Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Hofu, 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

Hofu, Yamaguchi, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2021
80AQI
Lowest AQI recorded on
16th Aug 2023
16AQI

Same Day Analysis (2nd 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

Globe

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025

Hofu, Yamaguchi, Japan

AQI
Day
Night
.

5 AM3rd Aug 2025

7 PM

4 AM4th Aug 2025

Day time
Avg. Highest Time
12PM3rd Aug

56AQI

Avg. Lowest Time
10AM3rd Aug

41AQI

Night time
Avg. Highest Time
9PM3rd Aug

51AQI

Avg. Lowest Time
3AM4th Aug

40AQI

In the last 24 hours,

Hofu's AQI reached its highest point of 56 at 12 PM during the Day, while the lowest point, 40, was recorded at 3 AM during the Night between 3rd Aug and 4th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Hofu, Yamaguchi, 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 2025825 AMAQI
5th Jul 2025836 AMAQI
5th Jul 2025837 AMAQI
5th Jul 2025828 AMAQI
5th Jul 2025849 AMAQI
5th Jul 20258410 AMAQI
5th Jul 20258511 AMAQI
5th Jul 20258012 PMAQI
5th Jul 2025831 PMAQI
5th Jul 2025792 PMAQI
5th Jul 2025753 PMAQI
5th Jul 2025744 PMAQI
5th Jul 2025755 PMAQI
5th Jul 2025796 PMAQI
5th Jul 2025797 PMAQI
5th Jul 2025788 PMAQI
5th Jul 2025809 PMAQI
5th Jul 20257810 PMAQI
5th Jul 20257911 PMAQI
6th Jul 20257712 AMAQI
6th Jul 2025801 AMAQI
6th Jul 2025862 AMAQI
6th Jul 2025853 AMAQI
6th Jul 2025864 AMAQI

26°C23/30°C

6th Jul 2025855 AMAQI
6th Jul 2025826 AMAQI
6th Jul 2025827 AMAQI
6th Jul 2025838 AMAQI
6th Jul 2025629 AMAQI
6th Jul 20253810 AMAQI
6th Jul 20253211 AMAQI
6th Jul 20253712 PMAQI
6th Jul 2025571 PMAQI
6th Jul 2025542 PMAQI
6th Jul 2025553 PMAQI
6th Jul 2025554 PMAQI
6th Jul 2025565 PMAQI
6th Jul 2025556 PMAQI
6th Jul 2025557 PMAQI
6th Jul 2025598 PMAQI
6th Jul 2025749 PMAQI
6th Jul 20257310 PMAQI
6th Jul 20257411 PMAQI
7th Jul 20257212 AMAQI
7th Jul 2025721 AMAQI
7th Jul 2025832 AMAQI
7th Jul 2025823 AMAQI
7th Jul 2025824 AMAQI

26°C23/30°C

7th Jul 2025805 AMAQI
7th Jul 2025806 AMAQI
7th Jul 2025807 AMAQI
7th Jul 2025808 AMAQI
7th Jul 2025489 AMAQI
7th Jul 20253710 AMAQI
7th Jul 20254011 AMAQI
7th Jul 20254112 PMAQI
7th Jul 2025561 PMAQI
7th Jul 2025552 PMAQI
7th Jul 2025573 PMAQI
7th Jul 2025564 PMAQI
7th Jul 2025595 PMAQI
7th Jul 2025626 PMAQI
7th Jul 2025627 PMAQI
7th Jul 2025628 PMAQI
7th Jul 2025699 PMAQI
7th Jul 20257010 PMAQI
7th Jul 20256911 PMAQI
8th Jul 20256912 AMAQI
8th Jul 2025721 AMAQI
8th Jul 2025782 AMAQI
8th Jul 2025763 AMAQI
8th Jul 2025774 AMAQI

26°C24/29°C

8th Jul 2025735 AMAQI
8th Jul 2025736 AMAQI
8th Jul 2025737 AMAQI
8th Jul 2025748 AMAQI
8th Jul 2025639 AMAQI
8th Jul 20256110 AMAQI
8th Jul 20256111 AMAQI
8th Jul 20256612 PMAQI
8th Jul 2025681 PMAQI
8th Jul 2025682 PMAQI
8th Jul 2025683 PMAQI
8th Jul 2025654 PMAQI
8th Jul 2025625 PMAQI
8th Jul 2025626 PMAQI
8th Jul 2025657 PMAQI
8th Jul 2025658 PMAQI
8th Jul 2025689 PMAQI
8th Jul 20257010 PMAQI
8th Jul 20257011 PMAQI
9th Jul 20257012 AMAQI
9th Jul 2025701 AMAQI
9th Jul 2025732 AMAQI
9th Jul 2025723 AMAQI
9th Jul 2025714 AMAQI

