Shimadachi, Minamiozuma, Nagano, 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
Shimadachi, Minamiozuma, Nagano, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2024
55AQILowest AQI recorded on
2nd Aug 2022
10AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Shimadachi, Minamiozuma, Nagano, Japan
AQI
Day
Night
.
4 AM2nd Aug 2025
7 PM
3 AM3rd Aug 2025
Day time
Avg. Highest Time
9AM2nd Aug
58AQI
Avg. Lowest Time
7AM2nd Aug
40AQI
Night time
Avg. Highest Time
7PM2nd Aug
51AQI
Avg. Lowest Time
12AM3rd Aug
36AQI
In the last 24 hours,
Shimadachi's AQI reached its highest point of 58 at 9 AM during the Day, while the lowest point, 36, was recorded at 12 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Shimadachi, Minamiozuma, Nagano, Japan
JulAug
04th - 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 - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Jul 2025494 AMAQI
4th Jul 2025485 AMAQI
4th Jul 2025496 AMAQI
4th Jul 2025487 AMAQI
4th Jul 2025488 AMAQI
4th Jul 2025539 AMAQI
4th Jul 20255710 AMAQI
4th Jul 20256011 AMAQI
4th Jul 20255912 PMAQI
4th Jul 2025571 PMAQI
4th Jul 2025562 PMAQI
4th Jul 2025603 PMAQI
4th Jul 2025604 PMAQI
4th Jul 2025545 PMAQI
4th Jul 2025506 PMAQI
4th Jul 2025427 PMAQI
4th Jul 2025428 PMAQI
4th Jul 2025469 PMAQI
4th Jul 20255010 PMAQI
4th Jul 20255211 PMAQI
5th Jul 20254812 AMAQI
5th Jul 2025491 AMAQI
5th Jul 2025512 AMAQI
5th Jul 2025513 AMAQI
22°C15/31°C
5th Jul 2025524 AMAQI
5th Jul 2025525 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025528 AMAQI
5th Jul 2025529 AMAQI
5th Jul 20254810 AMAQI
5th Jul 20255111 AMAQI
5th Jul 20256012 PMAQI
5th Jul 2025661 PMAQI
5th Jul 2025702 PMAQI
5th Jul 2025693 PMAQI
5th Jul 2025684 PMAQI
5th Jul 2025685 PMAQI
5th Jul 2025686 PMAQI
5th Jul 2025677 PMAQI
5th Jul 2025608 PMAQI
5th Jul 2025559 PMAQI
5th Jul 20255510 PMAQI
5th Jul 20255411 PMAQI
6th Jul 20255412 AMAQI
6th Jul 2025531 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
21°C15/30°C
6th Jul 2025524 AMAQI
6th Jul 2025535 AMAQI
6th Jul 2025536 AMAQI
6th Jul 2025537 AMAQI
6th Jul 2025538 AMAQI
6th Jul 2025539 AMAQI
6th Jul 20256010 AMAQI
6th Jul 20256411 AMAQI
6th Jul 20256112 PMAQI
6th Jul 2025591 PMAQI
6th Jul 2025552 PMAQI
6th Jul 2025513 PMAQI
6th Jul 2025504 PMAQI
6th Jul 2025525 PMAQI
6th Jul 2025516 PMAQI
6th Jul 2025547 PMAQI
6th Jul 2025538 PMAQI
6th Jul 2025539 PMAQI
6th Jul 20255210 PMAQI
6th Jul 20255311 PMAQI
7th Jul 20255412 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025532 AMAQI
7th Jul 2025533 AMAQI
23°C15/31°C
7th Jul 2025544 AMAQI
7th Jul 2025545 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025548 AMAQI
7th Jul 2025549 AMAQI
7th Jul 20255510 AMAQI
7th Jul 20256011 AMAQI
7th Jul 20256012 PMAQI
7th Jul 2025591 PMAQI
7th Jul 2025572 PMAQI
7th Jul 2025553 PMAQI
7th Jul 2025564 PMAQI
7th Jul 2025565 PMAQI
7th Jul 2025586 PMAQI
7th Jul 2025587 PMAQI
7th Jul 2025588 PMAQI
7th Jul 2025569 PMAQI
7th Jul 20255810 PMAQI
7th Jul 20255811 PMAQI
8th Jul 20255912 AMAQI
8th Jul 2025561 AMAQI
8th Jul 2025552 AMAQI
8th Jul 2025543 AMAQI
23°C17/32°C
8th Jul 2025544 AMAQI
8th Jul 2025555 AMAQI
8th Jul 2025556 AMAQI
