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HistoryAQIPM2.5PM10COSO2NO2O3

Nagahama, 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

Nagahama, Shiga, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
8th Oct 2025
54AQI
Lowest AQI recorded on
7th Oct 2022
15AQI

Same Day Analysis (12th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 12th Oct - 13th Oct 2025

Nagahama, Shiga, Japan

AQI
Day
Night
.

5 AM12th Oct 2025

5 PM

4 AM13th Oct 2025

Day time
Avg. Highest Time
7AM12th Oct

56AQI

Avg. Lowest Time
3PM12th Oct

40AQI

Night time
Avg. Highest Time
9PM12th Oct

53AQI

Avg. Lowest Time
4AM13th Oct

46AQI

In the last 24 hours,

Nagahama's AQI reached its highest point of 56 at 7 AM during the Day, while the lowest point, 40, was recorded at 3 PM during the Day between 12th Oct and 13th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Nagahama, Shiga, Japan

SepOct
13th - 14th14th - 15th15th - 16th16th - 17th17th - 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
Day
Night
13th Sep 2025325 AMAQI
13th Sep 2025326 AMAQI
13th Sep 2025317 AMAQI
13th Sep 2025328 AMAQI
13th Sep 2025219 AMAQI
13th Sep 20251610 AMAQI
13th Sep 20251911 AMAQI
13th Sep 20252512 PMAQI
13th Sep 2025231 PMAQI
13th Sep 2025222 PMAQI
13th Sep 2025223 PMAQI
13th Sep 2025264 PMAQI
13th Sep 2025235 PMAQI
13th Sep 2025266 PMAQI
13th Sep 2025277 PMAQI
13th Sep 2025298 PMAQI
13th Sep 2025289 PMAQI
13th Sep 20253110 PMAQI
13th Sep 20253711 PMAQI
14th Sep 20253012 AMAQI
14th Sep 2025341 AMAQI
14th Sep 2025322 AMAQI
14th Sep 2025323 AMAQI
14th Sep 2025324 AMAQI

24°C21/28°C

14th Sep 2025315 AMAQI
14th Sep 2025306 AMAQI
14th Sep 2025317 AMAQI
14th Sep 2025328 AMAQI
14th Sep 2025289 AMAQI
14th Sep 20252910 AMAQI
14th Sep 20253011 AMAQI
14th Sep 20254212 PMAQI
14th Sep 2025461 PMAQI
14th Sep 2025342 PMAQI
14th Sep 2025343 PMAQI
14th Sep 2025314 PMAQI
14th Sep 2025425 PMAQI
14th Sep 2025486 PMAQI
14th Sep 2025467 PMAQI
14th Sep 2025388 PMAQI
14th Sep 2025409 PMAQI
14th Sep 20254010 PMAQI
14th Sep 20253611 PMAQI
15th Sep 20253912 AMAQI
15th Sep 2025361 AMAQI
15th Sep 2025342 AMAQI
15th Sep 2025353 AMAQI
15th Sep 2025334 AMAQI

25°C22/28°C

15th Sep 2025325 AMAQI
15th Sep 2025366 AMAQI
15th Sep 2025357 AMAQI
15th Sep 2025348 AMAQI
15th Sep 2025349 AMAQI
15th Sep 20253910 AMAQI
15th Sep 20254011 AMAQI
15th Sep 20254312 PMAQI
15th Sep 2025261 PMAQI
15th Sep 2025342 PMAQI
15th Sep 2025323 PMAQI
15th Sep 2025284 PMAQI
15th Sep 2025235 PMAQI
15th Sep 2025286 PMAQI
15th Sep 2025287 PMAQI
15th Sep 2025278 PMAQI
15th Sep 2025349 PMAQI
15th Sep 20253210 PMAQI
15th Sep 20253211 PMAQI
16th Sep 20253112 AMAQI
16th Sep 2025321 AMAQI
16th Sep 2025342 AMAQI
16th Sep 2025343 AMAQI
16th Sep 2025354 AMAQI

26°C22/31°C

16th Sep 2025345 AMAQI
16th Sep 2025346 AMAQI
16th Sep 2025357 AMAQI
16th Sep 2025368 AMAQI
16th Sep 2025369 AMAQI
16th Sep 20253510 AMAQI
16th Sep 20253911 AMAQI
16th Sep 20254912 PMAQI
16th Sep 2025481 PMAQI
16th Sep 2025492 PMAQI
16th Sep 2025423 PMAQI
16th Sep 2025434 PMAQI
16th Sep 2025385 PMAQI
16th Sep 2025326 PMAQI
16th Sep 2025387 PMAQI
16th Sep 2025428 PMAQI
16th Sep 2025439 PMAQI
16th Sep 20255010 PMAQI
16th Sep 20254411 PMAQI
17th Sep 20255112 AMAQI
17th Sep 2025391 AMAQI
17th Sep 2025322 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025344 AMAQI

