMAQI
19°C16/22°C
25th Sep 2025265 AMAQI
25th Sep 2025266 AMAQI
25th Sep 2025257 AMAQI
25th Sep 2025268 AMAQI
25th Sep 2025329 AMAQI
25th Sep 20253010 AMAQI
25th Sep 20252611 AMAQI
25th Sep 20252712 PMAQI
25th Sep 2025281 PMAQI
25th Sep 2025342 PMAQI
25th Sep 2025253 PMAQI
25th Sep 2025304 PMAQI
25th Sep 2025275 PMAQI
25th Sep 2025316 PMAQI
25th Sep 2025267 PMAQI
25th Sep 2025258 PMAQI
25th Sep 2025239 PMAQI
25th Sep 20252410 PMAQI
25th Sep 20252311 PMAQI
26th Sep 20252512 AMAQI
26th Sep 2025261 AMAQI
26th Sep 2025262 AMAQI
26th Sep 2025213 AMAQI
26th Sep 2025194 AMAQI
19°C17/23°C
26th Sep 2025285 AMAQI
26th Sep 2025346 AMAQI
26th Sep 2025397 AMAQI
26th Sep 2025458 AMAQI
26th Sep 2025449 AMAQI
26th Sep 20255010 AMAQI
26th Sep 20254011 AMAQI
26th Sep 20253012 PMAQI
26th Sep 2025301 PMAQI
26th Sep 2025322 PMAQI
26th Sep 2025333 PMAQI
26th Sep 2025344 PMAQI
26th Sep 2025375 PMAQI
26th Sep 2025386 PMAQI
26th Sep 2025347 PMAQI
26th Sep 2025308 PMAQI
26th Sep 2025299 PMAQI
26th Sep 20252810 PMAQI
26th Sep 20252511 PMAQI
27th Sep 20252412 AMAQI
27th Sep 2025211 AMAQI
27th Sep 2025202 AMAQI
27th Sep 2025193 AMAQI
27th Sep 2025184 AMAQI
19°C15/23°C
27th Sep 2025225 AMAQI
27th Sep 2025226 AMAQI
27th Sep 2025197 AMAQI
27th Sep 2025218 AMAQI
27th Sep 2025179 AMAQI
27th Sep 20251910 AMAQI
27th Sep 20252011 AMAQI
27th Sep 20252312 PMAQI
27th Sep 2025201 PMAQI
27th Sep 2025102 PMAQI
27th Sep 2025113 PMAQI
27th Sep 2025154 PMAQI
27th Sep 2025185 PMAQI
27th Sep 2025186 PMAQI
27th Sep 2025177 PMAQI
27th Sep 2025178 PMAQI
27th Sep 2025189 PMAQI
27th Sep 20252010 PMAQI
27th Sep 20251811 PMAQI
28th Sep 20251812 AMAQI
28th Sep 2025151 AMAQI
28th Sep 2025112 AMAQI
28th Sep 2025183 AMAQI
28th Sep 2025254 AMAQI
18°C15/23°C
28th Sep 2025215 AMAQI
28th Sep 2025286 AMAQI
28th Sep 2025247 AMAQI
28th Sep 2025388 AMAQI
28th Sep 2025529 AMAQI
28th Sep 20253110 AMAQI
28th Sep 20251711 AMAQI
28th Sep 20251712 PMAQI
28th Sep 2025181 PMAQI
28th Sep 2025152 PMAQI
28th Sep 2025143 PMAQI
28th Sep 2025184 PMAQI
28th Sep 2025215 PMAQI
28th Sep 2025306 PMAQI
28th Sep 2025487 PMAQI
28th Sep 2025428 PMAQI
28th Sep 2025339 PMAQI
28th Sep 20252510 PMAQI
28th Sep 20252211 PMAQI
29th Sep 20253312 AMAQI
29th Sep 2025321 AMAQI
29th Sep 2025322 AMAQI
29th Sep 2025463 AMAQI
29th Sep 2025444 AMAQI
19°C15/23°C
29th Sep 2025415 AMAQI
29th Sep 2025356 AMAQI
29th Sep 2025407 AMAQI
29th Sep 2025418 AMAQI
29th Sep 2025429 AMAQI
29th Sep 20253410 AMAQI
29th Sep 20254111 AMAQI
29th Sep 20255012 PMAQI
29th Sep 2025501 PMAQI
29th Sep 2025522 PMAQI
29th Sep 2025513 PMAQI
29th Sep 2025464 PMAQI
29th Sep 2025445 PMAQI
29th Sep 2025416 PMAQI
29th Sep 2025397 PMAQI
29th Sep 2025468 PMAQI
29th Sep 2025499 PMAQI
29th Sep 20254010 PMAQI
29th Sep 20253811 PMAQI
30th Sep 20254312 AMAQI
--°C/°C
5 AM
11 AM
5 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
36AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
2 PM - 3 PM
30AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 36), while the lowest AQI was between 2 PM to 3 PM (Avg. 30).
