Koihonmachi, Hiroshima, Hiroshima, 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
Koihonmachi, Hiroshima, Hiroshima, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Aug 2021
70AQILowest AQI recorded on
29th Aug 2024
13AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 38 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Koihonmachi, Hiroshima, Hiroshima, Japan
AQI
Day
Night
.
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
2PM3rd Aug
50AQI
Avg. Lowest Time
7PM3rd Aug
28AQI
In the last 24 hours,
Koihonmachi's AQI reached its highest point of 50 at 2 PM during the Night, while the lowest point, 28, was recorded at 7 PM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Koihonmachi, Hiroshima, Hiroshima, Japan
JulAug
05th - 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 - 03rd03rd - 04th04th
Day
Night
5th Jul 2025905 AMAQI
5th Jul 2025916 AMAQI
5th Jul 2025927 AMAQI
5th Jul 2025958 AMAQI
5th Jul 2025949 AMAQI
5th Jul 20259710 AMAQI
5th Jul 20259811 AMAQI
5th Jul 20259212 PMAQI
5th Jul 2025921 PMAQI
5th Jul 2025932 PMAQI
5th Jul 2025943 PMAQI
5th Jul 2025924 PMAQI
5th Jul 2025885 PMAQI
5th Jul 2025856 PMAQI
5th Jul 2025847 PMAQI
5th Jul 2025858 PMAQI
5th Jul 2025879 PMAQI
5th Jul 20258710 PMAQI
5th Jul 20258611 PMAQI
6th Jul 20258512 AMAQI
6th Jul 2025881 AMAQI
6th Jul 2025882 AMAQI
6th Jul 2025893 AMAQI
6th Jul 2025904 AMAQI
26°C22/31°C
6th Jul 2025905 AMAQI
6th Jul 2025906 AMAQI
6th Jul 2025907 AMAQI
6th Jul 2025908 AMAQI
6th Jul 2025789 AMAQI
6th Jul 20255310 AMAQI
6th Jul 20254711 AMAQI
6th Jul 20254412 PMAQI
6th Jul 2025581 PMAQI
6th Jul 2025612 PMAQI
6th Jul 2025613 PMAQI
6th Jul 2025604 PMAQI
6th Jul 2025605 PMAQI
6th Jul 2025606 PMAQI
6th Jul 2025597 PMAQI
6th Jul 2025638 PMAQI
6th Jul 2025769 PMAQI
6th Jul 20257610 PMAQI
6th Jul 20257511 PMAQI
7th Jul 20257512 AMAQI
7th Jul 2025801 AMAQI
7th Jul 2025872 AMAQI
7th Jul 2025873 AMAQI
7th Jul 2025854 AMAQI
26°C21/32°C
7th Jul 2025835 AMAQI
7th Jul 2025836 AMAQI
7th Jul 2025827 AMAQI
7th Jul 2025838 AMAQI
7th Jul 2025389 AMAQI
7th Jul 20252010 AMAQI
7th Jul 20252211 AMAQI
7th Jul 20253312 PMAQI
7th Jul 2025501 PMAQI
7th Jul 2025532 PMAQI
7th Jul 2025533 PMAQI
7th Jul 2025534 PMAQI
7th Jul 2025555 PMAQI
7th Jul 2025546 PMAQI
7th Jul 2025647 PMAQI
7th Jul 2025648 PMAQI
7th Jul 2025729 PMAQI
7th Jul 20257210 PMAQI
7th Jul 20257311 PMAQI
8th Jul 20257212 AMAQI
8th Jul 2025751 AMAQI
8th Jul 2025802 AMAQI
8th Jul 2025803 AMAQI
8th Jul 2025784 AMAQI
26°C21/32°C
8th Jul 2025745 AMAQI
8th Jul 2025746 AMAQI
8th Jul 2025747 AMAQI
8th Jul 2025748 AMAQI
8th Jul 2025429 AMAQI
8th Jul 20253010 AMAQI
8th Jul 20254411 AMAQI
8th Jul 20253812 PMAQI
8th Jul 2025561 PMAQI
8th Jul 2025642 PMAQI
8th Jul 2025773 PMAQI
8th Jul 2025764 PMAQI
8th Jul 2025725 PMAQI
8th Jul 2025706 PMAQI
8th Jul 2025717 PMAQI
8th Jul 2025718 PMAQI
8th Jul 2025759 PMAQI
8th Jul 20257410 PMAQI
8th Jul 20257211 PMAQI
9th Jul 20257312 AMAQI
9th Jul 2025741 AMAQI
9th Jul 2025742 AMAQI
9th Jul 2025753 AMAQI
9th Jul 2025744 AMAQI
27°C24/31°C
9th Jul 2025725 AMAQI