8th Jul 2025557 AMAQI
8th Jul 2025558 AMAQI
8th Jul 2025589 AMAQI
8th Jul 20256010 AMAQI
8th Jul 20256611 AMAQI
8th Jul 20256612 PMAQI
8th Jul 2025641 PMAQI
8th Jul 2025622 PMAQI
8th Jul 2025613 PMAQI
8th Jul 2025634 PMAQI
8th Jul 2025645 PMAQI
8th Jul 2025606 PMAQI
8th Jul 2025577 PMAQI
8th Jul 2025588 PMAQI
8th Jul 2025609 PMAQI
8th Jul 20256010 PMAQI
8th Jul 20256011 PMAQI
9th Jul 20256012 AMAQI
9th Jul 2025591 AMAQI
9th Jul 2025562 AMAQI
9th Jul 2025563 AMAQI
24°C18/30°C
9th Jul 2025574 AMAQI
9th Jul 2025575 AMAQI
9th Jul 2025586 AMAQI
9th Jul 2025587 AMAQI
9th Jul 2025588 AMAQI
9th Jul 2025689 AMAQI
9th Jul 20257010 AMAQI
9th Jul 20256311 AMAQI
9th Jul 20256012 PMAQI
9th Jul 2025591 PMAQI
9th Jul 2025602 PMAQI
9th Jul 2025573 PMAQI
9th Jul 2025544 PMAQI
9th Jul 2025645 PMAQI
9th Jul 2025636 PMAQI
9th Jul 2025607 PMAQI
9th Jul 2025548 PMAQI
9th Jul 2025549 PMAQI
9th Jul 20255410 PMAQI
9th Jul 20255311 PMAQI
10th Jul 20255312 AMAQI
10th Jul 2025551 AMAQI
10th Jul 2025582 AMAQI
10th Jul 2025593 AMAQI
23°C17/31°C
10th Jul 2025594 AMAQI
10th Jul 2025605 AMAQI
10th Jul 2025606 AMAQI
10th Jul 2025607 AMAQI
10th Jul 2025608 AMAQI
10th Jul 2025459 AMAQI
10th Jul 20254810 AMAQI
10th Jul 20256011 AMAQI
10th Jul 20256212 PMAQI
10th Jul 2025641 PMAQI
10th Jul 2025632 PMAQI
10th Jul 2025633 PMAQI
10th Jul 2025614 PMAQI
10th Jul 2025555 PMAQI
10th Jul 2025516 PMAQI
10th Jul 2025507 PMAQI
10th Jul 2025528 PMAQI
10th Jul 2025539 PMAQI
10th Jul 20255210 PMAQI
10th Jul 20255211 PMAQI
11th Jul 20255112 AMAQI
11th Jul 2025551 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025583 AMAQI
22°C16/31°C
11th Jul 2025604 AMAQI
11th Jul 2025595 AMAQI
11th Jul 2025596 AMAQI
11th Jul 2025607 AMAQI
11th Jul 2025608 AMAQI
11th Jul 2025309 AMAQI
11th Jul 20252010 AMAQI
11th Jul 20252211 AMAQI
11th Jul 20252812 PMAQI
11th Jul 2025351 PMAQI
11th Jul 2025362 PMAQI
11th Jul 2025363 PMAQI
11th Jul 2025404 PMAQI
11th Jul 2025365 PMAQI
11th Jul 2025386 PMAQI
11th Jul 2025387 PMAQI
11th Jul 2025458 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255211 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025531 AMAQI
12th Jul 2025582 AMAQI
12th Jul 2025583 AMAQI
22°C15/29°C
12th Jul 2025564 AMAQI
12th Jul 2025555 AMAQI
12th Jul 2025556 AMAQI
12th Jul 2025557 AMAQI
12th Jul 2025548 AMAQI
12th Jul 2025289 AMAQI
12th Jul 20252510 AMAQI
12th Jul 20253411 AMAQI
12th Jul 20253412 PMAQI
12th Jul 2025371 PMAQI
12th Jul 2025382 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025385 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025509 PMAQI
12th Jul 20254810 PMAQI
12th Jul 20255011 PMAQI
13th Jul 20255112 AMAQI
13th Jul 2025531 AMAQI
13th Jul 2025552 AMAQI
13th Jul 2025553 AMAQI
23°C17/30°C
13th Jul 2025544 AMAQI
13th Jul 2025535 AMAQI
13th Jul 2025536 AMAQI
13th Jul 2025537 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253412 PMAQI
13th Jul 2025401 PMAQI
13th Jul 2025372 PMAQI
13th Jul 2025383 PMAQI
13th Jul 2025384 PMAQI
13th Jul 2025385 PMAQI
13th Jul 2025386 PMAQI
13th Jul 2025387 PMAQI
13th Jul 2025448 PMAQI
13th Jul 2025529 PMAQI