Night time
Avg. Highest Time
12 AM - 4 AM
35AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
6 PM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 35), while the lowest AQI was between 6 PM to 6 PM (Avg. 32).
2025 Days Vs Air Quality
Hakodate, Hokkaido, Japan
2025
96%
261
4%
10
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Good
261 DaysModerate
10 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 96%
Health Risk Level:
Very Low
In 2025, 96% of 272 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
Hakodate, 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
28AQI
28AQI
2nd January 2025
33AQI
33AQI
3rd January 2025
28AQI
28AQI
4th January 2025
26AQI
26AQI
5th January 2025
26AQI
26AQI
6th January 2025
28AQI
28AQI
7th January 2025
36AQI
36AQI
8th January 2025
33AQI
33AQI
9th January 2025
32AQI
32AQI
10th January 2025
31AQI
31AQI
11th January 2025
29AQI
29AQI
12th January 2025
31AQI
31AQI
13th January 2025
28AQI
28AQI
14th January 2025
36AQI
36AQI
15th January 2025
34AQI
34AQI
16th January 2025
26AQI
26AQI
17th January 2025
27AQI
27AQI
18th January 2025
26AQI
26AQI
19th January 2025
27AQI
27AQI
20th January 2025
43AQI
43AQI
21st January 2025
43AQI
43AQI
22nd January 2025
41AQI
41AQI
23rd January 2025
42AQI
42AQI
24th January 2025
40AQI
40AQI
25th January 2025
36AQI
36AQI
26th January 2025
33AQI
33AQI
27th January 2025
57AQI
57AQI
28th January 2025
30AQI
30AQI
29th January 2025
31AQI
31AQI
30th January 2025
29AQI
29AQI
31st January 2025
31AQI
31AQI
1st February 2025
26AQI
26AQI
2nd February 2025
27AQI
27AQI
3rd February 2025
29AQI
29AQI
4th February 2025
28AQI
28AQI
5th February 2025
30AQI
30AQI
6th February 2025
27AQI
27AQI
7th February 2025
28AQI
28AQI
8th February 2025
30AQI
30AQI
9th February 2025
28AQI
28AQI
10th February 2025
27AQI
27AQI
11th February 2025
28AQI
28AQI
12th February 2025
32AQI
32AQI
13th February 2025
41AQI
41AQI
14th February 2025
30AQI
30AQI
15th February 2025
48AQI
48AQI
16th February 2025
36AQI
36AQI
17th February 2025
46AQI
46AQI
18th February 2025
28AQI
28AQI
19th February 2025
31AQI
31AQI
20th February 2025
24AQI
24AQI
21st February 2025
25AQI
25AQI
22nd February 2025
26AQI
26AQI
23rd February 2025
25AQI
25AQI
24th February 2025
25AQI
25AQI
25th February 2025
29AQI
29AQI
26th February 2025
33AQI
33AQI
27th February 2025
35AQI
35AQI
28th February 2025
50AQI
50AQI
1st March 2025
45AQI
45AQI
2nd March 2025
41AQI
41AQI
3rd March 2025
37AQI
37AQI
4th March 2025
33AQI
33AQI
5th March 2025
29AQI
29AQI
6th March 2025
28AQI
28AQI
7th March 2025
30AQI
30AQI
8th March 2025
32AQI
32AQI
9th March 2025
32AQI
32AQI
10th March 2025
38AQI
38AQI
11th March 2025
40AQI
40AQI
12th March 2025
52AQI
52AQI
13th March 2025
47AQI
47AQI
14th March 2025
36AQI
36AQI
15th March 2025
30AQI
30AQI
16th March 2025
23AQI
23AQI
17th March 2025
22AQI
22AQI
18th March 2025
24AQI
24AQI
19th March 2025
25AQI
25AQI
20th March 2025
47AQI
47AQI
21st March 2025
47AQI
47AQI
22nd March 2025
44AQI
44AQI
23rd March 2025
36AQI
36AQI
24th March 2025
35AQI
35AQI
25th March 2025
50AQI
50AQI
26th March 2025
42AQI
