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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

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

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
15th Aug 2024
60AQI
Lowest AQI recorded on
15th Aug 2023
16AQI

Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 23 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 14th Aug - 15th Aug 2026

Ozumachi, Iwakuni, Yamaguchi, Japan

AQI
Day
Night
.

5 AM14th Aug 2026

7 PM

4 AM15th Aug 2026

Day time
Avg. Highest Time
11AM14th Aug

42AQI

Avg. Lowest Time
6AM14th Aug

33AQI

Night time
Avg. Highest Time
7PM14th Aug

33AQI

Avg. Lowest Time
4AM15th Aug

23AQI

In the last 24 hours,

Ozumachi's AQI reached its highest point of 42 at 11 AM during the Day, while the lowest point, 23, was recorded at 4 AM during the Night between 14th Aug and 15th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Ozumachi, Iwakuni, Yamaguchi, Japan

JulAug
17th - 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 - 13th13th - 14th14th - 15th15th
Day
Night
17th Jul 2026245 AMAQI
17th Jul 2026246 AMAQI
17th Jul 2026227 AMAQI
17th Jul 2026228 AMAQI
17th Jul 2026269 AMAQI
17th Jul 20262410 AMAQI
17th Jul 20262911 AMAQI
17th Jul 20262512 PMAQI
17th Jul 2026271 PMAQI
17th Jul 2026292 PMAQI
17th Jul 2026273 PMAQI
17th Jul 2026564 PMAQI
17th Jul 2026585 PMAQI
17th Jul 2026586 PMAQI
17th Jul 2026607 PMAQI
17th Jul 2026568 PMAQI
17th Jul 2026529 PMAQI
17th Jul 20265610 PMAQI
17th Jul 20265311 PMAQI
18th Jul 20265512 AMAQI
18th Jul 2026521 AMAQI
18th Jul 2026422 AMAQI
18th Jul 2026463 AMAQI
18th Jul 2026504 AMAQI

26°C22/29°C

18th Jul 2026485 AMAQI
18th Jul 2026506 AMAQI
18th Jul 2026467 AMAQI
18th Jul 2026448 AMAQI
18th Jul 2026469 AMAQI
18th Jul 20264410 AMAQI
18th Jul 20264611 AMAQI
18th Jul 20264612 PMAQI
18th Jul 2026511 PMAQI
18th Jul 2026502 PMAQI
18th Jul 2026513 PMAQI
18th Jul 2026644 PMAQI
18th Jul 2026765 PMAQI
18th Jul 2026766 PMAQI
18th Jul 2026767 PMAQI
18th Jul 2026718 PMAQI
18th Jul 2026739 PMAQI
18th Jul 20267110 PMAQI
18th Jul 20266811 PMAQI
19th Jul 20266412 AMAQI
19th Jul 2026601 AMAQI
19th Jul 2026602 AMAQI
19th Jul 2026563 AMAQI
19th Jul 2026574 AMAQI

27°C24/30°C

19th Jul 2026515 AMAQI
19th Jul 2026526 AMAQI
19th Jul 2026537 AMAQI
19th Jul 2026528 AMAQI
19th Jul 2026449 AMAQI
19th Jul 20264610 AMAQI
19th Jul 20265011 AMAQI
19th Jul 20264812 PMAQI
19th Jul 2026471 PMAQI
19th Jul 2026502 PMAQI
19th Jul 2026533 PMAQI
19th Jul 2026564 PMAQI
19th Jul 2026545 PMAQI
19th Jul 2026556 PMAQI
19th Jul 2026557 PMAQI
19th Jul 2026548 PMAQI
19th Jul 2026549 PMAQI
19th Jul 20265510 PMAQI
19th Jul 20265611 PMAQI
20th Jul 20265712 AMAQI
20th Jul 2026601 AMAQI
20th Jul 2026702 AMAQI
20th Jul 2026643 AMAQI
20th Jul 2026524 AMAQI

27°C24/30°C

20th Jul 2026555 AMAQI
20th Jul 2026566 AMAQI
20th Jul 2026537 AMAQI
20th Jul 2026548 AMAQI
20th Jul 2026549 AMAQI
20th Jul 20265710 AMAQI
20th Jul 20266011 AMAQI
20th Jul 20266212 PMAQI
20th Jul 2026561 PMAQI
20th Jul 2026552 PMAQI
20th Jul 2026563 PMAQI
20th Jul 2026544 PMAQI
20th Jul 2026565 PMAQI
20th Jul 2026546 PMAQI
20th Jul 2026537 PMAQI
20th Jul 2026568 PMAQI
20th Jul 2026559 PMAQI
20th Jul 20265210 PMAQI
20th Jul 20265411 PMAQI
21st Jul 20265312 AMAQI
21st Jul 2026531 AMAQI
21st Jul 2026582 AMAQI
21st Jul 2026583 AMAQI
21st Jul 2026564 AMAQI

