Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Ina, 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

Ina, Nagano, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Jul 2022
69AQI
Lowest AQI recorded on
6th Jul 2026
12AQI

Same Day Analysis (31st July):
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: 30th Jul - 31st Jul 2026

Ina, Nagano, Japan

AQI
Day
Night
.

4 AM30th Jul 2026

7 PM

3 AM31st Jul 2026

Day time
Avg. Highest Time
2PM30th Jul

32AQI

Avg. Lowest Time
5PM30th Jul

21AQI

Night time
Avg. Highest Time
7PM30th Jul

23AQI

Avg. Lowest Time
2AM31st Jul

21AQI

In the last 24 hours,

Ina's AQI reached its highest point of 32 at 2 PM during the Day, while the lowest point, 21, was recorded at 2 AM during the Night between 30th Jul and 31st Jul 2026.

Day & Night AQI Trend : Jul 2026

Ina, Nagano, Japan

Jul
02nd - 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 - 31st31st
Day
Night
2nd Jul 2026244 AMAQI
2nd Jul 2026245 AMAQI
2nd Jul 2026226 AMAQI
2nd Jul 2026227 AMAQI
2nd Jul 202688 AMAQI
2nd Jul 202689 AMAQI
2nd Jul 2026610 AMAQI
2nd Jul 2026811 AMAQI
2nd Jul 2026812 PMAQI
2nd Jul 202661 PMAQI
2nd Jul 202672 PMAQI
2nd Jul 202673 PMAQI
2nd Jul 202694 PMAQI
2nd Jul 202685 PMAQI
2nd Jul 202686 PMAQI
2nd Jul 202697 PMAQI
2nd Jul 2026108 PMAQI
2nd Jul 2026109 PMAQI
2nd Jul 2026810 PMAQI
2nd Jul 2026811 PMAQI
3rd Jul 2026812 AMAQI
3rd Jul 202681 AMAQI
3rd Jul 202682 AMAQI
3rd Jul 202683 AMAQI

17°C13/22°C

3rd Jul 2026104 AMAQI
3rd Jul 2026105 AMAQI
3rd Jul 2026106 AMAQI
3rd Jul 202677 AMAQI
3rd Jul 202688 AMAQI
3rd Jul 202689 AMAQI
3rd Jul 2026710 AMAQI
3rd Jul 2026811 AMAQI
3rd Jul 2026812 PMAQI
3rd Jul 2026101 PMAQI
3rd Jul 2026102 PMAQI
3rd Jul 2026103 PMAQI
3rd Jul 2026124 PMAQI
3rd Jul 2026135 PMAQI
3rd Jul 2026256 PMAQI
3rd Jul 2026227 PMAQI
3rd Jul 2026218 PMAQI
3rd Jul 2026259 PMAQI
3rd Jul 20261910 PMAQI
3rd Jul 20262611 PMAQI
4th Jul 20262212 AMAQI
4th Jul 2026221 AMAQI
4th Jul 2026232 AMAQI
4th Jul 2026263 AMAQI

18°C12/24°C

4th Jul 2026244 AMAQI
4th Jul 2026245 AMAQI
4th Jul 2026246 AMAQI
4th Jul 2026247 AMAQI
4th Jul 2026248 AMAQI
4th Jul 2026249 AMAQI
4th Jul 20262210 AMAQI
4th Jul 20262311 AMAQI
4th Jul 20261812 PMAQI
4th Jul 2026221 PMAQI
4th Jul 2026242 PMAQI
4th Jul 2026223 PMAQI
4th Jul 2026254 PMAQI
4th Jul 2026265 PMAQI
4th Jul 2026246 PMAQI
4th Jul 2026247 PMAQI
4th Jul 2026228 PMAQI
4th Jul 2026249 PMAQI
4th Jul 20262310 PMAQI
4th Jul 20262411 PMAQI
5th Jul 20262612 AMAQI
5th Jul 2026261 AMAQI
5th Jul 2026222 AMAQI
5th Jul 2026233 AMAQI

18°C13/23°C

5th Jul 2026224 AMAQI
5th Jul 2026225 AMAQI
5th Jul 2026236 AMAQI
5th Jul 2026227 AMAQI
5th Jul 2026228 AMAQI
5th Jul 2026169 AMAQI
5th Jul 20261910 AMAQI
5th Jul 20261611 AMAQI
5th Jul 20261612 PMAQI
5th Jul 2026181 PMAQI
5th Jul 2026212 PMAQI
5th Jul 2026203 PMAQI
5th Jul 2026204 PMAQI
5th Jul 2026155 PMAQI
5th Jul 2026166 PMAQI
5th Jul 2026137 PMAQI
5th Jul 2026208 PMAQI
5th Jul 2026169 PMAQI
5th Jul 2026810 PMAQI
5th Jul 20261311 PMAQI
6th Jul 2026812 AMAQI
6th Jul 2026161 AMAQI
6th Jul 2026232 AMAQI
6th Jul 2026163 AMAQI

