Horin, Hayashima, Okayama, 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
Horin, Hayashima, Okayama, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
21st Aug 2023
97AQILowest AQI recorded on
18th Aug 2021
12AQISame Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 45 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Horin, Hayashima, Okayama, Japan
AQI
Day
Night
.
5 AM11th Aug 2025
7 PM
4 AM12th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
7AM11th Aug
48AQI
Avg. Lowest Time
10AM11th Aug
16AQI
In the last 24 hours,
Horin's AQI reached its highest point of 48 at 7 AM during the Night, while the lowest point, 16, was recorded at 10 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Horin, Hayashima, Okayama, Japan
JulAug
13th - 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 - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
13th Jul 2025655 AMAQI
13th Jul 2025656 AMAQI
13th Jul 2025647 AMAQI
13th Jul 2025658 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20252710 AMAQI
13th Jul 20252611 AMAQI
13th Jul 20252712 PMAQI
13th Jul 2025341 PMAQI
13th Jul 2025362 PMAQI
13th Jul 2025373 PMAQI
13th Jul 2025344 PMAQI
13th Jul 2025345 PMAQI
13th Jul 2025346 PMAQI
13th Jul 2025387 PMAQI
13th Jul 2025488 PMAQI
13th Jul 2025569 PMAQI
13th Jul 20255510 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255512 AMAQI
14th Jul 2025601 AMAQI
14th Jul 2025652 AMAQI
14th Jul 2025653 AMAQI
14th Jul 2025634 AMAQI
28°C25/32°C
14th Jul 2025615 AMAQI
14th Jul 2025606 AMAQI
14th Jul 2025607 AMAQI
14th Jul 2025608 AMAQI
14th Jul 2025309 AMAQI
14th Jul 20251910 AMAQI
14th Jul 20251711 AMAQI
14th Jul 20251812 PMAQI
14th Jul 2025231 PMAQI
14th Jul 2025222 PMAQI
14th Jul 2025223 PMAQI
14th Jul 2025194 PMAQI
14th Jul 2025235 PMAQI
14th Jul 2025236 PMAQI
14th Jul 2025237 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255310 PMAQI
14th Jul 20255311 PMAQI
15th Jul 20255212 AMAQI
15th Jul 2025561 AMAQI
15th Jul 2025602 AMAQI
15th Jul 2025613 AMAQI
15th Jul 2025594 AMAQI
25°C23/27°C
15th Jul 2025565 AMAQI
15th Jul 2025576 AMAQI
15th Jul 2025577 AMAQI
15th Jul 2025578 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20252910 AMAQI
15th Jul 20253511 AMAQI
15th Jul 20253612 PMAQI
15th Jul 2025381 PMAQI
15th Jul 2025432 PMAQI
15th Jul 2025413 PMAQI
15th Jul 2025384 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025446 PMAQI
15th Jul 2025477 PMAQI
15th Jul 2025528 PMAQI
15th Jul 2025579 PMAQI
15th Jul 20255810 PMAQI
15th Jul 20255611 PMAQI
16th Jul 20255612 AMAQI
16th Jul 2025571 AMAQI
16th Jul 2025562 AMAQI
16th Jul 2025573 AMAQI
16th Jul 2025564 AMAQI
26°C22/31°C
16th Jul 2025555 AMAQI
16th Jul 2025556 AMAQI
16th Jul 2025557 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025599 AMAQI
16th Jul 20256110 AMAQI
16th Jul 20256011 AMAQI
16th Jul 20256012 PMAQI
16th Jul 2025601 PMAQI
16th Jul 2025582 PMAQI
16th Jul 2025623 PMAQI
16th Jul 2025634 PMAQI
16th Jul 2025645 PMAQI
16th Jul 2025676 PMAQI
16th Jul 2025637 PMAQI
16th Jul 2025618 PMAQI
16th Jul 2025579 PMAQI
16th Jul 20255710 PMAQI
16th Jul 20255711 PMAQI
17th Jul 20255612 AMAQI
17th Jul 2025561 AMAQI
17th Jul 2025562 AMAQI
17th Jul 2025563 AMAQI
17th Jul 2025564 AMAQI
28°C24/33°C
17th Jul 2025565 AMAQI
17th Jul 2025566 AMAQI
17th Jul 2025567 AMAQI
17th Jul 2025568 AMAQI
17th Jul 2025349 AMAQI