27°C24/30°C

21st Jul 2026595 AMAQI
21st Jul 2026606 AMAQI
21st Jul 2026607 AMAQI
21st Jul 2026648 AMAQI
21st Jul 2026609 AMAQI
21st Jul 20266210 AMAQI
21st Jul 20267211 AMAQI
21st Jul 2026961 PMAQI
21st Jul 2026932 PMAQI
21st Jul 2026803 PMAQI
21st Jul 2026814 PMAQI
21st Jul 2026485 PMAQI
21st Jul 2026516 PMAQI
21st Jul 2026867 PMAQI
21st Jul 2026688 PMAQI
21st Jul 2026829 PMAQI
21st Jul 20269210 PMAQI
21st Jul 20269211 PMAQI
22nd Jul 20268912 AMAQI
22nd Jul 2026881 AMAQI
22nd Jul 2026842 AMAQI
22nd Jul 2026863 AMAQI
22nd Jul 2026784 AMAQI

27°C24/31°C

22nd Jul 2026705 AMAQI
22nd Jul 2026696 AMAQI
22nd Jul 2026697 AMAQI
22nd Jul 2026718 AMAQI
22nd Jul 2026769 AMAQI
22nd Jul 20267210 AMAQI
22nd Jul 20267611 AMAQI
22nd Jul 20269012 PMAQI
22nd Jul 2026861 PMAQI
22nd Jul 2026702 PMAQI
22nd Jul 2026783 PMAQI
22nd Jul 2026684 PMAQI
22nd Jul 2026645 PMAQI
22nd Jul 2026546 PMAQI
22nd Jul 2026607 PMAQI
22nd Jul 2026578 PMAQI
22nd Jul 2026599 PMAQI
22nd Jul 20266410 PMAQI
22nd Jul 20265811 PMAQI
23rd Jul 20264412 AMAQI
23rd Jul 2026461 AMAQI
23rd Jul 2026362 AMAQI
23rd Jul 2026343 AMAQI
23rd Jul 2026384 AMAQI

27°C24/31°C

23rd Jul 2026295 AMAQI
23rd Jul 2026256 AMAQI
23rd Jul 2026297 AMAQI
23rd Jul 2026278 AMAQI
23rd Jul 2026299 AMAQI
23rd Jul 20263310 AMAQI
23rd Jul 20265211 AMAQI
23rd Jul 20265212 PMAQI
23rd Jul 2026621 PMAQI
23rd Jul 2026672 PMAQI
23rd Jul 2026553 PMAQI
23rd Jul 2026604 PMAQI
23rd Jul 2026625 PMAQI
23rd Jul 2026826 PMAQI
23rd Jul 2026627 PMAQI
23rd Jul 2026688 PMAQI
23rd Jul 2026579 PMAQI
23rd Jul 20265010 PMAQI
23rd Jul 20265111 PMAQI
24th Jul 20263812 AMAQI
24th Jul 2026381 AMAQI
24th Jul 2026382 AMAQI
24th Jul 2026383 AMAQI
24th Jul 2026314 AMAQI

27°C24/32°C

24th Jul 2026295 AMAQI
24th Jul 2026296 AMAQI
24th Jul 2026337 AMAQI
24th Jul 2026338 AMAQI
24th Jul 2026409 AMAQI
24th Jul 20264210 AMAQI
24th Jul 20265711 AMAQI
24th Jul 20267212 PMAQI
24th Jul 2026711 PMAQI
24th Jul 2026732 PMAQI
24th Jul 2026683 PMAQI
24th Jul 2026584 PMAQI
24th Jul 2026575 PMAQI
24th Jul 2026626 PMAQI
24th Jul 2026657 PMAQI
24th Jul 2026538 PMAQI
24th Jul 2026499 PMAQI
24th Jul 20265010 PMAQI
24th Jul 20265911 PMAQI
25th Jul 20265312 AMAQI
25th Jul 2026491 AMAQI
25th Jul 2026502 AMAQI
25th Jul 2026363 AMAQI
25th Jul 2026384 AMAQI

27°C23/31°C

25th Jul 2026365 AMAQI
25th Jul 2026386 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026368 AMAQI
25th Jul 2026319 AMAQI
25th Jul 20263610 AMAQI
25th Jul 20265811 AMAQI
25th Jul 20265312 PMAQI
25th Jul 2026571 PMAQI
25th Jul 2026482 PMAQI
25th Jul 2026483 PMAQI
25th Jul 2026504 PMAQI
25th Jul 2026505 PMAQI
25th Jul 2026466 PMAQI
25th Jul 2026517 PMAQI
25th Jul 2026488 PMAQI
25th Jul 2026509 PMAQI
25th Jul 20264410 PMAQI
25th Jul 20264811 PMAQI
26th Jul 20264412 AMAQI
26th Jul 2026271 AMAQI
26th Jul 2026252 AMAQI
26th Jul 2026253 AMAQI
26th Jul 2026234 AMAQI

