Kusatsu, Shiga, 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
Kusatsu, Shiga, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Aug 2024
55AQILowest AQI recorded on
13th Aug 2021
11AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 44 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Kusatsu, Shiga, Japan
AQI
Day
Night
.
4 AM2nd Aug 2025
7 PM
3 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
3PM2nd Aug
60AQI
Avg. Lowest Time
2AM3rd Aug
37AQI
In the last 24 hours,
Kusatsu's AQI reached its highest point of 60 at 3 PM during the Night, while the lowest point, 37, was recorded at 2 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Kusatsu, Shiga, Japan
JulAug
04th - 05th05th - 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
Day
Night
4th Jul 2025784 AMAQI
4th Jul 2025765 AMAQI
4th Jul 2025766 AMAQI
4th Jul 2025767 AMAQI
4th Jul 2025768 AMAQI
4th Jul 2025749 AMAQI
4th Jul 20257610 AMAQI
4th Jul 20258411 AMAQI
4th Jul 20259012 PMAQI
4th Jul 2025961 PMAQI
4th Jul 20251002 PMAQI
4th Jul 20251033 PMAQI
4th Jul 20251004 PMAQI
4th Jul 20251055 PMAQI
4th Jul 20251006 PMAQI
4th Jul 20251107 PMAQI
4th Jul 20251208 PMAQI
4th Jul 2025979 PMAQI
4th Jul 20259810 PMAQI
4th Jul 202510011 PMAQI
5th Jul 20259812 AMAQI
5th Jul 2025911 AMAQI
5th Jul 2025802 AMAQI
5th Jul 2025803 AMAQI
28°C23/34°C
5th Jul 2025814 AMAQI
5th Jul 2025825 AMAQI
5th Jul 2025826 AMAQI
5th Jul 2025827 AMAQI
5th Jul 2025828 AMAQI
5th Jul 20251019 AMAQI
5th Jul 202510810 AMAQI
5th Jul 202511411 AMAQI
5th Jul 202511812 PMAQI
5th Jul 20251151 PMAQI
5th Jul 20251072 PMAQI
5th Jul 20251073 PMAQI
5th Jul 20251084 PMAQI
5th Jul 20251085 PMAQI
5th Jul 20251086 PMAQI
5th Jul 2025967 PMAQI
5th Jul 2025878 PMAQI
5th Jul 2025819 PMAQI
5th Jul 20257910 PMAQI
5th Jul 20258011 PMAQI
6th Jul 20258012 AMAQI
6th Jul 2025801 AMAQI
6th Jul 2025842 AMAQI
6th Jul 2025853 AMAQI
28°C24/33°C
6th Jul 2025874 AMAQI
6th Jul 2025895 AMAQI
6th Jul 2025896 AMAQI
6th Jul 2025907 AMAQI
6th Jul 2025908 AMAQI
6th Jul 2025789 AMAQI
6th Jul 20257010 AMAQI
6th Jul 20258611 AMAQI
6th Jul 20258712 PMAQI
6th Jul 2025861 PMAQI
6th Jul 2025842 PMAQI
6th Jul 2025843 PMAQI
6th Jul 2025824 PMAQI
6th Jul 2025765 PMAQI
6th Jul 2025726 PMAQI
6th Jul 2025677 PMAQI
6th Jul 2025708 PMAQI
6th Jul 2025769 PMAQI
6th Jul 20257410 PMAQI
6th Jul 20257411 PMAQI
7th Jul 20257412 AMAQI
7th Jul 2025771 AMAQI
7th Jul 2025842 AMAQI
7th Jul 2025853 AMAQI
28°C23/35°C
7th Jul 2025844 AMAQI
7th Jul 2025835 AMAQI
7th Jul 2025836 AMAQI
7th Jul 2025827 AMAQI
7th Jul 2025838 AMAQI
7th Jul 2025599 AMAQI
7th Jul 20254610 AMAQI
7th Jul 20254511 AMAQI
7th Jul 20255112 PMAQI
7th Jul 2025561 PMAQI
7th Jul 2025562 PMAQI
7th Jul 2025573 PMAQI
7th Jul 2025564 PMAQI
7th Jul 2025585 PMAQI
7th Jul 2025586 PMAQI
7th Jul 2025597 PMAQI
7th Jul 2025658 PMAQI
7th Jul 2025729 PMAQI
7th Jul 20257210 PMAQI
7th Jul 20257211 PMAQI
8th Jul 20257212 AMAQI
8th Jul 2025751 AMAQI
8th Jul 2025802 AMAQI
8th Jul 2025813 AMAQI
29°C24/35°C
8th Jul 2025794 AMAQI
8th Jul 2025765 AMAQI
8th Jul 2025766 AMAQI
8th Jul 2025777 AMAQI
8th Jul 2025768 AMAQI
8th Jul 2025729 AMAQI
8th Jul 20257510 AMAQI
8th Jul 20257911 AMAQI
8th Jul 20258212 PMAQI
8th Jul 2025831 PMAQI
8th Jul 2025812 PMAQI
8th Jul 2025793 PMAQI
8th Jul 2025744 PMAQI
