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
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
57AQILowest AQI recorded on
2nd Aug 2022
10AQISame Day Analysis (16th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 23 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Shimadachi, Minamiozuma, Nagano, Japan
AQI
Day
Night
.
4 AM15th Aug 2026
6 PM
3 AM16th Aug 2026
Day time
Avg. Highest Time
2PM15th Aug
31AQI
Avg. Lowest Time
1PM15th Aug
21AQI
Night time
Avg. Highest Time
11PM15th Aug
29AQI
Avg. Lowest Time
1AM16th Aug
21AQI
In the last 24 hours,
Shimadachi's AQI reached its highest point of 31 at 2 PM during the Day, while the lowest point, 21, was recorded at 1 AM during the Night between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Shimadachi, Minamiozuma, Nagano, Japan
JulAug
18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 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
Day
Night
18th Jul 2026294 AMAQI
18th Jul 2026275 AMAQI
18th Jul 2026216 AMAQI
18th Jul 2026217 AMAQI
18th Jul 2026238 AMAQI
18th Jul 2026219 AMAQI
18th Jul 20262110 AMAQI
18th Jul 20262111 AMAQI
18th Jul 20262512 PMAQI
18th Jul 2026271 PMAQI
18th Jul 2026292 PMAQI
18th Jul 2026403 PMAQI
18th Jul 2026454 PMAQI
18th Jul 2026495 PMAQI
18th Jul 2026506 PMAQI
18th Jul 2026447 PMAQI
18th Jul 2026368 PMAQI
18th Jul 2026389 PMAQI
18th Jul 20263610 PMAQI
18th Jul 20263111 PMAQI
19th Jul 20262912 AMAQI
19th Jul 2026311 AMAQI
19th Jul 2026292 AMAQI
19th Jul 2026313 AMAQI
22°C17/27°C
19th Jul 2026294 AMAQI
19th Jul 2026275 AMAQI
19th Jul 2026296 AMAQI
19th Jul 2026297 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026239 AMAQI
19th Jul 20262110 AMAQI
19th Jul 20262311 AMAQI
19th Jul 20262912 PMAQI
19th Jul 2026291 PMAQI
19th Jul 2026402 PMAQI
19th Jul 2026443 PMAQI
19th Jul 2026424 PMAQI
19th Jul 2026465 PMAQI
19th Jul 2026426 PMAQI
19th Jul 2026387 PMAQI
19th Jul 2026348 PMAQI
19th Jul 2026369 PMAQI
19th Jul 20263110 PMAQI
19th Jul 20263111 PMAQI
20th Jul 20263112 AMAQI
20th Jul 2026291 AMAQI
20th Jul 2026292 AMAQI
20th Jul 2026273 AMAQI
23°C17/32°C
20th Jul 2026274 AMAQI
20th Jul 2026315 AMAQI
20th Jul 2026316 AMAQI
20th Jul 2026317 AMAQI
20th Jul 2026278 AMAQI
20th Jul 2026279 AMAQI
20th Jul 20262910 AMAQI
20th Jul 20263411 AMAQI
20th Jul 20263612 PMAQI
20th Jul 2026401 PMAQI
20th Jul 2026332 PMAQI
20th Jul 2026363 PMAQI
20th Jul 2026384 PMAQI
20th Jul 2026385 PMAQI
20th Jul 2026366 PMAQI
20th Jul 2026407 PMAQI
20th Jul 2026368 PMAQI
20th Jul 2026429 PMAQI
20th Jul 20264210 PMAQI
20th Jul 20264011 PMAQI
21st Jul 20264012 AMAQI
21st Jul 2026441 AMAQI
21st Jul 2026422 AMAQI
21st Jul 2026383 AMAQI
24°C17/33°C
21st Jul 2026424 AMAQI
21st Jul 2026445 AMAQI
21st Jul 2026486 AMAQI
21st Jul 2026547 AMAQI
21st Jul 2026548 AMAQI
21st Jul 2026569 AMAQI
21st Jul 20265710 AMAQI
21st Jul 20265111 AMAQI
21st Jul 2026531 PMAQI
21st Jul 2026582 PMAQI
21st Jul 2026573 PMAQI
21st Jul 2026554 PMAQI
21st Jul 2026585 PMAQI
21st Jul 2026596 PMAQI
21st Jul 2026917 PMAQI
21st Jul 2026598 PMAQI
21st Jul 2026629 PMAQI
21st Jul 20265910 PMAQI
21st Jul 20265611 PMAQI
22nd Jul 20265612 AMAQI
22nd Jul 2026541 AMAQI
22nd Jul 2026522 AMAQI
22nd Jul 2026533 AMAQI
24°C17/33°C
22nd Jul 2026524 AMAQI
22nd Jul 2026465 AMAQI
22nd Jul 2026466 AMAQI
22nd Jul 2026467 AMAQI
22nd Jul 2026498 AMAQI
22nd Jul 2026469 AMAQI
22nd Jul 20264810 AMAQI
22nd Jul 20265611 AMAQI
22nd Jul 20265912 PMAQI
22nd Jul 2026681 PMAQI
22nd Jul 2026672 PMAQI
22nd Jul 2026723 PMAQI
22nd Jul 2026734 PMAQI
22nd Jul 2026715 PMAQI
22nd Jul 2026736 PMAQI
22nd Jul 2026677 PMAQI
22nd Jul 2026698 PMAQI