28°C24/32°C

26th Jul 2026215 AMAQI
26th Jul 2026236 AMAQI
26th Jul 2026217 AMAQI
26th Jul 2026238 AMAQI
26th Jul 2026219 AMAQI
26th Jul 20262110 AMAQI
26th Jul 20262511 AMAQI
26th Jul 20264212 PMAQI
26th Jul 2026311 PMAQI
26th Jul 2026292 PMAQI
26th Jul 2026293 PMAQI
26th Jul 2026294 PMAQI
26th Jul 2026315 PMAQI
26th Jul 2026336 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026338 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20263810 PMAQI
26th Jul 20263811 PMAQI
27th Jul 20264212 AMAQI
27th Jul 2026381 AMAQI
27th Jul 2026442 AMAQI
27th Jul 2026403 AMAQI
27th Jul 2026344 AMAQI

27°C24/31°C

27th Jul 2026315 AMAQI
27th Jul 2026316 AMAQI
27th Jul 2026337 AMAQI
27th Jul 2026298 AMAQI
27th Jul 2026319 AMAQI
27th Jul 20263110 AMAQI
27th Jul 20264011 AMAQI
27th Jul 20264412 PMAQI
27th Jul 2026441 PMAQI
27th Jul 2026422 PMAQI
27th Jul 2026463 PMAQI
27th Jul 2026444 PMAQI
27th Jul 2026485 PMAQI
27th Jul 2026486 PMAQI
27th Jul 2026537 PMAQI
27th Jul 2026538 PMAQI
27th Jul 2026559 PMAQI
27th Jul 20265210 PMAQI
27th Jul 20265211 PMAQI
28th Jul 20265212 AMAQI
28th Jul 2026521 AMAQI
28th Jul 2026482 AMAQI
28th Jul 2026443 AMAQI
28th Jul 2026464 AMAQI

28°C24/32°C

28th Jul 2026425 AMAQI
28th Jul 2026426 AMAQI
28th Jul 2026447 AMAQI
28th Jul 2026388 AMAQI
28th Jul 2026389 AMAQI
28th Jul 20263610 AMAQI
28th Jul 20263111 AMAQI
28th Jul 20263112 PMAQI
28th Jul 2026331 PMAQI
28th Jul 2026292 PMAQI
28th Jul 2026313 PMAQI
28th Jul 2026314 PMAQI
28th Jul 2026275 PMAQI
28th Jul 2026276 PMAQI
28th Jul 2026257 PMAQI
28th Jul 2026258 PMAQI
28th Jul 2026259 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20262711 PMAQI
29th Jul 20262912 AMAQI
29th Jul 2026311 AMAQI
29th Jul 2026272 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026254 AMAQI

28°C23/34°C

29th Jul 2026295 AMAQI
29th Jul 2026296 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026238 AMAQI
29th Jul 2026219 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20262511 AMAQI
29th Jul 20262912 PMAQI
29th Jul 2026331 PMAQI
29th Jul 2026362 PMAQI
29th Jul 2026363 PMAQI
29th Jul 2026384 PMAQI
29th Jul 2026365 PMAQI
29th Jul 2026366 PMAQI
29th Jul 2026367 PMAQI
29th Jul 2026338 PMAQI
29th Jul 2026389 PMAQI
29th Jul 20263810 PMAQI
29th Jul 20264211 PMAQI
30th Jul 20264012 AMAQI
30th Jul 2026381 AMAQI
30th Jul 2026362 AMAQI
30th Jul 2026333 AMAQI
30th Jul 2026334 AMAQI

25°C22/29°C

30th Jul 2026365 AMAQI
30th Jul 2026336 AMAQI
30th Jul 2026337 AMAQI
30th Jul 2026338 AMAQI
30th Jul 2026369 AMAQI
30th Jul 20262910 AMAQI
30th Jul 20263411 AMAQI
30th Jul 20263612 PMAQI
30th Jul 2026381 PMAQI
30th Jul 2026332 PMAQI
30th Jul 2026333 PMAQI
30th Jul 2026334 PMAQI
30th Jul 2026335 PMAQI
30th Jul 2026336 PMAQI
30th Jul 2026337 PMAQI
30th Jul 2026298 PMAQI
30th Jul 2026299 PMAQI
30th Jul 20262910 PMAQI
30th Jul 20262711 PMAQI
31st Jul 20262512 AMAQI
31st Jul 2026251 AMAQI
31st Jul 2026272 AMAQI
31st Jul 2026273 AMAQI
31st Jul 2026274 AMAQI

27°C24/32°C

31st Jul 2026255 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026257 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026259 AMAQI
31st Jul 20262510 AMAQI
31st Jul 20262711 AMAQI
31st Jul 20262512 PMAQI
31st Jul 2026271 PMAQI
31st Jul 2026272 PMAQI
31st Jul 2026273 PMAQI
31st Jul 2026294 PMAQI
31st Jul 2026295 PMAQI
31st Jul 2026296 PMAQI
31st Jul 2026367 PMAQI
31st Jul 2026408 PMAQI
31st Jul 2026369 PMAQI
31st Jul 20263810 PMAQI
31st Jul 20263811 PMAQI
1st Aug 20263812 AMAQI
1st Aug 2026421 AMAQI
1st Aug 2026362 AMAQI
1st Aug 2026363 AMAQI
1st Aug 2026364 AMAQI

