Shiroishi, Miyagi, 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
Shiroishi, Miyagi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Sep 2022
50AQILowest AQI recorded on
22nd Sep 2024
10AQISame Day Analysis (20th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 31 of Good air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 20th Sep - 21st Sep 2025
Shiroishi, Miyagi, Japan
AQI
Day
Night
.
5 AM20th Sep 2025
6 PM
4 AM21st Sep 2025
Day time
Avg. Highest Time
5AM20th Sep
32AQI
Avg. Lowest Time
3PM20th Sep
24AQI
Night time
Avg. Highest Time
6PM20th Sep
30AQI
Avg. Lowest Time
11PM20th Sep
27AQI
In the last 24 hours,
Shiroishi's AQI reached its highest point of 32 at 5 AM during the Day, while the lowest point, 24, was recorded at 3 PM during the Day between 20th Sep and 21st Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Shiroishi, Miyagi, Japan
AugSep
22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st
Day
Night
22nd Aug 2025475 AMAQI
22nd Aug 2025456 AMAQI
22nd Aug 2025467 AMAQI
22nd Aug 2025468 AMAQI
22nd Aug 2025429 AMAQI
22nd Aug 20254110 AMAQI
22nd Aug 20253811 AMAQI
22nd Aug 20254312 PMAQI
22nd Aug 2025431 PMAQI
22nd Aug 2025392 PMAQI
22nd Aug 2025503 PMAQI
22nd Aug 2025464 PMAQI
22nd Aug 2025485 PMAQI
22nd Aug 2025526 PMAQI
22nd Aug 2025547 PMAQI
22nd Aug 2025498 PMAQI
22nd Aug 2025449 PMAQI
22nd Aug 20254110 PMAQI
22nd Aug 20254111 PMAQI
23rd Aug 20254312 AMAQI
23rd Aug 2025491 AMAQI
23rd Aug 2025482 AMAQI
23rd Aug 2025493 AMAQI
23rd Aug 2025504 AMAQI
25°C22/30°C
23rd Aug 2025515 AMAQI
23rd Aug 2025476 AMAQI
23rd Aug 2025487 AMAQI
23rd Aug 2025488 AMAQI
23rd Aug 2025389 AMAQI
23rd Aug 20255410 AMAQI
23rd Aug 20254611 AMAQI
23rd Aug 20254312 PMAQI
23rd Aug 2025491 PMAQI
23rd Aug 2025462 PMAQI
23rd Aug 2025443 PMAQI
23rd Aug 2025484 PMAQI
23rd Aug 2025465 PMAQI
23rd Aug 2025486 PMAQI
23rd Aug 2025547 PMAQI
23rd Aug 2025448 PMAQI
23rd Aug 2025499 PMAQI
23rd Aug 20254610 PMAQI
23rd Aug 20254911 PMAQI
24th Aug 20254812 AMAQI
24th Aug 2025461 AMAQI
24th Aug 2025472 AMAQI
24th Aug 2025473 AMAQI
24th Aug 2025474 AMAQI
28°C22/36°C
24th Aug 2025465 AMAQI
24th Aug 2025466 AMAQI
24th Aug 2025467 AMAQI
24th Aug 2025468 AMAQI
24th Aug 2025429 AMAQI
24th Aug 20254910 AMAQI
24th Aug 20254211 AMAQI
24th Aug 20254412 PMAQI
24th Aug 2025521 PMAQI
24th Aug 2025502 PMAQI
24th Aug 2025543 PMAQI
24th Aug 2025544 PMAQI
24th Aug 2025585 PMAQI
24th Aug 2025566 PMAQI
24th Aug 2025587 PMAQI
24th Aug 2025548 PMAQI
24th Aug 2025429 PMAQI
24th Aug 20254410 PMAQI
24th Aug 20254111 PMAQI
25th Aug 20253812 AMAQI
25th Aug 2025431 AMAQI
25th Aug 2025452 AMAQI
25th Aug 2025463 AMAQI
25th Aug 2025494 AMAQI
28°C24/34°C
25th Aug 2025495 AMAQI
25th Aug 2025506 AMAQI
25th Aug 2025497 AMAQI
25th Aug 2025508 AMAQI
25th Aug 2025489 AMAQI
25th Aug 20255010 AMAQI
25th Aug 20255511 AMAQI
25th Aug 20254812 PMAQI
25th Aug 2025541 PMAQI
25th Aug 2025472 PMAQI
25th Aug 2025573 PMAQI
25th Aug 2025514 PMAQI
25th Aug 2025445 PMAQI
25th Aug 2025456 PMAQI
25th Aug 2025407 PMAQI
25th Aug 2025478 PMAQI
25th Aug 2025399 PMAQI
25th Aug 20253710 PMAQI
25th Aug 20253811 PMAQI
26th Aug 20253712 AMAQI
26th Aug 2025501 AMAQI
26th Aug 2025492 AMAQI
26th Aug 2025483 AMAQI
26th Aug 2025494 AMAQI
25°C24/28°C
26th Aug 2025505 AMAQI
26th Aug 2025496 AMAQI
26th Aug 2025517 AMAQI
26th Aug 2025498 AMAQI
26th Aug 2025389 AMAQI
26th Aug 20254610 AMAQI
26th Aug 20255911 AMAQI
26th Aug 20256112 PMAQI
26th Aug 2025601 PMAQI
26th Aug 2025532 PMAQI
