Kusatsucho, 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+
October Air Quality Analysis
Kusatsucho, Kusatsu, Shiga, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
8th Oct 2025
55AQILowest AQI recorded on
9th Oct 2022
19AQISame Day Analysis (16th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 36 of Good air quality, showing improvement over 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 16th Oct - 17th Oct 2025
Kusatsucho, Kusatsu, Shiga, Japan
AQI
Day
Night
.
5 AM16th Oct 2025
5 PM
4 AM17th Oct 2025
Day time
Avg. Highest Time
3PM16th Oct
45AQI
Avg. Lowest Time
12PM16th Oct
20AQI
Night time
Avg. Highest Time
4AM17th Oct
47AQI
Avg. Lowest Time
6PM16th Oct
18AQI
In the last 24 hours,
Kusatsucho's AQI reached its highest point of 47 at 4 AM during the Night, while the lowest point, 18, was recorded at 6 PM during the Night between 16th Oct and 17th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kusatsucho, Kusatsu, Shiga, Japan
SepOct
17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th
Day
Night
17th Sep 2025385 AMAQI
17th Sep 2025386 AMAQI
17th Sep 2025377 AMAQI
17th Sep 2025388 AMAQI
17th Sep 2025509 AMAQI
17th Sep 20255510 AMAQI
17th Sep 20255511 AMAQI
17th Sep 20256012 PMAQI
17th Sep 2025631 PMAQI
17th Sep 2025642 PMAQI
17th Sep 2025593 PMAQI
17th Sep 2025554 PMAQI
17th Sep 2025585 PMAQI
17th Sep 2025606 PMAQI
17th Sep 2025567 PMAQI
17th Sep 2025588 PMAQI
17th Sep 2025559 PMAQI
17th Sep 20255810 PMAQI
17th Sep 20255911 PMAQI
18th Sep 20256012 AMAQI
18th Sep 2025561 AMAQI
18th Sep 2025392 AMAQI
18th Sep 2025383 AMAQI
18th Sep 2025424 AMAQI
27°C24/31°C
18th Sep 2025455 AMAQI
18th Sep 2025466 AMAQI
18th Sep 2025467 AMAQI
18th Sep 2025468 AMAQI
18th Sep 2025549 AMAQI
18th Sep 20254810 AMAQI
18th Sep 20253811 AMAQI
18th Sep 20252912 PMAQI
18th Sep 2025311 PMAQI
18th Sep 2025232 PMAQI
18th Sep 2025223 PMAQI
18th Sep 2025224 PMAQI
18th Sep 2025195 PMAQI
18th Sep 2025146 PMAQI
18th Sep 2025147 PMAQI
18th Sep 2025218 PMAQI
18th Sep 2025309 PMAQI
18th Sep 20253310 PMAQI
18th Sep 20253311 PMAQI
19th Sep 20253412 AMAQI
19th Sep 2025391 AMAQI
19th Sep 2025492 AMAQI
19th Sep 2025483 AMAQI
19th Sep 2025474 AMAQI
25°C23/30°C
19th Sep 2025465 AMAQI
19th Sep 2025466 AMAQI
19th Sep 2025467 AMAQI
19th Sep 2025468 AMAQI
19th Sep 2025249 AMAQI
19th Sep 20251810 AMAQI
19th Sep 20251711 AMAQI
19th Sep 20251612 PMAQI
19th Sep 2025161 PMAQI
19th Sep 2025182 PMAQI
19th Sep 2025203 PMAQI
19th Sep 2025204 PMAQI
19th Sep 2025225 PMAQI
19th Sep 2025226 PMAQI
19th Sep 2025287 PMAQI
19th Sep 2025308 PMAQI
19th Sep 2025369 PMAQI
19th Sep 20253410 PMAQI
19th Sep 20253411 PMAQI
20th Sep 20253412 AMAQI
20th Sep 2025381 AMAQI
20th Sep 2025442 AMAQI
20th Sep 2025433 AMAQI
20th Sep 2025414 AMAQI
24°C22/29°C
20th Sep 2025385 AMAQI
20th Sep 2025386 AMAQI
20th Sep 2025387 AMAQI
20th Sep 2025388 AMAQI
20th Sep 2025339 AMAQI
20th Sep 20253010 AMAQI
20th Sep 20252411 AMAQI
20th Sep 20252012 PMAQI
20th Sep 2025231 PMAQI
20th Sep 2025282 PMAQI
20th Sep 2025273 PMAQI
20th Sep 2025234 PMAQI
20th Sep 2025185 PMAQI
20th Sep 2025226 PMAQI
20th Sep 2025227 PMAQI
20th Sep 2025288 PMAQI
20th Sep 2025339 PMAQI
20th Sep 20253310 PMAQI
20th Sep 20254011 PMAQI
21st Sep 20254812 AMAQI
21st Sep 2025491 AMAQI
21st Sep 2025402 AMAQI
21st Sep 2025403 AMAQI
21st Sep 2025384 AMAQI
23°C22/23°C
21st Sep 2025375 AMAQI
21st Sep 2025376 AMAQI
21st Sep 2025377 AMAQI
21st Sep 2025378 AMAQI
21st Sep 2025209 AMAQI
21st Sep 20251410 AMAQI
21st Sep 20251411 AMAQI
