Niihama, Ehime, 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
Niihama, Ehime, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2024
64AQILowest AQI recorded on
29th Aug 2024
16AQISame Day Analysis (3rd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 46 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 1st Aug - 2nd Aug 2026
Niihama, Ehime, Japan
AQI
Day
Night
.
5 AM1st Aug 2026
7 PM
4 AM2nd Aug 2026
Day time
Avg. Highest Time
2PM1st Aug
52AQI
Avg. Lowest Time
6PM1st Aug
38AQI
Night time
Avg. Highest Time
1AM2nd Aug
51AQI
Avg. Lowest Time
10PM1st Aug
46AQI
In the last 24 hours,
Niihama's AQI reached its highest point of 52 at 2 PM during the Day, while the lowest point, 38, was recorded at 6 PM during the Day between 1st Aug and 2nd Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Niihama, Ehime, Japan
JulAug
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
4th Jul 2026265 AMAQI
4th Jul 2026266 AMAQI
4th Jul 2026267 AMAQI
4th Jul 2026278 AMAQI
4th Jul 2026269 AMAQI
4th Jul 20262410 AMAQI
4th Jul 20262411 AMAQI
4th Jul 20262412 PMAQI
4th Jul 2026241 PMAQI
4th Jul 2026232 PMAQI
4th Jul 2026283 PMAQI
4th Jul 2026264 PMAQI
4th Jul 2026265 PMAQI
4th Jul 2026246 PMAQI
4th Jul 2026267 PMAQI
4th Jul 2026258 PMAQI
4th Jul 2026249 PMAQI
4th Jul 20262610 PMAQI
4th Jul 20262411 PMAQI
5th Jul 20262412 AMAQI
5th Jul 2026261 AMAQI
5th Jul 2026222 AMAQI
5th Jul 2026243 AMAQI
5th Jul 2026234 AMAQI
22°C22/23°C
5th Jul 2026245 AMAQI
5th Jul 2026246 AMAQI
5th Jul 2026247 AMAQI
5th Jul 2026258 AMAQI
5th Jul 2026219 AMAQI
5th Jul 20262010 AMAQI
5th Jul 20262211 AMAQI
5th Jul 20261812 PMAQI
5th Jul 2026181 PMAQI
5th Jul 2026212 PMAQI
5th Jul 2026243 PMAQI
5th Jul 2026244 PMAQI
5th Jul 2026225 PMAQI
5th Jul 2026186 PMAQI
5th Jul 2026217 PMAQI
5th Jul 2026208 PMAQI
5th Jul 2026229 PMAQI
5th Jul 20262210 PMAQI
5th Jul 20262211 PMAQI
6th Jul 20261912 AMAQI
6th Jul 2026261 AMAQI
6th Jul 2026242 AMAQI
6th Jul 2026253 AMAQI
6th Jul 2026224 AMAQI
23°C22/25°C
6th Jul 2026145 AMAQI
6th Jul 2026186 AMAQI
6th Jul 2026227 AMAQI
6th Jul 2026228 AMAQI
6th Jul 2026209 AMAQI
6th Jul 20262810 AMAQI
6th Jul 20263311 AMAQI
6th Jul 20261812 PMAQI
6th Jul 2026181 PMAQI
6th Jul 2026222 PMAQI
6th Jul 2026233 PMAQI
6th Jul 2026244 PMAQI
6th Jul 2026205 PMAQI
6th Jul 2026186 PMAQI
6th Jul 2026227 PMAQI
6th Jul 2026268 PMAQI
6th Jul 2026289 PMAQI
6th Jul 20262510 PMAQI
6th Jul 20262611 PMAQI
7th Jul 20262612 AMAQI
7th Jul 2026301 AMAQI
7th Jul 2026282 AMAQI
7th Jul 2026303 AMAQI
7th Jul 2026274 AMAQI
23°C22/25°C
7th Jul 2026285 AMAQI
7th Jul 2026296 AMAQI
7th Jul 2026287 AMAQI
7th Jul 2026288 AMAQI
7th Jul 2026269 AMAQI
7th Jul 20262510 AMAQI
7th Jul 20262511 AMAQI
7th Jul 20262412 PMAQI
7th Jul 2026241 PMAQI
7th Jul 2026242 PMAQI
7th Jul 2026283 PMAQI
7th Jul 2026274 PMAQI
7th Jul 2026255 PMAQI
7th Jul 2026286 PMAQI
7th Jul 2026287 PMAQI
7th Jul 2026268 PMAQI
7th Jul 2026289 PMAQI
7th Jul 20263210 PMAQI
7th Jul 20266411 PMAQI
8th Jul 20266512 AMAQI
8th Jul 2026661 AMAQI
8th Jul 2026682 AMAQI
8th Jul 2026673 AMAQI
8th Jul 2026644 AMAQI
24°C23/26°C
8th Jul 2026665 AMAQI
8th Jul 2026646 AMAQI
8th Jul 2026587 AMAQI
8th Jul 2026608 AMAQI
8th Jul 2026489 AMAQI
8th Jul 20262910 AMAQI
8th Jul 20263611 AMAQI
8th Jul 20265012 PMAQI
8th Jul 2026471 PMAQI
8th Jul 2026502 PMAQI
8th Jul 2026553 PMAQI
8th Jul 2026554 PMAQI
8th Jul 2026535 PMAQI
8th Jul 2026566 PMAQI
8th Jul 2026547 PMAQI
8th Jul 2026548 PMAQI
8th Jul 2026569 PMAQI
8th Jul 20265910 PMAQI
8th Jul 20266611 PMAQI
9th Jul 20266412 AMAQI
9th Jul 2026621 AMAQI