26th Aug 2025573 PMAQI
26th Aug 2025544 PMAQI
26th Aug 2025575 PMAQI
26th Aug 2025596 PMAQI
26th Aug 2025607 PMAQI
26th Aug 2025568 PMAQI
26th Aug 2025529 PMAQI
26th Aug 20254910 PMAQI
26th Aug 20254811 PMAQI
27th Aug 20255312 AMAQI
27th Aug 2025501 AMAQI
27th Aug 2025482 AMAQI
27th Aug 2025503 AMAQI
27th Aug 2025514 AMAQI
27°C23/33°C
27th Aug 2025525 AMAQI
27th Aug 2025526 AMAQI
27th Aug 2025527 AMAQI
27th Aug 2025528 AMAQI
27th Aug 2025369 AMAQI
27th Aug 20253610 AMAQI
27th Aug 20254011 AMAQI
27th Aug 20254212 PMAQI
27th Aug 2025281 PMAQI
27th Aug 2025282 PMAQI
27th Aug 2025273 PMAQI
27th Aug 2025394 PMAQI
27th Aug 2025305 PMAQI
27th Aug 2025306 PMAQI
27th Aug 2025257 PMAQI
27th Aug 2025368 PMAQI
27th Aug 2025379 PMAQI
27th Aug 20253810 PMAQI
27th Aug 20253511 PMAQI
28th Aug 20253712 AMAQI
28th Aug 2025461 AMAQI
28th Aug 2025522 AMAQI
28th Aug 2025503 AMAQI
28th Aug 2025504 AMAQI
27°C22/33°C
28th Aug 2025485 AMAQI
28th Aug 2025486 AMAQI
28th Aug 2025497 AMAQI
28th Aug 2025508 AMAQI
28th Aug 2025289 AMAQI
28th Aug 20253210 AMAQI
28th Aug 20253811 AMAQI
28th Aug 20253612 PMAQI
28th Aug 2025341 PMAQI
28th Aug 2025322 PMAQI
28th Aug 2025273 PMAQI
28th Aug 2025244 PMAQI
28th Aug 2025275 PMAQI
28th Aug 2025376 PMAQI
28th Aug 2025307 PMAQI
28th Aug 2025388 PMAQI
28th Aug 2025359 PMAQI
28th Aug 20253410 PMAQI
28th Aug 20253411 PMAQI
29th Aug 20253212 AMAQI
29th Aug 2025431 AMAQI
29th Aug 2025472 AMAQI
29th Aug 2025493 AMAQI
29th Aug 2025454 AMAQI
24°C20/29°C
29th Aug 2025455 AMAQI
29th Aug 2025446 AMAQI
29th Aug 2025427 AMAQI
29th Aug 2025458 AMAQI
29th Aug 2025279 AMAQI
29th Aug 20253410 AMAQI
29th Aug 20253211 AMAQI
29th Aug 20253312 PMAQI
29th Aug 2025421 PMAQI
29th Aug 2025442 PMAQI
29th Aug 2025423 PMAQI
29th Aug 2025404 PMAQI
29th Aug 2025425 PMAQI
29th Aug 2025476 PMAQI
29th Aug 2025437 PMAQI
29th Aug 2025408 PMAQI
29th Aug 2025449 PMAQI
29th Aug 20254110 PMAQI
29th Aug 20254111 PMAQI
30th Aug 20253712 AMAQI
30th Aug 2025441 AMAQI
30th Aug 2025472 AMAQI
30th Aug 2025463 AMAQI
30th Aug 2025434 AMAQI
25°C20/30°C
30th Aug 2025465 AMAQI
30th Aug 2025446 AMAQI
30th Aug 2025457 AMAQI
30th Aug 2025458 AMAQI
30th Aug 2025369 AMAQI
30th Aug 20255010 AMAQI
30th Aug 20255011 AMAQI
30th Aug 20253912 PMAQI
30th Aug 2025491 PMAQI
30th Aug 2025512 PMAQI
30th Aug 2025483 PMAQI
30th Aug 2025454 PMAQI
30th Aug 2025465 PMAQI
30th Aug 2025506 PMAQI
30th Aug 2025507 PMAQI
30th Aug 2025498 PMAQI
30th Aug 2025429 PMAQI
30th Aug 20254010 PMAQI
30th Aug 20253411 PMAQI
31st Aug 20253612 AMAQI
31st Aug 2025491 AMAQI
31st Aug 2025472 AMAQI
31st Aug 2025483 AMAQI
31st Aug 2025454 AMAQI
27°C22/33°C
31st Aug 2025435 AMAQI
31st Aug 2025446 AMAQI
31st Aug 2025447 AMAQI
31st Aug 2025448 AMAQI
31st Aug 2025349 AMAQI
31st Aug 20254510 AMAQI
31st Aug 20254811 AMAQI
31st Aug 20255012 PMAQI
31st Aug 2025511 PMAQI
31st Aug 2025462 PMAQI
31st Aug 2025483 PMAQI
31st Aug 2025504 PMAQI
31st Aug 2025445 PMAQI
31st Aug 2025506 PMAQI
31st Aug 2025427 PMAQI
31st Aug 2025458 PMAQI
31st Aug 2025409 PMAQI
31st Aug 20254110 PMAQI
31st Aug 20254611 PMAQI
1st Sep 20253812 AMAQI
1st Sep 2025441 AMAQI
1st Sep 2025472 AMAQI
1st Sep 2025463 AMAQI
1st Sep 2025464 AMAQI
25°C23/28°C
1st Sep 2025445 AMAQI
1st Sep 2025466 AMAQI
1st Sep 2025467 AMAQI
1st Sep 2025478 AMAQI
1st Sep 2025349 AMAQI
1st Sep 20253710 AMAQI
1st Sep 20254211 AMAQI
1st Sep 20254412 PMAQI
1st Sep 2025461 PMAQI
1st Sep 2025392 PMAQI
1st Sep 2025473 PMAQI
1st Sep 2025424 PMAQI