21st Sep 20251312 PMAQI
21st Sep 2025141 PMAQI
21st Sep 2025132 PMAQI
21st Sep 2025133 PMAQI
21st Sep 2025144 PMAQI
21st Sep 2025145 PMAQI
21st Sep 2025156 PMAQI
21st Sep 2025157 PMAQI
21st Sep 2025218 PMAQI
21st Sep 2025319 PMAQI
21st Sep 20253110 PMAQI
21st Sep 20253011 PMAQI
22nd Sep 20253212 AMAQI
22nd Sep 2025341 AMAQI
22nd Sep 2025412 AMAQI
22nd Sep 2025413 AMAQI
22nd Sep 2025394 AMAQI
23°C20/27°C
22nd Sep 2025345 AMAQI
22nd Sep 2025366 AMAQI
22nd Sep 2025367 AMAQI
22nd Sep 2025368 AMAQI
22nd Sep 2025219 AMAQI
22nd Sep 20251810 AMAQI
22nd Sep 20251611 AMAQI
22nd Sep 20251712 PMAQI
22nd Sep 2025191 PMAQI
22nd Sep 2025222 PMAQI
22nd Sep 2025213 PMAQI
22nd Sep 2025244 PMAQI
22nd Sep 2025225 PMAQI
22nd Sep 2025246 PMAQI
22nd Sep 2025247 PMAQI
22nd Sep 2025278 PMAQI
22nd Sep 2025339 PMAQI
22nd Sep 20253410 PMAQI
22nd Sep 20253211 PMAQI
23rd Sep 20253212 AMAQI
23rd Sep 2025331 AMAQI
23rd Sep 2025362 AMAQI
23rd Sep 2025363 AMAQI
23rd Sep 2025344 AMAQI
22°C18/26°C
23rd Sep 2025325 AMAQI
23rd Sep 2025326 AMAQI
23rd Sep 2025327 AMAQI
23rd Sep 2025328 AMAQI
23rd Sep 2025259 AMAQI
23rd Sep 20252210 AMAQI
23rd Sep 20252311 AMAQI
23rd Sep 20252512 PMAQI
23rd Sep 2025271 PMAQI
23rd Sep 2025302 PMAQI
23rd Sep 2025353 PMAQI
23rd Sep 2025354 PMAQI
23rd Sep 2025355 PMAQI
23rd Sep 2025336 PMAQI
23rd Sep 2025317 PMAQI
23rd Sep 2025318 PMAQI
23rd Sep 2025299 PMAQI
23rd Sep 20253010 PMAQI
23rd Sep 20253011 PMAQI
24th Sep 20253012 AMAQI
24th Sep 2025321 AMAQI
24th Sep 2025342 AMAQI
24th Sep 2025343 AMAQI
24th Sep 2025334 AMAQI
21°C20/24°C
24th Sep 2025325 AMAQI
24th Sep 2025326 AMAQI
24th Sep 2025327 AMAQI
24th Sep 2025328 AMAQI
24th Sep 2025329 AMAQI
24th Sep 20253410 AMAQI
24th Sep 20253411 AMAQI
24th Sep 20253212 PMAQI
24th Sep 2025321 PMAQI
24th Sep 2025322 PMAQI
24th Sep 2025303 PMAQI
24th Sep 2025304 PMAQI
24th Sep 2025305 PMAQI
24th Sep 2025286 PMAQI
24th Sep 2025267 PMAQI
24th Sep 2025268 PMAQI
24th Sep 2025299 PMAQI
24th Sep 20252910 PMAQI
24th Sep 20253011 PMAQI
25th Sep 20253112 AMAQI
25th Sep 2025321 AMAQI
25th Sep 2025322 AMAQI
25th Sep 2025323 AMAQI
25th Sep 2025334 AMAQI
22°C21/25°C
25th Sep 2025325 AMAQI
25th Sep 2025326 AMAQI
25th Sep 2025327 AMAQI
25th Sep 2025328 AMAQI
25th Sep 2025269 AMAQI
25th Sep 20252510 AMAQI
25th Sep 20252411 AMAQI
25th Sep 20252812 PMAQI
25th Sep 2025281 PMAQI
25th Sep 2025302 PMAQI
25th Sep 2025313 PMAQI
25th Sep 2025324 PMAQI
25th Sep 2025325 PMAQI
25th Sep 2025296 PMAQI
25th Sep 2025297 PMAQI
25th Sep 2025288 PMAQI
25th Sep 2025279 PMAQI
25th Sep 20252510 PMAQI
25th Sep 20253011 PMAQI
26th Sep 20253512 AMAQI
26th Sep 2025291 AMAQI
26th Sep 2025262 AMAQI
26th Sep 2025303 AMAQI
26th Sep 2025334 AMAQI
24°C22/27°C
26th Sep 2025325 AMAQI
26th Sep 2025336 AMAQI
26th Sep 2025327 AMAQI
26th Sep 2025308 AMAQI
26th Sep 2025329 AMAQI
26th Sep 20253410 AMAQI
26th Sep 20253411 AMAQI
26th Sep 20253812 PMAQI
26th Sep 2025391 PMAQI
26th Sep 2025392 PMAQI
26th Sep 2025443 PMAQI
26th Sep 2025484 PMAQI
26th Sep 2025435 PMAQI
26th Sep 2025306 PMAQI
26th Sep 2025287 PMAQI
26th Sep 2025258 PMAQI
26th Sep 2025249 PMAQI
26th Sep 20252610 PMAQI
26th Sep 20252811 PMAQI
27th Sep 20253012 AMAQI
27th Sep 2025321 AMAQI
27th Sep 2025332 AMAQI
27th Sep 2025313 AMAQI
27th Sep 2025284 AMAQI
25°C21/29°C
27th Sep 2025245 AMAQI
27th Sep 2025186 AMAQI
27th Sep 2025207 AMAQI
27th Sep 2025228 AMAQI
27th Sep 2025229 AMAQI
27th Sep 20253110 AMAQI
27th Sep 20253611 AMAQI
27th Sep 20253812 PMAQI
27th Sep 2025361 PMAQI