9th Jul 2026592 AMAQI
9th Jul 2026523 AMAQI
9th Jul 2026474 AMAQI
25°C23/26°C
9th Jul 2026265 AMAQI
9th Jul 2026186 AMAQI
9th Jul 2026137 AMAQI
9th Jul 2026168 AMAQI
9th Jul 2026169 AMAQI
9th Jul 20261610 AMAQI
9th Jul 20261611 AMAQI
9th Jul 20261812 PMAQI
9th Jul 2026201 PMAQI
9th Jul 2026252 PMAQI
9th Jul 2026273 PMAQI
9th Jul 2026344 PMAQI
9th Jul 2026375 PMAQI
9th Jul 2026426 PMAQI
9th Jul 2026327 PMAQI
9th Jul 2026338 PMAQI
9th Jul 2026479 PMAQI
9th Jul 20264410 PMAQI
9th Jul 20263711 PMAQI
10th Jul 20262912 AMAQI
10th Jul 2026411 AMAQI
10th Jul 2026362 AMAQI
10th Jul 2026293 AMAQI
10th Jul 2026314 AMAQI
25°C23/27°C
10th Jul 2026305 AMAQI
10th Jul 2026266 AMAQI
10th Jul 2026287 AMAQI
10th Jul 2026298 AMAQI
10th Jul 2026279 AMAQI
10th Jul 20263110 AMAQI
10th Jul 20263611 AMAQI
10th Jul 20264512 PMAQI
10th Jul 2026291 PMAQI
10th Jul 2026272 PMAQI
10th Jul 2026373 PMAQI
10th Jul 2026414 PMAQI
10th Jul 2026305 PMAQI
10th Jul 2026286 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026308 PMAQI
10th Jul 2026309 PMAQI
10th Jul 20263210 PMAQI
10th Jul 20263211 PMAQI
11th Jul 20263212 AMAQI
11th Jul 2026311 AMAQI
11th Jul 2026302 AMAQI
11th Jul 2026303 AMAQI
11th Jul 2026294 AMAQI
24°C22/27°C
11th Jul 2026315 AMAQI
11th Jul 2026306 AMAQI
11th Jul 2026307 AMAQI
11th Jul 2026328 AMAQI
11th Jul 2026329 AMAQI
11th Jul 20263310 AMAQI
11th Jul 20262811 AMAQI
11th Jul 20262712 PMAQI
11th Jul 2026241 PMAQI
11th Jul 2026262 PMAQI
11th Jul 2026253 PMAQI
11th Jul 2026244 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026296 PMAQI
11th Jul 2026277 PMAQI
11th Jul 2026268 PMAQI
11th Jul 2026289 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026291 AMAQI
12th Jul 2026322 AMAQI
12th Jul 2026323 AMAQI
12th Jul 2026274 AMAQI
25°C23/27°C
12th Jul 2026305 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026297 AMAQI
12th Jul 2026288 AMAQI
12th Jul 2026309 AMAQI
12th Jul 20262910 AMAQI
12th Jul 20262711 AMAQI
12th Jul 20262412 PMAQI
12th Jul 2026231 PMAQI
12th Jul 2026242 PMAQI
12th Jul 2026223 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026296 PMAQI
12th Jul 2026297 PMAQI
12th Jul 2026298 PMAQI
12th Jul 2026289 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20263012 AMAQI
13th Jul 2026301 AMAQI
13th Jul 2026282 AMAQI
13th Jul 2026303 AMAQI
13th Jul 2026274 AMAQI
25°C23/28°C
13th Jul 2026285 AMAQI
13th Jul 2026266 AMAQI
13th Jul 2026277 AMAQI
13th Jul 2026288 AMAQI
13th Jul 2026289 AMAQI
13th Jul 20262810 AMAQI
13th Jul 20262611 AMAQI
13th Jul 20262712 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026262 PMAQI
13th Jul 2026233 PMAQI
13th Jul 2026264 PMAQI
13th Jul 2026305 PMAQI
13th Jul 2026326 PMAQI
13th Jul 2026327 PMAQI
13th Jul 2026328 PMAQI
13th Jul 2026319 PMAQI
13th Jul 20263210 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263312 AMAQI
14th Jul 2026321 AMAQI
14th Jul 2026322 AMAQI
14th Jul 2026303 AMAQI
14th Jul 2026274 AMAQI
26°C24/29°C
14th Jul 2026325 AMAQI
14th Jul 2026306 AMAQI
14th Jul 2026307 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026319 AMAQI
14th Jul 20263410 AMAQI
14th Jul 20262811 AMAQI
14th Jul 20262412 PMAQI
14th Jul 2026221 PMAQI
14th Jul 2026212 PMAQI
14th Jul 2026223 PMAQI
14th Jul 2026234 PMAQI
14th Jul 2026295 PMAQI
14th Jul 2026316 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026308 PMAQI
14th Jul 2026309 PMAQI
14th Jul 20262810 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263412 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026312 AMAQI
15th Jul 2026293 AMAQI
15th Jul 2026284 AMAQI
26°C24/29°C
15th Jul 2026285 AMAQI