26°C24/29°C

9th Jul 2025705 AMAQI
9th Jul 2025696 AMAQI
9th Jul 2025697 AMAQI
9th Jul 2025708 AMAQI
9th Jul 2025709 AMAQI
9th Jul 20257510 AMAQI
9th Jul 20257911 AMAQI
9th Jul 20258212 PMAQI
9th Jul 2025761 PMAQI
9th Jul 2025742 PMAQI
9th Jul 2025783 PMAQI
9th Jul 2025794 PMAQI
9th Jul 2025815 PMAQI
9th Jul 2025816 PMAQI
9th Jul 2025827 PMAQI
9th Jul 2025798 PMAQI
9th Jul 2025729 PMAQI
9th Jul 20257210 PMAQI
9th Jul 20256911 PMAQI
10th Jul 20257012 AMAQI
10th Jul 2025701 AMAQI
10th Jul 2025702 AMAQI
10th Jul 2025703 AMAQI
10th Jul 2025694 AMAQI

26°C24/28°C

10th Jul 2025695 AMAQI
10th Jul 2025716 AMAQI
10th Jul 2025707 AMAQI
10th Jul 2025708 AMAQI
10th Jul 2025769 AMAQI
10th Jul 20258310 AMAQI
10th Jul 20259111 AMAQI
10th Jul 202510012 PMAQI
10th Jul 2025901 PMAQI
10th Jul 2025892 PMAQI
10th Jul 2025923 PMAQI
10th Jul 2025944 PMAQI
10th Jul 2025925 PMAQI
10th Jul 2025906 PMAQI
10th Jul 2025887 PMAQI
10th Jul 2025828 PMAQI
10th Jul 2025719 PMAQI
10th Jul 20257010 PMAQI
10th Jul 20257011 PMAQI
11th Jul 20257012 AMAQI
11th Jul 2025691 AMAQI
11th Jul 2025702 AMAQI
11th Jul 2025703 AMAQI
11th Jul 2025704 AMAQI

26°C24/30°C

11th Jul 2025715 AMAQI
11th Jul 2025716 AMAQI
11th Jul 2025717 AMAQI
11th Jul 2025718 AMAQI
11th Jul 2025779 AMAQI
11th Jul 20257910 AMAQI
11th Jul 20257811 AMAQI
11th Jul 20257312 PMAQI
11th Jul 2025721 PMAQI
11th Jul 2025702 PMAQI
11th Jul 2025743 PMAQI
11th Jul 2025664 PMAQI
11th Jul 2025605 PMAQI
11th Jul 2025566 PMAQI
11th Jul 2025557 PMAQI
11th Jul 2025568 PMAQI
11th Jul 2025669 PMAQI
11th Jul 20256510 PMAQI
11th Jul 20256411 PMAQI
12th Jul 20256412 AMAQI
12th Jul 2025661 AMAQI
12th Jul 2025692 AMAQI
12th Jul 2025693 AMAQI
12th Jul 2025694 AMAQI

26°C24/28°C

12th Jul 2025705 AMAQI
12th Jul 2025706 AMAQI
12th Jul 2025707 AMAQI
12th Jul 2025708 AMAQI
12th Jul 2025479 AMAQI
12th Jul 20254810 AMAQI
12th Jul 20255611 AMAQI
12th Jul 20255712 PMAQI
12th Jul 2025591 PMAQI
12th Jul 2025582 PMAQI
12th Jul 2025573 PMAQI
12th Jul 2025544 PMAQI
12th Jul 2025525 PMAQI
12th Jul 2025526 PMAQI
12th Jul 2025537 PMAQI
12th Jul 2025568 PMAQI
12th Jul 2025629 PMAQI
12th Jul 20256210 PMAQI
12th Jul 20256111 PMAQI
13th Jul 20256112 AMAQI
13th Jul 2025631 AMAQI
13th Jul 2025662 AMAQI
13th Jul 2025673 AMAQI
13th Jul 2025664 AMAQI