26°C21/31°C

17th Sep 2025355 AMAQI
17th Sep 2025346 AMAQI
17th Sep 2025357 AMAQI
17th Sep 2025368 AMAQI
17th Sep 2025549 AMAQI
17th Sep 20256010 AMAQI
17th Sep 20256111 AMAQI
17th Sep 20256712 PMAQI
17th Sep 2025611 PMAQI
17th Sep 2025612 PMAQI
17th Sep 2025563 PMAQI
17th Sep 2025544 PMAQI
17th Sep 2025555 PMAQI
17th Sep 2025506 PMAQI
17th Sep 2025507 PMAQI
17th Sep 2025548 PMAQI
17th Sep 2025509 PMAQI
17th Sep 20254710 PMAQI
17th Sep 20254211 PMAQI
18th Sep 20254012 AMAQI
18th Sep 2025381 AMAQI
18th Sep 2025352 AMAQI
18th Sep 2025363 AMAQI
18th Sep 2025404 AMAQI

26°C22/31°C

18th Sep 2025445 AMAQI
18th Sep 2025446 AMAQI
18th Sep 2025447 AMAQI
18th Sep 2025438 AMAQI
18th Sep 2025559 AMAQI
18th Sep 20255910 AMAQI
18th Sep 20255611 AMAQI
18th Sep 20255312 PMAQI
18th Sep 2025531 PMAQI
18th Sep 2025402 PMAQI
18th Sep 2025223 PMAQI
18th Sep 2025174 PMAQI
18th Sep 2025185 PMAQI
18th Sep 2025166 PMAQI
18th Sep 2025137 PMAQI
18th Sep 2025198 PMAQI
18th Sep 2025279 PMAQI
18th Sep 20252810 PMAQI
18th Sep 20253011 PMAQI
19th Sep 20253012 AMAQI
19th Sep 2025321 AMAQI
19th Sep 2025392 AMAQI
19th Sep 2025403 AMAQI
19th Sep 2025404 AMAQI

24°C19/28°C

19th Sep 2025425 AMAQI
19th Sep 2025426 AMAQI
19th Sep 2025417 AMAQI
19th Sep 2025428 AMAQI
19th Sep 2025219 AMAQI
19th Sep 20252110 AMAQI
19th Sep 20251911 AMAQI
19th Sep 20251612 PMAQI
19th Sep 2025201 PMAQI
19th Sep 2025212 PMAQI
19th Sep 2025213 PMAQI
19th Sep 2025204 PMAQI
19th Sep 2025205 PMAQI
19th Sep 2025216 PMAQI
19th Sep 2025187 PMAQI
19th Sep 2025268 PMAQI
19th Sep 2025319 PMAQI
19th Sep 20253210 PMAQI
19th Sep 20253211 PMAQI
20th Sep 20253212 AMAQI
20th Sep 2025351 AMAQI
20th Sep 2025382 AMAQI
20th Sep 2025373 AMAQI
20th Sep 2025364 AMAQI

22°C18/27°C

20th Sep 2025345 AMAQI
20th Sep 2025346 AMAQI
20th Sep 2025347 AMAQI
20th Sep 2025348 AMAQI
20th Sep 2025349 AMAQI
20th Sep 20253610 AMAQI
20th Sep 20253411 AMAQI
20th Sep 20252812 PMAQI
20th Sep 2025321 PMAQI
20th Sep 2025282 PMAQI
20th Sep 2025263 PMAQI
20th Sep 2025264 PMAQI
20th Sep 2025305 PMAQI
20th Sep 2025346 PMAQI
20th Sep 2025327 PMAQI
20th Sep 2025308 PMAQI
20th Sep 2025349 PMAQI
20th Sep 20253710 PMAQI
20th Sep 20254211 PMAQI
21st Sep 20254012 AMAQI
21st Sep 2025361 AMAQI
21st Sep 2025342 AMAQI
21st Sep 2025343 AMAQI
21st Sep 2025344 AMAQI

21°C19/23°C

21st Sep 2025335 AMAQI
21st Sep 2025346 AMAQI
21st Sep 2025347 AMAQI
21st Sep 2025338 AMAQI
21st Sep 2025189 AMAQI
21st Sep 20251610 AMAQI
21st Sep 20251811 AMAQI
21st Sep 20251712 PMAQI
21st Sep 2025161 PMAQI
21st Sep 2025162 PMAQI
21st Sep 2025173 PMAQI
21st Sep 2025154 PMAQI
21st Sep 2025145 PMAQI
21st Sep 2025166 PMAQI
21st Sep 2025157 PMAQI
21st Sep 2025198 PMAQI
21st Sep 2025279 PMAQI
21st Sep 20252710 PMAQI
21st Sep 20252711 PMAQI
22nd Sep 20252712 AMAQI
22nd Sep 2025311 AMAQI
22nd Sep 2025352 AMAQI
22nd Sep 2025343 AMAQI
22nd Sep 2025344 AMAQI

21°C16/26°C

22nd Sep 2025315 AMAQI
22nd Sep 2025316 AMAQI
22nd Sep 2025317 AMAQI
22nd Sep 2025318 AMAQI
22nd Sep 2025209 AMAQI
22nd Sep 20251910 AMAQI
22nd Sep 20252511 AMAQI
22nd Sep 20252712 PMAQI
22nd Sep 2025211 PMAQI
22nd Sep 2025222 PMAQI
22nd Sep 2025233 PMAQI
22nd Sep 2025204 PMAQI
22nd Sep 2025215 PMAQI
22nd Sep 2025256 PMAQI
22nd Sep 2025247 PMAQI
22nd Sep 2025288 PMAQI
22nd Sep 2025299 PMAQI
22nd Sep 20253010 PMAQI
22nd Sep 20253011 PMAQI
23rd Sep 20253012 AMAQI
23rd Sep 2025311 AMAQI
23rd Sep 2025322 AMAQI
23rd Sep 2025323 AMAQI
23rd Sep 2025304 AMAQI