22nd Jul 2026669 PMAQI
22nd Jul 20267610 PMAQI
22nd Jul 20269011 PMAQI
23rd Jul 20269312 AMAQI
23rd Jul 2026931 AMAQI
23rd Jul 2026692 AMAQI
23rd Jul 2026533 AMAQI
25°C17/34°C
23rd Jul 2026514 AMAQI
23rd Jul 2026275 AMAQI
23rd Jul 2026296 AMAQI
23rd Jul 2026407 AMAQI
23rd Jul 2026318 AMAQI
23rd Jul 2026299 AMAQI
23rd Jul 20265410 AMAQI
23rd Jul 20266711 AMAQI
23rd Jul 20266012 PMAQI
23rd Jul 2026541 PMAQI
23rd Jul 2026512 PMAQI
23rd Jul 2026403 PMAQI
23rd Jul 2026344 PMAQI
23rd Jul 2026485 PMAQI
23rd Jul 2026366 PMAQI
23rd Jul 2026407 PMAQI
23rd Jul 2026388 PMAQI
23rd Jul 2026369 PMAQI
23rd Jul 20263810 PMAQI
23rd Jul 20263111 PMAQI
24th Jul 20263612 AMAQI
24th Jul 2026331 AMAQI
24th Jul 2026272 AMAQI
24th Jul 2026253 AMAQI
24°C16/34°C
24th Jul 2026214 AMAQI
24th Jul 2026195 AMAQI
24th Jul 2026216 AMAQI
24th Jul 2026237 AMAQI
24th Jul 2026148 AMAQI
24th Jul 2026169 AMAQI
24th Jul 20262710 AMAQI
24th Jul 20265311 AMAQI
24th Jul 20264812 PMAQI
24th Jul 2026501 PMAQI
24th Jul 2026482 PMAQI
24th Jul 2026363 PMAQI
24th Jul 2026294 PMAQI
24th Jul 2026315 PMAQI
24th Jul 2026256 PMAQI
24th Jul 2026277 PMAQI
24th Jul 2026278 PMAQI
24th Jul 2026239 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20262711 PMAQI
25th Jul 20262712 AMAQI
25th Jul 2026251 AMAQI
25th Jul 2026402 AMAQI
25th Jul 2026383 AMAQI
24°C16/33°C
25th Jul 2026404 AMAQI
25th Jul 2026335 AMAQI
25th Jul 2026406 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026318 AMAQI
25th Jul 2026299 AMAQI
25th Jul 20263610 AMAQI
25th Jul 20264011 AMAQI
25th Jul 20264612 PMAQI
25th Jul 2026401 PMAQI
25th Jul 2026402 PMAQI
25th Jul 2026503 PMAQI
25th Jul 2026464 PMAQI
25th Jul 2026465 PMAQI
25th Jul 2026516 PMAQI
25th Jul 2026487 PMAQI
25th Jul 2026388 PMAQI
25th Jul 2026339 PMAQI
25th Jul 20263310 PMAQI
25th Jul 20263811 PMAQI
26th Jul 20263812 AMAQI
26th Jul 2026361 AMAQI
26th Jul 2026312 AMAQI
26th Jul 2026333 AMAQI
23°C16/33°C
26th Jul 2026274 AMAQI
26th Jul 2026275 AMAQI
26th Jul 2026216 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026299 AMAQI
26th Jul 20262710 AMAQI
26th Jul 20263111 AMAQI
26th Jul 20264012 PMAQI
26th Jul 2026421 PMAQI
26th Jul 2026482 PMAQI
26th Jul 2026483 PMAQI
26th Jul 2026314 PMAQI
26th Jul 2026315 PMAQI
26th Jul 2026276 PMAQI
26th Jul 2026317 PMAQI
26th Jul 2026318 PMAQI
26th Jul 2026299 PMAQI
26th Jul 20262710 PMAQI
26th Jul 20262711 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026292 AMAQI
27th Jul 2026343 AMAQI
22°C16/29°C
27th Jul 2026294 AMAQI
27th Jul 2026345 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026388 AMAQI
27th Jul 2026279 AMAQI
27th Jul 20264010 AMAQI
27th Jul 20262311 AMAQI
27th Jul 20262112 PMAQI
27th Jul 2026211 PMAQI
27th Jul 2026212 PMAQI
27th Jul 2026233 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026216 PMAQI
27th Jul 2026217 PMAQI
27th Jul 2026238 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20262110 PMAQI
27th Jul 20262111 PMAQI
28th Jul 20262912 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026292 AMAQI
28th Jul 2026253 AMAQI
21°C14/30°C
28th Jul 2026294 AMAQI
28th Jul 2026255 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026259 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20262112 PMAQI
28th Jul 2026211 PMAQI
28th Jul 2026402 PMAQI
28th Jul 2026443 PMAQI
28th Jul 2026364 PMAQI
28th Jul 2026275 PMAQI
28th Jul 2026336 PMAQI
28th Jul 2026317 PMAQI
28th Jul 2026278 PMAQI
28th Jul 2026279 PMAQI
28th Jul 20262310 PMAQI
28th Jul 20262311 PMAQI
29th Jul 20264412 AMAQI
29th Jul 2026211 AMAQI
29th Jul 2026272 AMAQI
29th Jul 2026293 AMAQI
19°C14/28°C
29th Jul 2026294 AMAQI