26°C24/28°C

13th Jul 2025645 AMAQI
13th Jul 2025646 AMAQI
13th Jul 2025637 AMAQI
13th Jul 2025648 AMAQI
13th Jul 2025429 AMAQI
13th Jul 20252210 AMAQI
13th Jul 20252511 AMAQI
13th Jul 20252812 PMAQI
13th Jul 2025431 PMAQI
13th Jul 2025412 PMAQI
13th Jul 2025423 PMAQI
13th Jul 2025434 PMAQI
13th Jul 2025425 PMAQI
13th Jul 2025426 PMAQI
13th Jul 2025387 PMAQI
13th Jul 2025458 PMAQI
13th Jul 2025579 PMAQI
13th Jul 20255710 PMAQI
13th Jul 20255811 PMAQI
14th Jul 20255612 AMAQI
14th Jul 2025591 AMAQI
14th Jul 2025622 AMAQI
14th Jul 2025623 AMAQI
14th Jul 2025624 AMAQI

26°C24/28°C

14th Jul 2025605 AMAQI
14th Jul 2025606 AMAQI
14th Jul 2025607 AMAQI
14th Jul 2025608 AMAQI
14th Jul 2025299 AMAQI
14th Jul 20251710 AMAQI
14th Jul 20251811 AMAQI
14th Jul 20252012 PMAQI
14th Jul 2025351 PMAQI
14th Jul 2025372 PMAQI
14th Jul 2025353 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025345 PMAQI
14th Jul 2025326 PMAQI
14th Jul 2025327 PMAQI
14th Jul 2025388 PMAQI
14th Jul 2025549 PMAQI
14th Jul 20255410 PMAQI
14th Jul 20255411 PMAQI
15th Jul 20255412 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025572 AMAQI
15th Jul 2025583 AMAQI
15th Jul 2025584 AMAQI

24°C21/26°C

15th Jul 2025565 AMAQI
15th Jul 2025566 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025568 AMAQI
15th Jul 2025379 AMAQI
15th Jul 20253310 AMAQI
15th Jul 20253811 AMAQI
15th Jul 20254412 PMAQI
15th Jul 2025501 PMAQI
15th Jul 2025522 PMAQI
15th Jul 2025553 PMAQI
15th Jul 2025614 PMAQI
15th Jul 2025645 PMAQI
15th Jul 2025676 PMAQI
15th Jul 2025607 PMAQI
15th Jul 2025588 PMAQI
15th Jul 2025579 PMAQI
15th Jul 20255710 PMAQI
15th Jul 20255811 PMAQI
16th Jul 20255612 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025553 AMAQI
16th Jul 2025554 AMAQI

25°C21/29°C

16th Jul 2025555 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025547 AMAQI
16th Jul 2025558 AMAQI
16th Jul 2025559 AMAQI
16th Jul 20255410 AMAQI
16th Jul 20255411 AMAQI
16th Jul 20255712 PMAQI
16th Jul 2025581 PMAQI
16th Jul 2025602 PMAQI
16th Jul 2025623 PMAQI
16th Jul 2025644 PMAQI
16th Jul 2025625 PMAQI
16th Jul 2025596 PMAQI
16th Jul 2025557 PMAQI
16th Jul 2025548 PMAQI
16th Jul 2025559 PMAQI
16th Jul 20255610 PMAQI
16th Jul 20255711 PMAQI
17th Jul 20255812 AMAQI
17th Jul 2025571 AMAQI
17th Jul 2025552 AMAQI
17th Jul 2025553 AMAQI
17th Jul 2025554 AMAQI

25°C22/28°C

17th Jul 2025565 AMAQI
17th Jul 2025566 AMAQI
17th Jul 2025567 AMAQI
17th Jul 2025568 AMAQI
17th Jul 2025409 AMAQI
17th Jul 20253710 AMAQI
17th Jul 20253911 AMAQI
17th Jul 20253712 PMAQI
17th Jul 2025451 PMAQI
17th Jul 2025422 PMAQI
17th Jul 2025423 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025375 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025357 PMAQI
17th Jul 2025388 PMAQI
17th Jul 2025539 PMAQI
17th Jul 20255310 PMAQI
17th Jul 20255311 PMAQI
18th Jul 20255312 AMAQI
18th Jul 2025551 AMAQI
18th Jul 2025562 AMAQI
18th Jul 2025563 AMAQI
18th Jul 2025564 AMAQI

26°C25/28°C

18th Jul 2025555 AMAQI
18th Jul 2025556 AMAQI
18th Jul 2025557 AMAQI
18th Jul 2025568 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20251610 AMAQI
18th Jul 20251711 AMAQI
18th Jul 20251812 PMAQI
18th Jul 2025281 PMAQI
18th Jul 2025322 PMAQI
18th Jul 2025353 PMAQI
18th Jul 2025344 PMAQI
18th Jul 2025375 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025377 PMAQI
18th Jul 2025428 PMAQI
18th Jul 2025519 PMAQI
18th Jul 20255010 PMAQI
18th Jul 20254911 PMAQI
19th Jul 20255012 AMAQI
19th Jul 2025511 AMAQI
19th Jul 2025542 AMAQI
19th Jul 2025543 AMAQI
19th Jul 2025534 AMAQI

