Hirai, Shinshiro, Aichi, 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
Hirai, Shinshiro, Aichi, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
65AQILowest AQI recorded on
31st Aug 2022
8AQISame Day Analysis (8th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 27 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 7th Aug - 8th Aug 2026
Hirai, Shinshiro, Aichi, Japan
AQI
Day
Night
.
4 AM7th Aug 2026
6 PM
3 AM8th Aug 2026
Day time
Avg. Highest Time
4PM7th Aug
40AQI
Avg. Lowest Time
8AM7th Aug
21AQI
Night time
Avg. Highest Time
8PM7th Aug
33AQI
Avg. Lowest Time
3AM8th Aug
25AQI
In the last 24 hours,
Hirai's AQI reached its highest point of 40 at 4 PM during the Day, while the lowest point, 21, was recorded at 8 AM during the Day between 7th Aug and 8th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Hirai, Shinshiro, Aichi, Japan
JulAug
10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th
Day
Night
10th Jul 2026234 AMAQI
10th Jul 2026275 AMAQI
10th Jul 2026266 AMAQI
10th Jul 2026257 AMAQI
10th Jul 2026278 AMAQI
10th Jul 2026269 AMAQI
10th Jul 20262710 AMAQI
10th Jul 20262611 AMAQI
10th Jul 20262812 PMAQI
10th Jul 2026241 PMAQI
10th Jul 2026222 PMAQI
10th Jul 2026203 PMAQI
10th Jul 2026244 PMAQI
10th Jul 2026285 PMAQI
10th Jul 2026266 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026288 PMAQI
10th Jul 2026299 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20262011 PMAQI
11th Jul 20263012 AMAQI
11th Jul 2026291 AMAQI
11th Jul 2026302 AMAQI
11th Jul 202683 AMAQI
25°C20/30°C
11th Jul 2026264 AMAQI
11th Jul 2026285 AMAQI
11th Jul 2026306 AMAQI
11th Jul 2026187 AMAQI
11th Jul 2026208 AMAQI
11th Jul 2026309 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20262611 AMAQI
11th Jul 20261612 PMAQI
11th Jul 2026221 PMAQI
11th Jul 2026222 PMAQI
11th Jul 2026203 PMAQI
11th Jul 2026224 PMAQI
11th Jul 2026285 PMAQI
11th Jul 2026176 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026238 PMAQI
11th Jul 2026289 PMAQI
11th Jul 20262910 PMAQI
11th Jul 20262811 PMAQI
12th Jul 20262812 AMAQI
12th Jul 2026291 AMAQI
12th Jul 2026202 AMAQI
12th Jul 2026163 AMAQI
25°C20/30°C
12th Jul 2026264 AMAQI
12th Jul 2026275 AMAQI
12th Jul 2026276 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026308 AMAQI
12th Jul 2026289 AMAQI
12th Jul 20262710 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262512 PMAQI
12th Jul 2026221 PMAQI
12th Jul 2026222 PMAQI
12th Jul 2026223 PMAQI
12th Jul 2026224 PMAQI
12th Jul 2026275 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026318 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20266310 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20263112 AMAQI
13th Jul 2026291 AMAQI
13th Jul 2026332 AMAQI
13th Jul 2026383 AMAQI
26°C21/30°C
13th Jul 2026364 AMAQI
13th Jul 2026335 AMAQI
13th Jul 2026386 AMAQI
13th Jul 2026367 AMAQI
13th Jul 2026368 AMAQI
13th Jul 2026299 AMAQI
13th Jul 20264210 AMAQI
13th Jul 20263811 AMAQI
13th Jul 20263812 PMAQI
13th Jul 2026511 PMAQI
13th Jul 2026542 PMAQI
13th Jul 2026403 PMAQI
13th Jul 2026444 PMAQI
13th Jul 2026365 PMAQI
13th Jul 2026366 PMAQI
13th Jul 2026337 PMAQI
13th Jul 2026318 PMAQI
13th Jul 2026319 PMAQI
13th Jul 20263110 PMAQI
13th Jul 20263111 PMAQI
14th Jul 20262912 AMAQI
14th Jul 2026331 AMAQI
14th Jul 2026292 AMAQI
14th Jul 2026293 AMAQI
26°C23/30°C
14th Jul 2026294 AMAQI
14th Jul 2026295 AMAQI
14th Jul 2026276 AMAQI
14th Jul 2026257 AMAQI
14th Jul 2026258 AMAQI
14th Jul 2026279 AMAQI
14th Jul 20262910 AMAQI
14th Jul 20263811 AMAQI
14th Jul 20263112 PMAQI
14th Jul 2026271 PMAQI
14th Jul 2026292 PMAQI