26°C22/31°C

1st Aug 2026335 AMAQI
1st Aug 2026366 AMAQI
1st Aug 2026367 AMAQI
1st Aug 2026368 AMAQI
1st Aug 2026339 AMAQI
1st Aug 20263310 AMAQI
1st Aug 20263311 AMAQI
1st Aug 20264012 PMAQI
1st Aug 2026401 PMAQI
1st Aug 2026382 PMAQI
1st Aug 2026383 PMAQI
1st Aug 2026404 PMAQI
1st Aug 2026445 PMAQI
1st Aug 2026446 PMAQI
1st Aug 2026487 PMAQI
1st Aug 2026468 PMAQI
1st Aug 2026429 PMAQI
1st Aug 20264210 PMAQI
1st Aug 20264211 PMAQI
2nd Aug 20263812 AMAQI
2nd Aug 2026291 AMAQI
2nd Aug 2026402 AMAQI
2nd Aug 2026403 AMAQI
2nd Aug 2026404 AMAQI

27°C23/33°C

2nd Aug 2026385 AMAQI
2nd Aug 2026426 AMAQI
2nd Aug 2026387 AMAQI
2nd Aug 2026388 AMAQI
2nd Aug 2026369 AMAQI
2nd Aug 20263610 AMAQI
2nd Aug 20264011 AMAQI
2nd Aug 20264612 PMAQI
2nd Aug 2026461 PMAQI
2nd Aug 2026422 PMAQI
2nd Aug 2026423 PMAQI
2nd Aug 2026464 PMAQI
2nd Aug 2026385 PMAQI
2nd Aug 2026426 PMAQI
2nd Aug 2026467 PMAQI
2nd Aug 2026508 PMAQI
2nd Aug 2026489 PMAQI
2nd Aug 20264810 PMAQI
2nd Aug 20264811 PMAQI
3rd Aug 20265012 AMAQI
3rd Aug 2026481 AMAQI
3rd Aug 2026512 AMAQI
3rd Aug 2026523 AMAQI
3rd Aug 2026404 AMAQI

28°C24/33°C

3rd Aug 2026385 AMAQI
3rd Aug 2026386 AMAQI
3rd Aug 2026407 AMAQI
3rd Aug 2026408 AMAQI
3rd Aug 2026389 AMAQI
3rd Aug 20264010 AMAQI
3rd Aug 20264411 AMAQI
3rd Aug 20264812 PMAQI
3rd Aug 2026461 PMAQI
3rd Aug 2026492 PMAQI
3rd Aug 2026503 PMAQI
3rd Aug 2026524 PMAQI
3rd Aug 2026545 PMAQI
3rd Aug 2026536 PMAQI
3rd Aug 2026517 PMAQI
3rd Aug 2026508 PMAQI
3rd Aug 2026529 PMAQI
3rd Aug 20265310 PMAQI
3rd Aug 20266011 PMAQI
4th Aug 20265412 AMAQI
4th Aug 2026501 AMAQI
4th Aug 2026542 AMAQI
4th Aug 2026523 AMAQI
4th Aug 2026534 AMAQI

28°C25/31°C

4th Aug 2026525 AMAQI
4th Aug 2026506 AMAQI
4th Aug 2026527 AMAQI
4th Aug 2026508 AMAQI
4th Aug 2026509 AMAQI
4th Aug 20264810 AMAQI
4th Aug 20265111 AMAQI
4th Aug 20264812 PMAQI
4th Aug 2026461 PMAQI
4th Aug 2026422 PMAQI
4th Aug 2026513 PMAQI
4th Aug 2026534 PMAQI
4th Aug 2026535 PMAQI
4th Aug 2026556 PMAQI
4th Aug 2026527 PMAQI
4th Aug 2026528 PMAQI
4th Aug 2026539 PMAQI
4th Aug 20265310 PMAQI
4th Aug 20265511 PMAQI
5th Aug 20264512 AMAQI
5th Aug 2026541 AMAQI
5th Aug 2026472 AMAQI
5th Aug 2026443 AMAQI
5th Aug 2026464 AMAQI

28°C25/30°C

5th Aug 2026485 AMAQI
5th Aug 2026466 AMAQI
5th Aug 2026487 AMAQI
5th Aug 2026428 AMAQI
5th Aug 2026449 AMAQI
5th Aug 20264010 AMAQI
5th Aug 20263611 AMAQI
5th Aug 20263312 PMAQI
5th Aug 2026381 PMAQI
5th Aug 2026402 PMAQI
5th Aug 2026403 PMAQI
5th Aug 2026444 PMAQI
5th Aug 2026465 PMAQI
5th Aug 2026486 PMAQI
5th Aug 2026447 PMAQI
5th Aug 2026428 PMAQI
5th Aug 2026429 PMAQI
5th Aug 20264410 PMAQI
5th Aug 20264811 PMAQI
6th Aug 20264612 AMAQI
6th Aug 2026421 AMAQI
6th Aug 2026402 AMAQI
6th Aug 2026463 AMAQI
6th Aug 2026484 AMAQI