17th Jul 20252610 AMAQI
17th Jul 20252511 AMAQI
17th Jul 20252312 PMAQI
17th Jul 2025241 PMAQI
17th Jul 2025222 PMAQI
17th Jul 2025203 PMAQI
17th Jul 2025184 PMAQI
17th Jul 2025185 PMAQI
17th Jul 2025196 PMAQI
17th Jul 2025207 PMAQI
17th Jul 2025278 PMAQI
17th Jul 2025439 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254311 PMAQI
18th Jul 20254212 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025562 AMAQI
18th Jul 2025563 AMAQI
18th Jul 2025554 AMAQI
26°C24/29°C
18th Jul 2025535 AMAQI
18th Jul 2025536 AMAQI
18th Jul 2025537 AMAQI
18th Jul 2025538 AMAQI
18th Jul 2025259 AMAQI
18th Jul 20251810 AMAQI
18th Jul 20252311 AMAQI
18th Jul 20252412 PMAQI
18th Jul 2025241 PMAQI
18th Jul 2025252 PMAQI
18th Jul 2025263 PMAQI
18th Jul 2025284 PMAQI
18th Jul 2025325 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025327 PMAQI
18th Jul 2025388 PMAQI
18th Jul 2025449 PMAQI
18th Jul 20254310 PMAQI
18th Jul 20254411 PMAQI
19th Jul 20254312 AMAQI
19th Jul 2025461 AMAQI
19th Jul 2025532 AMAQI
19th Jul 2025533 AMAQI
19th Jul 2025524 AMAQI
26°C24/30°C
19th Jul 2025495 AMAQI
19th Jul 2025486 AMAQI
19th Jul 2025487 AMAQI
19th Jul 2025488 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20251610 AMAQI
19th Jul 20251711 AMAQI
19th Jul 20251812 PMAQI
19th Jul 2025221 PMAQI
19th Jul 2025202 PMAQI
19th Jul 2025203 PMAQI
19th Jul 2025214 PMAQI
19th Jul 2025245 PMAQI
19th Jul 2025256 PMAQI
19th Jul 2025247 PMAQI
19th Jul 2025328 PMAQI
19th Jul 2025409 PMAQI
19th Jul 20253810 PMAQI
19th Jul 20254011 PMAQI
20th Jul 20253812 AMAQI
20th Jul 2025431 AMAQI
20th Jul 2025502 AMAQI
20th Jul 2025503 AMAQI
20th Jul 2025474 AMAQI
27°C24/31°C
20th Jul 2025455 AMAQI
20th Jul 2025446 AMAQI
20th Jul 2025447 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025339 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20251811 AMAQI
20th Jul 20252012 PMAQI
20th Jul 2025201 PMAQI
20th Jul 2025212 PMAQI
20th Jul 2025243 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025215 PMAQI
20th Jul 2025206 PMAQI
20th Jul 2025207 PMAQI
20th Jul 2025258 PMAQI
20th Jul 2025359 PMAQI
20th Jul 20253510 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025351 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025453 AMAQI
21st Jul 2025434 AMAQI
28°C24/32°C
21st Jul 2025405 AMAQI
21st Jul 2025416 AMAQI
21st Jul 2025417 AMAQI
21st Jul 2025418 AMAQI
21st Jul 2025239 AMAQI
21st Jul 20252010 AMAQI
21st Jul 20252311 AMAQI
21st Jul 20252212 PMAQI
21st Jul 2025211 PMAQI
21st Jul 2025202 PMAQI
21st Jul 2025213 PMAQI
21st Jul 2025214 PMAQI
21st Jul 2025205 PMAQI
21st Jul 2025206 PMAQI
21st Jul 2025227 PMAQI
21st Jul 2025268 PMAQI
21st Jul 2025339 PMAQI
21st Jul 20253610 PMAQI
21st Jul 20253411 PMAQI
22nd Jul 20253412 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025403 AMAQI
22nd Jul 2025384 AMAQI
28°C25/32°C
22nd Jul 2025365 AMAQI
22nd Jul 2025376 AMAQI
22nd Jul 2025387 AMAQI
22nd Jul 2025378 AMAQI
22nd Jul 2025239 AMAQI
22nd Jul 20251810 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20252612 PMAQI
22nd Jul 2025461 PMAQI
22nd Jul 2025632 PMAQI
22nd Jul 2025653 PMAQI
22nd Jul 2025644 PMAQI
22nd Jul 2025635 PMAQI
22nd Jul 2025636 PMAQI
22nd Jul 2025647 PMAQI
22nd Jul 2025588 PMAQI
22nd Jul 2025509 PMAQI
22nd Jul 20254510 PMAQI
22nd Jul 20254311 PMAQI
23rd Jul 20254212 AMAQI
23rd Jul 2025401 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI
23rd Jul 2025384 AMAQI
28°C25/32°C
23rd Jul 2025395 AMAQI
23rd Jul 2025396 AMAQI
23rd Jul 2025397 AMAQI
23rd Jul 2025398 AMAQI
23rd Jul 2025299 AMAQI
23rd Jul 20252410 AMAQI
23rd Jul 20252311 AMAQI
23rd Jul 20252812 PMAQI
23rd Jul 2025361 PMAQI
23rd Jul 2025442 PMAQI
23rd Jul 2025423 PMAQI
23rd Jul 2025444 PMAQI
23rd Jul 2025465 PMAQI
23rd Jul 2025406 PMAQI
23rd Jul 2025387 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025399 PMAQI
23rd Jul 20253810 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20253912 AMAQI
24th Jul 2025391 AMAQI
24th Jul 2025392 AMAQI
24th Jul 2025403 AMAQI
24th Jul 2025404 AMAQI
28°C25/32°C
24th Jul 2025385 AMAQI
24th Jul 2025386 AMAQI
24th Jul 2025387 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025269 AMAQI
24th Jul 20252010 AMAQI
24th Jul 20252611 AMAQI
24th Jul 20253012 PMAQI
24th Jul 2025381 PMAQI
24th Jul 2025492 PMAQI
24th Jul 2025473 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025285 PMAQI
24th Jul 2025286 PMAQI
24th Jul 2025277 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025339 PMAQI
24th Jul 20253310 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20252712 AMAQI
25th Jul 2025341 AMAQI
25th Jul 2025392 AMAQI
25th Jul 2025383 AMAQI
25th Jul 2025394 AMAQI
29°C25/33°C
25th Jul 2025385 AMAQI
25th Jul 2025386 AMAQI
25th Jul 2025387 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025219 AMAQI
25th Jul 20251610 AMAQI
25th Jul 20251611 AMAQI
25th Jul 20251912 PMAQI
25th Jul 2025201 PMAQI
25th Jul 2025202 PMAQI
25th Jul 2025183 PMAQI
25th Jul 2025184 PMAQI
25th Jul 2025185 PMAQI
25th Jul 2025176 PMAQI
25th Jul 2025167 PMAQI
25th Jul 2025218 PMAQI
25th Jul 2025289 PMAQI
25th Jul 20252810 PMAQI
25th Jul 20252811 PMAQI
26th Jul 20252812 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025362 AMAQI
26th Jul 2025373 AMAQI
26th Jul 2025364 AMAQI
29°C25/33°C
26th Jul 2025345 AMAQI
26th Jul 2025336 AMAQI
26th Jul 2025337 AMAQI
26th Jul 2025328 AMAQI
26th Jul 2025199 AMAQI
26th Jul 20251410 AMAQI
26th Jul 20251611 AMAQI
26th Jul 20251812 PMAQI
26th Jul 2025201 PMAQI
26th Jul 2025202 PMAQI
26th Jul 2025223 PMAQI
26th Jul 2025234 PMAQI
26th Jul 2025225 PMAQI
26th Jul 2025216 PMAQI
26th Jul 2025227 PMAQI
26th Jul 2025278 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252910 PMAQI
26th Jul 20252811 PMAQI
27th Jul 20252812 AMAQI
27th Jul 2025301 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025333 AMAQI
27th Jul 2025324 AMAQI
29°C26/33°C
27th Jul 2025305 AMAQI
27th Jul 2025306 AMAQI
27th Jul 2025307 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025229 AMAQI
27th Jul 20251510 AMAQI
27th Jul 20251711 AMAQI
27th Jul 20251912 PMAQI
27th Jul 2025191 PMAQI
27th Jul 2025182 PMAQI
27th Jul 2025183 PMAQI
27th Jul 2025194 PMAQI
27th Jul 2025225 PMAQI
27th Jul 2025246 PMAQI
27th Jul 2025247 PMAQI
27th Jul 2025248 PMAQI
27th Jul 2025279 PMAQI
27th Jul 20252710 PMAQI
27th Jul 20252711 PMAQI
28th Jul 20252712 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025302 AMAQI
28th Jul 2025303 AMAQI
28th Jul 2025294 AMAQI
29°C25/33°C
28th Jul 2025285 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025199 AMAQI
28th Jul 20252010 AMAQI
28th Jul 20252211 AMAQI
28th Jul 20252412 PMAQI
28th Jul 2025261 PMAQI
28th Jul 2025262 PMAQI
28th Jul 2025273 PMAQI
28th Jul 2025264 PMAQI
