Oiwacho, Toyohashi, 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
Oiwacho, Toyohashi, Aichi, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
66AQILowest AQI recorded on
25th Aug 2023
9AQISame Day Analysis (6th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 32 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Oiwacho, Toyohashi, Aichi, Japan
AQI
Day
Night
.
4 AM5th Aug 2026
7 PM
3 AM6th Aug 2026
Day time
Avg. Highest Time
2PM5th Aug
38AQI
Avg. Lowest Time
6PM5th Aug
29AQI
Night time
Avg. Highest Time
10PM5th Aug
38AQI
Avg. Lowest Time
9PM5th Aug
29AQI
In the last 24 hours,
Oiwacho's AQI reached its highest point of 38 at 2 PM during the Day, while the lowest point, 29, was recorded at 9 PM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Oiwacho, Toyohashi, Aichi, Japan
JulAug
08th - 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 - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
8th Jul 2026254 AMAQI
8th Jul 2026275 AMAQI
8th Jul 2026286 AMAQI
8th Jul 2026277 AMAQI
8th Jul 2026268 AMAQI
8th Jul 2026259 AMAQI
8th Jul 20262710 AMAQI
8th Jul 20262511 AMAQI
8th Jul 20262412 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026273 PMAQI
8th Jul 2026284 PMAQI
8th Jul 2026265 PMAQI
8th Jul 2026236 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026198 PMAQI
8th Jul 2026209 PMAQI
8th Jul 20262010 PMAQI
8th Jul 20262511 PMAQI
9th Jul 20262812 AMAQI
9th Jul 2026301 AMAQI
9th Jul 2026262 AMAQI
9th Jul 2026263 AMAQI
24°C23/26°C
9th Jul 2026244 AMAQI
9th Jul 2026265 AMAQI
9th Jul 2026266 AMAQI
9th Jul 2026267 AMAQI
9th Jul 2026258 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20262410 AMAQI
9th Jul 20262111 AMAQI
9th Jul 20262212 PMAQI
9th Jul 2026211 PMAQI
9th Jul 2026202 PMAQI
9th Jul 2026253 PMAQI
9th Jul 2026284 PMAQI
9th Jul 2026245 PMAQI
9th Jul 2026266 PMAQI
9th Jul 2026247 PMAQI
9th Jul 2026268 PMAQI
9th Jul 2026249 PMAQI
9th Jul 20262610 PMAQI
9th Jul 20262511 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026301 AMAQI
10th Jul 2026262 AMAQI
10th Jul 2026193 AMAQI
25°C22/28°C
10th Jul 2026234 AMAQI
10th Jul 2026285 AMAQI
10th Jul 2026196 AMAQI
10th Jul 2026267 AMAQI
10th Jul 2026168 AMAQI
10th Jul 2026209 AMAQI
10th Jul 20262910 AMAQI
10th Jul 20262411 AMAQI
10th Jul 20262812 PMAQI
10th Jul 2026241 PMAQI
10th Jul 2026262 PMAQI
10th Jul 2026243 PMAQI
10th Jul 2026264 PMAQI
10th Jul 2026285 PMAQI
10th Jul 2026286 PMAQI
10th Jul 2026317 PMAQI
10th Jul 2026288 PMAQI
10th Jul 2026289 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20263011 PMAQI
11th Jul 20263312 AMAQI
11th Jul 2026301 AMAQI
11th Jul 2026202 AMAQI
11th Jul 2026103 AMAQI
26°C23/29°C
11th Jul 2026204 AMAQI
11th Jul 2026295 AMAQI
11th Jul 202686 AMAQI
11th Jul 2026227 AMAQI
11th Jul 2026208 AMAQI
11th Jul 2026209 AMAQI
11th Jul 20263010 AMAQI
11th Jul 20262411 AMAQI
11th Jul 20261912 PMAQI
11th Jul 2026221 PMAQI
11th Jul 2026222 PMAQI
11th Jul 2026213 PMAQI
11th Jul 2026254 PMAQI
11th Jul 2026285 PMAQI
11th Jul 2026276 PMAQI
11th Jul 2026307 PMAQI
11th Jul 2026248 PMAQI
11th Jul 2026289 PMAQI
11th Jul 20262810 PMAQI
11th Jul 20262911 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026321 AMAQI
12th Jul 2026332 AMAQI
12th Jul 2026313 AMAQI
26°C23/29°C
12th Jul 2026284 AMAQI
12th Jul 2026305 AMAQI
12th Jul 2026316 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026288 AMAQI
12th Jul 2026289 AMAQI
12th Jul 20263110 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262512 PMAQI
12th Jul 2026211 PMAQI
12th Jul 2026232 PMAQI