14th Jul 2026313 PMAQI
14th Jul 2026294 PMAQI
14th Jul 2026295 PMAQI
14th Jul 2026316 PMAQI
14th Jul 2026297 PMAQI
14th Jul 2026338 PMAQI
14th Jul 2026299 PMAQI
14th Jul 20262510 PMAQI
14th Jul 20262911 PMAQI
15th Jul 20263212 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026312 AMAQI
15th Jul 2026283 AMAQI
28°C22/35°C
15th Jul 2026264 AMAQI
15th Jul 2026305 AMAQI
15th Jul 2026226 AMAQI
15th Jul 2026297 AMAQI
15th Jul 2026278 AMAQI
15th Jul 2026289 AMAQI
15th Jul 20263010 AMAQI
15th Jul 20262611 AMAQI
15th Jul 20262612 PMAQI
15th Jul 2026241 PMAQI
15th Jul 2026232 PMAQI
15th Jul 2026213 PMAQI
15th Jul 2026234 PMAQI
15th Jul 2026405 PMAQI
15th Jul 2026516 PMAQI
15th Jul 2026507 PMAQI
15th Jul 2026388 PMAQI
15th Jul 2026429 PMAQI
15th Jul 20263310 PMAQI
15th Jul 20265111 PMAQI
16th Jul 20265112 AMAQI
16th Jul 2026501 AMAQI
16th Jul 2026502 AMAQI
16th Jul 2026383 AMAQI
29°C23/35°C
16th Jul 2026424 AMAQI
16th Jul 2026535 AMAQI
16th Jul 2026526 AMAQI
16th Jul 2026467 AMAQI
16th Jul 2026408 AMAQI
16th Jul 2026409 AMAQI
16th Jul 20264810 AMAQI
16th Jul 20266811 AMAQI
16th Jul 20266512 PMAQI
16th Jul 2026591 PMAQI
16th Jul 2026572 PMAQI
16th Jul 2026463 PMAQI
16th Jul 2026534 PMAQI
16th Jul 2026535 PMAQI
16th Jul 2026516 PMAQI
16th Jul 2026527 PMAQI
16th Jul 2026578 PMAQI
16th Jul 2026599 PMAQI
16th Jul 20265810 PMAQI
16th Jul 20265911 PMAQI
17th Jul 20266412 AMAQI
17th Jul 2026501 AMAQI
17th Jul 2026442 AMAQI
17th Jul 2026513 AMAQI
30°C25/36°C
17th Jul 2026384 AMAQI
17th Jul 2026445 AMAQI
17th Jul 2026486 AMAQI
17th Jul 2026517 AMAQI
17th Jul 2026468 AMAQI
17th Jul 2026469 AMAQI
17th Jul 20265410 AMAQI
17th Jul 20265311 AMAQI
17th Jul 20264912 PMAQI
17th Jul 2026381 PMAQI
17th Jul 2026312 PMAQI
17th Jul 2026283 PMAQI
17th Jul 2026624 PMAQI
17th Jul 2026625 PMAQI
17th Jul 2026606 PMAQI
17th Jul 2026627 PMAQI
17th Jul 2026608 PMAQI
17th Jul 2026599 PMAQI
17th Jul 20266010 PMAQI
17th Jul 20265911 PMAQI
18th Jul 20265712 AMAQI
18th Jul 2026581 AMAQI
18th Jul 2026562 AMAQI
18th Jul 2026553 AMAQI
27°C24/31°C
18th Jul 2026574 AMAQI
18th Jul 2026545 AMAQI
18th Jul 2026546 AMAQI
18th Jul 2026537 AMAQI
18th Jul 2026518 AMAQI
18th Jul 2026509 AMAQI
18th Jul 20264610 AMAQI
18th Jul 20264611 AMAQI
18th Jul 20264012 PMAQI
18th Jul 2026401 PMAQI
18th Jul 2026332 PMAQI
18th Jul 2026343 PMAQI
18th Jul 2026294 PMAQI
18th Jul 2026295 PMAQI
18th Jul 2026316 PMAQI
18th Jul 2026297 PMAQI
18th Jul 2026298 PMAQI
18th Jul 2026279 PMAQI
18th Jul 20262910 PMAQI
18th Jul 20262711 PMAQI
19th Jul 20263112 AMAQI
19th Jul 2026311 AMAQI
19th Jul 2026232 AMAQI
19th Jul 2026213 AMAQI
26°C23/29°C
19th Jul 2026194 AMAQI
19th Jul 2026175 AMAQI
19th Jul 2026176 AMAQI
19th Jul 2026177 AMAQI
19th Jul 2026128 AMAQI
19th Jul 202689 AMAQI
19th Jul 20261710 AMAQI
19th Jul 20261711 AMAQI
19th Jul 20262112 PMAQI
19th Jul 2026191 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026173 PMAQI
19th Jul 202684 PMAQI
19th Jul 2026195 PMAQI
19th Jul 2026216 PMAQI
19th Jul 2026237 PMAQI
19th Jul 2026218 PMAQI
19th Jul 2026219 PMAQI
19th Jul 20262110 PMAQI
19th Jul 20262311 PMAQI
20th Jul 20261912 AMAQI
20th Jul 2026271 AMAQI
20th Jul 2026212 AMAQI
20th Jul 2026233 AMAQI
27°C22/30°C
20th Jul 2026214 AMAQI
20th Jul 2026215 AMAQI
20th Jul 2026256 AMAQI
20th Jul 2026217 AMAQI
20th Jul 2026218 AMAQI
20th Jul 2026299 AMAQI
20th Jul 20262110 AMAQI
20th Jul 20263411 AMAQI
20th Jul 20262112 PMAQI
20th Jul 2026441 PMAQI
20th Jul 2026442 PMAQI
20th Jul 2026403 PMAQI
20th Jul 2026334 PMAQI
20th Jul 2026385 PMAQI
20th Jul 2026406 PMAQI
20th Jul 2026367 PMAQI
20th Jul 2026368 PMAQI