28th Jul 2025275 PMAQI
28th Jul 2025236 PMAQI
28th Jul 2025227 PMAQI
28th Jul 2025248 PMAQI
28th Jul 2025289 PMAQI
28th Jul 20252710 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252512 AMAQI
29th Jul 2025261 AMAQI
29th Jul 2025282 AMAQI
29th Jul 2025283 AMAQI
29th Jul 2025284 AMAQI
29°C24/33°C
29th Jul 2025275 AMAQI
29th Jul 2025276 AMAQI
29th Jul 2025287 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025249 AMAQI
29th Jul 20252210 AMAQI
29th Jul 20252311 AMAQI
29th Jul 20252812 PMAQI
29th Jul 2025341 PMAQI
29th Jul 2025382 PMAQI
29th Jul 2025423 PMAQI
29th Jul 2025444 PMAQI
29th Jul 2025455 PMAQI
29th Jul 2025496 PMAQI
29th Jul 2025547 PMAQI
29th Jul 2025508 PMAQI
29th Jul 2025449 PMAQI
29th Jul 20255110 PMAQI
29th Jul 20254811 PMAQI
30th Jul 20254812 AMAQI
30th Jul 2025391 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025283 AMAQI
30th Jul 2025284 AMAQI
29°C25/34°C
30th Jul 2025295 AMAQI
30th Jul 2025296 AMAQI
30th Jul 2025297 AMAQI
30th Jul 2025288 AMAQI
30th Jul 2025309 AMAQI
30th Jul 20253010 AMAQI
30th Jul 20253011 AMAQI
30th Jul 20253012 PMAQI
30th Jul 2025361 PMAQI
30th Jul 2025442 PMAQI
30th Jul 2025513 PMAQI
30th Jul 2025524 PMAQI
30th Jul 2025545 PMAQI
30th Jul 2025576 PMAQI
30th Jul 2025607 PMAQI
30th Jul 2025588 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20255210 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20254812 AMAQI
31st Jul 2025381 AMAQI
31st Jul 2025322 AMAQI
31st Jul 2025323 AMAQI
31st Jul 2025324 AMAQI
29°C26/34°C
31st Jul 2025325 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025327 AMAQI
31st Jul 2025328 AMAQI
31st Jul 2025329 AMAQI
31st Jul 20253210 AMAQI
31st Jul 20254511 AMAQI
31st Jul 20255612 PMAQI
31st Jul 2025661 PMAQI
31st Jul 2025742 PMAQI
31st Jul 2025753 PMAQI
31st Jul 2025804 PMAQI
31st Jul 2025785 PMAQI
31st Jul 2025706 PMAQI
31st Jul 2025687 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025479 PMAQI
31st Jul 20254410 PMAQI
31st Jul 20253811 PMAQI
1st Aug 20253312 AMAQI
1st Aug 2025311 AMAQI
1st Aug 2025312 AMAQI
1st Aug 2025323 AMAQI
1st Aug 2025324 AMAQI
29°C26/33°C
1st Aug 2025355 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025387 AMAQI
1st Aug 2025388 AMAQI
1st Aug 2025469 AMAQI
1st Aug 20254410 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20255112 PMAQI
1st Aug 2025501 PMAQI
1st Aug 2025562 PMAQI
1st Aug 2025613 PMAQI
1st Aug 2025584 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025626 PMAQI
1st Aug 2025577 PMAQI
1st Aug 2025488 PMAQI
1st Aug 2025479 PMAQI
1st Aug 20254010 PMAQI
1st Aug 20254111 PMAQI
2nd Aug 20253912 AMAQI
2nd Aug 2025381 AMAQI
2nd Aug 2025352 AMAQI
2nd Aug 2025353 AMAQI
2nd Aug 2025364 AMAQI
29°C26/33°C
2nd Aug 2025375 AMAQI
2nd Aug 2025386 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025449 AMAQI
2nd Aug 20254410 AMAQI
2nd Aug 20254911 AMAQI
2nd Aug 20254812 PMAQI
2nd Aug 2025561 PMAQI
2nd Aug 2025592 PMAQI
2nd Aug 2025593 PMAQI
2nd Aug 2025564 PMAQI
2nd Aug 2025565 PMAQI
2nd Aug 2025546 PMAQI
2nd Aug 2025497 PMAQI
2nd Aug 2025448 PMAQI
2nd Aug 2025419 PMAQI
2nd Aug 20254210 PMAQI
2nd Aug 20254211 PMAQI
3rd Aug 20254712 AMAQI
3rd Aug 2025411 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025414 AMAQI
30°C26/34°C
3rd Aug 2025445 AMAQI
3rd Aug 2025426 AMAQI
3rd Aug 2025427 AMAQI
3rd Aug 2025428 AMAQI
3rd Aug 2025469 AMAQI
