Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Ritto, 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

Ritto, Shiga, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2025
61AQI
Lowest AQI recorded on
13th Aug 2021
8AQI

Same Day Analysis (20th 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 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 20th Aug - 21st Aug 2025

Ritto, Shiga, Japan

AQI
Day
Night
.

5 AM20th Aug 2025

6 PM

4 AM21st Aug 2025

Day time
Avg. Highest Time
3PM20th Aug

56AQI

Avg. Lowest Time
8AM20th Aug

44AQI

Night time
Avg. Highest Time
7PM20th Aug

50AQI

Avg. Lowest Time
3AM21st Aug

42AQI

In the last 24 hours,

Ritto's AQI reached its highest point of 56 at 3 PM during the Day, while the lowest point, 42, was recorded at 3 AM during the Night between 20th Aug and 21st Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Ritto, Shiga, Japan

JulAug
22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st
Day
Night
22nd Jul 2025345 AMAQI
22nd Jul 2025346 AMAQI
22nd Jul 2025347 AMAQI
22nd Jul 2025348 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252310 AMAQI
22nd Jul 20253011 AMAQI
22nd Jul 20253412 PMAQI
22nd Jul 2025421 PMAQI
22nd Jul 2025462 PMAQI
22nd Jul 2025473 PMAQI
22nd Jul 2025404 PMAQI
22nd Jul 2025345 PMAQI
22nd Jul 2025446 PMAQI
22nd Jul 2025437 PMAQI
22nd Jul 2025328 PMAQI
22nd Jul 2025339 PMAQI
22nd Jul 20253110 PMAQI
22nd Jul 20253111 PMAQI
23rd Jul 20253012 AMAQI
23rd Jul 2025321 AMAQI
23rd Jul 2025362 AMAQI
23rd Jul 2025353 AMAQI
23rd Jul 2025354 AMAQI

29°C24/34°C

23rd Jul 2025345 AMAQI
23rd Jul 2025346 AMAQI
23rd Jul 2025347 AMAQI
23rd Jul 2025358 AMAQI
23rd Jul 2025259 AMAQI
23rd Jul 20252810 AMAQI
23rd Jul 20253411 AMAQI
23rd Jul 20253312 PMAQI
23rd Jul 2025471 PMAQI
23rd Jul 2025512 PMAQI
23rd Jul 2025563 PMAQI
23rd Jul 2025574 PMAQI
23rd Jul 2025545 PMAQI
23rd Jul 2025536 PMAQI
23rd Jul 2025527 PMAQI
23rd Jul 2025438 PMAQI
23rd Jul 2025349 PMAQI
23rd Jul 20253210 PMAQI
23rd Jul 20253211 PMAQI
24th Jul 20253212 AMAQI
24th Jul 2025331 AMAQI
24th Jul 2025352 AMAQI
24th Jul 2025343 AMAQI
24th Jul 2025364 AMAQI

29°C24/35°C

24th Jul 2025355 AMAQI
24th Jul 2025366 AMAQI
24th Jul 2025357 AMAQI
24th Jul 2025368 AMAQI
24th Jul 2025269 AMAQI
24th Jul 20252610 AMAQI
24th Jul 20253411 AMAQI
24th Jul 20254812 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025562 PMAQI
24th Jul 2025573 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025545 PMAQI
24th Jul 2025526 PMAQI
24th Jul 2025477 PMAQI
24th Jul 2025378 PMAQI
24th Jul 2025329 PMAQI
24th Jul 20253210 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20253012 AMAQI
25th Jul 2025311 AMAQI
25th Jul 2025352 AMAQI
25th Jul 2025353 AMAQI
25th Jul 2025364 AMAQI

29°C24/35°C

25th Jul 2025365 AMAQI
25th Jul 2025376 AMAQI
25th Jul 2025367 AMAQI
25th Jul 2025368 AMAQI
25th Jul 2025309 AMAQI
25th Jul 20252810 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20253312 PMAQI
25th Jul 2025351 PMAQI
25th Jul 2025322 PMAQI
25th Jul 2025323 PMAQI
25th Jul 2025294 PMAQI
25th Jul 2025205 PMAQI
25th Jul 2025176 PMAQI
25th Jul 2025167 PMAQI
25th Jul 2025208 PMAQI
25th Jul 2025269 PMAQI
25th Jul 20252410 PMAQI
25th Jul 20252411 PMAQI
26th Jul 20252412 AMAQI
26th Jul 2025291 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025343 AMAQI
26th Jul 2025344 AMAQI

