Iwamurada, Saku, 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
Iwamurada, Saku, Nagano, Japan
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2024
56AQILowest AQI recorded on
29th Aug 2024
21AQISame Day Analysis (16th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 3rd highest AQI at 23 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Iwamurada, Saku, Nagano, Japan
AQI
Day
Night
.
4 AM15th Aug 2026
6 PM
3 AM16th Aug 2026
Day time
Avg. Highest Time
6AM15th Aug
40AQI
Avg. Lowest Time
6PM15th Aug
25AQI
Night time
Avg. Highest Time
4AM15th Aug
36AQI
Avg. Lowest Time
12AM16th Aug
21AQI
In the last 24 hours,
Iwamurada's AQI reached its highest point of 40 at 6 AM during the Day, while the lowest point, 21, was recorded at 12 AM during the Night between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Iwamurada, Saku, 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 2026424 AMAQI
18th Jul 2026325 AMAQI
18th Jul 2026426 AMAQI
18th Jul 2026367 AMAQI
18th Jul 2026218 AMAQI
18th Jul 2026449 AMAQI
18th Jul 20262110 AMAQI
18th Jul 20262711 AMAQI
18th Jul 20262712 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026292 PMAQI
18th Jul 2026443 PMAQI
18th Jul 2026534 PMAQI
18th Jul 2026595 PMAQI
18th Jul 2026556 PMAQI
18th Jul 2026547 PMAQI
18th Jul 2026478 PMAQI
18th Jul 2026409 PMAQI
18th Jul 20263810 PMAQI
18th Jul 20263211 PMAQI
19th Jul 20262912 AMAQI
19th Jul 2026291 AMAQI
19th Jul 2026312 AMAQI
19th Jul 2026313 AMAQI
21°C19/23°C
19th Jul 2026344 AMAQI
19th Jul 2026295 AMAQI
19th Jul 2026296 AMAQI
19th Jul 2026297 AMAQI
19th Jul 2026318 AMAQI
19th Jul 2026349 AMAQI
19th Jul 20262510 AMAQI
19th Jul 20262711 AMAQI
19th Jul 20264212 PMAQI
19th Jul 2026501 PMAQI
19th Jul 2026522 PMAQI
19th Jul 2026533 PMAQI
19th Jul 2026554 PMAQI
19th Jul 2026605 PMAQI
19th Jul 2026546 PMAQI
19th Jul 2026527 PMAQI
19th Jul 2026428 PMAQI
19th Jul 2026409 PMAQI
19th Jul 20264410 PMAQI
19th Jul 20263811 PMAQI
20th Jul 20263212 AMAQI
20th Jul 2026271 AMAQI
20th Jul 2026252 AMAQI
20th Jul 2026293 AMAQI
23°C19/30°C
20th Jul 2026254 AMAQI
20th Jul 2026255 AMAQI
20th Jul 2026366 AMAQI
20th Jul 2026317 AMAQI
20th Jul 2026278 AMAQI
20th Jul 2026319 AMAQI
20th Jul 20263310 AMAQI
20th Jul 20263111 AMAQI
20th Jul 20264012 PMAQI
20th Jul 2026461 PMAQI
20th Jul 2026252 PMAQI
20th Jul 2026273 PMAQI
20th Jul 2026244 PMAQI
20th Jul 2026455 PMAQI
20th Jul 2026386 PMAQI
20th Jul 2026387 PMAQI
20th Jul 2026308 PMAQI
20th Jul 2026349 PMAQI
20th Jul 20263410 PMAQI
20th Jul 20263611 PMAQI
21st Jul 20262412 AMAQI
21st Jul 2026321 AMAQI
21st Jul 2026382 AMAQI
21st Jul 2026343 AMAQI
24°C18/31°C
21st Jul 2026364 AMAQI
21st Jul 2026465 AMAQI
21st Jul 2026466 AMAQI
21st Jul 2026607 AMAQI
21st Jul 2026628 AMAQI
21st Jul 2026659 AMAQI
21st Jul 20266210 AMAQI
21st Jul 20265511 AMAQI
21st Jul 2026591 PMAQI
21st Jul 2026702 PMAQI
21st Jul 2026663 PMAQI
21st Jul 2026694 PMAQI
21st Jul 2026695 PMAQI
21st Jul 2026686 PMAQI
21st Jul 2026967 PMAQI
21st Jul 2026678 PMAQI
21st Jul 2026669 PMAQI
21st Jul 20266510 PMAQI
21st Jul 20265911 PMAQI
22nd Jul 20265712 AMAQI
22nd Jul 2026551 AMAQI
22nd Jul 2026582 AMAQI
22nd Jul 2026573 AMAQI
24°C18/32°C
22nd Jul 2026564 AMAQI
22nd Jul 2026465 AMAQI
22nd Jul 2026426 AMAQI
22nd Jul 2026427 AMAQI
22nd Jul 2026428 AMAQI
22nd Jul 2026429 AMAQI
22nd Jul 20264810 AMAQI
22nd Jul 20265911 AMAQI
22nd Jul 20266912 PMAQI
22nd Jul 2026821 PMAQI
22nd Jul 2026842 PMAQI
22nd Jul 2026823 PMAQI
22nd Jul 2026834 PMAQI
22nd Jul 2026835 PMAQI