13th Jul 20255010 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255312 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025543 AMAQI
23°C16/32°C
14th Jul 2025544 AMAQI
14th Jul 2025525 AMAQI
14th Jul 2025526 AMAQI
14th Jul 2025537 AMAQI
14th Jul 2025528 AMAQI
14th Jul 2025449 AMAQI
14th Jul 20254610 AMAQI
14th Jul 20254411 AMAQI
14th Jul 20253612 PMAQI
14th Jul 2025361 PMAQI
14th Jul 2025332 PMAQI
14th Jul 2025343 PMAQI
14th Jul 2025364 PMAQI
14th Jul 2025345 PMAQI
14th Jul 2025296 PMAQI
14th Jul 2025227 PMAQI
14th Jul 2025288 PMAQI
14th Jul 2025389 PMAQI
14th Jul 20253910 PMAQI
14th Jul 20254011 PMAQI
15th Jul 20254012 AMAQI
15th Jul 2025441 AMAQI
15th Jul 2025532 AMAQI
15th Jul 2025543 AMAQI
23°C16/31°C
15th Jul 2025534 AMAQI
15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20251410 AMAQI
15th Jul 20251411 AMAQI
15th Jul 20251612 PMAQI
15th Jul 2025201 PMAQI
15th Jul 2025222 PMAQI
15th Jul 2025223 PMAQI
15th Jul 2025204 PMAQI
15th Jul 2025185 PMAQI
15th Jul 2025176 PMAQI
15th Jul 2025207 PMAQI
15th Jul 2025298 PMAQI
15th Jul 2025399 PMAQI
15th Jul 20254010 PMAQI
15th Jul 20254111 PMAQI
16th Jul 20254112 AMAQI
16th Jul 2025461 AMAQI
16th Jul 2025512 AMAQI
16th Jul 2025523 AMAQI
21°C15/28°C
16th Jul 2025504 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025466 AMAQI
16th Jul 2025467 AMAQI
16th Jul 2025478 AMAQI
16th Jul 2025479 AMAQI
16th Jul 20254810 AMAQI
16th Jul 20254911 AMAQI
16th Jul 20254812 PMAQI
16th Jul 2025451 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025414 PMAQI
16th Jul 2025385 PMAQI
16th Jul 2025396 PMAQI
16th Jul 2025367 PMAQI
16th Jul 2025328 PMAQI
16th Jul 2025379 PMAQI
16th Jul 20253510 PMAQI
16th Jul 20253511 PMAQI
17th Jul 20253412 AMAQI
17th Jul 2025351 AMAQI
17th Jul 2025412 AMAQI
17th Jul 2025483 AMAQI
21°C14/30°C
17th Jul 2025484 AMAQI
17th Jul 2025495 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025239 AMAQI
17th Jul 20251810 AMAQI
17th Jul 20251511 AMAQI
17th Jul 20251612 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025212 PMAQI
17th Jul 2025203 PMAQI
17th Jul 2025204 PMAQI
17th Jul 2025225 PMAQI
17th Jul 2025256 PMAQI
17th Jul 2025297 PMAQI
17th Jul 2025338 PMAQI
17th Jul 2025399 PMAQI
17th Jul 20253810 PMAQI
17th Jul 20253811 PMAQI
18th Jul 20253812 AMAQI
18th Jul 2025421 AMAQI
18th Jul 2025452 AMAQI
18th Jul 2025463 AMAQI
19°C15/23°C
18th Jul 2025444 AMAQI
18th Jul 2025405 AMAQI
18th Jul 2025406 AMAQI
18th Jul 2025417 AMAQI
18th Jul 2025418 AMAQI
18th Jul 2025309 AMAQI
18th Jul 20252210 AMAQI
18th Jul 20252411 AMAQI
18th Jul 20252212 PMAQI
18th Jul 2025261 PMAQI
18th Jul 2025272 PMAQI
18th Jul 2025263 PMAQI
18th Jul 2025284 PMAQI
18th Jul 2025315 PMAQI
18th Jul 2025296 PMAQI
18th Jul 2025297 PMAQI
18th Jul 2025348 PMAQI
18th Jul 2025389 PMAQI
18th Jul 20253810 PMAQI
18th Jul 20253911 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025421 AMAQI
19th Jul 2025432 AMAQI
19th Jul 2025443 AMAQI
21°C13/31°C
19th Jul 2025424 AMAQI
19th Jul 2025405 AMAQI
19th Jul 2025406 AMAQI
19th Jul 2025407 AMAQI
19th Jul 2025408 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252611 AMAQI
19th Jul 20252412 PMAQI
19th Jul 2025281 PMAQI