9th Jul 2025726 AMAQI
9th Jul 2025727 AMAQI
9th Jul 2025728 AMAQI
9th Jul 2025429 AMAQI
9th Jul 20253410 AMAQI
9th Jul 20253811 AMAQI
9th Jul 20255212 PMAQI
9th Jul 2025601 PMAQI
9th Jul 2025612 PMAQI
9th Jul 2025543 PMAQI
9th Jul 2025604 PMAQI
9th Jul 2025585 PMAQI
9th Jul 2025576 PMAQI
9th Jul 2025587 PMAQI
9th Jul 2025558 PMAQI
9th Jul 2025689 PMAQI
9th Jul 20256610 PMAQI
9th Jul 20256811 PMAQI
10th Jul 20256812 AMAQI
10th Jul 2025721 AMAQI
10th Jul 2025722 AMAQI
10th Jul 2025733 AMAQI
10th Jul 2025724 AMAQI
26°C23/31°C
10th Jul 2025715 AMAQI
10th Jul 2025716 AMAQI
10th Jul 2025707 AMAQI
10th Jul 2025708 AMAQI
10th Jul 2025489 AMAQI
10th Jul 20255710 AMAQI
10th Jul 20258311 AMAQI
10th Jul 20259412 PMAQI
10th Jul 2025901 PMAQI
10th Jul 2025982 PMAQI
10th Jul 2025983 PMAQI
10th Jul 20251014 PMAQI
10th Jul 2025995 PMAQI
10th Jul 2025966 PMAQI
10th Jul 2025947 PMAQI
10th Jul 2025888 PMAQI
10th Jul 2025759 PMAQI
10th Jul 20257410 PMAQI
10th Jul 20257311 PMAQI
11th Jul 20257312 AMAQI
11th Jul 2025721 AMAQI
11th Jul 2025702 AMAQI
11th Jul 2025703 AMAQI
11th Jul 2025704 AMAQI
27°C23/32°C
11th Jul 2025725 AMAQI
11th Jul 2025726 AMAQI
11th Jul 2025727 AMAQI
11th Jul 2025728 AMAQI
11th Jul 2025519 AMAQI
11th Jul 20253610 AMAQI
11th Jul 20253811 AMAQI
11th Jul 20253612 PMAQI
11th Jul 2025531 PMAQI
11th Jul 2025512 PMAQI
11th Jul 2025523 PMAQI
11th Jul 2025524 PMAQI
11th Jul 2025475 PMAQI
11th Jul 2025456 PMAQI
11th Jul 2025467 PMAQI
11th Jul 2025508 PMAQI
11th Jul 2025649 PMAQI
11th Jul 20256410 PMAQI
11th Jul 20256411 PMAQI
12th Jul 20256512 AMAQI
12th Jul 2025681 AMAQI
12th Jul 2025712 AMAQI
12th Jul 2025723 AMAQI
12th Jul 2025704 AMAQI
26°C22/30°C
12th Jul 2025705 AMAQI
12th Jul 2025696 AMAQI
12th Jul 2025697 AMAQI
12th Jul 2025708 AMAQI
12th Jul 2025359 AMAQI
12th Jul 20252410 AMAQI
12th Jul 20252811 AMAQI
12th Jul 20253212 PMAQI
12th Jul 2025421 PMAQI
12th Jul 2025412 PMAQI
12th Jul 2025433 PMAQI
12th Jul 2025454 PMAQI
12th Jul 2025445 PMAQI
12th Jul 2025436 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025508 PMAQI
12th Jul 2025609 PMAQI
12th Jul 20256010 PMAQI
12th Jul 20256011 PMAQI
13th Jul 20256012 AMAQI
13th Jul 2025641 AMAQI
13th Jul 2025662 AMAQI
13th Jul 2025673 AMAQI
13th Jul 2025664 AMAQI
26°C23/30°C
13th Jul 2025635 AMAQI
13th Jul 2025636 AMAQI
13th Jul 2025647 AMAQI
13th Jul 2025638 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20252510 AMAQI
13th Jul 20252611 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025561 PMAQI
13th Jul 2025562 PMAQI
13th Jul 2025543 PMAQI
13th Jul 2025524 PMAQI
13th Jul 2025495 PMAQI
13th Jul 2025496 PMAQI
13th Jul 2025487 PMAQI
13th Jul 2025528 PMAQI
13th Jul 2025579 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255711 PMAQI
14th Jul 20255712 AMAQI
14th Jul 2025591 AMAQI
14th Jul 2025622 AMAQI
14th Jul 2025633 AMAQI
14th Jul 2025634 AMAQI
27°C23/31°C
14th Jul 2025605 AMAQI
14th Jul 2025606 AMAQI
14th Jul 2025617 AMAQI
14th Jul 2025618 AMAQI
14th Jul 2025289 AMAQI
14th Jul 20251810 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251712 PMAQI
