Ozumachi, Iwakuni, Yamaguchi, 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
Ozumachi, Iwakuni, Yamaguchi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Aug 2021
64AQILowest AQI recorded on
15th Aug 2023
16AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 50 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Ozumachi, Iwakuni, Yamaguchi, Japan
AQI
Day
Night
.
5 AM5th Aug 2025
7 PM
4 AM6th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
8AM5th Aug
53AQI
Avg. Lowest Time
7PM5th Aug
37AQI
In the last 24 hours,
Ozumachi's AQI reached its highest point of 53 at 8 AM during the Night, while the lowest point, 37, was recorded at 7 PM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ozumachi, Iwakuni, Yamaguchi, Japan
JulAug
07th - 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 - 05th05th - 06th06th
Day
Night
7th Jul 2025785 AMAQI
7th Jul 2025806 AMAQI
7th Jul 2025797 AMAQI
7th Jul 2025788 AMAQI
7th Jul 2025549 AMAQI
7th Jul 20255610 AMAQI
7th Jul 20255211 AMAQI
7th Jul 20255012 PMAQI
7th Jul 2025521 PMAQI
7th Jul 2025542 PMAQI
7th Jul 2025563 PMAQI
7th Jul 2025554 PMAQI
7th Jul 2025585 PMAQI
7th Jul 2025576 PMAQI
7th Jul 2025547 PMAQI
7th Jul 2025598 PMAQI
7th Jul 2025679 PMAQI
7th Jul 20256810 PMAQI
7th Jul 20256911 PMAQI
8th Jul 20257012 AMAQI
8th Jul 2025731 AMAQI
8th Jul 2025802 AMAQI
8th Jul 2025783 AMAQI
8th Jul 2025784 AMAQI
26°C22/30°C
8th Jul 2025745 AMAQI
8th Jul 2025746 AMAQI
8th Jul 2025747 AMAQI
8th Jul 2025748 AMAQI
8th Jul 2025659 AMAQI
8th Jul 20255910 AMAQI
8th Jul 20256211 AMAQI
8th Jul 20256812 PMAQI
8th Jul 2025671 PMAQI
8th Jul 2025722 PMAQI
8th Jul 2025693 PMAQI
8th Jul 2025664 PMAQI
8th Jul 2025705 PMAQI
8th Jul 2025696 PMAQI
8th Jul 2025697 PMAQI
8th Jul 2025678 PMAQI
8th Jul 2025729 PMAQI
8th Jul 20257010 PMAQI
8th Jul 20257211 PMAQI
9th Jul 20257312 AMAQI
9th Jul 2025741 AMAQI
9th Jul 2025742 AMAQI
9th Jul 2025743 AMAQI
9th Jul 2025744 AMAQI
26°C23/30°C
9th Jul 2025725 AMAQI
9th Jul 2025726 AMAQI
9th Jul 2025727 AMAQI
9th Jul 2025728 AMAQI
9th Jul 2025749 AMAQI
9th Jul 20257610 AMAQI
9th Jul 20257311 AMAQI
9th Jul 20257212 PMAQI
9th Jul 2025781 PMAQI
9th Jul 2025792 PMAQI
9th Jul 2025773 PMAQI
9th Jul 2025774 PMAQI
9th Jul 2025805 PMAQI
9th Jul 2025836 PMAQI
9th Jul 2025857 PMAQI
9th Jul 2025808 PMAQI
9th Jul 2025769 PMAQI
9th Jul 20257410 PMAQI
9th Jul 20257411 PMAQI
10th Jul 20257612 AMAQI
10th Jul 2025751 AMAQI
10th Jul 2025722 AMAQI
10th Jul 2025723 AMAQI
10th Jul 2025734 AMAQI
26°C23/30°C
10th Jul 2025725 AMAQI
10th Jul 2025726 AMAQI
10th Jul 2025727 AMAQI
10th Jul 2025728 AMAQI
10th Jul 2025789 AMAQI
10th Jul 20258410 AMAQI
10th Jul 20258911 AMAQI
10th Jul 20259612 PMAQI
10th Jul 2025991 PMAQI
10th Jul 20251012 PMAQI
10th Jul 20251003 PMAQI
10th Jul 20251044 PMAQI
10th Jul 2025995 PMAQI
10th Jul 20251066 PMAQI
10th Jul 2025957 PMAQI
10th Jul 2025898 PMAQI
10th Jul 2025809 PMAQI
10th Jul 20257810 PMAQI
10th Jul 20257611 PMAQI
11th Jul 20257712 AMAQI
11th Jul 2025761 AMAQI
11th Jul 2025712 AMAQI
11th Jul 2025713 AMAQI
11th Jul 2025724 AMAQI
26°C23/30°C
11th Jul 2025755 AMAQI
11th Jul 2025756 AMAQI