29th Jul 2026255 AMAQI
29th Jul 2026216 AMAQI
29th Jul 2026217 AMAQI
29th Jul 2026278 AMAQI
29th Jul 2026319 AMAQI
29th Jul 20263110 AMAQI
29th Jul 20264011 AMAQI
29th Jul 20262112 PMAQI
29th Jul 2026231 PMAQI
29th Jul 2026212 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026234 PMAQI
29th Jul 2026275 PMAQI
29th Jul 2026276 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026298 PMAQI
29th Jul 2026319 PMAQI
29th Jul 20263310 PMAQI
29th Jul 20262911 PMAQI
30th Jul 20262512 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026212 AMAQI
30th Jul 2026213 AMAQI
20°C14/30°C
30th Jul 2026214 AMAQI
30th Jul 2026215 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026218 AMAQI
30th Jul 2026219 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262312 PMAQI
30th Jul 2026271 PMAQI
30th Jul 2026272 PMAQI
30th Jul 2026273 PMAQI
30th Jul 2026254 PMAQI
30th Jul 2026295 PMAQI
30th Jul 2026296 PMAQI
30th Jul 2026297 PMAQI
30th Jul 2026258 PMAQI
30th Jul 2026389 PMAQI
30th Jul 20263610 PMAQI
30th Jul 20262511 PMAQI
31st Jul 20262912 AMAQI
31st Jul 2026271 AMAQI
31st Jul 2026272 AMAQI
31st Jul 2026253 AMAQI
23°C15/32°C
31st Jul 2026254 AMAQI
31st Jul 2026215 AMAQI
31st Jul 2026216 AMAQI
31st Jul 2026217 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026239 AMAQI
31st Jul 20262510 AMAQI
31st Jul 20263311 AMAQI
31st Jul 20264412 PMAQI
31st Jul 2026531 PMAQI
31st Jul 2026522 PMAQI
31st Jul 2026523 PMAQI
31st Jul 2026514 PMAQI
31st Jul 2026515 PMAQI
31st Jul 2026516 PMAQI
31st Jul 2026557 PMAQI
31st Jul 2026388 PMAQI
31st Jul 2026339 PMAQI
31st Jul 20263410 PMAQI
31st Jul 20263311 PMAQI
1st Aug 20262712 AMAQI
1st Aug 2026291 AMAQI
1st Aug 2026252 AMAQI
1st Aug 2026363 AMAQI
22°C16/32°C
1st Aug 2026334 AMAQI
1st Aug 2026315 AMAQI
1st Aug 2026336 AMAQI
1st Aug 2026337 AMAQI
1st Aug 2026298 AMAQI
1st Aug 2026299 AMAQI
1st Aug 20263110 AMAQI
1st Aug 20263111 AMAQI
1st Aug 20263612 PMAQI
1st Aug 2026361 PMAQI
1st Aug 2026382 PMAQI
1st Aug 2026333 PMAQI
1st Aug 2026334 PMAQI
1st Aug 2026335 PMAQI
1st Aug 2026296 PMAQI
1st Aug 2026337 PMAQI
1st Aug 2026318 PMAQI
1st Aug 2026319 PMAQI
1st Aug 20263110 PMAQI
1st Aug 20263311 PMAQI
2nd Aug 20262912 AMAQI
2nd Aug 2026311 AMAQI
2nd Aug 2026292 AMAQI
2nd Aug 2026293 AMAQI
23°C16/32°C
2nd Aug 2026254 AMAQI
2nd Aug 2026275 AMAQI
2nd Aug 2026256 AMAQI
2nd Aug 2026237 AMAQI
2nd Aug 2026238 AMAQI
2nd Aug 2026239 AMAQI
2nd Aug 20262510 AMAQI
2nd Aug 20262711 AMAQI
2nd Aug 20262912 PMAQI
2nd Aug 2026271 PMAQI
2nd Aug 2026272 PMAQI
2nd Aug 2026313 PMAQI
2nd Aug 2026294 PMAQI
2nd Aug 2026295 PMAQI
2nd Aug 2026316 PMAQI
2nd Aug 2026297 PMAQI
2nd Aug 2026298 PMAQI
2nd Aug 2026299 PMAQI
2nd Aug 20262710 PMAQI
2nd Aug 20262911 PMAQI
3rd Aug 20262912 AMAQI
3rd Aug 2026291 AMAQI
3rd Aug 2026292 AMAQI
3rd Aug 2026273 AMAQI
23°C16/32°C
3rd Aug 2026254 AMAQI
3rd Aug 2026255 AMAQI
3rd Aug 2026276 AMAQI
3rd Aug 2026277 AMAQI
3rd Aug 2026258 AMAQI
3rd Aug 2026259 AMAQI
3rd Aug 20262510 AMAQI
3rd Aug 20262311 AMAQI
3rd Aug 20262512 PMAQI
3rd Aug 2026361 PMAQI
3rd Aug 2026402 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026404 PMAQI
3rd Aug 2026215 PMAQI
3rd Aug 2026216 PMAQI
3rd Aug 2026297 PMAQI
3rd Aug 2026278 PMAQI
3rd Aug 2026299 PMAQI
3rd Aug 20263110 PMAQI
3rd Aug 20262511 PMAQI
4th Aug 20262512 AMAQI
4th Aug 2026211 AMAQI
4th Aug 2026232 AMAQI
4th Aug 2026233 AMAQI
23°C18/29°C
4th Aug 2026214 AMAQI
4th Aug 2026145 AMAQI
4th Aug 2026196 AMAQI
4th Aug 2026257 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262510 AMAQI
4th Aug 20262711 AMAQI
4th Aug 20262112 PMAQI
4th Aug 2026291 PMAQI