27°C24/30°C

6th Aug 2026465 AMAQI
6th Aug 2026486 AMAQI
6th Aug 2026467 AMAQI
6th Aug 2026468 AMAQI
6th Aug 2026469 AMAQI
6th Aug 20264210 AMAQI
6th Aug 20264011 AMAQI
6th Aug 20263412 PMAQI
6th Aug 2026251 PMAQI
6th Aug 2026272 PMAQI
6th Aug 2026383 PMAQI
6th Aug 2026404 PMAQI
6th Aug 2026295 PMAQI
6th Aug 2026276 PMAQI
6th Aug 2026257 PMAQI
6th Aug 2026258 PMAQI
6th Aug 2026259 PMAQI
6th Aug 20262510 PMAQI
6th Aug 20262511 PMAQI
7th Aug 20262312 AMAQI
7th Aug 2026251 AMAQI
7th Aug 2026232 AMAQI
7th Aug 2026213 AMAQI
7th Aug 2026214 AMAQI

27°C24/31°C

7th Aug 2026215 AMAQI
7th Aug 2026216 AMAQI
7th Aug 2026217 AMAQI
7th Aug 2026218 AMAQI
7th Aug 2026219 AMAQI
7th Aug 20262110 AMAQI
7th Aug 20262111 AMAQI
7th Aug 20262712 PMAQI
7th Aug 2026341 PMAQI
7th Aug 2026322 PMAQI
7th Aug 2026233 PMAQI
7th Aug 2026214 PMAQI
7th Aug 2026485 PMAQI
7th Aug 2026256 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026238 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20262510 PMAQI
7th Aug 20262111 PMAQI
8th Aug 20262112 AMAQI
8th Aug 2026211 AMAQI
8th Aug 2026212 AMAQI
8th Aug 2026213 AMAQI
8th Aug 2026294 AMAQI

27°C25/30°C

8th Aug 2026295 AMAQI
8th Aug 2026296 AMAQI
8th Aug 2026257 AMAQI
8th Aug 2026258 AMAQI
8th Aug 2026219 AMAQI
8th Aug 20262710 AMAQI
8th Aug 20262311 AMAQI
8th Aug 20262712 PMAQI
8th Aug 2026211 PMAQI
8th Aug 2026212 PMAQI
8th Aug 2026213 PMAQI
8th Aug 2026254 PMAQI
8th Aug 2026215 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026258 PMAQI
8th Aug 2026219 PMAQI
8th Aug 20262510 PMAQI
8th Aug 20262511 PMAQI
9th Aug 20262112 AMAQI
9th Aug 2026291 AMAQI
9th Aug 2026272 AMAQI
9th Aug 2026273 AMAQI
9th Aug 2026234 AMAQI

27°C25/30°C

9th Aug 2026255 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026217 AMAQI
9th Aug 2026238 AMAQI
9th Aug 2026219 AMAQI
9th Aug 20262110 AMAQI
9th Aug 20262511 AMAQI
9th Aug 20262512 PMAQI
9th Aug 2026271 PMAQI
9th Aug 2026292 PMAQI
9th Aug 2026313 PMAQI
9th Aug 2026294 PMAQI
9th Aug 2026315 PMAQI
9th Aug 2026366 PMAQI
9th Aug 2026367 PMAQI
9th Aug 2026428 PMAQI
9th Aug 2026449 PMAQI
9th Aug 20264210 PMAQI
9th Aug 20264011 PMAQI
10th Aug 20264012 AMAQI
10th Aug 2026441 AMAQI
10th Aug 2026402 AMAQI
10th Aug 2026463 AMAQI
10th Aug 2026444 AMAQI

27°C24/30°C

10th Aug 2026445 AMAQI
10th Aug 2026406 AMAQI
10th Aug 2026407 AMAQI
10th Aug 2026408 AMAQI
10th Aug 2026389 AMAQI
10th Aug 20264010 AMAQI
10th Aug 20264011 AMAQI
10th Aug 20263112 PMAQI
10th Aug 2026271 PMAQI
10th Aug 2026332 PMAQI
10th Aug 2026403 PMAQI
10th Aug 2026384 PMAQI
10th Aug 2026335 PMAQI
10th Aug 2026366 PMAQI
10th Aug 2026387 PMAQI
10th Aug 2026388 PMAQI
10th Aug 2026339 PMAQI
10th Aug 20263310 PMAQI
10th Aug 20263311 PMAQI
11th Aug 20263112 AMAQI
11th Aug 2026311 AMAQI
11th Aug 2026292 AMAQI
11th Aug 2026293 AMAQI
11th Aug 2026294 AMAQI

27°C24/30°C

11th Aug 2026315 AMAQI
11th Aug 2026296 AMAQI
11th Aug 2026257 AMAQI
11th Aug 2026258 AMAQI
11th Aug 2026259 AMAQI
11th Aug 20262510 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262312 PMAQI
11th Aug 2026231 PMAQI
11th Aug 2026232 PMAQI
11th Aug 2026253 PMAQI
11th Aug 2026254 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026236 PMAQI
11th Aug 2026217 PMAQI
11th Aug 2026258 PMAQI
11th Aug 2026239 PMAQI
11th Aug 20262110 PMAQI
11th Aug 20262111 PMAQI
12th Aug 20262112 AMAQI
12th Aug 2026231 AMAQI
12th Aug 2026232 AMAQI
12th Aug 2026213 AMAQI
12th Aug 2026214 AMAQI