42AQI
27th March 2025
42AQI
42AQI
28th March 2025
39AQI
39AQI
29th March 2025
33AQI
33AQI
30th March 2025
31AQI
31AQI
31st March 2025
32AQI
32AQI
1st April 2025
35AQI
35AQI
2nd April 2025
27AQI
27AQI
3rd April 2025
26AQI
26AQI
4th April 2025
24AQI
24AQI
5th April 2025
32AQI
32AQI
6th April 2025
33AQI
33AQI
7th April 2025
27AQI
27AQI
8th April 2025
31AQI
31AQI
9th April 2025
32AQI
32AQI
10th April 2025
45AQI
45AQI
11th April 2025
47AQI
47AQI
12th April 2025
46AQI
46AQI
13th April 2025
33AQI
33AQI
14th April 2025
25AQI
25AQI
15th April 2025
28AQI
28AQI
16th April 2025
22AQI
22AQI
17th April 2025
33AQI
33AQI
18th April 2025
35AQI
35AQI
19th April 2025
39AQI
39AQI
20th April 2025
25AQI
25AQI
21st April 2025
31AQI
31AQI
22nd April 2025
27AQI
27AQI
23rd April 2025
26AQI
26AQI
24th April 2025
27AQI
27AQI
25th April 2025
18AQI
18AQI
26th April 2025
42AQI
42AQI
27th April 2025
27AQI
27AQI
28th April 2025
34AQI
34AQI
29th April 2025
18AQI
18AQI
30th April 2025
22AQI
22AQI
1st May 2025
23AQI
23AQI
2nd May 2025
32AQI
32AQI
3rd May 2025
37AQI
37AQI
4th May 2025
34AQI
34AQI
5th May 2025
33AQI
33AQI
6th May 2025
33AQI
33AQI
7th May 2025
30AQI
30AQI
8th May 2025
37AQI
37AQI
9th May 2025
40AQI
40AQI
10th May 2025
31AQI
31AQI
11th May 2025
31AQI
31AQI
12th May 2025
31AQI
31AQI
13th May 2025
37AQI
37AQI
14th May 2025
48AQI
48AQI
15th May 2025
47AQI
47AQI
16th May 2025
55AQI
55AQI
17th May 2025
45AQI
45AQI
18th May 2025
36AQI
36AQI
19th May 2025
49AQI
49AQI
20th May 2025
47AQI
47AQI
21st May 2025
47AQI
47AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
36AQI
36AQI
24th May 2025
38AQI
38AQI
25th May 2025
24AQI
24AQI
26th May 2025
28AQI
28AQI
27th May 2025
30AQI
30AQI
28th May 2025
36AQI
36AQI
29th May 2025
37AQI
37AQI
30th May 2025
39AQI
39AQI
31st May 2025
37AQI
37AQI
1st June 2025
32AQI
32AQI
2nd June 2025
39AQI
39AQI
3rd June 2025
38AQI
38AQI
4th June 2025
30AQI
30AQI
5th June 2025
28AQI
28AQI
6th June 2025
33AQI
33AQI
7th June 2025
44AQI
44AQI
8th June 2025
43AQI
43AQI
9th June 2025
47AQI
47AQI
10th June 2025
54AQI
54AQI
11th June 2025
44AQI
44AQI
12th June 2025
38AQI
38AQI
13th June 2025
39AQI
39AQI
14th June 2025
44AQI
44AQI
15th June 2025
36AQI
36AQI
16th June 2025
33AQI
33AQI
17th June 2025
34AQI
34AQI
18th June 2025
40AQI
40AQI
19th June 2025
43AQI
43AQI
20th June 2025
46AQI
46AQI
21st June 2025
46AQI
46AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
45AQI
45AQI
24th June 2025
43AQI
43AQI
25th June 2025
46AQI
46AQI
26th June 2025
43AQI
43AQI
27th June 2025
36AQI
36AQI
28th June 2025
38AQI
38AQI
29th June 2025
41AQI
41AQI
30th June 2025
43AQI
43AQI
1st July 2025
46AQI
46AQI
2nd July 2025
49AQI
49AQI
3rd July 2025
50AQI
50AQI
4th July 2025
53AQI
53AQI
5th July 2025
50AQI
50AQI
6th July 2025
52AQI
52AQI
7th July 2025
52AQI
52AQI
8th July 2025
52AQI
52AQI
9th July 2025
54AQI
54AQI
10th July 2025
48AQI
48AQI
11th July 2025
45AQI
45AQI
12th July 2025
46AQI
46AQI
13th July 2025
49AQI
49AQI
14th July 2025
44AQI
44AQI
15th July 2025
42AQI
42AQI
16th July 2025
41AQI
41AQI
17th July 2025
45AQI
45AQI
18th July 2025
45AQI