19°C14/25°C

23rd Sep 2025295 AMAQI
23rd Sep 2025306 AMAQI
23rd Sep 2025297 AMAQI
23rd Sep 2025298 AMAQI
23rd Sep 2025269 AMAQI
23rd Sep 20252710 AMAQI
23rd Sep 20253011 AMAQI
23rd Sep 20253412 PMAQI
23rd Sep 2025311 PMAQI
23rd Sep 2025262 PMAQI
23rd Sep 2025363 PMAQI
23rd Sep 2025384 PMAQI
23rd Sep 2025345 PMAQI
23rd Sep 2025316 PMAQI
23rd Sep 2025297 PMAQI
23rd Sep 2025288 PMAQI
23rd Sep 2025289 PMAQI
23rd Sep 20252910 PMAQI
23rd Sep 20252811 PMAQI
24th Sep 20252812 AMAQI
24th Sep 2025301 AMAQI
24th Sep 2025302 AMAQI
24th Sep 2025303 AMAQI
24th Sep 2025304 AMAQI

20°C18/24°C

24th Sep 2025295 AMAQI
24th Sep 2025296 AMAQI
24th Sep 2025307 AMAQI
24th Sep 2025298 AMAQI
24th Sep 2025349 AMAQI
24th Sep 20253510 AMAQI
24th Sep 20254011 AMAQI
24th Sep 20254312 PMAQI
24th Sep 2025411 PMAQI
24th Sep 2025382 PMAQI
24th Sep 2025323 PMAQI
24th Sep 2025294 PMAQI
24th Sep 2025305 PMAQI
24th Sep 2025346 PMAQI
24th Sep 2025357 PMAQI
24th Sep 2025328 PMAQI
24th Sep 2025289 PMAQI
24th Sep 20252710 PMAQI
24th Sep 20252911 PMAQI
25th Sep 20253012 AMAQI
25th Sep 2025291 AMAQI
25th Sep 2025282 AMAQI
25th Sep 2025283 AMAQI
25th Sep 2025304 AMAQI

20°C17/25°C

25th Sep 2025305 AMAQI
25th Sep 2025306 AMAQI
25th Sep 2025307 AMAQI
25th Sep 2025318 AMAQI
25th Sep 2025309 AMAQI
25th Sep 20253010 AMAQI
25th Sep 20253011 AMAQI
25th Sep 20252812 PMAQI
25th Sep 2025331 PMAQI
25th Sep 2025422 PMAQI
25th Sep 2025453 PMAQI
25th Sep 2025364 PMAQI
25th Sep 2025275 PMAQI
25th Sep 2025276 PMAQI
25th Sep 2025347 PMAQI
25th Sep 2025328 PMAQI
25th Sep 2025339 PMAQI
25th Sep 20252410 PMAQI
25th Sep 20252211 PMAQI
26th Sep 20252212 AMAQI
26th Sep 2025181 AMAQI
26th Sep 2025212 AMAQI
26th Sep 2025223 AMAQI
26th Sep 2025224 AMAQI

22°C18/26°C

26th Sep 2025225 AMAQI
26th Sep 2025186 AMAQI
26th Sep 2025217 AMAQI
26th Sep 2025278 AMAQI
26th Sep 2025259 AMAQI
26th Sep 20252210 AMAQI
26th Sep 20253311 AMAQI
26th Sep 20253212 PMAQI
26th Sep 2025431 PMAQI
26th Sep 2025482 PMAQI
26th Sep 2025313 PMAQI
26th Sep 2025284 PMAQI
26th Sep 2025285 PMAQI
26th Sep 2025286 PMAQI
26th Sep 2025277 PMAQI
26th Sep 2025268 PMAQI
26th Sep 2025309 PMAQI
26th Sep 20253010 PMAQI
26th Sep 20253111 PMAQI
27th Sep 20253012 AMAQI
27th Sep 2025311 AMAQI
27th Sep 2025312 AMAQI
27th Sep 2025313 AMAQI
27th Sep 2025314 AMAQI

23°C17/28°C

27th Sep 2025285 AMAQI
27th Sep 2025236 AMAQI
27th Sep 2025247 AMAQI
27th Sep 2025278 AMAQI
27th Sep 2025289 AMAQI
27th Sep 20254110 AMAQI
27th Sep 20253411 AMAQI
27th Sep 20253712 PMAQI
27th Sep 2025371 PMAQI
27th Sep 2025382 PMAQI
27th Sep 2025403 PMAQI
27th Sep 2025334 PMAQI
27th Sep 2025275 PMAQI
27th Sep 2025236 PMAQI
27th Sep 2025197 PMAQI
27th Sep 2025178 PMAQI
27th Sep 2025179 PMAQI
27th Sep 20252110 PMAQI
27th Sep 20252311 PMAQI
28th Sep 20252312 AMAQI
28th Sep 2025311 AMAQI
28th Sep 2025242 AMAQI
28th Sep 2025223 AMAQI
28th Sep 2025224 AMAQI