24°C24/25°C

19th Jul 2025525 AMAQI
19th Jul 2025526 AMAQI
19th Jul 2025527 AMAQI
19th Jul 2025528 AMAQI
19th Jul 2025309 AMAQI
19th Jul 20252010 AMAQI
19th Jul 20252211 AMAQI
19th Jul 20252812 PMAQI
19th Jul 2025321 PMAQI
19th Jul 2025332 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025354 PMAQI
19th Jul 2025325 PMAQI
19th Jul 2025316 PMAQI
19th Jul 2025317 PMAQI
19th Jul 2025368 PMAQI
19th Jul 2025469 PMAQI
19th Jul 20254510 PMAQI
19th Jul 20254411 PMAQI
20th Jul 20254512 AMAQI
20th Jul 2025481 AMAQI
20th Jul 2025512 AMAQI
20th Jul 2025523 AMAQI
20th Jul 2025504 AMAQI

26°C24/27°C

20th Jul 2025485 AMAQI
20th Jul 2025496 AMAQI
20th Jul 2025487 AMAQI
20th Jul 2025498 AMAQI
20th Jul 2025359 AMAQI
20th Jul 20252010 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20252312 PMAQI
20th Jul 2025281 PMAQI
20th Jul 2025272 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025274 PMAQI
20th Jul 2025295 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025318 PMAQI
20th Jul 2025409 PMAQI
20th Jul 20254010 PMAQI
20th Jul 20254111 PMAQI
21st Jul 20254012 AMAQI
21st Jul 2025431 AMAQI
21st Jul 2025462 AMAQI
21st Jul 2025473 AMAQI
21st Jul 2025454 AMAQI

26°C24/28°C

21st Jul 2025435 AMAQI
21st Jul 2025446 AMAQI
21st Jul 2025437 AMAQI
21st Jul 2025448 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252010 AMAQI
21st Jul 20252311 AMAQI
21st Jul 20252512 PMAQI
21st Jul 2025281 PMAQI
21st Jul 2025262 PMAQI
21st Jul 2025253 PMAQI
21st Jul 2025234 PMAQI
21st Jul 2025235 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025237 PMAQI
21st Jul 2025268 PMAQI
21st Jul 2025359 PMAQI
21st Jul 20253610 PMAQI
21st Jul 20253511 PMAQI
22nd Jul 20253512 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025422 AMAQI
22nd Jul 2025423 AMAQI
22nd Jul 2025414 AMAQI

26°C24/28°C

22nd Jul 2025395 AMAQI
22nd Jul 2025386 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025398 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252210 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20252212 PMAQI
22nd Jul 2025251 PMAQI
22nd Jul 2025232 PMAQI
22nd Jul 2025243 PMAQI
22nd Jul 2025224 PMAQI
22nd Jul 2025225 PMAQI
22nd Jul 2025226 PMAQI
22nd Jul 2025227 PMAQI
22nd Jul 2025268 PMAQI
22nd Jul 2025329 PMAQI
22nd Jul 20253210 PMAQI
22nd Jul 20253211 PMAQI
23rd Jul 20253112 AMAQI
23rd Jul 2025341 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI
23rd Jul 2025364 AMAQI

26°C24/29°C

23rd Jul 2025345 AMAQI
23rd Jul 2025346 AMAQI
23rd Jul 2025347 AMAQI
23rd Jul 2025348 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20251810 AMAQI
23rd Jul 20252011 AMAQI
23rd Jul 20252512 PMAQI
23rd Jul 2025251 PMAQI
23rd Jul 2025232 PMAQI
23rd Jul 2025223 PMAQI
23rd Jul 2025234 PMAQI
23rd Jul 2025245 PMAQI
23rd Jul 2025246 PMAQI
23rd Jul 2025267 PMAQI
23rd Jul 2025278 PMAQI
23rd Jul 2025329 PMAQI
23rd Jul 20253210 PMAQI
23rd Jul 20253211 PMAQI
24th Jul 20253012 AMAQI
24th Jul 2025341 AMAQI
24th Jul 2025352 AMAQI
24th Jul 2025343 AMAQI
24th Jul 2025334 AMAQI

