Iida, 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+
July Air Quality Analysis
Iida, Nagano, Japan
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
9th Jul 2025
72AQILowest AQI recorded on
6th Jul 2026
12AQISame Day Analysis (30th July):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 29th Jul - 30th Jul 2026
Iida, Nagano, Japan
AQI
Day
Night
.
4 AM29th Jul 2026
7 PM
3 AM30th Jul 2026
Day time
Avg. Highest Time
11AM29th Jul
48AQI
Avg. Lowest Time
3PM29th Jul
25AQI
Night time
Avg. Highest Time
7PM29th Jul
48AQI
Avg. Lowest Time
12AM30th Jul
27AQI
In the last 24 hours,
Iida's AQI reached its highest point of 48 at 11 AM during the Day, while the lowest point, 25, was recorded at 3 PM during the Day between 29th Jul and 30th Jul 2026.
Day & Night AQI Trend : Jul 2026
Iida, Nagano, Japan
Jul
01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th
Day
Night
1st Jul 2026624 AMAQI
1st Jul 2026595 AMAQI
1st Jul 2026586 AMAQI
1st Jul 2026277 AMAQI
1st Jul 2026288 AMAQI
1st Jul 2026289 AMAQI
1st Jul 20262810 AMAQI
1st Jul 20262811 AMAQI
1st Jul 20262612 PMAQI
1st Jul 2026261 PMAQI
1st Jul 2026282 PMAQI
1st Jul 2026283 PMAQI
1st Jul 2026254 PMAQI
1st Jul 2026285 PMAQI
1st Jul 2026296 PMAQI
1st Jul 2026297 PMAQI
1st Jul 2026278 PMAQI
1st Jul 2026289 PMAQI
1st Jul 20263010 PMAQI
1st Jul 20263211 PMAQI
2nd Jul 20262812 AMAQI
2nd Jul 2026281 AMAQI
2nd Jul 2026272 AMAQI
2nd Jul 2026243 AMAQI
18°C11/25°C
2nd Jul 2026244 AMAQI
2nd Jul 2026265 AMAQI
2nd Jul 2026126 AMAQI
2nd Jul 202687 AMAQI
2nd Jul 2026108 AMAQI
2nd Jul 202689 AMAQI
2nd Jul 2026810 AMAQI
2nd Jul 2026811 AMAQI
2nd Jul 2026812 PMAQI
2nd Jul 202681 PMAQI
2nd Jul 202682 PMAQI
2nd Jul 202683 PMAQI
2nd Jul 2026104 PMAQI
2nd Jul 202685 PMAQI
2nd Jul 202686 PMAQI
2nd Jul 2026127 PMAQI
2nd Jul 2026128 PMAQI
2nd Jul 2026129 PMAQI
2nd Jul 20261010 PMAQI
2nd Jul 2026811 PMAQI
3rd Jul 2026812 AMAQI
3rd Jul 202681 AMAQI
3rd Jul 2026102 AMAQI
3rd Jul 2026123 AMAQI
18°C13/22°C
3rd Jul 2026124 AMAQI
3rd Jul 2026125 AMAQI
3rd Jul 202686 AMAQI
3rd Jul 2026197 AMAQI
3rd Jul 2026128 AMAQI
3rd Jul 202689 AMAQI
3rd Jul 2026810 AMAQI
3rd Jul 2026811 AMAQI
3rd Jul 20261212 PMAQI
3rd Jul 2026121 PMAQI
3rd Jul 2026172 PMAQI
3rd Jul 2026173 PMAQI
3rd Jul 2026174 PMAQI
3rd Jul 2026215 PMAQI
3rd Jul 2026296 PMAQI
3rd Jul 2026317 PMAQI
3rd Jul 2026258 PMAQI
3rd Jul 2026339 PMAQI
3rd Jul 20264610 PMAQI
3rd Jul 20264011 PMAQI
4th Jul 20263112 AMAQI
4th Jul 2026191 AMAQI
4th Jul 2026212 AMAQI
4th Jul 2026213 AMAQI
19°C12/24°C
4th Jul 2026214 AMAQI
4th Jul 2026275 AMAQI
4th Jul 2026256 AMAQI
4th Jul 2026317 AMAQI
4th Jul 2026298 AMAQI
4th Jul 2026299 AMAQI
4th Jul 20262510 AMAQI
4th Jul 20262511 AMAQI
4th Jul 20262112 PMAQI
4th Jul 2026291 PMAQI
4th Jul 2026382 PMAQI
4th Jul 2026333 PMAQI
4th Jul 2026294 PMAQI
4th Jul 2026335 PMAQI
4th Jul 2026366 PMAQI
4th Jul 2026277 PMAQI
4th Jul 2026298 PMAQI
4th Jul 2026299 PMAQI
4th Jul 20262710 PMAQI
4th Jul 20262711 PMAQI
5th Jul 20262512 AMAQI
5th Jul 2026211 AMAQI
5th Jul 2026252 AMAQI
5th Jul 2026233 AMAQI
19°C16/23°C
5th Jul 2026294 AMAQI
5th Jul 2026315 AMAQI
5th Jul 2026336 AMAQI
5th Jul 2026297 AMAQI
5th Jul 2026248 AMAQI
5th Jul 2026209 AMAQI
5th Jul 20262010 AMAQI
5th Jul 20261811 AMAQI
5th Jul 20261812 PMAQI
5th Jul 2026191 PMAQI
5th Jul 2026212 PMAQI
5th Jul 2026243 PMAQI
5th Jul 2026244 PMAQI
5th Jul 2026245 PMAQI
5th Jul 2026166 PMAQI
5th Jul 2026187 PMAQI
5th Jul 2026208 PMAQI