19th Jul 2025242 PMAQI
19th Jul 2025243 PMAQI
19th Jul 2025264 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025276 PMAQI
19th Jul 2025237 PMAQI
19th Jul 2025328 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253410 PMAQI
19th Jul 20253611 PMAQI
20th Jul 20253812 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025423 AMAQI
22°C15/31°C
20th Jul 2025414 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025379 AMAQI
20th Jul 20253310 AMAQI
20th Jul 20253111 AMAQI
20th Jul 20253012 PMAQI
20th Jul 2025301 PMAQI
20th Jul 2025272 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025284 PMAQI
20th Jul 2025275 PMAQI
20th Jul 2025276 PMAQI
20th Jul 2025267 PMAQI
20th Jul 2025348 PMAQI
20th Jul 2025379 PMAQI
20th Jul 20254210 PMAQI
20th Jul 20253811 PMAQI
21st Jul 20253812 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025413 AMAQI
23°C15/33°C
21st Jul 2025404 AMAQI
21st Jul 2025395 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025387 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025419 AMAQI
21st Jul 20254510 AMAQI
21st Jul 20254511 AMAQI
21st Jul 20254412 PMAQI
21st Jul 2025391 PMAQI
21st Jul 2025362 PMAQI
21st Jul 2025353 PMAQI
21st Jul 2025334 PMAQI
21st Jul 2025335 PMAQI
21st Jul 2025406 PMAQI
21st Jul 2025357 PMAQI
21st Jul 2025318 PMAQI
21st Jul 2025349 PMAQI
21st Jul 20253410 PMAQI
21st Jul 20253411 PMAQI
22nd Jul 20253412 AMAQI
22nd Jul 2025351 AMAQI
22nd Jul 2025372 AMAQI
22nd Jul 2025403 AMAQI
23°C16/33°C
22nd Jul 2025394 AMAQI
22nd Jul 2025395 AMAQI
22nd Jul 2025396 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025408 AMAQI
22nd Jul 2025429 AMAQI
22nd Jul 20255010 AMAQI
22nd Jul 20255211 AMAQI
22nd Jul 20255212 PMAQI
22nd Jul 2025501 PMAQI
22nd Jul 2025472 PMAQI
22nd Jul 2025423 PMAQI
22nd Jul 2025424 PMAQI
22nd Jul 2025405 PMAQI
22nd Jul 2025336 PMAQI
22nd Jul 2025367 PMAQI
22nd Jul 2025388 PMAQI
22nd Jul 2025389 PMAQI
22nd Jul 20253810 PMAQI
22nd Jul 20253611 PMAQI
23rd Jul 20253812 AMAQI
23rd Jul 2025381 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI
23°C16/32°C
23rd Jul 2025384 AMAQI
23rd Jul 2025405 AMAQI
23rd Jul 2025406 AMAQI
23rd Jul 2025407 AMAQI
23rd Jul 2025408 AMAQI
23rd Jul 2025469 AMAQI
23rd Jul 20255310 AMAQI
23rd Jul 20255811 AMAQI
23rd Jul 20255712 PMAQI
23rd Jul 2025561 PMAQI
23rd Jul 2025492 PMAQI
23rd Jul 2025493 PMAQI
23rd Jul 2025504 PMAQI
23rd Jul 2025505 PMAQI
23rd Jul 2025466 PMAQI
23rd Jul 2025337 PMAQI
23rd Jul 2025298 PMAQI
23rd Jul 2025349 PMAQI
23rd Jul 20253310 PMAQI
23rd Jul 20253311 PMAQI
24th Jul 20253412 AMAQI
24th Jul 2025371 AMAQI
24th Jul 2025402 AMAQI
24th Jul 2025403 AMAQI
23°C15/32°C
24th Jul 2025414 AMAQI
24th Jul 2025425 AMAQI
24th Jul 2025426 AMAQI
24th Jul 2025427 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025359 AMAQI
24th Jul 20254010 AMAQI
24th Jul 20254911 AMAQI
24th Jul 20255512 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025532 PMAQI
24th Jul 2025503 PMAQI
24th Jul 2025484 PMAQI
24th Jul 2025445 PMAQI
24th Jul 2025386 PMAQI
24th Jul 2025367 PMAQI
24th Jul 2025348 PMAQI
24th Jul 2025359 PMAQI
24th Jul 20253410 PMAQI
24th Jul 20253311 PMAQI