26°C23/29°C

24th Jul 2025325 AMAQI
24th Jul 2025326 AMAQI
24th Jul 2025327 AMAQI
24th Jul 2025338 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20252210 AMAQI
24th Jul 20252511 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025281 PMAQI
24th Jul 2025272 PMAQI
24th Jul 2025293 PMAQI
24th Jul 2025284 PMAQI
24th Jul 2025275 PMAQI
24th Jul 2025316 PMAQI
24th Jul 2025287 PMAQI
24th Jul 2025268 PMAQI
24th Jul 2025309 PMAQI
24th Jul 20253010 PMAQI
24th Jul 20252811 PMAQI
25th Jul 20252912 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025332 AMAQI
25th Jul 2025333 AMAQI
25th Jul 2025334 AMAQI

27°C24/29°C

25th Jul 2025335 AMAQI
25th Jul 2025326 AMAQI
25th Jul 2025337 AMAQI
25th Jul 2025338 AMAQI
25th Jul 2025249 AMAQI
25th Jul 20252310 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20253512 PMAQI
25th Jul 2025321 PMAQI
25th Jul 2025282 PMAQI
25th Jul 2025263 PMAQI
25th Jul 2025284 PMAQI
25th Jul 2025285 PMAQI
25th Jul 2025286 PMAQI
25th Jul 2025277 PMAQI
25th Jul 2025288 PMAQI
25th Jul 2025329 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20252911 PMAQI
26th Jul 20252912 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025322 AMAQI
26th Jul 2025313 AMAQI
26th Jul 2025314 AMAQI

27°C25/30°C

26th Jul 2025305 AMAQI
26th Jul 2025306 AMAQI
26th Jul 2025317 AMAQI
26th Jul 2025308 AMAQI
26th Jul 2025259 AMAQI
26th Jul 20252810 AMAQI
26th Jul 20253111 AMAQI
26th Jul 20253012 PMAQI
26th Jul 2025261 PMAQI
26th Jul 2025252 PMAQI
26th Jul 2025233 PMAQI
26th Jul 2025234 PMAQI
26th Jul 2025235 PMAQI
26th Jul 2025206 PMAQI
26th Jul 2025187 PMAQI
26th Jul 2025218 PMAQI
26th Jul 2025279 PMAQI
26th Jul 20252610 PMAQI
26th Jul 20252711 PMAQI
27th Jul 20252812 AMAQI
27th Jul 2025281 AMAQI
27th Jul 2025312 AMAQI
27th Jul 2025303 AMAQI
27th Jul 2025304 AMAQI

27°C25/30°C

27th Jul 2025295 AMAQI
27th Jul 2025296 AMAQI
27th Jul 2025297 AMAQI
27th Jul 2025298 AMAQI
27th Jul 2025249 AMAQI
27th Jul 20251910 AMAQI
27th Jul 20252011 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025221 PMAQI
27th Jul 2025212 PMAQI
27th Jul 2025213 PMAQI
27th Jul 2025224 PMAQI
27th Jul 2025225 PMAQI
27th Jul 2025256 PMAQI
27th Jul 2025247 PMAQI
27th Jul 2025258 PMAQI
27th Jul 2025279 PMAQI
27th Jul 20252710 PMAQI
27th Jul 20252811 PMAQI
28th Jul 20252812 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025292 AMAQI
28th Jul 2025293 AMAQI
28th Jul 2025284 AMAQI

27°C24/30°C

28th Jul 2025285 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025209 AMAQI
28th Jul 20251810 AMAQI
28th Jul 20251911 AMAQI
28th Jul 20252212 PMAQI
28th Jul 2025241 PMAQI
28th Jul 2025242 PMAQI
28th Jul 2025243 PMAQI
28th Jul 2025244 PMAQI
28th Jul 2025265 PMAQI
28th Jul 2025266 PMAQI
28th Jul 2025267 PMAQI
28th Jul 2025268 PMAQI
28th Jul 2025289 PMAQI
28th Jul 20252810 PMAQI
28th Jul 20252711 PMAQI
29th Jul 20252612 AMAQI
29th Jul 2025271 AMAQI
29th Jul 2025282 AMAQI
29th Jul 2025283 AMAQI
29th Jul 2025284 AMAQI

26°C24/29°C

29th Jul 2025275 AMAQI
29th Jul 2025276 AMAQI
29th Jul 2025277 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025239 AMAQI
29th Jul 20252010 AMAQI
29th Jul 20252211 AMAQI
29th Jul 20252612 PMAQI
29th Jul 2025261 PMAQI
29th Jul 2025252 PMAQI
29th Jul 2025253 PMAQI
29th Jul 2025274 PMAQI
29th Jul 2025265 PMAQI
29th Jul 2025246 PMAQI
29th Jul 2025267 PMAQI
29th Jul 2025268 PMAQI
29th Jul 2025279 PMAQI
29th Jul 20252710 PMAQI
29th Jul 20252611 PMAQI
30th Jul 20252712 AMAQI
30th Jul 2025271 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025283 AMAQI
30th Jul 2025274 AMAQI