5th Jul 2026229 PMAQI
5th Jul 2026810 PMAQI
5th Jul 20261211 PMAQI
6th Jul 2026812 AMAQI
6th Jul 2026161 AMAQI
6th Jul 2026242 AMAQI
6th Jul 2026163 AMAQI
18°C13/21°C
6th Jul 2026154 AMAQI
6th Jul 202685 AMAQI
6th Jul 202686 AMAQI
6th Jul 202687 AMAQI
6th Jul 2026148 AMAQI
6th Jul 2026149 AMAQI
6th Jul 20262410 AMAQI
6th Jul 20263311 AMAQI
6th Jul 20261412 PMAQI
6th Jul 202681 PMAQI
6th Jul 202682 PMAQI
6th Jul 202683 PMAQI
6th Jul 202684 PMAQI
6th Jul 202685 PMAQI
6th Jul 2026126 PMAQI
6th Jul 202687 PMAQI
6th Jul 202688 PMAQI
6th Jul 202689 PMAQI
6th Jul 2026810 PMAQI
6th Jul 2026811 PMAQI
7th Jul 2026812 AMAQI
7th Jul 202681 AMAQI
7th Jul 202682 AMAQI
7th Jul 2026123 AMAQI
19°C17/20°C
7th Jul 2026124 AMAQI
7th Jul 2026125 AMAQI
7th Jul 2026126 AMAQI
7th Jul 202687 AMAQI
7th Jul 2026208 AMAQI
7th Jul 2026129 AMAQI
7th Jul 2026810 AMAQI
7th Jul 20261611 AMAQI
7th Jul 2026812 PMAQI
7th Jul 202681 PMAQI
7th Jul 202682 PMAQI
7th Jul 2026273 PMAQI
7th Jul 2026244 PMAQI
7th Jul 2026245 PMAQI
7th Jul 2026266 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026268 PMAQI
7th Jul 2026249 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262611 PMAQI
8th Jul 20263012 AMAQI
8th Jul 2026301 AMAQI
8th Jul 2026302 AMAQI
8th Jul 2026303 AMAQI
20°C16/24°C
8th Jul 2026264 AMAQI
8th Jul 2026275 AMAQI
8th Jul 2026286 AMAQI
8th Jul 2026267 AMAQI
8th Jul 2026258 AMAQI
8th Jul 2026249 AMAQI
8th Jul 20262410 AMAQI
8th Jul 20262211 AMAQI
8th Jul 20262412 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026223 PMAQI
8th Jul 2026264 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026256 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026218 PMAQI
8th Jul 2026229 PMAQI
8th Jul 20262410 PMAQI
8th Jul 20262811 PMAQI
9th Jul 20263112 AMAQI
9th Jul 2026301 AMAQI
9th Jul 2026332 AMAQI
9th Jul 2026303 AMAQI
22°C18/27°C
9th Jul 2026284 AMAQI
9th Jul 2026305 AMAQI
9th Jul 2026306 AMAQI
9th Jul 2026307 AMAQI
9th Jul 2026288 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20262610 AMAQI
9th Jul 20262411 AMAQI
9th Jul 20262212 PMAQI
9th Jul 2026191 PMAQI
9th Jul 2026222 PMAQI
9th Jul 2026263 PMAQI
9th Jul 2026274 PMAQI
9th Jul 2026265 PMAQI
9th Jul 2026286 PMAQI
9th Jul 2026287 PMAQI
9th Jul 2026288 PMAQI
9th Jul 2026269 PMAQI
9th Jul 20262910 PMAQI
9th Jul 20263111 PMAQI
10th Jul 20263012 AMAQI
10th Jul 2026291 AMAQI
10th Jul 2026302 AMAQI
10th Jul 2026273 AMAQI
23°C15/30°C
10th Jul 2026284 AMAQI
10th Jul 2026325 AMAQI
10th Jul 2026306 AMAQI
10th Jul 2026627 AMAQI
10th Jul 2026578 AMAQI
10th Jul 2026599 AMAQI
10th Jul 20263010 AMAQI
10th Jul 20263011 AMAQI
10th Jul 20262912 PMAQI
10th Jul 2026251 PMAQI
10th Jul 2026242 PMAQI
10th Jul 2026243 PMAQI
10th Jul 2026264 PMAQI
10th Jul 2026295 PMAQI
10th Jul 2026316 PMAQI
10th Jul 2026337 PMAQI
10th Jul 2026328 PMAQI
10th Jul 2026369 PMAQI
10th Jul 20263410 PMAQI
10th Jul 20263611 PMAQI
11th Jul 20263612 AMAQI
11th Jul 2026341 AMAQI
11th Jul 2026342 AMAQI
11th Jul 2026333 AMAQI
22°C14/32°C
11th Jul 2026284 AMAQI
11th Jul 2026345 AMAQI
11th Jul 2026336 AMAQI
11th Jul 2026347 AMAQI
11th Jul 2026348 AMAQI
11th Jul 2026369 AMAQI
11th Jul 20263510 AMAQI
11th Jul 20263011 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026261 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026233 PMAQI
11th Jul 2026264 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026258 PMAQI
11th Jul 2026289 PMAQI