11th Jul 2025757 AMAQI
11th Jul 2025758 AMAQI
11th Jul 2025779 AMAQI
11th Jul 20257810 AMAQI
11th Jul 20257411 AMAQI
11th Jul 20257312 PMAQI
11th Jul 2025801 PMAQI
11th Jul 2025782 PMAQI
11th Jul 2025763 PMAQI
11th Jul 2025664 PMAQI
11th Jul 2025535 PMAQI
11th Jul 2025446 PMAQI
11th Jul 2025477 PMAQI
11th Jul 2025508 PMAQI
11th Jul 2025649 PMAQI
11th Jul 20256410 PMAQI
11th Jul 20256411 PMAQI
12th Jul 20256412 AMAQI
12th Jul 2025661 AMAQI
12th Jul 2025732 AMAQI
12th Jul 2025733 AMAQI
12th Jul 2025734 AMAQI
26°C23/29°C
12th Jul 2025725 AMAQI
12th Jul 2025736 AMAQI
12th Jul 2025747 AMAQI
12th Jul 2025728 AMAQI
12th Jul 2025579 AMAQI
12th Jul 20255010 AMAQI
12th Jul 20255611 AMAQI
12th Jul 20255812 PMAQI
12th Jul 2025601 PMAQI
12th Jul 2025622 PMAQI
12th Jul 2025643 PMAQI
12th Jul 2025604 PMAQI
12th Jul 2025585 PMAQI
12th Jul 2025516 PMAQI
12th Jul 2025467 PMAQI
12th Jul 2025498 PMAQI
12th Jul 2025619 PMAQI
12th Jul 20256210 PMAQI
12th Jul 20256011 PMAQI
13th Jul 20255912 AMAQI
13th Jul 2025611 AMAQI
13th Jul 2025702 AMAQI
13th Jul 2025693 AMAQI
13th Jul 2025694 AMAQI
26°C23/29°C
13th Jul 2025675 AMAQI
13th Jul 2025686 AMAQI
13th Jul 2025677 AMAQI
13th Jul 2025678 AMAQI
13th Jul 2025539 AMAQI
13th Jul 20255210 AMAQI
13th Jul 20254611 AMAQI
13th Jul 20254412 PMAQI
13th Jul 2025531 PMAQI
13th Jul 2025552 PMAQI
13th Jul 2025553 PMAQI
13th Jul 2025544 PMAQI
13th Jul 2025545 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025407 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025539 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255311 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025571 AMAQI
14th Jul 2025652 AMAQI
14th Jul 2025653 AMAQI
14th Jul 2025644 AMAQI
26°C24/29°C
14th Jul 2025625 AMAQI
14th Jul 2025626 AMAQI
14th Jul 2025627 AMAQI
14th Jul 2025638 AMAQI
14th Jul 2025299 AMAQI
14th Jul 20251710 AMAQI
14th Jul 20251911 AMAQI
14th Jul 20251912 PMAQI
14th Jul 2025221 PMAQI
14th Jul 2025202 PMAQI
14th Jul 2025213 PMAQI
14th Jul 2025224 PMAQI
14th Jul 2025235 PMAQI
14th Jul 2025236 PMAQI
14th Jul 2025217 PMAQI
14th Jul 2025288 PMAQI
14th Jul 2025519 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255111 PMAQI
15th Jul 20255212 AMAQI
15th Jul 2025541 AMAQI
15th Jul 2025602 AMAQI
15th Jul 2025613 AMAQI
15th Jul 2025594 AMAQI
24°C20/27°C
15th Jul 2025565 AMAQI
15th Jul 2025576 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025578 AMAQI
15th Jul 2025389 AMAQI
15th Jul 20253010 AMAQI
15th Jul 20253111 AMAQI
15th Jul 20253212 PMAQI
15th Jul 2025391 PMAQI
15th Jul 2025442 PMAQI
15th Jul 2025563 PMAQI
15th Jul 2025684 PMAQI
15th Jul 2025705 PMAQI
15th Jul 2025736 PMAQI
15th Jul 2025727 PMAQI
15th Jul 2025688 PMAQI
15th Jul 2025609 PMAQI
15th Jul 20255810 PMAQI
15th Jul 20255811 PMAQI
16th Jul 20255812 AMAQI
16th Jul 2025581 AMAQI
16th Jul 2025562 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025564 AMAQI
24°C21/29°C
16th Jul 2025545 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025547 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025569 AMAQI
16th Jul 20255510 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20256012 PMAQI