26°C24/29°C

30th Jul 2025275 AMAQI
30th Jul 2025276 AMAQI
30th Jul 2025277 AMAQI
30th Jul 2025278 AMAQI
30th Jul 2025249 AMAQI
30th Jul 20252310 AMAQI
30th Jul 20252311 AMAQI
30th Jul 20252712 PMAQI
30th Jul 2025281 PMAQI
30th Jul 2025282 PMAQI
30th Jul 2025283 PMAQI
30th Jul 2025264 PMAQI
30th Jul 2025275 PMAQI
30th Jul 2025286 PMAQI
30th Jul 2025277 PMAQI
30th Jul 2025268 PMAQI
30th Jul 2025279 PMAQI
30th Jul 20252710 PMAQI
30th Jul 20252611 PMAQI
31st Jul 20252612 AMAQI
31st Jul 2025261 AMAQI
31st Jul 2025272 AMAQI
31st Jul 2025283 AMAQI
31st Jul 2025274 AMAQI

26°C23/29°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 20253011 AMAQI
31st Jul 20253012 PMAQI
31st Jul 2025321 PMAQI
31st Jul 2025302 PMAQI
31st Jul 2025293 PMAQI
31st Jul 2025264 PMAQI
31st Jul 2025265 PMAQI
31st Jul 2025276 PMAQI
31st Jul 2025297 PMAQI
31st Jul 2025328 PMAQI
31st Jul 2025469 PMAQI
31st Jul 20254510 PMAQI
31st Jul 20254011 PMAQI
1st Aug 20253512 AMAQI
1st Aug 2025421 AMAQI
1st Aug 2025322 AMAQI
1st Aug 2025333 AMAQI
1st Aug 2025354 AMAQI

26°C23/29°C

1st Aug 2025355 AMAQI
1st Aug 2025376 AMAQI
1st Aug 2025407 AMAQI
1st Aug 2025378 AMAQI
1st Aug 2025549 AMAQI
1st Aug 20254810 AMAQI
1st Aug 20255211 AMAQI
1st Aug 20254812 PMAQI
1st Aug 2025541 PMAQI
1st Aug 2025502 PMAQI
1st Aug 2025543 PMAQI
1st Aug 2025564 PMAQI
1st Aug 2025555 PMAQI
1st Aug 2025556 PMAQI
1st Aug 2025507 PMAQI
1st Aug 2025478 PMAQI
1st Aug 2025499 PMAQI
1st Aug 20254610 PMAQI
1st Aug 20254211 PMAQI
2nd Aug 20254212 AMAQI
2nd Aug 2025351 AMAQI
2nd Aug 2025402 AMAQI
2nd Aug 2025353 AMAQI
2nd Aug 2025384 AMAQI

27°C24/30°C

2nd Aug 2025405 AMAQI
2nd Aug 2025426 AMAQI
2nd Aug 2025397 AMAQI
2nd Aug 2025398 AMAQI
2nd Aug 2025549 AMAQI
2nd Aug 20255410 AMAQI
2nd Aug 20255511 AMAQI
2nd Aug 20255612 PMAQI
2nd Aug 2025541 PMAQI
2nd Aug 2025542 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025544 PMAQI
2nd Aug 2025505 PMAQI
2nd Aug 2025496 PMAQI
2nd Aug 2025407 PMAQI
2nd Aug 2025448 PMAQI
2nd Aug 2025459 PMAQI
2nd Aug 20254410 PMAQI
2nd Aug 20254211 PMAQI
3rd Aug 20254012 AMAQI
3rd Aug 2025391 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025404 AMAQI

27°C23/31°C

3rd Aug 2025435 AMAQI
3rd Aug 2025426 AMAQI
3rd Aug 2025437 AMAQI
3rd Aug 2025428 AMAQI
3rd Aug 2025489 AMAQI
3rd Aug 20254110 AMAQI
3rd Aug 20255511 AMAQI
3rd Aug 20255612 PMAQI
3rd Aug 2025561 PMAQI
3rd Aug 2025522 PMAQI
3rd Aug 2025553 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025475 PMAQI
3rd Aug 2025566 PMAQI
3rd Aug 2025517 PMAQI
3rd Aug 2025488 PMAQI
3rd Aug 2025519 PMAQI
3rd Aug 20255110 PMAQI
3rd Aug 20254411 PMAQI
4th Aug 20254712 AMAQI
4th Aug 2025421 AMAQI
4th Aug 2025412 AMAQI
4th Aug 2025403 AMAQI
4th Aug 2025424 AMAQI

27°C24/31°C

4th Aug 2025435 AMAQI
5 AM
4th Aug 2025436 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025609 AMAQI
4th Aug 20256010 AMAQI
4th Aug 20256411 AMAQI
4th Aug 20257312 PMAQI
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

38AQI

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. 38).
Night time
Avg. Highest Time
12 AM - 4 AM

50AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
8 PM

44AQI

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. 50), while the lowest AQI was between 8 PM to 8 PM (Avg. 44).