8th Jul 2025725 PMAQI
8th Jul 2025816 PMAQI
8th Jul 2025787 PMAQI
8th Jul 2025758 PMAQI
8th Jul 2025749 PMAQI
8th Jul 20257510 PMAQI
8th Jul 20257611 PMAQI
9th Jul 20257812 AMAQI
9th Jul 2025781 AMAQI
9th Jul 2025752 AMAQI
9th Jul 2025763 AMAQI
28°C24/34°C
9th Jul 2025754 AMAQI
9th Jul 2025755 AMAQI
9th Jul 2025746 AMAQI
9th Jul 2025757 AMAQI
9th Jul 2025768 AMAQI
9th Jul 2025929 AMAQI
9th Jul 20259610 AMAQI
9th Jul 20259211 AMAQI
9th Jul 20259412 PMAQI
9th Jul 2025921 PMAQI
9th Jul 2025922 PMAQI
9th Jul 2025923 PMAQI
9th Jul 2025944 PMAQI
9th Jul 2025925 PMAQI
9th Jul 2025916 PMAQI
9th Jul 2025927 PMAQI
9th Jul 2025888 PMAQI
9th Jul 2025819 PMAQI
9th Jul 20258210 PMAQI
9th Jul 20258111 PMAQI
10th Jul 20258112 AMAQI
10th Jul 2025801 AMAQI
10th Jul 2025752 AMAQI
10th Jul 2025743 AMAQI
28°C24/34°C
10th Jul 2025764 AMAQI
10th Jul 2025785 AMAQI
10th Jul 2025786 AMAQI
10th Jul 2025787 AMAQI
10th Jul 2025788 AMAQI
10th Jul 2025699 AMAQI
10th Jul 20257010 AMAQI
10th Jul 20256811 AMAQI
10th Jul 20256012 PMAQI
10th Jul 2025641 PMAQI
10th Jul 2025602 PMAQI
10th Jul 2025553 PMAQI
10th Jul 2025604 PMAQI
10th Jul 2025575 PMAQI
10th Jul 2025456 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025538 PMAQI
10th Jul 2025659 PMAQI
10th Jul 20256510 PMAQI
10th Jul 20256611 PMAQI
11th Jul 20256612 AMAQI
11th Jul 2025661 AMAQI
11th Jul 2025732 AMAQI
11th Jul 2025733 AMAQI
29°C24/35°C
11th Jul 2025754 AMAQI
11th Jul 2025745 AMAQI
11th Jul 2025756 AMAQI
11th Jul 2025747 AMAQI
11th Jul 2025758 AMAQI
11th Jul 2025339 AMAQI
11th Jul 20252210 AMAQI
11th Jul 20252111 AMAQI
11th Jul 20252312 PMAQI
11th Jul 2025401 PMAQI
11th Jul 2025422 PMAQI
11th Jul 2025423 PMAQI
11th Jul 2025434 PMAQI
11th Jul 2025425 PMAQI
11th Jul 2025426 PMAQI
11th Jul 2025437 PMAQI
11th Jul 2025518 PMAQI
11th Jul 2025619 PMAQI
11th Jul 20256210 PMAQI
11th Jul 20256111 PMAQI
12th Jul 20256112 AMAQI
12th Jul 2025631 AMAQI
12th Jul 2025712 AMAQI
12th Jul 2025723 AMAQI
28°C25/33°C
12th Jul 2025694 AMAQI
12th Jul 2025675 AMAQI
12th Jul 2025676 AMAQI
12th Jul 2025677 AMAQI
12th Jul 2025678 AMAQI
12th Jul 2025419 AMAQI
12th Jul 20253610 AMAQI
12th Jul 20253311 AMAQI
12th Jul 20253412 PMAQI
12th Jul 2025431 PMAQI
12th Jul 2025472 PMAQI
12th Jul 2025453 PMAQI
12th Jul 2025444 PMAQI
12th Jul 2025445 PMAQI
12th Jul 2025476 PMAQI
12th Jul 2025487 PMAQI
12th Jul 2025518 PMAQI
12th Jul 2025599 PMAQI
12th Jul 20256010 PMAQI
12th Jul 20256011 PMAQI
13th Jul 20256012 AMAQI
13th Jul 2025611 AMAQI
13th Jul 2025662 AMAQI
13th Jul 2025663 AMAQI
28°C23/33°C
13th Jul 2025664 AMAQI
13th Jul 2025635 AMAQI
13th Jul 2025636 AMAQI
13th Jul 2025637 AMAQI
13th Jul 2025638 AMAQI
13th Jul 2025499 AMAQI
13th Jul 20253510 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253512 PMAQI
13th Jul 2025441 PMAQI
13th Jul 2025422 PMAQI
13th Jul 2025443 PMAQI
13th Jul 2025474 PMAQI
13th Jul 2025445 PMAQI
13th Jul 2025446 PMAQI
13th Jul 2025447 PMAQI
13th Jul 2025498 PMAQI
13th Jul 2025579 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255511 PMAQI
14th Jul 20255612 AMAQI
14th Jul 2025581 AMAQI
14th Jul 2025632 AMAQI
14th Jul 2025633 AMAQI
27°C24/32°C
14th Jul 2025624 AMAQI
14th Jul 2025605 AMAQI
14th Jul 2025606 AMAQI
14th Jul 2025607 AMAQI
14th Jul 2025608 AMAQI