16th Jul 2025601 PMAQI
16th Jul 2025662 PMAQI
16th Jul 2025663 PMAQI
16th Jul 2025674 PMAQI
16th Jul 2025615 PMAQI
16th Jul 2025576 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025538 PMAQI
16th Jul 2025559 PMAQI
16th Jul 20255710 PMAQI
16th Jul 20255811 PMAQI
17th Jul 20255912 AMAQI
17th Jul 2025581 AMAQI
17th Jul 2025562 AMAQI
17th Jul 2025563 AMAQI
17th Jul 2025564 AMAQI
25°C22/29°C
17th Jul 2025565 AMAQI
17th Jul 2025566 AMAQI
17th Jul 2025567 AMAQI
17th Jul 2025568 AMAQI
17th Jul 2025569 AMAQI
17th Jul 20255510 AMAQI
17th Jul 20255311 AMAQI
17th Jul 20255012 PMAQI
17th Jul 2025471 PMAQI
17th Jul 2025522 PMAQI
17th Jul 2025563 PMAQI
17th Jul 2025584 PMAQI
17th Jul 2025555 PMAQI
17th Jul 2025486 PMAQI
17th Jul 2025287 PMAQI
17th Jul 2025308 PMAQI
17th Jul 2025469 PMAQI
17th Jul 20254610 PMAQI
17th Jul 20254511 PMAQI
18th Jul 20254312 AMAQI
18th Jul 2025481 AMAQI
18th Jul 2025552 AMAQI
18th Jul 2025563 AMAQI
18th Jul 2025564 AMAQI
25°C23/28°C
18th Jul 2025565 AMAQI
18th Jul 2025556 AMAQI
18th Jul 2025567 AMAQI
18th Jul 2025568 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20251310 AMAQI
18th Jul 20251311 AMAQI
18th Jul 20251812 PMAQI
18th Jul 2025201 PMAQI
18th Jul 2025212 PMAQI
18th Jul 2025253 PMAQI
18th Jul 2025274 PMAQI
18th Jul 2025305 PMAQI
18th Jul 2025306 PMAQI
18th Jul 2025277 PMAQI
18th Jul 2025348 PMAQI
18th Jul 2025469 PMAQI
18th Jul 20254610 PMAQI
18th Jul 20254311 PMAQI
19th Jul 20254412 AMAQI
19th Jul 2025451 AMAQI
19th Jul 2025532 AMAQI
19th Jul 2025533 AMAQI
19th Jul 2025524 AMAQI
24°C23/25°C
19th Jul 2025505 AMAQI
19th Jul 2025506 AMAQI
19th Jul 2025507 AMAQI
19th Jul 2025508 AMAQI
19th Jul 2025329 AMAQI
19th Jul 20253010 AMAQI
19th Jul 20253611 AMAQI
19th Jul 20253212 PMAQI
19th Jul 2025291 PMAQI
19th Jul 2025292 PMAQI
19th Jul 2025293 PMAQI
19th Jul 2025274 PMAQI
19th Jul 2025305 PMAQI
19th Jul 2025306 PMAQI
19th Jul 2025267 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025379 PMAQI
19th Jul 20253710 PMAQI
19th Jul 20253811 PMAQI
20th Jul 20253812 AMAQI
20th Jul 2025411 AMAQI
20th Jul 2025512 AMAQI
20th Jul 2025523 AMAQI
20th Jul 2025504 AMAQI
25°C23/28°C
20th Jul 2025475 AMAQI
20th Jul 2025476 AMAQI
20th Jul 2025477 AMAQI
20th Jul 2025488 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20252910 AMAQI
20th Jul 20254311 AMAQI
20th Jul 20253412 PMAQI
20th Jul 2025321 PMAQI
20th Jul 2025332 PMAQI
20th Jul 2025363 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025345 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025268 PMAQI
20th Jul 2025359 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025472 AMAQI
21st Jul 2025463 AMAQI
21st Jul 2025454 AMAQI
26°C23/29°C
21st Jul 2025445 AMAQI
21st Jul 2025446 AMAQI
21st Jul 2025437 AMAQI
21st Jul 2025448 AMAQI
21st Jul 2025289 AMAQI
21st Jul 20253010 AMAQI
21st Jul 20253011 AMAQI
21st Jul 20253012 PMAQI
21st Jul 2025261 PMAQI
21st Jul 2025242 PMAQI
21st Jul 2025233 PMAQI
21st Jul 2025224 PMAQI
21st Jul 2025245 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025227 PMAQI
21st Jul 2025218 PMAQI
21st Jul 2025269 PMAQI