2025 Days Vs Air Quality

Hofu, Yamaguchi, Japan

2025

70%

150

30%

64

Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)

Good
150 Days
Moderate
64 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 70%

Health Risk Level:

Low

In 2025, 70% of 216 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

Hofu, 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
30AQI
2nd January 2025
38AQI
3rd January 2025
32AQI
4th January 2025
32AQI
5th January 2025
30AQI
6th January 2025
44AQI
7th January 2025
31AQI
8th January 2025
36AQI
9th January 2025
30AQI
10th January 2025
29AQI
11th January 2025
29AQI
12th January 2025
33AQI
13th January 2025
41AQI
14th January 2025
48AQI
15th January 2025
39AQI
16th January 2025
39AQI
17th January 2025
42AQI
18th January 2025
35AQI
19th January 2025
45AQI
20th January 2025
45AQI
21st January 2025
50AQI
22nd January 2025
66AQI
23rd January 2025
71AQI
24th January 2025
69AQI
25th January 2025
45AQI
26th January 2025
43AQI
27th January 2025
37AQI
28th January 2025
36AQI
29th January 2025
32AQI
30th January 2025
43AQI
31st January 2025
48AQI
1st February 2025
48AQI
2nd February 2025
35AQI
3rd February 2025
46AQI
4th February 2025
33AQI
5th February 2025
39AQI
6th February 2025
32AQI
7th February 2025
36AQI
8th February 2025
31AQI
9th February 2025
32AQI
10th February 2025
32AQI
11th February 2025
38AQI
12th February 2025
37AQI
13th February 2025
33AQI
14th February 2025
38AQI
15th February 2025
32AQI
16th February 2025
41AQI
17th February 2025
40AQI
18th February 2025
35AQI
19th February 2025
37AQI
20th February 2025
34AQI
21st February 2025
35AQI
22nd February 2025
40AQI
23rd February 2025
39AQI
24th February 2025
40AQI
25th February 2025
38AQI
26th February 2025
48AQI
27th February 2025
65AQI
28th February 2025
59AQI
1st March 2025
69AQI
2nd March 2025
54AQI
3rd March 2025
46AQI
4th March 2025
37AQI
5th March 2025
35AQI
6th March 2025
36AQI
7th March 2025
34AQI
8th March 2025
39AQI
9th March 2025
41AQI
10th March 2025
41AQI
11th March 2025
45AQI
12th March 2025
52AQI
13th March 2025
52AQI
14th March 2025
42AQI
15th March 2025
34AQI
16th March 2025
24AQI
17th March 2025
37AQI
18th March 2025
38AQI
19th March 2025
44AQI
20th March 2025
51AQI
21st March 2025
57AQI
22nd March 2025
69AQI
23rd March 2025
72AQI
24th March 2025
62AQI
25th March 2025
71AQI
26th March 2025
76AQI
27th March 2025
58AQI
28th March 2025
62AQI
29th March 2025
51AQI
30th March 2025
43AQI
31st March 2025
41AQI
1st April 2025
44AQI
2nd April 2025
37AQI
3rd April 2025
28AQI
4th April 2025
36AQI
5th April 2025
42AQI
6th April 2025
46AQI
7th April 2025
44AQI
8th April 2025
48AQI
9th April 2025
59AQI
10th April 2025
57AQI
11th April 2025
59AQI
12th April 2025
56AQI
13th April 2025
49AQI
14th April 2025
46AQI
15th April 2025
35AQI
16th April 2025
50AQI
17th April 2025
49AQI
18th April 2025
59AQI
19th April 2025
57AQI
20th April 2025
41AQI
21st April 2025
44AQI
22nd April 2025
40AQI
23rd April 2025
27AQI
24th April 2025
38AQI
25th April 2025
64AQI
26th April 2025
52AQI
27th April 2025
58AQI
28th April 2025
51AQI
29th April 2025
50AQI
30th April 2025
54AQI
1st May 2025
49AQI
2nd May 2025
43AQI
3rd May 2025
48AQI
4th May 2025
41AQI
5th May 2025
42AQI
6th May 2025
32AQI
7th May 2025
36AQI
8th May 2025
40AQI
9th May 2025
34AQI
10th May 2025
36AQI
11th May 2025
45AQI
12th May 2025
52AQI
13th May 2025
57AQI
14th May 2025
60AQI
15th May 2025
56AQI
16th May 2025
54AQI
17th May 2025
43AQI
18th May 2025
55AQI
19th May 2025
58AQI
20th May 2025
58AQI
21st May 2025
39AQI
22nd May 2025
40AQI
23rd May 2025
45AQI
24th May 2025
33AQI
25th May 2025
30AQI
26th May 2025
35AQI
27th May 2025
40AQI
28th May 2025
44AQI
29th May 2025
43AQI
30th May 2025
43AQI
31st May 2025
39AQI
1st June 2025
46AQI
2nd June 2025
52AQI
3rd June 2025
34AQI
4th June 2025
45AQI
5th June 2025
45AQI
6th June 2025
53AQI
7th June 2025
58AQI
8th June 2025
60AQI
9th June 2025
59AQI
10th June 2025
40AQI
11th June 2025
46AQI
12th June 2025
49AQI
13th June 2025
47AQI
14th June 2025
41AQI
15th June 2025
37AQI
16th June 2025
35AQI
17th June 2025
38AQI
18th June 2025
44AQI
19th June 2025
46AQI
20th June 2025
52AQI
21st June 2025
55AQI
22nd June 2025
54AQI
23rd June 2025
47AQI
24th June 2025
47AQI
25th June 2025
45AQI
26th June 2025
50AQI
27th June 2025
52AQI
28th June 2025
49AQI
29th June 2025
51AQI
30th June 2025
54AQI
1st July 2025
58AQI
2nd July 2025
67AQI
3rd July 2025
83AQI
4th July 2025
83AQI
5th July 2025
82AQI
6th July 2025
69AQI
7th July 2025
67AQI
8th July 2025
69AQI
9th July 2025
74AQI
10th July 2025
77AQI
11th July 2025
68AQI
12th July 2025
61AQI
13th July 2025
53AQI
14th July 2025
47AQI
15th July 2025
55AQI
16th July 2025
56AQI
17th July 2025
49AQI
18th July 2025
45AQI
19th July 2025
42AQI
20th July 2025
39AQI
21st July 2025
34AQI
22nd July 2025
31AQI
23rd July 2025
29AQI
24th July 2025
30AQI
25th July 2025
30AQI
26th July 2025
27AQI
27th July 2025
26AQI
28th July 2025
26AQI
29th July 2025
26AQI
30th July 2025
27AQI
31st July 2025
30AQI
1st August 2025
43AQI
2nd August 2025
45AQI