28°C24/34°C

26th Jul 2025345 AMAQI
26th Jul 2025346 AMAQI
26th Jul 2025337 AMAQI
26th Jul 2025348 AMAQI
26th Jul 2025229 AMAQI
26th Jul 20251510 AMAQI
26th Jul 20251611 AMAQI
26th Jul 20252212 PMAQI
26th Jul 2025211 PMAQI
26th Jul 2025212 PMAQI
26th Jul 2025193 PMAQI
26th Jul 2025204 PMAQI
26th Jul 2025175 PMAQI
26th Jul 2025176 PMAQI
26th Jul 2025177 PMAQI
26th Jul 2025218 PMAQI
26th Jul 2025259 PMAQI
26th Jul 20252410 PMAQI
26th Jul 20252411 PMAQI
27th Jul 20252512 AMAQI
27th Jul 2025281 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025323 AMAQI
27th Jul 2025314 AMAQI

28°C24/34°C

27th Jul 2025305 AMAQI
27th Jul 2025306 AMAQI
27th Jul 2025307 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025249 AMAQI
27th Jul 20251610 AMAQI
27th Jul 20251911 AMAQI
27th Jul 20252012 PMAQI
27th Jul 2025221 PMAQI
27th Jul 2025192 PMAQI
27th Jul 2025203 PMAQI
27th Jul 2025214 PMAQI
27th Jul 2025205 PMAQI
27th Jul 2025186 PMAQI
27th Jul 2025197 PMAQI
27th Jul 2025238 PMAQI
27th Jul 2025249 PMAQI
27th Jul 20252410 PMAQI
27th Jul 20252411 PMAQI
28th Jul 20252412 AMAQI
28th Jul 2025261 AMAQI
28th Jul 2025302 AMAQI
28th Jul 2025303 AMAQI
28th Jul 2025294 AMAQI

28°C23/35°C

28th Jul 2025285 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025199 AMAQI
28th Jul 20252010 AMAQI
28th Jul 20252611 AMAQI
28th Jul 20253012 PMAQI
28th Jul 2025301 PMAQI
28th Jul 2025272 PMAQI
28th Jul 2025293 PMAQI
28th Jul 2025324 PMAQI
28th Jul 2025305 PMAQI
28th Jul 2025316 PMAQI
28th Jul 2025307 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20252810 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252712 AMAQI
29th Jul 2025291 AMAQI
29th Jul 2025282 AMAQI
29th Jul 2025283 AMAQI
29th Jul 2025284 AMAQI

29°C24/35°C

29th Jul 2025275 AMAQI
29th Jul 2025276 AMAQI
29th Jul 2025277 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025279 AMAQI
29th Jul 20253510 AMAQI
29th Jul 20254311 AMAQI
29th Jul 20254912 PMAQI
29th Jul 2025541 PMAQI
29th Jul 2025542 PMAQI
29th Jul 2025553 PMAQI
29th Jul 2025554 PMAQI
29th Jul 2025535 PMAQI
29th Jul 2025516 PMAQI
29th Jul 2025457 PMAQI
29th Jul 2025428 PMAQI
29th Jul 2025399 PMAQI
29th Jul 20253310 PMAQI
29th Jul 20253511 PMAQI
30th Jul 20253212 AMAQI
30th Jul 2025301 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025283 AMAQI
30th Jul 2025304 AMAQI

30°C25/36°C

30th Jul 2025325 AMAQI
30th Jul 2025326 AMAQI
30th Jul 2025327 AMAQI
30th Jul 2025328 AMAQI
30th Jul 2025339 AMAQI
30th Jul 20254010 AMAQI
30th Jul 20254411 AMAQI
30th Jul 20255212 PMAQI
30th Jul 2025561 PMAQI
30th Jul 2025572 PMAQI
30th Jul 2025583 PMAQI
30th Jul 2025594 PMAQI
30th Jul 2025605 PMAQI
30th Jul 2025566 PMAQI
30th Jul 2025547 PMAQI
30th Jul 2025468 PMAQI
30th Jul 2025389 PMAQI
30th Jul 20253410 PMAQI
30th Jul 20253411 PMAQI
31st Jul 20253612 AMAQI
31st Jul 2025321 AMAQI
31st Jul 2025312 AMAQI
31st Jul 2025313 AMAQI
31st Jul 2025304 AMAQI

30°C25/36°C

31st Jul 2025295 AMAQI
31st Jul 2025296 AMAQI
31st Jul 2025297 AMAQI
31st Jul 2025298 AMAQI
31st Jul 2025299 AMAQI
31st Jul 20252910 AMAQI
31st Jul 20254111 AMAQI
31st Jul 20255412 PMAQI
31st Jul 2025571 PMAQI
31st Jul 2025562 PMAQI
31st Jul 2025573 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025595 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025587 PMAQI
31st Jul 2025498 PMAQI
31st Jul 2025439 PMAQI
31st Jul 20253710 PMAQI
31st Jul 20253911 PMAQI
1st Aug 20253712 AMAQI
1st Aug 2025361 AMAQI
1st Aug 2025322 AMAQI
1st Aug 2025283 AMAQI
1st Aug 2025344 AMAQI