15th Jul 2026246 AMAQI
15th Jul 2026307 AMAQI
15th Jul 2026308 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20262810 AMAQI
15th Jul 20262211 AMAQI
15th Jul 20262012 PMAQI
15th Jul 2026201 PMAQI
15th Jul 2026202 PMAQI
15th Jul 2026233 PMAQI
15th Jul 2026314 PMAQI
15th Jul 2026275 PMAQI
15th Jul 2026216 PMAQI
15th Jul 2026247 PMAQI
15th Jul 2026298 PMAQI
15th Jul 2026279 PMAQI
15th Jul 20262810 PMAQI
15th Jul 20262211 PMAQI
16th Jul 20262812 AMAQI
16th Jul 2026221 AMAQI
16th Jul 2026402 AMAQI
16th Jul 2026263 AMAQI
16th Jul 2026324 AMAQI
27°C23/30°C
16th Jul 2026325 AMAQI
16th Jul 2026316 AMAQI
16th Jul 2026227 AMAQI
16th Jul 2026238 AMAQI
16th Jul 2026259 AMAQI
16th Jul 20263110 AMAQI
16th Jul 20263611 AMAQI
16th Jul 20264112 PMAQI
16th Jul 2026391 PMAQI
16th Jul 2026442 PMAQI
16th Jul 2026333 PMAQI
16th Jul 2026294 PMAQI
16th Jul 2026215 PMAQI
16th Jul 2026206 PMAQI
16th Jul 2026247 PMAQI
16th Jul 2026378 PMAQI
16th Jul 2026309 PMAQI
16th Jul 20264010 PMAQI
16th Jul 20262911 PMAQI
17th Jul 20263012 AMAQI
17th Jul 2026301 AMAQI
17th Jul 2026322 AMAQI
17th Jul 2026303 AMAQI
17th Jul 2026304 AMAQI
26°C24/28°C
17th Jul 2026285 AMAQI
17th Jul 2026286 AMAQI
17th Jul 2026287 AMAQI
17th Jul 2026248 AMAQI
17th Jul 2026289 AMAQI
17th Jul 20263210 AMAQI
17th Jul 20262711 AMAQI
17th Jul 20262812 PMAQI
17th Jul 2026271 PMAQI
17th Jul 2026272 PMAQI
17th Jul 2026263 PMAQI
17th Jul 2026524 PMAQI
17th Jul 2026515 PMAQI
17th Jul 2026526 PMAQI
17th Jul 2026527 PMAQI
17th Jul 2026528 PMAQI
17th Jul 2026529 PMAQI
17th Jul 20265210 PMAQI
17th Jul 20265411 PMAQI
18th Jul 20265512 AMAQI
18th Jul 2026541 AMAQI
18th Jul 2026562 AMAQI
18th Jul 2026553 AMAQI
18th Jul 2026554 AMAQI
26°C24/28°C
18th Jul 2026565 AMAQI
18th Jul 2026566 AMAQI
18th Jul 2026567 AMAQI
18th Jul 2026568 AMAQI
18th Jul 2026569 AMAQI
18th Jul 20265810 AMAQI
18th Jul 20265611 AMAQI
18th Jul 20265612 PMAQI
18th Jul 2026561 PMAQI
18th Jul 2026562 PMAQI
18th Jul 2026583 PMAQI
18th Jul 2026584 PMAQI
18th Jul 2026615 PMAQI
18th Jul 2026666 PMAQI
18th Jul 2026707 PMAQI
18th Jul 2026708 PMAQI
18th Jul 2026689 PMAQI
18th Jul 20266610 PMAQI
18th Jul 20266611 PMAQI
19th Jul 20266812 AMAQI
19th Jul 2026641 AMAQI
19th Jul 2026562 AMAQI
19th Jul 2026583 AMAQI
19th Jul 2026594 AMAQI
27°C24/29°C
19th Jul 2026585 AMAQI
19th Jul 2026606 AMAQI
19th Jul 2026567 AMAQI
19th Jul 2026568 AMAQI
19th Jul 2026589 AMAQI
19th Jul 20265810 AMAQI
19th Jul 20265711 AMAQI
19th Jul 20265612 PMAQI
19th Jul 2026581 PMAQI
19th Jul 2026632 PMAQI
19th Jul 2026683 PMAQI
19th Jul 2026664 PMAQI
19th Jul 2026665 PMAQI
19th Jul 2026686 PMAQI
19th Jul 2026657 PMAQI
19th Jul 2026668 PMAQI
19th Jul 2026669 PMAQI
19th Jul 20266410 PMAQI
19th Jul 20266411 PMAQI
20th Jul 20266612 AMAQI
20th Jul 2026661 AMAQI
20th Jul 2026642 AMAQI
20th Jul 2026633 AMAQI
20th Jul 2026664 AMAQI
27°C24/29°C
20th Jul 2026555 AMAQI
20th Jul 2026546 AMAQI
20th Jul 2026567 AMAQI
20th Jul 2026558 AMAQI
20th Jul 2026559 AMAQI
20th Jul 20265610 AMAQI
20th Jul 20265811 AMAQI
20th Jul 20266012 PMAQI
20th Jul 2026621 PMAQI
20th Jul 2026642 PMAQI
20th Jul 2026653 PMAQI
20th Jul 2026654 PMAQI
20th Jul 2026645 PMAQI
20th Jul 2026626 PMAQI
20th Jul 2026637 PMAQI
20th Jul 2026628 PMAQI
20th Jul 2026649 PMAQI
20th Jul 20266210 PMAQI
20th Jul 20266411 PMAQI
21st Jul 20266012 AMAQI
21st Jul 2026611 AMAQI
21st Jul 2026662 AMAQI
21st Jul 2026663 AMAQI
21st Jul 2026604 AMAQI
27°C24/29°C
21st Jul 2026625 AMAQI
21st Jul 2026606 AMAQI
21st Jul 2026607 AMAQI
21st Jul 2026598 AMAQI
21st Jul 2026569 AMAQI
21st Jul 20265610 AMAQI