45AQI
19th July 2025
45AQI
45AQI
20th July 2025
40AQI
40AQI
21st July 2025
44AQI
44AQI
22nd July 2025
42AQI
42AQI
23rd July 2025
38AQI
38AQI
24th July 2025
40AQI
40AQI
25th July 2025
41AQI
41AQI
26th July 2025
43AQI
43AQI
27th July 2025
41AQI
41AQI
28th July 2025
39AQI
39AQI
29th July 2025
42AQI
42AQI
30th July 2025
40AQI
40AQI
31st July 2025
41AQI
41AQI
1st August 2025
40AQI
40AQI
2nd August 2025
35AQI
35AQI
3rd August 2025
38AQI
38AQI
4th August 2025
38AQI
38AQI
5th August 2025
42AQI
42AQI
6th August 2025
36AQI
36AQI
7th August 2025
33AQI
33AQI
8th August 2025
31AQI
31AQI
9th August 2025
29AQI
29AQI
10th August 2025
34AQI
34AQI
11th August 2025
36AQI
36AQI
12th August 2025
32AQI
32AQI
13th August 2025
34AQI
34AQI
14th August 2025
37AQI
37AQI
15th August 2025
34AQI
34AQI
16th August 2025
34AQI
34AQI
17th August 2025
36AQI
36AQI
18th August 2025
37AQI
37AQI
19th August 2025
42AQI
42AQI
20th August 2025
42AQI
42AQI
21st August 2025
42AQI
42AQI
22nd August 2025
40AQI
40AQI
23rd August 2025
48AQI
48AQI
24th August 2025
42AQI
42AQI
25th August 2025
39AQI
39AQI
26th August 2025
44AQI
44AQI
27th August 2025
38AQI
38AQI
28th August 2025
32AQI
32AQI
29th August 2025
38AQI
38AQI
30th August 2025
46AQI
46AQI
31st August 2025
41AQI
41AQI
1st September 2025
44AQI
44AQI
2nd September 2025
37AQI
37AQI
3rd September 2025
37AQI
37AQI
4th September 2025
35AQI
35AQI
5th September 2025
35AQI
35AQI
6th September 2025
37AQI
37AQI
7th September 2025
34AQI
34AQI
8th September 2025
36AQI
36AQI
9th September 2025
41AQI
41AQI
10th September 2025
35AQI
35AQI
11th September 2025
37AQI
37AQI
12th September 2025
37AQI
37AQI
13th September 2025
33AQI
33AQI
14th September 2025
38AQI
38AQI
15th September 2025
35AQI
35AQI
16th September 2025
35AQI
35AQI
17th September 2025
35AQI
35AQI
18th September 2025
28AQI
28AQI
19th September 2025
26AQI
26AQI
20th September 2025
28AQI
28AQI
21st September 2025
27AQI
27AQI
22nd September 2025
27AQI
27AQI
23rd September 2025
27AQI
27AQI
24th September 2025
31AQI
31AQI
25th September 2025
28AQI
28AQI
26th September 2025
31AQI
31AQI
27th September 2025
19AQI
19AQI
28th September 2025
24AQI
24AQI
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
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
33AQI
31AQI
36AQI
31AQI
37AQI
41AQI
45AQI
38AQI
33AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202536AQI
30
1
28
30
1
30
30
1
28
2
26
5
31
28
261
10
Highest AQI recorded in
July45AQI
Lowest AQI recorded in
April31AQI
202434AQI
15
1
1
3
2
11
1
28
2
22
9
31
29
31
30
31
234
13
Highest AQI recorded in
July46AQI
Lowest AQI recorded in
December25AQI
202325AQI
3
31
34
Highest AQI recorded in
December25AQI
Lowest AQI recorded in
November24AQI
202027AQI
12
1
20
1
18
30
31
29
2
7
2
147
6
Highest AQI recorded in
March33AQI
Lowest AQI recorded in
June23AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2025(Avg.)
36AQILeast Polluted Year Recorded
2023(Avg.)
25AQIHakodate's annual 2025 AQI (36) shows an average percentage change of 28.8% (worsened AQI) compared to previous years: 2020 (27), 2023 (25), 2024 (34).