14th Jul 2025281 PMAQI
14th Jul 2025292 PMAQI
14th Jul 2025283 PMAQI
14th Jul 2025264 PMAQI
14th Jul 2025255 PMAQI
14th Jul 2025246 PMAQI
14th Jul 2025267 PMAQI
14th Jul 2025318 PMAQI
14th Jul 2025549 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255312 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025592 AMAQI
15th Jul 2025593 AMAQI
15th Jul 2025584 AMAQI
24°C20/26°C
15th Jul 2025565 AMAQI
15th Jul 2025566 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025568 AMAQI
15th Jul 2025269 AMAQI
15th Jul 20251610 AMAQI
15th Jul 20251611 AMAQI
15th Jul 20251612 PMAQI
15th Jul 2025281 PMAQI
15th Jul 2025312 PMAQI
15th Jul 2025333 PMAQI
15th Jul 2025364 PMAQI
15th Jul 2025365 PMAQI
15th Jul 2025336 PMAQI
15th Jul 2025347 PMAQI
15th Jul 2025378 PMAQI
15th Jul 2025539 PMAQI
15th Jul 20255310 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025571 AMAQI
16th Jul 2025562 AMAQI
16th Jul 2025553 AMAQI
16th Jul 2025554 AMAQI
24°C19/28°C
16th Jul 2025535 AMAQI
16th Jul 2025536 AMAQI
16th Jul 2025537 AMAQI
16th Jul 2025538 AMAQI
16th Jul 2025399 AMAQI
16th Jul 20253810 AMAQI
16th Jul 20253611 AMAQI
16th Jul 20253112 PMAQI
16th Jul 2025351 PMAQI
16th Jul 2025362 PMAQI
16th Jul 2025393 PMAQI
16th Jul 2025384 PMAQI
16th Jul 2025415 PMAQI
16th Jul 2025446 PMAQI
16th Jul 2025337 PMAQI
16th Jul 2025378 PMAQI
16th Jul 2025509 PMAQI
16th Jul 20254810 PMAQI
16th Jul 20254911 PMAQI
17th Jul 20255012 AMAQI
17th Jul 2025541 AMAQI
17th Jul 2025542 AMAQI
17th Jul 2025533 AMAQI
17th Jul 2025534 AMAQI
25°C21/29°C
17th Jul 2025525 AMAQI
17th Jul 2025526 AMAQI
17th Jul 2025527 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025579 AMAQI
17th Jul 20255910 AMAQI
17th Jul 20255511 AMAQI
17th Jul 20255112 PMAQI
17th Jul 2025451 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025483 PMAQI
17th Jul 2025514 PMAQI
17th Jul 2025465 PMAQI
17th Jul 2025376 PMAQI
17th Jul 2025307 PMAQI
17th Jul 2025308 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254211 PMAQI
18th Jul 20254312 AMAQI
18th Jul 2025481 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025523 AMAQI
18th Jul 2025524 AMAQI
25°C22/30°C
18th Jul 2025535 AMAQI
18th Jul 2025536 AMAQI
18th Jul 2025537 AMAQI
18th Jul 2025538 AMAQI
18th Jul 2025239 AMAQI
18th Jul 20251410 AMAQI
18th Jul 20251211 AMAQI
18th Jul 20251312 PMAQI
18th Jul 2025201 PMAQI
18th Jul 2025222 PMAQI
18th Jul 2025203 PMAQI
18th Jul 2025204 PMAQI
18th Jul 2025225 PMAQI
18th Jul 2025186 PMAQI
18th Jul 2025207 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025409 PMAQI
18th Jul 20254110 PMAQI
18th Jul 20254011 PMAQI
19th Jul 20254112 AMAQI
19th Jul 2025461 AMAQI
19th Jul 2025502 AMAQI
19th Jul 2025503 AMAQI
19th Jul 2025494 AMAQI
24°C23/25°C
19th Jul 2025455 AMAQI
19th Jul 2025446 AMAQI
19th Jul 2025457 AMAQI
19th Jul 2025458 AMAQI
19th Jul 2025259 AMAQI
19th Jul 20251610 AMAQI
19th Jul 20251511 AMAQI
19th Jul 20251712 PMAQI
19th Jul 2025191 PMAQI
19th Jul 2025202 PMAQI
19th Jul 2025183 PMAQI
19th Jul 2025184 PMAQI
19th Jul 2025205 PMAQI