21st Jul 20266211 AMAQI
21st Jul 2026581 PMAQI
21st Jul 2026582 PMAQI
21st Jul 2026703 PMAQI
21st Jul 2026704 PMAQI
21st Jul 2026605 PMAQI
21st Jul 2026676 PMAQI
21st Jul 20261047 PMAQI
21st Jul 2026778 PMAQI
21st Jul 2026749 PMAQI
21st Jul 20267010 PMAQI
21st Jul 20266411 PMAQI
22nd Jul 20266812 AMAQI
22nd Jul 2026701 AMAQI
22nd Jul 2026662 AMAQI
22nd Jul 2026683 AMAQI
22nd Jul 2026664 AMAQI
27°C25/30°C
22nd Jul 2026625 AMAQI
22nd Jul 2026606 AMAQI
22nd Jul 2026587 AMAQI
22nd Jul 2026588 AMAQI
22nd Jul 2026589 AMAQI
22nd Jul 20265810 AMAQI
22nd Jul 20266011 AMAQI
22nd Jul 20265412 PMAQI
22nd Jul 2026631 PMAQI
22nd Jul 2026642 PMAQI
22nd Jul 2026723 PMAQI
22nd Jul 2026744 PMAQI
22nd Jul 2026765 PMAQI
22nd Jul 2026816 PMAQI
22nd Jul 2026817 PMAQI
22nd Jul 2026788 PMAQI
22nd Jul 2026849 PMAQI
22nd Jul 20268410 PMAQI
22nd Jul 20268011 PMAQI
23rd Jul 20267712 AMAQI
23rd Jul 2026631 AMAQI
23rd Jul 2026612 AMAQI
23rd Jul 2026603 AMAQI
23rd Jul 2026574 AMAQI
27°C25/29°C
23rd Jul 2026645 AMAQI
23rd Jul 2026606 AMAQI
23rd Jul 2026627 AMAQI
23rd Jul 2026588 AMAQI
23rd Jul 2026569 AMAQI
23rd Jul 20265410 AMAQI
23rd Jul 20265311 AMAQI
23rd Jul 20265612 PMAQI
23rd Jul 2026551 PMAQI
23rd Jul 2026562 PMAQI
23rd Jul 2026523 PMAQI
23rd Jul 2026504 PMAQI
23rd Jul 2026565 PMAQI
23rd Jul 2026626 PMAQI
23rd Jul 2026617 PMAQI
23rd Jul 2026668 PMAQI
23rd Jul 2026699 PMAQI
23rd Jul 20267110 PMAQI
23rd Jul 20267411 PMAQI
24th Jul 20267012 AMAQI
24th Jul 2026621 AMAQI
24th Jul 2026632 AMAQI
24th Jul 2026663 AMAQI
24th Jul 2026664 AMAQI
27°C24/30°C
24th Jul 2026725 AMAQI
24th Jul 2026646 AMAQI
24th Jul 2026667 AMAQI
24th Jul 2026638 AMAQI
24th Jul 2026649 AMAQI
24th Jul 20266110 AMAQI
24th Jul 20265711 AMAQI
24th Jul 20265312 PMAQI
24th Jul 2026541 PMAQI
24th Jul 2026582 PMAQI
24th Jul 2026563 PMAQI
24th Jul 2026564 PMAQI
24th Jul 2026555 PMAQI
24th Jul 2026566 PMAQI
24th Jul 2026647 PMAQI
24th Jul 2026588 PMAQI
24th Jul 2026559 PMAQI
24th Jul 20265610 PMAQI
24th Jul 20265711 PMAQI
25th Jul 20265412 AMAQI
25th Jul 2026551 AMAQI
25th Jul 2026582 AMAQI
25th Jul 2026563 AMAQI
25th Jul 2026584 AMAQI
27°C24/29°C
25th Jul 2026555 AMAQI
25th Jul 2026546 AMAQI
25th Jul 2026547 AMAQI
25th Jul 2026568 AMAQI
25th Jul 2026529 AMAQI
25th Jul 20265210 AMAQI
25th Jul 20264911 AMAQI
25th Jul 20264812 PMAQI
25th Jul 2026481 PMAQI
25th Jul 2026522 PMAQI
25th Jul 2026523 PMAQI
25th Jul 2026564 PMAQI
25th Jul 2026565 PMAQI
25th Jul 2026546 PMAQI
25th Jul 2026547 PMAQI
25th Jul 2026508 PMAQI
25th Jul 2026649 PMAQI
25th Jul 20266610 PMAQI
25th Jul 20266611 PMAQI
26th Jul 20266312 AMAQI
26th Jul 2026561 AMAQI
26th Jul 2026642 AMAQI
26th Jul 2026583 AMAQI
26th Jul 2026614 AMAQI
27°C24/31°C
26th Jul 2026595 AMAQI
26th Jul 2026616 AMAQI
26th Jul 2026637 AMAQI
26th Jul 2026608 AMAQI
26th Jul 2026539 AMAQI
26th Jul 20266110 AMAQI
26th Jul 20265411 AMAQI
26th Jul 20265512 PMAQI
26th Jul 2026551 PMAQI
26th Jul 2026502 PMAQI
26th Jul 2026543 PMAQI
26th Jul 2026584 PMAQI
26th Jul 2026525 PMAQI
26th Jul 2026486 PMAQI
26th Jul 2026577 PMAQI
26th Jul 2026588 PMAQI
26th Jul 2026529 PMAQI
26th Jul 20265110 PMAQI
26th Jul 20265211 PMAQI
27th Jul 20265112 AMAQI
27th Jul 2026501 AMAQI
27th Jul 2026582 AMAQI
27th Jul 2026543 AMAQI
27th Jul 2026584 AMAQI
27°C25/30°C
27th Jul 2026545 AMAQI
27th Jul 2026606 AMAQI
27th Jul 2026517 AMAQI
27th Jul 2026508 AMAQI
27th Jul 2026549 AMAQI
27th Jul 20264910 AMAQI
27th Jul 20265011 AMAQI
27th Jul 20264612 PMAQI
27th Jul 2026541 PMAQI
27th Jul 2026582 PMAQI
27th Jul 2026393 PMAQI
27th Jul 2026404 PMAQI
27th Jul 2026415 PMAQI