21st Jul 20252810 PMAQI
21st Jul 20252711 PMAQI
22nd Jul 20252712 AMAQI
22nd Jul 2025321 AMAQI
22nd Jul 2025422 AMAQI
22nd Jul 2025423 AMAQI
22nd Jul 2025424 AMAQI
26°C23/30°C
22nd Jul 2025395 AMAQI
22nd Jul 2025386 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025398 AMAQI
22nd Jul 2025269 AMAQI
22nd Jul 20252010 AMAQI
22nd Jul 20252811 AMAQI
22nd Jul 20252312 PMAQI
22nd Jul 2025221 PMAQI
22nd Jul 2025222 PMAQI
22nd Jul 2025223 PMAQI
22nd Jul 2025244 PMAQI
22nd Jul 2025275 PMAQI
22nd Jul 2025326 PMAQI
22nd Jul 2025287 PMAQI
22nd Jul 2025308 PMAQI
22nd Jul 2025289 PMAQI
22nd Jul 20252810 PMAQI
22nd Jul 20252711 PMAQI
23rd Jul 20252912 AMAQI
23rd Jul 2025311 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI
23rd Jul 2025374 AMAQI
26°C23/30°C
23rd Jul 2025345 AMAQI
23rd Jul 2025346 AMAQI
23rd Jul 2025347 AMAQI
23rd Jul 2025348 AMAQI
23rd Jul 2025249 AMAQI
23rd Jul 20252210 AMAQI
23rd Jul 20252711 AMAQI
23rd Jul 20253412 PMAQI
23rd Jul 2025301 PMAQI
23rd Jul 2025282 PMAQI
23rd Jul 2025333 PMAQI
23rd Jul 2025424 PMAQI
23rd Jul 2025425 PMAQI
23rd Jul 2025456 PMAQI
23rd Jul 2025407 PMAQI
23rd Jul 2025398 PMAQI
23rd Jul 2025359 PMAQI
23rd Jul 20253610 PMAQI
23rd Jul 20252911 PMAQI
24th Jul 20252612 AMAQI
24th Jul 2025301 AMAQI
24th Jul 2025342 AMAQI
24th Jul 2025343 AMAQI
24th Jul 2025344 AMAQI
26°C23/30°C
24th Jul 2025335 AMAQI
24th Jul 2025336 AMAQI
24th Jul 2025337 AMAQI
24th Jul 2025338 AMAQI
24th Jul 2025319 AMAQI
24th Jul 20255110 AMAQI
24th Jul 20255611 AMAQI
24th Jul 20255212 PMAQI
24th Jul 2025411 PMAQI
24th Jul 2025502 PMAQI
24th Jul 2025483 PMAQI
24th Jul 2025504 PMAQI
24th Jul 2025455 PMAQI
24th Jul 2025486 PMAQI
24th Jul 2025547 PMAQI
24th Jul 2025388 PMAQI
24th Jul 2025329 PMAQI
24th Jul 20252610 PMAQI
24th Jul 20252511 PMAQI
25th Jul 20252512 AMAQI
25th Jul 2025271 AMAQI
25th Jul 2025322 AMAQI
25th Jul 2025333 AMAQI
25th Jul 2025344 AMAQI
26°C23/30°C
25th Jul 2025355 AMAQI
25th Jul 2025366 AMAQI
25th Jul 2025357 AMAQI
25th Jul 2025358 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20254710 AMAQI
25th Jul 20254911 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025502 PMAQI
25th Jul 2025503 PMAQI
25th Jul 2025424 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025316 PMAQI
25th Jul 2025297 PMAQI
25th Jul 2025268 PMAQI
25th Jul 2025319 PMAQI
25th Jul 20253310 PMAQI
25th Jul 20253411 PMAQI
26th Jul 20253212 AMAQI
26th Jul 2025311 AMAQI
26th Jul 2025322 AMAQI
26th Jul 2025323 AMAQI
26th Jul 2025334 AMAQI
27°C24/30°C
26th Jul 2025345 AMAQI
26th Jul 2025356 AMAQI
26th Jul 2025357 AMAQI
26th Jul 2025358 AMAQI
26th Jul 2025309 AMAQI
26th Jul 20252710 AMAQI
26th Jul 20252511 AMAQI
26th Jul 20252712 PMAQI
26th Jul 2025281 PMAQI
26th Jul 2025332 PMAQI
26th Jul 2025353 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025285 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025187 PMAQI
26th Jul 2025208 PMAQI
26th Jul 2025249 PMAQI
26th Jul 20252410 PMAQI
26th Jul 20252511 PMAQI
27th Jul 20252212 AMAQI
27th Jul 2025261 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025323 AMAQI
27th Jul 2025324 AMAQI