21°C17/26°C

28th Sep 2025225 AMAQI
28th Sep 2025226 AMAQI
28th Sep 2025217 AMAQI
28th Sep 2025228 AMAQI
28th Sep 2025269 AMAQI
28th Sep 20254210 AMAQI
28th Sep 20254911 AMAQI
28th Sep 20255012 PMAQI
28th Sep 2025411 PMAQI
28th Sep 2025532 PMAQI
28th Sep 2025463 PMAQI
28th Sep 2025444 PMAQI
28th Sep 2025385 PMAQI
28th Sep 2025276 PMAQI
28th Sep 2025287 PMAQI
28th Sep 2025238 PMAQI
28th Sep 2025279 PMAQI
28th Sep 20252610 PMAQI
28th Sep 20251911 PMAQI
29th Sep 20251712 AMAQI
29th Sep 2025191 AMAQI
29th Sep 2025172 AMAQI
29th Sep 2025213 AMAQI
29th Sep 2025244 AMAQI

22°C19/27°C

29th Sep 2025305 AMAQI
29th Sep 2025426 AMAQI
29th Sep 2025357 AMAQI
29th Sep 2025318 AMAQI
29th Sep 2025269 AMAQI
29th Sep 20251410 AMAQI
29th Sep 20251611 AMAQI
29th Sep 20252112 PMAQI
29th Sep 2025291 PMAQI
29th Sep 2025172 PMAQI
29th Sep 2025253 PMAQI
29th Sep 2025194 PMAQI
29th Sep 2025125 PMAQI
29th Sep 202596 PMAQI
29th Sep 2025117 PMAQI
29th Sep 2025168 PMAQI
29th Sep 2025129 PMAQI
29th Sep 20251210 PMAQI
29th Sep 20251411 PMAQI
30th Sep 20251112 AMAQI
30th Sep 2025101 AMAQI
30th Sep 2025152 AMAQI
30th Sep 2025113 AMAQI
30th Sep 2025124 AMAQI

21°C16/24°C

30th Sep 2025125 AMAQI
30th Sep 2025126 AMAQI
30th Sep 2025107 AMAQI
30th Sep 2025128 AMAQI
30th Sep 2025149 AMAQI
30th Sep 20251510 AMAQI
30th Sep 20252411 AMAQI
30th Sep 20252312 PMAQI
30th Sep 2025181 PMAQI
30th Sep 2025302 PMAQI
30th Sep 2025223 PMAQI
30th Sep 2025204 PMAQI
30th Sep 2025205 PMAQI
30th Sep 2025136 PMAQI
30th Sep 2025157 PMAQI
30th Sep 2025168 PMAQI
30th Sep 2025159 PMAQI
30th Sep 20251710 PMAQI
30th Sep 20251911 PMAQI
1st Oct 20252412 AMAQI
1st Oct 2025261 AMAQI
1st Oct 2025232 AMAQI
1st Oct 2025233 AMAQI
1st Oct 2025234 AMAQI

20°C16/25°C

1st Oct 2025225 AMAQI
1st Oct 2025236 AMAQI
1st Oct 2025227 AMAQI
1st Oct 2025248 AMAQI
1st Oct 2025279 AMAQI
1st Oct 20252510 AMAQI
1st Oct 20252111 AMAQI
1st Oct 20253812 PMAQI
1st Oct 2025501 PMAQI
1st Oct 2025442 PMAQI
1st Oct 2025473 PMAQI
1st Oct 2025184 PMAQI
1st Oct 2025485 PMAQI
1st Oct 2025476 PMAQI
1st Oct 2025237 PMAQI
1st Oct 2025228 PMAQI
1st Oct 2025299 PMAQI
1st Oct 20252110 PMAQI
1st Oct 20252811 PMAQI
2nd Oct 20252412 AMAQI
2nd Oct 2025491 AMAQI
2nd Oct 2025532 AMAQI
2nd Oct 2025553 AMAQI
2nd Oct 2025404 AMAQI

19°C15/25°C

2nd Oct 2025405 AMAQI
2nd Oct 2025406 AMAQI
2nd Oct 2025377 AMAQI
2nd Oct 2025418 AMAQI
2nd Oct 2025429 AMAQI
2nd Oct 20254210 AMAQI
2nd Oct 20254411 AMAQI
2nd Oct 20254112 PMAQI
2nd Oct 2025451 PMAQI
2nd Oct 2025542 PMAQI
2nd Oct 2025443 PMAQI
2nd Oct 2025364 PMAQI
2nd Oct 2025495 PMAQI
2nd Oct 2025506 PMAQI
2nd Oct 2025437 PMAQI
2nd Oct 2025468 PMAQI
2nd Oct 2025429 PMAQI
2nd Oct 20254110 PMAQI
2nd Oct 20253511 PMAQI
3rd Oct 20253412 AMAQI
3rd Oct 2025391 AMAQI
3rd Oct 2025462 AMAQI
3rd Oct 2025453 AMAQI
3rd Oct 2025424 AMAQI