25th Jul 20253612 AMAQI
25th Jul 2025381 AMAQI
25th Jul 2025402 AMAQI
25th Jul 2025393 AMAQI
22°C15/32°C
25th Jul 2025414 AMAQI
25th Jul 2025435 AMAQI
25th Jul 2025446 AMAQI
25th Jul 2025437 AMAQI
25th Jul 2025438 AMAQI
25th Jul 2025389 AMAQI
25th Jul 20253810 AMAQI
25th Jul 20254211 AMAQI
25th Jul 20254012 PMAQI
25th Jul 2025381 PMAQI
25th Jul 2025432 PMAQI
25th Jul 2025433 PMAQI
25th Jul 2025414 PMAQI
25th Jul 2025385 PMAQI
25th Jul 2025366 PMAQI
25th Jul 2025377 PMAQI
25th Jul 2025368 PMAQI
25th Jul 2025359 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253511 PMAQI
26th Jul 20253512 AMAQI
26th Jul 2025381 AMAQI
26th Jul 2025422 AMAQI
26th Jul 2025413 AMAQI
22°C15/32°C
26th Jul 2025404 AMAQI
26th Jul 2025425 AMAQI
26th Jul 2025416 AMAQI
26th Jul 2025417 AMAQI
26th Jul 2025418 AMAQI
26th Jul 2025429 AMAQI
26th Jul 20254410 AMAQI
26th Jul 20254311 AMAQI
26th Jul 20254212 PMAQI
26th Jul 2025421 PMAQI
26th Jul 2025442 PMAQI
26th Jul 2025383 PMAQI
26th Jul 2025434 PMAQI
26th Jul 2025395 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025267 PMAQI
26th Jul 2025298 PMAQI
26th Jul 2025339 PMAQI
26th Jul 20253310 PMAQI
26th Jul 20253311 PMAQI
27th Jul 20253412 AMAQI
27th Jul 2025371 AMAQI
27th Jul 2025402 AMAQI
27th Jul 2025413 AMAQI
22°C15/33°C
27th Jul 2025414 AMAQI
27th Jul 2025415 AMAQI
27th Jul 2025426 AMAQI
27th Jul 2025427 AMAQI
27th Jul 2025418 AMAQI
27th Jul 2025369 AMAQI
27th Jul 20253710 AMAQI
27th Jul 20253311 AMAQI
27th Jul 20253312 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025342 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025364 PMAQI
27th Jul 2025405 PMAQI
27th Jul 2025366 PMAQI
27th Jul 2025397 PMAQI
27th Jul 2025388 PMAQI
27th Jul 2025369 PMAQI
27th Jul 20253410 PMAQI
27th Jul 20253211 PMAQI
28th Jul 20253512 AMAQI
28th Jul 2025381 AMAQI
28th Jul 2025402 AMAQI
28th Jul 2025403 AMAQI
23°C15/32°C
28th Jul 2025394 AMAQI
28th Jul 2025405 AMAQI
28th Jul 2025406 AMAQI
28th Jul 2025407 AMAQI
28th Jul 2025408 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20254010 AMAQI
28th Jul 20254411 AMAQI
28th Jul 20254612 PMAQI
28th Jul 2025421 PMAQI
28th Jul 2025402 PMAQI
28th Jul 2025383 PMAQI
28th Jul 2025384 PMAQI
28th Jul 2025375 PMAQI
28th Jul 2025386 PMAQI
28th Jul 2025417 PMAQI
28th Jul 2025448 PMAQI
28th Jul 2025459 PMAQI
28th Jul 20254410 PMAQI
28th Jul 20254011 PMAQI
29th Jul 20254012 AMAQI
29th Jul 2025391 AMAQI
29th Jul 2025402 AMAQI
29th Jul 2025403 AMAQI
23°C16/32°C
29th Jul 2025414 AMAQI
29th Jul 2025405 AMAQI
29th Jul 2025426 AMAQI
29th Jul 2025417 AMAQI
29th Jul 2025408 AMAQI
29th Jul 2025519 AMAQI
29th Jul 20255910 AMAQI
29th Jul 20255911 AMAQI
29th Jul 20255812 PMAQI
29th Jul 2025591 PMAQI
29th Jul 2025562 PMAQI
29th Jul 2025583 PMAQI
29th Jul 2025584 PMAQI
29th Jul 2025595 PMAQI
29th Jul 2025576 PMAQI
29th Jul 2025557 PMAQI
29th Jul 2025538 PMAQI
29th Jul 2025489 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20254211 PMAQI
30th Jul 20254212 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025412 AMAQI
30th Jul 2025423 AMAQI
24°C16/34°C
30th Jul 2025434 AMAQI
30th Jul 2025445 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025448 AMAQI