1st Sep 2025415 PMAQI
1st Sep 2025376 PMAQI
1st Sep 2025417 PMAQI
1st Sep 2025388 PMAQI
1st Sep 2025409 PMAQI
1st Sep 20254510 PMAQI
1st Sep 20254311 PMAQI
2nd Sep 20254412 AMAQI
2nd Sep 2025461 AMAQI
2nd Sep 2025462 AMAQI
2nd Sep 2025473 AMAQI
2nd Sep 2025444 AMAQI
27°C23/33°C
2nd Sep 2025445 AMAQI
2nd Sep 2025446 AMAQI
2nd Sep 2025447 AMAQI
2nd Sep 2025438 AMAQI
2nd Sep 2025229 AMAQI
2nd Sep 20252410 AMAQI
2nd Sep 20253611 AMAQI
2nd Sep 20252812 PMAQI
2nd Sep 2025391 PMAQI
2nd Sep 2025302 PMAQI
2nd Sep 2025243 PMAQI
2nd Sep 2025314 PMAQI
2nd Sep 2025285 PMAQI
2nd Sep 2025306 PMAQI
2nd Sep 2025287 PMAQI
2nd Sep 2025288 PMAQI
2nd Sep 2025349 PMAQI
2nd Sep 20253610 PMAQI
2nd Sep 20253511 PMAQI
3rd Sep 20253612 AMAQI
3rd Sep 2025421 AMAQI
3rd Sep 2025462 AMAQI
3rd Sep 2025473 AMAQI
3rd Sep 2025444 AMAQI
29°C24/36°C
3rd Sep 2025425 AMAQI
3rd Sep 2025446 AMAQI
3rd Sep 2025447 AMAQI
3rd Sep 2025428 AMAQI
3rd Sep 2025279 AMAQI
3rd Sep 20252610 AMAQI
3rd Sep 20252211 AMAQI
3rd Sep 20252212 PMAQI
3rd Sep 2025241 PMAQI
3rd Sep 2025232 PMAQI
3rd Sep 2025263 PMAQI
3rd Sep 2025294 PMAQI
3rd Sep 2025265 PMAQI
3rd Sep 2025296 PMAQI
3rd Sep 2025287 PMAQI
3rd Sep 2025318 PMAQI
3rd Sep 2025329 PMAQI
3rd Sep 20253310 PMAQI
3rd Sep 20252911 PMAQI
4th Sep 20253212 AMAQI
4th Sep 2025421 AMAQI
4th Sep 2025442 AMAQI
4th Sep 2025433 AMAQI
4th Sep 2025424 AMAQI
26°C22/33°C
4th Sep 2025415 AMAQI
4th Sep 2025426 AMAQI
4th Sep 2025407 AMAQI
4th Sep 2025408 AMAQI
4th Sep 2025249 AMAQI
4th Sep 20252410 AMAQI
4th Sep 20251811 AMAQI
4th Sep 20252412 PMAQI
4th Sep 2025221 PMAQI
4th Sep 2025242 PMAQI
4th Sep 2025323 PMAQI
4th Sep 2025284 PMAQI
4th Sep 2025325 PMAQI
4th Sep 2025336 PMAQI
4th Sep 2025297 PMAQI
4th Sep 2025288 PMAQI
4th Sep 2025359 PMAQI
4th Sep 20253310 PMAQI
4th Sep 20253311 PMAQI
5th Sep 20253912 AMAQI
5th Sep 2025391 AMAQI
5th Sep 2025402 AMAQI
5th Sep 2025393 AMAQI
5th Sep 2025384 AMAQI
24°C21/28°C
5th Sep 2025365 AMAQI
5th Sep 2025376 AMAQI
5th Sep 2025367 AMAQI
5th Sep 2025368 AMAQI
5th Sep 2025209 AMAQI
5th Sep 20252010 AMAQI
5th Sep 20251811 AMAQI
5th Sep 20252012 PMAQI
5th Sep 2025201 PMAQI
5th Sep 2025212 PMAQI
5th Sep 2025223 PMAQI
5th Sep 2025254 PMAQI
5th Sep 2025225 PMAQI
5th Sep 2025266 PMAQI
5th Sep 2025287 PMAQI
5th Sep 2025298 PMAQI
5th Sep 2025289 PMAQI
5th Sep 20252410 PMAQI
5th Sep 20252811 PMAQI
6th Sep 20252812 AMAQI
6th Sep 2025261 AMAQI
6th Sep 2025302 AMAQI
6th Sep 2025323 AMAQI
6th Sep 2025294 AMAQI
23°C20/25°C
6th Sep 2025305 AMAQI
6th Sep 2025306 AMAQI
6th Sep 2025287 AMAQI
6th Sep 2025288 AMAQI
6th Sep 2025279 AMAQI
6th Sep 20251610 AMAQI
6th Sep 20252311 AMAQI
6th Sep 20252612 PMAQI
6th Sep 2025251 PMAQI
6th Sep 2025252 PMAQI
6th Sep 2025273 PMAQI
6th Sep 2025274 PMAQI
6th Sep 2025305 PMAQI
6th Sep 2025286 PMAQI
6th Sep 2025287 PMAQI
6th Sep 2025298 PMAQI
6th Sep 2025299 PMAQI
6th Sep 20252610 PMAQI
6th Sep 20252811 PMAQI
7th Sep 20252612 AMAQI
7th Sep 2025271 AMAQI
7th Sep 2025302 AMAQI
7th Sep 2025283 AMAQI
7th Sep 2025284 AMAQI
24°C20/29°C
7th Sep 2025285 AMAQI
7th Sep 2025276 AMAQI
7th Sep 2025287 AMAQI
7th Sep 2025288 AMAQI
7th Sep 2025269 AMAQI
7th Sep 20252410 AMAQI
7th Sep 20253411 AMAQI
7th Sep 20253012 PMAQI
7th Sep 2025341 PMAQI
7th Sep 2025282 PMAQI
7th Sep 2025373 PMAQI
7th Sep 2025354 PMAQI
7th Sep 2025345 PMAQI
7th Sep 2025336 PMAQI
7th Sep 2025317 PMAQI
7th Sep 2025298 PMAQI
7th Sep 2025299 PMAQI
7th Sep 20252910 PMAQI
7th Sep 20252711 PMAQI
8th Sep 20252812 AMAQI