30°C25/36°C

1st Aug 2025345 AMAQI
1st Aug 2025346 AMAQI
1st Aug 2025347 AMAQI
1st Aug 2025358 AMAQI
1st Aug 2025469 AMAQI
1st Aug 20254610 AMAQI
1st Aug 20255011 AMAQI
1st Aug 20255512 PMAQI
1st Aug 2025531 PMAQI
1st Aug 2025572 PMAQI
1st Aug 2025563 PMAQI
1st Aug 2025594 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025606 PMAQI
1st Aug 2025577 PMAQI
1st Aug 2025548 PMAQI
1st Aug 2025529 PMAQI
1st Aug 20254610 PMAQI
1st Aug 20254211 PMAQI
2nd Aug 20254612 AMAQI
2nd Aug 2025351 AMAQI
2nd Aug 2025352 AMAQI
2nd Aug 2025353 AMAQI
2nd Aug 2025384 AMAQI

29°C25/34°C

2nd Aug 2025385 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025408 AMAQI
2nd Aug 2025489 AMAQI
2nd Aug 20254410 AMAQI
2nd Aug 20255211 AMAQI
2nd Aug 20255012 PMAQI
2nd Aug 2025471 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025553 PMAQI
2nd Aug 2025504 PMAQI
2nd Aug 2025495 PMAQI
2nd Aug 2025506 PMAQI
2nd Aug 2025467 PMAQI
2nd Aug 2025498 PMAQI
2nd Aug 2025439 PMAQI
2nd Aug 20254010 PMAQI
2nd Aug 20254411 PMAQI
3rd Aug 20254212 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025392 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025424 AMAQI

29°C25/34°C

3rd Aug 2025435 AMAQI
3rd Aug 2025416 AMAQI
3rd Aug 2025417 AMAQI
3rd Aug 2025428 AMAQI
3rd Aug 2025429 AMAQI
3rd Aug 20254810 AMAQI
3rd Aug 20254911 AMAQI
3rd Aug 20255512 PMAQI
3rd Aug 2025581 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025483 PMAQI
3rd Aug 2025584 PMAQI
3rd Aug 2025535 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025548 PMAQI
3rd Aug 2025529 PMAQI
3rd Aug 20255210 PMAQI
3rd Aug 20254911 PMAQI
4th Aug 20254312 AMAQI
4th Aug 2025401 AMAQI
4th Aug 2025412 AMAQI
4th Aug 2025423 AMAQI
4th Aug 2025444 AMAQI

30°C25/37°C

4th Aug 2025445 AMAQI
4th Aug 2025446 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025629 AMAQI
4th Aug 20257510 AMAQI
4th Aug 20258611 AMAQI
4th Aug 20258412 PMAQI
4th Aug 2025841 PMAQI
4th Aug 2025912 PMAQI
4th Aug 2025833 PMAQI
4th Aug 2025784 PMAQI
4th Aug 2025845 PMAQI
4th Aug 2025786 PMAQI
4th Aug 2025707 PMAQI
4th Aug 2025648 PMAQI
4th Aug 2025569 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20255611 PMAQI
5th Aug 20255712 AMAQI
5th Aug 2025501 AMAQI
5th Aug 2025432 AMAQI
5th Aug 2025433 AMAQI
5th Aug 2025524 AMAQI

30°C26/36°C

5th Aug 2025565 AMAQI
5th Aug 2025546 AMAQI
5th Aug 2025547 AMAQI
5th Aug 2025558 AMAQI
5th Aug 2025549 AMAQI
5th Aug 20255610 AMAQI
5th Aug 20255411 AMAQI
5th Aug 20255312 PMAQI
5th Aug 2025541 PMAQI
5th Aug 2025532 PMAQI
5th Aug 2025513 PMAQI
5th Aug 2025544 PMAQI
5th Aug 2025545 PMAQI
5th Aug 2025476 PMAQI
5th Aug 2025497 PMAQI
5th Aug 2025528 PMAQI
5th Aug 2025529 PMAQI
5th Aug 20255010 PMAQI
5th Aug 20254811 PMAQI
6th Aug 20254812 AMAQI
6th Aug 2025511 AMAQI
6th Aug 2025512 AMAQI
6th Aug 2025513 AMAQI
6th Aug 2025524 AMAQI

29°C24/35°C

6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025449 AMAQI
6th Aug 20254010 AMAQI
6th Aug 20255011 AMAQI
6th Aug 20255012 PMAQI
6th Aug 2025501 PMAQI
6th Aug 2025482 PMAQI
6th Aug 2025523 PMAQI
6th Aug 2025524 PMAQI
6th Aug 2025555 PMAQI
6th Aug 2025536 PMAQI
6th Aug 2025567 PMAQI
6th Aug 2025568 PMAQI
6th Aug 2025579 PMAQI
6th Aug 20255710 PMAQI
6th Aug 20255611 PMAQI
7th Aug 20255412 AMAQI
7th Aug 2025521 AMAQI
7th Aug 2025502 AMAQI
7th Aug 2025483 AMAQI
7th Aug 2025494 AMAQI