18°C13/22°C

6th Jul 2026184 AMAQI
6th Jul 202685 AMAQI
6th Jul 202686 AMAQI
6th Jul 202687 AMAQI
6th Jul 2026148 AMAQI
6th Jul 2026129 AMAQI
6th Jul 20262210 AMAQI
6th Jul 20262711 AMAQI
6th Jul 20261212 PMAQI
6th Jul 202681 PMAQI
6th Jul 202682 PMAQI
6th Jul 2026113 PMAQI
6th Jul 202684 PMAQI
6th Jul 2026105 PMAQI
6th Jul 202686 PMAQI
6th Jul 2026147 PMAQI
6th Jul 2026118 PMAQI
6th Jul 202689 PMAQI
6th Jul 20261510 PMAQI
6th Jul 20261211 PMAQI
7th Jul 2026612 AMAQI
7th Jul 2026151 AMAQI
7th Jul 202682 AMAQI
7th Jul 2026123 AMAQI

18°C16/20°C

7th Jul 202684 AMAQI
7th Jul 2026165 AMAQI
7th Jul 2026186 AMAQI
7th Jul 2026127 AMAQI
7th Jul 2026138 AMAQI
7th Jul 2026119 AMAQI
7th Jul 20261410 AMAQI
7th Jul 20261411 AMAQI
7th Jul 20261112 PMAQI
7th Jul 202681 PMAQI
7th Jul 2026122 PMAQI
7th Jul 2026283 PMAQI
7th Jul 2026204 PMAQI
7th Jul 2026255 PMAQI
7th Jul 2026256 PMAQI
7th Jul 2026167 PMAQI
7th Jul 2026218 PMAQI
7th Jul 2026259 PMAQI
7th Jul 20262110 PMAQI
7th Jul 20261811 PMAQI
8th Jul 20262512 AMAQI
8th Jul 2026261 AMAQI
8th Jul 2026262 AMAQI
8th Jul 2026283 AMAQI

20°C15/26°C

8th Jul 2026264 AMAQI
8th Jul 2026245 AMAQI
8th Jul 2026226 AMAQI
8th Jul 2026287 AMAQI
8th Jul 2026208 AMAQI
8th Jul 2026189 AMAQI
8th Jul 20262410 AMAQI
8th Jul 20262111 AMAQI
8th Jul 20261912 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026192 PMAQI
8th Jul 2026253 PMAQI
8th Jul 2026224 PMAQI
8th Jul 2026205 PMAQI
8th Jul 2026216 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026208 PMAQI
8th Jul 2026229 PMAQI
8th Jul 20262310 PMAQI
8th Jul 20262611 PMAQI
9th Jul 20263012 AMAQI
9th Jul 2026301 AMAQI
9th Jul 2026302 AMAQI
9th Jul 2026273 AMAQI

22°C18/29°C

9th Jul 2026274 AMAQI
9th Jul 2026285 AMAQI
9th Jul 2026256 AMAQI
9th Jul 2026257 AMAQI
9th Jul 2026268 AMAQI
9th Jul 2026239 AMAQI
9th Jul 20262210 AMAQI
9th Jul 20262111 AMAQI
9th Jul 20262112 PMAQI
9th Jul 2026191 PMAQI
9th Jul 2026222 PMAQI
9th Jul 2026233 PMAQI
9th Jul 2026254 PMAQI
9th Jul 2026265 PMAQI
9th Jul 2026246 PMAQI
9th Jul 2026267 PMAQI
9th Jul 2026278 PMAQI
9th Jul 2026259 PMAQI
9th Jul 20262910 PMAQI
9th Jul 20263011 PMAQI
10th Jul 20263012 AMAQI
10th Jul 2026301 AMAQI
10th Jul 2026282 AMAQI
10th Jul 2026303 AMAQI

23°C17/31°C

10th Jul 2026274 AMAQI
10th Jul 2026285 AMAQI
10th Jul 2026306 AMAQI
10th Jul 2026587 AMAQI
10th Jul 2026568 AMAQI
10th Jul 2026599 AMAQI
10th Jul 20263210 AMAQI
10th Jul 20262811 AMAQI
10th Jul 20262912 PMAQI
10th Jul 2026261 PMAQI
10th Jul 2026242 PMAQI
10th Jul 2026243 PMAQI
10th Jul 2026264 PMAQI
10th Jul 2026305 PMAQI
10th Jul 2026306 PMAQI
10th Jul 2026317 PMAQI
10th Jul 2026318 PMAQI
10th Jul 2026319 PMAQI
10th Jul 20263410 PMAQI
10th Jul 20263311 PMAQI
11th Jul 20263412 AMAQI
11th Jul 2026341 AMAQI
11th Jul 2026332 AMAQI
11th Jul 2026303 AMAQI