19°C15/25°C

3rd Oct 2025375 AMAQI
3rd Oct 2025376 AMAQI
3rd Oct 2025347 AMAQI
3rd Oct 2025358 AMAQI
3rd Oct 2025409 AMAQI
3rd Oct 20254310 AMAQI
3rd Oct 20254711 AMAQI
3rd Oct 20255112 PMAQI
3rd Oct 2025511 PMAQI
3rd Oct 2025542 PMAQI
3rd Oct 2025563 PMAQI
3rd Oct 2025584 PMAQI
3rd Oct 2025525 PMAQI
3rd Oct 2025586 PMAQI
3rd Oct 2025587 PMAQI
3rd Oct 2025488 PMAQI
3rd Oct 2025619 PMAQI
3rd Oct 20256210 PMAQI
3rd Oct 20255811 PMAQI
4th Oct 20255712 AMAQI
4th Oct 2025571 AMAQI
4th Oct 2025512 AMAQI
4th Oct 2025503 AMAQI
4th Oct 2025504 AMAQI

20°C17/24°C

4th Oct 2025445 AMAQI
4th Oct 2025456 AMAQI
4th Oct 2025457 AMAQI
4th Oct 2025428 AMAQI
4th Oct 2025479 AMAQI
4th Oct 20254910 AMAQI
4th Oct 20254211 AMAQI
4th Oct 20254412 PMAQI
4th Oct 2025411 PMAQI
4th Oct 2025442 PMAQI
4th Oct 2025393 PMAQI
4th Oct 2025314 PMAQI
4th Oct 2025365 PMAQI
4th Oct 2025396 PMAQI
4th Oct 2025437 PMAQI
4th Oct 2025438 PMAQI
4th Oct 2025459 PMAQI
4th Oct 20254210 PMAQI
4th Oct 20254411 PMAQI
5th Oct 20253912 AMAQI
5th Oct 2025401 AMAQI
5th Oct 2025472 AMAQI
5th Oct 2025493 AMAQI
5th Oct 2025514 AMAQI

18°C16/19°C

5th Oct 2025425 AMAQI
5th Oct 2025466 AMAQI
5th Oct 2025537 AMAQI
5th Oct 2025538 AMAQI
5th Oct 2025549 AMAQI
5th Oct 20254910 AMAQI
5th Oct 20254711 AMAQI
5th Oct 20254612 PMAQI
5th Oct 2025501 PMAQI
5th Oct 2025472 PMAQI
5th Oct 2025483 PMAQI
5th Oct 2025414 PMAQI
5th Oct 2025405 PMAQI
5th Oct 2025396 PMAQI
5th Oct 2025377 PMAQI
5th Oct 2025408 PMAQI
5th Oct 2025409 PMAQI
5th Oct 20253810 PMAQI
5th Oct 20254011 PMAQI
6th Oct 20254512 AMAQI
6th Oct 2025501 AMAQI
6th Oct 2025472 AMAQI
6th Oct 2025493 AMAQI
6th Oct 2025514 AMAQI

19°C16/21°C

6th Oct 2025505 AMAQI
6th Oct 2025216 AMAQI
6th Oct 2025387 AMAQI
6th Oct 2025428 AMAQI
6th Oct 2025469 AMAQI
6th Oct 20254710 AMAQI
6th Oct 20254711 AMAQI
6th Oct 20254112 PMAQI
6th Oct 2025451 PMAQI
6th Oct 2025542 PMAQI
6th Oct 2025453 PMAQI
6th Oct 2025524 PMAQI
6th Oct 2025645 PMAQI
6th Oct 2025626 PMAQI
6th Oct 2025587 PMAQI
6th Oct 2025548 PMAQI
6th Oct 2025519 PMAQI
6th Oct 20255010 PMAQI
6th Oct 20255011 PMAQI
7th Oct 20255412 AMAQI
7th Oct 2025581 AMAQI
7th Oct 2025602 AMAQI

20°C17/26°C

7th Oct 2025388 PMAQI
7th Oct 2025359 PMAQI
7th Oct 20255010 PMAQI
7th Oct 20255211 PMAQI
8th Oct 20255112 AMAQI
8th Oct 2025521 AMAQI
8th Oct 2025562 AMAQI
8th Oct 2025523 AMAQI
8th Oct 2025514 AMAQI

21°C18/25°C

8th Oct 2025525 AMAQI
8th Oct 2025566 AMAQI
8th Oct 2025467 AMAQI
8th Oct 2025448 AMAQI
8th Oct 2025449 AMAQI
8th Oct 20255210 AMAQI
8th Oct 20255111 AMAQI
8th Oct 20255812 PMAQI
8th Oct 2025631 PMAQI
8th Oct 2025582 PMAQI
8th Oct 2025583 PMAQI
8th Oct 2025584 PMAQI
8th Oct 2025565 PMAQI
8th Oct 2025596 PMAQI
8th Oct 2025577 PMAQI
8th Oct 2025548 PMAQI
8th Oct 2025559 PMAQI
8th Oct 20255010 PMAQI
8th Oct 20254711 PMAQI
9th Oct 20254512 AMAQI
9th Oct 2025481 AMAQI
9th Oct 2025502 AMAQI
9th Oct 2025553 AMAQI
9th Oct 2025464 AMAQI