27th Sep 2025282 PMAQI
27th Sep 2025273 PMAQI
27th Sep 2025274 PMAQI
27th Sep 2025265 PMAQI
27th Sep 2025246 PMAQI
27th Sep 2025277 PMAQI
27th Sep 2025248 PMAQI
27th Sep 2025219 PMAQI
27th Sep 20251810 PMAQI
27th Sep 20251811 PMAQI
28th Sep 20252212 AMAQI
28th Sep 2025181 AMAQI
28th Sep 2025172 AMAQI
28th Sep 2025173 AMAQI
28th Sep 2025184 AMAQI
22°C19/27°C
28th Sep 2025195 AMAQI
28th Sep 2025176 AMAQI
28th Sep 2025207 AMAQI
28th Sep 2025188 AMAQI
28th Sep 2025189 AMAQI
28th Sep 20252210 AMAQI
28th Sep 20252211 AMAQI
28th Sep 20252612 PMAQI
28th Sep 2025351 PMAQI
28th Sep 2025392 PMAQI
28th Sep 2025353 PMAQI
28th Sep 2025374 PMAQI
28th Sep 2025395 PMAQI
28th Sep 2025356 PMAQI
28th Sep 2025337 PMAQI
28th Sep 2025308 PMAQI
28th Sep 2025319 PMAQI
28th Sep 20253010 PMAQI
28th Sep 20253211 PMAQI
29th Sep 20253312 AMAQI
29th Sep 2025331 AMAQI
29th Sep 2025312 AMAQI
29th Sep 2025313 AMAQI
29th Sep 2025414 AMAQI
23°C18/27°C
29th Sep 2025445 AMAQI
29th Sep 2025446 AMAQI
29th Sep 2025417 AMAQI
29th Sep 2025298 AMAQI
29th Sep 2025269 AMAQI
29th Sep 20252810 AMAQI
29th Sep 20252611 AMAQI
29th Sep 20252112 PMAQI
29th Sep 2025201 PMAQI
29th Sep 2025222 PMAQI
29th Sep 2025223 PMAQI
29th Sep 2025224 PMAQI
29th Sep 2025255 PMAQI
29th Sep 2025216 PMAQI
29th Sep 2025167 PMAQI
29th Sep 2025168 PMAQI
29th Sep 2025159 PMAQI
29th Sep 20251610 PMAQI
29th Sep 20251311 PMAQI
30th Sep 20251012 AMAQI
30th Sep 2025121 AMAQI
30th Sep 2025132 AMAQI
30th Sep 2025153 AMAQI
30th Sep 2025154 AMAQI
23°C20/27°C
30th Sep 2025195 AMAQI
30th Sep 2025176 AMAQI
30th Sep 2025167 AMAQI
30th Sep 2025178 AMAQI
30th Sep 2025179 AMAQI
30th Sep 20252610 AMAQI
30th Sep 20252211 AMAQI
30th Sep 20251812 PMAQI
30th Sep 2025241 PMAQI
30th Sep 2025192 PMAQI
30th Sep 2025123 PMAQI
30th Sep 2025244 PMAQI
30th Sep 2025275 PMAQI
30th Sep 2025196 PMAQI
30th Sep 2025137 PMAQI
30th Sep 2025168 PMAQI
30th Sep 2025209 PMAQI
30th Sep 20252710 PMAQI
30th Sep 20251611 PMAQI
1st Oct 20251212 AMAQI
1st Oct 2025151 AMAQI
1st Oct 2025132 AMAQI
1st Oct 2025183 AMAQI
1st Oct 2025184 AMAQI
22°C18/27°C
1st Oct 2025225 AMAQI
1st Oct 2025296 AMAQI
1st Oct 2025257 AMAQI
1st Oct 2025258 AMAQI
1st Oct 2025239 AMAQI
1st Oct 20252410 AMAQI
1st Oct 20252611 AMAQI
1st Oct 20252512 PMAQI
1st Oct 2025291 PMAQI
1st Oct 2025332 PMAQI
1st Oct 2025383 PMAQI
1st Oct 2025444 PMAQI
1st Oct 2025445 PMAQI
1st Oct 2025426 PMAQI
1st Oct 2025357 PMAQI
1st Oct 2025248 PMAQI
1st Oct 2025259 PMAQI
1st Oct 20253610 PMAQI
1st Oct 20253911 PMAQI
2nd Oct 20253912 AMAQI
2nd Oct 2025421 AMAQI
2nd Oct 2025452 AMAQI
2nd Oct 2025403 AMAQI
2nd Oct 2025424 AMAQI
21°C18/26°C
2nd Oct 2025375 AMAQI
2nd Oct 2025356 AMAQI
2nd Oct 2025367 AMAQI
2nd Oct 2025378 AMAQI
2nd Oct 2025419 AMAQI
2nd Oct 20254310 AMAQI
2nd Oct 20253511 AMAQI
2nd Oct 20254212 PMAQI
2nd Oct 2025481 PMAQI
2nd Oct 2025352 PMAQI
2nd Oct 2025373 PMAQI
2nd Oct 2025404 PMAQI
2nd Oct 2025405 PMAQI
2nd Oct 2025436 PMAQI
2nd Oct 2025337 PMAQI
2nd Oct 2025558 PMAQI
2nd Oct 2025559 PMAQI
2nd Oct 20255510 PMAQI
2nd Oct 20254011 PMAQI
3rd Oct 20254212 AMAQI
3rd Oct 2025421 AMAQI
3rd Oct 2025442 AMAQI
3rd Oct 2025493 AMAQI
3rd Oct 2025484 AMAQI
21°C17/26°C
3rd Oct 2025455 AMAQI
3rd Oct 2025446 AMAQI
3rd Oct 2025387 AMAQI
3rd Oct 2025398 AMAQI
3rd Oct 2025509 AMAQI
3rd Oct 20255010 AMAQI
3rd Oct 20254911 AMAQI
3rd Oct 20254412 PMAQI
3rd Oct 2025451 PMAQI
3rd Oct 2025462 PMAQI
3rd Oct 2025493 PMAQI
3rd Oct 2025404 PMAQI
3rd Oct 2025375 PMAQI
3rd Oct 2025386 PMAQI