27°C24/30°C
27th Jul 2025315 AMAQI
27th Jul 2025326 AMAQI
27th Jul 2025327 AMAQI
27th Jul 2025328 AMAQI
27th Jul 2025269 AMAQI
27th Jul 20252910 AMAQI
27th Jul 20252211 AMAQI
27th Jul 20252012 PMAQI
27th Jul 2025241 PMAQI
27th Jul 2025222 PMAQI
27th Jul 2025193 PMAQI
27th Jul 2025204 PMAQI
27th Jul 2025235 PMAQI
27th Jul 2025226 PMAQI
27th Jul 2025207 PMAQI
27th Jul 2025208 PMAQI
27th Jul 2025269 PMAQI
27th Jul 20252910 PMAQI
27th Jul 20252611 PMAQI
28th Jul 20252812 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025302 AMAQI
28th Jul 2025303 AMAQI
28th Jul 2025294 AMAQI
27°C23/31°C
28th Jul 2025285 AMAQI
28th Jul 2025296 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025259 AMAQI
28th Jul 20253810 AMAQI
28th Jul 20254911 AMAQI
28th Jul 20254212 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025372 PMAQI
28th Jul 2025393 PMAQI
28th Jul 2025444 PMAQI
28th Jul 2025415 PMAQI
28th Jul 2025386 PMAQI
28th Jul 2025357 PMAQI
28th Jul 2025288 PMAQI
28th Jul 2025289 PMAQI
28th Jul 20252810 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252612 AMAQI
29th Jul 2025261 AMAQI
29th Jul 2025272 AMAQI
29th Jul 2025283 AMAQI
29th Jul 2025284 AMAQI
26°C23/30°C
29th Jul 2025305 AMAQI
29th Jul 2025296 AMAQI
29th Jul 2025307 AMAQI
29th Jul 2025298 AMAQI
29th Jul 2025309 AMAQI
29th Jul 20254410 AMAQI
29th Jul 20255211 AMAQI
29th Jul 20255212 PMAQI
29th Jul 2025361 PMAQI
29th Jul 2025362 PMAQI
29th Jul 2025453 PMAQI
29th Jul 2025504 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025496 PMAQI
29th Jul 2025417 PMAQI
29th Jul 2025358 PMAQI
29th Jul 2025329 PMAQI
29th Jul 20252710 PMAQI
29th Jul 20252411 PMAQI
30th Jul 20252312 AMAQI
30th Jul 2025241 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025283 AMAQI
30th Jul 2025284 AMAQI
26°C23/30°C
30th Jul 2025315 AMAQI
30th Jul 2025306 AMAQI
30th Jul 2025307 AMAQI
30th Jul 2025308 AMAQI
30th Jul 2025299 AMAQI
30th Jul 20253210 AMAQI
30th Jul 20255211 AMAQI
30th Jul 20255012 PMAQI
30th Jul 2025521 PMAQI
30th Jul 2025502 PMAQI
30th Jul 2025513 PMAQI
30th Jul 2025534 PMAQI
30th Jul 2025555 PMAQI
30th Jul 2025466 PMAQI
30th Jul 2025357 PMAQI
30th Jul 2025418 PMAQI
30th Jul 2025309 PMAQI
30th Jul 20252510 PMAQI
30th Jul 20252311 PMAQI
31st Jul 20252212 AMAQI
31st Jul 2025241 AMAQI
31st Jul 2025272 AMAQI
31st Jul 2025273 AMAQI
31st Jul 2025274 AMAQI
26°C23/31°C
31st Jul 2025275 AMAQI
31st Jul 2025276 AMAQI
31st Jul 2025277 AMAQI
31st Jul 2025278 AMAQI
31st Jul 2025279 AMAQI
31st Jul 20252710 AMAQI
31st Jul 20254011 AMAQI
31st Jul 20254612 PMAQI
31st Jul 2025481 PMAQI
31st Jul 2025482 PMAQI
31st Jul 2025433 PMAQI
31st Jul 2025484 PMAQI
31st Jul 2025465 PMAQI
31st Jul 2025466 PMAQI
31st Jul 2025417 PMAQI
31st Jul 2025358 PMAQI
31st Jul 2025489 PMAQI
31st Jul 20254610 PMAQI
31st Jul 20254011 PMAQI
1st Aug 20253612 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025322 AMAQI
1st Aug 2025333 AMAQI
1st Aug 2025354 AMAQI
26°C23/31°C
1st Aug 2025355 AMAQI
1st Aug 2025376 AMAQI
1st Aug 2025387 AMAQI
1st Aug 2025378 AMAQI
1st Aug 2025409 AMAQI
1st Aug 20254210 AMAQI
1st Aug 20255211 AMAQI
1st Aug 20254212 PMAQI