19th Jul 2025186 PMAQI
19th Jul 2025187 PMAQI
19th Jul 2025268 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253710 PMAQI
19th Jul 20253711 PMAQI
20th Jul 20253712 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025462 AMAQI
20th Jul 2025463 AMAQI
20th Jul 2025444 AMAQI
25°C22/30°C
20th Jul 2025425 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025418 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20251610 AMAQI
20th Jul 20251511 AMAQI
20th Jul 20251812 PMAQI
20th Jul 2025191 PMAQI
20th Jul 2025192 PMAQI
20th Jul 2025163 PMAQI
20th Jul 2025164 PMAQI
20th Jul 2025165 PMAQI
20th Jul 2025176 PMAQI
20th Jul 2025187 PMAQI
20th Jul 2025218 PMAQI
20th Jul 2025329 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253212 AMAQI
21st Jul 2025371 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025403 AMAQI
21st Jul 2025384 AMAQI
26°C22/30°C
21st Jul 2025365 AMAQI
21st Jul 2025366 AMAQI
21st Jul 2025367 AMAQI
21st Jul 2025368 AMAQI
21st Jul 2025189 AMAQI
21st Jul 20251310 AMAQI
21st Jul 20251311 AMAQI
21st Jul 20251512 PMAQI
21st Jul 2025171 PMAQI
21st Jul 2025162 PMAQI
21st Jul 2025173 PMAQI
21st Jul 2025174 PMAQI
21st Jul 2025175 PMAQI
21st Jul 2025186 PMAQI
21st Jul 2025167 PMAQI
21st Jul 2025228 PMAQI
21st Jul 2025299 PMAQI
21st Jul 20253010 PMAQI
21st Jul 20253011 PMAQI
22nd Jul 20253012 AMAQI
22nd Jul 2025331 AMAQI
22nd Jul 2025362 AMAQI
22nd Jul 2025373 AMAQI
22nd Jul 2025354 AMAQI
26°C23/31°C
22nd Jul 2025335 AMAQI
22nd Jul 2025346 AMAQI
22nd Jul 2025347 AMAQI
22nd Jul 2025348 AMAQI
22nd Jul 2025199 AMAQI
22nd Jul 20251610 AMAQI
22nd Jul 20251711 AMAQI
22nd Jul 20251812 PMAQI
22nd Jul 2025201 PMAQI
22nd Jul 2025212 PMAQI
22nd Jul 2025163 PMAQI
22nd Jul 2025174 PMAQI
22nd Jul 2025185 PMAQI
22nd Jul 2025156 PMAQI
22nd Jul 2025177 PMAQI
22nd Jul 2025208 PMAQI
22nd Jul 2025279 PMAQI
22nd Jul 20252810 PMAQI
22nd Jul 20252711 PMAQI
23rd Jul 20252912 AMAQI
23rd Jul 2025321 AMAQI
23rd Jul 2025342 AMAQI
23rd Jul 2025343 AMAQI
23rd Jul 2025324 AMAQI
26°C22/31°C
23rd Jul 2025305 AMAQI
23rd Jul 2025296 AMAQI
23rd Jul 2025297 AMAQI
23rd Jul 2025298 AMAQI
23rd Jul 2025189 AMAQI
23rd Jul 20251610 AMAQI
23rd Jul 20251711 AMAQI
23rd Jul 20251812 PMAQI
23rd Jul 2025191 PMAQI
23rd Jul 2025182 PMAQI
23rd Jul 2025193 PMAQI
23rd Jul 2025174 PMAQI
23rd Jul 2025185 PMAQI
23rd Jul 2025186 PMAQI
23rd Jul 2025197 PMAQI
23rd Jul 2025228 PMAQI
23rd Jul 2025279 PMAQI
23rd Jul 20252710 PMAQI
23rd Jul 20252611 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025321 AMAQI
24th Jul 2025312 AMAQI
24th Jul 2025313 AMAQI
24th Jul 2025314 AMAQI
26°C22/32°C
24th Jul 2025295 AMAQI
24th Jul 2025296 AMAQI
24th Jul 2025297 AMAQI
24th Jul 2025288 AMAQI
24th Jul 2025449 AMAQI
24th Jul 20254610 AMAQI
24th Jul 20254011 AMAQI
24th Jul 20253912 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025492 PMAQI
24th Jul 2025473 PMAQI
24th Jul 2025514 PMAQI
24th Jul 2025465 PMAQI
24th Jul 2025416 PMAQI
24th Jul 2025447 PMAQI
24th Jul 2025468 PMAQI
24th Jul 2025369 PMAQI
24th Jul 20253310 PMAQI
24th Jul 20253211 PMAQI