14th Jul 2025279 AMAQI
14th Jul 20251710 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251812 PMAQI
14th Jul 2025281 PMAQI
14th Jul 2025282 PMAQI
14th Jul 2025263 PMAQI
14th Jul 2025254 PMAQI
14th Jul 2025245 PMAQI
14th Jul 2025256 PMAQI
14th Jul 2025247 PMAQI
14th Jul 2025358 PMAQI
14th Jul 2025509 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20254911 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025572 AMAQI
15th Jul 2025583 AMAQI
27°C24/33°C
15th Jul 2025584 AMAQI
15th Jul 2025565 AMAQI
15th Jul 2025566 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025568 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20252010 AMAQI
15th Jul 20252611 AMAQI
15th Jul 20253212 PMAQI
15th Jul 2025391 PMAQI
15th Jul 2025392 PMAQI
15th Jul 2025373 PMAQI
15th Jul 2025404 PMAQI
15th Jul 2025515 PMAQI
15th Jul 2025486 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025518 PMAQI
15th Jul 2025549 PMAQI
15th Jul 20255410 PMAQI
15th Jul 20255411 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025551 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025553 AMAQI
28°C24/34°C
16th Jul 2025544 AMAQI
16th Jul 2025535 AMAQI
16th Jul 2025536 AMAQI
16th Jul 2025537 AMAQI
16th Jul 2025538 AMAQI
16th Jul 2025509 AMAQI
16th Jul 20255010 AMAQI
16th Jul 20254611 AMAQI
16th Jul 20255112 PMAQI
16th Jul 2025491 PMAQI
16th Jul 2025402 PMAQI
16th Jul 2025383 PMAQI
16th Jul 2025394 PMAQI
16th Jul 2025395 PMAQI
16th Jul 2025446 PMAQI
16th Jul 2025417 PMAQI
16th Jul 2025418 PMAQI
16th Jul 2025499 PMAQI
16th Jul 20255010 PMAQI
16th Jul 20255011 PMAQI
17th Jul 20255012 AMAQI
17th Jul 2025491 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025553 AMAQI
26°C23/30°C
17th Jul 2025544 AMAQI
17th Jul 2025545 AMAQI
17th Jul 2025546 AMAQI
17th Jul 2025547 AMAQI
17th Jul 2025548 AMAQI
17th Jul 2025249 AMAQI
17th Jul 20251610 AMAQI
17th Jul 20251411 AMAQI
17th Jul 20251612 PMAQI
17th Jul 2025261 PMAQI
17th Jul 2025232 PMAQI
17th Jul 2025223 PMAQI
17th Jul 2025224 PMAQI
17th Jul 2025205 PMAQI
17th Jul 2025226 PMAQI
17th Jul 2025237 PMAQI
17th Jul 2025308 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254311 PMAQI
18th Jul 20254212 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025532 AMAQI
18th Jul 2025533 AMAQI
24°C23/26°C
18th Jul 2025524 AMAQI
18th Jul 2025505 AMAQI
18th Jul 2025506 AMAQI
18th Jul 2025517 AMAQI
18th Jul 2025508 AMAQI
18th Jul 2025339 AMAQI
18th Jul 20252710 AMAQI
18th Jul 20252311 AMAQI
18th Jul 20252212 PMAQI
18th Jul 2025271 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025243 PMAQI
18th Jul 2025254 PMAQI
18th Jul 2025265 PMAQI
18th Jul 2025246 PMAQI
18th Jul 2025297 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025409 PMAQI
18th Jul 20254110 PMAQI
18th Jul 20254011 PMAQI
19th Jul 20253912 AMAQI
19th Jul 2025431 AMAQI
19th Jul 2025502 AMAQI
19th Jul 2025513 AMAQI
26°C22/30°C
19th Jul 2025484 AMAQI
19th Jul 2025475 AMAQI
19th Jul 2025466 AMAQI
19th Jul 2025467 AMAQI
19th Jul 2025478 AMAQI
19th Jul 2025259 AMAQI
19th Jul 20251710 AMAQI
19th Jul 20251911 AMAQI
19th Jul 20252012 PMAQI
19th Jul 2025211 PMAQI
19th Jul 2025252 PMAQI
19th Jul 2025253 PMAQI
19th Jul 2025264 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025226 PMAQI
19th Jul 2025217 PMAQI