20th Jul 2026409 PMAQI
20th Jul 20262710 PMAQI
20th Jul 20262711 PMAQI
21st Jul 20263412 AMAQI
21st Jul 2026331 AMAQI
21st Jul 2026292 AMAQI
21st Jul 2026253 AMAQI
28°C24/32°C
21st Jul 2026274 AMAQI
21st Jul 2026275 AMAQI
21st Jul 2026336 AMAQI
21st Jul 2026347 AMAQI
21st Jul 2026368 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20264010 AMAQI
21st Jul 20263811 AMAQI
21st Jul 2026571 PMAQI
21st Jul 2026592 PMAQI
21st Jul 2026603 PMAQI
21st Jul 2026664 PMAQI
21st Jul 2026655 PMAQI
21st Jul 2026816 PMAQI
21st Jul 20261127 PMAQI
21st Jul 2026768 PMAQI
21st Jul 2026799 PMAQI
21st Jul 20268510 PMAQI
21st Jul 20268411 PMAQI
22nd Jul 20267312 AMAQI
22nd Jul 2026711 AMAQI
22nd Jul 2026742 AMAQI
22nd Jul 2026713 AMAQI
30°C24/36°C
22nd Jul 2026694 AMAQI
22nd Jul 2026725 AMAQI
22nd Jul 2026706 AMAQI
22nd Jul 2026727 AMAQI
22nd Jul 2026608 AMAQI
22nd Jul 2026629 AMAQI
22nd Jul 20267510 AMAQI
22nd Jul 20268511 AMAQI
22nd Jul 20268812 PMAQI
22nd Jul 2026851 PMAQI
22nd Jul 2026942 PMAQI
22nd Jul 2026903 PMAQI
22nd Jul 2026894 PMAQI
22nd Jul 2026925 PMAQI
22nd Jul 2026876 PMAQI
22nd Jul 2026887 PMAQI
22nd Jul 2026958 PMAQI
22nd Jul 2026909 PMAQI
22nd Jul 20268610 PMAQI
22nd Jul 20269211 PMAQI
23rd Jul 20268212 AMAQI
23rd Jul 2026741 AMAQI
23rd Jul 2026782 AMAQI
23rd Jul 2026763 AMAQI
30°C25/37°C
23rd Jul 2026754 AMAQI
23rd Jul 2026715 AMAQI
23rd Jul 2026666 AMAQI
23rd Jul 2026737 AMAQI
23rd Jul 2026578 AMAQI
23rd Jul 2026579 AMAQI
23rd Jul 20265810 AMAQI
23rd Jul 20265111 AMAQI
23rd Jul 20264612 PMAQI
23rd Jul 2026501 PMAQI
23rd Jul 2026502 PMAQI
23rd Jul 2026533 PMAQI
23rd Jul 2026514 PMAQI
23rd Jul 2026535 PMAQI
23rd Jul 2026596 PMAQI
23rd Jul 2026667 PMAQI
23rd Jul 2026708 PMAQI
23rd Jul 2026759 PMAQI
23rd Jul 20267810 PMAQI
23rd Jul 20267311 PMAQI
24th Jul 20267112 AMAQI
24th Jul 2026761 AMAQI
24th Jul 2026742 AMAQI
24th Jul 2026513 AMAQI
31°C25/38°C
24th Jul 2026724 AMAQI
24th Jul 2026655 AMAQI
24th Jul 2026646 AMAQI
24th Jul 2026567 AMAQI
24th Jul 2026518 AMAQI
24th Jul 2026679 AMAQI
24th Jul 20267810 AMAQI
24th Jul 20269211 AMAQI
24th Jul 20269512 PMAQI
24th Jul 2026761 PMAQI
24th Jul 2026842 PMAQI
24th Jul 2026923 PMAQI
24th Jul 2026984 PMAQI
24th Jul 2026885 PMAQI
24th Jul 2026856 PMAQI
24th Jul 2026887 PMAQI
24th Jul 2026908 PMAQI
24th Jul 2026929 PMAQI
24th Jul 20269410 PMAQI
24th Jul 20269011 PMAQI
25th Jul 20268512 AMAQI
25th Jul 2026831 AMAQI
25th Jul 2026832 AMAQI
25th Jul 2026873 AMAQI
30°C24/35°C
25th Jul 2026834 AMAQI
25th Jul 2026835 AMAQI
25th Jul 2026716 AMAQI
25th Jul 2026747 AMAQI
25th Jul 2026558 AMAQI
25th Jul 2026609 AMAQI
25th Jul 20266810 AMAQI
25th Jul 20266611 AMAQI
25th Jul 20267412 PMAQI
25th Jul 2026541 PMAQI
25th Jul 2026482 PMAQI
25th Jul 2026513 PMAQI
25th Jul 2026504 PMAQI
25th Jul 2026385 PMAQI
25th Jul 2026526 PMAQI
25th Jul 2026487 PMAQI
25th Jul 2026518 PMAQI
25th Jul 2026539 PMAQI
25th Jul 20265110 PMAQI
25th Jul 20265511 PMAQI
26th Jul 20264412 AMAQI
26th Jul 2026521 AMAQI
26th Jul 2026652 AMAQI
26th Jul 2026663 AMAQI
30°C24/36°C
26th Jul 2026664 AMAQI
26th Jul 2026685 AMAQI
26th Jul 2026626 AMAQI
26th Jul 2026647 AMAQI
26th Jul 2026578 AMAQI
26th Jul 2026529 AMAQI
26th Jul 20266610 AMAQI
26th Jul 20267411 AMAQI
26th Jul 20265712 PMAQI
26th Jul 2026491 PMAQI
26th Jul 2026542 PMAQI
26th Jul 2026533 PMAQI
26th Jul 2026464 PMAQI
26th Jul 2026425 PMAQI
26th Jul 2026516 PMAQI
26th Jul 2026527 PMAQI
26th Jul 2026468 PMAQI
26th Jul 2026409 PMAQI
26th Jul 20263310 PMAQI
26th Jul 20262511 PMAQI
27th Jul 20262712 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026312 AMAQI
27th Jul 2026133 AMAQI