11th Jul 20263110 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263112 AMAQI
12th Jul 2026281 AMAQI
12th Jul 2026282 AMAQI
12th Jul 2026283 AMAQI
22°C14/30°C
12th Jul 2026284 AMAQI
12th Jul 2026265 AMAQI
12th Jul 2026276 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026288 AMAQI
12th Jul 2026309 AMAQI
12th Jul 20263310 AMAQI
12th Jul 20263611 AMAQI
12th Jul 20264412 PMAQI
12th Jul 2026291 PMAQI
12th Jul 2026292 PMAQI
12th Jul 2026313 PMAQI
12th Jul 2026214 PMAQI
12th Jul 2026195 PMAQI
12th Jul 2026216 PMAQI
12th Jul 2026197 PMAQI
12th Jul 2026218 PMAQI
12th Jul 2026219 PMAQI
12th Jul 20261710 PMAQI
12th Jul 20262111 PMAQI
13th Jul 20262112 AMAQI
13th Jul 2026251 AMAQI
13th Jul 2026232 AMAQI
13th Jul 2026213 AMAQI
21°C14/28°C
13th Jul 2026254 AMAQI
13th Jul 2026245 AMAQI
13th Jul 2026246 AMAQI
13th Jul 2026257 AMAQI
13th Jul 2026268 AMAQI
13th Jul 2026269 AMAQI
13th Jul 20262810 AMAQI
13th Jul 20262411 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026221 PMAQI
13th Jul 2026202 PMAQI
13th Jul 2026203 PMAQI
13th Jul 2026234 PMAQI
13th Jul 2026305 PMAQI
13th Jul 2026306 PMAQI
13th Jul 2026327 PMAQI
13th Jul 2026328 PMAQI
13th Jul 2026299 PMAQI
13th Jul 20263210 PMAQI
13th Jul 20263111 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026311 AMAQI
14th Jul 2026302 AMAQI
14th Jul 2026323 AMAQI
21°C16/27°C
14th Jul 2026244 AMAQI
14th Jul 2026295 AMAQI
14th Jul 2026286 AMAQI
14th Jul 2026307 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026329 AMAQI
14th Jul 20263010 AMAQI
14th Jul 20262511 AMAQI
14th Jul 20262412 PMAQI
14th Jul 2026201 PMAQI
14th Jul 2026162 PMAQI
14th Jul 2026163 PMAQI
14th Jul 2026214 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026306 PMAQI
14th Jul 2026317 PMAQI
14th Jul 2026328 PMAQI
14th Jul 2026329 PMAQI
14th Jul 20263210 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263212 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026322 AMAQI
15th Jul 2026303 AMAQI
23°C14/32°C
15th Jul 2026224 AMAQI
15th Jul 2026315 AMAQI
15th Jul 2026246 AMAQI
15th Jul 2026307 AMAQI
15th Jul 2026288 AMAQI
15th Jul 2026309 AMAQI
15th Jul 20266210 AMAQI
15th Jul 20265611 AMAQI
15th Jul 20264612 PMAQI
15th Jul 2026481 PMAQI
15th Jul 2026362 PMAQI
15th Jul 2026233 PMAQI
15th Jul 2026254 PMAQI
15th Jul 2026255 PMAQI
15th Jul 2026466 PMAQI
15th Jul 2026337 PMAQI
15th Jul 2026488 PMAQI
15th Jul 2026409 PMAQI
15th Jul 20264810 PMAQI
15th Jul 20265311 PMAQI
16th Jul 20265312 AMAQI
16th Jul 2026541 AMAQI
16th Jul 2026572 AMAQI
16th Jul 2026653 AMAQI
23°C16/33°C
16th Jul 2026624 AMAQI
16th Jul 2026625 AMAQI
16th Jul 2026636 AMAQI
16th Jul 2026627 AMAQI
16th Jul 2026578 AMAQI
16th Jul 2026579 AMAQI
16th Jul 20265510 AMAQI
16th Jul 20264611 AMAQI
16th Jul 20265112 PMAQI
16th Jul 2026491 PMAQI
16th Jul 2026512 PMAQI
16th Jul 2026443 PMAQI
16th Jul 2026464 PMAQI
16th Jul 2026485 PMAQI
16th Jul 2026506 PMAQI
16th Jul 2026507 PMAQI
16th Jul 2026548 PMAQI
16th Jul 2026529 PMAQI
16th Jul 20264810 PMAQI
16th Jul 20264811 PMAQI
17th Jul 20265212 AMAQI
17th Jul 2026401 AMAQI
17th Jul 2026522 AMAQI
17th Jul 2026523 AMAQI
23°C16/32°C
17th Jul 2026484 AMAQI
17th Jul 2026545 AMAQI
17th Jul 2026466 AMAQI
17th Jul 2026407 AMAQI
17th Jul 2026388 AMAQI
17th Jul 2026369 AMAQI
17th Jul 20263310 AMAQI
17th Jul 20262411 AMAQI
17th Jul 20262812 PMAQI
17th Jul 2026241 PMAQI
17th Jul 2026262 PMAQI
17th Jul 2026263 PMAQI
17th Jul 2026544 PMAQI
17th Jul 2026575 PMAQI
17th Jul 2026536 PMAQI