27th Jul 2026436 PMAQI
27th Jul 2026437 PMAQI
27th Jul 2026428 PMAQI
27th Jul 2026309 PMAQI
27th Jul 20263310 PMAQI
27th Jul 20264911 PMAQI
28th Jul 20264112 AMAQI
28th Jul 2026411 AMAQI
28th Jul 2026422 AMAQI
28th Jul 2026413 AMAQI
28th Jul 2026444 AMAQI
27°C25/30°C
28th Jul 2026455 AMAQI
28th Jul 2026426 AMAQI
28th Jul 2026387 AMAQI
28th Jul 2026448 AMAQI
28th Jul 2026489 AMAQI
28th Jul 20263610 AMAQI
28th Jul 20263911 AMAQI
28th Jul 20264112 PMAQI
28th Jul 2026391 PMAQI
28th Jul 2026412 PMAQI
28th Jul 2026383 PMAQI
28th Jul 2026454 PMAQI
28th Jul 2026385 PMAQI
28th Jul 2026476 PMAQI
28th Jul 2026507 PMAQI
28th Jul 2026468 PMAQI
28th Jul 2026539 PMAQI
28th Jul 20263610 PMAQI
28th Jul 20264011 PMAQI
29th Jul 20262512 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026322 AMAQI
29th Jul 2026273 AMAQI
29th Jul 2026254 AMAQI
28°C25/31°C
29th Jul 2026225 AMAQI
29th Jul 2026236 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026278 AMAQI
29th Jul 2026219 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20263611 AMAQI
29th Jul 20264212 PMAQI
29th Jul 2026411 PMAQI
29th Jul 2026362 PMAQI
29th Jul 2026413 PMAQI
29th Jul 2026344 PMAQI
29th Jul 2026415 PMAQI
29th Jul 2026366 PMAQI
29th Jul 2026367 PMAQI
29th Jul 2026438 PMAQI
29th Jul 2026299 PMAQI
29th Jul 20262910 PMAQI
29th Jul 20263111 PMAQI
30th Jul 20263012 AMAQI
30th Jul 2026291 AMAQI
30th Jul 2026322 AMAQI
30th Jul 2026253 AMAQI
30th Jul 2026334 AMAQI
26°C24/29°C
30th Jul 2026365 AMAQI
30th Jul 2026256 AMAQI
30th Jul 2026277 AMAQI
30th Jul 2026298 AMAQI
30th Jul 2026229 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262312 PMAQI
30th Jul 2026231 PMAQI
30th Jul 2026252 PMAQI
30th Jul 2026313 PMAQI
30th Jul 2026314 PMAQI
30th Jul 2026345 PMAQI
30th Jul 2026386 PMAQI
30th Jul 2026367 PMAQI
30th Jul 2026298 PMAQI
30th Jul 2026309 PMAQI
30th Jul 20263310 PMAQI
30th Jul 20263211 PMAQI
31st Jul 20263112 AMAQI
31st Jul 2026321 AMAQI
31st Jul 2026332 AMAQI
31st Jul 2026323 AMAQI
31st Jul 2026314 AMAQI
28°C25/31°C
31st Jul 2026315 AMAQI
31st Jul 2026326 AMAQI
31st Jul 2026337 AMAQI
31st Jul 2026308 AMAQI
31st Jul 2026329 AMAQI
31st Jul 20263010 AMAQI
31st Jul 20263111 AMAQI
31st Jul 20263312 PMAQI
31st Jul 2026291 PMAQI
31st Jul 2026302 PMAQI
31st Jul 2026293 PMAQI
31st Jul 2026294 PMAQI
31st Jul 2026285 PMAQI
31st Jul 2026316 PMAQI
31st Jul 2026297 PMAQI
31st Jul 2026328 PMAQI
31st Jul 2026329 PMAQI
31st Jul 20263310 PMAQI
31st Jul 20267811 PMAQI
1st Aug 20265212 AMAQI
1st Aug 2026471 AMAQI
1st Aug 2026452 AMAQI
1st Aug 2026523 AMAQI
1st Aug 2026524 AMAQI
27°C24/31°C
1st Aug 2026485 AMAQI
1st Aug 2026456 AMAQI
1st Aug 2026437 AMAQI
1st Aug 2026408 AMAQI
1st Aug 2026419 AMAQI
1st Aug 20264310 AMAQI
1st Aug 20264511 AMAQI
1st Aug 20265012 PMAQI
1st Aug 2026421 PMAQI
1st Aug 2026522 PMAQI
1st Aug 2026493 PMAQI
1st Aug 2026414 PMAQI
1st Aug 2026395 PMAQI
1st Aug 2026386 PMAQI
1st Aug 2026427 PMAQI
1st Aug 2026498 PMAQI
1st Aug 2026489 PMAQI
1st Aug 20264610 PMAQI
1st Aug 20265011 PMAQI
2nd Aug 20264812 AMAQI
2nd Aug 2026511 AMAQI
2nd Aug 2026482 AMAQI
2nd Aug 2026503 AMAQI
2nd Aug 2026504 AMAQI
27°C24/31°C
2nd Aug 2026505 AMAQI
5 AM2nd Aug 2026516 AMAQI
2nd Aug 2026507 AMAQI
2nd Aug 2026508 AMAQI
2nd Aug 2026539 AMAQI
2nd Aug 20265510 AMAQI
2nd Aug 20265011 AMAQI
2nd Aug 20264812 PMAQI
12 PM2nd Aug 2026391 PMAQI
2nd Aug 2026382 PMAQI
2nd Aug 2026363 PMAQI
2nd Aug 2026264 PMAQI
2nd Aug 2026325 PMAQI
2nd Aug 2026316 PMAQI
2nd Aug 2026327 PMAQI
7 PM2nd Aug 2026368 PMAQI
2nd Aug 2026419 PMAQI
2nd Aug 20263510 PMAQI
2nd Aug 20263811 PMAQI
12 AM
4 AM