28°C25/33°C
27th Jul 2026294 AMAQI
27th Jul 2026295 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026277 AMAQI
27th Jul 2026278 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20262710 AMAQI
27th Jul 20262911 AMAQI
27th Jul 20262912 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026332 PMAQI
27th Jul 2026403 PMAQI
27th Jul 2026364 PMAQI
27th Jul 2026315 PMAQI
27th Jul 2026296 PMAQI
27th Jul 2026277 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026279 PMAQI
27th Jul 20262310 PMAQI
27th Jul 20262511 PMAQI
28th Jul 20262512 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026213 AMAQI
28°C24/33°C
28th Jul 2026214 AMAQI
28th Jul 2026235 AMAQI
28th Jul 2026216 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026278 AMAQI
28th Jul 2026319 AMAQI
28th Jul 20263310 AMAQI
28th Jul 20262711 AMAQI
28th Jul 20263812 PMAQI
28th Jul 2026381 PMAQI
28th Jul 2026292 PMAQI
28th Jul 2026553 PMAQI
28th Jul 2026564 PMAQI
28th Jul 2026565 PMAQI
28th Jul 2026546 PMAQI
28th Jul 2026407 PMAQI
28th Jul 2026218 PMAQI
28th Jul 2026219 PMAQI
28th Jul 20262110 PMAQI
28th Jul 20262311 PMAQI
29th Jul 20262312 AMAQI
29th Jul 2026231 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026213 AMAQI
26°C23/30°C
29th Jul 2026254 AMAQI
29th Jul 2026255 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026237 AMAQI
29th Jul 2026218 AMAQI
29th Jul 2026219 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20262511 AMAQI
29th Jul 20262712 PMAQI
29th Jul 2026271 PMAQI
29th Jul 2026272 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026294 PMAQI
29th Jul 2026315 PMAQI
29th Jul 2026276 PMAQI
29th Jul 2026297 PMAQI
29th Jul 2026298 PMAQI
29th Jul 2026279 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20262511 PMAQI
30th Jul 20262912 AMAQI
30th Jul 2026291 AMAQI
30th Jul 2026272 AMAQI
30th Jul 2026293 AMAQI
28°C23/33°C
30th Jul 2026254 AMAQI
30th Jul 2026255 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026237 AMAQI
30th Jul 2026258 AMAQI
30th Jul 2026259 AMAQI
30th Jul 20263110 AMAQI
30th Jul 20263611 AMAQI
30th Jul 20264512 PMAQI
30th Jul 2026551 PMAQI
30th Jul 2026592 PMAQI
30th Jul 2026543 PMAQI
30th Jul 2026514 PMAQI
30th Jul 2026525 PMAQI
30th Jul 2026536 PMAQI
30th Jul 2026527 PMAQI
30th Jul 2026468 PMAQI
30th Jul 2026409 PMAQI
30th Jul 20263310 PMAQI
30th Jul 20263611 PMAQI
31st Jul 20263312 AMAQI
31st Jul 2026331 AMAQI
31st Jul 2026292 AMAQI
31st Jul 2026233 AMAQI
29°C23/36°C
31st Jul 2026294 AMAQI
31st Jul 2026255 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026257 AMAQI
31st Jul 2026328 AMAQI
31st Jul 2026299 AMAQI
31st Jul 20262110 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262912 PMAQI
31st Jul 2026361 PMAQI
31st Jul 2026502 PMAQI
31st Jul 2026523 PMAQI
31st Jul 2026314 PMAQI
31st Jul 2026295 PMAQI
31st Jul 2026366 PMAQI
31st Jul 2026367 PMAQI
31st Jul 2026558 PMAQI
31st Jul 2026369 PMAQI
31st Jul 20262710 PMAQI
31st Jul 20262911 PMAQI
1st Aug 20262712 AMAQI
1st Aug 2026271 AMAQI
1st Aug 2026312 AMAQI
1st Aug 2026313 AMAQI
29°C24/36°C
1st Aug 2026364 AMAQI
1st Aug 2026445 AMAQI
1st Aug 2026426 AMAQI
1st Aug 2026427 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026409 AMAQI
1st Aug 20264010 AMAQI
1st Aug 20264811 AMAQI
1st Aug 20265212 PMAQI
1st Aug 2026511 PMAQI
1st Aug 2026542 PMAQI
1st Aug 2026493 PMAQI
1st Aug 2026404 PMAQI
1st Aug 2026385 PMAQI
1st Aug 2026366 PMAQI
1st Aug 2026387 PMAQI
1st Aug 2026408 PMAQI
1st Aug 2026389 PMAQI
1st Aug 20262310 PMAQI
1st Aug 20262311 PMAQI
2nd Aug 20262512 AMAQI
2nd Aug 2026211 AMAQI
2nd Aug 2026362 AMAQI
2nd Aug 2026533 AMAQI