22nd Jul 2026806 PMAQI
22nd Jul 2026837 PMAQI
22nd Jul 2026788 PMAQI
22nd Jul 2026729 PMAQI
22nd Jul 20267610 PMAQI
22nd Jul 20267911 PMAQI
23rd Jul 20267812 AMAQI
23rd Jul 2026821 AMAQI
23rd Jul 2026702 AMAQI
23rd Jul 2026723 AMAQI
24°C17/34°C
23rd Jul 2026694 AMAQI
23rd Jul 2026645 AMAQI
23rd Jul 2026646 AMAQI
23rd Jul 2026627 AMAQI
23rd Jul 2026608 AMAQI
23rd Jul 2026609 AMAQI
23rd Jul 20265810 AMAQI
23rd Jul 20266811 AMAQI
23rd Jul 20266912 PMAQI
23rd Jul 2026671 PMAQI
23rd Jul 2026652 PMAQI
23rd Jul 2026623 PMAQI
23rd Jul 2026644 PMAQI
23rd Jul 2026705 PMAQI
23rd Jul 2026686 PMAQI
23rd Jul 2026627 PMAQI
23rd Jul 2026608 PMAQI
23rd Jul 2026609 PMAQI
23rd Jul 20266010 PMAQI
23rd Jul 20265611 PMAQI
24th Jul 20265312 AMAQI
24th Jul 2026461 AMAQI
24th Jul 2026442 AMAQI
24th Jul 2026443 AMAQI
25°C19/33°C
24th Jul 2026404 AMAQI
24th Jul 2026425 AMAQI
24th Jul 2026426 AMAQI
24th Jul 2026447 AMAQI
24th Jul 2026478 AMAQI
24th Jul 2026489 AMAQI
24th Jul 20264010 AMAQI
24th Jul 20265211 AMAQI
24th Jul 20266412 PMAQI
24th Jul 2026621 PMAQI
24th Jul 2026672 PMAQI
24th Jul 2026663 PMAQI
24th Jul 2026574 PMAQI
24th Jul 2026625 PMAQI
24th Jul 2026646 PMAQI
24th Jul 2026627 PMAQI
24th Jul 2026568 PMAQI
24th Jul 2026589 PMAQI
24th Jul 20265610 PMAQI
24th Jul 20265511 PMAQI
25th Jul 20265212 AMAQI
25th Jul 2026501 AMAQI
25th Jul 2026462 AMAQI
25th Jul 2026443 AMAQI
23°C18/32°C
25th Jul 2026444 AMAQI
25th Jul 2026425 AMAQI
25th Jul 2026486 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026448 AMAQI
25th Jul 2026389 AMAQI
25th Jul 20264010 AMAQI
25th Jul 20264611 AMAQI
25th Jul 20265712 PMAQI
25th Jul 2026571 PMAQI
25th Jul 2026582 PMAQI
25th Jul 2026723 PMAQI
25th Jul 2026624 PMAQI
25th Jul 2026605 PMAQI
25th Jul 2026646 PMAQI
25th Jul 2026527 PMAQI
25th Jul 2026408 PMAQI
25th Jul 2026389 PMAQI
25th Jul 20264610 PMAQI
25th Jul 20265311 PMAQI
26th Jul 20265312 AMAQI
26th Jul 2026461 AMAQI
26th Jul 2026422 AMAQI
26th Jul 2026423 AMAQI
23°C17/32°C
26th Jul 2026364 AMAQI
26th Jul 2026365 AMAQI
26th Jul 2026366 AMAQI
26th Jul 2026367 AMAQI
26th Jul 2026368 AMAQI
26th Jul 2026339 AMAQI
26th Jul 20263810 AMAQI
26th Jul 20263611 AMAQI
26th Jul 20265212 PMAQI
26th Jul 2026571 PMAQI
26th Jul 2026602 PMAQI
26th Jul 2026603 PMAQI
26th Jul 2026484 PMAQI
26th Jul 2026495 PMAQI
26th Jul 2026426 PMAQI
26th Jul 2026527 PMAQI
26th Jul 2026508 PMAQI
26th Jul 2026509 PMAQI
26th Jul 20264810 PMAQI
26th Jul 20264611 PMAQI
27th Jul 20263112 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026232 AMAQI
27th Jul 2026213 AMAQI
22°C17/28°C
27th Jul 2026424 AMAQI
27th Jul 2026505 AMAQI
27th Jul 2026486 AMAQI
27th Jul 2026467 AMAQI
27th Jul 2026388 AMAQI
27th Jul 2026529 AMAQI
27th Jul 20262110 AMAQI
27th Jul 20262311 AMAQI
27th Jul 20263612 PMAQI
27th Jul 2026341 PMAQI
27th Jul 2026252 PMAQI
27th Jul 2026273 PMAQI
27th Jul 2026324 PMAQI
27th Jul 2026235 PMAQI
27th Jul 2026336 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026338 PMAQI
27th Jul 2026389 PMAQI
27th Jul 20263310 PMAQI
27th Jul 20263111 PMAQI
28th Jul 20262712 AMAQI
28th Jul 2026261 AMAQI
28th Jul 2026272 AMAQI
28th Jul 2026293 AMAQI
21°C15/27°C
28th Jul 2026234 AMAQI
28th Jul 2026385 AMAQI
28th Jul 2026236 AMAQI
28th Jul 2026387 AMAQI
28th Jul 2026388 AMAQI
28th Jul 2026259 AMAQI
28th Jul 20263210 AMAQI
28th Jul 20264011 AMAQI
28th Jul 20263812 PMAQI
28th Jul 2026361 PMAQI
28th Jul 2026592 PMAQI
28th Jul 2026583 PMAQI
28th Jul 2026544 PMAQI
28th Jul 2026465 PMAQI
28th Jul 2026406 PMAQI