3rd Oct 2025367 PMAQI
3rd Oct 2025398 PMAQI
3rd Oct 2025589 PMAQI
3rd Oct 20255610 PMAQI
3rd Oct 20255111 PMAQI
4th Oct 20255112 AMAQI
4th Oct 2025501 AMAQI
4th Oct 2025512 AMAQI
4th Oct 2025483 AMAQI
4th Oct 2025444 AMAQI
21°C19/23°C
4th Oct 2025475 AMAQI
4th Oct 2025496 AMAQI
4th Oct 2025447 AMAQI
4th Oct 2025408 AMAQI
4th Oct 2025419 AMAQI
4th Oct 20255510 AMAQI
4th Oct 20255111 AMAQI
4th Oct 20254812 PMAQI
4th Oct 2025481 PMAQI
4th Oct 2025462 PMAQI
4th Oct 2025443 PMAQI
4th Oct 2025394 PMAQI
4th Oct 2025515 PMAQI
4th Oct 2025526 PMAQI
4th Oct 2025537 PMAQI
4th Oct 2025548 PMAQI
4th Oct 2025519 PMAQI
4th Oct 20254510 PMAQI
4th Oct 20255011 PMAQI
5th Oct 20253812 AMAQI
5th Oct 2025511 AMAQI
5th Oct 2025522 AMAQI
5th Oct 2025543 AMAQI
5th Oct 2025584 AMAQI
20°C20/20°C
5th Oct 2025545 AMAQI
5th Oct 2025516 AMAQI
5th Oct 2025487 AMAQI
5th Oct 2025428 AMAQI
5th Oct 2025439 AMAQI
5th Oct 20254210 AMAQI
5th Oct 20253611 AMAQI
5th Oct 20253912 PMAQI
5th Oct 2025401 PMAQI
5th Oct 2025402 PMAQI
5th Oct 2025493 PMAQI
5th Oct 2025424 PMAQI
5th Oct 2025415 PMAQI
5th Oct 2025526 PMAQI
5th Oct 2025547 PMAQI
5th Oct 2025198 PMAQI
5th Oct 2025219 PMAQI
5th Oct 20252410 PMAQI
5th Oct 20253611 PMAQI
6th Oct 20252812 AMAQI
6th Oct 2025421 AMAQI
6th Oct 2025472 AMAQI
6th Oct 2025463 AMAQI
6th Oct 2025464 AMAQI
21°C20/22°C
6th Oct 2025375 AMAQI
6th Oct 2025326 AMAQI
6th Oct 2025457 AMAQI
6th Oct 2025488 AMAQI
6th Oct 2025449 AMAQI
6th Oct 20254310 AMAQI
6th Oct 20254211 AMAQI
6th Oct 20254612 PMAQI
6th Oct 2025471 PMAQI
6th Oct 2025472 PMAQI
6th Oct 2025533 PMAQI
6th Oct 2025564 PMAQI
6th Oct 2025575 PMAQI
6th Oct 2025616 PMAQI
6th Oct 2025627 PMAQI
6th Oct 2025648 PMAQI
6th Oct 2025609 PMAQI
6th Oct 20255610 PMAQI
6th Oct 20256311 PMAQI
7th Oct 20256612 AMAQI
7th Oct 2025681 AMAQI
7th Oct 2025582 AMAQI
22°C19/26°C
7th Oct 2025498 PMAQI
7th Oct 2025309 PMAQI
7th Oct 20253410 PMAQI
7th Oct 20253111 PMAQI
8th Oct 20255112 AMAQI
8th Oct 2025491 AMAQI
8th Oct 2025492 AMAQI
8th Oct 2025523 AMAQI
8th Oct 2025544 AMAQI
23°C20/27°C
8th Oct 2025565 AMAQI
8th Oct 2025566 AMAQI
8th Oct 2025527 AMAQI
8th Oct 2025518 AMAQI
8th Oct 2025529 AMAQI
8th Oct 20255510 AMAQI
8th Oct 20255511 AMAQI
8th Oct 20255612 PMAQI
8th Oct 2025571 PMAQI
8th Oct 2025602 PMAQI
8th Oct 2025573 PMAQI
8th Oct 2025584 PMAQI
8th Oct 2025575 PMAQI
8th Oct 2025586 PMAQI
8th Oct 2025567 PMAQI
8th Oct 2025588 PMAQI
8th Oct 2025549 PMAQI
8th Oct 20255310 PMAQI
8th Oct 20255511 PMAQI
9th Oct 20255712 AMAQI
9th Oct 2025551 AMAQI
9th Oct 2025542 AMAQI
9th Oct 2025543 AMAQI
9th Oct 2025444 AMAQI
23°C20/28°C
9th Oct 2025405 AMAQI
9th Oct 2025436 AMAQI
9th Oct 2025437 AMAQI
9th Oct 2025468 AMAQI
9th Oct 2025469 AMAQI
9th Oct 20254410 AMAQI
9th Oct 20253611 AMAQI
9th Oct 20254612 PMAQI
9th Oct 2025521 PMAQI
9th Oct 2025552 PMAQI
9th Oct 2025553 PMAQI
9th Oct 2025594 PMAQI
9th Oct 2025565 PMAQI
9th Oct 2025566 PMAQI
9th Oct 2025567 PMAQI
9th Oct 2025558 PMAQI
9th Oct 2025549 PMAQI
9th Oct 20255510 PMAQI
9th Oct 20255111 PMAQI
10th Oct 20255412 AMAQI
10th Oct 2025541 AMAQI
10th Oct 2025562 AMAQI
10th Oct 2025563 AMAQI
10th Oct 2025554 AMAQI
21°C18/25°C
10th Oct 2025535 AMAQI
10th Oct 2025526 AMAQI
10th Oct 2025507 AMAQI
10th Oct 2025518 AMAQI
10th Oct 2025549 AMAQI
10th Oct 20255410 AMAQI
10th Oct 20255311 AMAQI
10th Oct 20255012 PMAQI
10th Oct 2025481 PMAQI
10th Oct 2025492 PMAQI
10th Oct 2025533 PMAQI
10th Oct 2025544 PMAQI
10th Oct 2025595 PMAQI
10th Oct 2025606 PMAQI
10th Oct 2025627 PMAQI