30°C26/35°C

7th Aug 2025505 AMAQI
7th Aug 2025486 AMAQI
7th Aug 2025487 AMAQI
7th Aug 2025498 AMAQI
7th Aug 2025429 AMAQI
7th Aug 20254210 AMAQI
7th Aug 20255011 AMAQI
7th Aug 20254412 PMAQI
7th Aug 2025341 PMAQI
7th Aug 2025342 PMAQI
7th Aug 2025343 PMAQI
7th Aug 2025344 PMAQI
7th Aug 2025325 PMAQI
7th Aug 2025396 PMAQI
7th Aug 2025387 PMAQI
7th Aug 2025408 PMAQI
7th Aug 2025449 PMAQI
7th Aug 20254310 PMAQI
7th Aug 20253811 PMAQI
8th Aug 20254012 AMAQI
8th Aug 2025441 AMAQI
8th Aug 2025512 AMAQI
8th Aug 2025513 AMAQI
8th Aug 2025504 AMAQI

26°C23/30°C

8th Aug 2025495 AMAQI
8th Aug 2025496 AMAQI
8th Aug 2025497 AMAQI
8th Aug 2025498 AMAQI
8th Aug 2025299 AMAQI
8th Aug 20252510 AMAQI
8th Aug 20252911 AMAQI
8th Aug 20253012 PMAQI
8th Aug 2025321 PMAQI
8th Aug 2025342 PMAQI
8th Aug 2025303 PMAQI
8th Aug 2025284 PMAQI
8th Aug 2025305 PMAQI
8th Aug 2025306 PMAQI
8th Aug 2025287 PMAQI
8th Aug 2025338 PMAQI
8th Aug 2025409 PMAQI
8th Aug 20253710 PMAQI
8th Aug 20253711 PMAQI
9th Aug 20253812 AMAQI
9th Aug 2025441 AMAQI
9th Aug 2025492 AMAQI
9th Aug 2025483 AMAQI
9th Aug 2025484 AMAQI

26°C22/31°C

9th Aug 2025455 AMAQI
9th Aug 2025466 AMAQI
9th Aug 2025467 AMAQI
9th Aug 2025468 AMAQI
9th Aug 2025259 AMAQI
9th Aug 20252310 AMAQI
9th Aug 20252711 AMAQI
9th Aug 20252812 PMAQI
9th Aug 2025321 PMAQI
9th Aug 2025482 PMAQI
9th Aug 2025503 PMAQI
9th Aug 2025484 PMAQI
9th Aug 2025505 PMAQI
9th Aug 2025496 PMAQI
9th Aug 2025507 PMAQI
9th Aug 2025498 PMAQI
9th Aug 2025509 PMAQI
9th Aug 20255110 PMAQI
9th Aug 20254811 PMAQI
10th Aug 20254812 AMAQI
10th Aug 2025461 AMAQI
10th Aug 2025462 AMAQI
10th Aug 2025463 AMAQI
10th Aug 2025454 AMAQI

26°C22/30°C

10th Aug 2025435 AMAQI
10th Aug 2025446 AMAQI
10th Aug 2025447 AMAQI
10th Aug 2025448 AMAQI
10th Aug 2025409 AMAQI
10th Aug 20253310 AMAQI
10th Aug 20253611 AMAQI
10th Aug 20253612 PMAQI
10th Aug 2025301 PMAQI
10th Aug 2025272 PMAQI
10th Aug 2025283 PMAQI
10th Aug 2025274 PMAQI
10th Aug 2025315 PMAQI
10th Aug 2025366 PMAQI
10th Aug 2025407 PMAQI
10th Aug 2025488 PMAQI
10th Aug 2025489 PMAQI
10th Aug 20254610 PMAQI
10th Aug 20254411 PMAQI
11th Aug 20254212 AMAQI
11th Aug 2025421 AMAQI
11th Aug 2025462 AMAQI
11th Aug 2025463 AMAQI
11th Aug 2025454 AMAQI

24°C22/25°C

11th Aug 2025435 AMAQI
11th Aug 2025446 AMAQI
11th Aug 2025447 AMAQI
11th Aug 2025428 AMAQI
11th Aug 2025209 AMAQI
11th Aug 20251410 AMAQI
11th Aug 20251511 AMAQI
11th Aug 20251612 PMAQI
11th Aug 2025181 PMAQI
11th Aug 2025202 PMAQI
11th Aug 2025263 PMAQI
11th Aug 2025294 PMAQI
11th Aug 2025295 PMAQI
11th Aug 2025366 PMAQI
11th Aug 2025327 PMAQI
11th Aug 2025328 PMAQI
11th Aug 2025369 PMAQI
11th Aug 20253610 PMAQI
11th Aug 20253611 PMAQI
12th Aug 20253712 AMAQI
12th Aug 2025431 AMAQI
12th Aug 2025442 AMAQI
12th Aug 2025423 AMAQI
12th Aug 2025404 AMAQI