17th Jul 2026607 PMAQI
17th Jul 2026598 PMAQI
17th Jul 2026709 PMAQI
17th Jul 20266010 PMAQI
17th Jul 20266611 PMAQI
18th Jul 20265812 AMAQI
18th Jul 2026531 AMAQI
18th Jul 2026522 AMAQI
18th Jul 2026513 AMAQI
22°C17/29°C
18th Jul 2026504 AMAQI
18th Jul 2026535 AMAQI
18th Jul 2026526 AMAQI
18th Jul 2026527 AMAQI
18th Jul 2026528 AMAQI
18th Jul 2026539 AMAQI
18th Jul 20264210 AMAQI
18th Jul 20263811 AMAQI
18th Jul 20263812 PMAQI
18th Jul 2026271 PMAQI
18th Jul 2026332 PMAQI
18th Jul 2026313 PMAQI
18th Jul 2026314 PMAQI
18th Jul 2026295 PMAQI
18th Jul 2026236 PMAQI
18th Jul 2026257 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026239 PMAQI
18th Jul 20262510 PMAQI
18th Jul 20262111 PMAQI
19th Jul 20262512 AMAQI
19th Jul 2026231 AMAQI
19th Jul 2026212 AMAQI
19th Jul 2026213 AMAQI
23°C19/27°C
19th Jul 2026234 AMAQI
19th Jul 2026215 AMAQI
19th Jul 2026216 AMAQI
19th Jul 2026237 AMAQI
19th Jul 2026218 AMAQI
19th Jul 2026219 AMAQI
19th Jul 20262110 AMAQI
19th Jul 20262111 AMAQI
19th Jul 20262312 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026214 PMAQI
19th Jul 2026275 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026297 PMAQI
19th Jul 2026298 PMAQI
19th Jul 2026319 PMAQI
19th Jul 20262710 PMAQI
19th Jul 20262311 PMAQI
20th Jul 20262312 AMAQI
20th Jul 2026351 AMAQI
20th Jul 2026272 AMAQI
20th Jul 2026363 AMAQI
23°C16/29°C
20th Jul 2026294 AMAQI
20th Jul 2026385 AMAQI
20th Jul 2026336 AMAQI
20th Jul 2026347 AMAQI
20th Jul 2026338 AMAQI
20th Jul 2026369 AMAQI
20th Jul 20265210 AMAQI
20th Jul 20265611 AMAQI
20th Jul 20265112 PMAQI
20th Jul 2026481 PMAQI
20th Jul 2026362 PMAQI
20th Jul 2026303 PMAQI
20th Jul 2026254 PMAQI
20th Jul 2026385 PMAQI
20th Jul 2026426 PMAQI
20th Jul 2026487 PMAQI
20th Jul 2026408 PMAQI
20th Jul 2026429 PMAQI
20th Jul 20264410 PMAQI
20th Jul 20263811 PMAQI
21st Jul 20263412 AMAQI
21st Jul 2026291 AMAQI
21st Jul 2026292 AMAQI
21st Jul 2026423 AMAQI
23°C16/31°C
21st Jul 2026254 AMAQI
21st Jul 2026345 AMAQI
21st Jul 2026366 AMAQI
21st Jul 2026367 AMAQI
21st Jul 2026338 AMAQI
21st Jul 2026409 AMAQI
21st Jul 20264210 AMAQI
21st Jul 20265511 AMAQI
21st Jul 2026601 PMAQI
21st Jul 2026682 PMAQI
21st Jul 2026653 PMAQI
21st Jul 2026644 PMAQI
21st Jul 2026585 PMAQI
21st Jul 2026696 PMAQI
21st Jul 2026987 PMAQI
21st Jul 2026708 PMAQI
21st Jul 2026679 PMAQI
21st Jul 20266910 PMAQI
21st Jul 20266911 PMAQI
22nd Jul 20266212 AMAQI
22nd Jul 2026621 AMAQI
22nd Jul 2026632 AMAQI
22nd Jul 2026603 AMAQI
23°C16/33°C
22nd Jul 2026624 AMAQI
22nd Jul 2026625 AMAQI
22nd Jul 2026606 AMAQI
22nd Jul 2026627 AMAQI
22nd Jul 2026658 AMAQI
22nd Jul 2026669 AMAQI
22nd Jul 20266810 AMAQI
22nd Jul 20267411 AMAQI
22nd Jul 20268012 PMAQI
22nd Jul 2026741 PMAQI
22nd Jul 2026812 PMAQI
22nd Jul 2026793 PMAQI
22nd Jul 2026764 PMAQI
22nd Jul 2026835 PMAQI
22nd Jul 2026726 PMAQI
22nd Jul 2026737 PMAQI
22nd Jul 2026698 PMAQI
22nd Jul 2026719 PMAQI
22nd Jul 20266210 PMAQI
22nd Jul 20265911 PMAQI
23rd Jul 20266012 AMAQI
23rd Jul 2026641 AMAQI
23rd Jul 2026592 AMAQI
23rd Jul 2026633 AMAQI
25°C17/34°C
23rd Jul 2026574 AMAQI
23rd Jul 2026575 AMAQI
23rd Jul 2026516 AMAQI
23rd Jul 2026467 AMAQI
23rd Jul 2026428 AMAQI
23rd Jul 2026389 AMAQI
23rd Jul 20262910 AMAQI
23rd Jul 20262911 AMAQI
23rd Jul 20262312 PMAQI
23rd Jul 2026321 PMAQI
23rd Jul 2026422 PMAQI
23rd Jul 2026213 PMAQI
23rd Jul 2026274 PMAQI
23rd Jul 2026315 PMAQI
23rd Jul 2026496 PMAQI
23rd Jul 2026497 PMAQI
23rd Jul 2026568 PMAQI