3rd Aug 20254910 AMAQI
3rd Aug 20255211 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025501 PMAQI
3rd Aug 2025472 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025584 PMAQI
3rd Aug 2025485 PMAQI
3rd Aug 2025466 PMAQI
3rd Aug 2025437 PMAQI
3rd Aug 2025458 PMAQI
3rd Aug 2025499 PMAQI
3rd Aug 20255210 PMAQI
3rd Aug 20254611 PMAQI
4th Aug 20255112 AMAQI
4th Aug 2025421 AMAQI
4th Aug 2025422 AMAQI
4th Aug 2025423 AMAQI
4th Aug 2025444 AMAQI
29°C25/34°C
4th Aug 2025475 AMAQI
4th Aug 2025466 AMAQI
4th Aug 2025457 AMAQI
4th Aug 2025448 AMAQI
4th Aug 2025659 AMAQI
4th Aug 20257110 AMAQI
4th Aug 20259311 AMAQI
4th Aug 20258612 PMAQI
4th Aug 2025781 PMAQI
4th Aug 2025802 PMAQI
4th Aug 2025843 PMAQI
4th Aug 2025744 PMAQI
4th Aug 2025745 PMAQI
4th Aug 2025706 PMAQI
4th Aug 2025667 PMAQI
4th Aug 2025598 PMAQI
4th Aug 2025569 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20254811 PMAQI
5th Aug 20255212 AMAQI
5th Aug 2025511 AMAQI
5th Aug 2025442 AMAQI
5th Aug 2025433 AMAQI
5th Aug 2025524 AMAQI
30°C27/34°C
5th Aug 2025555 AMAQI
5th Aug 2025566 AMAQI
5th Aug 2025557 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025489 AMAQI
5th Aug 20255510 AMAQI
5th Aug 20255511 AMAQI
5th Aug 20255812 PMAQI
5th Aug 2025571 PMAQI
5th Aug 2025542 PMAQI
5th Aug 2025483 PMAQI
5th Aug 2025494 PMAQI
5th Aug 2025515 PMAQI
5th Aug 2025436 PMAQI
5th Aug 2025447 PMAQI
5th Aug 2025488 PMAQI
5th Aug 2025509 PMAQI
5th Aug 20255010 PMAQI
5th Aug 20255011 PMAQI
6th Aug 20255312 AMAQI
6th Aug 2025511 AMAQI
6th Aug 2025512 AMAQI
6th Aug 2025503 AMAQI
6th Aug 2025524 AMAQI
29°C26/33°C
6th Aug 2025525 AMAQI
6th Aug 2025536 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025529 AMAQI
6th Aug 20254810 AMAQI
6th Aug 20255511 AMAQI
6th Aug 20255812 PMAQI
6th Aug 2025461 PMAQI
6th Aug 2025512 PMAQI
6th Aug 2025503 PMAQI
6th Aug 2025544 PMAQI
6th Aug 2025545 PMAQI
6th Aug 2025516 PMAQI
6th Aug 2025577 PMAQI
6th Aug 2025558 PMAQI
6th Aug 2025509 PMAQI
6th Aug 20255110 PMAQI
6th Aug 20255011 PMAQI
7th Aug 20254812 AMAQI
7th Aug 2025471 AMAQI
7th Aug 2025522 AMAQI
7th Aug 2025513 AMAQI
7th Aug 2025524 AMAQI
30°C27/34°C
7th Aug 2025525 AMAQI
7th Aug 2025526 AMAQI
7th Aug 2025527 AMAQI
7th Aug 2025528 AMAQI
7th Aug 2025509 AMAQI
7th Aug 20254510 AMAQI
7th Aug 20254811 AMAQI
7th Aug 20253812 PMAQI
7th Aug 2025381 PMAQI
7th Aug 2025342 PMAQI
7th Aug 2025343 PMAQI
7th Aug 2025354 PMAQI
7th Aug 2025415 PMAQI
7th Aug 2025496 PMAQI
7th Aug 2025517 PMAQI
7th Aug 2025518 PMAQI
7th Aug 2025509 PMAQI
7th Aug 20254910 PMAQI
7th Aug 20254911 PMAQI
8th Aug 20254912 AMAQI
8th Aug 2025501 AMAQI
8th Aug 2025522 AMAQI
8th Aug 2025513 AMAQI
8th Aug 2025504 AMAQI
28°C25/32°C
8th Aug 2025505 AMAQI
8th Aug 2025506 AMAQI
8th Aug 2025507 AMAQI
8th Aug 2025498 AMAQI
8th Aug 2025409 AMAQI
8th Aug 20254010 AMAQI
8th Aug 20253911 AMAQI
8th Aug 20254712 PMAQI
8th Aug 2025521 PMAQI
8th Aug 2025572 PMAQI
8th Aug 2025563 PMAQI
8th Aug 2025524 PMAQI
8th Aug 2025575 PMAQI
8th Aug 2025546 PMAQI
8th Aug 2025477 PMAQI
8th Aug 2025448 PMAQI
8th Aug 2025469 PMAQI
8th Aug 20254410 PMAQI
8th Aug 20254311 PMAQI
9th Aug 20254212 AMAQI
9th Aug 2025471 AMAQI
9th Aug 2025512 AMAQI
9th Aug 2025513 AMAQI
9th Aug 2025504 AMAQI
27°C24/31°C
9th Aug 2025515 AMAQI
9th Aug 2025516 AMAQI
9th Aug 2025517 AMAQI
9th Aug 2025518 AMAQI
9th Aug 2025329 AMAQI