12th Jul 2026243 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026329 PMAQI
12th Jul 20266310 PMAQI
12th Jul 20262611 PMAQI
13th Jul 20262912 AMAQI
13th Jul 2026291 AMAQI
13th Jul 2026332 AMAQI
13th Jul 2026403 AMAQI
27°C24/30°C
13th Jul 2026424 AMAQI
13th Jul 2026365 AMAQI
13th Jul 2026366 AMAQI
13th Jul 2026387 AMAQI
13th Jul 2026338 AMAQI
13th Jul 2026349 AMAQI
13th Jul 20263810 AMAQI
13th Jul 20264011 AMAQI
13th Jul 20264912 PMAQI
13th Jul 2026521 PMAQI
13th Jul 2026522 PMAQI
13th Jul 2026383 PMAQI
13th Jul 2026514 PMAQI
13th Jul 2026385 PMAQI
13th Jul 2026386 PMAQI
13th Jul 2026367 PMAQI
13th Jul 2026338 PMAQI
13th Jul 2026299 PMAQI
13th Jul 20263110 PMAQI
13th Jul 20263311 PMAQI
14th Jul 20262912 AMAQI
14th Jul 2026361 AMAQI
14th Jul 2026312 AMAQI
14th Jul 2026313 AMAQI
28°C27/31°C
14th Jul 2026254 AMAQI
14th Jul 2026275 AMAQI
14th Jul 2026256 AMAQI
14th Jul 2026277 AMAQI
14th Jul 2026258 AMAQI
14th Jul 2026299 AMAQI
14th Jul 20262710 AMAQI
14th Jul 20262911 AMAQI
14th Jul 20262712 PMAQI
14th Jul 2026271 PMAQI
14th Jul 2026272 PMAQI
14th Jul 2026293 PMAQI
14th Jul 2026294 PMAQI
14th Jul 2026275 PMAQI
14th Jul 2026336 PMAQI
14th Jul 2026257 PMAQI
14th Jul 2026318 PMAQI
14th Jul 2026299 PMAQI
14th Jul 20263110 PMAQI
14th Jul 20263811 PMAQI
15th Jul 20263712 AMAQI
15th Jul 2026361 AMAQI
15th Jul 2026312 AMAQI
15th Jul 2026303 AMAQI
30°C25/35°C
15th Jul 2026284 AMAQI
15th Jul 2026305 AMAQI
15th Jul 2026276 AMAQI
15th Jul 2026307 AMAQI
15th Jul 2026328 AMAQI
15th Jul 2026309 AMAQI
15th Jul 20263210 AMAQI
15th Jul 20262811 AMAQI
15th Jul 20262212 PMAQI
15th Jul 2026221 PMAQI
15th Jul 2026222 PMAQI
15th Jul 2026223 PMAQI
15th Jul 2026234 PMAQI
15th Jul 2026265 PMAQI
15th Jul 2026406 PMAQI
15th Jul 2026237 PMAQI
15th Jul 2026288 PMAQI
15th Jul 2026259 PMAQI
15th Jul 20263010 PMAQI
15th Jul 20262611 PMAQI
16th Jul 20265212 AMAQI
16th Jul 2026501 AMAQI
16th Jul 2026532 AMAQI
16th Jul 2026423 AMAQI
30°C26/34°C
16th Jul 2026504 AMAQI
16th Jul 2026715 AMAQI
16th Jul 2026706 AMAQI
16th Jul 2026637 AMAQI
16th Jul 2026548 AMAQI
16th Jul 2026509 AMAQI
16th Jul 20265610 AMAQI
16th Jul 20265711 AMAQI
16th Jul 20266612 PMAQI
16th Jul 2026601 PMAQI
16th Jul 2026512 PMAQI
16th Jul 2026423 PMAQI
16th Jul 2026564 PMAQI
16th Jul 2026495 PMAQI
16th Jul 2026446 PMAQI
16th Jul 2026427 PMAQI
16th Jul 2026608 PMAQI
16th Jul 2026509 PMAQI
16th Jul 20264610 PMAQI
16th Jul 20264811 PMAQI
17th Jul 20264812 AMAQI
17th Jul 2026561 AMAQI
17th Jul 2026522 AMAQI
17th Jul 2026463 AMAQI
31°C28/35°C
17th Jul 2026514 AMAQI
17th Jul 2026485 AMAQI
17th Jul 2026466 AMAQI
17th Jul 2026527 AMAQI
17th Jul 2026558 AMAQI
17th Jul 2026499 AMAQI
17th Jul 20265710 AMAQI
17th Jul 20266411 AMAQI
17th Jul 20265212 PMAQI
17th Jul 2026421 PMAQI
17th Jul 2026262 PMAQI
17th Jul 2026263 PMAQI
17th Jul 2026634 PMAQI
17th Jul 2026645 PMAQI
17th Jul 2026606 PMAQI
17th Jul 2026607 PMAQI
17th Jul 2026578 PMAQI
17th Jul 2026599 PMAQI
17th Jul 20266410 PMAQI
17th Jul 20265611 PMAQI
18th Jul 20265812 AMAQI
18th Jul 2026561 AMAQI
18th Jul 2026572 AMAQI
18th Jul 2026543 AMAQI
29°C27/32°C
18th Jul 2026534 AMAQI
18th Jul 2026535 AMAQI
18th Jul 2026546 AMAQI
18th Jul 2026517 AMAQI
18th Jul 2026508 AMAQI
18th Jul 2026409 AMAQI
18th Jul 20264410 AMAQI
18th Jul 20264411 AMAQI
18th Jul 20264412 PMAQI
18th Jul 2026331 PMAQI
18th Jul 2026292 PMAQI
18th Jul 2026313 PMAQI
18th Jul 2026314 PMAQI
18th Jul 2026335 PMAQI
18th Jul 2026336 PMAQI
18th Jul 2026337 PMAQI
18th Jul 2026298 PMAQI
18th Jul 2026299 PMAQI
18th Jul 20262710 PMAQI
18th Jul 20262511 PMAQI