23rd Jul 2026539 PMAQI
23rd Jul 20265210 PMAQI
23rd Jul 20264811 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026361 AMAQI
24th Jul 2026292 AMAQI
24th Jul 2026273 AMAQI
25°C16/35°C
24th Jul 2026274 AMAQI
24th Jul 2026295 AMAQI
24th Jul 2026336 AMAQI
24th Jul 2026367 AMAQI
24th Jul 2026338 AMAQI
24th Jul 2026339 AMAQI
24th Jul 20263310 AMAQI
24th Jul 20263611 AMAQI
24th Jul 20263312 PMAQI
24th Jul 2026291 PMAQI
24th Jul 2026322 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026274 PMAQI
24th Jul 2026335 PMAQI
24th Jul 2026506 PMAQI
24th Jul 2026537 PMAQI
24th Jul 2026548 PMAQI
24th Jul 2026489 PMAQI
24th Jul 20265310 PMAQI
24th Jul 20265311 PMAQI
25th Jul 20265112 AMAQI
25th Jul 2026521 AMAQI
25th Jul 2026562 AMAQI
25th Jul 2026563 AMAQI
24°C16/33°C
25th Jul 2026554 AMAQI
25th Jul 2026565 AMAQI
25th Jul 2026526 AMAQI
25th Jul 2026557 AMAQI
25th Jul 2026568 AMAQI
25th Jul 2026589 AMAQI
25th Jul 20265810 AMAQI
25th Jul 20265511 AMAQI
25th Jul 20265712 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026422 PMAQI
25th Jul 2026383 PMAQI
25th Jul 2026384 PMAQI
25th Jul 2026365 PMAQI
25th Jul 2026426 PMAQI
25th Jul 2026387 PMAQI
25th Jul 2026448 PMAQI
25th Jul 2026489 PMAQI
25th Jul 20264410 PMAQI
25th Jul 20265011 PMAQI
26th Jul 20264012 AMAQI
26th Jul 2026501 AMAQI
26th Jul 2026542 AMAQI
26th Jul 2026533 AMAQI
23°C15/34°C
26th Jul 2026524 AMAQI
26th Jul 2026485 AMAQI
26th Jul 2026506 AMAQI
26th Jul 2026487 AMAQI
26th Jul 2026448 AMAQI
26th Jul 2026509 AMAQI
26th Jul 20265110 AMAQI
26th Jul 20265411 AMAQI
26th Jul 20264812 PMAQI
26th Jul 2026461 PMAQI
26th Jul 2026422 PMAQI
26th Jul 2026423 PMAQI
26th Jul 2026334 PMAQI
26th Jul 2026365 PMAQI
26th Jul 2026406 PMAQI
26th Jul 2026427 PMAQI
26th Jul 2026338 PMAQI
26th Jul 2026299 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262511 PMAQI
27th Jul 20262712 AMAQI
27th Jul 2026251 AMAQI
27th Jul 2026252 AMAQI
27th Jul 2026233 AMAQI
21°C15/31°C
27th Jul 2026234 AMAQI
27th Jul 2026215 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026217 AMAQI
27th Jul 2026318 AMAQI
27th Jul 2026239 AMAQI
27th Jul 20265510 AMAQI
27th Jul 20265511 AMAQI
27th Jul 20265612 PMAQI
27th Jul 2026341 PMAQI
27th Jul 2026422 PMAQI
27th Jul 2026323 PMAQI
27th Jul 2026484 PMAQI
27th Jul 2026465 PMAQI
27th Jul 2026426 PMAQI
27th Jul 2026447 PMAQI
27th Jul 2026428 PMAQI
27th Jul 2026459 PMAQI
27th Jul 20264610 PMAQI
27th Jul 20263811 PMAQI
28th Jul 20263612 AMAQI
28th Jul 2026291 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026343 AMAQI
21°C14/31°C
28th Jul 2026254 AMAQI
28th Jul 2026255 AMAQI
28th Jul 2026316 AMAQI
28th Jul 2026297 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026279 AMAQI
28th Jul 20263810 AMAQI
28th Jul 20265711 AMAQI
28th Jul 20264212 PMAQI
28th Jul 2026381 PMAQI
28th Jul 2026482 PMAQI
28th Jul 2026483 PMAQI
28th Jul 2026384 PMAQI
28th Jul 2026485 PMAQI
28th Jul 2026386 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026268 PMAQI
28th Jul 2026389 PMAQI
28th Jul 20264010 PMAQI
28th Jul 20264411 PMAQI
29th Jul 20263212 AMAQI
29th Jul 2026291 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026233 AMAQI
20°C14/26°C
29th Jul 2026294 AMAQI
29th Jul 2026365 AMAQI
29th Jul 2026326 AMAQI
29th Jul 2026277 AMAQI
29th Jul 2026278 AMAQI
29th Jul 2026319 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20264811 AMAQI
29th Jul 20263612 PMAQI
29th Jul 2026321 PMAQI