41AQI

39AQI

49AQI

47AQI

44AQI

48AQI

50AQI

44AQI

No. of days

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

202546AQI

28
3
26
2
17
14
19
11
23
8
19
11
16
15
2
150
64

Highest AQI recorded in

July

50AQI

Lowest AQI recorded in

February

39AQI

202438AQI

31
11
2
3
2
3
2
12
3
30
31
26
5
19
10
27
4
23
7
31
247
35

Highest AQI recorded in

April

50AQI

Lowest AQI recorded in

July

30AQI

202339AQI

26
4
1
28
23
8
15
15
23
8
26
4
28
3
31
27
3
29
2
27
2
28
3
311
52
1

Highest AQI recorded in

April

51AQI

Lowest AQI recorded in

August

29AQI

202246AQI

19
11
18
3
19
12
13
16
8
23
17
13
12
9
1
22
6
23
8
22
8
30
1
204
110

Highest AQI recorded in

May

57AQI

Lowest AQI recorded in

August

33AQI

202147AQI

31
21
7
23
6
18
3
15
16
5
25
8
23
23
8
15
15
16
15
17
13
18
13
210
144

Highest AQI recorded in

June

62AQI

Lowest AQI recorded in

January

30AQI

202041AQI

10
3
15
6
8
10
17
13
28
3
12
4
3
18
1
27
4
28
2
29
2
192
48
3

Highest AQI recorded in

August

56AQI

Lowest AQI recorded in

December

30AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2021(Avg.)
47AQI
Least Polluted Year Recorded
2024(Avg.)
38AQI

Hofu's annual 2025 AQI (46) shows an average percentage change of 8.9% (worsened AQI) compared to previous years: 2020 (41), 2021 (47), 2022 (46), 2023 (39), 2024 (38).