30th Jul 2025569 AMAQI
30th Jul 20255910 AMAQI
30th Jul 20256311 AMAQI
30th Jul 20256012 PMAQI
30th Jul 2025561 PMAQI
30th Jul 2025552 PMAQI
30th Jul 2025523 PMAQI
30th Jul 2025514 PMAQI
30th Jul 2025505 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025437 PMAQI
30th Jul 2025408 PMAQI
30th Jul 2025429 PMAQI
30th Jul 20254210 PMAQI
30th Jul 20254111 PMAQI
31st Jul 20254012 AMAQI
31st Jul 2025421 AMAQI
31st Jul 2025442 AMAQI
31st Jul 2025423 AMAQI
24°C16/33°C
31st Jul 2025434 AMAQI
31st Jul 2025435 AMAQI
31st Jul 2025436 AMAQI
31st Jul 2025437 AMAQI
31st Jul 2025438 AMAQI
31st Jul 2025439 AMAQI
31st Jul 20254310 AMAQI
31st Jul 20254811 AMAQI
31st Jul 20254712 PMAQI
31st Jul 2025401 PMAQI
31st Jul 2025382 PMAQI
31st Jul 2025443 PMAQI
31st Jul 2025374 PMAQI
31st Jul 2025355 PMAQI
31st Jul 2025336 PMAQI
31st Jul 2025357 PMAQI
31st Jul 2025408 PMAQI
31st Jul 2025459 PMAQI
31st Jul 20253710 PMAQI
31st Jul 20254411 PMAQI
1st Aug 20253412 AMAQI
1st Aug 2025371 AMAQI
1st Aug 2025332 AMAQI
1st Aug 2025363 AMAQI
23°C15/33°C
1st Aug 2025374 AMAQI
1st Aug 2025375 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025377 AMAQI
1st Aug 2025388 AMAQI
1st Aug 2025569 AMAQI
1st Aug 20254810 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20254912 PMAQI
1st Aug 2025571 PMAQI
1st Aug 2025472 PMAQI
1st Aug 2025393 PMAQI
1st Aug 2025494 PMAQI
1st Aug 2025535 PMAQI
1st Aug 2025586 PMAQI
1st Aug 2025497 PMAQI
1st Aug 2025458 PMAQI
1st Aug 2025459 PMAQI
1st Aug 20253910 PMAQI
1st Aug 20253611 PMAQI
2nd Aug 20253512 AMAQI
2nd Aug 2025381 AMAQI
2nd Aug 2025432 AMAQI
2nd Aug 2025403 AMAQI
22°C14/31°C
2nd Aug 2025414 AMAQI
2nd Aug 2025425 AMAQI
2nd Aug 2025416 AMAQI
2nd Aug 2025407 AMAQI
2nd Aug 2025428 AMAQI
2nd Aug 2025589 AMAQI
2nd Aug 20254610 AMAQI
2nd Aug 20255511 AMAQI
2nd Aug 20254612 PMAQI
2nd Aug 2025521 PMAQI
2nd Aug 2025532 PMAQI
2nd Aug 2025563 PMAQI
2nd Aug 2025504 PMAQI
2nd Aug 2025555 PMAQI
2nd Aug 2025576 PMAQI
2nd Aug 2025517 PMAQI
2nd Aug 2025498 PMAQI
2nd Aug 2025419 PMAQI
2nd Aug 20254310 PMAQI
2nd Aug 20254111 PMAQI
3rd Aug 20253612 AMAQI
3rd Aug 2025391 AMAQI
3rd Aug 2025422 AMAQI
3rd Aug 2025393 AMAQI
24°C17/33°C
3rd Aug 2025414 AMAQI
4 AM3rd Aug 2025455 AMAQI
3rd Aug 2025426 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025448 AMAQI
3rd Aug 2025459 AMAQI
3rd Aug 20255410 AMAQI
3rd Aug 20255111 AMAQI
11 AM3rd Aug 20256212 PMAQI
3rd Aug 2025591 PMAQI
3rd Aug 2025642 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025614 PMAQI
3rd Aug 2025595 PMAQI
3rd Aug 2025596 PMAQI
3rd Aug 2025577 PMAQI
7 PM3rd Aug 2025578 PMAQI
3rd Aug 2025429 PMAQI
3rd Aug 20254210 PMAQI
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
47AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 AM - 7 PM
44AQI
11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 47), while the lowest AQI was between 9 AM to 7 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 3 AM
45AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
8 PM - 11 PM
43AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 45), while the lowest AQI was between 8 PM to 11 PM (Avg. 43).