25°C21/30°C

12th Aug 2026215 AMAQI
12th Aug 2026216 AMAQI
12th Aug 2026217 AMAQI
12th Aug 2026218 AMAQI
12th Aug 2026219 AMAQI
12th Aug 20262110 AMAQI
12th Aug 20262111 AMAQI
12th Aug 20262312 PMAQI
12th Aug 2026231 PMAQI
12th Aug 2026232 PMAQI
12th Aug 2026233 PMAQI
12th Aug 2026214 PMAQI
12th Aug 2026235 PMAQI
12th Aug 2026216 PMAQI
12th Aug 2026237 PMAQI
12th Aug 2026258 PMAQI
12th Aug 2026259 PMAQI
12th Aug 20262310 PMAQI
12th Aug 20262311 PMAQI
13th Aug 20262112 AMAQI
13th Aug 2026211 AMAQI
13th Aug 2026212 AMAQI
13th Aug 2026233 AMAQI
13th Aug 2026214 AMAQI

24°C20/30°C

13th Aug 2026215 AMAQI
13th Aug 2026216 AMAQI
13th Aug 2026237 AMAQI
13th Aug 2026218 AMAQI
13th Aug 2026219 AMAQI
13th Aug 20262310 AMAQI
13th Aug 20262311 AMAQI
13th Aug 20262512 PMAQI
13th Aug 2026251 PMAQI
13th Aug 2026232 PMAQI
13th Aug 2026253 PMAQI
13th Aug 2026254 PMAQI
13th Aug 2026275 PMAQI
13th Aug 2026296 PMAQI
13th Aug 2026297 PMAQI
13th Aug 2026298 PMAQI
13th Aug 2026299 PMAQI
13th Aug 20263310 PMAQI
13th Aug 20263611 PMAQI
14th Aug 20263312 AMAQI
14th Aug 2026361 AMAQI
14th Aug 2026362 AMAQI
14th Aug 2026363 AMAQI
14th Aug 2026384 AMAQI

25°C23/29°C

14th Aug 2026365 AMAQI
14th Aug 2026336 AMAQI
14th Aug 2026407 AMAQI
14th Aug 2026408 AMAQI
14th Aug 2026389 AMAQI
14th Aug 20263810 AMAQI
14th Aug 20264211 AMAQI
14th Aug 20264212 PMAQI
14th Aug 2026381 PMAQI
14th Aug 2026422 PMAQI
14th Aug 2026423 PMAQI
14th Aug 2026424 PMAQI
14th Aug 2026405 PMAQI
14th Aug 2026386 PMAQI
14th Aug 2026337 PMAQI
14th Aug 2026318 PMAQI
14th Aug 2026339 PMAQI
14th Aug 20263110 PMAQI
14th Aug 20262911 PMAQI
15th Aug 20262912 AMAQI
15th Aug 2026231 AMAQI
15th Aug 2026252 AMAQI
15th Aug 2026253 AMAQI
15th Aug 2026234 AMAQI

25°C23/29°C

15th Aug 2026235 AMAQI
5 AM
15th Aug 2026236 AMAQI
15th Aug 2026217 AMAQI
15th Aug 2026218 AMAQI
15th Aug 2026219 AMAQI
15th Aug 20262110 AMAQI
15th Aug 20262111 AMAQI
15th Aug 20262112 PMAQI
12 PM
15th Aug 2026211 PMAQI
15th Aug 2026252 PMAQI
15th Aug 2026233 PMAQI
15th Aug 2026254 PMAQI
15th Aug 2026255 PMAQI
15th Aug 2026296 PMAQI
15th Aug 2026257 PMAQI
7 PM
15th Aug 2026218 PMAQI
15th Aug 2026219 PMAQI
15th Aug 20262110 PMAQI
15th Aug 20262311 PMAQI
12 AM
4 AM

25°C23/29°C

Day time
Avg. Highest Time
4 PM - 7 PM

43AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
5 AM - 10 AM

36AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 PM to 7 PM (Avg. 43), while the lowest AQI was between 5 AM to 10 AM (Avg. 36).
Night time
Avg. Highest Time
8 PM - 11 PM

42AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 4 AM

40AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 42), while the lowest AQI was between 12 AM to 4 AM (Avg. 40).