28th Jul 2026367 PMAQI
28th Jul 2026368 PMAQI
28th Jul 2026469 PMAQI
28th Jul 20266210 PMAQI
28th Jul 20264211 PMAQI
29th Jul 20266412 AMAQI
29th Jul 2026381 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026213 AMAQI
19°C16/24°C
29th Jul 2026214 AMAQI
29th Jul 2026255 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026278 AMAQI
29th Jul 2026259 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20262511 AMAQI
29th Jul 20263112 PMAQI
29th Jul 2026401 PMAQI
29th Jul 2026362 PMAQI
29th Jul 2026383 PMAQI
29th Jul 2026334 PMAQI
29th Jul 2026465 PMAQI
29th Jul 2026426 PMAQI
29th Jul 2026447 PMAQI
29th Jul 2026518 PMAQI
29th Jul 2026489 PMAQI
29th Jul 20265010 PMAQI
29th Jul 20264611 PMAQI
30th Jul 20264012 AMAQI
30th Jul 2026401 AMAQI
30th Jul 2026232 AMAQI
30th Jul 2026233 AMAQI
20°C14/29°C
30th Jul 2026254 AMAQI
30th Jul 2026295 AMAQI
30th Jul 2026256 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026218 AMAQI
30th Jul 2026239 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20262711 AMAQI
30th Jul 20262712 PMAQI
30th Jul 2026361 PMAQI
30th Jul 2026382 PMAQI
30th Jul 2026273 PMAQI
30th Jul 2026364 PMAQI
30th Jul 2026335 PMAQI
30th Jul 2026296 PMAQI
30th Jul 2026297 PMAQI
30th Jul 2026318 PMAQI
30th Jul 2026489 PMAQI
30th Jul 20264810 PMAQI
30th Jul 20264511 PMAQI
31st Jul 20265012 AMAQI
31st Jul 2026461 AMAQI
31st Jul 2026422 AMAQI
31st Jul 2026473 AMAQI
23°C15/31°C
31st Jul 2026484 AMAQI
31st Jul 2026275 AMAQI
31st Jul 2026216 AMAQI
31st Jul 2026217 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026299 AMAQI
31st Jul 20262710 AMAQI
31st Jul 20264011 AMAQI
31st Jul 20265212 PMAQI
31st Jul 2026541 PMAQI
31st Jul 2026562 PMAQI
31st Jul 2026573 PMAQI
31st Jul 2026574 PMAQI
31st Jul 2026625 PMAQI
31st Jul 2026656 PMAQI
31st Jul 2026667 PMAQI
31st Jul 2026428 PMAQI
31st Jul 2026369 PMAQI
31st Jul 20263610 PMAQI
31st Jul 20263111 PMAQI
1st Aug 20263212 AMAQI
1st Aug 2026251 AMAQI
1st Aug 2026212 AMAQI
1st Aug 2026423 AMAQI
22°C16/31°C
1st Aug 2026334 AMAQI
1st Aug 2026295 AMAQI
1st Aug 2026366 AMAQI
1st Aug 2026447 AMAQI
1st Aug 2026368 AMAQI
1st Aug 2026349 AMAQI
1st Aug 20264010 AMAQI
1st Aug 20264911 AMAQI
1st Aug 20264512 PMAQI
1st Aug 2026381 PMAQI
1st Aug 2026332 PMAQI
1st Aug 2026313 PMAQI
1st Aug 2026364 PMAQI
1st Aug 2026385 PMAQI
1st Aug 2026316 PMAQI
1st Aug 2026367 PMAQI
1st Aug 2026368 PMAQI
1st Aug 2026379 PMAQI
1st Aug 20263410 PMAQI
1st Aug 20263611 PMAQI
2nd Aug 20262912 AMAQI
2nd Aug 2026291 AMAQI
2nd Aug 2026262 AMAQI
2nd Aug 2026293 AMAQI
23°C16/31°C
2nd Aug 2026284 AMAQI
2nd Aug 2026295 AMAQI
2nd Aug 2026266 AMAQI
2nd Aug 2026277 AMAQI
2nd Aug 2026268 AMAQI
2nd Aug 2026259 AMAQI
2nd Aug 20263410 AMAQI
2nd Aug 20264211 AMAQI
2nd Aug 20264412 PMAQI
2nd Aug 2026561 PMAQI
2nd Aug 2026322 PMAQI
2nd Aug 2026473 PMAQI
2nd Aug 2026484 PMAQI
2nd Aug 2026405 PMAQI
2nd Aug 2026346 PMAQI
2nd Aug 2026277 PMAQI
2nd Aug 2026298 PMAQI
2nd Aug 2026299 PMAQI
2nd Aug 20262910 PMAQI
2nd Aug 20262611 PMAQI
3rd Aug 20263612 AMAQI
3rd Aug 2026251 AMAQI
3rd Aug 2026212 AMAQI
3rd Aug 2026363 AMAQI
23°C17/32°C
3rd Aug 2026214 AMAQI
3rd Aug 2026215 AMAQI
3rd Aug 2026216 AMAQI
3rd Aug 2026257 AMAQI
3rd Aug 2026218 AMAQI
3rd Aug 2026219 AMAQI
3rd Aug 20262110 AMAQI
3rd Aug 20262511 AMAQI
3rd Aug 20262512 PMAQI
3rd Aug 2026191 PMAQI
3rd Aug 2026272 PMAQI
3rd Aug 2026213 PMAQI
3rd Aug 2026254 PMAQI
3rd Aug 2026255 PMAQI
3rd Aug 2026296 PMAQI
3rd Aug 2026197 PMAQI
3rd Aug 2026238 PMAQI
3rd Aug 2026169 PMAQI