28°C25/31°C
Day time
Avg. Highest Time
7 PM
44AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM - 6 PM
40AQI
13 hours / Day
390 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 44), while the lowest AQI was between 6 AM to 6 PM (Avg. 40).
Night time
Avg. Highest Time
11 PM
47AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 10 PM
44AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 47), while the lowest AQI was between 12 AM to 10 PM (Avg. 44).
2026 Days Vs Air Quality
Niihama, Ehime, Japan
2026
71%
153
29%
62
Total number of days with different AQI categories in last 215 days in 2026 (150 days remaining)
Good
153 DaysModerate
62 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 71%
Health Risk Level:
Low
In 2026, 71% of 215 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Niihama, Ehime, 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
32AQI (US)
32AQI (US)
2nd January 2026
25AQI (US)
25AQI (US)
3rd January 2026
30AQI (US)
30AQI (US)
4th January 2026
45AQI (US)
45AQI (US)
5th January 2026
52AQI (US)
52AQI (US)
6th January 2026
32AQI (US)
32AQI (US)
7th January 2026
38AQI (US)
38AQI (US)
8th January 2026
42AQI (US)
42AQI (US)
9th January 2026
20AQI (US)
20AQI (US)
10th January 2026
30AQI (US)
30AQI (US)
11th January 2026
32AQI (US)
32AQI (US)
12th January 2026
24AQI (US)
24AQI (US)
13th January 2026
33AQI (US)
33AQI (US)
14th January 2026
28AQI (US)
28AQI (US)
15th January 2026
58AQI (US)
58AQI (US)
16th January 2026
62AQI (US)
62AQI (US)
17th January 2026
60AQI (US)
60AQI (US)
18th January 2026
64AQI (US)
64AQI (US)
19th January 2026
76AQI (US)
76AQI (US)
20th January 2026
30AQI (US)
30AQI (US)
21st January 2026
21AQI (US)
21AQI (US)
22nd January 2026
29AQI (US)
29AQI (US)
23rd January 2026
35AQI (US)
35AQI (US)
24th January 2026
44AQI (US)
44AQI (US)
25th January 2026
42AQI (US)
42AQI (US)
26th January 2026
24AQI (US)
24AQI (US)
27th January 2026
40AQI (US)
40AQI (US)
28th January 2026
32AQI (US)
32AQI (US)
29th January 2026
33AQI (US)
33AQI (US)
30th January 2026
28AQI (US)
28AQI (US)
31st January 2026
20AQI (US)
20AQI (US)
1st February 2026
41AQI (US)
41AQI (US)
2nd February 2026
46AQI (US)
46AQI (US)
3rd February 2026
33AQI (US)
33AQI (US)
4th February 2026
34AQI (US)
34AQI (US)
5th February 2026
37AQI (US)
37AQI (US)
6th February 2026
48AQI (US)
48AQI (US)
7th February 2026
30AQI (US)
30AQI (US)
8th February 2026
28AQI (US)
28AQI (US)
9th February 2026
37AQI (US)
37AQI (US)
10th February 2026
46AQI (US)
46AQI (US)
11th February 2026
51AQI (US)
51AQI (US)
12th February 2026
39AQI (US)
39AQI (US)
13th February 2026
39AQI (US)
39AQI (US)
14th February 2026
67AQI (US)
67AQI (US)
15th February 2026
77AQI (US)
77AQI (US)
16th February 2026
50AQI (US)
50AQI (US)
17th February 2026
26AQI (US)
26AQI (US)
18th February 2026
23AQI (US)
23AQI (US)
19th February 2026
50AQI (US)
50AQI (US)
20th February 2026
51AQI (US)
51AQI (US)
21st February 2026
62AQI (US)
62AQI (US)
22nd February 2026
75AQI (US)
75AQI (US)
23rd February 2026
76AQI (US)
76AQI (US)
24th February 2026
62AQI (US)
62AQI (US)
25th February 2026
40AQI (US)
40AQI (US)
26th February 2026
19AQI (US)
19AQI (US)
27th February 2026
58AQI (US)
58AQI (US)
28th February 2026
20AQI (US)
20AQI (US)
1st March 2026
36AQI (US)
36AQI (US)
2nd March 2026
72AQI (US)
72AQI (US)
3rd March 2026
43AQI (US)
43AQI (US)
4th March 2026
42AQI (US)
42AQI (US)
5th March 2026
52AQI (US)
52AQI (US)
6th March 2026
50AQI (US)
50AQI (US)
7th March 2026
42AQI (US)
42AQI (US)
8th March 2026
30AQI (US)
30AQI (US)
9th March 2026
47AQI (US)