19th Jul 20262712 AMAQI
19th Jul 2026231 AMAQI
19th Jul 2026232 AMAQI
19th Jul 2026253 AMAQI
28°C26/30°C
19th Jul 2026254 AMAQI
19th Jul 2026235 AMAQI
19th Jul 2026216 AMAQI
19th Jul 2026217 AMAQI
19th Jul 2026218 AMAQI
19th Jul 2026259 AMAQI
19th Jul 20261810 AMAQI
19th Jul 20261211 AMAQI
19th Jul 2026812 PMAQI
19th Jul 202681 PMAQI
19th Jul 2026122 PMAQI
19th Jul 2026163 PMAQI
19th Jul 2026214 PMAQI
19th Jul 2026175 PMAQI
19th Jul 2026146 PMAQI
19th Jul 2026147 PMAQI
19th Jul 2026198 PMAQI
19th Jul 2026179 PMAQI
19th Jul 20261910 PMAQI
19th Jul 20262311 PMAQI
20th Jul 20262112 AMAQI
20th Jul 2026251 AMAQI
20th Jul 2026252 AMAQI
20th Jul 2026253 AMAQI
28°C26/31°C
20th Jul 2026254 AMAQI
20th Jul 2026255 AMAQI
20th Jul 2026256 AMAQI
20th Jul 2026257 AMAQI
20th Jul 2026298 AMAQI
20th Jul 2026299 AMAQI
20th Jul 20262510 AMAQI
20th Jul 20263611 AMAQI
20th Jul 20262312 PMAQI
20th Jul 2026511 PMAQI
20th Jul 2026402 PMAQI
20th Jul 2026363 PMAQI
20th Jul 2026314 PMAQI
20th Jul 2026365 PMAQI
20th Jul 2026336 PMAQI
20th Jul 2026347 PMAQI
20th Jul 2026298 PMAQI
20th Jul 2026389 PMAQI
20th Jul 20262710 PMAQI
20th Jul 20262511 PMAQI
21st Jul 20263212 AMAQI
21st Jul 2026311 AMAQI
21st Jul 2026272 AMAQI
21st Jul 2026233 AMAQI
29°C26/32°C
21st Jul 2026274 AMAQI
21st Jul 2026255 AMAQI
21st Jul 2026336 AMAQI
21st Jul 2026317 AMAQI
21st Jul 2026368 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20264210 AMAQI
21st Jul 20264011 AMAQI
21st Jul 2026601 PMAQI
21st Jul 2026682 PMAQI
21st Jul 2026683 PMAQI
21st Jul 2026654 PMAQI
21st Jul 2026715 PMAQI
21st Jul 2026706 PMAQI
21st Jul 2026987 PMAQI
21st Jul 2026788 PMAQI
21st Jul 2026699 PMAQI
21st Jul 20266810 PMAQI
21st Jul 20266711 PMAQI
22nd Jul 20266312 AMAQI
22nd Jul 2026651 AMAQI
22nd Jul 2026642 AMAQI
22nd Jul 2026623 AMAQI
30°C27/34°C
22nd Jul 2026654 AMAQI
22nd Jul 2026575 AMAQI
22nd Jul 2026606 AMAQI
22nd Jul 2026637 AMAQI
22nd Jul 2026548 AMAQI
22nd Jul 2026539 AMAQI
22nd Jul 20266710 AMAQI
22nd Jul 20268811 AMAQI
22nd Jul 20269412 PMAQI
22nd Jul 2026961 PMAQI
22nd Jul 20261042 PMAQI
22nd Jul 20261053 PMAQI
22nd Jul 20261154 PMAQI
22nd Jul 20261025 PMAQI
22nd Jul 2026886 PMAQI
22nd Jul 2026867 PMAQI
22nd Jul 2026898 PMAQI
22nd Jul 2026819 PMAQI
22nd Jul 20267210 PMAQI
22nd Jul 20267411 PMAQI
23rd Jul 20268312 AMAQI
23rd Jul 2026851 AMAQI
23rd Jul 2026822 AMAQI
23rd Jul 2026893 AMAQI
31°C27/36°C
23rd Jul 2026804 AMAQI
23rd Jul 2026595 AMAQI
23rd Jul 2026586 AMAQI
23rd Jul 2026557 AMAQI
23rd Jul 2026568 AMAQI
23rd Jul 2026559 AMAQI
23rd Jul 20264710 AMAQI
23rd Jul 20264411 AMAQI
23rd Jul 20266512 PMAQI
23rd Jul 2026661 PMAQI
23rd Jul 2026642 PMAQI
23rd Jul 2026563 PMAQI
23rd Jul 2026634 PMAQI
23rd Jul 2026675 PMAQI
23rd Jul 2026676 PMAQI
23rd Jul 2026857 PMAQI
23rd Jul 2026928 PMAQI
23rd Jul 20261009 PMAQI
23rd Jul 20269610 PMAQI
23rd Jul 20269711 PMAQI
24th Jul 20269912 AMAQI
24th Jul 2026881 AMAQI
24th Jul 20261092 AMAQI
24th Jul 2026623 AMAQI
32°C28/38°C
24th Jul 20261084 AMAQI
24th Jul 2026965 AMAQI
24th Jul 20261106 AMAQI
24th Jul 2026977 AMAQI
24th Jul 2026978 AMAQI
24th Jul 2026889 AMAQI
24th Jul 20268510 AMAQI
24th Jul 20268911 AMAQI
24th Jul 20269612 PMAQI
24th Jul 2026901 PMAQI
24th Jul 20261002 PMAQI
24th Jul 2026873 PMAQI
24th Jul 2026944 PMAQI
24th Jul 2026855 PMAQI
24th Jul 2026976 PMAQI
24th Jul 2026927 PMAQI
24th Jul 2026898 PMAQI
24th Jul 2026929 PMAQI
24th Jul 20268510 PMAQI
24th Jul 20268411 PMAQI
25th Jul 20268812 AMAQI
25th Jul 2026821 AMAQI
25th Jul 2026872 AMAQI
25th Jul 2026763 AMAQI