1st Aug 2025511 PMAQI
1st Aug 2025472 PMAQI
1st Aug 2025533 PMAQI
1st Aug 2025504 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025536 PMAQI
1st Aug 2025507 PMAQI
1st Aug 2025458 PMAQI
1st Aug 2025459 PMAQI
1st Aug 20254110 PMAQI
1st Aug 20254011 PMAQI
2nd Aug 20254312 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025363 AMAQI
2nd Aug 2025364 AMAQI
27°C23/31°C
2nd Aug 2025395 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025419 AMAQI
2nd Aug 20254410 AMAQI
2nd Aug 20254411 AMAQI
2nd Aug 20255012 PMAQI
2nd Aug 2025521 PMAQI
2nd Aug 2025472 PMAQI
2nd Aug 2025513 PMAQI
2nd Aug 2025494 PMAQI
2nd Aug 2025425 PMAQI
2nd Aug 2025386 PMAQI
2nd Aug 2025417 PMAQI
2nd Aug 2025408 PMAQI
2nd Aug 2025409 PMAQI
2nd Aug 20253910 PMAQI
2nd Aug 20254011 PMAQI
3rd Aug 20253812 AMAQI
3rd Aug 2025391 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025404 AMAQI
27°C23/32°C
3rd Aug 2025425 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025417 AMAQI
3rd Aug 2025428 AMAQI
3rd Aug 2025389 AMAQI
3rd Aug 20253210 AMAQI
3rd Aug 20255011 AMAQI
3rd Aug 20254612 PMAQI
3rd Aug 2025471 PMAQI
3rd Aug 2025492 PMAQI
3rd Aug 2025483 PMAQI
3rd Aug 2025464 PMAQI
3rd Aug 2025405 PMAQI
3rd Aug 2025446 PMAQI
3rd Aug 2025467 PMAQI
3rd Aug 2025398 PMAQI
3rd Aug 2025459 PMAQI
3rd Aug 20254310 PMAQI
3rd Aug 20254411 PMAQI
4th Aug 20254712 AMAQI
4th Aug 2025421 AMAQI
4th Aug 2025402 AMAQI
4th Aug 2025403 AMAQI
4th Aug 2025424 AMAQI
27°C24/31°C
4th Aug 2025435 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025437 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025609 AMAQI
4th Aug 20256610 AMAQI
4th Aug 20257311 AMAQI
4th Aug 20257412 PMAQI
4th Aug 2025711 PMAQI
4th Aug 2025722 PMAQI
4th Aug 2025663 PMAQI
4th Aug 2025534 PMAQI
4th Aug 2025565 PMAQI
4th Aug 2025496 PMAQI
4th Aug 2025477 PMAQI
4th Aug 2025518 PMAQI
4th Aug 2025469 PMAQI
4th Aug 20254110 PMAQI
4th Aug 20254511 PMAQI
5th Aug 20254512 AMAQI
5th Aug 2025451 AMAQI
5th Aug 2025422 AMAQI
5th Aug 2025423 AMAQI
5th Aug 2025514 AMAQI
27°C25/30°C
5th Aug 2025525 AMAQI
5th Aug 2025526 AMAQI
5th Aug 2025527 AMAQI
5th Aug 2025538 AMAQI
5th Aug 2025429 AMAQI
5th Aug 20254210 AMAQI
5th Aug 20254411 AMAQI
5th Aug 20254312 PMAQI
5th Aug 2025461 PMAQI
5th Aug 2025462 PMAQI
5th Aug 2025403 PMAQI
5th Aug 2025484 PMAQI
5th Aug 2025425 PMAQI
5th Aug 2025386 PMAQI
5th Aug 2025377 PMAQI
5th Aug 2025458 PMAQI
5th Aug 2025419 PMAQI
5th Aug 20254310 PMAQI
5th Aug 20254211 PMAQI
6th Aug 20254612 AMAQI
6th Aug 2025481 AMAQI
6th Aug 2025502 AMAQI
6th Aug 2025483 AMAQI
6th Aug 2025484 AMAQI
--°C/°C
6th Aug 2025485 AMAQI
5 AM6th Aug 2025486 AMAQI
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
49AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM - 10 AM
43AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 49), while the lowest AQI was between 9 AM to 10 AM (Avg. 43).
Night time
Avg. Highest Time
2 AM - 4 AM
49AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
8 PM
42AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 4 AM (Avg. 49), while the lowest AQI was between 8 PM to 8 PM (Avg. 42).