47AQI (US)
10th March 2026
57AQI (US)
57AQI (US)
11th March 2026
54AQI (US)
54AQI (US)
12th March 2026
62AQI (US)
62AQI (US)
13th March 2026
40AQI (US)
40AQI (US)
14th March 2026
44AQI (US)
44AQI (US)
15th March 2026
60AQI (US)
60AQI (US)
16th March 2026
56AQI (US)
56AQI (US)
17th March 2026
49AQI (US)
49AQI (US)
18th March 2026
66AQI (US)
66AQI (US)
19th March 2026
48AQI (US)
48AQI (US)
20th March 2026
60AQI (US)
60AQI (US)
21st March 2026
46AQI (US)
46AQI (US)
22nd March 2026
60AQI (US)
60AQI (US)
23rd March 2026
60AQI (US)
60AQI (US)
24th March 2026
56AQI (US)
56AQI (US)
25th March 2026
57AQI (US)
57AQI (US)
26th March 2026
12AQI (US)
12AQI (US)
27th March 2026
38AQI (US)
38AQI (US)
28th March 2026
68AQI (US)
68AQI (US)
29th March 2026
87AQI (US)
87AQI (US)
30th March 2026
90AQI (US)
90AQI (US)
31st March 2026
27AQI (US)
27AQI (US)
1st April 2026
15AQI (US)
15AQI (US)
2nd April 2026
51AQI (US)
51AQI (US)
3rd April 2026
56AQI (US)
56AQI (US)
4th April 2026
38AQI (US)
38AQI (US)
5th April 2026
22AQI (US)
22AQI (US)
6th April 2026
52AQI (US)
52AQI (US)
7th April 2026
40AQI (US)
40AQI (US)
8th April 2026
38AQI (US)
38AQI (US)
9th April 2026
53AQI (US)
53AQI (US)
10th April 2026
40AQI (US)
40AQI (US)
11th April 2026
40AQI (US)
40AQI (US)
12th April 2026
36AQI (US)
36AQI (US)
13th April 2026
48AQI (US)
48AQI (US)
14th April 2026
70AQI (US)
70AQI (US)
15th April 2026
62AQI (US)
62AQI (US)
16th April 2026
28AQI (US)
28AQI (US)
17th April 2026
42AQI (US)
42AQI (US)
18th April 2026
56AQI (US)
56AQI (US)
19th April 2026
58AQI (US)
58AQI (US)
20th April 2026
48AQI (US)
48AQI (US)
21st April 2026
37AQI (US)
37AQI (US)
22nd April 2026
40AQI (US)
40AQI (US)
23rd April 2026
31AQI (US)
31AQI (US)
24th April 2026
18AQI (US)
18AQI (US)
25th April 2026
46AQI (US)
46AQI (US)
26th April 2026
38AQI (US)
38AQI (US)
27th April 2026
31AQI (US)
31AQI (US)
28th April 2026
52AQI (US)
52AQI (US)
29th April 2026
48AQI (US)
48AQI (US)
30th April 2026
26AQI (US)
26AQI (US)
1st May 2026
32AQI (US)
32AQI (US)
2nd May 2026
54AQI (US)
54AQI (US)
3rd May 2026
38AQI (US)
38AQI (US)
4th May 2026
26AQI (US)
26AQI (US)
5th May 2026
26AQI (US)
26AQI (US)
6th May 2026
31AQI (US)
31AQI (US)
7th May 2026
42AQI (US)
42AQI (US)
8th May 2026
30AQI (US)
30AQI (US)
9th May 2026
27AQI (US)
27AQI (US)
10th May 2026
32AQI (US)
32AQI (US)
11th May 2026
34AQI (US)
34AQI (US)
12th May 2026
33AQI (US)
33AQI (US)
13th May 2026
42AQI (US)
42AQI (US)
14th May 2026
32AQI (US)
32AQI (US)
15th May 2026
34AQI (US)
34AQI (US)
16th May 2026
78AQI (US)
78AQI (US)
17th May 2026
64AQI (US)
64AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
47AQI (US)
47AQI (US)
20th May 2026
61AQI (US)
61AQI (US)
21st May 2026
64AQI (US)
64AQI (US)
22nd May 2026
70AQI (US)
70AQI (US)
23rd May 2026
60AQI (US)
60AQI (US)
24th May 2026
63AQI (US)
63AQI (US)
25th May 2026
54AQI (US)
54AQI (US)
26th May 2026
41AQI (US)
41AQI (US)
27th May 2026
26AQI (US)
26AQI (US)
28th May 2026
26AQI (US)
26AQI (US)
29th May 2026
26AQI (US)
26AQI (US)
30th May 2026
26AQI (US)
26AQI (US)
31st May 2026
28AQI (US)
28AQI (US)
1st June 2026
34AQI (US)
34AQI (US)
2nd June 2026
22AQI (US)
22AQI (US)
3rd June 2026
17AQI (US)
17AQI (US)
4th June 2026
26AQI (US)
26AQI (US)
5th June 2026
23AQI (US)
23AQI (US)
6th June 2026
26AQI (US)
26AQI (US)
7th June 2026
24AQI (US)
24AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
24AQI (US)
24AQI (US)
10th June 2026
23AQI (US)
23AQI (US)
11th June 2026
27AQI (US)
27AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
28AQI (US)
28AQI (US)
14th June 2026