8th Sep 2025271 AMAQI
8th Sep 2025282 AMAQI
8th Sep 2025283 AMAQI
8th Sep 2025284 AMAQI
25°C19/33°C
8th Sep 2025285 AMAQI
8th Sep 2025286 AMAQI
8th Sep 2025287 AMAQI
8th Sep 2025288 AMAQI
8th Sep 2025339 AMAQI
8th Sep 20252810 AMAQI
8th Sep 20252911 AMAQI
8th Sep 20252512 PMAQI
8th Sep 2025261 PMAQI
8th Sep 2025372 PMAQI
8th Sep 2025433 PMAQI
8th Sep 2025454 PMAQI
8th Sep 2025405 PMAQI
8th Sep 2025386 PMAQI
8th Sep 2025397 PMAQI
8th Sep 2025308 PMAQI
8th Sep 2025319 PMAQI
8th Sep 20252810 PMAQI
8th Sep 20253111 PMAQI
9th Sep 20252812 AMAQI
9th Sep 2025311 AMAQI
9th Sep 2025302 AMAQI
9th Sep 2025303 AMAQI
9th Sep 2025294 AMAQI
24°C22/26°C
9th Sep 2025305 AMAQI
9th Sep 2025306 AMAQI
9th Sep 2025307 AMAQI
9th Sep 2025308 AMAQI
9th Sep 2025369 AMAQI
9th Sep 20253310 AMAQI
9th Sep 20253611 AMAQI
9th Sep 20255112 PMAQI
9th Sep 2025471 PMAQI
9th Sep 2025472 PMAQI
9th Sep 2025363 PMAQI
9th Sep 2025484 PMAQI
9th Sep 2025405 PMAQI
9th Sep 2025456 PMAQI
9th Sep 2025487 PMAQI
9th Sep 2025408 PMAQI
9th Sep 2025329 PMAQI
9th Sep 20253210 PMAQI
9th Sep 20253711 PMAQI
10th Sep 20253312 AMAQI
10th Sep 2025301 AMAQI
10th Sep 2025302 AMAQI
10th Sep 2025313 AMAQI
10th Sep 2025324 AMAQI
24°C23/28°C
10th Sep 2025335 AMAQI
10th Sep 2025326 AMAQI
10th Sep 2025327 AMAQI
10th Sep 2025338 AMAQI
10th Sep 2025339 AMAQI
10th Sep 20253210 AMAQI
10th Sep 20252811 AMAQI
10th Sep 20253112 PMAQI
10th Sep 2025281 PMAQI
10th Sep 2025312 PMAQI
10th Sep 2025403 PMAQI
10th Sep 2025324 PMAQI
10th Sep 2025275 PMAQI
10th Sep 2025316 PMAQI
10th Sep 2025297 PMAQI
10th Sep 2025358 PMAQI
10th Sep 2025329 PMAQI
10th Sep 20253110 PMAQI
10th Sep 20253111 PMAQI
11th Sep 20253012 AMAQI
11th Sep 2025341 AMAQI
11th Sep 2025342 AMAQI
11th Sep 2025343 AMAQI
11th Sep 2025334 AMAQI
23°C21/27°C
11th Sep 2025345 AMAQI
11th Sep 2025326 AMAQI
11th Sep 2025327 AMAQI
11th Sep 2025338 AMAQI
11th Sep 2025209 AMAQI
11th Sep 20253010 AMAQI
11th Sep 20252411 AMAQI
11th Sep 20252412 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025332 PMAQI
11th Sep 2025383 PMAQI
11th Sep 2025294 PMAQI
11th Sep 2025345 PMAQI
11th Sep 2025456 PMAQI
11th Sep 2025377 PMAQI
11th Sep 2025428 PMAQI
11th Sep 2025329 PMAQI
11th Sep 20253310 PMAQI
11th Sep 20253011 PMAQI
12th Sep 20253212 AMAQI
12th Sep 2025341 AMAQI
12th Sep 2025342 AMAQI
12th Sep 2025333 AMAQI
12th Sep 2025334 AMAQI
21°C20/23°C
12th Sep 2025325 AMAQI
12th Sep 2025326 AMAQI
12th Sep 2025327 AMAQI
12th Sep 2025318 AMAQI
12th Sep 2025249 AMAQI
12th Sep 20252610 AMAQI
12th Sep 20252811 AMAQI
12th Sep 20252812 PMAQI
12th Sep 2025361 PMAQI
12th Sep 2025412 PMAQI
12th Sep 2025403 PMAQI
12th Sep 2025344 PMAQI
12th Sep 2025305 PMAQI
12th Sep 2025386 PMAQI
12th Sep 2025367 PMAQI
12th Sep 2025348 PMAQI
12th Sep 2025339 PMAQI
12th Sep 20253110 PMAQI
12th Sep 20253211 PMAQI
13th Sep 20253312 AMAQI
13th Sep 2025371 AMAQI
13th Sep 2025342 AMAQI
13th Sep 2025353 AMAQI
13th Sep 2025344 AMAQI
21°C20/23°C
13th Sep 2025365 AMAQI
13th Sep 2025346 AMAQI
13th Sep 2025357 AMAQI
13th Sep 2025348 AMAQI
13th Sep 2025209 AMAQI
13th Sep 20251810 AMAQI
13th Sep 20252411 AMAQI
13th Sep 20252712 PMAQI
13th Sep 2025231 PMAQI
13th Sep 2025222 PMAQI
13th Sep 2025223 PMAQI
13th Sep 2025214 PMAQI
13th Sep 2025225 PMAQI
13th Sep 2025206 PMAQI
13th Sep 2025227 PMAQI
13th Sep 2025248 PMAQI
13th Sep 2025289 PMAQI
13th Sep 20252610 PMAQI
13th Sep 20252811 PMAQI
14th Sep 20253012 AMAQI
14th Sep 2025371 AMAQI
14th Sep 2025362 AMAQI
14th Sep 2025363 AMAQI