22°C14/32°C

11th Jul 2026304 AMAQI
11th Jul 2026325 AMAQI
11th Jul 2026336 AMAQI
11th Jul 2026337 AMAQI
11th Jul 2026318 AMAQI
11th Jul 2026349 AMAQI
11th Jul 20263510 AMAQI
11th Jul 20263011 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026261 PMAQI
11th Jul 2026252 PMAQI
11th Jul 2026243 PMAQI
11th Jul 2026264 PMAQI
11th Jul 2026315 PMAQI
11th Jul 2026306 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026258 PMAQI
11th Jul 2026309 PMAQI
11th Jul 20262910 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026302 AMAQI
12th Jul 2026303 AMAQI

22°C14/30°C

12th Jul 2026284 AMAQI
12th Jul 2026295 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026298 AMAQI
12th Jul 2026289 AMAQI
12th Jul 20263110 AMAQI
12th Jul 20263711 AMAQI
12th Jul 20264212 PMAQI
12th Jul 2026301 PMAQI
12th Jul 2026292 PMAQI
12th Jul 2026313 PMAQI
12th Jul 2026204 PMAQI
12th Jul 2026195 PMAQI
12th Jul 2026216 PMAQI
12th Jul 2026197 PMAQI
12th Jul 2026228 PMAQI
12th Jul 2026229 PMAQI
12th Jul 20261910 PMAQI
12th Jul 20262211 PMAQI
13th Jul 20262312 AMAQI
13th Jul 2026251 AMAQI
13th Jul 2026242 AMAQI
13th Jul 2026213 AMAQI

20°C14/29°C

13th Jul 2026244 AMAQI
13th Jul 2026265 AMAQI
13th Jul 2026266 AMAQI
13th Jul 2026267 AMAQI
13th Jul 2026288 AMAQI
13th Jul 2026279 AMAQI
13th Jul 20262610 AMAQI
13th Jul 20262511 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026221 PMAQI
13th Jul 2026202 PMAQI
13th Jul 2026203 PMAQI
13th Jul 2026234 PMAQI
13th Jul 2026285 PMAQI
13th Jul 2026306 PMAQI
13th Jul 2026307 PMAQI
13th Jul 2026288 PMAQI
13th Jul 2026299 PMAQI
13th Jul 20263010 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026301 AMAQI
14th Jul 2026302 AMAQI
14th Jul 2026293 AMAQI

20°C15/27°C

14th Jul 2026264 AMAQI
14th Jul 2026305 AMAQI
14th Jul 2026296 AMAQI
14th Jul 2026307 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026309 AMAQI
14th Jul 20263010 AMAQI
14th Jul 20262411 AMAQI
14th Jul 20262412 PMAQI
14th Jul 2026201 PMAQI
14th Jul 2026142 PMAQI
14th Jul 2026163 PMAQI
14th Jul 2026204 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026286 PMAQI
14th Jul 2026277 PMAQI
14th Jul 2026308 PMAQI
14th Jul 2026289 PMAQI
14th Jul 20263110 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263212 AMAQI
15th Jul 2026341 AMAQI
15th Jul 2026322 AMAQI
15th Jul 2026313 AMAQI

22°C14/33°C

15th Jul 2026264 AMAQI
15th Jul 2026305 AMAQI
15th Jul 2026266 AMAQI
15th Jul 2026297 AMAQI
15th Jul 2026308 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20266310 AMAQI
15th Jul 20265811 AMAQI
15th Jul 20264812 PMAQI
15th Jul 2026461 PMAQI
15th Jul 2026322 PMAQI
15th Jul 2026223 PMAQI
15th Jul 2026254 PMAQI
15th Jul 2026265 PMAQI
15th Jul 2026446 PMAQI
15th Jul 2026327 PMAQI
15th Jul 2026488 PMAQI
15th Jul 2026419 PMAQI
15th Jul 20264510 PMAQI
15th Jul 20265211 PMAQI
16th Jul 20265212 AMAQI
16th Jul 2026561 AMAQI
16th Jul 2026582 AMAQI
16th Jul 2026643 AMAQI

23°C15/33°C

16th Jul 2026644 AMAQI
16th Jul 2026585 AMAQI
16th Jul 2026606 AMAQI
16th Jul 2026587 AMAQI
16th Jul 2026548 AMAQI
16th Jul 2026549 AMAQI
16th Jul 20265210 AMAQI
16th Jul 20264711 AMAQI
16th Jul 20264312 PMAQI
16th Jul 2026421 PMAQI
16th Jul 2026402 PMAQI
16th Jul 2026473 PMAQI
16th Jul 2026434 PMAQI
16th Jul 2026485 PMAQI
16th Jul 2026516 PMAQI
16th Jul 2026507 PMAQI
16th Jul 2026628 PMAQI
16th Jul 2026569 PMAQI
16th Jul 20265110 PMAQI
16th Jul 20265411 PMAQI
17th Jul 20265812 AMAQI
17th Jul 2026401 AMAQI
17th Jul 2026532 AMAQI
17th Jul 2026523 AMAQI