26°C24/29°C

12th Aug 2025385 AMAQI
12th Aug 2025386 AMAQI
12th Aug 2025387 AMAQI
12th Aug 2025408 AMAQI
12th Aug 2025269 AMAQI
12th Aug 20252410 AMAQI
12th Aug 20253411 AMAQI
12th Aug 20252712 PMAQI
12th Aug 2025301 PMAQI
12th Aug 2025302 PMAQI
12th Aug 2025273 PMAQI
12th Aug 2025344 PMAQI
12th Aug 2025335 PMAQI
12th Aug 2025366 PMAQI
12th Aug 2025327 PMAQI
12th Aug 2025358 PMAQI
12th Aug 2025379 PMAQI
12th Aug 20253610 PMAQI
12th Aug 20253111 PMAQI
13th Aug 20253412 AMAQI
13th Aug 2025381 AMAQI
13th Aug 2025392 AMAQI
13th Aug 2025393 AMAQI
13th Aug 2025384 AMAQI

24°C23/25°C

13th Aug 2025375 AMAQI
13th Aug 2025386 AMAQI
13th Aug 2025367 AMAQI
13th Aug 2025368 AMAQI
13th Aug 2025309 AMAQI
13th Aug 20252310 AMAQI
13th Aug 20253811 AMAQI
13th Aug 20253912 PMAQI
13th Aug 2025391 PMAQI
13th Aug 2025352 PMAQI
13th Aug 2025473 PMAQI
13th Aug 2025504 PMAQI
13th Aug 2025525 PMAQI
13th Aug 2025446 PMAQI
13th Aug 2025447 PMAQI
13th Aug 2025348 PMAQI
13th Aug 2025379 PMAQI
13th Aug 20253510 PMAQI
13th Aug 20253611 PMAQI
14th Aug 20253612 AMAQI
14th Aug 2025371 AMAQI
14th Aug 2025372 AMAQI
14th Aug 2025383 AMAQI
14th Aug 2025384 AMAQI

26°C24/29°C

14th Aug 2025375 AMAQI
14th Aug 2025376 AMAQI
14th Aug 2025387 AMAQI
14th Aug 2025378 AMAQI
14th Aug 2025469 AMAQI
14th Aug 20254610 AMAQI
14th Aug 20254611 AMAQI
14th Aug 20255312 PMAQI
14th Aug 2025541 PMAQI
14th Aug 2025532 PMAQI
14th Aug 2025533 PMAQI
14th Aug 2025574 PMAQI
14th Aug 2025505 PMAQI
14th Aug 2025556 PMAQI
14th Aug 2025567 PMAQI
14th Aug 2025488 PMAQI
14th Aug 2025419 PMAQI
14th Aug 20254610 PMAQI
14th Aug 20254211 PMAQI
15th Aug 20254112 AMAQI
15th Aug 2025391 AMAQI
15th Aug 2025372 AMAQI
15th Aug 2025383 AMAQI
15th Aug 2025394 AMAQI

27°C24/32°C

15th Aug 2025415 AMAQI
15th Aug 2025386 AMAQI
15th Aug 2025417 AMAQI
15th Aug 2025428 AMAQI
15th Aug 2025469 AMAQI
15th Aug 20255010 AMAQI
15th Aug 20255011 AMAQI
15th Aug 20256012 PMAQI
15th Aug 2025551 PMAQI
15th Aug 2025562 PMAQI
15th Aug 2025483 PMAQI
15th Aug 2025564 PMAQI
15th Aug 2025585 PMAQI
15th Aug 2025576 PMAQI
15th Aug 2025587 PMAQI
15th Aug 2025528 PMAQI
15th Aug 2025519 PMAQI
15th Aug 20254810 PMAQI
15th Aug 20254911 PMAQI
16th Aug 20254412 AMAQI
16th Aug 2025421 AMAQI
16th Aug 2025402 AMAQI
16th Aug 2025393 AMAQI
16th Aug 2025424 AMAQI