19th Jul 2025288 PMAQI
19th Jul 2025359 PMAQI
19th Jul 20253510 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025361 AMAQI
20th Jul 2025462 AMAQI
20th Jul 2025473 AMAQI
27°C22/32°C
20th Jul 2025454 AMAQI
20th Jul 2025425 AMAQI
20th Jul 2025426 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20251712 PMAQI
20th Jul 2025191 PMAQI
20th Jul 2025202 PMAQI
20th Jul 2025213 PMAQI
20th Jul 2025214 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025276 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025288 PMAQI
20th Jul 2025299 PMAQI
20th Jul 20253110 PMAQI
20th Jul 20253211 PMAQI
21st Jul 20253212 AMAQI
21st Jul 2025341 AMAQI
21st Jul 2025422 AMAQI
21st Jul 2025423 AMAQI
27°C23/33°C
21st Jul 2025404 AMAQI
21st Jul 2025385 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025387 AMAQI
21st Jul 2025378 AMAQI
21st Jul 2025239 AMAQI
21st Jul 20252010 AMAQI
21st Jul 20252311 AMAQI
21st Jul 20252512 PMAQI
21st Jul 2025321 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025303 PMAQI
21st Jul 2025314 PMAQI
21st Jul 2025305 PMAQI
21st Jul 2025286 PMAQI
21st Jul 2025247 PMAQI
21st Jul 2025268 PMAQI
21st Jul 2025309 PMAQI
21st Jul 20252710 PMAQI
21st Jul 20252711 PMAQI
22nd Jul 20253012 AMAQI
22nd Jul 2025321 AMAQI
22nd Jul 2025392 AMAQI
22nd Jul 2025383 AMAQI
28°C24/34°C
22nd Jul 2025384 AMAQI
22nd Jul 2025365 AMAQI
22nd Jul 2025376 AMAQI
22nd Jul 2025367 AMAQI
22nd Jul 2025378 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252210 AMAQI
22nd Jul 20252211 AMAQI
22nd Jul 20252512 PMAQI
22nd Jul 2025311 PMAQI
22nd Jul 2025322 PMAQI
22nd Jul 2025353 PMAQI
22nd Jul 2025384 PMAQI
22nd Jul 2025375 PMAQI
22nd Jul 2025386 PMAQI
22nd Jul 2025437 PMAQI
22nd Jul 2025448 PMAQI
22nd Jul 2025379 PMAQI
22nd Jul 20253410 PMAQI
22nd Jul 20253111 PMAQI
23rd Jul 20252912 AMAQI
23rd Jul 2025311 AMAQI
23rd Jul 2025372 AMAQI
23rd Jul 2025363 AMAQI
29°C24/35°C
23rd Jul 2025364 AMAQI
23rd Jul 2025345 AMAQI
23rd Jul 2025356 AMAQI
23rd Jul 2025347 AMAQI
23rd Jul 2025358 AMAQI
23rd Jul 2025289 AMAQI
23rd Jul 20252810 AMAQI
23rd Jul 20252811 AMAQI
23rd Jul 20253312 PMAQI
23rd Jul 2025411 PMAQI
23rd Jul 2025502 PMAQI
23rd Jul 2025503 PMAQI
23rd Jul 2025524 PMAQI
23rd Jul 2025545 PMAQI
23rd Jul 2025546 PMAQI
23rd Jul 2025547 PMAQI
23rd Jul 2025508 PMAQI
23rd Jul 2025469 PMAQI
23rd Jul 20254510 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20253512 AMAQI
24th Jul 2025331 AMAQI
24th Jul 2025352 AMAQI
24th Jul 2025353 AMAQI
30°C25/35°C
24th Jul 2025344 AMAQI
24th Jul 2025365 AMAQI
24th Jul 2025356 AMAQI
24th Jul 2025357 AMAQI
24th Jul 2025358 AMAQI
24th Jul 2025269 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20252911 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025512 PMAQI
24th Jul 2025533 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025535 PMAQI
24th Jul 2025536 PMAQI
24th Jul 2025547 PMAQI
24th Jul 2025468 PMAQI
24th Jul 2025349 PMAQI
24th Jul 20253210 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20252712 AMAQI
25th Jul 2025291 AMAQI
25th Jul 2025352 AMAQI
25th Jul 2025363 AMAQI
30°C25/36°C
25th Jul 2025364 AMAQI
25th Jul 2025375 AMAQI
25th Jul 2025366 AMAQI
25th Jul 2025367 AMAQI
25th Jul 2025368 AMAQI
25th Jul 2025319 AMAQI
25th Jul 20253310 AMAQI
25th Jul 20253411 AMAQI