10th Oct 2025628 PMAQI
10th Oct 2025559 PMAQI
10th Oct 20254810 PMAQI
10th Oct 20255311 PMAQI
11th Oct 20255212 AMAQI
11th Oct 2025511 AMAQI
11th Oct 2025562 AMAQI
11th Oct 2025573 AMAQI
11th Oct 2025594 AMAQI
20°C17/23°C
11th Oct 2025555 AMAQI
11th Oct 2025426 AMAQI
11th Oct 2025447 AMAQI
11th Oct 2025458 AMAQI
11th Oct 2025489 AMAQI
11th Oct 20254210 AMAQI
11th Oct 20254611 AMAQI
11th Oct 20255112 PMAQI
11th Oct 2025491 PMAQI
11th Oct 2025532 PMAQI
11th Oct 2025443 PMAQI
11th Oct 2025474 PMAQI
11th Oct 2025495 PMAQI
11th Oct 2025516 PMAQI
11th Oct 2025487 PMAQI
11th Oct 2025508 PMAQI
11th Oct 2025429 PMAQI
11th Oct 20253710 PMAQI
11th Oct 20253811 PMAQI
12th Oct 20254112 AMAQI
12th Oct 2025331 AMAQI
12th Oct 2025342 AMAQI
12th Oct 2025403 AMAQI
12th Oct 2025424 AMAQI
21°C19/23°C
12th Oct 2025385 AMAQI
12th Oct 2025386 AMAQI
12th Oct 2025297 AMAQI
12th Oct 2025398 AMAQI
12th Oct 2025409 AMAQI
12th Oct 20253910 AMAQI
12th Oct 20254811 AMAQI
12th Oct 20253712 PMAQI
12th Oct 2025431 PMAQI
12th Oct 2025482 PMAQI
12th Oct 2025493 PMAQI
12th Oct 2025454 PMAQI
12th Oct 2025475 PMAQI
12th Oct 2025456 PMAQI
12th Oct 2025437 PMAQI
12th Oct 2025438 PMAQI
12th Oct 2025489 PMAQI
12th Oct 20254810 PMAQI
12th Oct 20255011 PMAQI
13th Oct 20255112 AMAQI
13th Oct 2025561 AMAQI
13th Oct 2025562 AMAQI
13th Oct 2025553 AMAQI
13th Oct 2025624 AMAQI
22°C20/24°C
13th Oct 2025565 AMAQI
13th Oct 2025536 AMAQI
13th Oct 2025547 AMAQI
13th Oct 2025568 AMAQI
13th Oct 2025569 AMAQI
13th Oct 20255610 AMAQI
13th Oct 20255511 AMAQI
13th Oct 20253812 PMAQI
13th Oct 2025201 PMAQI
13th Oct 2025372 PMAQI
13th Oct 2025483 PMAQI
13th Oct 2025484 PMAQI
13th Oct 2025485 PMAQI
13th Oct 2025456 PMAQI
13th Oct 2025467 PMAQI
13th Oct 2025478 PMAQI
13th Oct 2025439 PMAQI
13th Oct 20251210 PMAQI
13th Oct 20252211 PMAQI
14th Oct 20255412 AMAQI
14th Oct 2025541 AMAQI
14th Oct 2025552 AMAQI
14th Oct 2025553 AMAQI
14th Oct 2025494 AMAQI
22°C20/26°C
14th Oct 2025425 AMAQI
14th Oct 2025446 AMAQI
14th Oct 2025407 AMAQI
14th Oct 2025398 AMAQI
14th Oct 2025399 AMAQI
14th Oct 20255010 AMAQI
14th Oct 20255211 AMAQI
14th Oct 20255312 PMAQI
14th Oct 2025521 PMAQI
14th Oct 2025512 PMAQI
14th Oct 2025483 PMAQI
14th Oct 2025514 PMAQI
14th Oct 2025565 PMAQI
14th Oct 2025566 PMAQI
14th Oct 2025617 PMAQI
14th Oct 2025628 PMAQI
14th Oct 2025599 PMAQI
14th Oct 20256110 PMAQI
14th Oct 20254611 PMAQI
15th Oct 20255212 AMAQI
15th Oct 2025561 AMAQI
15th Oct 2025572 AMAQI
15th Oct 2025523 AMAQI
15th Oct 2025454 AMAQI
22°C19/28°C
15th Oct 2025385 AMAQI
15th Oct 2025226 AMAQI
15th Oct 2025157 AMAQI
15th Oct 2025208 AMAQI
15th Oct 2025329 AMAQI
15th Oct 20253010 AMAQI
15th Oct 20251511 AMAQI
15th Oct 20253812 PMAQI
15th Oct 2025431 PMAQI
15th Oct 2025422 PMAQI
15th Oct 2025403 PMAQI
15th Oct 2025384 PMAQI
15th Oct 2025405 PMAQI
15th Oct 2025406 PMAQI
15th Oct 2025487 PMAQI
15th Oct 2025528 PMAQI
15th Oct 2025549 PMAQI
15th Oct 20254110 PMAQI
15th Oct 20254011 PMAQI
16th Oct 20253612 AMAQI
16th Oct 2025391 AMAQI
16th Oct 2025352 AMAQI
16th Oct 2025373 AMAQI
16th Oct 2025394 AMAQI
21°C20/25°C
16th Oct 2025415 AMAQI
16th Oct 2025406 AMAQI
16th Oct 2025347 AMAQI
16th Oct 2025348 AMAQI
16th Oct 2025369 AMAQI
16th Oct 20253810 AMAQI
16th Oct 20252411 AMAQI
16th Oct 20252012 PMAQI
16th Oct 2025221 PMAQI
16th Oct 2025292 PMAQI
16th Oct 2025453 PMAQI
16th Oct 2025324 PMAQI
16th Oct 2025235 PMAQI
16th Oct 2025186 PMAQI
16th Oct 2025337 PMAQI
16th Oct 2025438 PMAQI
16th Oct 2025469 PMAQI