3rd Aug 20261910 PMAQI
3rd Aug 20261711 PMAQI
4th Aug 20261912 AMAQI
4th Aug 2026121 AMAQI
4th Aug 2026172 AMAQI
4th Aug 2026173 AMAQI
20°C19/22°C
4th Aug 2026174 AMAQI
4th Aug 2026165 AMAQI
4th Aug 2026146 AMAQI
4th Aug 2026237 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026239 AMAQI
4th Aug 20262910 AMAQI
4th Aug 20262711 AMAQI
4th Aug 20262512 PMAQI
4th Aug 2026361 PMAQI
4th Aug 2026402 PMAQI
4th Aug 2026333 PMAQI
4th Aug 2026254 PMAQI
4th Aug 2026295 PMAQI
4th Aug 2026276 PMAQI
4th Aug 2026217 PMAQI
4th Aug 2026238 PMAQI
4th Aug 2026299 PMAQI
4th Aug 20262710 PMAQI
4th Aug 20262511 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026251 AMAQI
5th Aug 2026252 AMAQI
5th Aug 2026273 AMAQI
20°C13/25°C
5th Aug 2026274 AMAQI
5th Aug 2026275 AMAQI
5th Aug 2026256 AMAQI
5th Aug 2026257 AMAQI
5th Aug 2026238 AMAQI
5th Aug 2026219 AMAQI
5th Aug 20262310 AMAQI
5th Aug 20262711 AMAQI
5th Aug 20263112 PMAQI
5th Aug 2026231 PMAQI
5th Aug 2026272 PMAQI
5th Aug 2026253 PMAQI
5th Aug 2026234 PMAQI
5th Aug 2026275 PMAQI
5th Aug 2026296 PMAQI
5th Aug 2026297 PMAQI
5th Aug 2026338 PMAQI
5th Aug 2026289 PMAQI
5th Aug 20263610 PMAQI
5th Aug 20262911 PMAQI
6th Aug 20263112 AMAQI
6th Aug 2026251 AMAQI
6th Aug 2026292 AMAQI
6th Aug 2026273 AMAQI
20°C12/28°C
6th Aug 2026274 AMAQI
6th Aug 2026295 AMAQI
6th Aug 2026296 AMAQI
6th Aug 2026297 AMAQI
6th Aug 2026298 AMAQI
6th Aug 2026369 AMAQI
6th Aug 20263410 AMAQI
6th Aug 20263111 AMAQI
6th Aug 20264212 PMAQI
6th Aug 2026421 PMAQI
6th Aug 2026302 PMAQI
6th Aug 2026273 PMAQI
6th Aug 2026234 PMAQI
6th Aug 2026235 PMAQI
6th Aug 2026236 PMAQI
6th Aug 2026257 PMAQI
6th Aug 2026278 PMAQI
6th Aug 2026259 PMAQI
6th Aug 20263410 PMAQI
6th Aug 20262711 PMAQI
7th Aug 20262912 AMAQI
7th Aug 2026321 AMAQI
7th Aug 2026282 AMAQI
7th Aug 2026313 AMAQI
22°C17/29°C
7th Aug 2026284 AMAQI
7th Aug 2026275 AMAQI
7th Aug 2026226 AMAQI
7th Aug 2026337 AMAQI
7th Aug 2026238 AMAQI
7th Aug 2026239 AMAQI
7th Aug 20263210 AMAQI
7th Aug 20262711 AMAQI
7th Aug 20263812 PMAQI
7th Aug 2026341 PMAQI
7th Aug 2026402 PMAQI
7th Aug 2026383 PMAQI
7th Aug 2026274 PMAQI
7th Aug 2026275 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026337 PMAQI
7th Aug 2026278 PMAQI
7th Aug 2026279 PMAQI
7th Aug 20263210 PMAQI
7th Aug 20264011 PMAQI
8th Aug 20262512 AMAQI
8th Aug 2026341 AMAQI
8th Aug 2026332 AMAQI
8th Aug 2026273 AMAQI
22°C18/29°C
8th Aug 2026274 AMAQI
8th Aug 2026295 AMAQI
8th Aug 2026256 AMAQI
8th Aug 2026257 AMAQI
8th Aug 2026298 AMAQI
8th Aug 2026299 AMAQI
8th Aug 20262910 AMAQI
8th Aug 20263111 AMAQI
8th Aug 20262912 PMAQI
8th Aug 2026251 PMAQI
8th Aug 2026362 PMAQI
8th Aug 2026363 PMAQI
8th Aug 2026234 PMAQI
8th Aug 2026235 PMAQI
8th Aug 2026296 PMAQI
8th Aug 2026297 PMAQI
8th Aug 2026298 PMAQI
8th Aug 2026299 PMAQI
8th Aug 20262710 PMAQI
8th Aug 20262911 PMAQI
9th Aug 20262712 AMAQI
9th Aug 2026251 AMAQI
9th Aug 2026272 AMAQI
9th Aug 2026253 AMAQI
22°C16/30°C
9th Aug 2026214 AMAQI
9th Aug 2026315 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026297 AMAQI
9th Aug 2026298 AMAQI
9th Aug 2026299 AMAQI
9th Aug 20262710 AMAQI
9th Aug 20262111 AMAQI
9th Aug 20262312 PMAQI
9th Aug 2026421 PMAQI
9th Aug 2026322 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026294 PMAQI
9th Aug 2026275 PMAQI
9th Aug 2026256 PMAQI
9th Aug 2026257 PMAQI
9th Aug 2026278 PMAQI
9th Aug 2026259 PMAQI
9th Aug 20262910 PMAQI
9th Aug 20262511 PMAQI
10th Aug 20262512 AMAQI
10th Aug 2026231 AMAQI
10th Aug 2026212 AMAQI
10th Aug 2026233 AMAQI