27°C23/32°C

16th Aug 2025435 AMAQI
16th Aug 2025436 AMAQI
16th Aug 2025427 AMAQI
16th Aug 2025418 AMAQI
16th Aug 2025489 AMAQI
16th Aug 20255110 AMAQI
16th Aug 20255311 AMAQI
16th Aug 20255612 PMAQI
16th Aug 2025601 PMAQI
16th Aug 2025532 PMAQI
16th Aug 2025583 PMAQI
16th Aug 2025574 PMAQI
16th Aug 2025525 PMAQI
16th Aug 2025556 PMAQI
16th Aug 2025467 PMAQI
16th Aug 2025478 PMAQI
16th Aug 2025469 PMAQI
16th Aug 20254010 PMAQI
16th Aug 20254211 PMAQI
17th Aug 20254212 AMAQI
17th Aug 2025441 AMAQI
17th Aug 2025422 AMAQI
17th Aug 2025413 AMAQI
17th Aug 2025454 AMAQI

28°C24/33°C

17th Aug 2025465 AMAQI
17th Aug 2025456 AMAQI
17th Aug 2025467 AMAQI
17th Aug 2025458 AMAQI
17th Aug 2025379 AMAQI
17th Aug 20254210 AMAQI
17th Aug 20254611 AMAQI
17th Aug 20255212 PMAQI
17th Aug 2025521 PMAQI
17th Aug 2025492 PMAQI
17th Aug 2025473 PMAQI
17th Aug 2025444 PMAQI
17th Aug 2025475 PMAQI
17th Aug 2025486 PMAQI
17th Aug 2025467 PMAQI
17th Aug 2025438 PMAQI
17th Aug 2025429 PMAQI
17th Aug 20254110 PMAQI
17th Aug 20254111 PMAQI
18th Aug 20254012 AMAQI
18th Aug 2025431 AMAQI
18th Aug 2025432 AMAQI
18th Aug 2025423 AMAQI
18th Aug 2025424 AMAQI

28°C24/33°C

18th Aug 2025425 AMAQI
18th Aug 2025446 AMAQI
18th Aug 2025447 AMAQI
18th Aug 2025438 AMAQI
18th Aug 2025409 AMAQI
18th Aug 20254310 AMAQI
18th Aug 20254711 AMAQI
18th Aug 20255212 PMAQI
18th Aug 2025501 PMAQI
18th Aug 2025512 PMAQI
18th Aug 2025483 PMAQI
18th Aug 2025544 PMAQI
18th Aug 2025585 PMAQI
18th Aug 2025566 PMAQI
18th Aug 2025507 PMAQI
18th Aug 2025488 PMAQI
18th Aug 2025449 PMAQI
18th Aug 20254210 PMAQI
18th Aug 20254311 PMAQI
19th Aug 20254412 AMAQI
19th Aug 2025431 AMAQI
19th Aug 2025432 AMAQI
19th Aug 2025423 AMAQI
19th Aug 2025434 AMAQI

28°C24/34°C

19th Aug 2025425 AMAQI
19th Aug 2025436 AMAQI
19th Aug 2025427 AMAQI
19th Aug 2025428 AMAQI
19th Aug 2025529 AMAQI
19th Aug 20255110 AMAQI
19th Aug 20255011 AMAQI
19th Aug 20255012 PMAQI
19th Aug 2025521 PMAQI
19th Aug 2025522 PMAQI
19th Aug 2025493 PMAQI
19th Aug 2025474 PMAQI
19th Aug 2025475 PMAQI
19th Aug 2025506 PMAQI
19th Aug 2025507 PMAQI
19th Aug 2025548 PMAQI
19th Aug 2025479 PMAQI
19th Aug 20254310 PMAQI
19th Aug 20254011 PMAQI
20th Aug 20253612 AMAQI
20th Aug 2025401 AMAQI
20th Aug 2025412 AMAQI
20th Aug 2025423 AMAQI
20th Aug 2025454 AMAQI

28°C24/33°C

20th Aug 2025445 AMAQI
20th Aug 2025456 AMAQI
20th Aug 2025457 AMAQI
20th Aug 2025448 AMAQI
20th Aug 2025509 AMAQI
20th Aug 20254610 AMAQI
20th Aug 20254711 AMAQI
20th Aug 20254712 PMAQI
20th Aug 2025521 PMAQI
20th Aug 2025502 PMAQI
20th Aug 2025563 PMAQI
20th Aug 2025564 PMAQI
20th Aug 2025545 PMAQI
20th Aug 2025536 PMAQI
20th Aug 2025507 PMAQI
20th Aug 2025468 PMAQI
20th Aug 2025469 PMAQI
20th Aug 20254310 PMAQI
20th Aug 20254611 PMAQI
21st Aug 20254512 AMAQI
21st Aug 2025471 AMAQI
21st Aug 2025432 AMAQI
21st Aug 2025423 AMAQI
21st Aug 2025444 AMAQI

29°C24/34°C

21st Aug 2025455 AMAQI
5 AM
21st Aug 2025466 AMAQI
21st Aug 2025457 AMAQI
21st Aug 2025468 AMAQI
21st Aug 2025469 AMAQI
21st Aug 20254910 AMAQI
21st Aug 20254911 AMAQI
11 AM
21st Aug 20254812 PMAQI
21st Aug 2025461 PMAQI
21st Aug 2025532 PMAQI
21st Aug 2025513 PMAQI
21st Aug 2025514 PMAQI
6 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
12 PM - 6 PM

46AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
9 AM - 10 AM

37AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 6 PM (Avg. 46), while the lowest AQI was between 9 AM to 10 AM (Avg. 37).
Night time
Avg. Highest Time
7 PM - 11 PM

42AQI

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

39AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 42), while the lowest AQI was between 12 AM to 4 AM (Avg. 39).