25th Jul 20254212 PMAQI
25th Jul 2025361 PMAQI
25th Jul 2025312 PMAQI
25th Jul 2025393 PMAQI
25th Jul 2025374 PMAQI
25th Jul 2025375 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025287 PMAQI
25th Jul 2025338 PMAQI
25th Jul 2025309 PMAQI
25th Jul 20253010 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253012 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025343 AMAQI
30°C25/35°C
26th Jul 2025344 AMAQI
26th Jul 2025345 AMAQI
26th Jul 2025356 AMAQI
26th Jul 2025357 AMAQI
26th Jul 2025358 AMAQI
26th Jul 2025219 AMAQI
26th Jul 20251910 AMAQI
26th Jul 20251611 AMAQI
26th Jul 20251712 PMAQI
26th Jul 2025181 PMAQI
26th Jul 2025222 PMAQI
26th Jul 2025243 PMAQI
26th Jul 2025224 PMAQI
26th Jul 2025255 PMAQI
26th Jul 2025256 PMAQI
26th Jul 2025247 PMAQI
26th Jul 2025278 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252710 PMAQI
26th Jul 20252611 PMAQI
27th Jul 20252612 AMAQI
27th Jul 2025281 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025323 AMAQI
29°C25/35°C
27th Jul 2025324 AMAQI
27th Jul 2025305 AMAQI
27th Jul 2025316 AMAQI
27th Jul 2025307 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025259 AMAQI
27th Jul 20252210 AMAQI
27th Jul 20252311 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025231 PMAQI
27th Jul 2025212 PMAQI
27th Jul 2025233 PMAQI
27th Jul 2025204 PMAQI
27th Jul 2025225 PMAQI
27th Jul 2025206 PMAQI
27th Jul 2025267 PMAQI
27th Jul 2025268 PMAQI
27th Jul 2025259 PMAQI
27th Jul 20252410 PMAQI
27th Jul 20252411 PMAQI
28th Jul 20252612 AMAQI
28th Jul 2025271 AMAQI
28th Jul 2025302 AMAQI
28th Jul 2025303 AMAQI
29°C24/36°C
28th Jul 2025294 AMAQI
28th Jul 2025285 AMAQI
28th Jul 2025296 AMAQI
28th Jul 2025297 AMAQI
28th Jul 2025298 AMAQI
28th Jul 2025239 AMAQI
28th Jul 20252710 AMAQI
28th Jul 20252211 AMAQI
28th Jul 20252312 PMAQI
28th Jul 2025281 PMAQI
28th Jul 2025252 PMAQI
28th Jul 2025233 PMAQI
28th Jul 2025224 PMAQI
28th Jul 2025255 PMAQI
28th Jul 2025266 PMAQI
28th Jul 2025257 PMAQI
28th Jul 2025288 PMAQI
28th Jul 2025349 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253111 PMAQI
29th Jul 20252912 AMAQI
29th Jul 2025321 AMAQI
29th Jul 2025282 AMAQI
29th Jul 2025283 AMAQI
30°C25/36°C
29th Jul 2025284 AMAQI
29th Jul 2025275 AMAQI
29th Jul 2025276 AMAQI
29th Jul 2025277 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025309 AMAQI
29th Jul 20253810 AMAQI
29th Jul 20254411 AMAQI
29th Jul 20254412 PMAQI
29th Jul 2025481 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025463 PMAQI
29th Jul 2025494 PMAQI
29th Jul 2025545 PMAQI
29th Jul 2025566 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025378 PMAQI
29th Jul 2025399 PMAQI
29th Jul 20254110 PMAQI
29th Jul 20254011 PMAQI
30th Jul 20253512 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025283 AMAQI
31°C26/37°C
30th Jul 2025304 AMAQI
30th Jul 2025325 AMAQI
30th Jul 2025326 AMAQI
30th Jul 2025327 AMAQI
30th Jul 2025328 AMAQI
30th Jul 2025409 AMAQI
30th Jul 20254510 AMAQI
30th Jul 20254611 AMAQI
30th Jul 20255312 PMAQI
30th Jul 2025551 PMAQI
30th Jul 2025562 PMAQI
30th Jul 2025533 PMAQI
30th Jul 2025564 PMAQI
30th Jul 2025535 PMAQI
30th Jul 2025546 PMAQI
30th Jul 2025597 PMAQI
30th Jul 2025608 PMAQI
30th Jul 2025489 PMAQI
30th Jul 20253910 PMAQI
30th Jul 20253811 PMAQI
31st Jul 20253812 AMAQI