22°C17/28°C
10th Aug 2026234 AMAQI
10th Aug 2026235 AMAQI
10th Aug 2026296 AMAQI
10th Aug 2026257 AMAQI
10th Aug 2026318 AMAQI
10th Aug 2026219 AMAQI
10th Aug 20262710 AMAQI
10th Aug 20262511 AMAQI
10th Aug 20263412 PMAQI
10th Aug 2026451 PMAQI
10th Aug 2026322 PMAQI
10th Aug 2026233 PMAQI
10th Aug 2026324 PMAQI
10th Aug 2026405 PMAQI
10th Aug 2026346 PMAQI
10th Aug 2026257 PMAQI
10th Aug 2026318 PMAQI
10th Aug 2026339 PMAQI
10th Aug 20263210 PMAQI
10th Aug 20263011 PMAQI
11th Aug 20263612 AMAQI
11th Aug 2026241 AMAQI
11th Aug 2026422 AMAQI
11th Aug 2026343 AMAQI
22°C17/30°C
11th Aug 2026324 AMAQI
11th Aug 2026325 AMAQI
11th Aug 2026406 AMAQI
11th Aug 2026347 AMAQI
11th Aug 2026308 AMAQI
11th Aug 2026409 AMAQI
11th Aug 20262310 AMAQI
11th Aug 20263111 AMAQI
11th Aug 20262912 PMAQI
11th Aug 2026361 PMAQI
11th Aug 2026292 PMAQI
11th Aug 2026273 PMAQI
11th Aug 2026274 PMAQI
11th Aug 2026295 PMAQI
11th Aug 2026316 PMAQI
11th Aug 2026277 PMAQI
11th Aug 2026258 PMAQI
11th Aug 2026259 PMAQI
11th Aug 20262310 PMAQI
11th Aug 20262511 PMAQI
12th Aug 20262912 AMAQI
12th Aug 2026251 AMAQI
12th Aug 2026292 AMAQI
12th Aug 2026293 AMAQI
18°C11/24°C
12th Aug 2026274 AMAQI
12th Aug 2026215 AMAQI
12th Aug 2026256 AMAQI
12th Aug 2026277 AMAQI
12th Aug 2026198 AMAQI
12th Aug 2026329 AMAQI
12th Aug 20263410 AMAQI
12th Aug 20262311 AMAQI
12th Aug 20264612 PMAQI
12th Aug 2026381 PMAQI
12th Aug 2026382 PMAQI
12th Aug 2026283 PMAQI
12th Aug 2026244 PMAQI
12th Aug 2026345 PMAQI
12th Aug 2026256 PMAQI
12th Aug 2026377 PMAQI
12th Aug 2026408 PMAQI
12th Aug 2026349 PMAQI
12th Aug 20263110 PMAQI
12th Aug 20262911 PMAQI
13th Aug 20263112 AMAQI
13th Aug 2026291 AMAQI
13th Aug 2026272 AMAQI
13th Aug 2026383 AMAQI
18°C17/20°C
13th Aug 2026384 AMAQI
13th Aug 2026385 AMAQI
13th Aug 2026306 AMAQI
13th Aug 2026427 AMAQI
13th Aug 2026408 AMAQI
13th Aug 2026489 AMAQI
13th Aug 20264210 AMAQI
13th Aug 20263611 AMAQI
13th Aug 20262712 PMAQI
13th Aug 2026401 PMAQI
13th Aug 2026422 PMAQI
13th Aug 2026273 PMAQI
13th Aug 2026314 PMAQI
13th Aug 2026365 PMAQI
13th Aug 2026366 PMAQI
13th Aug 2026327 PMAQI
13th Aug 2026308 PMAQI
13th Aug 2026409 PMAQI
13th Aug 20263810 PMAQI
13th Aug 20264611 PMAQI
14th Aug 20263612 AMAQI
14th Aug 2026571 AMAQI
14th Aug 2026572 AMAQI
14th Aug 2026563 AMAQI
20°C13/26°C
14th Aug 2026574 AMAQI
14th Aug 2026585 AMAQI
14th Aug 2026606 AMAQI
14th Aug 2026607 AMAQI
14th Aug 2026578 AMAQI
14th Aug 2026549 AMAQI
14th Aug 20266410 AMAQI
14th Aug 20266411 AMAQI
14th Aug 20266412 PMAQI
14th Aug 2026541 PMAQI
14th Aug 2026482 PMAQI
14th Aug 2026403 PMAQI
14th Aug 2026364 PMAQI
14th Aug 2026385 PMAQI
14th Aug 2026406 PMAQI
14th Aug 2026407 PMAQI
14th Aug 2026408 PMAQI
14th Aug 2026429 PMAQI
14th Aug 20263810 PMAQI
14th Aug 20263811 PMAQI
15th Aug 20264012 AMAQI
15th Aug 2026401 AMAQI
15th Aug 2026422 AMAQI
15th Aug 2026383 AMAQI
21°C19/25°C
15th Aug 2026364 AMAQI
15th Aug 2026385 AMAQI
15th Aug 2026406 AMAQI
15th Aug 2026337 AMAQI
15th Aug 2026348 AMAQI
15th Aug 2026299 AMAQI
15th Aug 20262910 AMAQI
15th Aug 20262511 AMAQI
15th Aug 20262712 PMAQI
15th Aug 2026311 PMAQI
15th Aug 2026252 PMAQI
15th Aug 2026253 PMAQI
15th Aug 2026314 PMAQI
15th Aug 2026275 PMAQI
15th Aug 2026256 PMAQI
15th Aug 2026237 PMAQI
15th Aug 2026258 PMAQI
15th Aug 2026259 PMAQI
15th Aug 20263210 PMAQI
15th Aug 20262511 PMAQI
16th Aug 20262112 AMAQI
16th Aug 2026231 AMAQI
16th Aug 2026272 AMAQI
16th Aug 2026293 AMAQI
20°C17/22°C
16th Aug 2026274 AMAQI
4 AM16th Aug 2026235 AMAQI