16th Oct 20254510 PMAQI
16th Oct 20253411 PMAQI
17th Oct 20254112 AMAQI
17th Oct 2025401 AMAQI
17th Oct 2025442 AMAQI
17th Oct 2025453 AMAQI
17th Oct 2025474 AMAQI
21°C20/23°C
17th Oct 2025415 AMAQI
5 AM17th Oct 2025396 AMAQI
17th Oct 2025407 AMAQI
17th Oct 2025428 AMAQI
17th Oct 2025449 AMAQI
17th Oct 20253910 AMAQI
11 AM
5 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 10 AM
37AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
11 AM - 5 PM
37AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 10 AM (Avg. 37), while the lowest AQI was between 11 AM to 5 PM (Avg. 37).
Night time
Avg. Highest Time
12 AM - 4 AM
41AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
6 PM - 11 PM
38AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 41), while the lowest AQI was between 6 PM to 11 PM (Avg. 38).
2025 Days Vs Air Quality
Kusatsucho, Kusatsu, Shiga, Japan
2025
75%
217
25%
72
Total number of days with different AQI categories in last 290 days in 2025 (75 days remaining)
Good
217 DaysModerate
72 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 75%
Health Risk Level:
Low
In 2025, 75% of 290 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
Kusatsucho, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
30AQI
30AQI
2nd January 2025
37AQI
37AQI
3rd January 2025
30AQI
30AQI
4th January 2025
30AQI
30AQI
5th January 2025
29AQI
29AQI
6th January 2025
38AQI
38AQI
7th January 2025
35AQI
35AQI
8th January 2025
31AQI
31AQI
9th January 2025
33AQI
33AQI
10th January 2025
25AQI
25AQI
11th January 2025
26AQI
26AQI
12th January 2025
42AQI
42AQI
13th January 2025
31AQI
31AQI
14th January 2025
53AQI
53AQI
15th January 2025
40AQI
40AQI
16th January 2025
37AQI
37AQI
17th January 2025
33AQI
33AQI
18th January 2025
32AQI
32AQI
19th January 2025
40AQI
40AQI
20th January 2025
44AQI
44AQI
21st January 2025
38AQI
38AQI
22nd January 2025
48AQI
48AQI
23rd January 2025
69AQI
69AQI
24th January 2025
60AQI
60AQI
25th January 2025
45AQI
45AQI
26th January 2025
39AQI
39AQI
27th January 2025
35AQI
35AQI
28th January 2025
35AQI
35AQI
29th January 2025
32AQI
32AQI
30th January 2025
38AQI
38AQI
31st January 2025
76AQI
76AQI
1st February 2025
71AQI
71AQI
2nd February 2025
48AQI
48AQI
3rd February 2025
53AQI
53AQI
4th February 2025
38AQI
38AQI
5th February 2025
38AQI
38AQI
6th February 2025
33AQI
33AQI
7th February 2025
39AQI
39AQI
8th February 2025
30AQI
30AQI
9th February 2025
32AQI
32AQI
10th February 2025
29AQI
29AQI
11th February 2025
30AQI
30AQI
12th February 2025
37AQI
37AQI
13th February 2025
31AQI
31AQI
14th February 2025
34AQI
34AQI
15th February 2025
29AQI
29AQI
16th February 2025
39AQI
39AQI
17th February 2025
38AQI
38AQI
18th February 2025
32AQI
32AQI
19th February 2025
31AQI
31AQI
20th February 2025
29AQI
29AQI
21st February 2025
30AQI
30AQI
22nd February 2025
30AQI
30AQI
23rd February 2025
32AQI
32AQI
24th February 2025
31AQI
31AQI
25th February 2025
39AQI
39AQI
26th February 2025
47AQI
47AQI
27th February 2025
61AQI
61AQI
28th February 2025
68AQI
68AQI
1st March 2025
75AQI
75AQI
2nd March 2025
82AQI
82AQI
3rd March 2025
48AQI
48AQI
4th March 2025
47AQI
47AQI
5th March 2025
37AQI
37AQI
6th March 2025
39AQI
39AQI
7th March 2025
37AQI
37AQI
8th March 2025
38AQI
38AQI
9th March 2025
37AQI
37AQI
10th March 2025
40AQI
40AQI
11th March 2025
37AQI
37AQI
12th March 2025
33AQI
33AQI
13th March 2025
49AQI
49AQI
14th March 2025
40AQI
40AQI
15th March 2025
39AQI
39AQI
16th March 2025
22AQI
22AQI
17th March 2025
26AQI
26AQI
18th March 2025