9th Aug 20252810 AMAQI
9th Aug 20253011 AMAQI
9th Aug 20254012 PMAQI
9th Aug 2025491 PMAQI
9th Aug 2025532 PMAQI
9th Aug 2025573 PMAQI
9th Aug 2025634 PMAQI
9th Aug 2025655 PMAQI
9th Aug 2025616 PMAQI
9th Aug 2025427 PMAQI
9th Aug 2025358 PMAQI
9th Aug 2025449 PMAQI
9th Aug 20254310 PMAQI
9th Aug 20254111 PMAQI
10th Aug 20254012 AMAQI
10th Aug 2025441 AMAQI
10th Aug 2025492 AMAQI
10th Aug 2025493 AMAQI
10th Aug 2025494 AMAQI
24°C22/26°C
10th Aug 2025485 AMAQI
10th Aug 2025486 AMAQI
10th Aug 2025487 AMAQI
10th Aug 2025488 AMAQI
10th Aug 2025429 AMAQI
10th Aug 20253610 AMAQI
10th Aug 20253911 AMAQI
10th Aug 20254312 PMAQI
10th Aug 2025441 PMAQI
10th Aug 2025452 PMAQI
10th Aug 2025503 PMAQI
10th Aug 2025534 PMAQI
10th Aug 2025525 PMAQI
10th Aug 2025486 PMAQI
10th Aug 2025457 PMAQI
10th Aug 2025408 PMAQI
10th Aug 2025429 PMAQI
10th Aug 20253910 PMAQI
10th Aug 20253811 PMAQI
11th Aug 20253512 AMAQI
11th Aug 2025401 AMAQI
11th Aug 2025482 AMAQI
11th Aug 2025483 AMAQI
11th Aug 2025474 AMAQI
24°C23/25°C
11th Aug 2025475 AMAQI
11th Aug 2025476 AMAQI
11th Aug 2025487 AMAQI
11th Aug 2025478 AMAQI
11th Aug 2025219 AMAQI
11th Aug 20251610 AMAQI
11th Aug 20251811 AMAQI
11th Aug 20251712 PMAQI
11th Aug 2025181 PMAQI
11th Aug 2025182 PMAQI
11th Aug 2025253 PMAQI
11th Aug 2025344 PMAQI
11th Aug 2025275 PMAQI
11th Aug 2025286 PMAQI
11th Aug 2025297 PMAQI
11th Aug 2025298 PMAQI
11th Aug 2025329 PMAQI
11th Aug 20253410 PMAQI
11th Aug 20253311 PMAQI
12th Aug 20253812 AMAQI
12th Aug 2025401 AMAQI
12th Aug 2025422 AMAQI
12th Aug 2025433 AMAQI
12th Aug 2025394 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
44AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
10 AM
31AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 44), while the lowest AQI was between 10 AM to 10 AM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 4 AM
44AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
8 PM - 11 PM
42AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 44), while the lowest AQI was between 8 PM to 11 PM (Avg. 42).
2025 Days Vs Air Quality
Horin, Hayashima, Okayama, Japan
2025
55%
123
43%
96
1%
3
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Good
123 DaysModerate
96 DaysPoor
3 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 55%
Health Risk Level:
Considerable
In 2025, 55% of 223 days were within WHO’s safe air quality limits, and 45% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Horin, Hayashima, Okayama, Japan
AQI levels in 2025
AQI
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.
1st January 2025
35AQI
35AQI
2nd January 2025
40AQI
40AQI
3rd January 2025
34AQI
34AQI
4th January 2025
35AQI
35AQI
5th January 2025
38AQI
38AQI
6th January 2025
53AQI
53AQI
7th January 2025
35AQI
35AQI
8th January 2025
37AQI
37AQI
9th January 2025
31AQI
31AQI
10th January 2025
30AQI
30AQI
11th January 2025
31AQI
31AQI
12th January 2025
33AQI
33AQI
13th January 2025
37AQI
37AQI
14th January 2025
50AQI
50AQI
15th January 2025
42AQI
42AQI
16th January 2025
42AQI
42AQI
17th January 2025
35AQI
35AQI
18th January 2025
41AQI
41AQI
19th January 2025
49AQI
49AQI
20th January 2025
53AQI
53AQI
21st January 2025
52AQI
52AQI
22nd January 2025
69AQI
69AQI
23rd January 2025
86AQI
86AQI
24th January 2025
78AQI
78AQI
25th January 2025
49AQI
49AQI
26th January 2025
47AQI
47AQI
27th January 2025
41AQI
41AQI