2025 Days Vs Air Quality
Shimadachi, Minamiozuma, Nagano, Japan
2025
86%
183
14%
31
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
183 DaysModerate
31 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 215 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Shimadachi, Minamiozuma, Nagano, 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
34AQI
34AQI
2nd January 2025
32AQI
32AQI
3rd January 2025
29AQI
29AQI
4th January 2025
31AQI
31AQI
5th January 2025
32AQI
32AQI
6th January 2025
35AQI
35AQI
7th January 2025
33AQI
33AQI
8th January 2025
29AQI
29AQI
9th January 2025
29AQI
29AQI
10th January 2025
27AQI
27AQI
11th January 2025
31AQI
31AQI
12th January 2025
34AQI
34AQI
13th January 2025
35AQI
35AQI
14th January 2025
34AQI
34AQI
15th January 2025
34AQI
34AQI
16th January 2025
31AQI
31AQI
17th January 2025
32AQI
32AQI
18th January 2025
37AQI
37AQI
19th January 2025
35AQI
35AQI
20th January 2025
42AQI
42AQI
21st January 2025
44AQI
44AQI
22nd January 2025
48AQI
48AQI
23rd January 2025
53AQI
53AQI
24th January 2025
51AQI
51AQI
25th January 2025
39AQI
39AQI
26th January 2025
37AQI
37AQI
27th January 2025
33AQI
33AQI
28th January 2025
32AQI
32AQI
29th January 2025
35AQI
35AQI
30th January 2025
32AQI
32AQI
31st January 2025
37AQI
37AQI
1st February 2025
44AQI
44AQI
2nd February 2025
41AQI
41AQI
3rd February 2025
38AQI
38AQI
4th February 2025
34AQI
34AQI
5th February 2025
33AQI
33AQI
6th February 2025
31AQI
31AQI
7th February 2025
36AQI
36AQI
8th February 2025
30AQI
30AQI
9th February 2025
33AQI
33AQI
10th February 2025
32AQI
32AQI
11th February 2025
32AQI
32AQI
12th February 2025
32AQI
32AQI
13th February 2025
32AQI
32AQI
14th February 2025
35AQI
35AQI
15th February 2025
30AQI
30AQI
16th February 2025
48AQI
48AQI
17th February 2025
46AQI
46AQI
18th February 2025
40AQI
40AQI
19th February 2025
37AQI
37AQI
20th February 2025
32AQI
32AQI
21st February 2025
31AQI
31AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
33AQI
33AQI
24th February 2025
33AQI
33AQI
25th February 2025
36AQI
36AQI
26th February 2025
41AQI
41AQI
27th February 2025
47AQI
47AQI
28th February 2025
46AQI
46AQI
1st March 2025
52AQI
52AQI
2nd March 2025
44AQI
44AQI
3rd March 2025
40AQI
40AQI
4th March 2025
36AQI
36AQI
5th March 2025
38AQI
38AQI
6th March 2025
35AQI
35AQI
7th March 2025
36AQI
36AQI
8th March 2025
38AQI
38AQI
9th March 2025
35AQI
35AQI
10th March 2025
38AQI
38AQI
11th March 2025
33AQI
33AQI
12th March 2025
31AQI
31AQI
13th March 2025
43AQI
43AQI
14th March 2025
42AQI
42AQI
15th March 2025
44AQI
44AQI
16th March 2025
32AQI
32AQI
17th March 2025
30AQI
30AQI
18th March 2025
30AQI
30AQI
19th March 2025
24AQI
24AQI
20th March 2025
30AQI
30AQI
21st March 2025
44AQI
44AQI
22nd March 2025
49AQI
49AQI
23rd March 2025
59AQI
59AQI
24th March 2025
60AQI
60AQI
25th March 2025
76AQI
76AQI
26th March 2025
86AQI
86AQI
27th March 2025
70AQI
70AQI
28th March 2025
43AQI
43AQI
29th March 2025
39AQI
39AQI
30th March 2025
37AQI
37AQI
31st March 2025
34AQI
34AQI
1st April 2025
36AQI
36AQI
2nd April 2025
26AQI
26AQI
3rd April 2025
24AQI
24AQI
4th April 2025
24AQI
24AQI
5th April 2025
31AQI
31AQI
6th April 2025
24AQI
24AQI
7th April 2025
34AQI
34AQI
8th April 2025
40AQI
40AQI
9th April 2025
28AQI
28AQI
10th April 2025
42AQI
42AQI
11th April 2025
37AQI
37AQI
12th April 2025
46AQI
46AQI
13th April 2025
25AQI
25AQI
14th April 2025
29AQI
29AQI
15th April 2025
21AQI
21AQI
16th April 2025
26AQI
26AQI
17th April 2025
47AQI
47AQI
18th April 2025
51AQI
51AQI
19th April 2025
68AQI
68AQI
20th April 2025
53AQI
53AQI
21st April 2025
43AQI
43AQI
22nd April 2025
47AQI
47AQI
23rd April 2025
27AQI
27AQI
24th April 2025
27AQI
27AQI
25th April 2025
35AQI
35AQI
26th April 2025
43AQI
43AQI
27th April 2025
45AQI
45AQI
28th April 2025