22°C16/32°C

17th Jul 2026484 AMAQI
17th Jul 2026525 AMAQI
17th Jul 2026496 AMAQI
17th Jul 2026397 AMAQI
17th Jul 2026398 AMAQI
17th Jul 2026349 AMAQI
17th Jul 20263010 AMAQI
17th Jul 20262511 AMAQI
17th Jul 20262612 PMAQI
17th Jul 2026251 PMAQI
17th Jul 2026252 PMAQI
17th Jul 2026243 PMAQI
17th Jul 2026484 PMAQI
17th Jul 2026495 PMAQI
17th Jul 2026486 PMAQI
17th Jul 2026517 PMAQI
17th Jul 2026548 PMAQI
17th Jul 2026549 PMAQI
17th Jul 20265410 PMAQI
17th Jul 20265511 PMAQI
18th Jul 20265212 AMAQI
18th Jul 2026521 AMAQI
18th Jul 2026512 AMAQI
18th Jul 2026513 AMAQI

22°C16/28°C

18th Jul 2026524 AMAQI
18th Jul 2026525 AMAQI
18th Jul 2026526 AMAQI
18th Jul 2026547 AMAQI
18th Jul 2026528 AMAQI
18th Jul 2026529 AMAQI
18th Jul 20265210 AMAQI
18th Jul 20265211 AMAQI
18th Jul 20265012 PMAQI
18th Jul 2026341 PMAQI
18th Jul 2026342 PMAQI
18th Jul 2026343 PMAQI
18th Jul 2026364 PMAQI
18th Jul 2026345 PMAQI
18th Jul 2026346 PMAQI
18th Jul 2026327 PMAQI
18th Jul 2026318 PMAQI
18th Jul 2026329 PMAQI
18th Jul 20263110 PMAQI
18th Jul 20263211 PMAQI
19th Jul 20263112 AMAQI
19th Jul 2026281 AMAQI
19th Jul 2026272 AMAQI
19th Jul 2026253 AMAQI

22°C16/28°C

19th Jul 2026264 AMAQI
19th Jul 2026255 AMAQI
19th Jul 2026246 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 2026231 PMAQI
19th Jul 2026232 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026244 PMAQI
19th Jul 2026245 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026267 PMAQI
19th Jul 2026258 PMAQI
19th Jul 2026229 PMAQI
19th Jul 20262310 PMAQI
19th Jul 20262411 PMAQI
20th Jul 20262412 AMAQI
20th Jul 2026251 AMAQI
20th Jul 2026252 AMAQI
20th Jul 2026253 AMAQI

23°C17/30°C

20th Jul 2026254 AMAQI
20th Jul 2026245 AMAQI
20th Jul 2026256 AMAQI
20th Jul 2026237 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262610 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20262612 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026252 PMAQI
20th Jul 2026263 PMAQI
20th Jul 2026294 PMAQI
20th Jul 2026285 PMAQI
20th Jul 2026296 PMAQI
20th Jul 2026287 PMAQI
20th Jul 2026298 PMAQI
20th Jul 2026349 PMAQI
20th Jul 20263210 PMAQI
20th Jul 20263011 PMAQI
21st Jul 20263012 AMAQI
21st Jul 2026301 AMAQI
21st Jul 2026302 AMAQI
21st Jul 2026323 AMAQI

23°C16/32°C

21st Jul 2026314 AMAQI
21st Jul 2026315 AMAQI
21st Jul 2026316 AMAQI
21st Jul 2026317 AMAQI
21st Jul 2026318 AMAQI
21st Jul 2026319 AMAQI
21st Jul 20263310 AMAQI
21st Jul 20263211 AMAQI
21st Jul 2026331 PMAQI
21st Jul 2026322 PMAQI
21st Jul 2026343 PMAQI
21st Jul 2026344 PMAQI
21st Jul 2026365 PMAQI
21st Jul 2026386 PMAQI
21st Jul 2026827 PMAQI
21st Jul 2026418 PMAQI
21st Jul 2026399 PMAQI
21st Jul 20263810 PMAQI
21st Jul 20263611 PMAQI
22nd Jul 20263012 AMAQI
22nd Jul 2026381 AMAQI
22nd Jul 2026362 AMAQI
22nd Jul 2026323 AMAQI