29th Jul 2026332 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026324 PMAQI
29th Jul 2026405 PMAQI
29th Jul 2026466 PMAQI
29th Jul 2026487 PMAQI
29th Jul 2026368 PMAQI
29th Jul 2026349 PMAQI
29th Jul 20263410 PMAQI
29th Jul 20263111 PMAQI
30th Jul 20262712 AMAQI
30th Jul 2026291 AMAQI
30th Jul 2026382 AMAQI
30th Jul 2026483 AMAQI
21°C13/29°C
30th Jul 2026364 AMAQI
4 AM30th Jul 2026475 AMAQI
30th Jul 2026446 AMAQI
30th Jul 2026497 AMAQI
30th Jul 2026388 AMAQI
30th Jul 2026409 AMAQI
30th Jul 20264010 AMAQI
30th Jul 20264011 AMAQI
11 AM30th Jul 20262712 PMAQI
30th Jul 2026401 PMAQI
30th Jul 2026342 PMAQI
30th Jul 2026343 PMAQI
30th Jul 2026364 PMAQI
30th Jul 2026345 PMAQI
30th Jul 2026316 PMAQI
30th Jul 2026257 PMAQI
7 PM30th Jul 2026298 PMAQI
30th Jul 2026409 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20264611 PMAQI
11 PM3 AM
23°C15/32°C
Day time
Avg. Highest Time
10 AM - 11 AM
36AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
3 PM
30AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 11 AM (Avg. 36), while the lowest AQI was between 3 PM to 3 PM (Avg. 30).
Night time
Avg. Highest Time
12 AM - 11 PM
35AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
35AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 35), while the lowest AQI was between 12 AM to 11 PM (Avg. 35).
2026 Days Vs Air Quality
Iida, Nagano, Japan
2026
87%
184
13%
27
Total number of days with different AQI categories in last 211 days in 2026 (154 days remaining)
Good
184 DaysModerate
27 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 211 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
Iida, 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
17AQI (US)
17AQI (US)
4th January 2026
24AQI (US)
24AQI (US)
5th January 2026
36AQI (US)
36AQI (US)
6th January 2026
22AQI (US)
22AQI (US)
7th January 2026
26AQI (US)
26AQI (US)
8th January 2026
28AQI (US)
28AQI (US)
9th January 2026
21AQI (US)
21AQI (US)
10th January 2026
34AQI (US)
34AQI (US)
11th January 2026
29AQI (US)
29AQI (US)
12th January 2026
19AQI (US)
19AQI (US)
13th January 2026
23AQI (US)
23AQI (US)
14th January 2026
16AQI (US)
16AQI (US)
15th January 2026
34AQI (US)
34AQI (US)
16th January 2026
37AQI (US)
37AQI (US)
17th January 2026
47AQI (US)
47AQI (US)
18th January 2026
43AQI (US)
43AQI (US)
19th January 2026
52AQI (US)
52AQI (US)
20th January 2026
34AQI (US)
34AQI (US)
21st January 2026
16AQI (US)
16AQI (US)
22nd January 2026
21AQI (US)
21AQI (US)
23rd January 2026
32AQI (US)
32AQI (US)
24th January 2026
39AQI (US)
39AQI (US)
25th January 2026
42AQI (US)
42AQI (US)
26th January 2026
23AQI (US)
23AQI (US)
27th January 2026
34AQI (US)
34AQI (US)
28th January 2026
27AQI (US)
27AQI (US)
29th January 2026
20AQI (US)
20AQI (US)
30th January 2026
32AQI (US)
32AQI (US)
31st January 2026
32AQI (US)
32AQI (US)
1st February 2026
30AQI (US)
30AQI (US)
2nd February 2026
41AQI (US)
41AQI (US)
3rd February 2026
30AQI (US)
30AQI (US)
4th February 2026
32AQI (US)
32AQI (US)
5th February 2026
31AQI (US)
31AQI (US)
6th February 2026
37AQI (US)
37AQI (US)
7th February 2026
19AQI (US)
19AQI (US)
8th February 2026
21AQI (US)
21AQI (US)
9th February 2026
32AQI (US)
32AQI (US)
10th February 2026
34AQI (US)
34AQI (US)
11th February 2026
39AQI (US)
39AQI (US)
12th February 2026
36AQI (US)
36AQI (US)
13th February 2026
46AQI (US)
46AQI (US)
14th February 2026
51AQI (US)
51AQI (US)
15th February 2026
52AQI (US)
52AQI (US)
16th February 2026
43AQI (US)