45AQI
45AQI
29th April 2025
38AQI
38AQI
30th April 2025
54AQI
54AQI
1st May 2025
45AQI
45AQI
2nd May 2025
34AQI
34AQI
3rd May 2025
36AQI
36AQI
4th May 2025
34AQI
34AQI
5th May 2025
40AQI
40AQI
6th May 2025
28AQI
28AQI
7th May 2025
28AQI
28AQI
8th May 2025
31AQI
31AQI
9th May 2025
30AQI
30AQI
10th May 2025
24AQI
24AQI
11th May 2025
23AQI
23AQI
12th May 2025
26AQI
26AQI
13th May 2025
37AQI
37AQI
14th May 2025
45AQI
45AQI
15th May 2025
46AQI
46AQI
16th May 2025
51AQI
51AQI
17th May 2025
33AQI
33AQI
18th May 2025
43AQI
43AQI
19th May 2025
41AQI
41AQI
20th May 2025
61AQI
61AQI
21st May 2025
62AQI
62AQI
22nd May 2025
56AQI
56AQI
23rd May 2025
55AQI
55AQI
24th May 2025
50AQI
50AQI
25th May 2025
29AQI
29AQI
26th May 2025
31AQI
31AQI
27th May 2025
33AQI
33AQI
28th May 2025
30AQI
30AQI
29th May 2025
36AQI
36AQI
30th May 2025
25AQI
25AQI
31st May 2025
21AQI
21AQI
1st June 2025
20AQI
20AQI
2nd June 2025
32AQI
32AQI
3rd June 2025
24AQI
24AQI
4th June 2025
30AQI
30AQI
5th June 2025
34AQI
34AQI
6th June 2025
42AQI
42AQI
7th June 2025
45AQI
45AQI
8th June 2025
56AQI
56AQI
9th June 2025
57AQI
57AQI
10th June 2025
35AQI
35AQI
11th June 2025
33AQI
33AQI
12th June 2025
42AQI
42AQI
13th June 2025
48AQI
48AQI
14th June 2025
36AQI
36AQI
15th June 2025
28AQI
28AQI
16th June 2025
30AQI
30AQI
17th June 2025
35AQI
35AQI
18th June 2025
45AQI
45AQI
19th June 2025
50AQI
50AQI
20th June 2025
54AQI
54AQI
21st June 2025
51AQI
51AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
37AQI
37AQI
24th June 2025
37AQI
37AQI
25th June 2025
37AQI
37AQI
26th June 2025
35AQI
35AQI
27th June 2025
41AQI
41AQI
28th June 2025
42AQI
42AQI
29th June 2025
47AQI
47AQI
30th June 2025
51AQI
51AQI
1st July 2025
55AQI
55AQI
2nd July 2025
46AQI
46AQI
3rd July 2025
48AQI
48AQI
4th July 2025
51AQI
51AQI
5th July 2025
57AQI
57AQI
6th July 2025
54AQI
54AQI
7th July 2025
56AQI
56AQI
8th July 2025
59AQI
59AQI
9th July 2025
59AQI
59AQI
10th July 2025
56AQI
56AQI
11th July 2025
46AQI
46AQI
12th July 2025
46AQI
46AQI
13th July 2025
46AQI
46AQI
14th July 2025
42AQI
42AQI
15th July 2025
35AQI
35AQI
16th July 2025
43AQI
43AQI
17th July 2025
33AQI
33AQI
18th July 2025
35AQI
35AQI
19th July 2025
34AQI
34AQI
20th July 2025
35AQI
35AQI
21st July 2025
38AQI
38AQI
22nd July 2025
40AQI
40AQI
23rd July 2025
42AQI
42AQI
24th July 2025
41AQI
41AQI
25th July 2025
39AQI
39AQI
26th July 2025
38AQI
38AQI
27th July 2025
37AQI
37AQI
28th July 2025
40AQI
40AQI
29th July 2025
49AQI
49AQI
30th July 2025
47AQI
47AQI
31st July 2025
41AQI
41AQI
1st August 2025
43AQI
43AQI
2nd August 2025
44AQI
44AQI
35AQI
36AQI
43AQI
37AQI
38AQI
40AQI
45AQI
44AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202539AQI
29
2
28
25
6
26
4
26
5
24
6
23
8
2
183
31
Highest AQI recorded in
July45AQI
Lowest AQI recorded in
January35AQI
202434AQI
30
1
29
26
5
21
9
31
24
6
31
30
1
27
3
31
28
2
31
339
27
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
July27AQI
202335AQI
27
4
27
1
22
9
23
7
28
3
30
28
3
31
30
31
25
4
25
6
327
37
Highest AQI recorded in
April44AQI
Lowest AQI recorded in
October26AQI
202238AQI
29
2
19
2
21
10
20
10
24
7
26
4
23
2
3
29
30
1
24
6
30
1
278
45
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
August20AQI
202133AQI
30
1
26
2
28
1
20
1
30
1
26
4
29
2
31
30
31
28
2
30
1
339
15
Highest AQI recorded in
June41AQI
Lowest AQI recorded in
August27AQI
202031AQI
13
19
2
18
24
6
30
1
22
8
1
19
29
2
27
3
28
3
229
25
1
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
July22AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
39AQILeast Polluted Year Recorded
2020(Avg.)
31AQIShimadachi's annual 2025 AQI (39) shows an average percentage change of 15.3% (worsened AQI) compared to previous years: 2020 (31), 2021 (33), 2022 (38), 2023 (35), 2024 (34).