30°C28/34°C
25th Jul 2026864 AMAQI
25th Jul 2026795 AMAQI
25th Jul 2026886 AMAQI
25th Jul 2026797 AMAQI
25th Jul 2026728 AMAQI
25th Jul 2026589 AMAQI
25th Jul 20265510 AMAQI
25th Jul 20265711 AMAQI
25th Jul 20265012 PMAQI
25th Jul 2026521 PMAQI
25th Jul 2026572 PMAQI
25th Jul 2026533 PMAQI
25th Jul 2026544 PMAQI
25th Jul 2026565 PMAQI
25th Jul 2026516 PMAQI
25th Jul 2026487 PMAQI
25th Jul 2026528 PMAQI
25th Jul 2026569 PMAQI
25th Jul 20265510 PMAQI
25th Jul 20265011 PMAQI
26th Jul 20266312 AMAQI
26th Jul 2026581 AMAQI
26th Jul 2026582 AMAQI
26th Jul 2026683 AMAQI
31°C28/35°C
26th Jul 2026734 AMAQI
26th Jul 2026755 AMAQI
26th Jul 2026726 AMAQI
26th Jul 2026667 AMAQI
26th Jul 2026608 AMAQI
26th Jul 2026539 AMAQI
26th Jul 20266210 AMAQI
26th Jul 20265711 AMAQI
26th Jul 20265512 PMAQI
26th Jul 2026511 PMAQI
26th Jul 2026482 PMAQI
26th Jul 2026543 PMAQI
26th Jul 2026534 PMAQI
26th Jul 2026465 PMAQI
26th Jul 2026546 PMAQI
26th Jul 2026467 PMAQI
26th Jul 2026468 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20263810 PMAQI
26th Jul 20263311 PMAQI
27th Jul 20262712 AMAQI
27th Jul 2026291 AMAQI
27th Jul 2026292 AMAQI
27th Jul 2026113 AMAQI
29°C27/32°C
27th Jul 2026314 AMAQI
27th Jul 2026275 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026278 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20262910 AMAQI
27th Jul 20262511 AMAQI
27th Jul 20263112 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026362 PMAQI
27th Jul 2026423 PMAQI
27th Jul 2026384 PMAQI
27th Jul 2026365 PMAQI
27th Jul 2026296 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026318 PMAQI
27th Jul 2026369 PMAQI
27th Jul 20263310 PMAQI
27th Jul 20262911 PMAQI
28th Jul 20262112 AMAQI
28th Jul 2026271 AMAQI
28th Jul 2026192 AMAQI
28th Jul 2026183 AMAQI
29°C26/32°C
28th Jul 2026194 AMAQI
28th Jul 2026215 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026237 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026239 AMAQI
28th Jul 20262310 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20263612 PMAQI
28th Jul 2026461 PMAQI
28th Jul 2026292 PMAQI
28th Jul 2026573 PMAQI
28th Jul 2026604 PMAQI
28th Jul 2026605 PMAQI
28th Jul 2026586 PMAQI
28th Jul 2026387 PMAQI
28th Jul 2026218 PMAQI
28th Jul 2026339 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20262112 AMAQI
29th Jul 2026231 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026253 AMAQI
28°C25/31°C
29th Jul 2026214 AMAQI
29th Jul 2026295 AMAQI
29th Jul 2026256 AMAQI
29th Jul 2026297 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026259 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20262911 AMAQI
29th Jul 20262312 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026342 PMAQI
29th Jul 2026383 PMAQI
29th Jul 2026384 PMAQI
29th Jul 2026315 PMAQI
29th Jul 2026366 PMAQI
29th Jul 2026387 PMAQI
29th Jul 2026338 PMAQI
29th Jul 2026349 PMAQI
29th Jul 20262510 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20263012 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026212 AMAQI
30th Jul 2026213 AMAQI
30°C26/34°C
30th Jul 2026214 AMAQI
30th Jul 2026235 AMAQI
30th Jul 2026256 AMAQI
30th Jul 2026297 AMAQI
30th Jul 2026298 AMAQI
30th Jul 2026299 AMAQI
30th Jul 20263610 AMAQI
30th Jul 20264411 AMAQI
30th Jul 20264912 PMAQI
30th Jul 2026581 PMAQI
30th Jul 2026642 PMAQI
30th Jul 2026573 PMAQI
30th Jul 2026564 PMAQI
30th Jul 2026625 PMAQI
30th Jul 2026536 PMAQI
30th Jul 2026537 PMAQI
30th Jul 2026468 PMAQI
30th Jul 2026389 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20263611 PMAQI
31st Jul 20263812 AMAQI