28AQI
28AQI
19th March 2025
27AQI
27AQI
20th March 2025
43AQI
43AQI
21st March 2025
58AQI
58AQI
22nd March 2025
61AQI
61AQI
23rd March 2025
74AQI
74AQI
24th March 2025
76AQI
76AQI
25th March 2025
77AQI
77AQI
26th March 2025
81AQI
81AQI
27th March 2025
85AQI
85AQI
28th March 2025
45AQI
45AQI
29th March 2025
48AQI
48AQI
30th March 2025
33AQI
33AQI
31st March 2025
37AQI
37AQI
1st April 2025
31AQI
31AQI
2nd April 2025
30AQI
30AQI
3rd April 2025
22AQI
22AQI
4th April 2025
24AQI
24AQI
5th April 2025
40AQI
40AQI
6th April 2025
38AQI
38AQI
7th April 2025
48AQI
48AQI
8th April 2025
48AQI
48AQI
9th April 2025
46AQI
46AQI
10th April 2025
54AQI
54AQI
11th April 2025
52AQI
52AQI
12th April 2025
51AQI
51AQI
13th April 2025
31AQI
31AQI
14th April 2025
48AQI
48AQI
15th April 2025
25AQI
25AQI
16th April 2025
48AQI
48AQI
17th April 2025
49AQI
49AQI
18th April 2025
61AQI
61AQI
19th April 2025
61AQI
61AQI
20th April 2025
52AQI
52AQI
21st April 2025
44AQI
44AQI
22nd April 2025
50AQI
50AQI
23rd April 2025
25AQI
25AQI
24th April 2025
26AQI
26AQI
25th April 2025
63AQI
63AQI
26th April 2025
53AQI
53AQI
27th April 2025
62AQI
62AQI
28th April 2025
47AQI
47AQI
29th April 2025
57AQI
57AQI
30th April 2025
65AQI
65AQI
1st May 2025
56AQI
56AQI
2nd May 2025
38AQI
38AQI
3rd May 2025
47AQI
47AQI
4th May 2025
39AQI
39AQI
5th May 2025
45AQI
45AQI
6th May 2025
26AQI
26AQI
7th May 2025
29AQI
29AQI
8th May 2025
31AQI
31AQI
9th May 2025
33AQI
33AQI
10th May 2025
28AQI
28AQI
11th May 2025
33AQI
33AQI
12th May 2025
46AQI
46AQI
13th May 2025
53AQI
53AQI
14th May 2025
60AQI
60AQI
15th May 2025
55AQI
55AQI
16th May 2025
56AQI
56AQI
17th May 2025
41AQI
41AQI
18th May 2025
51AQI
51AQI
19th May 2025
52AQI
52AQI
20th May 2025
67AQI
67AQI
21st May 2025
50AQI
50AQI
22nd May 2025
35AQI
35AQI
23rd May 2025
53AQI
53AQI
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
45AQI
45AQI
7th June 2025
52AQI
52AQI
8th June 2025
64AQI
64AQI
9th June 2025
44AQI
44AQI
10th June 2025
29AQI
29AQI
11th June 2025
34AQI
34AQI
12th June 2025
41AQI
41AQI
13th June 2025
47AQI
47AQI
14th June 2025
31AQI
31AQI
15th June 2025
26AQI
26AQI
16th June 2025
40AQI
40AQI
17th June 2025
38AQI
38AQI
18th June 2025
49AQI
49AQI
19th June 2025
53AQI
53AQI
20th June 2025
58AQI
58AQI
21st June 2025
54AQI
54AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
43AQI
43AQI
24th June 2025
36AQI
36AQI
25th June 2025
36AQI
36AQI
26th June 2025
34AQI
34AQI
27th June 2025
50AQI
50AQI
28th June 2025
42AQI
42AQI
29th June 2025
48AQI
48AQI
30th June 2025
56AQI
56AQI
1st July 2025
64AQI
64AQI
2nd July 2025
94AQI
94AQI
3rd July 2025
80AQI
80AQI
4th July 2025
90AQI
90AQI
5th July 2025
93AQI
93AQI
6th July 2025
80AQI
80AQI
7th July 2025
68AQI
68AQI
8th July 2025
77AQI
77AQI
9th July 2025
85AQI
85AQI
10th July 2025
65AQI
65AQI
11th July 2025
54AQI
54AQI
12th July 2025
55AQI
55AQI
13th July 2025
52AQI
52AQI
14th July 2025
41AQI
41AQI
15th July 2025
48AQI
48AQI
16th July 2025
48AQI
48AQI
17th July 2025
35AQI
35AQI
18th July 2025
37AQI
37AQI
19th July 2025
34AQI
34AQI
20th July 2025
32AQI
32AQI
21st July 2025
32AQI
32AQI
22nd July 2025
35AQI
35AQI
23rd July 2025
41AQI
41AQI
24th July 2025
40AQI
40AQI
25th July 2025
34AQI
34AQI
26th July 2025
27AQI
27AQI
27th July 2025
27AQI
27AQI
28th July 2025
28AQI
28AQI
29th July 2025
39AQI
39AQI
30th July 2025
43AQI
43AQI
31st July 2025
41AQI
41AQI
1st August 2025
46AQI
46AQI
2nd August 2025
45AQI
45AQI
3rd August 2025
49AQI
49AQI
4th August 2025
62AQI
62AQI
5th August 2025