28th January 2025
42AQI
42AQI
29th January 2025
36AQI
36AQI
30th January 2025
40AQI
40AQI
31st January 2025
61AQI
61AQI
1st February 2025
73AQI
73AQI
2nd February 2025
51AQI
51AQI
3rd February 2025
60AQI
60AQI
4th February 2025
43AQI
43AQI
5th February 2025
42AQI
42AQI
6th February 2025
34AQI
34AQI
7th February 2025
41AQI
41AQI
8th February 2025
32AQI
32AQI
9th February 2025
34AQI
34AQI
10th February 2025
34AQI
34AQI
11th February 2025
36AQI
36AQI
12th February 2025
45AQI
45AQI
13th February 2025
33AQI
33AQI
14th February 2025
47AQI
47AQI
15th February 2025
31AQI
31AQI
16th February 2025
57AQI
57AQI
17th February 2025
42AQI
42AQI
18th February 2025
42AQI
42AQI
19th February 2025
37AQI
37AQI
20th February 2025
38AQI
38AQI
21st February 2025
34AQI
34AQI
22nd February 2025
36AQI
36AQI
23rd February 2025
35AQI
35AQI
24th February 2025
37AQI
37AQI
25th February 2025
42AQI
42AQI
26th February 2025
43AQI
43AQI
27th February 2025
70AQI
70AQI
28th February 2025
82AQI
82AQI
1st March 2025
118AQI
118AQI
2nd March 2025
108AQI
108AQI
3rd March 2025
65AQI
65AQI
4th March 2025
53AQI
53AQI
5th March 2025
39AQI
39AQI
6th March 2025
41AQI
41AQI
7th March 2025
39AQI
39AQI
8th March 2025
48AQI
48AQI
9th March 2025
49AQI
49AQI
10th March 2025
48AQI
48AQI
11th March 2025
50AQI
50AQI
12th March 2025
62AQI
62AQI
13th March 2025
58AQI
58AQI
14th March 2025
54AQI
54AQI
15th March 2025
43AQI
43AQI
16th March 2025
29AQI
29AQI
17th March 2025
41AQI
41AQI
18th March 2025
37AQI
37AQI
19th March 2025
42AQI
42AQI
20th March 2025
53AQI
53AQI
21st March 2025
61AQI
61AQI
22nd March 2025
68AQI
68AQI
23rd March 2025
75AQI
75AQI
24th March 2025
78AQI
78AQI
25th March 2025
80AQI
80AQI
26th March 2025
92AQI
92AQI
27th March 2025
85AQI
85AQI
28th March 2025
60AQI
60AQI
29th March 2025
56AQI
56AQI
30th March 2025
45AQI
45AQI
31st March 2025
49AQI
49AQI
1st April 2025
44AQI
44AQI
2nd April 2025
46AQI
46AQI
3rd April 2025
29AQI
29AQI
4th April 2025
44AQI
44AQI
5th April 2025
44AQI
44AQI
6th April 2025
55AQI
55AQI
7th April 2025
53AQI
53AQI
8th April 2025
55AQI
55AQI
9th April 2025
71AQI
71AQI
10th April 2025
66AQI
66AQI
11th April 2025
70AQI
70AQI
12th April 2025
57AQI
57AQI
13th April 2025
49AQI
49AQI
14th April 2025
54AQI
54AQI
15th April 2025
35AQI
35AQI
16th April 2025
56AQI
56AQI
17th April 2025
56AQI
56AQI
18th April 2025
66AQI
66AQI
19th April 2025
71AQI
71AQI
20th April 2025
64AQI
64AQI
21st April 2025
50AQI
50AQI
22nd April 2025
54AQI
54AQI
23rd April 2025
57AQI
57AQI
24th April 2025
46AQI
46AQI
25th April 2025
73AQI
73AQI
26th April 2025
68AQI
68AQI
27th April 2025
69AQI
69AQI
28th April 2025
58AQI
58AQI
29th April 2025
54AQI
54AQI
30th April 2025
67AQI
67AQI
1st May 2025
59AQI
59AQI
2nd May 2025
46AQI
46AQI
3rd May 2025
56AQI
56AQI
4th May 2025
45AQI
45AQI
5th May 2025
50AQI
50AQI
6th May 2025
37AQI
37AQI
7th May 2025
41AQI
41AQI
8th May 2025
35AQI
35AQI
9th May 2025
44AQI
44AQI
10th May 2025
39AQI
39AQI
11th May 2025
45AQI
45AQI
12th May 2025
55AQI
55AQI
13th May 2025
60AQI
60AQI
14th May 2025
67AQI
67AQI
15th May 2025
62AQI
62AQI
16th May 2025
58AQI
58AQI
17th May 2025
48AQI
48AQI
18th May 2025
53AQI
53AQI
19th May 2025
61AQI
61AQI
20th May 2025
66AQI
66AQI
21st May 2025
60AQI
60AQI
22nd May 2025
42AQI
42AQI
23rd May 2025
52AQI
52AQI
24th May 2025
44AQI
44AQI
25th May 2025
30AQI
30AQI
26th May 2025
37AQI