25th Jul 20253212 AMAQI
25th Jul 2025301 AMAQI
25th Jul 2025302 AMAQI
25th Jul 2025303 AMAQI
25th Jul 2025314 AMAQI
26°C22/32°C
25th Jul 2025335 AMAQI
25th Jul 2025326 AMAQI
25th Jul 2025327 AMAQI
25th Jul 2025328 AMAQI
25th Jul 2025279 AMAQI
25th Jul 20252010 AMAQI
25th Jul 20252011 AMAQI
25th Jul 20252212 PMAQI
25th Jul 2025241 PMAQI
25th Jul 2025232 PMAQI
25th Jul 2025203 PMAQI
25th Jul 2025194 PMAQI
25th Jul 2025165 PMAQI
25th Jul 2025186 PMAQI
25th Jul 2025207 PMAQI
25th Jul 2025238 PMAQI
25th Jul 2025279 PMAQI
25th Jul 20252810 PMAQI
25th Jul 20252811 PMAQI
26th Jul 20253012 AMAQI
26th Jul 2025321 AMAQI
26th Jul 2025332 AMAQI
26th Jul 2025323 AMAQI
26th Jul 2025324 AMAQI
27°C23/32°C
26th Jul 2025315 AMAQI
26th Jul 2025316 AMAQI
26th Jul 2025317 AMAQI
26th Jul 2025318 AMAQI
26th Jul 2025189 AMAQI
26th Jul 20251510 AMAQI
26th Jul 20251611 AMAQI
26th Jul 20251712 PMAQI
26th Jul 2025181 PMAQI
26th Jul 2025202 PMAQI
26th Jul 2025183 PMAQI
26th Jul 2025174 PMAQI
26th Jul 2025185 PMAQI
26th Jul 2025166 PMAQI
26th Jul 2025187 PMAQI
26th Jul 2025198 PMAQI
26th Jul 2025249 PMAQI
26th Jul 20252410 PMAQI
26th Jul 20252511 PMAQI
27th Jul 20252512 AMAQI
27th Jul 2025281 AMAQI
27th Jul 2025312 AMAQI
27th Jul 2025313 AMAQI
27th Jul 2025304 AMAQI
27°C23/32°C
27th Jul 2025285 AMAQI
27th Jul 2025286 AMAQI
27th Jul 2025287 AMAQI
27th Jul 2025288 AMAQI
27th Jul 2025219 AMAQI
27th Jul 20251410 AMAQI
27th Jul 20251411 AMAQI
27th Jul 20251612 PMAQI
27th Jul 2025181 PMAQI
27th Jul 2025162 PMAQI
27th Jul 2025163 PMAQI
27th Jul 2025164 PMAQI
27th Jul 2025165 PMAQI
27th Jul 2025156 PMAQI
27th Jul 2025147 PMAQI
27th Jul 2025188 PMAQI
27th Jul 2025239 PMAQI
27th Jul 20252210 PMAQI
27th Jul 20252211 PMAQI
28th Jul 20252312 AMAQI
28th Jul 2025261 AMAQI
28th Jul 2025282 AMAQI
28th Jul 2025283 AMAQI
28th Jul 2025274 AMAQI
27°C22/33°C
28th Jul 2025265 AMAQI
28th Jul 2025266 AMAQI
28th Jul 2025257 AMAQI
28th Jul 2025248 AMAQI
28th Jul 2025339 AMAQI
28th Jul 20253810 AMAQI
28th Jul 20253611 AMAQI
28th Jul 20253512 PMAQI
28th Jul 2025321 PMAQI
28th Jul 2025332 PMAQI
28th Jul 2025413 PMAQI
28th Jul 2025424 PMAQI
28th Jul 2025405 PMAQI
28th Jul 2025356 PMAQI
28th Jul 2025367 PMAQI
28th Jul 2025368 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20253010 PMAQI
28th Jul 20252911 PMAQI
29th Jul 20252812 AMAQI
29th Jul 2025271 AMAQI
29th Jul 2025262 AMAQI
29th Jul 2025263 AMAQI
29th Jul 2025264 AMAQI
27°C22/32°C
29th Jul 2025275 AMAQI
29th Jul 2025276 AMAQI
29th Jul 2025277 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025289 AMAQI
29th Jul 20252210 AMAQI
29th Jul 20252211 AMAQI
29th Jul 20252812 PMAQI
29th Jul 2025251 PMAQI
29th Jul 2025232 PMAQI
29th Jul 2025233 PMAQI
29th Jul 2025264 PMAQI
29th Jul 2025295 PMAQI
29th Jul 2025226 PMAQI
29th Jul 2025247 PMAQI
29th Jul 2025268 PMAQI
29th Jul 2025269 PMAQI
29th Jul 20252610 PMAQI
29th Jul 20252611 PMAQI
30th Jul 20252912 AMAQI
30th Jul 2025331 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025283 AMAQI
30th Jul 2025284 AMAQI
27°C22/32°C
30th Jul 2025285 AMAQI