14th Sep 2025344 AMAQI
22°C21/23°C
14th Sep 2025345 AMAQI
14th Sep 2025336 AMAQI
14th Sep 2025347 AMAQI
14th Sep 2025368 AMAQI
14th Sep 2025249 AMAQI
14th Sep 20251910 AMAQI
14th Sep 20251911 AMAQI
14th Sep 20252212 PMAQI
14th Sep 2025221 PMAQI
14th Sep 2025212 PMAQI
14th Sep 2025213 PMAQI
14th Sep 2025264 PMAQI
14th Sep 2025225 PMAQI
14th Sep 2025326 PMAQI
14th Sep 2025357 PMAQI
14th Sep 2025358 PMAQI
14th Sep 2025389 PMAQI
14th Sep 20253610 PMAQI
14th Sep 20253411 PMAQI
15th Sep 20253312 AMAQI
15th Sep 2025351 AMAQI
15th Sep 2025352 AMAQI
15th Sep 2025363 AMAQI
15th Sep 2025334 AMAQI
24°C21/30°C
15th Sep 2025325 AMAQI
15th Sep 2025336 AMAQI
15th Sep 2025347 AMAQI
15th Sep 2025348 AMAQI
15th Sep 2025269 AMAQI
15th Sep 20252810 AMAQI
15th Sep 20252411 AMAQI
15th Sep 20253012 PMAQI
15th Sep 2025331 PMAQI
15th Sep 2025312 PMAQI
15th Sep 2025313 PMAQI
15th Sep 2025324 PMAQI
15th Sep 2025315 PMAQI
15th Sep 2025296 PMAQI
15th Sep 2025317 PMAQI
15th Sep 2025348 PMAQI
15th Sep 2025329 PMAQI
15th Sep 20253210 PMAQI
15th Sep 20253211 PMAQI
16th Sep 20253112 AMAQI
16th Sep 2025341 AMAQI
16th Sep 2025342 AMAQI
16th Sep 2025343 AMAQI
16th Sep 2025334 AMAQI
23°C21/27°C
16th Sep 2025345 AMAQI
16th Sep 2025336 AMAQI
16th Sep 2025327 AMAQI
16th Sep 2025348 AMAQI
16th Sep 2025339 AMAQI
16th Sep 20253310 AMAQI
16th Sep 20252711 AMAQI
16th Sep 20252812 PMAQI
16th Sep 2025291 PMAQI
16th Sep 2025312 PMAQI
16th Sep 2025293 PMAQI
16th Sep 2025284 PMAQI
16th Sep 2025365 PMAQI
16th Sep 2025306 PMAQI
16th Sep 2025357 PMAQI
16th Sep 2025338 PMAQI
16th Sep 2025339 PMAQI
16th Sep 20253310 PMAQI
16th Sep 20253511 PMAQI
17th Sep 20253412 AMAQI
17th Sep 2025331 AMAQI
17th Sep 2025332 AMAQI
17th Sep 2025323 AMAQI
17th Sep 2025334 AMAQI
25°C20/32°C
17th Sep 2025325 AMAQI
17th Sep 2025336 AMAQI
17th Sep 2025327 AMAQI
17th Sep 2025328 AMAQI
17th Sep 2025409 AMAQI
17th Sep 20254210 AMAQI
17th Sep 20254411 AMAQI
17th Sep 20253612 PMAQI
17th Sep 2025381 PMAQI
17th Sep 2025512 PMAQI
17th Sep 2025463 PMAQI
17th Sep 2025414 PMAQI
17th Sep 2025465 PMAQI
17th Sep 2025386 PMAQI
17th Sep 2025347 PMAQI
17th Sep 2025378 PMAQI
17th Sep 2025379 PMAQI
17th Sep 20253410 PMAQI
17th Sep 20253311 PMAQI
18th Sep 20253212 AMAQI
18th Sep 2025311 AMAQI
18th Sep 2025332 AMAQI
18th Sep 2025343 AMAQI
18th Sep 2025344 AMAQI
26°C22/32°C
18th Sep 2025335 AMAQI
18th Sep 2025346 AMAQI
18th Sep 2025347 AMAQI
18th Sep 2025358 AMAQI
18th Sep 2025319 AMAQI
18th Sep 20253310 AMAQI
18th Sep 20252811 AMAQI
18th Sep 20252312 PMAQI
18th Sep 2025241 PMAQI
18th Sep 2025212 PMAQI
18th Sep 2025193 PMAQI
18th Sep 2025204 PMAQI
18th Sep 2025205 PMAQI
18th Sep 2025226 PMAQI
18th Sep 2025227 PMAQI
18th Sep 2025258 PMAQI
18th Sep 2025309 PMAQI
18th Sep 20253010 PMAQI
18th Sep 20253011 PMAQI
19th Sep 20253112 AMAQI
19th Sep 2025321 AMAQI
19th Sep 2025342 AMAQI
19th Sep 2025333 AMAQI
19th Sep 2025334 AMAQI
22°C19/26°C
19th Sep 2025335 AMAQI
19th Sep 2025336 AMAQI
19th Sep 2025327 AMAQI
19th Sep 2025328 AMAQI
19th Sep 2025249 AMAQI
19th Sep 20251810 AMAQI
19th Sep 20252111 AMAQI
19th Sep 20252112 PMAQI
19th Sep 2025251 PMAQI
19th Sep 2025242 PMAQI
19th Sep 2025223 PMAQI
19th Sep 2025254 PMAQI
19th Sep 2025255 PMAQI
19th Sep 2025266 PMAQI
19th Sep 2025267 PMAQI
19th Sep 2025288 PMAQI
19th Sep 2025309 PMAQI
19th Sep 20253110 PMAQI
19th Sep 20253011 PMAQI
20th Sep 20253012 AMAQI
20th Sep 2025321 AMAQI
20th Sep 2025322 AMAQI
20th Sep 2025323 AMAQI
20th Sep 2025334 AMAQI
19°C16/23°C