43AQI (US)
17th February 2026
20AQI (US)
20AQI (US)
18th February 2026
20AQI (US)
20AQI (US)
19th February 2026
29AQI (US)
29AQI (US)
20th February 2026
30AQI (US)
30AQI (US)
21st February 2026
41AQI (US)
41AQI (US)
22nd February 2026
41AQI (US)
41AQI (US)
23rd February 2026
43AQI (US)
43AQI (US)
24th February 2026
50AQI (US)
50AQI (US)
25th February 2026
27AQI (US)
27AQI (US)
26th February 2026
19AQI (US)
19AQI (US)
27th February 2026
44AQI (US)
44AQI (US)
28th February 2026
44AQI (US)
44AQI (US)
1st March 2026
24AQI (US)
24AQI (US)
2nd March 2026
67AQI (US)
67AQI (US)
3rd March 2026
40AQI (US)
40AQI (US)
4th March 2026
11AQI (US)
11AQI (US)
5th March 2026
50AQI (US)
50AQI (US)
6th March 2026
53AQI (US)
53AQI (US)
7th March 2026
44AQI (US)
44AQI (US)
8th March 2026
42AQI (US)
42AQI (US)
9th March 2026
47AQI (US)
47AQI (US)
10th March 2026
58AQI (US)
58AQI (US)
11th March 2026
56AQI (US)
56AQI (US)
12th March 2026
63AQI (US)
63AQI (US)
13th March 2026
40AQI (US)
40AQI (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
50AQI (US)
50AQI (US)
18th March 2026
54AQI (US)
54AQI (US)
19th March 2026
34AQI (US)
34AQI (US)
20th March 2026
35AQI (US)
35AQI (US)
21st March 2026
46AQI (US)
46AQI (US)
22nd March 2026
44AQI (US)
44AQI (US)
23rd March 2026
33AQI (US)
33AQI (US)
24th March 2026
47AQI (US)
47AQI (US)
25th March 2026
45AQI (US)
45AQI (US)
26th March 2026
10AQI (US)
10AQI (US)
27th March 2026
25AQI (US)
25AQI (US)
28th March 2026
60AQI (US)
60AQI (US)
29th March 2026
60AQI (US)
60AQI (US)
30th March 2026
46AQI (US)
46AQI (US)
31st March 2026
15AQI (US)
15AQI (US)
1st April 2026
20AQI (US)
20AQI (US)
2nd April 2026
38AQI (US)
38AQI (US)
3rd April 2026
46AQI (US)
46AQI (US)
4th April 2026
44AQI (US)
44AQI (US)
5th April 2026
33AQI (US)
33AQI (US)
6th April 2026
29AQI (US)
29AQI (US)
7th April 2026
31AQI (US)
31AQI (US)
8th April 2026
25AQI (US)
25AQI (US)
9th April 2026
29AQI (US)
29AQI (US)
10th April 2026
44AQI (US)
44AQI (US)
11th April 2026
35AQI (US)
35AQI (US)
12th April 2026
30AQI (US)
30AQI (US)
13th April 2026
31AQI (US)
31AQI (US)
14th April 2026
40AQI (US)
40AQI (US)
15th April 2026
36AQI (US)
36AQI (US)
16th April 2026
33AQI (US)
33AQI (US)
17th April 2026
36AQI (US)
36AQI (US)
18th April 2026
32AQI (US)
32AQI (US)
19th April 2026
31AQI (US)
31AQI (US)
20th April 2026
37AQI (US)
37AQI (US)
21st April 2026
39AQI (US)
39AQI (US)
22nd April 2026
45AQI (US)
45AQI (US)
23rd April 2026
36AQI (US)
36AQI (US)
24th April 2026
29AQI (US)
29AQI (US)
25th April 2026
46AQI (US)
46AQI (US)
26th April 2026
52AQI (US)
52AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
43AQI (US)
43AQI (US)
29th April 2026
40AQI (US)
40AQI (US)
30th April 2026
36AQI (US)
36AQI (US)
1st May 2026
46AQI (US)
46AQI (US)
2nd May 2026
51AQI (US)
51AQI (US)
3rd May 2026
43AQI (US)
43AQI (US)
4th May 2026
23AQI (US)
23AQI (US)
5th May 2026
23AQI (US)
23AQI (US)
6th May 2026
28AQI (US)
28AQI (US)
7th May 2026
29AQI (US)
29AQI (US)
8th May 2026
28AQI (US)
28AQI (US)
9th May 2026
26AQI (US)
26AQI (US)
10th May 2026
27AQI (US)
27AQI (US)
11th May 2026
29AQI (US)
29AQI (US)
12th May 2026
33AQI (US)
33AQI (US)
13th May 2026
39AQI (US)
39AQI (US)
14th May 2026
32AQI (US)
32AQI (US)
15th May 2026
39AQI (US)
39AQI (US)
16th May 2026
85AQI (US)
85AQI (US)
17th May 2026
68AQI (US)
68AQI (US)
18th May 2026
54AQI (US)
54AQI (US)
19th May 2026
49AQI (US)
49AQI (US)
20th May 2026
62AQI (US)