53AQI
53AQI
6th August 2025
52AQI
52AQI
7th August 2025
47AQI
47AQI
8th August 2025
41AQI
41AQI
9th August 2025
44AQI
44AQI
10th August 2025
44AQI
44AQI
11th August 2025
35AQI
35AQI
12th August 2025
35AQI
35AQI
13th August 2025
38AQI
38AQI
14th August 2025
43AQI
43AQI
15th August 2025
45AQI
45AQI
16th August 2025
45AQI
45AQI
17th August 2025
43AQI
43AQI
18th August 2025
46AQI
46AQI
19th August 2025
47AQI
47AQI
20th August 2025
47AQI
47AQI
21st August 2025
48AQI
48AQI
22nd August 2025
45AQI
45AQI
23rd August 2025
50AQI
50AQI
24th August 2025
56AQI
56AQI
25th August 2025
57AQI
57AQI
26th August 2025
57AQI
57AQI
27th August 2025
54AQI
54AQI
28th August 2025
53AQI
53AQI
29th August 2025
56AQI
56AQI
30th August 2025
56AQI
56AQI
31st August 2025
55AQI
55AQI
1st September 2025
42AQI
42AQI
2nd September 2025
35AQI
35AQI
3rd September 2025
38AQI
38AQI
4th September 2025
26AQI
26AQI
5th September 2025
26AQI
26AQI
6th September 2025
28AQI
28AQI
7th September 2025
34AQI
34AQI
8th September 2025
38AQI
38AQI
9th September 2025
38AQI
38AQI
10th September 2025
35AQI
35AQI
11th September 2025
30AQI
30AQI
12th September 2025
31AQI
31AQI
13th September 2025
28AQI
28AQI
14th September 2025
40AQI
40AQI
15th September 2025
36AQI
36AQI
16th September 2025
43AQI
43AQI
17th September 2025
50AQI
50AQI
18th September 2025
35AQI
35AQI
19th September 2025
33AQI
33AQI
20th September 2025
32AQI
32AQI
21st September 2025
27AQI
27AQI
22nd September 2025
29AQI
29AQI
23rd September 2025
31AQI
31AQI
24th September 2025
31AQI
31AQI
25th September 2025
30AQI
30AQI
26th September 2025
32AQI
32AQI
27th September 2025
26AQI
26AQI
28th September 2025
26AQI
26AQI
29th September 2025
26AQI
26AQI
30th September 2025
18AQI
18AQI
1st October 2025
28AQI
28AQI
2nd October 2025
42AQI
42AQI
3rd October 2025
45AQI
45AQI
4th October 2025
48AQI
48AQI
5th October 2025
45AQI
45AQI
6th October 2025
50AQI
50AQI
7th October 2025
44AQI
44AQI
8th October 2025
55AQI
55AQI
9th October 2025
51AQI
51AQI
10th October 2025
54AQI
54AQI
11th October 2025
48AQI
48AQI
12th October 2025
42AQI
42AQI
13th October 2025
46AQI
46AQI
14th October 2025
52AQI
52AQI
15th October 2025
41AQI
41AQI
16th October 2025
36AQI
36AQI
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
39AQI
39AQI
48AQI
45AQI
41AQI
43AQI
52AQI
48AQI
32AQI
45AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202543AQI
27
4
24
4
22
9
19
11
22
9
23
7
18
13
20
11
30
12
4
217
72
Highest AQI recorded in
July52AQI
Lowest AQI recorded in
September32AQI
202437AQI
27
3
1
27
2
23
8
20
9
1
28
3
27
3
27
4
29
2
28
2
30
1
27
3
31
324
40
2
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
October30AQI
202340AQI
25
6
24
4
20
11
16
14
27
4
22
8
26
5
31
28
2
30
1
23
6
24
7
296
68
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
August28AQI
202239AQI
30
1
17
4
19
12
13
4
18
13
23
7
19
3
1
28
1
31
24
6
30
1
253
52
Highest AQI recorded in
March48AQI
Lowest AQI recorded in
August26AQI
202136AQI
25
6
20
8
26
5
19
2
27
4
25
5
29
2
29
2
28
2
31
25
5
26
5
310
46
Highest AQI recorded in
June42AQI
Lowest AQI recorded in
August29AQI
202034AQI
11
2
18
3
17
1
24
6
28
3
15
16
18
1
31
26
4
28
3
216
39
Highest AQI recorded in
August51AQI
Lowest AQI recorded in
July26AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
43AQILeast Polluted Year Recorded
2020(Avg.)
34AQIKusatsucho's annual 2025 AQI (43) shows an average percentage change of 16.9% (worsened AQI) compared to previous years: 2020 (34), 2021 (36), 2022 (39), 2023 (40), 2024 (37).