4th Aug 2026292 PMAQI
4th Aug 2026273 PMAQI
4th Aug 2026214 PMAQI
4th Aug 2026215 PMAQI
4th Aug 2026236 PMAQI
4th Aug 2026217 PMAQI
4th Aug 2026218 PMAQI
4th Aug 2026239 PMAQI
4th Aug 20262310 PMAQI
4th Aug 20262511 PMAQI
5th Aug 20262512 AMAQI
5th Aug 2026251 AMAQI
5th Aug 2026272 AMAQI
5th Aug 2026273 AMAQI
22°C15/30°C
5th Aug 2026294 AMAQI
5th Aug 2026295 AMAQI
5th Aug 2026236 AMAQI
5th Aug 2026237 AMAQI
5th Aug 2026238 AMAQI
5th Aug 2026259 AMAQI
5th Aug 20263410 AMAQI
5th Aug 20263211 AMAQI
5th Aug 20262512 PMAQI
5th Aug 2026211 PMAQI
5th Aug 2026232 PMAQI
5th Aug 2026233 PMAQI
5th Aug 2026234 PMAQI
5th Aug 2026235 PMAQI
5th Aug 2026256 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026238 PMAQI
5th Aug 2026239 PMAQI
5th Aug 20262310 PMAQI
5th Aug 20262511 PMAQI
6th Aug 20262912 AMAQI
6th Aug 2026271 AMAQI
6th Aug 2026292 AMAQI
6th Aug 2026293 AMAQI
22°C13/33°C
6th Aug 2026294 AMAQI
6th Aug 2026275 AMAQI
6th Aug 2026276 AMAQI
6th Aug 2026297 AMAQI
6th Aug 2026298 AMAQI
6th Aug 2026299 AMAQI
6th Aug 20262710 AMAQI
6th Aug 20262711 AMAQI
6th Aug 20262712 PMAQI
6th Aug 2026291 PMAQI
6th Aug 2026292 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026234 PMAQI
6th Aug 2026235 PMAQI
6th Aug 2026276 PMAQI
6th Aug 2026237 PMAQI
6th Aug 2026238 PMAQI
6th Aug 2026239 PMAQI
6th Aug 20262110 PMAQI
6th Aug 20262311 PMAQI
7th Aug 20262112 AMAQI
7th Aug 2026211 AMAQI
7th Aug 2026272 AMAQI
7th Aug 2026273 AMAQI
22°C15/33°C
7th Aug 2026334 AMAQI
7th Aug 2026275 AMAQI
7th Aug 2026276 AMAQI
7th Aug 2026367 AMAQI
7th Aug 2026338 AMAQI
7th Aug 2026389 AMAQI
7th Aug 20263810 AMAQI
7th Aug 20263811 AMAQI
7th Aug 20263812 PMAQI
7th Aug 2026441 PMAQI
7th Aug 2026332 PMAQI
7th Aug 2026293 PMAQI
7th Aug 2026314 PMAQI
7th Aug 2026255 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026258 PMAQI
7th Aug 2026319 PMAQI
7th Aug 20263310 PMAQI
7th Aug 20263311 PMAQI
8th Aug 20262912 AMAQI
8th Aug 2026291 AMAQI
8th Aug 2026252 AMAQI
8th Aug 2026273 AMAQI
22°C16/32°C
8th Aug 2026254 AMAQI
8th Aug 2026275 AMAQI
8th Aug 2026256 AMAQI
8th Aug 2026237 AMAQI
8th Aug 2026218 AMAQI
8th Aug 2026299 AMAQI
8th Aug 20262910 AMAQI
8th Aug 20263111 AMAQI
8th Aug 20262312 PMAQI
8th Aug 2026251 PMAQI
8th Aug 2026232 PMAQI
8th Aug 2026213 PMAQI
8th Aug 2026254 PMAQI
8th Aug 2026235 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026217 PMAQI
8th Aug 2026298 PMAQI
8th Aug 2026299 PMAQI
8th Aug 20262910 PMAQI
8th Aug 20262911 PMAQI
9th Aug 20262712 AMAQI
9th Aug 2026251 AMAQI
9th Aug 2026252 AMAQI
9th Aug 2026253 AMAQI
22°C16/32°C
9th Aug 2026234 AMAQI
9th Aug 2026295 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026298 AMAQI
9th Aug 2026219 AMAQI
9th Aug 20262710 AMAQI
9th Aug 20262511 AMAQI
9th Aug 20262712 PMAQI
9th Aug 2026251 PMAQI
9th Aug 2026212 PMAQI
9th Aug 2026273 PMAQI
9th Aug 2026274 PMAQI
9th Aug 2026295 PMAQI
9th Aug 2026216 PMAQI
9th Aug 2026257 PMAQI
9th Aug 2026298 PMAQI
9th Aug 2026219 PMAQI
9th Aug 20262310 PMAQI
9th Aug 20262511 PMAQI
10th Aug 20262112 AMAQI
10th Aug 2026271 AMAQI
10th Aug 2026252 AMAQI
10th Aug 2026253 AMAQI
21°C17/27°C
10th Aug 2026214 AMAQI
10th Aug 2026215 AMAQI
10th Aug 2026216 AMAQI
10th Aug 2026257 AMAQI
10th Aug 2026258 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20262510 AMAQI
10th Aug 20262511 AMAQI
10th Aug 20262912 PMAQI
10th Aug 2026321 PMAQI
10th Aug 2026252 PMAQI
10th Aug 2026233 PMAQI
10th Aug 2026254 PMAQI
10th Aug 2026295 PMAQI
10th Aug 2026316 PMAQI
10th Aug 2026297 PMAQI
10th Aug 2026298 PMAQI
10th Aug 2026219 PMAQI
10th Aug 20262910 PMAQI
10th Aug 20262911 PMAQI
11th Aug 20262712 AMAQI