62AQI (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
41AQI (US)
41AQI (US)
27th May 2026
25AQI (US)
25AQI (US)
28th May 2026
25AQI (US)
25AQI (US)
29th May 2026
24AQI (US)
24AQI (US)
30th May 2026
23AQI (US)
23AQI (US)
31st May 2026
25AQI (US)
25AQI (US)
1st June 2026
28AQI (US)
28AQI (US)
2nd June 2026
30AQI (US)
30AQI (US)
3rd June 2026
24AQI (US)
24AQI (US)
4th June 2026
23AQI (US)
23AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
22AQI (US)
22AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
23AQI (US)
23AQI (US)
10th June 2026
21AQI (US)
21AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
25AQI (US)
25AQI (US)
13th June 2026
26AQI (US)
26AQI (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
25AQI (US)
25AQI (US)
19th June 2026
27AQI (US)
27AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
17AQI (US)
17AQI (US)
22nd June 2026
18AQI (US)
18AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
22AQI (US)
22AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
28AQI (US)
28AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
27AQI (US)
27AQI (US)
30th June 2026
51AQI (US)
51AQI (US)
1st July 2026
38AQI (US)
38AQI (US)
2nd July 2026
13AQI (US)
13AQI (US)
3rd July 2026
18AQI (US)
18AQI (US)
4th July 2026
28AQI (US)
28AQI (US)
5th July 2026
22AQI (US)
22AQI (US)
6th July 2026
12AQI (US)
12AQI (US)
7th July 2026
16AQI (US)
16AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
27AQI (US)
27AQI (US)
10th July 2026
33AQI (US)
33AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
27AQI (US)
27AQI (US)
13th July 2026
26AQI (US)
26AQI (US)
14th July 2026
28AQI (US)
28AQI (US)
15th July 2026
37AQI (US)
37AQI (US)
16th July 2026
54AQI (US)
54AQI (US)
17th July 2026
46AQI (US)
46AQI (US)
18th July 2026
39AQI (US)
39AQI (US)
19th July 2026
24AQI (US)
24AQI (US)
20th July 2026
38AQI (US)
38AQI (US)
21st July 2026
52AQI (US)
52AQI (US)
22nd July 2026
69AQI (US)
69AQI (US)
23rd July 2026
45AQI (US)
45AQI (US)
24th July 2026
37AQI (US)
37AQI (US)
25th July 2026
49AQI (US)
49AQI (US)
26th July 2026
43AQI (US)
43AQI (US)
27th July 2026
36AQI (US)
36AQI (US)
28th July 2026
36AQI (US)
36AQI (US)
29th July 2026
33AQI (US)
33AQI (US)
30th July 2026
37AQI (US)
37AQI (US)
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
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
29AQI (US)
35AQI (US)
44AQI (US)
37AQI (US)
41AQI (US)
25AQI (US)
34AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
30
1
26
2
21
10
29
1
22
9
29
1
27
3
184
27
Highest AQI (US) recorded in
March44AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202539AQI (US)
28
3
26
2
23
8
30
31
26
4
20
11
23
8
30
23
8
21
9
27
4
308
57
Highest AQI (US) recorded in
July46AQI (US)
Lowest AQI (US) recorded in
April25AQI (US)
202434AQI (US)
19
4
5
4
1
14
1
28
2
31
28
3
24
5
30
1
30
31
248
13
Highest AQI (US) recorded in
June42AQI (US)
Lowest AQI (US) recorded in
January16AQI (US)
202317AQI (US)
3
31
34
Highest AQI (US) recorded in
December18AQI (US)
Lowest AQI (US) recorded in
November16AQI (US)
202027AQI (US)
13
18
3
1
1
33
3
Highest AQI (US) recorded in
April30AQI (US)
Lowest AQI (US) recorded in
May8AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2025(Avg.)
39AQI (US)Least Polluted Year Recorded
2023(Avg.)
17AQI (US)Iida's annual 2026 AQI (US) (35) shows an average percentage change of 32.04% (worsened AQI (US)) compared to previous years: 2020 (27), 2023 (17), 2024 (34), 2025 (39).