2025 Days Vs Air Quality
Ozumachi, Iwakuni, Yamaguchi, Japan
2025
70%
151
30%
65
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
151 DaysModerate
65 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 217 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
Ozumachi, Iwakuni, Yamaguchi, 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
28AQI
28AQI
2nd January 2025
32AQI
32AQI
3rd January 2025
30AQI
30AQI
4th January 2025
30AQI
30AQI
5th January 2025
28AQI
28AQI
6th January 2025
38AQI
38AQI
7th January 2025
30AQI
30AQI
8th January 2025
32AQI
32AQI
9th January 2025
29AQI
29AQI
10th January 2025
29AQI
29AQI
11th January 2025
28AQI
28AQI
12th January 2025
30AQI
30AQI
13th January 2025
38AQI
38AQI
14th January 2025
45AQI
45AQI
15th January 2025
37AQI
37AQI
16th January 2025
35AQI
35AQI
17th January 2025
32AQI
32AQI
18th January 2025
30AQI
30AQI
19th January 2025
39AQI
39AQI
20th January 2025
39AQI
39AQI
21st January 2025
48AQI
48AQI
22nd January 2025
58AQI
58AQI
23rd January 2025
68AQI
68AQI
24th January 2025
69AQI
69AQI
25th January 2025
45AQI
45AQI
26th January 2025
42AQI
42AQI
27th January 2025
34AQI
34AQI
28th January 2025
35AQI
35AQI
29th January 2025
31AQI
31AQI
30th January 2025
43AQI
43AQI
31st January 2025
48AQI
48AQI
1st February 2025
53AQI
53AQI
2nd February 2025
35AQI
35AQI
3rd February 2025
43AQI
43AQI
4th February 2025
32AQI
32AQI
5th February 2025
37AQI
37AQI
6th February 2025
31AQI
31AQI
7th February 2025
32AQI
32AQI
8th February 2025
31AQI
31AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
34AQI
34AQI
12th February 2025
33AQI
33AQI
13th February 2025
31AQI
31AQI
14th February 2025
37AQI
37AQI
15th February 2025
31AQI
31AQI
16th February 2025
40AQI
40AQI
17th February 2025
39AQI
39AQI
18th February 2025
34AQI
34AQI
19th February 2025
35AQI
35AQI
20th February 2025
31AQI
31AQI
21st February 2025
32AQI
32AQI
22nd February 2025
35AQI
35AQI
23rd February 2025
34AQI
34AQI
24th February 2025
37AQI
37AQI
25th February 2025
36AQI
36AQI
26th February 2025
42AQI
42AQI
27th February 2025
65AQI
65AQI
28th February 2025
58AQI
58AQI
1st March 2025
69AQI
69AQI
2nd March 2025
75AQI
75AQI
3rd March 2025
47AQI
47AQI
4th March 2025
42AQI
42AQI
5th March 2025
31AQI
31AQI
6th March 2025
37AQI
37AQI
7th March 2025
33AQI
33AQI
8th March 2025
39AQI
39AQI
9th March 2025
39AQI
39AQI
10th March 2025
40AQI
40AQI
11th March 2025
44AQI
44AQI
12th March 2025
50AQI
50AQI
13th March 2025
50AQI
50AQI
14th March 2025
36AQI
36AQI
15th March 2025
36AQI
36AQI
16th March 2025
21AQI
21AQI
17th March 2025
34AQI
34AQI
18th March 2025
30AQI
30AQI
19th March 2025
38AQI
38AQI
20th March 2025
46AQI
46AQI
21st March 2025
53AQI
53AQI
22nd March 2025
64AQI
64AQI
23rd March 2025
66AQI
66AQI
24th March 2025
59AQI
59AQI
25th March 2025
67AQI
67AQI
26th March 2025
72AQI
72AQI
27th March 2025
60AQI
60AQI
28th March 2025
53AQI
53AQI
29th March 2025
47AQI
47AQI
30th March 2025
39AQI
39AQI
31st March 2025
37AQI
37AQI
1st April 2025
38AQI
38AQI
2nd April 2025
32AQI
32AQI
3rd April 2025
25AQI
25AQI
4th April 2025
29AQI
29AQI
5th April 2025
39AQI
39AQI
6th April 2025
39AQI
39AQI
7th April 2025
42AQI
42AQI
8th April 2025
37AQI
37AQI
9th April 2025
57AQI
57AQI
10th April 2025
53AQI
53AQI
11th April 2025
56AQI
56AQI
12th April 2025
54AQI
54AQI
13th April 2025
43AQI
43AQI
14th April 2025
43AQI
43AQI
15th April 2025
29AQI
29AQI
16th April 2025
49AQI
49AQI
17th April 2025
48AQI
48AQI
18th April 2025
57AQI
57AQI
19th April 2025
52AQI
52AQI
20th April 2025
37AQI
37AQI
21st April 2025
38AQI
38AQI
22nd April 2025
48AQI
48AQI
23rd April 2025
33AQI
33AQI
24th April 2025
40AQI
40AQI
25th April 2025
64AQI
64AQI
26th April 2025
56AQI
56AQI
27th April 2025
59AQI
59AQI
28th April 2025
49AQI
49AQI
29th April 2025
48AQI
48AQI
30th April 2025
55AQI