22°C18/27°C

9th Oct 2025475 AMAQI
9th Oct 2025456 AMAQI
9th Oct 2025467 AMAQI
9th Oct 2025438 AMAQI
9th Oct 2025439 AMAQI
9th Oct 20254810 AMAQI
9th Oct 20254611 AMAQI
9th Oct 20255412 PMAQI
9th Oct 2025551 PMAQI
9th Oct 2025522 PMAQI
9th Oct 2025533 PMAQI
9th Oct 2025544 PMAQI
9th Oct 2025555 PMAQI
9th Oct 2025546 PMAQI
9th Oct 2025447 PMAQI
9th Oct 2025408 PMAQI
9th Oct 2025409 PMAQI
9th Oct 20254210 PMAQI
9th Oct 20254911 PMAQI
10th Oct 20255412 AMAQI
10th Oct 2025541 AMAQI
10th Oct 2025532 AMAQI
10th Oct 2025553 AMAQI
10th Oct 2025564 AMAQI

19°C14/24°C

10th Oct 2025575 AMAQI
10th Oct 2025436 AMAQI
10th Oct 2025527 AMAQI
10th Oct 2025528 AMAQI
10th Oct 2025549 AMAQI
10th Oct 20255510 AMAQI
10th Oct 20254711 AMAQI
10th Oct 20254812 PMAQI
10th Oct 2025561 PMAQI
10th Oct 2025492 PMAQI
10th Oct 2025463 PMAQI
10th Oct 2025544 PMAQI
10th Oct 2025615 PMAQI
10th Oct 2025616 PMAQI
10th Oct 2025507 PMAQI
10th Oct 2025508 PMAQI
10th Oct 2025609 PMAQI
10th Oct 20255410 PMAQI
10th Oct 20255211 PMAQI
11th Oct 20254612 AMAQI
11th Oct 2025521 AMAQI
11th Oct 2025572 AMAQI
11th Oct 2025543 AMAQI
11th Oct 2025584 AMAQI

18°C13/23°C

11th Oct 2025615 AMAQI
11th Oct 2025586 AMAQI
11th Oct 2025567 AMAQI
11th Oct 2025458 AMAQI
11th Oct 2025459 AMAQI
11th Oct 20254310 AMAQI
11th Oct 20254911 AMAQI
11th Oct 20254612 PMAQI
11th Oct 2025461 PMAQI
11th Oct 2025542 PMAQI
11th Oct 2025513 PMAQI
11th Oct 2025524 PMAQI
11th Oct 2025515 PMAQI
11th Oct 2025536 PMAQI
11th Oct 2025537 PMAQI
11th Oct 2025538 PMAQI
11th Oct 2025519 PMAQI
11th Oct 20255010 PMAQI
11th Oct 20255111 PMAQI
12th Oct 20255512 AMAQI
12th Oct 2025531 AMAQI
12th Oct 2025522 AMAQI
12th Oct 2025483 AMAQI
12th Oct 2025474 AMAQI

20°C16/23°C

12th Oct 2025535 AMAQI
12th Oct 2025556 AMAQI
12th Oct 2025567 AMAQI
12th Oct 2025538 AMAQI
12th Oct 2025539 AMAQI
12th Oct 20255110 AMAQI
12th Oct 20255111 AMAQI
12th Oct 20255312 PMAQI
12th Oct 2025511 PMAQI
12th Oct 2025482 PMAQI
12th Oct 2025403 PMAQI
12th Oct 2025514 PMAQI
12th Oct 2025525 PMAQI
12th Oct 2025466 PMAQI
12th Oct 2025477 PMAQI
12th Oct 2025498 PMAQI
12th Oct 2025539 PMAQI
12th Oct 20255110 PMAQI
12th Oct 20254911 PMAQI
13th Oct 20254912 AMAQI
13th Oct 2025461 AMAQI
13th Oct 2025462 AMAQI
13th Oct 2025463 AMAQI
13th Oct 2025464 AMAQI

21°C18/26°C

13th Oct 2025465 AMAQI
5 AM
13th Oct 2025556 AMAQI
13th Oct 2025537 AMAQI
13th Oct 2025448 AMAQI
13th Oct 2025429 AMAQI
13th Oct 20254710 AMAQI
11 AM
5 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
12 PM - 2 PM

40AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
5 AM - 11 AM

37AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 2 PM (Avg. 40), while the lowest AQI was between 5 AM to 11 AM (Avg. 37).
Night time
Avg. Highest Time
1 AM - 11 PM

37AQI

10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 8 PM

37AQI

8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 11 PM (Avg. 37), while the lowest AQI was between 12 AM to 8 PM (Avg. 37).