30°C24/36°C
2nd Aug 2026404 AMAQI
2nd Aug 2026405 AMAQI
2nd Aug 2026366 AMAQI
2nd Aug 2026367 AMAQI
2nd Aug 2026298 AMAQI
2nd Aug 2026589 AMAQI
2nd Aug 20263610 AMAQI
2nd Aug 20263811 AMAQI
2nd Aug 20265012 PMAQI
2nd Aug 2026521 PMAQI
2nd Aug 2026552 PMAQI
2nd Aug 2026563 PMAQI
2nd Aug 2026564 PMAQI
2nd Aug 2026535 PMAQI
2nd Aug 2026506 PMAQI
2nd Aug 2026537 PMAQI
2nd Aug 2026508 PMAQI
2nd Aug 2026559 PMAQI
2nd Aug 20265410 PMAQI
2nd Aug 20265311 PMAQI
3rd Aug 20265312 AMAQI
3rd Aug 2026551 AMAQI
3rd Aug 2026562 AMAQI
3rd Aug 2026553 AMAQI
29°C25/35°C
3rd Aug 2026564 AMAQI
3rd Aug 2026535 AMAQI
3rd Aug 2026526 AMAQI
3rd Aug 2026567 AMAQI
3rd Aug 2026538 AMAQI
3rd Aug 2026509 AMAQI
3rd Aug 20265110 AMAQI
3rd Aug 20265411 AMAQI
3rd Aug 20265112 PMAQI
3rd Aug 2026421 PMAQI
3rd Aug 2026462 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026334 PMAQI
3rd Aug 2026335 PMAQI
3rd Aug 2026316 PMAQI
3rd Aug 2026317 PMAQI
3rd Aug 2026278 PMAQI
3rd Aug 2026299 PMAQI
3rd Aug 20262910 PMAQI
3rd Aug 20262511 PMAQI
4th Aug 20262512 AMAQI
4th Aug 2026251 AMAQI
4th Aug 2026252 AMAQI
4th Aug 2026233 AMAQI
27°C25/29°C
4th Aug 2026234 AMAQI
4th Aug 2026235 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026217 AMAQI
4th Aug 2026198 AMAQI
4th Aug 2026239 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262511 AMAQI
4th Aug 20262512 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026212 PMAQI
4th Aug 2026253 PMAQI
4th Aug 2026314 PMAQI
4th Aug 2026235 PMAQI
4th Aug 2026386 PMAQI
4th Aug 2026427 PMAQI
4th Aug 2026298 PMAQI
4th Aug 2026349 PMAQI
4th Aug 20262710 PMAQI
4th Aug 20263311 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026331 AMAQI
5th Aug 2026312 AMAQI
5th Aug 2026293 AMAQI
25°C23/29°C
5th Aug 2026294 AMAQI
5th Aug 2026295 AMAQI
5th Aug 2026296 AMAQI
5th Aug 2026297 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026279 AMAQI
5th Aug 20262710 AMAQI
5th Aug 20262711 AMAQI
5th Aug 20262712 PMAQI
5th Aug 2026291 PMAQI
5th Aug 2026272 PMAQI
5th Aug 2026293 PMAQI
5th Aug 2026314 PMAQI
5th Aug 2026275 PMAQI
5th Aug 2026276 PMAQI
5th Aug 2026297 PMAQI
5th Aug 2026298 PMAQI
5th Aug 2026299 PMAQI
5th Aug 20262910 PMAQI
5th Aug 20262911 PMAQI
6th Aug 20262912 AMAQI
6th Aug 2026291 AMAQI
6th Aug 2026272 AMAQI
6th Aug 2026273 AMAQI
27°C21/33°C
6th Aug 2026274 AMAQI
6th Aug 2026295 AMAQI
6th Aug 2026296 AMAQI
6th Aug 2026257 AMAQI
6th Aug 2026258 AMAQI
6th Aug 2026259 AMAQI
6th Aug 20262510 AMAQI
6th Aug 20262511 AMAQI
6th Aug 20262512 PMAQI
6th Aug 2026231 PMAQI
6th Aug 2026232 PMAQI
6th Aug 2026233 PMAQI
6th Aug 2026214 PMAQI
6th Aug 2026235 PMAQI
6th Aug 2026216 PMAQI
6th Aug 2026217 PMAQI
6th Aug 2026218 PMAQI
6th Aug 2026219 PMAQI
6th Aug 20262110 PMAQI
6th Aug 20262111 PMAQI
7th Aug 20262512 AMAQI
7th Aug 2026271 AMAQI
7th Aug 2026252 AMAQI
7th Aug 2026293 AMAQI
28°C23/33°C
7th Aug 2026254 AMAQI
7th Aug 2026295 AMAQI
7th Aug 2026256 AMAQI
7th Aug 2026217 AMAQI
7th Aug 2026218 AMAQI
7th Aug 2026259 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20262511 AMAQI
7th Aug 20262512 PMAQI
7th Aug 2026321 PMAQI
7th Aug 2026252 PMAQI
7th Aug 2026383 PMAQI
7th Aug 2026404 PMAQI
7th Aug 2026275 PMAQI
7th Aug 2026236 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026338 PMAQI
7th Aug 2026339 PMAQI
7th Aug 20263310 PMAQI
7th Aug 20262511 PMAQI
8th Aug 20262912 AMAQI
8th Aug 2026291 AMAQI
8th Aug 2026252 AMAQI
8th Aug 2026253 AMAQI
27°C23/32°C
8th Aug 2026254 AMAQI
4 AM8th Aug 2026215 AMAQI
8th Aug 2026216 AMAQI
8th Aug 2026257 AMAQI
8th Aug 2026238 AMAQI
8th Aug 2026219 AMAQI
8th Aug 20262510 AMAQI