11th Aug 2026231 AMAQI
11th Aug 2026272 AMAQI
11th Aug 2026233 AMAQI
22°C14/29°C
11th Aug 2026274 AMAQI
11th Aug 2026275 AMAQI
11th Aug 2026256 AMAQI
11th Aug 2026297 AMAQI
11th Aug 2026258 AMAQI
11th Aug 2026349 AMAQI
11th Aug 20263210 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262912 PMAQI
11th Aug 2026231 PMAQI
11th Aug 2026272 PMAQI
11th Aug 2026253 PMAQI
11th Aug 2026274 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026296 PMAQI
11th Aug 2026217 PMAQI
11th Aug 2026218 PMAQI
11th Aug 2026259 PMAQI
11th Aug 20262510 PMAQI
11th Aug 20262911 PMAQI
12th Aug 20262112 AMAQI
12th Aug 2026251 AMAQI
12th Aug 2026252 AMAQI
12th Aug 2026233 AMAQI
19°C12/24°C
12th Aug 2026214 AMAQI
12th Aug 2026195 AMAQI
12th Aug 2026236 AMAQI
12th Aug 2026197 AMAQI
12th Aug 2026218 AMAQI
12th Aug 2026219 AMAQI
12th Aug 20261910 AMAQI
12th Aug 20261911 AMAQI
12th Aug 20261412 PMAQI
12th Aug 2026171 PMAQI
12th Aug 2026142 PMAQI
12th Aug 2026213 PMAQI
12th Aug 2026274 PMAQI
12th Aug 2026345 PMAQI
12th Aug 2026346 PMAQI
12th Aug 2026277 PMAQI
12th Aug 2026348 PMAQI
12th Aug 2026329 PMAQI
12th Aug 20262710 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20262912 AMAQI
13th Aug 2026311 AMAQI
13th Aug 2026272 AMAQI
13th Aug 2026253 AMAQI
18°C14/22°C
13th Aug 2026214 AMAQI
13th Aug 2026215 AMAQI
13th Aug 2026236 AMAQI
13th Aug 2026257 AMAQI
13th Aug 2026258 AMAQI
13th Aug 2026259 AMAQI
13th Aug 20262710 AMAQI
13th Aug 20262711 AMAQI
13th Aug 20262312 PMAQI
13th Aug 2026231 PMAQI
13th Aug 2026252 PMAQI
13th Aug 2026253 PMAQI
13th Aug 2026274 PMAQI
13th Aug 2026275 PMAQI
13th Aug 2026256 PMAQI
13th Aug 2026277 PMAQI
13th Aug 2026258 PMAQI
13th Aug 2026259 PMAQI
13th Aug 20262110 PMAQI
13th Aug 20262111 PMAQI
14th Aug 20261912 AMAQI
14th Aug 2026211 AMAQI
14th Aug 2026382 AMAQI
14th Aug 2026363 AMAQI
20°C13/29°C
14th Aug 2026364 AMAQI
14th Aug 2026405 AMAQI
14th Aug 2026406 AMAQI
14th Aug 2026387 AMAQI
14th Aug 2026368 AMAQI
14th Aug 2026369 AMAQI
14th Aug 20264010 AMAQI
14th Aug 20264211 AMAQI
14th Aug 20264012 PMAQI
14th Aug 2026311 PMAQI
14th Aug 2026252 PMAQI
14th Aug 2026253 PMAQI
14th Aug 2026274 PMAQI
14th Aug 2026255 PMAQI
14th Aug 2026236 PMAQI
14th Aug 2026257 PMAQI
14th Aug 2026238 PMAQI
14th Aug 2026239 PMAQI
14th Aug 20262310 PMAQI
14th Aug 20262511 PMAQI
15th Aug 20262312 AMAQI
15th Aug 2026251 AMAQI
15th Aug 2026252 AMAQI
15th Aug 2026253 AMAQI
21°C16/27°C
15th Aug 2026254 AMAQI
15th Aug 2026255 AMAQI
15th Aug 2026236 AMAQI
15th Aug 2026217 AMAQI
15th Aug 2026218 AMAQI
15th Aug 2026219 AMAQI
15th Aug 20262510 AMAQI
15th Aug 20262511 AMAQI
15th Aug 20262112 PMAQI
15th Aug 2026211 PMAQI
15th Aug 2026312 PMAQI
15th Aug 2026273 PMAQI
15th Aug 2026314 PMAQI
15th Aug 2026275 PMAQI
15th Aug 2026256 PMAQI
15th Aug 2026257 PMAQI
15th Aug 2026258 PMAQI
15th Aug 2026259 PMAQI
15th Aug 20262510 PMAQI
15th Aug 20262911 PMAQI
16th Aug 20262512 AMAQI
16th Aug 2026211 AMAQI
16th Aug 2026272 AMAQI
16th Aug 2026253 AMAQI
21°C15/27°C
16th Aug 2026234 AMAQI
4 AM16th Aug 2026235 AMAQI
16th Aug 2026196 AMAQI
16th Aug 2026257 AMAQI
16th Aug 2026258 AMAQI
16th Aug 2026299 AMAQI
16th Aug 20262510 AMAQI
16th Aug 20262511 AMAQI
11 AM16th Aug 20262112 PMAQI
16th Aug 2026211 PMAQI
16th Aug 2026232 PMAQI
16th Aug 2026193 PMAQI
16th Aug 2026214 PMAQI
16th Aug 2026195 PMAQI
16th Aug 2026256 PMAQI
6 PM16th Aug 2026237 PMAQI
16th Aug 2026218 PMAQI
16th Aug 2026219 PMAQI
16th Aug 20262510 PMAQI
16th Aug 20262511 PMAQI
11 PM3 AM
20°C16/26°C
Day time
Avg. Highest Time
1 PM - 6 PM
33AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
5 AM - 6 AM
27AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 6 PM (Avg. 33), while the lowest AQI was between 5 AM to 6 AM (Avg. 27).
Night time
Avg. Highest Time
7 PM
33AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM - 3 AM
30AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 33), while the lowest AQI was between 1 AM to 3 AM (Avg. 30).
2026 Days Vs Air Quality
Shimadachi, Minamiozuma, Nagano, Japan
2026
83%
190
17%
38
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Good
190 DaysModerate
38 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 228 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 2026
AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
22AQI (US)
22AQI (US)
2nd January 2026
20AQI (US)
20AQI (US)
3rd January 2026
31AQI (US)
31AQI (US)
4th January 2026
33AQI (US)
33AQI (US)
5th January 2026
30AQI (US)
30AQI (US)
6th January 2026
23AQI (US)
23AQI (US)
7th January 2026
36AQI (US)
36AQI (US)
8th January 2026
27AQI (US)
27AQI (US)
9th January 2026
27AQI (US)
27AQI (US)
10th January 2026
43AQI (US)
43AQI (US)
11th January 2026
31AQI (US)
31AQI (US)
12th January 2026
19AQI (US)
19AQI (US)
13th January 2026
25AQI (US)
25AQI (US)
14th January 2026
12AQI (US)
12AQI (US)
15th January 2026
37AQI (US)
37AQI (US)
16th January 2026
42AQI (US)
42AQI (US)
17th January 2026
53AQI (US)
53AQI (US)
18th January 2026
31AQI (US)
31AQI (US)
19th January 2026
54AQI (US)
54AQI (US)
20th January 2026
31AQI (US)
31AQI (US)
21st January 2026
25AQI (US)
25AQI (US)
22nd January 2026
21AQI (US)
21AQI (US)
23rd January 2026
27AQI (US)
27AQI (US)
24th January 2026
38AQI (US)
38AQI (US)
25th January 2026
40AQI (US)
40AQI (US)
26th January 2026
24AQI (US)
24AQI (US)
27th January 2026
40AQI (US)
40AQI (US)
28th January 2026
26AQI (US)
26AQI (US)
29th January 2026
29AQI (US)
29AQI (US)
30th January 2026
41AQI (US)
41AQI (US)
31st January 2026
20AQI (US)
20AQI (US)
1st February 2026
31AQI (US)
31AQI (US)
2nd February 2026
42AQI (US)
42AQI (US)
3rd February 2026
29AQI (US)
29AQI (US)
4th February 2026
28AQI (US)
28AQI (US)
5th February 2026
49AQI (US)
49AQI (US)
6th February 2026
50AQI (US)
50AQI (US)
7th February 2026
12AQI (US)
12AQI (US)
8th February 2026
10AQI (US)
10AQI (US)
9th February 2026
30AQI (US)
30AQI (US)
10th February 2026
35AQI (US)
35AQI (US)
11th February 2026
39AQI (US)
39AQI (US)
12th February 2026
48AQI (US)
48AQI (US)
13th February 2026
64AQI (US)
64AQI (US)
14th February 2026
59AQI (US)
59AQI (US)
15th February 2026
56AQI (US)
56AQI (US)
16th February 2026
53AQI (US)
53AQI (US)
17th February 2026
23AQI (US)
23AQI (US)
18th February 2026
23AQI (US)
23AQI (US)
19th February 2026
16AQI (US)
16AQI (US)
20th February 2026
29AQI (US)
29AQI (US)
21st February 2026
52AQI (US)
52AQI (US)
22nd February 2026
40AQI (US)
40AQI (US)
23rd February 2026
34AQI (US)
34AQI (US)
24th February 2026
43AQI (US)
43AQI (US)
25th February 2026
22AQI (US)
22AQI (US)
26th February 2026
13AQI (US)
13AQI (US)
27th February 2026
20AQI (US)
20AQI (US)
28th February 2026
14AQI (US)
14AQI (US)
1st March 2026
20AQI (US)
20AQI (US)
2nd March 2026
67AQI (US)
67AQI (US)
3rd March 2026
43AQI (US)
43AQI (US)
4th March 2026
52AQI (US)
52AQI (US)
5th March 2026
58AQI (US)
58AQI (US)
6th March 2026
55AQI (US)
55AQI (US)
7th March 2026
45AQI (US)
45AQI (US)
8th March 2026
40AQI (US)
40AQI (US)
9th March 2026
49AQI (US)
49AQI (US)
10th March 2026
59AQI (US)
59AQI (US)
11th March 2026
58AQI (US)
58AQI (US)
12th March 2026
66AQI (US)
66AQI (US)
13th March 2026
37AQI (US)
37AQI (US)
14th March 2026
46AQI (US)
46AQI (US)
15th March 2026
59AQI (US)
59AQI (US)
16th March 2026
56AQI (US)