16th Aug 2026196 AMAQI
16th Aug 2026257 AMAQI
16th Aug 2026298 AMAQI
16th Aug 2026279 AMAQI
16th Aug 20262710 AMAQI
16th Aug 20261911 AMAQI
11 AM16th Aug 20262112 PMAQI
16th Aug 2026231 PMAQI
16th Aug 2026252 PMAQI
16th Aug 2026213 PMAQI
16th Aug 2026214 PMAQI
16th Aug 2026255 PMAQI
16th Aug 2026256 PMAQI
6 PM16th Aug 2026257 PMAQI
16th Aug 2026238 PMAQI
16th Aug 2026199 PMAQI
16th Aug 20262110 PMAQI
16th Aug 20261711 PMAQI
11 PM3 AM
19°C17/22°C
Day time
Avg. Highest Time
1 PM - 2 PM
43AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
5 AM - 6 AM
33AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 2 PM (Avg. 43), while the lowest AQI was between 5 AM to 6 AM (Avg. 33).
Night time
Avg. Highest Time
7 PM
40AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
2 AM
33AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 40), while the lowest AQI was between 2 AM to 2 AM (Avg. 33).
2026 Days Vs Air Quality
Iwamurada, Saku, Nagano, Japan
2026
85%
194
15%
34
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Good
194 DaysModerate
34 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2026, 85% 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
Iwamurada, Saku, 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
12AQI (US)
12AQI (US)
2nd January 2026
13AQI (US)
13AQI (US)
3rd January 2026
11AQI (US)
11AQI (US)
4th January 2026
16AQI (US)
16AQI (US)
5th January 2026
24AQI (US)
24AQI (US)
6th January 2026
21AQI (US)
21AQI (US)
7th January 2026
26AQI (US)
26AQI (US)
8th January 2026
23AQI (US)
23AQI (US)
9th January 2026
16AQI (US)
16AQI (US)
10th January 2026
30AQI (US)
30AQI (US)
11th January 2026
24AQI (US)
24AQI (US)
12th January 2026
13AQI (US)
13AQI (US)
13th January 2026
21AQI (US)
21AQI (US)
14th January 2026
12AQI (US)
12AQI (US)
15th January 2026
33AQI (US)
33AQI (US)
16th January 2026
48AQI (US)
48AQI (US)
17th January 2026
52AQI (US)
52AQI (US)
18th January 2026
35AQI (US)
35AQI (US)
19th January 2026
51AQI (US)
51AQI (US)
20th January 2026
29AQI (US)
29AQI (US)
21st January 2026
12AQI (US)
12AQI (US)
22nd January 2026
18AQI (US)
18AQI (US)
23rd January 2026
25AQI (US)
25AQI (US)
24th January 2026
41AQI (US)
41AQI (US)
25th January 2026
42AQI (US)
42AQI (US)
26th January 2026
22AQI (US)
22AQI (US)
27th January 2026
40AQI (US)
40AQI (US)
28th January 2026
27AQI (US)
27AQI (US)
29th January 2026
30AQI (US)
30AQI (US)
30th January 2026
41AQI (US)
41AQI (US)
31st January 2026
17AQI (US)
17AQI (US)
1st February 2026
37AQI (US)
37AQI (US)
2nd February 2026
43AQI (US)
43AQI (US)
3rd February 2026
30AQI (US)
30AQI (US)
4th February 2026
26AQI (US)
26AQI (US)
5th February 2026
52AQI (US)
52AQI (US)
6th February 2026
52AQI (US)
52AQI (US)
7th February 2026
13AQI (US)
13AQI (US)
8th February 2026
11AQI (US)
11AQI (US)
9th February 2026
31AQI (US)
31AQI (US)
10th February 2026
37AQI (US)
37AQI (US)
11th February 2026
41AQI (US)
41AQI (US)
12th February 2026
51AQI (US)
51AQI (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
55AQI (US)
55AQI (US)
17th February 2026
22AQI (US)
22AQI (US)
18th February 2026
25AQI (US)
25AQI (US)
19th February 2026
49AQI (US)
49AQI (US)
20th February 2026
32AQI (US)
32AQI (US)
21st February 2026
54AQI (US)
54AQI (US)
22nd February 2026
46AQI (US)
46AQI (US)
23rd February 2026
52AQI (US)
52AQI (US)
24th February 2026
51AQI (US)
51AQI (US)
25th February 2026
20AQI (US)
20AQI (US)
26th February 2026
10AQI (US)
10AQI (US)
27th February 2026
16AQI (US)
16AQI (US)
28th February 2026