31st Jul 2025361 AMAQI
31st Jul 2025322 AMAQI
31st Jul 2025323 AMAQI
31°C26/37°C
31st Jul 2025324 AMAQI
31st Jul 2025325 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025327 AMAQI
31st Jul 2025328 AMAQI
31st Jul 2025329 AMAQI
31st Jul 20253210 AMAQI
31st Jul 20254311 AMAQI
31st Jul 20254912 PMAQI
31st Jul 2025541 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025573 PMAQI
31st Jul 2025554 PMAQI
31st Jul 2025555 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025527 PMAQI
31st Jul 2025488 PMAQI
31st Jul 2025379 PMAQI
31st Jul 20253710 PMAQI
31st Jul 20253511 PMAQI
1st Aug 20253512 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025312 AMAQI
1st Aug 2025293 AMAQI
31°C26/37°C
1st Aug 2025334 AMAQI
1st Aug 2025335 AMAQI
1st Aug 2025346 AMAQI
1st Aug 2025347 AMAQI
1st Aug 2025358 AMAQI
1st Aug 2025459 AMAQI
1st Aug 20254710 AMAQI
1st Aug 20255511 AMAQI
1st Aug 20255412 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025582 PMAQI
1st Aug 2025613 PMAQI
1st Aug 2025624 PMAQI
1st Aug 2025615 PMAQI
1st Aug 2025616 PMAQI
1st Aug 2025597 PMAQI
1st Aug 2025568 PMAQI
1st Aug 2025519 PMAQI
1st Aug 20254610 PMAQI
1st Aug 20254411 PMAQI
2nd Aug 20254112 AMAQI
2nd Aug 2025341 AMAQI
2nd Aug 2025342 AMAQI
2nd Aug 2025343 AMAQI
30°C26/35°C
2nd Aug 2025374 AMAQI
2nd Aug 2025395 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025529 AMAQI
2nd Aug 20254910 AMAQI
2nd Aug 20255311 AMAQI
2nd Aug 20255112 PMAQI
2nd Aug 2025561 PMAQI
2nd Aug 2025592 PMAQI
2nd Aug 2025603 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025575 PMAQI
2nd Aug 2025566 PMAQI
2nd Aug 2025527 PMAQI
2nd Aug 2025508 PMAQI
2nd Aug 2025439 PMAQI
2nd Aug 20253910 PMAQI
2nd Aug 20254411 PMAQI
3rd Aug 20254612 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025393 AMAQI
--°C/°C
4 AM
11 AM
7 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
52AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
10 AM - 12 PM
42AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 52), while the lowest AQI was between 10 AM to 12 PM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 11 PM
50AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
50AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 50), while the lowest AQI was between 12 AM to 11 PM (Avg. 50).
2025 Days Vs Air Quality
Kusatsu, Shiga, Japan
2025
74%
158
26%
55
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
158 DaysModerate
55 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 74%
Health Risk Level:
Low
In 2025, 74% of 214 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
Kusatsu, Shiga, 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
31AQI
31AQI
2nd January 2025
37AQI
37AQI
3rd January 2025
30AQI
30AQI
4th January 2025
30AQI
30AQI
5th January 2025
29AQI
29AQI
6th January 2025
36AQI
36AQI
7th January 2025
35AQI
35AQI
8th January 2025
30AQI
30AQI
9th January 2025
32AQI
32AQI
10th January 2025
25AQI
25AQI
11th January 2025
25AQI
25AQI
12th January 2025
38AQI
38AQI
13th January 2025
30AQI
30AQI
14th January 2025
51AQI
51AQI
15th January 2025
39AQI
39AQI
16th January 2025
37AQI
37AQI
17th January 2025
33AQI
33AQI
18th January 2025
32AQI
32AQI
19th January 2025
38AQI
38AQI
20th January 2025
42AQI
42AQI
21st January 2025
37AQI
37AQI