31st Jul 2026361 AMAQI
31st Jul 2026362 AMAQI
31st Jul 2026273 AMAQI
31°C27/36°C
31st Jul 2026274 AMAQI
31st Jul 2026295 AMAQI
31st Jul 2026296 AMAQI
31st Jul 2026297 AMAQI
31st Jul 2026348 AMAQI
31st Jul 2026369 AMAQI
31st Jul 20262110 AMAQI
31st Jul 20262711 AMAQI
31st Jul 20263112 PMAQI
31st Jul 2026381 PMAQI
31st Jul 2026522 PMAQI
31st Jul 2026563 PMAQI
31st Jul 2026424 PMAQI
31st Jul 2026385 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026568 PMAQI
31st Jul 2026429 PMAQI
31st Jul 20263110 PMAQI
31st Jul 20263111 PMAQI
1st Aug 20262912 AMAQI
1st Aug 2026291 AMAQI
1st Aug 2026292 AMAQI
1st Aug 2026313 AMAQI
31°C27/36°C
1st Aug 2026334 AMAQI
1st Aug 2026425 AMAQI
1st Aug 2026426 AMAQI
1st Aug 2026427 AMAQI
1st Aug 2026368 AMAQI
1st Aug 2026369 AMAQI
1st Aug 20264610 AMAQI
1st Aug 20264811 AMAQI
1st Aug 20264812 PMAQI
1st Aug 2026521 PMAQI
1st Aug 2026562 PMAQI
1st Aug 2026523 PMAQI
1st Aug 2026464 PMAQI
1st Aug 2026485 PMAQI
1st Aug 2026386 PMAQI
1st Aug 2026467 PMAQI
1st Aug 2026468 PMAQI
1st Aug 2026449 PMAQI
1st Aug 20262510 PMAQI
1st Aug 20262711 PMAQI
2nd Aug 20262712 AMAQI
2nd Aug 2026291 AMAQI
2nd Aug 2026462 AMAQI
2nd Aug 2026533 AMAQI
32°C28/36°C
2nd Aug 2026444 AMAQI
2nd Aug 2026445 AMAQI
2nd Aug 2026446 AMAQI
2nd Aug 2026427 AMAQI
2nd Aug 2026388 AMAQI
2nd Aug 2026579 AMAQI
2nd Aug 20263810 AMAQI
2nd Aug 20264011 AMAQI
2nd Aug 20265212 PMAQI
2nd Aug 2026531 PMAQI
2nd Aug 2026542 PMAQI
2nd Aug 2026553 PMAQI
2nd Aug 2026574 PMAQI
2nd Aug 2026585 PMAQI
2nd Aug 2026556 PMAQI
2nd Aug 2026537 PMAQI
2nd Aug 2026548 PMAQI
2nd Aug 2026609 PMAQI
2nd Aug 20265510 PMAQI
2nd Aug 20265711 PMAQI
3rd Aug 20265612 AMAQI
3rd Aug 2026531 AMAQI
3rd Aug 2026522 AMAQI
3rd Aug 2026513 AMAQI
31°C28/35°C
3rd Aug 2026514 AMAQI
3rd Aug 2026525 AMAQI
3rd Aug 2026486 AMAQI
3rd Aug 2026537 AMAQI
3rd Aug 2026508 AMAQI
3rd Aug 2026489 AMAQI
3rd Aug 20264810 AMAQI
3rd Aug 20264811 AMAQI
3rd Aug 20264212 PMAQI
3rd Aug 2026421 PMAQI
3rd Aug 2026362 PMAQI
3rd Aug 2026293 PMAQI
3rd Aug 2026294 PMAQI
3rd Aug 2026315 PMAQI
3rd Aug 2026296 PMAQI
3rd Aug 2026277 PMAQI
3rd Aug 2026278 PMAQI
3rd Aug 2026279 PMAQI
3rd Aug 20262710 PMAQI
3rd Aug 20262911 PMAQI
4th Aug 20262512 AMAQI
4th Aug 2026231 AMAQI
4th Aug 2026192 AMAQI
4th Aug 2026193 AMAQI
28°C26/31°C
4th Aug 2026194 AMAQI
4th Aug 2026215 AMAQI
4th Aug 2026176 AMAQI
4th Aug 2026217 AMAQI
4th Aug 2026258 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262310 AMAQI
4th Aug 20262311 AMAQI
4th Aug 20262512 PMAQI
4th Aug 2026211 PMAQI
4th Aug 2026292 PMAQI
4th Aug 2026333 PMAQI
4th Aug 2026364 PMAQI
4th Aug 2026445 PMAQI
4th Aug 2026366 PMAQI
4th Aug 2026407 PMAQI
4th Aug 2026338 PMAQI
4th Aug 2026339 PMAQI
4th Aug 20262910 PMAQI
4th Aug 20263611 PMAQI
5th Aug 20263312 AMAQI
5th Aug 2026331 AMAQI
5th Aug 2026332 AMAQI
5th Aug 2026293 AMAQI
26°C24/30°C
5th Aug 2026314 AMAQI
5th Aug 2026315 AMAQI
5th Aug 2026316 AMAQI
5th Aug 2026337 AMAQI
5th Aug 2026338 AMAQI
5th Aug 2026319 AMAQI
5th Aug 20263310 AMAQI
5th Aug 20263411 AMAQI
5th Aug 20263312 PMAQI
5th Aug 2026331 PMAQI
5th Aug 2026382 PMAQI
5th Aug 2026333 PMAQI
5th Aug 2026334 PMAQI
5th Aug 2026295 PMAQI
5th Aug 2026296 PMAQI
5th Aug 2026297 PMAQI
5th Aug 2026318 PMAQI
5th Aug 2026299 PMAQI
5th Aug 20263810 PMAQI
5th Aug 20263611 PMAQI
6th Aug 20263612 AMAQI
6th Aug 2026381 AMAQI
6th Aug 2026362 AMAQI
6th Aug 2026363 AMAQI
29°C24/33°C
6th Aug 2026384 AMAQI
4 AM6th Aug 2026385 AMAQI
6th Aug 2026406 AMAQI
6th Aug 2026337 AMAQI
6th Aug 2026338 AMAQI
6th Aug 2026369 AMAQI