2025 Days Vs Air Quality

Ritto, Shiga, Japan

2025

78%

182

22%

50

Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)

Good
182 Days
Moderate
50 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 78%

Health Risk Level:

Low

In 2025, 78% of 233 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

Ritto, 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
29AQI
2nd January 2025
30AQI
3rd January 2025
29AQI
4th January 2025
28AQI
5th January 2025
28AQI
6th January 2025
32AQI
7th January 2025
33AQI
8th January 2025
28AQI
9th January 2025
28AQI
10th January 2025
25AQI
11th January 2025
24AQI
12th January 2025
34AQI
13th January 2025
26AQI
14th January 2025
44AQI
15th January 2025
37AQI
16th January 2025
34AQI
17th January 2025
30AQI
18th January 2025
28AQI
19th January 2025
33AQI
20th January 2025
38AQI
21st January 2025
35AQI
22nd January 2025
40AQI
23rd January 2025
60AQI
24th January 2025
52AQI
25th January 2025
42AQI
26th January 2025
36AQI
27th January 2025
29AQI
28th January 2025
31AQI
29th January 2025
30AQI
30th January 2025
35AQI
31st January 2025
69AQI
1st February 2025
66AQI
2nd February 2025
46AQI
3rd February 2025
47AQI
4th February 2025
39AQI
5th February 2025
39AQI
6th February 2025
32AQI
7th February 2025
35AQI
8th February 2025
31AQI
9th February 2025
30AQI
10th February 2025
30AQI
11th February 2025
30AQI
12th February 2025
33AQI
13th February 2025
31AQI
14th February 2025
32AQI
15th February 2025
30AQI
16th February 2025
36AQI
17th February 2025
37AQI
18th February 2025
31AQI
19th February 2025
31AQI
20th February 2025
29AQI
21st February 2025
30AQI
22nd February 2025
30AQI
23rd February 2025
30AQI
24th February 2025
32AQI
25th February 2025
33AQI
26th February 2025
41AQI
27th February 2025
49AQI
28th February 2025
57AQI
1st March 2025
59AQI
2nd March 2025
69AQI
3rd March 2025
44AQI
4th March 2025
40AQI
5th March 2025
31AQI
6th March 2025
36AQI
7th March 2025
33AQI
8th March 2025
35AQI
9th March 2025
35AQI
10th March 2025
35AQI
11th March 2025
33AQI
12th March 2025
32AQI
13th March 2025
45AQI
14th March 2025
37AQI
15th March 2025
36AQI
16th March 2025
22AQI
17th March 2025
24AQI
18th March 2025
23AQI
19th March 2025
22AQI
20th March 2025
35AQI
21st March 2025
51AQI
22nd March 2025
54AQI
23rd March 2025
70AQI
24th March 2025
69AQI
25th March 2025
79AQI
26th March 2025
79AQI
27th March 2025
84AQI
28th March 2025
45AQI
29th March 2025
46AQI
30th March 2025
34AQI
31st March 2025
35AQI
1st April 2025
31AQI
2nd April 2025
28AQI
3rd April 2025
22AQI
4th April 2025
24AQI
5th April 2025
32AQI
6th April 2025
34AQI
7th April 2025
43AQI
8th April 2025
43AQI
9th April 2025
42AQI
10th April 2025
53AQI
11th April 2025
49AQI
12th April 2025
50AQI
13th April 2025
31AQI
14th April 2025
46AQI
15th April 2025
24AQI
16th April 2025
44AQI
17th April 2025
47AQI
18th April 2025
56AQI
19th April 2025
60AQI
20th April 2025
53AQI
21st April 2025
40AQI
22nd April 2025
46AQI
23rd April 2025
23AQI
24th April 2025
25AQI
25th April 2025
60AQI
26th April 2025
51AQI
27th April 2025
59AQI
28th April 2025
44AQI
29th April 2025
53AQI
30th April 2025
60AQI
1st May 2025
54AQI
2nd May 2025
38AQI
3rd May 2025
44AQI
4th May 2025
37AQI
5th May 2025
42AQI
6th May 2025
25AQI
7th May 2025
28AQI
8th May 2025
29AQI
9th May 2025
27AQI
10th May 2025
27AQI
11th May 2025
29AQI
12th May 2025
42AQI
13th May 2025
50AQI
14th May 2025
57AQI
15th May 2025
55AQI
16th May 2025
54AQI
17th May 2025
36AQI
18th May 2025
48AQI
19th May 2025
50AQI
20th May 2025
66AQI
21st May 2025
60AQI
22nd May 2025
36AQI
23rd May 2025
52AQI
24th May 2025
37AQI
25th May 2025
27AQI
26th May 2025
28AQI
27th May 2025
28AQI
28th May 2025
27AQI
29th May 2025
36AQI
30th May 2025
33AQI
31st May 2025
30AQI
1st June 2025
35AQI
2nd June 2025
46AQI
3rd June 2025
25AQI
4th June 2025
40AQI
5th June 2025
37AQI
6th June 2025
47AQI
7th June 2025
51AQI
8th June 2025
63AQI
9th June 2025
42AQI
10th June 2025
29AQI
11th June 2025
32AQI
12th June 2025
40AQI
13th June 2025
46AQI
14th June 2025
30AQI
15th June 2025
26AQI
16th June 2025
39AQI
17th June 2025
36AQI
18th June 2025
48AQI
19th June 2025
53AQI
20th June 2025
56AQI
21st June 2025
50AQI
22nd June 2025
45AQI
23rd June 2025
38AQI
24th June 2025
32AQI
25th June 2025
32AQI
26th June 2025
32AQI
27th June 2025
47AQI
28th June 2025
38AQI
29th June 2025
48AQI
30th June 2025
56AQI
1st July 2025
64AQI
2nd July 2025
96AQI
3rd July 2025
81AQI
4th July 2025
89AQI
5th July 2025
92AQI
6th July 2025
77AQI
7th July 2025
65AQI
8th July 2025
79AQI
9th July 2025
85AQI
10th July 2025
62AQI
11th July 2025
51AQI
12th July 2025
52AQI
13th July 2025
50AQI
14th July 2025
38AQI
15th July 2025
46AQI
16th July 2025
46AQI
17th July 2025
33AQI
18th July 2025
33AQI
19th July 2025
31AQI
20th July 2025
29AQI
21st July 2025
33AQI
22nd July 2025
35AQI
23rd July 2025
39AQI
24th July 2025
39AQI
25th July 2025
29AQI
26th July 2025
25AQI
27th July 2025
24AQI
28th July 2025
28AQI
29th July 2025
38AQI
30th July 2025
41AQI
31st July 2025
41AQI
1st August 2025
46AQI
2nd August 2025
44AQI
3rd August 2025
48AQI
4th August 2025
61AQI
5th August 2025
52AQI
6th August 2025
52AQI
7th August 2025
43AQI
8th August 2025
38AQI
9th August 2025
44AQI
10th August 2025
41AQI
11th August 2025
34AQI
12th August 2025
35AQI
13th August 2025
38AQI
14th August 2025
45AQI
15th August 2025
48AQI
16th August 2025
47AQI
17th August 2025
45AQI
18th August 2025
46AQI
19th August 2025
46AQI
20th August 2025
45AQI