18AQI (US)
18AQI (US)
1st March 2026
33AQI (US)
33AQI (US)
2nd March 2026
51AQI (US)
51AQI (US)
3rd March 2026
34AQI (US)
34AQI (US)
4th March 2026
16AQI (US)
16AQI (US)
5th March 2026
50AQI (US)
50AQI (US)
6th March 2026
41AQI (US)
41AQI (US)
7th March 2026
37AQI (US)
37AQI (US)
8th March 2026
36AQI (US)
36AQI (US)
9th March 2026
41AQI (US)
41AQI (US)
10th March 2026
50AQI (US)
50AQI (US)
11th March 2026
50AQI (US)
50AQI (US)
12th March 2026
55AQI (US)
55AQI (US)
13th March 2026
33AQI (US)
33AQI (US)
14th March 2026
39AQI (US)
39AQI (US)
15th March 2026
45AQI (US)
45AQI (US)
16th March 2026
46AQI (US)
46AQI (US)
17th March 2026
44AQI (US)
44AQI (US)
18th March 2026
57AQI (US)
57AQI (US)
19th March 2026
24AQI (US)
24AQI (US)
20th March 2026
44AQI (US)
44AQI (US)
21st March 2026
48AQI (US)
48AQI (US)
22nd March 2026
54AQI (US)
54AQI (US)
23rd March 2026
50AQI (US)
50AQI (US)
24th March 2026
47AQI (US)
47AQI (US)
25th March 2026
51AQI (US)
51AQI (US)
26th March 2026
12AQI (US)
12AQI (US)
27th March 2026
21AQI (US)
21AQI (US)
28th March 2026
58AQI (US)
58AQI (US)
29th March 2026
66AQI (US)
66AQI (US)
30th March 2026
45AQI (US)
45AQI (US)
31st March 2026
23AQI (US)
23AQI (US)
1st April 2026
11AQI (US)
11AQI (US)
2nd April 2026
17AQI (US)
17AQI (US)
3rd April 2026
46AQI (US)
46AQI (US)
4th April 2026
39AQI (US)
39AQI (US)
5th April 2026
16AQI (US)
16AQI (US)
6th April 2026
40AQI (US)
40AQI (US)
7th April 2026
36AQI (US)
36AQI (US)
8th April 2026
27AQI (US)
27AQI (US)
9th April 2026
25AQI (US)
25AQI (US)
10th April 2026
28AQI (US)
28AQI (US)
11th April 2026
30AQI (US)
30AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
29AQI (US)
29AQI (US)
14th April 2026
45AQI (US)
45AQI (US)
15th April 2026
24AQI (US)
24AQI (US)
16th April 2026
26AQI (US)
26AQI (US)
17th April 2026
30AQI (US)
30AQI (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
32AQI (US)
32AQI (US)
22nd April 2026
30AQI (US)
30AQI (US)
23rd April 2026
26AQI (US)
26AQI (US)
24th April 2026
18AQI (US)
18AQI (US)
25th April 2026
25AQI (US)
25AQI (US)
26th April 2026
37AQI (US)
37AQI (US)
27th April 2026
37AQI (US)
37AQI (US)
28th April 2026
34AQI (US)
34AQI (US)
29th April 2026
30AQI (US)
30AQI (US)
30th April 2026
23AQI (US)
23AQI (US)
1st May 2026
23AQI (US)
23AQI (US)
2nd May 2026
45AQI (US)
45AQI (US)
3rd May 2026
52AQI (US)
52AQI (US)
4th May 2026
23AQI (US)
23AQI (US)
5th May 2026
22AQI (US)
22AQI (US)
6th May 2026
28AQI (US)
28AQI (US)
7th May 2026
31AQI (US)
31AQI (US)
8th May 2026
27AQI (US)
27AQI (US)
9th May 2026
24AQI (US)
24AQI (US)
10th May 2026
32AQI (US)
32AQI (US)
11th May 2026
25AQI (US)
25AQI (US)
12th May 2026
27AQI (US)
27AQI (US)
13th May 2026
37AQI (US)
37AQI (US)
14th May 2026
31AQI (US)
31AQI (US)
15th May 2026
32AQI (US)
32AQI (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
59AQI (US)
59AQI (US)
25th May 2026
49AQI (US)
49AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
19AQI (US)
19AQI (US)
28th May 2026
28AQI (US)
28AQI (US)
29th May 2026
23AQI (US)
23AQI (US)
30th May 2026
22AQI (US)
22AQI (US)
31st May 2026
32AQI (US)
32AQI (US)
1st June 2026
37AQI (US)
37AQI (US)
2nd June 2026
24AQI (US)
24AQI (US)
3rd June 2026
17AQI (US)
17AQI (US)
4th June 2026
10AQI (US)
10AQI (US)
5th June 2026
20AQI (US)
20AQI (US)
6th June 2026
20AQI (US)
20AQI (US)
7th June 2026
20AQI (US)
20AQI (US)
8th June 2026
16AQI (US)
16AQI (US)
9th June 2026
21AQI (US)
21AQI (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
24AQI (US)
24AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
19AQI (US)
19AQI (US)
16th June 2026
24AQI (US)
24AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
24AQI (US)
24AQI (US)
19th June 2026
26AQI (US)
26AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
16AQI (US)
16AQI (US)
22nd June 2026
15AQI (US)
15AQI (US)
23rd June 2026
18AQI (US)
18AQI (US)
24th June 2026
20AQI (US)
20AQI (US)
25th June 2026
22AQI (US)
22AQI (US)
26th June 2026
25AQI (US)
25AQI (US)
27th June 2026
22AQI (US)
22AQI (US)
28th June 2026
24AQI (US)
24AQI (US)
29th June 2026
27AQI (US)
27AQI (US)
30th June 2026
38AQI (US)
38AQI (US)
1st July 2026
41AQI (US)
41AQI (US)
2nd July 2026
17AQI (US)
17AQI (US)
3rd July 2026
19AQI (US)
19AQI (US)
4th July 2026
25AQI (US)
25AQI (US)
5th July 2026
20AQI (US)
20AQI (US)
6th July 2026
15AQI (US)
15AQI (US)
7th July 2026
22AQI (US)
22AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
26AQI (US)
26AQI (US)
10th July 2026
28AQI (US)
28AQI (US)
11th July 2026
29AQI (US)
29AQI (US)
12th July 2026
28AQI (US)
28AQI (US)
13th July 2026
33AQI (US)
33AQI (US)
14th July 2026
34AQI (US)
34AQI (US)
15th July 2026
51AQI (US)
51AQI (US)
16th July 2026
56AQI (US)
56AQI (US)
17th July 2026
37AQI (US)
37AQI (US)
18th July 2026
38AQI (US)
38AQI (US)
19th July 2026
39AQI (US)
39AQI (US)
20th July 2026
32AQI (US)
32AQI (US)
21st July 2026
57AQI (US)
57AQI (US)
22nd July 2026
65AQI (US)
65AQI (US)
23rd July 2026
65AQI (US)
65AQI (US)
24th July 2026
53AQI (US)
53AQI (US)
25th July 2026
49AQI (US)
49AQI (US)
26th July 2026
45AQI (US)
45AQI (US)
27th July 2026
33AQI (US)
33AQI (US)
28th July 2026
38AQI (US)
38AQI (US)
29th July 2026
35AQI (US)
35AQI (US)
30th July 2026
31AQI (US)
31AQI (US)
31st July 2026
43AQI (US)
43AQI (US)
1st August 2026
36AQI (US)
36AQI (US)
2nd August 2026
33AQI (US)
33AQI (US)
3rd August 2026
23AQI (US)
23AQI (US)
4th August 2026
24AQI (US)
24AQI (US)
5th August 2026
27AQI (US)
27AQI (US)
6th August 2026
29AQI (US)
29AQI (US)
7th August 2026
30AQI (US)
30AQI (US)
8th August 2026
29AQI (US)
29AQI (US)
9th August 2026
27AQI (US)
27AQI (US)
10th August 2026
29AQI (US)
29AQI (US)
11th August 2026
30AQI (US)
30AQI (US)
12th August 2026
30AQI (US)
30AQI (US)
13th August 2026
36AQI (US)
36AQI (US)
14th August 2026
50AQI (US)
50AQI (US)
15th August 2026
31AQI (US)
31AQI (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
27AQI (US)
38AQI (US)
42AQI (US)
30AQI (US)
39AQI (US)
22AQI (US)
36AQI (US)
30AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202633AQI (US)
29
2
18
10
24
7
30
22
9
30
25
6
16
194
34
Highest AQI (US) recorded in
March42AQI (US)
Lowest AQI (US) recorded in
June22AQI (US)
202539AQI (US)
31
28
26
5
25
5
27
4
25
5
21
10
25
6
30
30
1
23
7
30
1
321
44
Highest AQI (US) recorded in
July49AQI (US)
Lowest AQI (US) recorded in
December33AQI (US)
202432AQI (US)
16
12
26
4
30
1
29
2
26
3
31
30
31
231
10
Highest AQI (US) recorded in
June42AQI (US)
Lowest AQI (US) recorded in
January12AQI (US)
202321AQI (US)
3
31
34
Highest AQI (US) recorded in
December21AQI (US)
Lowest AQI (US) recorded in
November18AQI (US)
202026AQI (US)
13
7
2
22
Highest AQI (US) recorded in
March28AQI (US)
Lowest AQI (US) recorded in
September15AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2025(Avg.)
39AQI (US)Least Polluted Year Recorded
2023(Avg.)
21AQI (US)Iwamurada's annual 2026 AQI (US) (33) shows an average percentage change of 17.9% (worsened AQI (US)) compared to previous years: 2020 (26), 2023 (21), 2024 (32), 2025 (39).