6th Aug 20263110 AMAQI
6th Aug 20263311 AMAQI
11 AM6th Aug 20263112 PMAQI
6th Aug 2026331 PMAQI
6th Aug 2026272 PMAQI
6th Aug 2026273 PMAQI
6th Aug 2026274 PMAQI
6th Aug 2026255 PMAQI
6th Aug 2026276 PMAQI
6th Aug 2026257 PMAQI
7 PM6th Aug 2026278 PMAQI
6th Aug 2026299 PMAQI
6th Aug 20262910 PMAQI
6th Aug 20262711 PMAQI
11 PM3 AM
29°C26/33°C
Day time
Avg. Highest Time
4 PM - 7 PM
44AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
8 AM - 12 PM
38AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 7 PM (Avg. 44), while the lowest AQI was between 8 AM to 12 PM (Avg. 38).
Night time
Avg. Highest Time
8 PM - 10 PM
42AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM
37AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 10 PM (Avg. 42), while the lowest AQI was between 3 AM to 3 AM (Avg. 37).
2026 Days Vs Air Quality
Oiwacho, Toyohashi, Aichi, Japan
2026
79%
173
21%
45
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Good
173 DaysModerate
45 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 79%
Health Risk Level:
Low
In 2026, 79% of 218 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
Oiwacho, Toyohashi, 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
19AQI (US)
19AQI (US)
2nd January 2026
14AQI (US)
14AQI (US)
3rd January 2026
15AQI (US)
15AQI (US)
4th January 2026
23AQI (US)
23AQI (US)
5th January 2026
47AQI (US)
47AQI (US)
6th January 2026
14AQI (US)
14AQI (US)
7th January 2026
25AQI (US)
25AQI (US)
8th January 2026
38AQI (US)
38AQI (US)
9th January 2026
12AQI (US)
12AQI (US)
10th January 2026
26AQI (US)
26AQI (US)
11th January 2026
28AQI (US)
28AQI (US)
12th January 2026
23AQI (US)
23AQI (US)
13th January 2026
38AQI (US)
38AQI (US)
14th January 2026
25AQI (US)
25AQI (US)
15th January 2026
35AQI (US)
35AQI (US)
16th January 2026
58AQI (US)
58AQI (US)
17th January 2026
54AQI (US)
54AQI (US)
18th January 2026
52AQI (US)
52AQI (US)
19th January 2026
56AQI (US)
56AQI (US)
20th January 2026
29AQI (US)
29AQI (US)
21st January 2026
13AQI (US)
13AQI (US)
22nd January 2026
22AQI (US)
22AQI (US)
23rd January 2026
37AQI (US)
37AQI (US)
24th January 2026
50AQI (US)
50AQI (US)
25th January 2026
18AQI (US)
18AQI (US)
26th January 2026
12AQI (US)
12AQI (US)
27th January 2026
37AQI (US)
37AQI (US)
28th January 2026
30AQI (US)
30AQI (US)
29th January 2026
25AQI (US)
25AQI (US)
30th January 2026
36AQI (US)
36AQI (US)
31st January 2026
32AQI (US)
32AQI (US)
1st February 2026
34AQI (US)
34AQI (US)
2nd February 2026
43AQI (US)
43AQI (US)
3rd February 2026
31AQI (US)
31AQI (US)
4th February 2026
36AQI (US)
36AQI (US)
5th February 2026
57AQI (US)
57AQI (US)
6th February 2026
56AQI (US)
56AQI (US)
7th February 2026
15AQI (US)
15AQI (US)
8th February 2026
16AQI (US)
16AQI (US)
9th February 2026
34AQI (US)
34AQI (US)
10th February 2026
37AQI (US)
37AQI (US)
11th February 2026
46AQI (US)
46AQI (US)
12th February 2026
45AQI (US)
45AQI (US)
13th February 2026
56AQI (US)
56AQI (US)
14th February 2026
64AQI (US)
64AQI (US)
15th February 2026
66AQI (US)
66AQI (US)
16th February 2026
62AQI (US)
62AQI (US)
17th February 2026
23AQI (US)
23AQI (US)
18th February 2026
30AQI (US)
30AQI (US)
19th February 2026
31AQI (US)
31AQI (US)
20th February 2026
34AQI (US)
34AQI (US)
21st February 2026
50AQI (US)
50AQI (US)
22nd February 2026
48AQI (US)
48AQI (US)
23rd February 2026
53AQI (US)
53AQI (US)
24th February 2026
54AQI (US)
54AQI (US)
25th February 2026
20AQI (US)
20AQI (US)
26th February 2026
25AQI (US)
25AQI (US)
27th February 2026
41AQI (US)
41AQI (US)
28th February 2026