23°C16/32°C

22nd Jul 2026314 AMAQI
22nd Jul 2026295 AMAQI
22nd Jul 2026286 AMAQI
22nd Jul 2026297 AMAQI
22nd Jul 2026318 AMAQI
22nd Jul 2026289 AMAQI
22nd Jul 20262910 AMAQI
22nd Jul 20262911 AMAQI
22nd Jul 20263212 PMAQI
22nd Jul 2026371 PMAQI
22nd Jul 2026432 PMAQI
22nd Jul 2026473 PMAQI
22nd Jul 2026474 PMAQI
22nd Jul 2026515 PMAQI
22nd Jul 2026576 PMAQI
22nd Jul 2026727 PMAQI
22nd Jul 2026668 PMAQI
22nd Jul 2026649 PMAQI
22nd Jul 20266010 PMAQI
22nd Jul 20265611 PMAQI
23rd Jul 20265512 AMAQI
23rd Jul 2026611 AMAQI
23rd Jul 2026552 AMAQI
23rd Jul 2026543 AMAQI

24°C16/34°C

23rd Jul 2026544 AMAQI
23rd Jul 2026535 AMAQI
23rd Jul 2026466 AMAQI
23rd Jul 2026387 AMAQI
23rd Jul 2026338 AMAQI
23rd Jul 2026309 AMAQI
23rd Jul 20262610 AMAQI
23rd Jul 20262411 AMAQI
23rd Jul 20262012 PMAQI
23rd Jul 2026181 PMAQI
23rd Jul 2026142 PMAQI
23rd Jul 2026183 PMAQI
23rd Jul 2026264 PMAQI
23rd Jul 2026305 PMAQI
23rd Jul 2026466 PMAQI
23rd Jul 2026547 PMAQI
23rd Jul 2026568 PMAQI
23rd Jul 2026549 PMAQI
23rd Jul 20265310 PMAQI
23rd Jul 20265211 PMAQI
24th Jul 20264412 AMAQI
24th Jul 2026381 AMAQI
24th Jul 2026322 AMAQI
24th Jul 2026263 AMAQI

24°C15/35°C

24th Jul 2026274 AMAQI
24th Jul 2026275 AMAQI
24th Jul 2026286 AMAQI
24th Jul 2026287 AMAQI
24th Jul 2026228 AMAQI
24th Jul 2026239 AMAQI
24th Jul 20262710 AMAQI
24th Jul 20262611 AMAQI
24th Jul 20262612 PMAQI
24th Jul 2026211 PMAQI
24th Jul 2026172 PMAQI
24th Jul 2026203 PMAQI
24th Jul 2026244 PMAQI
24th Jul 2026345 PMAQI
24th Jul 2026506 PMAQI
24th Jul 2026547 PMAQI
24th Jul 2026508 PMAQI
24th Jul 2026349 PMAQI
24th Jul 20263210 PMAQI
24th Jul 20262911 PMAQI
25th Jul 20262912 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026292 AMAQI
25th Jul 2026293 AMAQI

23°C15/33°C

25th Jul 2026304 AMAQI
25th Jul 2026315 AMAQI
25th Jul 2026266 AMAQI
25th Jul 2026287 AMAQI
25th Jul 2026288 AMAQI
25th Jul 2026279 AMAQI
25th Jul 20262910 AMAQI
25th Jul 20262711 AMAQI
25th Jul 20262712 PMAQI
25th Jul 2026271 PMAQI
25th Jul 2026262 PMAQI
25th Jul 2026253 PMAQI
25th Jul 2026244 PMAQI
25th Jul 2026245 PMAQI
25th Jul 2026266 PMAQI
25th Jul 2026277 PMAQI
25th Jul 2026268 PMAQI
25th Jul 2026279 PMAQI
25th Jul 20262610 PMAQI
25th Jul 20262511 PMAQI
26th Jul 20262712 AMAQI
26th Jul 2026271 AMAQI
26th Jul 2026252 AMAQI
26th Jul 2026253 AMAQI

22°C14/34°C

26th Jul 2026284 AMAQI
26th Jul 2026285 AMAQI
26th Jul 2026276 AMAQI
26th Jul 2026267 AMAQI
26th Jul 2026268 AMAQI
26th Jul 2026299 AMAQI
26th Jul 20262710 AMAQI
26th Jul 20262711 AMAQI
26th Jul 20262612 PMAQI
26th Jul 2026281 PMAQI
26th Jul 2026282 PMAQI
26th Jul 2026263 PMAQI
26th Jul 2026254 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026256 PMAQI
26th Jul 2026237 PMAQI
26th Jul 2026218 PMAQI
26th Jul 2026289 PMAQI
26th Jul 20262110 PMAQI
26th Jul 20262111 PMAQI
27th Jul 20263212 AMAQI
27th Jul 2026281 AMAQI
27th Jul 2026322 AMAQI
27th Jul 2026273 AMAQI