30th Jul 2025286 AMAQI
30th Jul 2025277 AMAQI
30th Jul 2025288 AMAQI
30th Jul 2025389 AMAQI
30th Jul 20253310 AMAQI
30th Jul 20253411 AMAQI
30th Jul 20253412 PMAQI
30th Jul 2025581 PMAQI
30th Jul 2025562 PMAQI
30th Jul 2025533 PMAQI
30th Jul 2025504 PMAQI
30th Jul 2025505 PMAQI
30th Jul 2025526 PMAQI
30th Jul 2025487 PMAQI
30th Jul 2025378 PMAQI
30th Jul 2025319 PMAQI
30th Jul 20253010 PMAQI
30th Jul 20252811 PMAQI
31st Jul 20252812 AMAQI
31st Jul 2025281 AMAQI
31st Jul 2025282 AMAQI
31st Jul 2025273 AMAQI
31st Jul 2025284 AMAQI
27°C22/32°C
31st Jul 2025285 AMAQI
31st Jul 2025286 AMAQI
31st Jul 2025287 AMAQI
31st Jul 2025288 AMAQI
31st Jul 2025289 AMAQI
31st Jul 20252810 AMAQI
31st Jul 20254911 AMAQI
31st Jul 20255512 PMAQI
31st Jul 2025531 PMAQI
31st Jul 2025502 PMAQI
31st Jul 2025433 PMAQI
31st Jul 2025454 PMAQI
31st Jul 2025485 PMAQI
31st Jul 2025426 PMAQI
31st Jul 2025407 PMAQI
31st Jul 2025378 PMAQI
31st Jul 2025489 PMAQI
31st Jul 20254910 PMAQI
31st Jul 20254111 PMAQI
1st Aug 20253412 AMAQI
1st Aug 2025331 AMAQI
1st Aug 2025332 AMAQI
1st Aug 2025323 AMAQI
1st Aug 2025354 AMAQI
27°C22/32°C
1st Aug 2025365 AMAQI
1st Aug 2025396 AMAQI
1st Aug 2025427 AMAQI
1st Aug 2025398 AMAQI
1st Aug 2025369 AMAQI
1st Aug 20254010 AMAQI
1st Aug 20254711 AMAQI
1st Aug 20254512 PMAQI
1st Aug 2025411 PMAQI
1st Aug 2025442 PMAQI
1st Aug 2025433 PMAQI
1st Aug 2025464 PMAQI
1st Aug 2025535 PMAQI
1st Aug 2025496 PMAQI
1st Aug 2025517 PMAQI
1st Aug 2025408 PMAQI
1st Aug 2025369 PMAQI
1st Aug 20253310 PMAQI
1st Aug 20253411 PMAQI
2nd Aug 20253512 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025363 AMAQI
2nd Aug 2025374 AMAQI
27°C23/32°C
2nd Aug 2025385 AMAQI
2nd Aug 2025396 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025369 AMAQI
2nd Aug 20253410 AMAQI
2nd Aug 20253911 AMAQI
2nd Aug 20254712 PMAQI
2nd Aug 2025541 PMAQI
2nd Aug 2025502 PMAQI
2nd Aug 2025463 PMAQI
2nd Aug 2025454 PMAQI
2nd Aug 2025435 PMAQI
2nd Aug 2025396 PMAQI
2nd Aug 2025367 PMAQI
2nd Aug 2025338 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253410 PMAQI
2nd Aug 20253211 PMAQI
3rd Aug 20254312 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025404 AMAQI
28°C23/35°C
3rd Aug 2025425 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025427 AMAQI
3rd Aug 2025408 AMAQI
3rd Aug 2025349 AMAQI
3rd Aug 20253310 AMAQI
3rd Aug 20253811 AMAQI
3rd Aug 20254912 PMAQI
3rd Aug 2025391 PMAQI
3rd Aug 2025502 PMAQI
3rd Aug 2025343 PMAQI
3rd Aug 2025494 PMAQI
3rd Aug 2025395 PMAQI
3rd Aug 2025366 PMAQI
3rd Aug 2025287 PMAQI
3rd Aug 2025318 PMAQI
3rd Aug 2025449 PMAQI
3rd Aug 20254110 PMAQI
3rd Aug 20253811 PMAQI
4th Aug 20254812 AMAQI
4th Aug 2025421 AMAQI
4th Aug 2025402 AMAQI
4th Aug 2025413 AMAQI
4th Aug 2025424 AMAQI
--°C/°C
4th Aug 2025425 AMAQI
5 AM4th Aug 2025426 AMAQI
4th Aug 2025437 AMAQI
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
50AQI
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. 50), while the lowest AQI was between 10 AM to 10 AM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 4 AM
49AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
8 PM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 49), while the lowest AQI was between 8 PM to 8 PM (Avg. 40).
2025 Days Vs Air Quality
Koihonmachi, Hiroshima, Hiroshima, Japan
2025
86%
184
14%
30
0.4%
1
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
184 DaysModerate
30 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% 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
Koihonmachi, Hiroshima, Hiroshima, 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
25AQI
25AQI
2nd January 2025
31AQI
31AQI
3rd January 2025
27AQI
27AQI
4th January 2025
28AQI
28AQI
5th January 2025
24AQI
24AQI
6th January 2025
25AQI
25AQI
7th January 2025
27AQI
27AQI
8th January 2025
26AQI
26AQI
9th January 2025
26AQI
26AQI
10th January 2025
24AQI
24AQI
11th January 2025
25AQI
25AQI
12th January 2025
26AQI
26AQI
13th January 2025
31AQI
31AQI
14th January 2025
32AQI
32AQI
15th January 2025
32AQI
32AQI
16th January 2025
29AQI
29AQI
17th January 2025
26AQI
26AQI
18th January 2025
24AQI
24AQI
19th January 2025
35AQI
35AQI
20th January 2025
29AQI
29AQI
21st January 2025
36AQI
36AQI
22nd January 2025
56AQI
56AQI
23rd January 2025
61AQI
61AQI
24th January 2025
48AQI
48AQI
25th January 2025
43AQI
43AQI
26th January 2025
37AQI
37AQI
27th January 2025
31AQI
31AQI
28th January 2025
30AQI
30AQI
29th January 2025
29AQI
29AQI
30th January 2025
42AQI
42AQI
31st January 2025
34AQI
34AQI
1st February 2025
36AQI
36AQI
2nd February 2025
29AQI
29AQI
3rd February 2025
32AQI
32AQI
4th February 2025
29AQI
29AQI
5th February 2025
28AQI
28AQI
6th February 2025
29AQI
29AQI
7th February 2025
26AQI
26AQI
8th February 2025
27AQI
27AQI
9th February 2025
25AQI
25AQI
10th February 2025
26AQI
26AQI
11th February 2025
31AQI
31AQI
12th February 2025
25AQI
25AQI
13th February 2025
30AQI
30AQI
14th February 2025
31AQI
31AQI
15th February 2025
29AQI
29AQI
16th February 2025
36AQI
36AQI
17th February 2025
38AQI
38AQI
18th February 2025
32AQI
32AQI
19th February 2025
32AQI
32AQI
20th February 2025
28AQI
28AQI
21st February 2025
31AQI
31AQI
22nd February 2025
35AQI
35AQI
23rd February 2025
31AQI
31AQI
24th February 2025
33AQI
33AQI
25th February 2025
35AQI
35AQI
26th February 2025
35AQI
35AQI
27th February 2025
41AQI
41AQI
28th February 2025
39AQI
39AQI
1st March 2025
44AQI
44AQI
2nd March 2025
65AQI
65AQI
3rd March 2025
43AQI
43AQI
4th March 2025
40AQI
40AQI
5th March 2025
30AQI
30AQI
6th March 2025
35AQI
35AQI
7th March 2025
32AQI
32AQI
8th March 2025
38AQI
38AQI
9th March 2025
39AQI
39AQI
10th March 2025
40AQI
40AQI
11th March 2025
41AQI
41AQI
12th March 2025
43AQI
43AQI
13th March 2025
49AQI
49AQI
14th March 2025
29AQI
29AQI
15th March 2025
28AQI
28AQI
16th March 2025
18AQI
18AQI
17th March 2025
31AQI
31AQI
18th March 2025
20AQI
20AQI
19th March 2025
37AQI
37AQI
20th March 2025
42AQI
42AQI
21st March 2025
35AQI
35AQI
22nd March 2025
66AQI
66AQI
23rd March 2025
41AQI
41AQI
24th March 2025
41AQI
41AQI
25th March 2025
57AQI
57AQI
26th March 2025
72AQI
72AQI
27th March 2025
62AQI
62AQI
28th March 2025
44AQI
44AQI
29th March 2025
40AQI
40AQI
30th March 2025
38AQI
38AQI
31st March 2025
38AQI
38AQI
1st April 2025
40AQI
40AQI
2nd April 2025
34AQI
34AQI
3rd April 2025
23AQI
23AQI
4th April 2025
30AQI
30AQI
5th April 2025
25AQI
25AQI
6th April 2025
21AQI
21AQI
7th April 2025
20AQI
20AQI
8th April 2025
17AQI
17AQI
9th April 2025
24AQI
24AQI
10th April 2025
22AQI
22AQI
11th April 2025
23AQI
23AQI
12th April 2025
25AQI
25AQI
13th April 2025
18AQI
18AQI
14th April 2025
23AQI
23AQI
15th April 2025
17AQI
17AQI
16th April 2025
21AQI
21AQI
17th April 2025
21AQI
21AQI
18th April 2025
25AQI
25AQI
19th April 2025
23AQI
23AQI
20th April 2025
21AQI
21AQI
21st April 2025
18AQI
18AQI
22nd April 2025
18AQI
18AQI
23rd April 2025
14AQI
14AQI
24th April 2025
14AQI
14AQI
25th April 2025
50AQI
50AQI
26th April 2025
29AQI