28AQI (US)
28AQI (US)
1st March 2026
16AQI (US)
16AQI (US)
2nd March 2026
55AQI (US)
55AQI (US)
3rd March 2026
37AQI (US)
37AQI (US)
4th March 2026
18AQI (US)
18AQI (US)
5th March 2026
51AQI (US)
51AQI (US)
6th March 2026
52AQI (US)
52AQI (US)
7th March 2026
47AQI (US)
47AQI (US)
8th March 2026
42AQI (US)
42AQI (US)
9th March 2026
48AQI (US)
48AQI (US)
10th March 2026
57AQI (US)
57AQI (US)
11th March 2026
53AQI (US)
53AQI (US)
12th March 2026
61AQI (US)
61AQI (US)
13th March 2026
41AQI (US)
41AQI (US)
14th March 2026
45AQI (US)
45AQI (US)
15th March 2026
58AQI (US)
58AQI (US)
16th March 2026
54AQI (US)
54AQI (US)
17th March 2026
51AQI (US)
51AQI (US)
18th March 2026
54AQI (US)
54AQI (US)
19th March 2026
33AQI (US)
33AQI (US)
20th March 2026
28AQI (US)
28AQI (US)
21st March 2026
43AQI (US)
43AQI (US)
22nd March 2026
44AQI (US)
44AQI (US)
23rd March 2026
36AQI (US)
36AQI (US)
24th March 2026
55AQI (US)
55AQI (US)
25th March 2026
54AQI (US)
54AQI (US)
26th March 2026
14AQI (US)
14AQI (US)
27th March 2026
20AQI (US)
20AQI (US)
28th March 2026
51AQI (US)
51AQI (US)
29th March 2026
61AQI (US)
61AQI (US)
30th March 2026
46AQI (US)
46AQI (US)
31st March 2026
24AQI (US)
24AQI (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
43AQI (US)
43AQI (US)
5th April 2026
31AQI (US)
31AQI (US)
6th April 2026
25AQI (US)
25AQI (US)
7th April 2026
36AQI (US)
36AQI (US)
8th April 2026
27AQI (US)
27AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
47AQI (US)
47AQI (US)
11th April 2026
33AQI (US)
33AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
36AQI (US)
36AQI (US)
14th April 2026
51AQI (US)
51AQI (US)
15th April 2026
32AQI (US)
32AQI (US)
16th April 2026
29AQI (US)
29AQI (US)
17th April 2026
37AQI (US)
37AQI (US)
18th April 2026
28AQI (US)
28AQI (US)
19th April 2026
31AQI (US)
31AQI (US)
20th April 2026
36AQI (US)
36AQI (US)
21st April 2026
39AQI (US)
39AQI (US)
22nd April 2026
45AQI (US)
45AQI (US)
23rd April 2026
36AQI (US)
36AQI (US)
24th April 2026
28AQI (US)
28AQI (US)
25th April 2026
45AQI (US)
45AQI (US)
26th April 2026
50AQI (US)
50AQI (US)
27th April 2026
50AQI (US)
50AQI (US)
28th April 2026
46AQI (US)
46AQI (US)
29th April 2026
37AQI (US)
37AQI (US)
30th April 2026
21AQI (US)
21AQI (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
24AQI (US)
24AQI (US)
5th May 2026
20AQI (US)
20AQI (US)
6th May 2026
28AQI (US)
28AQI (US)
7th May 2026
30AQI (US)
30AQI (US)
8th May 2026
26AQI (US)
26AQI (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
30AQI (US)
30AQI (US)
13th May 2026
39AQI (US)
39AQI (US)
14th May 2026
31AQI (US)
31AQI (US)
15th May 2026
36AQI (US)
36AQI (US)
16th May 2026
85AQI (US)
85AQI (US)
17th May 2026
68AQI (US)
68AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
49AQI (US)
49AQI (US)
20th May 2026
61AQI (US)
61AQI (US)
21st May 2026
60AQI (US)
60AQI (US)
22nd May 2026
61AQI (US)
61AQI (US)
23rd May 2026
55AQI (US)
55AQI (US)
24th May 2026
59AQI (US)
59AQI (US)
25th May 2026
48AQI (US)
48AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
25AQI (US)
25AQI (US)
28th May 2026
25AQI (US)
25AQI (US)
29th May 2026
24AQI (US)
24AQI (US)
30th May 2026
24AQI (US)
24AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
28AQI (US)
28AQI (US)
2nd June 2026
19AQI (US)
19AQI (US)
3rd June 2026
22AQI (US)
22AQI (US)
4th June 2026
15AQI (US)
15AQI (US)
5th June 2026
23AQI (US)
23AQI (US)
6th June 2026
24AQI (US)
24AQI (US)
7th June 2026
21AQI (US)
21AQI (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
24AQI (US)
24AQI (US)
13th June 2026