55AQI
1st May 2025
53AQI
53AQI
2nd May 2025
40AQI
40AQI
3rd May 2025
47AQI
47AQI
4th May 2025
39AQI
39AQI
5th May 2025
44AQI
44AQI
6th May 2025
32AQI
32AQI
7th May 2025
34AQI
34AQI
8th May 2025
36AQI
36AQI
9th May 2025
36AQI
36AQI
10th May 2025
34AQI
34AQI
11th May 2025
42AQI
42AQI
12th May 2025
51AQI
51AQI
13th May 2025
56AQI
56AQI
14th May 2025
59AQI
59AQI
15th May 2025
56AQI
56AQI
16th May 2025
56AQI
56AQI
17th May 2025
44AQI
44AQI
18th May 2025
53AQI
53AQI
19th May 2025
58AQI
58AQI
20th May 2025
57AQI
57AQI
21st May 2025
47AQI
47AQI
22nd May 2025
42AQI
42AQI
23rd May 2025
47AQI
47AQI
24th May 2025
37AQI
37AQI
25th May 2025
28AQI
28AQI
26th May 2025
35AQI
35AQI
27th May 2025
41AQI
41AQI
28th May 2025
45AQI
45AQI
29th May 2025
49AQI
49AQI
30th May 2025
45AQI
45AQI
31st May 2025
41AQI
41AQI
1st June 2025
47AQI
47AQI
2nd June 2025
53AQI
53AQI
3rd June 2025
32AQI
32AQI
4th June 2025
43AQI
43AQI
5th June 2025
46AQI
46AQI
6th June 2025
53AQI
53AQI
7th June 2025
61AQI
61AQI
8th June 2025
64AQI
64AQI
9th June 2025
65AQI
65AQI
10th June 2025
37AQI
37AQI
11th June 2025
43AQI
43AQI
12th June 2025
51AQI
51AQI
13th June 2025
50AQI
50AQI
14th June 2025
40AQI
40AQI
15th June 2025
35AQI
35AQI
16th June 2025
36AQI
36AQI
17th June 2025
37AQI
37AQI
18th June 2025
46AQI
46AQI
19th June 2025
49AQI
49AQI
20th June 2025
55AQI
55AQI
21st June 2025
58AQI
58AQI
22nd June 2025
61AQI
61AQI
23rd June 2025
44AQI
44AQI
24th June 2025
48AQI
48AQI
25th June 2025
49AQI
49AQI
26th June 2025
51AQI
51AQI
27th June 2025
55AQI
55AQI
28th June 2025
56AQI
56AQI
29th June 2025
57AQI
57AQI
30th June 2025
56AQI
56AQI
1st July 2025
59AQI
59AQI
2nd July 2025
78AQI
78AQI
3rd July 2025
91AQI
91AQI
4th July 2025
91AQI
91AQI
5th July 2025
85AQI
85AQI
6th July 2025
67AQI
67AQI
7th July 2025
66AQI
66AQI
8th July 2025
71AQI
71AQI
9th July 2025
76AQI
76AQI
10th July 2025
84AQI
84AQI
11th July 2025
68AQI
68AQI
12th July 2025
62AQI
62AQI
13th July 2025
56AQI
56AQI
14th July 2025
42AQI
42AQI
15th July 2025
56AQI
56AQI
16th July 2025
57AQI
57AQI
17th July 2025
51AQI
51AQI
18th July 2025
39AQI
39AQI
19th July 2025
39AQI
39AQI
20th July 2025
38AQI
38AQI
21st July 2025
32AQI
32AQI
22nd July 2025
31AQI
31AQI
23rd July 2025
34AQI
34AQI
24th July 2025
38AQI
38AQI
25th July 2025
36AQI
36AQI
26th July 2025
29AQI
29AQI
27th July 2025
26AQI
26AQI
28th July 2025
32AQI
32AQI
29th July 2025
35AQI
35AQI
30th July 2025
36AQI
36AQI
31st July 2025
36AQI
36AQI
1st August 2025
42AQI
42AQI
2nd August 2025
41AQI
41AQI
3rd August 2025
42AQI
42AQI
4th August 2025
50AQI
50AQI
38AQI
37AQI
47AQI
45AQI
45AQI
49AQI
53AQI
44AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202545AQI
28
3
25
3
21
10
20
10
22
9
16
14
15
16
4
151
65
Highest AQI recorded in
July53AQI
Lowest AQI recorded in
February37AQI
202438AQI
30
1
24
5
24
7
19
11
22
9
26
4
30
1
23
8
24
6
31
29
1
31
313
53
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
December31AQI
202341AQI
25
5
1
28
21
10
16
14
21
10
19
11
26
5
29
2
26
4
26
5
23
6
26
5
286
77
1
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
August32AQI
202240AQI
28
3
19
2
22
9
19
11
13
18
21
9
16
6
1
24
4
27
4
23
7
31
244
73
Highest AQI recorded in
May54AQI
Lowest AQI recorded in
August22AQI
202138AQI
25
6
20
8
24
5
18
3
24
7
12
18
20
11
27
4
25
5
25
6
29
1
31
280
74
Highest AQI recorded in
June52AQI
Lowest AQI recorded in
December29AQI
202036AQI
11
2
16
5
12
6
18
12
28
3
16
7
18
1
26
5
26
4
27
4
198
49
Highest AQI recorded in
June45AQI
Lowest AQI recorded in
September31AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
45AQILeast Polluted Year Recorded
2020(Avg.)
36AQIOzumachi's annual 2025 AQI (45) shows an average percentage change of 16.6% (worsened AQI) compared to previous years: 2020 (36), 2021 (38), 2022 (40), 2023 (41), 2024 (38).