35AQI

36AQI

44AQI

42AQI

40AQI

41AQI

51AQI

45AQI

No. of days

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

202542AQI

28
3
26
2
22
9
21
9
24
7
25
5
19
12
17
3
182
50

Highest AQI recorded in

July

51AQI

Lowest AQI recorded in

January

35AQI

202433AQI

30
1
27
2
26
5
25
5
30
1
29
1
31
30
1
27
3
31
30
31
347
19

Highest AQI recorded in

April

43AQI

Lowest AQI recorded in

August

27AQI

202338AQI

26
5
25
3
23
8
18
12
27
4
25
5
25
6
31
29
1
30
1
25
4
25
6
309
54
1

Highest AQI recorded in

April

48AQI

Lowest AQI recorded in

August

29AQI

202236AQI

31
18
3
21
10
19
11
22
9
26
4
22
3
3
28
1
30
1
26
4
31
277
46

Highest AQI recorded in

March

47AQI

Lowest AQI recorded in

October

29AQI

202133AQI

26
5
23
5
27
4
20
2
29
2
26
4
29
2
30
1
29
1
31
26
4
28
3
324
33

Highest AQI recorded in

June

39AQI

Lowest AQI recorded in

August

27AQI

202031AQI

10
3
18
3
18
26
4
29
2
18
12
1
19
31
26
4
29
2
224
30
1

Highest AQI recorded in

August

50AQI

Lowest AQI recorded in

July

21AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
42AQI
Least Polluted Year Recorded
2020(Avg.)
31AQI

Ritto's annual 2025 AQI (42) shows an average percentage change of 22.7% (worsened AQI) compared to previous years: 2020 (31), 2021 (33), 2022 (36), 2023 (38), 2024 (33).