8th Aug 20262511 AMAQI
11 AM8th Aug 20262712 PMAQI
8th Aug 2026251 PMAQI
8th Aug 2026272 PMAQI
8th Aug 2026333 PMAQI
8th Aug 2026314 PMAQI
8th Aug 2026295 PMAQI
8th Aug 2026366 PMAQI
6 PM8th Aug 2026217 PMAQI
8th Aug 2026258 PMAQI
8th Aug 2026259 PMAQI
8th Aug 20263310 PMAQI
8th Aug 20263311 PMAQI
11 PM3 AM
27°C23/32°C
Day time
Avg. Highest Time
11 AM - 6 PM
41AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
8 AM
34AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 6 PM (Avg. 41), while the lowest AQI was between 8 AM to 8 AM (Avg. 34).
Night time
Avg. Highest Time
7 PM - 11 PM
41AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
3 AM
36AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 41), while the lowest AQI was between 3 AM to 3 AM (Avg. 36).
2026 Days Vs Air Quality
Hirai, Shinshiro, Aichi, Japan
2026
83%
182
17%
38
Total number of days with different AQI categories in last 220 days in 2026 (145 days remaining)
Good
182 DaysModerate
38 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2026, 83% of 220 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
Hirai, Shinshiro, Aichi, 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
16AQI (US)
16AQI (US)
2nd January 2026
12AQI (US)
12AQI (US)
3rd January 2026
12AQI (US)
12AQI (US)
4th January 2026
16AQI (US)
16AQI (US)
5th January 2026
28AQI (US)
28AQI (US)
6th January 2026
17AQI (US)
17AQI (US)
7th January 2026
14AQI (US)
14AQI (US)
8th January 2026
23AQI (US)
23AQI (US)
9th January 2026
12AQI (US)
12AQI (US)
10th January 2026
21AQI (US)
21AQI (US)
11th January 2026
17AQI (US)
17AQI (US)
12th January 2026
15AQI (US)
15AQI (US)
13th January 2026
20AQI (US)
20AQI (US)
14th January 2026
18AQI (US)
18AQI (US)
15th January 2026
33AQI (US)
33AQI (US)
16th January 2026
42AQI (US)
42AQI (US)
17th January 2026
48AQI (US)
48AQI (US)
18th January 2026
43AQI (US)
43AQI (US)
19th January 2026
37AQI (US)
37AQI (US)
20th January 2026
25AQI (US)
25AQI (US)
21st January 2026
10AQI (US)
10AQI (US)
22nd January 2026
19AQI (US)
19AQI (US)
23rd January 2026
33AQI (US)
33AQI (US)
24th January 2026
45AQI (US)
45AQI (US)
25th January 2026
18AQI (US)
18AQI (US)
26th January 2026
15AQI (US)
15AQI (US)
27th January 2026
35AQI (US)
35AQI (US)
28th January 2026
28AQI (US)
28AQI (US)
29th January 2026
19AQI (US)
19AQI (US)
30th January 2026
32AQI (US)
32AQI (US)
31st January 2026
31AQI (US)
31AQI (US)
1st February 2026
31AQI (US)
31AQI (US)
2nd February 2026
39AQI (US)
39AQI (US)
3rd February 2026
30AQI (US)
30AQI (US)
4th February 2026
24AQI (US)
24AQI (US)
5th February 2026
54AQI (US)
54AQI (US)
6th February 2026
52AQI (US)
52AQI (US)
7th February 2026
15AQI (US)
15AQI (US)
8th February 2026
15AQI (US)
15AQI (US)
9th February 2026
31AQI (US)
31AQI (US)
10th February 2026
35AQI (US)
35AQI (US)
11th February 2026
38AQI (US)
38AQI (US)
12th February 2026
38AQI (US)
38AQI (US)
13th February 2026
51AQI (US)
51AQI (US)
14th February 2026
63AQI (US)
63AQI (US)
15th February 2026
61AQI (US)
61AQI (US)
16th February 2026
54AQI (US)
54AQI (US)
17th February 2026
20AQI (US)
20AQI (US)
18th February 2026
29AQI (US)
29AQI (US)
19th February 2026
31AQI (US)
31AQI (US)
20th February 2026
31AQI (US)
31AQI (US)
21st February 2026
50AQI (US)
50AQI (US)
22nd February 2026
41AQI (US)
41AQI (US)
23rd February 2026
51AQI (US)
51AQI (US)
24th February 2026
53AQI (US)
53AQI (US)
25th February 2026
19AQI (US)
19AQI (US)
26th February 2026
25AQI (US)
25AQI (US)
27th February 2026
40AQI (US)
40AQI (US)
28th February 2026
27AQI (US)
27AQI (US)
1st March 2026
16AQI (US)
16AQI (US)
2nd March 2026
61AQI (US)