56AQI (US)
17th March 2026
53AQI (US)
53AQI (US)
18th March 2026
56AQI (US)
56AQI (US)
19th March 2026
24AQI (US)
24AQI (US)
20th March 2026
54AQI (US)
54AQI (US)
21st March 2026
51AQI (US)
51AQI (US)
22nd March 2026
49AQI (US)
49AQI (US)
23rd March 2026
51AQI (US)
51AQI (US)
24th March 2026
52AQI (US)
52AQI (US)
25th March 2026
61AQI (US)
61AQI (US)
26th March 2026
13AQI (US)
13AQI (US)
27th March 2026
20AQI (US)
20AQI (US)
28th March 2026
57AQI (US)
57AQI (US)
29th March 2026
58AQI (US)
58AQI (US)
30th March 2026
51AQI (US)
51AQI (US)
31st March 2026
13AQI (US)
13AQI (US)
1st April 2026
13AQI (US)
13AQI (US)
2nd April 2026
38AQI (US)
38AQI (US)
3rd April 2026
52AQI (US)
52AQI (US)
4th April 2026
41AQI (US)
41AQI (US)
5th April 2026
15AQI (US)
15AQI (US)
6th April 2026
40AQI (US)
40AQI (US)
7th April 2026
34AQI (US)
34AQI (US)
8th April 2026
25AQI (US)
25AQI (US)
9th April 2026
24AQI (US)
24AQI (US)
10th April 2026
45AQI (US)
45AQI (US)
11th April 2026
35AQI (US)
35AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
28AQI (US)
28AQI (US)
14th April 2026
42AQI (US)
42AQI (US)
15th April 2026
24AQI (US)
24AQI (US)
16th April 2026
25AQI (US)
25AQI (US)
17th April 2026
36AQI (US)
36AQI (US)
18th April 2026
35AQI (US)
35AQI (US)
19th April 2026
33AQI (US)
33AQI (US)
20th April 2026
35AQI (US)
35AQI (US)
21st April 2026
34AQI (US)
34AQI (US)
22nd April 2026
42AQI (US)
42AQI (US)
23rd April 2026
25AQI (US)
25AQI (US)
24th April 2026
18AQI (US)
18AQI (US)
25th April 2026
33AQI (US)
33AQI (US)
26th April 2026
50AQI (US)
50AQI (US)
27th April 2026
48AQI (US)
48AQI (US)
28th April 2026
42AQI (US)
42AQI (US)
29th April 2026
38AQI (US)
38AQI (US)
30th April 2026
29AQI (US)
29AQI (US)
1st May 2026
24AQI (US)
24AQI (US)
2nd May 2026
44AQI (US)
44AQI (US)
3rd May 2026
50AQI (US)
50AQI (US)
4th May 2026
21AQI (US)
21AQI (US)
5th May 2026
20AQI (US)
20AQI (US)
6th May 2026
26AQI (US)
26AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
27AQI (US)
27AQI (US)
9th May 2026
25AQI (US)
25AQI (US)
10th May 2026
28AQI (US)
28AQI (US)
11th May 2026
30AQI (US)
30AQI (US)
12th May 2026
36AQI (US)
36AQI (US)
13th May 2026
37AQI (US)
37AQI (US)
14th May 2026
32AQI (US)
32AQI (US)
15th May 2026
33AQI (US)
33AQI (US)
16th May 2026
84AQI (US)
84AQI (US)
17th May 2026
68AQI (US)
68AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
48AQI (US)
48AQI (US)
20th May 2026
61AQI (US)
61AQI (US)
21st May 2026
60AQI (US)
60AQI (US)
22nd May 2026
61AQI (US)
61AQI (US)
23rd May 2026
55AQI (US)
55AQI (US)
24th May 2026
60AQI (US)
60AQI (US)
25th May 2026
49AQI (US)
49AQI (US)
26th May 2026
40AQI (US)
40AQI (US)
27th May 2026
25AQI (US)
25AQI (US)
28th May 2026
25AQI (US)
25AQI (US)
29th May 2026
23AQI (US)
23AQI (US)
30th May 2026
22AQI (US)
22AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
31AQI (US)
31AQI (US)
2nd June 2026
27AQI (US)
27AQI (US)
3rd June 2026
25AQI (US)
25AQI (US)
4th June 2026
22AQI (US)
22AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
22AQI (US)
22AQI (US)
7th June 2026
21AQI (US)
21AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
22AQI (US)
22AQI (US)
10th June 2026
21AQI (US)
21AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
24AQI (US)
24AQI (US)
13th June 2026
25AQI (US)
25AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
22AQI (US)
22AQI (US)
16th June 2026
25AQI (US)
25AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
26AQI (US)
26AQI (US)
19th June 2026
28AQI (US)
28AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
16AQI (US)
16AQI (US)
22nd June 2026
17AQI (US)
17AQI (US)
23rd June 2026
19AQI (US)