21°C14/30°C

27th Jul 2026354 AMAQI
27th Jul 2026405 AMAQI
27th Jul 2026326 AMAQI
27th Jul 2026347 AMAQI
27th Jul 2026348 AMAQI
27th Jul 2026389 AMAQI
27th Jul 20262610 AMAQI
27th Jul 20263111 AMAQI
27th Jul 20263512 PMAQI
27th Jul 2026321 PMAQI
27th Jul 2026292 PMAQI
27th Jul 2026273 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026295 PMAQI
27th Jul 2026246 PMAQI
27th Jul 2026257 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026299 PMAQI
27th Jul 20263610 PMAQI
27th Jul 20262611 PMAQI
28th Jul 20263012 AMAQI
28th Jul 2026401 AMAQI
28th Jul 2026302 AMAQI
28th Jul 2026233 AMAQI

20°C13/28°C

28th Jul 2026324 AMAQI
28th Jul 2026345 AMAQI
28th Jul 2026266 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026288 AMAQI
28th Jul 2026269 AMAQI
28th Jul 20262410 AMAQI
28th Jul 20262211 AMAQI
28th Jul 20262212 PMAQI
28th Jul 2026211 PMAQI
28th Jul 2026212 PMAQI
28th Jul 2026273 PMAQI
28th Jul 2026404 PMAQI
28th Jul 2026385 PMAQI
28th Jul 2026366 PMAQI
28th Jul 2026367 PMAQI
28th Jul 2026348 PMAQI
28th Jul 2026329 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20262811 PMAQI
29th Jul 20262712 AMAQI
29th Jul 2026281 AMAQI
29th Jul 2026272 AMAQI
29th Jul 2026283 AMAQI

18°C14/26°C

29th Jul 2026274 AMAQI
29th Jul 2026255 AMAQI
29th Jul 2026246 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026279 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20262411 AMAQI
29th Jul 20262412 PMAQI
29th Jul 2026241 PMAQI
29th Jul 2026232 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026224 PMAQI
29th Jul 2026215 PMAQI
29th Jul 2026236 PMAQI
29th Jul 2026247 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262510 PMAQI
29th Jul 20262611 PMAQI
30th Jul 20262712 AMAQI
30th Jul 2026261 AMAQI
30th Jul 2026292 AMAQI
30th Jul 2026253 AMAQI

20°C13/30°C

30th Jul 2026274 AMAQI
30th Jul 2026255 AMAQI
30th Jul 2026266 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026248 AMAQI
30th Jul 2026239 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262611 AMAQI
30th Jul 20262712 PMAQI
30th Jul 2026301 PMAQI
30th Jul 2026322 PMAQI
30th Jul 2026283 PMAQI
30th Jul 2026254 PMAQI
30th Jul 2026215 PMAQI
30th Jul 2026256 PMAQI
30th Jul 2026237 PMAQI
30th Jul 2026218 PMAQI
30th Jul 2026219 PMAQI
30th Jul 20262210 PMAQI
30th Jul 20262211 PMAQI
31st Jul 20262312 AMAQI
31st Jul 2026231 AMAQI
31st Jul 2026212 AMAQI
31st Jul 2026233 AMAQI

22°C14/32°C

31st Jul 2026244 AMAQI
4 AM
31st Jul 2026225 AMAQI
31st Jul 2026216 AMAQI
31st Jul 2026217 AMAQI
31st Jul 2026238 AMAQI
31st Jul 2026229 AMAQI
31st Jul 20262210 AMAQI
31st Jul 20262211 AMAQI
11 AM
31st Jul 20262212 PMAQI
31st Jul 2026231 PMAQI
31st Jul 2026222 PMAQI
31st Jul 2026243 PMAQI
31st Jul 2026244 PMAQI
31st Jul 2026225 PMAQI
31st Jul 2026256 PMAQI
31st Jul 2026267 PMAQI
7 PM
31st Jul 2026268 PMAQI
31st Jul 2026259 PMAQI
31st Jul 20262610 PMAQI
31st Jul 20262511 PMAQI
11 PM
3 AM

22°C14/33°C

Day time
Avg. Highest Time
7 PM

31AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
2 PM

23AQI

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. 31), while the lowest AQI was between 2 PM to 2 PM (Avg. 23).
Night time
Avg. Highest Time
1 AM

31AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM

29AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 1 AM (Avg. 31), while the lowest AQI was between 3 AM to 3 AM (Avg. 29).

2026 Days Vs Air Quality

Ina, Nagano, Japan

2026

91%

193

9%

19

Total number of days with different AQI categories in last 212 days in 2026 (153 days remaining)

Good
193 Days
Moderate
19 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 91%

Health Risk Level:

Very Low

In 2026, 91% of 212 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Ina, 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
19AQI (US)
2nd January 2026
21AQI (US)
3rd January 2026
18AQI (US)
4th January 2026
23AQI (US)
5th January 2026
35AQI (US)
6th January 2026
17AQI (US)
7th January 2026
28AQI (US)
8th January 2026
28AQI (US)
9th January 2026
21AQI (US)
10th January 2026
35AQI (US)
11th January 2026
30AQI (US)
12th January 2026
19AQI (US)
13th January 2026
22AQI (US)
14th January 2026
16AQI (US)
15th January 2026
34AQI (US)
16th January 2026
34AQI (US)
17th January 2026
44AQI (US)
18th January 2026
39AQI (US)
19th January 2026
50AQI (US)
20th January 2026
32AQI (US)
21st January 2026
18AQI (US)
22nd January 2026
20AQI (US)
23rd January 2026
30AQI (US)
24th January 2026
40AQI (US)
25th January 2026
42AQI (US)
26th January 2026
20AQI (US)
27th January 2026
38AQI (US)
28th January 2026
26AQI (US)
29th January 2026
22AQI (US)
30th January 2026
38AQI (US)
31st January 2026
27AQI (US)
1st February 2026
32AQI (US)
2nd February 2026
44AQI (US)
3rd February 2026
28AQI (US)
4th February 2026
28AQI (US)
5th February 2026
44AQI (US)
6th February 2026
46AQI (US)
7th February 2026
12AQI (US)
8th February 2026
12AQI (US)
9th February 2026
32AQI (US)
10th February 2026
34AQI (US)
11th February 2026
40AQI (US)
12th February 2026
46AQI (US)
13th February 2026
56AQI (US)
14th February 2026
53AQI (US)
15th February 2026
56AQI (US)
16th February 2026
52AQI (US)
17th February 2026
24AQI (US)
18th February 2026
22AQI (US)
19th February 2026
25AQI (US)
20th February 2026
28AQI (US)
21st February 2026
48AQI (US)
22nd February 2026
40AQI (US)
23rd February 2026
42AQI (US)
24th February 2026
47AQI (US)
25th February 2026
18AQI (US)
26th February 2026
12AQI (US)
27th February 2026
24AQI (US)
28th February 2026
14AQI (US)
1st March 2026
21AQI (US)
2nd March 2026
55AQI (US)
3rd March 2026
36AQI (US)
4th March 2026
43AQI (US)
5th March 2026
48AQI (US)
6th March 2026
42AQI (US)
7th March 2026
34AQI (US)
8th March 2026
35AQI (US)
9th March 2026
40AQI (US)
10th March 2026
50AQI (US)
11th March 2026
50AQI (US)
12th March 2026
54AQI (US)
13th March 2026
34AQI (US)
14th March 2026
38AQI (US)
15th March 2026
44AQI (US)
16th March 2026
44AQI (US)
17th March 2026
40AQI (US)
18th March 2026
46AQI (US)
19th March 2026
24AQI (US)
20th March 2026
52AQI (US)
21st March 2026
47AQI (US)
22nd March 2026
44AQI (US)
23rd March 2026
46AQI (US)
24th March 2026
44AQI (US)
25th March 2026
51AQI (US)
26th March 2026
10AQI (US)
27th March 2026
20AQI (US)
28th March 2026
53AQI (US)
29th March 2026
59AQI (US)
30th March 2026
49AQI (US)
31st March 2026
13AQI (US)
1st April 2026
17AQI (US)
2nd April 2026
28AQI (US)
3rd April 2026
43AQI (US)
4th April 2026
36AQI (US)
5th April 2026
18AQI (US)
6th April 2026
33AQI (US)
7th April 2026
30AQI (US)
8th April 2026
24AQI (US)
9th April 2026
24AQI (US)
10th April 2026
34AQI (US)
11th April 2026
27AQI (US)
12th April 2026
28AQI (US)
13th April 2026
30AQI (US)
14th April 2026
40AQI (US)
15th April 2026
28AQI (US)
16th April 2026
26AQI (US)
17th April 2026
32AQI (US)
18th April 2026
32AQI (US)
19th April 2026
31AQI (US)
20th April 2026
30AQI (US)
21st April 2026
30AQI (US)
22nd April 2026
35AQI (US)
23rd April 2026
27AQI (US)
24th April 2026
21AQI (US)
25th April 2026
31AQI (US)
26th April 2026
41AQI (US)
27th April 2026
39AQI (US)
28th April 2026
34AQI (US)
29th April 2026
31AQI (US)
30th April 2026
26AQI (US)
1st May 2026
28AQI (US)
2nd May 2026
40AQI (US)
3rd May 2026
48AQI (US)
4th May 2026
20AQI (US)
5th May 2026
21AQI (US)
6th May 2026
28AQI (US)
7th May 2026
28AQI (US)
8th May 2026
26AQI (US)
9th May 2026
24AQI (US)
10th May 2026
26AQI (US)
11th May 2026
28AQI (US)
12th May 2026
32AQI (US)
13th May 2026
37AQI (US)
14th May 2026
30AQI (US)
15th May 2026
32AQI (US)
16th May 2026
84AQI (US)
17th May 2026
68AQI (US)
18th May 2026
53AQI (US)
19th May 2026
48AQI (US)
20th May 2026
61AQI (US)
21st May 2026
60AQI (US)
22nd May 2026
62AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
59AQI (US)
25th May 2026
49AQI (US)
26th May 2026
40AQI (US)
27th May 2026
24AQI (US)
28th May 2026
25AQI (US)
29th May 2026
22AQI (US)
30th May 2026
21AQI (US)
31st May 2026
24AQI (US)
1st June 2026
27AQI (US)
2nd June 2026
29AQI (US)
3rd June 2026
20AQI (US)
4th June 2026
21AQI (US)
5th June 2026
20AQI (US)
6th June 2026
20AQI (US)
7th June 2026
20AQI (US)
8th June 2026
16AQI (US)
9th June 2026
22AQI (US)
10th June 2026
19AQI (US)
11th June 2026
23AQI (US)
12th June 2026
24AQI (US)
13th June 2026
24AQI (US)
14th June 2026
23AQI (US)
15th June 2026
20AQI (US)
16th June 2026
24AQI (US)
17th June 2026
24AQI (US)
18th June 2026
24AQI (US)
19th June 2026
25AQI (US)
20th June 2026
22AQI (US)
21st June 2026
14AQI (US)
22nd June 2026
17AQI (US)
23rd June 2026
20AQI (US)
24th June 2026
21AQI (US)
25th June 2026
24AQI (US)
26th June 2026
24AQI (US)
27th June 2026
24AQI (US)
28th June 2026
23AQI (US)
29th June 2026
22AQI (US)
30th June 2026
38AQI (US)
1st July 2026
36AQI (US)
2nd July 2026
14AQI (US)
3rd July 2026
13AQI (US)
4th July 2026
23AQI (US)
5th July 2026
19AQI (US)
6th July 2026
12AQI (US)
7th July 2026
16AQI (US)
8th July 2026
23AQI (US)
9th July 2026
25AQI (US)
10th July 2026
33AQI (US)
11th July 2026
30AQI (US)
12th July 2026
28AQI (US)
13th July 2026
26AQI (US)
14th July 2026
26AQI (US)
15th July 2026
37AQI (US)
16th July 2026
52AQI (US)
17th July 2026
43AQI (US)
18th July 2026
44AQI (US)
19th July 2026
24AQI (US)
20th July 2026
27AQI (US)
21st July 2026
36AQI (US)
22nd July 2026
42AQI (US)
23rd July 2026
40AQI (US)
24th July 2026
31AQI (US)
25th July 2026
27AQI (US)
26th July 2026
26AQI (US)
27th July 2026
30AQI (US)
28th July 2026
29AQI (US)
29th July 2026
25AQI (US)
30th July 2026
25AQI (US)
31st July 2026
23AQI (US)
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)