2026 Days Vs Air Quality

Ozumachi, Iwakuni, Yamaguchi, Japan

2026

84%

191

16%

36

Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)

Good
191 Days
Moderate
36 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 84%

Health Risk Level:

Low

In 2026, 84% of 227 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 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
25AQI (US)
2nd January 2026
22AQI (US)
3rd January 2026
26AQI (US)
4th January 2026
39AQI (US)
5th January 2026
47AQI (US)
6th January 2026
31AQI (US)
7th January 2026
33AQI (US)
8th January 2026
35AQI (US)
9th January 2026
22AQI (US)
10th January 2026
35AQI (US)
11th January 2026
28AQI (US)
12th January 2026
25AQI (US)
13th January 2026
34AQI (US)
14th January 2026
26AQI (US)
15th January 2026
43AQI (US)
16th January 2026
64AQI (US)
17th January 2026
66AQI (US)
18th January 2026
66AQI (US)
19th January 2026
70AQI (US)
20th January 2026
26AQI (US)
21st January 2026
11AQI (US)
22nd January 2026
21AQI (US)
23rd January 2026
35AQI (US)
24th January 2026
49AQI (US)
25th January 2026
17AQI (US)
26th January 2026
20AQI (US)
27th January 2026
41AQI (US)
28th January 2026
31AQI (US)
29th January 2026
33AQI (US)
30th January 2026
26AQI (US)
31st January 2026
21AQI (US)
1st February 2026
43AQI (US)
2nd February 2026
43AQI (US)
3rd February 2026
30AQI (US)
4th February 2026
37AQI (US)
5th February 2026
47AQI (US)
6th February 2026
46AQI (US)
7th February 2026
26AQI (US)
8th February 2026
27AQI (US)
9th February 2026
36AQI (US)
10th February 2026
42AQI (US)
11th February 2026
21AQI (US)
12th February 2026
36AQI (US)
13th February 2026
54AQI (US)
14th February 2026
62AQI (US)
15th February 2026
47AQI (US)
16th February 2026
62AQI (US)
17th February 2026
24AQI (US)
18th February 2026
28AQI (US)
19th February 2026
48AQI (US)
20th February 2026
42AQI (US)
21st February 2026
64AQI (US)
22nd February 2026
45AQI (US)
23rd February 2026
46AQI (US)
24th February 2026
33AQI (US)
25th February 2026
23AQI (US)
26th February 2026
12AQI (US)
27th February 2026
49AQI (US)
28th February 2026
33AQI (US)
1st March 2026
38AQI (US)
2nd March 2026
58AQI (US)
3rd March 2026
37AQI (US)
4th March 2026
44AQI (US)
5th March 2026
48AQI (US)
6th March 2026
49AQI (US)
7th March 2026
45AQI (US)
8th March 2026
36AQI (US)
9th March 2026
43AQI (US)
10th March 2026
57AQI (US)
11th March 2026
54AQI (US)
12th March 2026
58AQI (US)
13th March 2026
37AQI (US)
14th March 2026
42AQI (US)
15th March 2026
59AQI (US)
16th March 2026
51AQI (US)
17th March 2026
44AQI (US)
18th March 2026
49AQI (US)
19th March 2026
48AQI (US)
20th March 2026
53AQI (US)
21st March 2026
42AQI (US)
22nd March 2026
48AQI (US)
23rd March 2026
35AQI (US)
24th March 2026
47AQI (US)
25th March 2026
60AQI (US)
26th March 2026
33AQI (US)
27th March 2026
48AQI (US)
28th March 2026
71AQI (US)
29th March 2026
75AQI (US)
30th March 2026
66AQI (US)
31st March 2026
18AQI (US)
1st April 2026
11AQI (US)
2nd April 2026
52AQI (US)
3rd April 2026
47AQI (US)
4th April 2026
44AQI (US)
5th April 2026
39AQI (US)
6th April 2026
48AQI (US)
7th April 2026
23AQI (US)
8th April 2026
23AQI (US)
9th April 2026
32AQI (US)
10th April 2026
45AQI (US)
11th April 2026
31AQI (US)
12th April 2026
33AQI (US)
13th April 2026
37AQI (US)
14th April 2026
40AQI (US)
15th April 2026
27AQI (US)
16th April 2026
20AQI (US)
17th April 2026
34AQI (US)
18th April 2026
30AQI (US)
19th April 2026
32AQI (US)
20th April 2026
35AQI (US)
21st April 2026
38AQI (US)
22nd April 2026
45AQI (US)
23rd April 2026
34AQI (US)
24th April 2026
28AQI (US)
25th April 2026
46AQI (US)
26th April 2026
49AQI (US)
27th April 2026
50AQI (US)
28th April 2026
48AQI (US)
29th April 2026
43AQI (US)
30th April 2026
27AQI (US)
1st May 2026
48AQI (US)
2nd May 2026
52AQI (US)
3rd May 2026
35AQI (US)
4th May 2026
23AQI (US)
5th May 2026
24AQI (US)
6th May 2026
28AQI (US)
7th May 2026
30AQI (US)
8th May 2026
26AQI (US)
9th May 2026
27AQI (US)
10th May 2026
30AQI (US)
11th May 2026
31AQI (US)
12th May 2026
29AQI (US)
13th May 2026
37AQI (US)
14th May 2026
29AQI (US)
15th May 2026
32AQI (US)
16th May 2026
77AQI (US)
17th May 2026
63AQI (US)
18th May 2026
53AQI (US)
19th May 2026
46AQI (US)
20th May 2026
60AQI (US)
21st May 2026
65AQI (US)
22nd May 2026
68AQI (US)
23rd May 2026
61AQI (US)
24th May 2026
63AQI (US)
25th May 2026
54AQI (US)
26th May 2026
40AQI (US)
27th May 2026
24AQI (US)
28th May 2026
25AQI (US)
29th May 2026
21AQI (US)
30th May 2026
23AQI (US)
31st May 2026
27AQI (US)
1st June 2026
28AQI (US)
2nd June 2026
20AQI (US)
3rd June 2026
16AQI (US)
4th June 2026
25AQI (US)
5th June 2026
22AQI (US)
6th June 2026
24AQI (US)
7th June 2026
18AQI (US)
8th June 2026
11AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
21AQI (US)
12th June 2026
19AQI (US)
13th June 2026
25AQI (US)
14th June 2026
35AQI (US)
15th June 2026
50AQI (US)
16th June 2026
32AQI (US)
17th June 2026
25AQI (US)
18th June 2026
28AQI (US)
19th June 2026
48AQI (US)
20th June 2026
26AQI (US)
21st June 2026
14AQI (US)
22nd June 2026
14AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
21AQI (US)
25th June 2026
26AQI (US)
26th June 2026
29AQI (US)
27th June 2026
26AQI (US)
28th June 2026
29AQI (US)
29th June 2026
26AQI (US)
30th June 2026
38AQI (US)
1st July 2026
34AQI (US)
2nd July 2026
13AQI (US)
3rd July 2026
17AQI (US)
4th July 2026
24AQI (US)
5th July 2026
15AQI (US)
6th July 2026
10AQI (US)
7th July 2026
19AQI (US)
8th July 2026
13AQI (US)
9th July 2026
15AQI (US)
10th July 2026
26AQI (US)
11th July 2026
27AQI (US)
12th July 2026
26AQI (US)
13th July 2026
27AQI (US)
14th July 2026
27AQI (US)
15th July 2026
25AQI (US)
16th July 2026
23AQI (US)
17th July 2026
36AQI (US)
18th July 2026
56AQI (US)
19th July 2026
53AQI (US)
20th July 2026
56AQI (US)
21st July 2026
69AQI (US)
22nd July 2026
72AQI (US)
23rd July 2026
48AQI (US)
24th July 2026
49AQI (US)
25th July 2026
45AQI (US)
26th July 2026
29AQI (US)
27th July 2026
42AQI (US)
28th July 2026
35AQI (US)
29th July 2026
31AQI (US)
30th July 2026
33AQI (US)
31st July 2026
29AQI (US)
1st August 2026
39AQI (US)
2nd August 2026
42AQI (US)
3rd August 2026
47AQI (US)
4th August 2026
51AQI (US)
5th August 2026
44AQI (US)
6th August 2026
37AQI (US)
7th August 2026
25AQI (US)
8th August 2026
24AQI (US)
9th August 2026
29AQI (US)
10th August 2026
38AQI (US)
11th August 2026
26AQI (US)
12th August 2026
22AQI (US)
13th August 2026
25AQI (US)
14th August 2026
37AQI (US)
15th August 2026
23AQI (US)
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