2025 Days Vs Air Quality

Nagahama, Shiga, Japan

2025

74%

211

26%

73

0.3%

1

Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)

Good
211 Days
Moderate
73 Days
Poor
1 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 74%

Health Risk Level:

Low

In 2025, 74% of 286 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

Nagahama, 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
29AQI
2nd January 2025
31AQI
3rd January 2025
29AQI
4th January 2025
27AQI
5th January 2025
28AQI
6th January 2025
28AQI
7th January 2025
33AQI
8th January 2025
28AQI
9th January 2025
30AQI
10th January 2025
26AQI
11th January 2025
24AQI
12th January 2025
31AQI
13th January 2025
26AQI
14th January 2025
44AQI
15th January 2025
33AQI
16th January 2025
31AQI
17th January 2025
29AQI
18th January 2025
29AQI
19th January 2025
31AQI
20th January 2025
34AQI
21st January 2025
35AQI
22nd January 2025
38AQI
23rd January 2025
56AQI
24th January 2025
52AQI
25th January 2025
42AQI
26th January 2025
38AQI
27th January 2025
34AQI
28th January 2025
32AQI
29th January 2025
34AQI
30th January 2025
33AQI
31st January 2025
57AQI
1st February 2025
59AQI
2nd February 2025
41AQI
3rd February 2025
45AQI
4th February 2025
38AQI
5th February 2025
38AQI
6th February 2025
32AQI
7th February 2025
36AQI
8th February 2025
32AQI
9th February 2025
31AQI
10th February 2025
30AQI
11th February 2025
32AQI
12th February 2025
29AQI
13th February 2025
31AQI
14th February 2025
34AQI
15th February 2025
31AQI
16th February 2025
34AQI
17th February 2025
38AQI
18th February 2025
31AQI
19th February 2025
32AQI
20th February 2025
32AQI
21st February 2025
31AQI
22nd February 2025
32AQI
23rd February 2025
32AQI
24th February 2025
33AQI
25th February 2025
34AQI
26th February 2025
48AQI
27th February 2025
51AQI
28th February 2025
56AQI
1st March 2025
58AQI
2nd March 2025
59AQI
3rd March 2025
42AQI
4th March 2025
37AQI
5th March 2025
28AQI
6th March 2025
36AQI
7th March 2025
34AQI
8th March 2025
35AQI
9th March 2025
36AQI
10th March 2025
38AQI
11th March 2025
34AQI
12th March 2025
32AQI
13th March 2025
49AQI
14th March 2025
42AQI
15th March 2025
39AQI
16th March 2025
23AQI
17th March 2025
25AQI
18th March 2025
27AQI
19th March 2025
24AQI
20th March 2025
38AQI
21st March 2025
56AQI
22nd March 2025
58AQI
23rd March 2025
72AQI
24th March 2025
72AQI
25th March 2025
82AQI
26th March 2025
81AQI
27th March 2025
88AQI
28th March 2025
52AQI
29th March 2025
49AQI
30th March 2025
36AQI
31st March 2025
37AQI
1st April 2025
35AQI
2nd April 2025
31AQI
3rd April 2025
24AQI
4th April 2025
28AQI
5th April 2025
39AQI
6th April 2025
42AQI
7th April 2025
47AQI
8th April 2025
53AQI
9th April 2025
44AQI
10th April 2025
56AQI
11th April 2025
54AQI
12th April 2025
55AQI
13th April 2025
31AQI
14th April 2025
50AQI
15th April 2025
24AQI
16th April 2025
46AQI
17th April 2025
47AQI
18th April 2025
61AQI
19th April 2025
65AQI
20th April 2025
53AQI
21st April 2025
44AQI
22nd April 2025
50AQI
23rd April 2025
25AQI
24th April 2025
27AQI
25th April 2025
62AQI
26th April 2025
53AQI
27th April 2025
65AQI
28th April 2025
46AQI
29th April 2025
55AQI
30th April 2025
67AQI
1st May 2025
58AQI
2nd May 2025
39AQI
3rd May 2025
46AQI
4th May 2025
40AQI
5th May 2025
46AQI
6th May 2025
30AQI
7th May 2025
32AQI
8th May 2025
35AQI
9th May 2025
32AQI
10th May 2025
28AQI
11th May 2025
31AQI
12th May 2025
42AQI
13th May 2025
53AQI
14th May 2025
57AQI
15th May 2025
58AQI
16th May 2025
56AQI
17th May 2025
39AQI
18th May 2025
54AQI
19th May 2025
54AQI
20th May 2025
72AQI
21st May 2025
62AQI
22nd May 2025
41AQI
23rd May 2025
53AQI
24th May 2025
43AQI
25th May 2025
31AQI
26th May 2025
33AQI
27th May 2025
32AQI
28th May 2025
30AQI
29th May 2025
39AQI
30th May 2025
37AQI
31st May 2025
31AQI
1st June 2025
38AQI
2nd June 2025
48AQI
3rd June 2025
27AQI
4th June 2025
42AQI
5th June 2025
38AQI
6th June 2025
50AQI
7th June 2025
53AQI
8th June 2025
68AQI
9th June 2025
50AQI
10th June 2025
30AQI
11th June 2025
35AQI
12th June 2025
45AQI
13th June 2025
50AQI
14th June 2025
36AQI
15th June 2025
30AQI
16th June 2025
44AQI
17th June 2025
46AQI
18th June 2025
51AQI
19th June 2025
54AQI
20th June 2025
62AQI
21st June 2025
55AQI
22nd June 2025
54AQI
23rd June 2025
40AQI
24th June 2025
37AQI
25th June 2025
38AQI
26th June 2025
34AQI
27th June 2025
51AQI
28th June 2025
41AQI
29th June 2025
49AQI
30th June 2025
58AQI
1st July 2025
67AQI
2nd July 2025
110AQI
3rd July 2025
84AQI
4th July 2025
91AQI
5th July 2025
90AQI
6th July 2025
71AQI
7th July 2025
67AQI
8th July 2025
79AQI
9th July 2025
92AQI
10th July 2025
77AQI
11th July 2025
58AQI
12th July 2025
56AQI
13th July 2025
54AQI
14th July 2025
43AQI
15th July 2025
51AQI
16th July 2025
50AQI
17th July 2025
35AQI
18th July 2025
39AQI
19th July 2025
37AQI
20th July 2025
36AQI
21st July 2025
40AQI
22nd July 2025
41AQI
23rd July 2025
44AQI
24th July 2025
44AQI
25th July 2025
38AQI
26th July 2025
33AQI
27th July 2025
32AQI
28th July 2025
35AQI
29th July 2025
41AQI
30th July 2025
45AQI
31st July 2025
45AQI
1st August 2025
47AQI
2nd August 2025
45AQI
3rd August 2025
48AQI
4th August 2025
60AQI
5th August 2025
52AQI
6th August 2025
49AQI
7th August 2025
42AQI
8th August 2025
38AQI
9th August 2025
40AQI
10th August 2025
40AQI
11th August 2025
32AQI
12th August 2025
32AQI
13th August 2025
34AQI
14th August 2025
42AQI
15th August 2025
44AQI
16th August 2025
44AQI
17th August 2025
43AQI
18th August 2025
44AQI
19th August 2025
48AQI
20th August 2025
49AQI
21st August 2025
48AQI
22nd August 2025
46AQI
23rd August 2025
50AQI
24th August 2025
54AQI
25th August 2025
54AQI
26th August 2025
57AQI
27th August 2025
52AQI
28th August 2025
49AQI
29th August 2025
53AQI
30th August 2025
52AQI
31st August 2025
51AQI
1st September 2025
41AQI
2nd September 2025
38AQI
3rd September 2025
35AQI
4th September 2025
27AQI
5th September 2025
23AQI
6th September 2025
27AQI
7th September 2025
32AQI
8th September 2025
34AQI
9th September 2025
36AQI
10th September 2025
34AQI
11th September 2025
28AQI
12th September 2025
29AQI
13th September 2025
28AQI
14th September 2025
36AQI
15th September 2025
33AQI
16th September 2025
39AQI
17th September 2025
47AQI
18th September 2025
35AQI
19th September 2025
29AQI
20th September 2025
34AQI
21st September 2025
25AQI
22nd September 2025
27AQI
23rd September 2025
30AQI
24th September 2025
32AQI
25th September 2025
31AQI
26th September 2025
26AQI
27th September 2025
28AQI
28th September 2025
30AQI
29th September 2025
19AQI
30th September 2025
15AQI
1st October 2025
28AQI
2nd October 2025
41AQI
3rd October 2025
45AQI
4th October 2025
47AQI
5th October 2025
44AQI
6th October 2025
44AQI
7th October 2025
49AQI
8th October 2025
54AQI
9th October 2025
47AQI
10th October 2025
54AQI
11th October 2025
52AQI
12th October 2025
53AQI
13th October 2025
14th October 2025
15th October 2025
16th October 2025
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