29AQI
27th April 2025
38AQI
38AQI
28th April 2025
32AQI
32AQI
29th April 2025
29AQI
29AQI
30th April 2025
28AQI
28AQI
1st May 2025
46AQI
46AQI
2nd May 2025
36AQI
36AQI
3rd May 2025
45AQI
45AQI
4th May 2025
28AQI
28AQI
5th May 2025
31AQI
31AQI
6th May 2025
21AQI
21AQI
7th May 2025
21AQI
21AQI
8th May 2025
24AQI
24AQI
9th May 2025
36AQI
36AQI
10th May 2025
30AQI
30AQI
11th May 2025
41AQI
41AQI
12th May 2025
51AQI
51AQI
13th May 2025
44AQI
44AQI
14th May 2025
58AQI
58AQI
15th May 2025
54AQI
54AQI
16th May 2025
39AQI
39AQI
17th May 2025
43AQI
43AQI
18th May 2025
37AQI
37AQI
19th May 2025
58AQI
58AQI
20th May 2025
56AQI
56AQI
21st May 2025
36AQI
36AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
33AQI
33AQI
24th May 2025
28AQI
28AQI
25th May 2025
22AQI
22AQI
26th May 2025
22AQI
22AQI
27th May 2025
36AQI
36AQI
28th May 2025
24AQI
24AQI
29th May 2025
46AQI
46AQI
30th May 2025
37AQI
37AQI
31st May 2025
39AQI
39AQI
1st June 2025
46AQI
46AQI
2nd June 2025
53AQI
53AQI
3rd June 2025
28AQI
28AQI
4th June 2025
48AQI
48AQI
5th June 2025
46AQI
46AQI
6th June 2025
44AQI
44AQI
7th June 2025
38AQI
38AQI
8th June 2025
66AQI
66AQI
9th June 2025
69AQI
69AQI
10th June 2025
38AQI
38AQI
11th June 2025
30AQI
30AQI
12th June 2025
47AQI
47AQI
13th June 2025
40AQI
40AQI
14th June 2025
37AQI
37AQI
15th June 2025
26AQI
26AQI
16th June 2025
24AQI
24AQI
17th June 2025
23AQI
23AQI
18th June 2025
25AQI
25AQI
19th June 2025
39AQI
39AQI
20th June 2025
45AQI
45AQI
21st June 2025
46AQI
46AQI
22nd June 2025
57AQI
57AQI
23rd June 2025
48AQI
48AQI
24th June 2025
45AQI
45AQI
25th June 2025
43AQI
43AQI
26th June 2025
50AQI
50AQI
27th June 2025
55AQI
55AQI
28th June 2025
47AQI
47AQI
29th June 2025
46AQI
46AQI
30th June 2025
54AQI
54AQI
1st July 2025
53AQI
53AQI
2nd July 2025
78AQI
78AQI
3rd July 2025
96AQI
96AQI
4th July 2025
103AQI
103AQI
5th July 2025
90AQI
90AQI
6th July 2025
75AQI
75AQI
7th July 2025
67AQI
67AQI
8th July 2025
69AQI
69AQI
9th July 2025
64AQI
64AQI
10th July 2025
77AQI
77AQI
11th July 2025
61AQI
61AQI
12th July 2025
56AQI
56AQI
13th July 2025
56AQI
56AQI
14th July 2025
45AQI
45AQI
15th July 2025
45AQI
45AQI
16th July 2025
47AQI
47AQI
17th July 2025
47AQI
47AQI
18th July 2025
36AQI
36AQI
19th July 2025
33AQI
33AQI
20th July 2025
31AQI
31AQI
21st July 2025
27AQI
27AQI
22nd July 2025
26AQI
26AQI
23rd July 2025
25AQI
25AQI
24th July 2025
35AQI
35AQI
25th July 2025
27AQI
27AQI
26th July 2025
24AQI
24AQI
27th July 2025
22AQI
22AQI
28th July 2025
30AQI
30AQI
29th July 2025
26AQI
26AQI
30th July 2025
35AQI
35AQI
31st July 2025
36AQI
36AQI
1st August 2025
39AQI
39AQI
2nd August 2025
38AQI
38AQI
3rd August 2025
38AQI
38AQI
32AQI
31AQI
41AQI
25AQI
38AQI
43AQI
50AQI
38AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202537AQI
29
2
28
26
5
30
26
5
24
6
18
12
1
3
184
30
1
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
April25AQI
202438AQI
30
1
24
5
23
8
17
13
24
7
22
8
28
3
26
5
22
8
31
28
2
31
306
60
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
December26AQI
202346AQI
21
9
1
22
6
9
22
11
19
18
13
16
14
26
5
26
5
26
4
24
7
19
10
17
14
235
128
1
Highest AQI recorded in
March58AQI
Lowest AQI recorded in
August39AQI
202243AQI
25
5
17
4
16
15
15
15
11
20
19
11
15
6
1
27
1
27
4
20
10
30
1
223
92
Highest AQI recorded in
May54AQI
Lowest AQI recorded in
December34AQI
202143AQI
23
7
18
10
15
15
1
22
8
22
9
13
17
19
12
25
6
25
5
24
7
20
10
27
4
253
110
1
Highest AQI recorded in
March52AQI
Lowest AQI recorded in
October38AQI
202042AQI
9
4
14
7
13
5
18
12
27
4
13
17
1
15
4
27
4
24
6
25
6
185
69
1
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
July33AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
46AQILeast Polluted Year Recorded
2025(Avg.)
37AQIKoihonmachi's annual 2025 AQI (37) shows an average percentage change of -11.6% (improved AQI) compared to previous years: 2020 (42), 2021 (43), 2022 (43), 2023 (46), 2024 (38).