22nd January 2025
46AQI
46AQI
23rd January 2025
65AQI
65AQI
24th January 2025
58AQI
58AQI
25th January 2025
45AQI
45AQI
26th January 2025
38AQI
38AQI
27th January 2025
34AQI
34AQI
28th January 2025
35AQI
35AQI
29th January 2025
31AQI
31AQI
30th January 2025
38AQI
38AQI
31st January 2025
74AQI
74AQI
1st February 2025
69AQI
69AQI
2nd February 2025
47AQI
47AQI
3rd February 2025
51AQI
51AQI
4th February 2025
39AQI
39AQI
5th February 2025
38AQI
38AQI
6th February 2025
33AQI
33AQI
7th February 2025
37AQI
37AQI
8th February 2025
30AQI
30AQI
9th February 2025
31AQI
31AQI
10th February 2025
29AQI
29AQI
11th February 2025
30AQI
30AQI
12th February 2025
35AQI
35AQI
13th February 2025
30AQI
30AQI
14th February 2025
33AQI
33AQI
15th February 2025
28AQI
28AQI
16th February 2025
37AQI
37AQI
17th February 2025
37AQI
37AQI
18th February 2025
32AQI
32AQI
19th February 2025
30AQI
30AQI
20th February 2025
28AQI
28AQI
21st February 2025
29AQI
29AQI
22nd February 2025
30AQI
30AQI
23rd February 2025
31AQI
31AQI
24th February 2025
31AQI
31AQI
25th February 2025
39AQI
39AQI
26th February 2025
45AQI
45AQI
27th February 2025
61AQI
61AQI
28th February 2025
65AQI
65AQI
1st March 2025
72AQI
72AQI
2nd March 2025
77AQI
77AQI
3rd March 2025
47AQI
47AQI
4th March 2025
45AQI
45AQI
5th March 2025
36AQI
36AQI
6th March 2025
38AQI
38AQI
7th March 2025
36AQI
36AQI
8th March 2025
38AQI
38AQI
9th March 2025
36AQI
36AQI
10th March 2025
40AQI
40AQI
11th March 2025
35AQI
35AQI
12th March 2025
31AQI
31AQI
13th March 2025
47AQI
47AQI
14th March 2025
39AQI
39AQI
15th March 2025
38AQI
38AQI
16th March 2025
22AQI
22AQI
17th March 2025
26AQI
26AQI
18th March 2025
27AQI
27AQI
19th March 2025
27AQI
27AQI
20th March 2025
42AQI
42AQI
21st March 2025
56AQI
56AQI
22nd March 2025
60AQI
60AQI
23rd March 2025
72AQI
72AQI
24th March 2025
74AQI
74AQI
25th March 2025
75AQI
75AQI
26th March 2025
81AQI
81AQI
27th March 2025
84AQI
84AQI
28th March 2025
46AQI
46AQI
29th March 2025
47AQI
47AQI
30th March 2025
33AQI
33AQI
31st March 2025
37AQI
37AQI
1st April 2025
30AQI
30AQI
2nd April 2025
29AQI
29AQI
3rd April 2025
21AQI
21AQI
4th April 2025
25AQI
25AQI
5th April 2025
38AQI
38AQI
6th April 2025
37AQI
37AQI
7th April 2025
47AQI
47AQI
8th April 2025
46AQI
46AQI
9th April 2025
45AQI
45AQI
10th April 2025
53AQI
53AQI
11th April 2025
52AQI
52AQI
12th April 2025
50AQI
50AQI
13th April 2025
31AQI
31AQI
14th April 2025
47AQI
47AQI
15th April 2025
25AQI
25AQI
16th April 2025
47AQI
47AQI
17th April 2025
48AQI
48AQI
18th April 2025
60AQI
60AQI
19th April 2025
60AQI
60AQI
20th April 2025
52AQI
52AQI
21st April 2025
43AQI
43AQI
22nd April 2025
49AQI
49AQI
23rd April 2025
26AQI
26AQI
24th April 2025
25AQI
25AQI
25th April 2025
62AQI
62AQI
26th April 2025
53AQI
53AQI
27th April 2025
60AQI
60AQI
28th April 2025
47AQI
47AQI
29th April 2025
56AQI
56AQI
30th April 2025
64AQI
64AQI
1st May 2025
56AQI
56AQI
2nd May 2025
38AQI
38AQI
3rd May 2025
47AQI
47AQI
4th May 2025
38AQI
38AQI
5th May 2025
44AQI
44AQI
6th May 2025
26AQI
26AQI
7th May 2025
29AQI
29AQI
8th May 2025
30AQI
30AQI
9th May 2025
33AQI
33AQI
10th May 2025
28AQI
28AQI
11th May 2025
33AQI
33AQI
12th May 2025
46AQI
46AQI
13th May 2025
52AQI
52AQI
14th May 2025
59AQI
59AQI
15th May 2025
55AQI
55AQI
16th May 2025
56AQI
56AQI