27AQI (US)
27AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
23AQI (US)
23AQI (US)
16th June 2026
20AQI (US)
20AQI (US)
17th June 2026
23AQI (US)
23AQI (US)
18th June 2026
25AQI (US)
25AQI (US)
19th June 2026
27AQI (US)
27AQI (US)
20th June 2026
21AQI (US)
21AQI (US)
21st June 2026
21AQI (US)
21AQI (US)
22nd June 2026
18AQI (US)
18AQI (US)
23rd June 2026
22AQI (US)
22AQI (US)
24th June 2026
22AQI (US)
22AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
28AQI (US)
28AQI (US)
27th June 2026
21AQI (US)
21AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
26AQI (US)
26AQI (US)
30th June 2026
53AQI (US)
53AQI (US)
1st July 2026
28AQI (US)
28AQI (US)
2nd July 2026
23AQI (US)
23AQI (US)
3rd July 2026
23AQI (US)
23AQI (US)
4th July 2026
25AQI (US)
25AQI (US)
5th July 2026
21AQI (US)
21AQI (US)
6th July 2026
21AQI (US)
21AQI (US)
7th July 2026
25AQI (US)
25AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
25AQI (US)
25AQI (US)
10th July 2026
26AQI (US)
26AQI (US)
11th July 2026
24AQI (US)
24AQI (US)
12th July 2026
30AQI (US)
30AQI (US)
13th July 2026
38AQI (US)
38AQI (US)
14th July 2026
29AQI (US)
29AQI (US)
15th July 2026
28AQI (US)
28AQI (US)
16th July 2026
53AQI (US)
53AQI (US)
17th July 2026
52AQI (US)
52AQI (US)
18th July 2026
41AQI (US)
41AQI (US)
19th July 2026
19AQI (US)
19AQI (US)
20th July 2026
30AQI (US)
30AQI (US)
21st July 2026
51AQI (US)
51AQI (US)
22nd July 2026
78AQI (US)
78AQI (US)
23rd July 2026
71AQI (US)
71AQI (US)
24th July 2026
92AQI (US)
92AQI (US)
25th July 2026
64AQI (US)
64AQI (US)
26th July 2026
55AQI (US)
55AQI (US)
27th July 2026
30AQI (US)
30AQI (US)
28th July 2026
32AQI (US)
32AQI (US)
29th July 2026
28AQI (US)
28AQI (US)
30th July 2026
39AQI (US)
39AQI (US)
31st July 2026
36AQI (US)
36AQI (US)
1st August 2026
40AQI (US)
40AQI (US)
2nd August 2026
49AQI (US)
49AQI (US)
3rd August 2026
41AQI (US)
41AQI (US)
4th August 2026
27AQI (US)
27AQI (US)
5th August 2026
32AQI (US)
32AQI (US)
6th August 2026
32AQI (US)
32AQI (US)
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
30AQI (US)
41AQI (US)
44AQI (US)
36AQI (US)
39AQI (US)
24AQI (US)
37AQI (US)
37AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202636AQI (US)
27
4
20
8
17
14
29
1
22
9
29
1
23
8
6
173
45
Highest AQI (US) recorded in
March44AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202535AQI (US)
31
28
28
3
30
31
30
21
10
21
10
29
1
25
6
24
6
26
5
324
41
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202431AQI (US)
31
29
29
2
29
1
30
1
30
30
1
30
1
30
31
29
1
31
359
7
Highest AQI (US) recorded in
April38AQI (US)
Lowest AQI (US) recorded in
February24AQI (US)
202329AQI (US)
30
28
31
30
31
30
31
31
30
31
27
31
361
Highest AQI (US) recorded in
April37AQI (US)
Lowest AQI (US) recorded in
August21AQI (US)
202230AQI (US)
30
21
31
17
29
2
30
21
1
27
1
31
28
31
297
3
Highest AQI (US) recorded in
May39AQI (US)
Lowest AQI (US) recorded in
October24AQI (US)
202124AQI (US)
30
28
29
2
30
29
2
25
5
30
1
31
30
31
30
29
352
10
Highest AQI (US) recorded in
June39AQI (US)
Lowest AQI (US) recorded in
January10AQI (US)
202014AQI (US)
13
21
18
30
30
1
30
1
19
31
27
31
250
2
Highest AQI (US) recorded in
July22AQI (US)
Lowest AQI (US) recorded in
September8AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2026(Avg.)
36AQI (US)Least Polluted Year Recorded
2020(Avg.)
14AQI (US)Oiwacho's annual 2026 AQI (US) (36) shows an average percentage change of 45.04% (worsened AQI (US)) compared to previous years: 2020 (14), 2021 (24), 2022 (30), 2023 (29), 2024 (31), 2025 (35).