61AQI (US)
3rd March 2026
40AQI (US)
40AQI (US)
4th March 2026
20AQI (US)
20AQI (US)
5th March 2026
55AQI (US)
55AQI (US)
6th March 2026
49AQI (US)
49AQI (US)
7th March 2026
47AQI (US)
47AQI (US)
8th March 2026
43AQI (US)
43AQI (US)
9th March 2026
49AQI (US)
49AQI (US)
10th March 2026
58AQI (US)
58AQI (US)
11th March 2026
55AQI (US)
55AQI (US)
12th March 2026
64AQI (US)
64AQI (US)
13th March 2026
43AQI (US)
43AQI (US)
14th March 2026
46AQI (US)
46AQI (US)
15th March 2026
61AQI (US)
61AQI (US)
16th March 2026
58AQI (US)
58AQI (US)
17th March 2026
51AQI (US)
51AQI (US)
18th March 2026
53AQI (US)
53AQI (US)
19th March 2026
33AQI (US)
33AQI (US)
20th March 2026
27AQI (US)
27AQI (US)
21st March 2026
47AQI (US)
47AQI (US)
22nd March 2026
42AQI (US)
42AQI (US)
23rd March 2026
33AQI (US)
33AQI (US)
24th March 2026
57AQI (US)
57AQI (US)
25th March 2026
54AQI (US)
54AQI (US)
26th March 2026
14AQI (US)
14AQI (US)
27th March 2026
18AQI (US)
18AQI (US)
28th March 2026
55AQI (US)
55AQI (US)
29th March 2026
47AQI (US)
47AQI (US)
30th March 2026
43AQI (US)
43AQI (US)
31st March 2026
20AQI (US)
20AQI (US)
1st April 2026
12AQI (US)
12AQI (US)
2nd April 2026
34AQI (US)
34AQI (US)
3rd April 2026
48AQI (US)
48AQI (US)
4th April 2026
42AQI (US)
42AQI (US)
5th April 2026
31AQI (US)
31AQI (US)
6th April 2026
23AQI (US)
23AQI (US)
7th April 2026
35AQI (US)
35AQI (US)
8th April 2026
27AQI (US)
27AQI (US)
9th April 2026
27AQI (US)
27AQI (US)
10th April 2026
46AQI (US)
46AQI (US)
11th April 2026
34AQI (US)
34AQI (US)
12th April 2026
27AQI (US)
27AQI (US)
13th April 2026
36AQI (US)
36AQI (US)
14th April 2026
43AQI (US)
43AQI (US)
15th April 2026
40AQI (US)
40AQI (US)
16th April 2026
35AQI (US)
35AQI (US)
17th April 2026
41AQI (US)
41AQI (US)
18th April 2026
32AQI (US)
32AQI (US)
19th April 2026
39AQI (US)
39AQI (US)
20th April 2026
38AQI (US)
38AQI (US)
21st April 2026
41AQI (US)
41AQI (US)
22nd April 2026
46AQI (US)
46AQI (US)
23rd April 2026
36AQI (US)
36AQI (US)
24th April 2026
26AQI (US)
26AQI (US)
25th April 2026
45AQI (US)
45AQI (US)
26th April 2026
50AQI (US)
50AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
45AQI (US)
45AQI (US)
29th April 2026
36AQI (US)
36AQI (US)
30th April 2026
22AQI (US)
22AQI (US)
1st May 2026
12AQI (US)
12AQI (US)
2nd May 2026
52AQI (US)
52AQI (US)
3rd May 2026
44AQI (US)
44AQI (US)
4th May 2026
25AQI (US)
25AQI (US)
5th May 2026
23AQI (US)
23AQI (US)
6th May 2026
31AQI (US)
31AQI (US)
7th May 2026
33AQI (US)
33AQI (US)
8th May 2026
28AQI (US)
28AQI (US)
9th May 2026
26AQI (US)
26AQI (US)
10th May 2026
28AQI (US)
28AQI (US)
11th May 2026
29AQI (US)
29AQI (US)
12th May 2026
35AQI (US)
35AQI (US)
13th May 2026
44AQI (US)
44AQI (US)
14th May 2026
37AQI (US)
37AQI (US)
15th May 2026
36AQI (US)
36AQI (US)
16th May 2026
86AQI (US)
86AQI (US)
17th May 2026
69AQI (US)
69AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
48AQI (US)
48AQI (US)
20th May 2026
62AQI (US)
62AQI (US)
21st May 2026
61AQI (US)
61AQI (US)
22nd May 2026
61AQI (US)
61AQI (US)
23rd May 2026
54AQI (US)
54AQI (US)
24th May 2026
59AQI (US)
59AQI (US)
25th May 2026
47AQI (US)
47AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
24AQI (US)
24AQI (US)
28th May 2026
25AQI (US)
25AQI (US)
29th May 2026
24AQI (US)
24AQI (US)
30th May 2026
24AQI (US)
24AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
28AQI (US)
28AQI (US)
2nd June 2026
31AQI (US)
31AQI (US)
3rd June 2026
23AQI (US)
23AQI (US)
4th June 2026
14AQI (US)
14AQI (US)
5th June 2026
23AQI (US)
23AQI (US)
6th June 2026
24AQI (US)
24AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