17th May 2025
41AQI
41AQI
18th May 2025
50AQI
50AQI
19th May 2025
52AQI
52AQI
20th May 2025
66AQI
66AQI
21st May 2025
49AQI
49AQI
22nd May 2025
35AQI
35AQI
23rd May 2025
52AQI
52AQI
24th May 2025
38AQI
38AQI
25th May 2025
27AQI
27AQI
26th May 2025
29AQI
29AQI
27th May 2025
31AQI
31AQI
28th May 2025
28AQI
28AQI
29th May 2025
39AQI
39AQI
30th May 2025
35AQI
35AQI
31st May 2025
32AQI
32AQI
1st June 2025
38AQI
38AQI
2nd June 2025
48AQI
48AQI
3rd June 2025
27AQI
27AQI
4th June 2025
43AQI
43AQI
5th June 2025
40AQI
40AQI
6th June 2025
44AQI
44AQI
7th June 2025
52AQI
52AQI
8th June 2025
64AQI
64AQI
9th June 2025
45AQI
45AQI
10th June 2025
29AQI
29AQI
11th June 2025
33AQI
33AQI
12th June 2025
40AQI
40AQI
13th June 2025
45AQI
45AQI
14th June 2025
32AQI
32AQI
15th June 2025
26AQI
26AQI
16th June 2025
39AQI
39AQI
17th June 2025
38AQI
38AQI
18th June 2025
48AQI
48AQI
19th June 2025
52AQI
52AQI
20th June 2025
57AQI
57AQI
21st June 2025
54AQI
54AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
44AQI
44AQI
24th June 2025
38AQI
38AQI
25th June 2025
37AQI
37AQI
26th June 2025
35AQI
35AQI
27th June 2025
49AQI
49AQI
28th June 2025
42AQI
42AQI
29th June 2025
47AQI
47AQI
30th June 2025
55AQI
55AQI
1st July 2025
62AQI
62AQI
2nd July 2025
90AQI
90AQI
3rd July 2025
83AQI
83AQI
4th July 2025
91AQI
91AQI
5th July 2025
94AQI
94AQI
6th July 2025
80AQI
80AQI
7th July 2025
69AQI
69AQI
8th July 2025
77AQI
77AQI
9th July 2025
84AQI
84AQI
10th July 2025
67AQI
67AQI
11th July 2025
56AQI
56AQI
12th July 2025
56AQI
56AQI
13th July 2025
53AQI
53AQI
14th July 2025
43AQI
43AQI
15th July 2025
48AQI
48AQI
16th July 2025
49AQI
49AQI
17th July 2025
38AQI
38AQI
18th July 2025
39AQI
39AQI
19th July 2025
34AQI
34AQI
20th July 2025
31AQI
31AQI
21st July 2025
31AQI
31AQI
22nd July 2025
35AQI
35AQI
23rd July 2025
40AQI
40AQI
24th July 2025
39AQI
39AQI
25th July 2025
34AQI
34AQI
26th July 2025
27AQI
27AQI
27th July 2025
26AQI
26AQI
28th July 2025
28AQI
28AQI
29th July 2025
38AQI
38AQI
30th July 2025
43AQI
43AQI
31st July 2025
41AQI
41AQI
1st August 2025
44AQI
44AQI
38AQI
38AQI
47AQI
44AQI
41AQI
43AQI
52AQI
44AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202544AQI
27
4
24
4
22
9
20
10
23
8
23
7
18
13
1
158
55
Highest AQI recorded in
July52AQI
Lowest AQI recorded in
February38AQI
202436AQI
29
2
27
2
24
7
23
6
1
29
2
27
3
27
4
29
2
28
2
30
1
28
2
31
332
33
1
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
October31AQI
202339AQI
25
6
26
2
21
10
16
14
27
4
23
7
27
4
31
29
1
30
1
24
5
25
6
304
60
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
August29AQI
202238AQI
30
1
18
3
23
8
13
5
21
10
24
6
16
6
1
29
31
26
4
31
263
43
Highest AQI recorded in
May45AQI
Lowest AQI recorded in
August26AQI
202134AQI
26
5
22
6
28
3
21
2
28
3
25
5
30
1
30
1
28
2
31
25
5
26
5
320
38
Highest AQI recorded in
June40AQI
Lowest AQI recorded in
August28AQI
202033AQI
11
2
18
3
18
24
6
28
3
18
13
19
30
1
28
2
29
2
223
32
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
July26AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
44AQILeast Polluted Year Recorded
2020(Avg.)
33AQIKusatsu's annual 2025 AQI (44) shows an average percentage change of 21.9% (worsened AQI) compared to previous years: 2020 (33), 2021 (34), 2022 (38), 2023 (39), 2024 (36).