20th Sep 2025325 AMAQI
20th Sep 2025326 AMAQI
20th Sep 2025317 AMAQI
20th Sep 2025328 AMAQI
20th Sep 2025289 AMAQI
20th Sep 20252510 AMAQI
20th Sep 20252611 AMAQI
20th Sep 20253012 PMAQI
20th Sep 2025271 PMAQI
20th Sep 2025242 PMAQI
20th Sep 2025243 PMAQI
20th Sep 2025254 PMAQI
20th Sep 2025285 PMAQI
20th Sep 2025306 PMAQI
20th Sep 2025297 PMAQI
20th Sep 2025298 PMAQI
20th Sep 2025299 PMAQI
20th Sep 20252810 PMAQI
20th Sep 20252711 PMAQI
21st Sep 20252812 AMAQI
21st Sep 2025281 AMAQI
21st Sep 2025292 AMAQI
21st Sep 2025303 AMAQI
21st Sep 2025294 AMAQI
20°C18/23°C
21st Sep 2025305 AMAQI
5 AM21st Sep 2025296 AMAQI
21st Sep 2025307 AMAQI
21st Sep 2025298 AMAQI
21st Sep 2025179 AMAQI
21st Sep 20251510 AMAQI
21st Sep 20251611 AMAQI
11 AM21st Sep 20251612 PMAQI
21st Sep 2025191 PMAQI
21st Sep 2025192 PMAQI
21st Sep 2025193 PMAQI
21st Sep 2025184 PMAQI
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
38AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM
30AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 38), while the lowest AQI was between 9 AM to 9 AM (Avg. 30).
Night time
Avg. Highest Time
1 AM - 4 AM
39AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM
35AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 39), while the lowest AQI was between 12 AM to 12 AM (Avg. 35).
2025 Days Vs Air Quality
Shiroishi, Miyagi, Japan
2025
90%
236
10%
27
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Good
236 DaysModerate
27 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 264 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
Shiroishi, Miyagi, 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
27AQI
27AQI
2nd January 2025
26AQI
26AQI
3rd January 2025
25AQI
25AQI
4th January 2025
25AQI
25AQI
5th January 2025
26AQI
26AQI
6th January 2025
36AQI
36AQI
7th January 2025
26AQI
26AQI
8th January 2025
24AQI
24AQI
9th January 2025
21AQI
21AQI
10th January 2025
21AQI
21AQI
11th January 2025
20AQI
20AQI
12th January 2025
23AQI
23AQI
13th January 2025
23AQI
23AQI
14th January 2025
28AQI
28AQI
15th January 2025
24AQI
24AQI
16th January 2025
24AQI
24AQI
17th January 2025
23AQI
23AQI
18th January 2025
25AQI
25AQI
19th January 2025
39AQI
39AQI
20th January 2025
43AQI
43AQI
21st January 2025
49AQI
49AQI
22nd January 2025
39AQI
39AQI
23rd January 2025
40AQI
40AQI
24th January 2025
39AQI
39AQI
25th January 2025
32AQI
32AQI
26th January 2025
29AQI
29AQI
27th January 2025
31AQI
31AQI
28th January 2025
30AQI
30AQI
29th January 2025
26AQI
26AQI
30th January 2025
25AQI
25AQI
31st January 2025
26AQI
26AQI
1st February 2025
27AQI
27AQI
2nd February 2025
32AQI
32AQI
3rd February 2025
32AQI
32AQI
4th February 2025
28AQI
28AQI
5th February 2025
24AQI
24AQI
6th February 2025
24AQI
24AQI
7th February 2025
29AQI
29AQI
8th February 2025
23AQI
23AQI
9th February 2025
24AQI
24AQI
10th February 2025
25AQI
25AQI
11th February 2025
25AQI
25AQI
12th February 2025
33AQI
33AQI
13th February 2025
26AQI
26AQI
14th February 2025
29AQI
29AQI
15th February 2025
24AQI
24AQI
16th February 2025
34AQI
34AQI
17th February 2025
41AQI
41AQI
18th February 2025
28AQI
28AQI
19th February 2025
31AQI
31AQI
20th February 2025
24AQI
24AQI
21st February 2025
25AQI
25AQI
22nd February 2025
24AQI
24AQI
23rd February 2025
25AQI
25AQI
24th February 2025
26AQI
26AQI
25th February 2025
32AQI
32AQI
26th February 2025
42AQI
42AQI
27th February 2025
40AQI
40AQI
28th February 2025
51AQI
51AQI
1st March 2025
49AQI
49AQI
2nd March 2025
56AQI
56AQI