19AQI (US)
24th June 2026
20AQI (US)
20AQI (US)
25th June 2026
25AQI (US)
25AQI (US)
26th June 2026
27AQI (US)
27AQI (US)
27th June 2026
27AQI (US)
27AQI (US)
28th June 2026
25AQI (US)
25AQI (US)
29th June 2026
28AQI (US)
28AQI (US)
30th June 2026
26AQI (US)
26AQI (US)
1st July 2026
32AQI (US)
32AQI (US)
2nd July 2026
19AQI (US)
19AQI (US)
3rd July 2026
15AQI (US)
15AQI (US)
4th July 2026
25AQI (US)
25AQI (US)
5th July 2026
21AQI (US)
21AQI (US)
6th July 2026
13AQI (US)
13AQI (US)
7th July 2026
18AQI (US)
18AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
26AQI (US)
26AQI (US)
10th July 2026
29AQI (US)
29AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
28AQI (US)
28AQI (US)
13th July 2026
28AQI (US)
28AQI (US)
14th July 2026
28AQI (US)
28AQI (US)
15th July 2026
40AQI (US)
40AQI (US)
16th July 2026
56AQI (US)
56AQI (US)
17th July 2026
43AQI (US)
43AQI (US)
18th July 2026
31AQI (US)
31AQI (US)
19th July 2026
32AQI (US)
32AQI (US)
20th July 2026
34AQI (US)
34AQI (US)
21st July 2026
54AQI (US)
54AQI (US)
22nd July 2026
61AQI (US)
61AQI (US)
23rd July 2026
48AQI (US)
48AQI (US)
24th July 2026
30AQI (US)
30AQI (US)
25th July 2026
38AQI (US)
38AQI (US)
26th July 2026
32AQI (US)
32AQI (US)
27th July 2026
26AQI (US)
26AQI (US)
28th July 2026
28AQI (US)
28AQI (US)
29th July 2026
27AQI (US)
27AQI (US)
30th July 2026
25AQI (US)
25AQI (US)
31st July 2026
35AQI (US)
35AQI (US)
1st August 2026
32AQI (US)
32AQI (US)
2nd August 2026
28AQI (US)
28AQI (US)
3rd August 2026
28AQI (US)
28AQI (US)
4th August 2026
23AQI (US)
23AQI (US)
5th August 2026
25AQI (US)
25AQI (US)
6th August 2026
26AQI (US)
26AQI (US)
7th August 2026
31AQI (US)
31AQI (US)
8th August 2026
26AQI (US)
26AQI (US)
9th August 2026
25AQI (US)
25AQI (US)
10th August 2026
26AQI (US)
26AQI (US)
11th August 2026
26AQI (US)
26AQI (US)
12th August 2026
23AQI (US)
23AQI (US)
13th August 2026
25AQI (US)
25AQI (US)
14th August 2026
31AQI (US)
31AQI (US)
15th August 2026
25AQI (US)
25AQI (US)
16th August 2026
23AQI (US)
23AQI (US)
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
31AQI (US)
34AQI (US)
48AQI (US)
34AQI (US)
39AQI (US)
24AQI (US)
32AQI (US)
26AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202634AQI (US)
29
2
23
5
12
19
29
1
23
8
30
28
3
16
190
38
Highest AQI (US) recorded in
March48AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202541AQI (US)
29
2
28
25
6
26
4
26
5
24
6
23
8
22
9
30
24
7
18
12
25
6
300
65
Highest AQI (US) recorded in
August47AQI (US)
Lowest AQI (US) recorded in
September35AQI (US)
202434AQI (US)
30
1
29
26
5
21
9
31
24
6
31
30
1
27
3
31
28
2
31
339
27
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
October27AQI (US)
202335AQI (US)
27
4
27
1
22
9
23
7
28
3
30
28
3
31
30
31
25
4
25
6
327
37
Highest AQI (US) recorded in
April44AQI (US)
Lowest AQI (US) recorded in
October26AQI (US)
202238AQI (US)
28
2
19
2
21
10
20
10
24
7
26
4
23
2
3
29
30
1
24
6
30
1
277
45
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
August20AQI (US)
202133AQI (US)
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 (US) recorded in
June41AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202031AQI (US)
13
19
2
18
24
6
30
1
22
8
1
19
29
2
27
3
28
3
229
25
1
Highest AQI (US) recorded in
August47AQI (US)
Lowest AQI (US) recorded in
September22AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
41AQI (US)Least Polluted Year Recorded
2020(Avg.)
31AQI (US)Shimadachi's annual 2026 AQI (US) (34) shows an average percentage change of -2.9% (improved AQI (US)) compared to previous years: 2020 (31), 2021 (33), 2022 (38), 2023 (35), 2024 (34), 2025 (41).