34AQI

37AQI

46AQI

46AQI

43AQI

45AQI

56AQI

46AQI

31AQI

47AQI

No. of days

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

202543AQI

28
3
25
3
21
10
18
12
21
10
21
9
17
13
1
22
9
30
8
4
211
73
1

Highest AQI recorded in

July

56AQI

Lowest AQI recorded in

September

31AQI

202438AQI

31
27
2
24
7
21
9
27
4
25
5
23
8
26
5
26
4
30
1
24
6
31
315
51

Highest AQI recorded in

April

48AQI

Lowest AQI recorded in

December

30AQI

202339AQI

28
3
28
23
8
16
14
27
4
22
8
23
8
30
1
27
3
30
1
24
5
27
4
305
59

Highest AQI recorded in

April

51AQI

Lowest AQI recorded in

January

31AQI

202237AQI

31
19
2
20
11
12
5
19
12
23
7
17
4
1
25
3
26
5
27
3
31
251
52

Highest AQI recorded in

May

47AQI

Lowest AQI recorded in

August

25AQI

202136AQI

29
2
21
7
26
4
17
5
24
7
23
7
28
3
26
5
28
2
31
27
3
31
311
45

Highest AQI recorded in

June

46AQI

Lowest AQI recorded in

January

26AQI

202034AQI

10
3
18
3
17
1
24
6
28
3
12
16
3
18
1
29
2
27
3
30
1
213
39
3

Highest AQI recorded in

August

57AQI

Lowest AQI recorded in

December

22AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
43AQI
Least Polluted Year Recorded
2020(Avg.)
34AQI

Nagahama's annual 2025 AQI (43) shows an average percentage change of 17.02% (worsened AQI) compared to previous years: 2020 (34), 2021 (36), 2022 (37), 2023 (39), 2024 (38).