22AQI (US)
22AQI (US)
10th June 2026
23AQI (US)
23AQI (US)
11th June 2026
25AQI (US)
25AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
28AQI (US)
28AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
22AQI (US)
22AQI (US)
16th June 2026
21AQI (US)
21AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
25AQI (US)
25AQI (US)
19th June 2026
29AQI (US)
29AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
18AQI (US)
18AQI (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
27AQI (US)
27AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
28AQI (US)
28AQI (US)
30th June 2026
51AQI (US)
51AQI (US)
1st July 2026
31AQI (US)
31AQI (US)
2nd July 2026
20AQI (US)
20AQI (US)
3rd July 2026
24AQI (US)
24AQI (US)
4th July 2026
24AQI (US)
24AQI (US)
5th July 2026
21AQI (US)
21AQI (US)
6th July 2026
16AQI (US)
16AQI (US)
7th July 2026
22AQI (US)
22AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
24AQI (US)
24AQI (US)
10th July 2026
26AQI (US)
26AQI (US)
11th July 2026
25AQI (US)
25AQI (US)
12th July 2026
28AQI (US)
28AQI (US)
13th July 2026
36AQI (US)
36AQI (US)
14th July 2026
29AQI (US)
29AQI (US)
15th July 2026
32AQI (US)
32AQI (US)
16th July 2026
52AQI (US)
52AQI (US)
17th July 2026
51AQI (US)
51AQI (US)
18th July 2026
42AQI (US)
42AQI (US)
19th July 2026
19AQI (US)
19AQI (US)
20th July 2026
30AQI (US)
30AQI (US)
21st July 2026
53AQI (US)
53AQI (US)
22nd July 2026
80AQI (US)
80AQI (US)
23rd July 2026
64AQI (US)
64AQI (US)
24th July 2026
79AQI (US)
79AQI (US)
25th July 2026
63AQI (US)
63AQI (US)
26th July 2026
54AQI (US)
54AQI (US)
27th July 2026
28AQI (US)
28AQI (US)
28th July 2026
31AQI (US)
31AQI (US)
29th July 2026
25AQI (US)
25AQI (US)
30th July 2026
38AQI (US)
38AQI (US)
31st July 2026
32AQI (US)
32AQI (US)
1st August 2026
39AQI (US)
39AQI (US)
2nd August 2026
45AQI (US)
45AQI (US)
3rd August 2026
44AQI (US)
44AQI (US)
4th August 2026
26AQI (US)
26AQI (US)
5th August 2026
29AQI (US)
29AQI (US)
6th August 2026
24AQI (US)
24AQI (US)
7th August 2026
28AQI (US)
28AQI (US)
8th August 2026
27AQI (US)
27AQI (US)
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
24AQI (US)
37AQI (US)
44AQI (US)
36AQI (US)
40AQI (US)
25AQI (US)
36AQI (US)
33AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
31
20
8
19
12
30
22
9
29
1
23
8
8
182
38
Highest AQI (US) recorded in
March44AQI (US)
Lowest AQI (US) recorded in
January24AQI (US)
202531AQI (US)
31
28
28
3
30
31
30
25
6
21
10
30
29
2
30
31
344
21
Highest AQI (US) recorded in
August47AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
202427AQI (US)
30
29
30
1
30
31
30
31
31
30
31
30
31
364
1
Highest AQI (US) recorded in
May32AQI (US)
Lowest AQI (US) recorded in
October23AQI (US)
202324AQI (US)
31
28
31
30
31
30
31
31
30
31
29
31
364
Highest AQI (US) recorded in
April32AQI (US)
Lowest AQI (US) recorded in
September18AQI (US)
202227AQI (US)
30
21
31
30
25
6
29
1
24
1
3
29
31
30
31
314
8
Highest AQI (US) recorded in
May40AQI (US)
Lowest AQI (US) recorded in
August17AQI (US)
202121AQI (US)
30
28
31
30
31
29
1
31
31
30
31
30
31
363
1
Highest AQI (US) recorded in
June29AQI (US)
Lowest AQI (US) recorded in
January8AQI (US)
202012AQI (US)
13
21
18
30
31
31
19
31
30
31
255
Highest AQI (US) recorded in
August19AQI (US)
Lowest AQI (US) recorded in
December7AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2026(Avg.)
35AQI (US)Least Polluted Year Recorded
2020(Avg.)
12AQI (US)Hirai's annual 2026 AQI (US) (35) shows an average percentage change of 62.7% (worsened AQI (US)) compared to previous years: 2020 (12), 2021 (21), 2022 (27), 2023 (24), 2024 (27), 2025 (31).