26AQI (US)
26AQI (US)
15th June 2026
26AQI (US)
26AQI (US)
16th June 2026
28AQI (US)
28AQI (US)
17th June 2026
26AQI (US)
26AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
41AQI (US)
41AQI (US)
20th June 2026
52AQI (US)
52AQI (US)
21st June 2026
24AQI (US)
24AQI (US)
22nd June 2026
14AQI (US)
14AQI (US)
23rd June 2026
22AQI (US)
22AQI (US)
24th June 2026
21AQI (US)
21AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
28AQI (US)
28AQI (US)
27th June 2026
27AQI (US)
27AQI (US)
28th June 2026
36AQI (US)
36AQI (US)
29th June 2026
28AQI (US)
28AQI (US)
30th June 2026
46AQI (US)
46AQI (US)
1st July 2026
62AQI (US)
62AQI (US)
2nd July 2026
15AQI (US)
15AQI (US)
3rd July 2026
24AQI (US)
24AQI (US)
4th July 2026
26AQI (US)
26AQI (US)
5th July 2026
22AQI (US)
22AQI (US)
6th July 2026
22AQI (US)
22AQI (US)
7th July 2026
28AQI (US)
28AQI (US)
8th July 2026
56AQI (US)
56AQI (US)
9th July 2026
34AQI (US)
34AQI (US)
10th July 2026
32AQI (US)
32AQI (US)
11th July 2026
29AQI (US)
29AQI (US)
12th July 2026
28AQI (US)
28AQI (US)
13th July 2026
28AQI (US)
28AQI (US)
14th July 2026
28AQI (US)
28AQI (US)
15th July 2026
26AQI (US)
26AQI (US)
16th July 2026
31AQI (US)
31AQI (US)
17th July 2026
36AQI (US)
36AQI (US)
18th July 2026
60AQI (US)
60AQI (US)
19th July 2026
62AQI (US)
62AQI (US)
20th July 2026
61AQI (US)
61AQI (US)
21st July 2026
66AQI (US)
66AQI (US)
22nd July 2026
68AQI (US)
68AQI (US)
23rd July 2026
60AQI (US)
60AQI (US)
24th July 2026
60AQI (US)
60AQI (US)
25th July 2026
55AQI (US)
55AQI (US)
26th July 2026
56AQI (US)
56AQI (US)
27th July 2026
48AQI (US)
48AQI (US)
28th July 2026
42AQI (US)
42AQI (US)
29th July 2026
32AQI (US)
32AQI (US)
30th July 2026
29AQI (US)
29AQI (US)
31st July 2026
33AQI (US)
33AQI (US)
1st August 2026
46AQI (US)
46AQI (US)
2nd August 2026
43AQI (US)
43AQI (US)
3rd August 2026
46AQI (US)
46AQI (US)
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
37AQI (US)
45AQI (US)
52AQI (US)
42AQI (US)
42AQI (US)
27AQI (US)
41AQI (US)
45AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202641AQI (US)
25
6
19
9
15
16
21
9
21
10
29
1
20
11
3
153
62
Highest AQI (US) recorded in
March52AQI (US)
Lowest AQI (US) recorded in
June27AQI (US)
202550AQI (US)
25
6
23
5
14
16
1
17
13
20
11
12
18
17
13
1
26
5
30
6
25
4
26
15
16
209
154
2
Highest AQI (US) recorded in
November59AQI (US)
Lowest AQI (US) recorded in
September33AQI (US)
202445AQI (US)
29
2
22
6
1
18
13
7
21
2
12
19
16
14
27
4
23
8
20
10
25
6
21
9
31
251
112
3
Highest AQI (US) recorded in
April63AQI (US)
Lowest AQI (US) recorded in
December32AQI (US)
202349AQI (US)
24
7
25
3
16
15
10
20
14
17
7
23
14
17
27
4
19
11
22
9
21
8
22
9
221
143
Highest AQI (US) recorded in
June59AQI (US)
Lowest AQI (US) recorded in
August40AQI (US)
202247AQI (US)
27
4
19
3
16
15
15
15
9
22
10
20
15
8
1
26
2
26
5
25
5
31
220
99
Highest AQI (US) recorded in
May61AQI (US)
Lowest AQI (US) recorded in
December36AQI (US)
202145AQI (US)
23
8
22
5
1
22
7
16
5
13
18
10
20
19
12
25
6
23
7
22
9
22
8
30
1
247
106
1
Highest AQI (US) recorded in
June58AQI (US)
Lowest AQI (US) recorded in
January38AQI (US)
202046AQI (US)
8
4
1
15
6
9
9
16
14
22
9
11
16
4
17
2
26
5
25
5
30
1
179
71
5
Highest AQI (US) recorded in
August66AQI (US)
Lowest AQI (US) recorded in
December35AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
50AQI (US)Least Polluted Year Recorded
2026(Avg.)
41AQI (US)Niihama's annual 2026 AQI (US) (41) shows an average percentage change of -12.6% (improved AQI (US)) compared to previous years: 2020 (46), 2021 (45), 2022 (47), 2023 (49), 2024 (45), 2025 (50).