34AQI (US)

40AQI (US)

48AQI (US)

36AQI (US)

40AQI (US)

25AQI (US)

33AQI (US)

34AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202637AQI (US)

27
4
24
4
20
11
29
1
21
10
30
26
5
14
1
191
36

Highest AQI (US) recorded in

March

48AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202545AQI (US)

28
3
25
3
21
10
20
10
22
9
16
14
15
16
30
1
30
15
16
12
18
18
13
252
113

Highest AQI (US) recorded in

July

53AQI (US)

Lowest AQI (US) recorded in

September

31AQI (US)

202438AQI (US)

29
1
24
5
24
7
19
11
22
9
26
4
30
1
23
8
24
6
31
29
1
31
312
53

Highest AQI (US) recorded in

April

49AQI (US)

Lowest AQI (US) recorded in

December

31AQI (US)

202341AQI (US)

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 (US) recorded in

April

50AQI (US)

Lowest AQI (US) recorded in

August

32AQI (US)

202240AQI (US)

27
3
19
2
22
9
19
11
13
18
21
9
16
6
1
24
4
27
4
23
7
31
243
73

Highest AQI (US) recorded in

May

54AQI (US)

Lowest AQI (US) recorded in

August

22AQI (US)

202138AQI (US)

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 (US) recorded in

June

52AQI (US)

Lowest AQI (US) recorded in

December

29AQI (US)

202036AQI (US)

11
2
16
5
12
6
18
12
28
3
16
7
18
1
26
5
26
4
27
4
198
49

Highest AQI (US) recorded in

June

45AQI (US)

Lowest AQI (US) recorded in

December

31AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
45AQI (US)
Least Polluted Year Recorded
2020(Avg.)
36AQI (US)

Ozumachi's annual 2026 AQI (US) (37) shows an average percentage change of -6.2% (improved AQI (US)) compared to previous years: 2020 (36), 2021 (38), 2022 (40), 2023 (41), 2024 (38), 2025 (45).