3rd March 2025
37AQI
37AQI
4th March 2025
37AQI
37AQI
5th March 2025
25AQI
25AQI
6th March 2025
26AQI
26AQI
7th March 2025
26AQI
26AQI
8th March 2025
34AQI
34AQI
9th March 2025
29AQI
29AQI
10th March 2025
41AQI
41AQI
11th March 2025
39AQI
39AQI
12th March 2025
46AQI
46AQI
13th March 2025
51AQI
51AQI
14th March 2025
45AQI
45AQI
15th March 2025
47AQI
47AQI
16th March 2025
29AQI
29AQI
17th March 2025
23AQI
23AQI
18th March 2025
28AQI
28AQI
19th March 2025
24AQI
24AQI
20th March 2025
31AQI
31AQI
21st March 2025
49AQI
49AQI
22nd March 2025
53AQI
53AQI
23rd March 2025
47AQI
47AQI
24th March 2025
45AQI
45AQI
25th March 2025
68AQI
68AQI
26th March 2025
65AQI
65AQI
27th March 2025
66AQI
66AQI
28th March 2025
50AQI
50AQI
29th March 2025
41AQI
41AQI
30th March 2025
39AQI
39AQI
31st March 2025
40AQI
40AQI
1st April 2025
33AQI
33AQI
2nd April 2025
25AQI
25AQI
3rd April 2025
22AQI
22AQI
4th April 2025
21AQI
21AQI
5th April 2025
29AQI
29AQI
6th April 2025
32AQI
32AQI
7th April 2025
30AQI
30AQI
8th April 2025
43AQI
43AQI
9th April 2025
33AQI
33AQI
10th April 2025
48AQI
48AQI
11th April 2025
48AQI
48AQI
12th April 2025
42AQI
42AQI
13th April 2025
31AQI
31AQI
14th April 2025
23AQI
23AQI
15th April 2025
25AQI
25AQI
16th April 2025
24AQI
24AQI
17th April 2025
43AQI
43AQI
18th April 2025
48AQI
48AQI
19th April 2025
62AQI
62AQI
20th April 2025
52AQI
52AQI
21st April 2025
47AQI
47AQI
22nd April 2025
49AQI
49AQI
23rd April 2025
41AQI
41AQI
24th April 2025
35AQI
35AQI
25th April 2025
42AQI
42AQI
26th April 2025
51AQI
51AQI
27th April 2025
52AQI
52AQI
28th April 2025
54AQI
54AQI
29th April 2025
33AQI
33AQI
30th April 2025
31AQI
31AQI
1st May 2025
30AQI
30AQI
2nd May 2025
29AQI
29AQI
3rd May 2025
35AQI
35AQI
4th May 2025
33AQI
33AQI
5th May 2025
38AQI
38AQI
6th May 2025
35AQI
35AQI
7th May 2025
31AQI
31AQI
8th May 2025
38AQI
38AQI
9th May 2025
38AQI
38AQI
10th May 2025
29AQI
29AQI
11th May 2025
27AQI
27AQI
12th May 2025
27AQI
27AQI
13th May 2025
39AQI
39AQI
14th May 2025
46AQI
46AQI
15th May 2025
50AQI
50AQI
16th May 2025
53AQI
53AQI
17th May 2025
42AQI
42AQI
18th May 2025
45AQI
45AQI
19th May 2025
42AQI
42AQI
20th May 2025
52AQI
52AQI
21st May 2025
56AQI
56AQI
22nd May 2025
49AQI
49AQI
23rd May 2025
47AQI
47AQI
24th May 2025
43AQI
43AQI
25th May 2025
27AQI
27AQI
26th May 2025
30AQI
30AQI
27th May 2025
32AQI
32AQI
28th May 2025
31AQI
31AQI
29th May 2025
35AQI
35AQI
30th May 2025
33AQI
33AQI
31st May 2025
21AQI
21AQI
1st June 2025
21AQI
21AQI
2nd June 2025
38AQI
38AQI
3rd June 2025
38AQI
38AQI
4th June 2025
34AQI
34AQI
5th June 2025
37AQI
37AQI
6th June 2025
44AQI
44AQI
7th June 2025
53AQI
53AQI
8th June 2025
58AQI
58AQI
9th June 2025
61AQI
61AQI
10th June 2025
57AQI
57AQI
11th June 2025
47AQI
47AQI
12th June 2025
42AQI
42AQI
13th June 2025
39AQI
39AQI
14th June 2025
39AQI
39AQI
15th June 2025
31AQI
31AQI
16th June 2025
28AQI
28AQI
17th June 2025
32AQI
32AQI
18th June 2025
38AQI
38AQI
19th June 2025
42AQI
42AQI
20th June 2025
38AQI
38AQI
21st June 2025
40AQI
40AQI
22nd June 2025
45AQI
45AQI
23rd June 2025
44AQI
44AQI
24th June 2025
41AQI
41AQI
25th June 2025
41AQI
41AQI
26th June 2025
36AQI
36AQI
27th June 2025
36AQI
36AQI
28th June 2025
37AQI
37AQI
29th June 2025
38AQI
38AQI
30th June 2025
44AQI
44AQI
1st July 2025
45AQI
45AQI
2nd July 2025
47AQI
47AQI
3rd July 2025
54AQI
54AQI
4th July 2025
54AQI
54AQI
5th July 2025
54AQI
54AQI
6th July 2025
55AQI
55AQI
7th July 2025
56AQI
56AQI
8th July 2025
58AQI
58AQI
9th July 2025