37AQI
27th May 2025
42AQI
42AQI
28th May 2025
39AQI
39AQI
29th May 2025
45AQI
45AQI
30th May 2025
44AQI
44AQI
31st May 2025
44AQI
44AQI
1st June 2025
51AQI
51AQI
2nd June 2025
69AQI
69AQI
3rd June 2025
39AQI
39AQI
4th June 2025
54AQI
54AQI
5th June 2025
51AQI
51AQI
6th June 2025
65AQI
65AQI
7th June 2025
65AQI
65AQI
8th June 2025
75AQI
75AQI
9th June 2025
54AQI
54AQI
10th June 2025
38AQI
38AQI
11th June 2025
52AQI
52AQI
12th June 2025
68AQI
68AQI
13th June 2025
61AQI
61AQI
14th June 2025
40AQI
40AQI
15th June 2025
37AQI
37AQI
16th June 2025
48AQI
48AQI
17th June 2025
44AQI
44AQI
18th June 2025
54AQI
54AQI
19th June 2025
56AQI
56AQI
20th June 2025
60AQI
60AQI
21st June 2025
57AQI
57AQI
22nd June 2025
56AQI
56AQI
23rd June 2025
50AQI
50AQI
24th June 2025
44AQI
44AQI
25th June 2025
43AQI
43AQI
26th June 2025
48AQI
48AQI
27th June 2025
58AQI
58AQI
28th June 2025
61AQI
61AQI
29th June 2025
62AQI
62AQI
30th June 2025
62AQI
62AQI
1st July 2025
61AQI
61AQI
2nd July 2025
88AQI
88AQI
3rd July 2025
88AQI
88AQI
4th July 2025
104AQI
104AQI
5th July 2025
86AQI
86AQI
6th July 2025
70AQI
70AQI
7th July 2025
74AQI
74AQI
8th July 2025
70AQI
70AQI
9th July 2025
81AQI
81AQI
10th July 2025
70AQI
70AQI
11th July 2025
58AQI
58AQI
12th July 2025
53AQI
53AQI
13th July 2025
50AQI
50AQI
14th July 2025
42AQI
42AQI
15th July 2025
49AQI
49AQI
16th July 2025
59AQI
59AQI
17th July 2025
39AQI
39AQI
18th July 2025
40AQI
40AQI
19th July 2025
35AQI
35AQI
20th July 2025
33AQI
33AQI
21st July 2025
31AQI
31AQI
22nd July 2025
44AQI
44AQI
23rd July 2025
38AQI
38AQI
24th July 2025
34AQI
34AQI
25th July 2025
27AQI
27AQI
26th July 2025
27AQI
27AQI
27th July 2025
25AQI
25AQI
28th July 2025
26AQI
26AQI
29th July 2025
36AQI
36AQI
30th July 2025
41AQI
41AQI
31st July 2025
48AQI
48AQI
1st August 2025
45AQI
45AQI
2nd August 2025
44AQI
44AQI
3rd August 2025
46AQI
46AQI
4th August 2025
60AQI
60AQI
5th August 2025
51AQI
51AQI
6th August 2025
52AQI
52AQI
7th August 2025
47AQI
47AQI
8th August 2025
49AQI
49AQI
9th August 2025
47AQI
47AQI
10th August 2025
45AQI
45AQI
45AQI
44AQI
59AQI
56AQI
49AQI
54AQI
52AQI
49AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202551AQI
24
7
22
6
14
15
2
9
21
19
12
10
20
18
12
1
7
3
123
96
3
Highest AQI recorded in
March59AQI
Lowest AQI recorded in
February44AQI
202442AQI
16
15
22
7
22
9
11
17
2
20
10
22
8
29
2
24
7
27
3
30
1
23
7
29
2
275
88
2
Highest AQI recorded in
April58AQI
Lowest AQI recorded in
September34AQI
202349AQI
21
9
1
16
12
13
18
13
17
19
12
18
12
25
6
19
12
20
10
21
10
17
10
2
16
14
218
142
3
Highest AQI recorded in
August56AQI
Lowest AQI recorded in
July39AQI
202244AQI
20
11
14
7
15
16
14
16
15
16
23
7
19
5
1
26
2
28
3
18
11
1
26
5
219
99
1
Highest AQI recorded in
March55AQI
Lowest AQI recorded in
September31AQI
202142AQI
20
11
18
10
15
15
17
7
17
14
19
11
30
1
27
4
26
4
27
4
16
14
22
9
254
104
Highest AQI recorded in
May51AQI
Lowest AQI recorded in
September32AQI
202044AQI
6
7
13
8
9
8
1
19
11
29
2
16
15
19
23
8
17
12
1
18
12
1
169
83
3
Highest AQI recorded in
March52AQI
Lowest AQI recorded in
September28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
51AQILeast Polluted Year Recorded
2021(Avg.)
42AQIHorin's annual 2025 AQI (51) shows an average percentage change of 16.03% (worsened AQI) compared to previous years: 2020 (44), 2021 (42), 2022 (44), 2023 (49), 2024 (42).