34AQI (US)

41AQI (US)

30AQI (US)

39AQI (US)

22AQI (US)

29AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202632AQI (US)

31
24
4
25
6
30
23
8
30
30
1
193
19

Highest AQI (US) recorded in

March

41AQI (US)

Lowest AQI (US) recorded in

June

22AQI (US)

202539AQI (US)

30
1
28
26
5
26
4
28
3
27
3
25
6
23
8
30
28
3
25
5
28
3
324
41

Highest AQI (US) recorded in

August

46AQI (US)

Lowest AQI (US) recorded in

January

32AQI (US)

202433AQI (US)

31
29
29
2
22
8
31
24
6
31
29
2
27
3
31
30
31
345
21

Highest AQI (US) recorded in

April

44AQI (US)

Lowest AQI (US) recorded in

October

25AQI (US)

202335AQI (US)

31
28
29
2
24
6
29
2
29
1
25
6
30
1
30
31
27
2
30
1
343
21

Highest AQI (US) recorded in

April

45AQI (US)

Lowest AQI (US) recorded in

October

28AQI (US)

202235AQI (US)

30
20
1
27
4
24
6
24
7
26
4
22
2
1
26
2
31
29
1
31
291
27

Highest AQI (US) recorded in

May

43AQI (US)

Lowest AQI (US) recorded in

August

22AQI (US)

202131AQI (US)

30
1
26
2
29
20
1
30
1
25
5
29
2
31
30
31
30
31
342
12

Highest AQI (US) recorded in

June

41AQI (US)

Lowest AQI (US) recorded in

January

24AQI (US)

202029AQI (US)

12
1
19
2
18
25
5
31
19
11
1
19
31
30
31
235
19
1

Highest AQI (US) recorded in

August

48AQI (US)

Lowest AQI (US) recorded in

July

20AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
39AQI (US)
Least Polluted Year Recorded
2020(Avg.)
29AQI (US)

Ina's annual 2026 AQI (US) (32) shows an average percentage change of -4.09% (improved AQI (US)) compared to previous years: 2020 (29), 2021 (31), 2022 (35), 2023 (35), 2024 (33), 2025 (39).