61AQI
61AQI
10th July 2025
53AQI
53AQI
11th July 2025
49AQI
49AQI
12th July 2025
48AQI
48AQI
13th July 2025
50AQI
50AQI
14th July 2025
47AQI
47AQI
15th July 2025
43AQI
43AQI
16th July 2025
45AQI
45AQI
17th July 2025
41AQI
41AQI
18th July 2025
43AQI
43AQI
19th July 2025
42AQI
42AQI
20th July 2025
43AQI
43AQI
21st July 2025
43AQI
43AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
44AQI
44AQI
24th July 2025
46AQI
46AQI
25th July 2025
49AQI
49AQI
26th July 2025
50AQI
50AQI
27th July 2025
50AQI
50AQI
28th July 2025
46AQI
46AQI
29th July 2025
49AQI
49AQI
30th July 2025
45AQI
45AQI
31st July 2025
41AQI
41AQI
1st August 2025
36AQI
36AQI
2nd August 2025
38AQI
38AQI
3rd August 2025
39AQI
39AQI
4th August 2025
44AQI
44AQI
5th August 2025
43AQI
43AQI
6th August 2025
37AQI
37AQI
7th August 2025
35AQI
35AQI
8th August 2025
33AQI
33AQI
9th August 2025
34AQI
34AQI
10th August 2025
37AQI
37AQI
11th August 2025
33AQI
33AQI
12th August 2025
32AQI
32AQI
13th August 2025
29AQI
29AQI
14th August 2025
29AQI
29AQI
15th August 2025
29AQI
29AQI
16th August 2025
31AQI
31AQI
17th August 2025
37AQI
37AQI
18th August 2025
37AQI
37AQI
19th August 2025
38AQI
38AQI
20th August 2025
46AQI
46AQI
21st August 2025
42AQI
42AQI
22nd August 2025
44AQI
44AQI
23rd August 2025
46AQI
46AQI
24th August 2025
49AQI
49AQI
25th August 2025
44AQI
44AQI
26th August 2025
50AQI
50AQI
27th August 2025
43AQI
43AQI
28th August 2025
38AQI
38AQI
29th August 2025
40AQI
40AQI
30th August 2025
44AQI
44AQI
31st August 2025
43AQI
43AQI
1st September 2025
45AQI
45AQI
2nd September 2025
37AQI
37AQI
3rd September 2025
35AQI
35AQI
4th September 2025
33AQI
33AQI
5th September 2025
31AQI
31AQI
6th September 2025
28AQI
28AQI
7th September 2025
29AQI
29AQI
8th September 2025
31AQI
31AQI
9th September 2025
35AQI
35AQI
10th September 2025
33AQI
33AQI
11th September 2025
33AQI
33AQI
12th September 2025
32AQI
32AQI
13th September 2025
28AQI
28AQI
14th September 2025
31AQI
31AQI
15th September 2025
33AQI
33AQI
16th September 2025
31AQI
31AQI
17th September 2025
36AQI
36AQI
18th September 2025
30AQI
30AQI
19th September 2025
29AQI
29AQI
20th September 2025
31AQI
31AQI
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
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
29AQI
30AQI
41AQI
38AQI
38AQI
41AQI
48AQI
39AQI
33AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202538AQI
31
27
1
25
6
25
5
28
3
26
4
23
8
31
20
236
27
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
January29AQI
202433AQI
31
29
27
4
15
14
1
27
4
24
6
24
7
30
1
30
31
27
3
31
326
39
1
Highest AQI recorded in
April52AQI
Lowest AQI recorded in
January23AQI
202334AQI
31
26
2
18
11
18
12
24
7
26
4
24
7
29
2
30
31
28
1
30
1
315
47
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
December25AQI
202233AQI
30
20
1
23
8
23
6
23
8
26
4
20
1
1
28
29
2
28
2
31
282
32
Highest AQI recorded in
March41AQI
Lowest AQI recorded in
December22AQI
202135AQI
30
1
24
4
23
7
1
25
5
28
3
20
10
24
7
31
30
29
2
26
4
31
321
43
1
Highest AQI recorded in
March45AQI
Lowest AQI recorded in
December25AQI
202035AQI
12
1
18
3
16
2
23
7
29
2
21
10
19
30
1
24
6
30
1
222
33
Highest AQI recorded in
August46AQI
Lowest AQI recorded in
December24AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
38AQILeast Polluted Year Recorded
2022(Avg.)
33AQIShiroishi's annual 2025 AQI (38) shows an average percentage change of 10.9% (worsened AQI) compared to previous years: 2020 (35), 2021 (35), 2022 (33), 2023 (34), 2024 (33).
