Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Hagi, Yamaguchi, Japan Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

October Air Quality Analysis

Hagi, Yamaguchi, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
7th Oct 2021
70AQI
Lowest AQI recorded on
26th Oct 2022
16AQI

Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 54 of Moderate air quality, showing improvement over 2022 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 4th Oct - 5th Oct 2025

Hagi, Yamaguchi, Japan

AQI
Day
Night
.

6 AM4th Oct 2025

6 PM

5 AM5th Oct 2025

Day time
Avg. Highest Time
12PM4th Oct

83AQI

Avg. Lowest Time
9AM4th Oct

57AQI

Night time
Avg. Highest Time
6PM4th Oct

70AQI

Avg. Lowest Time
5AM5th Oct

48AQI

In the last 24 hours,

Hagi's AQI reached its highest point of 83 at 12 PM during the Day, while the lowest point, 48, was recorded at 5 AM during the Night between 4th Oct and 5th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Hagi, Yamaguchi, Japan

SepOct
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
5th Sep 2025336 AMAQI
5th Sep 2025347 AMAQI
5th Sep 2025368 AMAQI
5th Sep 2025179 AMAQI
5th Sep 20251810 AMAQI
5th Sep 20251611 AMAQI
5th Sep 20251412 PMAQI
5th Sep 2025181 PMAQI
5th Sep 2025202 PMAQI
5th Sep 2025243 PMAQI
5th Sep 2025264 PMAQI
5th Sep 2025205 PMAQI
5th Sep 2025206 PMAQI
5th Sep 2025267 PMAQI
5th Sep 2025208 PMAQI
5th Sep 2025249 PMAQI
5th Sep 20252310 PMAQI
5th Sep 20252411 PMAQI
6th Sep 20252212 AMAQI
6th Sep 2025211 AMAQI
6th Sep 2025232 AMAQI
6th Sep 2025243 AMAQI
6th Sep 2025264 AMAQI
6th Sep 2025265 AMAQI

27°C24/29°C

6th Sep 2025266 AMAQI
6th Sep 2025267 AMAQI
6th Sep 2025268 AMAQI
6th Sep 2025269 AMAQI
6th Sep 20252210 AMAQI
6th Sep 20252611 AMAQI
6th Sep 20253012 PMAQI
6th Sep 2025351 PMAQI
6th Sep 2025262 PMAQI
6th Sep 2025283 PMAQI
6th Sep 2025284 PMAQI
6th Sep 2025285 PMAQI
6th Sep 2025266 PMAQI
6th Sep 2025247 PMAQI
6th Sep 2025288 PMAQI
6th Sep 2025299 PMAQI
6th Sep 20252910 PMAQI
6th Sep 20252611 PMAQI
7th Sep 20252912 AMAQI
7th Sep 2025261 AMAQI
7th Sep 2025252 AMAQI
7th Sep 2025243 AMAQI
7th Sep 2025254 AMAQI
7th Sep 2025255 AMAQI

26°C23/30°C

7th Sep 2025266 AMAQI
7th Sep 2025287 AMAQI
7th Sep 2025308 AMAQI
7th Sep 2025289 AMAQI
7th Sep 20253710 AMAQI
7th Sep 20253011 AMAQI
7th Sep 20254012 PMAQI
7th Sep 2025361 PMAQI
7th Sep 2025392 PMAQI
7th Sep 2025333 PMAQI
7th Sep 2025314 PMAQI
7th Sep 2025445 PMAQI
7th Sep 2025466 PMAQI
7th Sep 2025487 PMAQI
7th Sep 2025408 PMAQI
7th Sep 2025369 PMAQI
7th Sep 20253810 PMAQI
7th Sep 20253911 PMAQI
8th Sep 20253812 AMAQI
8th Sep 2025301 AMAQI
8th Sep 2025272 AMAQI
8th Sep 2025263 AMAQI
8th Sep 2025264 AMAQI
8th Sep 2025275 AMAQI

27°C25/30°C

8th Sep 2025276 AMAQI
8th Sep 2025287 AMAQI
8th Sep 2025288 AMAQI
8th Sep 2025279 AMAQI
8th Sep 20254010 AMAQI
8th Sep 20253411 AMAQI
8th Sep 20253112 PMAQI
8th Sep 2025381 PMAQI
8th Sep 2025362 PMAQI
8th Sep 2025373 PMAQI
8th Sep 2025264 PMAQI
8th Sep 2025325 PMAQI
8th Sep 2025366 PMAQI
8th Sep 2025357 PMAQI
8th Sep 2025388 PMAQI
8th Sep 2025329 PMAQI
8th Sep 20253110 PMAQI
8th Sep 20253211 PMAQI
9th Sep 20253112 AMAQI
9th Sep 2025321 AMAQI
9th Sep 2025332 AMAQI
9th Sep 2025333 AMAQI
9th Sep 2025334 AMAQI
9th Sep 2025335 AMAQI

26°C25/30°C

9th Sep 2025326 AMAQI
9th Sep 2025307 AMAQI
9th Sep 2025318 AMAQI
9th Sep 2025229 AMAQI
9th Sep 20253410 AMAQI
9th Sep 20253211 AMAQI
9th Sep 20252912 PMAQI
9th Sep 2025311 PMAQI
9th Sep 2025242 PMAQI
9th Sep 2025383 PMAQI
9th Sep 2025264 PMAQI
9th Sep 2025245 PMAQI
9th Sep 2025276 PMAQI
9th Sep 2025297 PMAQI
9th Sep 2025228 PMAQI
9th Sep 2025259 PMAQI
9th Sep 20252710 PMAQI
9th Sep 20252711 PMAQI
10th Sep 20253212 AMAQI
10th Sep 2025311 AMAQI
10th Sep 2025312 AMAQI
10th Sep 2025323 AMAQI
10th Sep 2025324 AMAQI
10th Sep 2025305 AMAQI

26°C24/28°C

10th Sep 2025326 AMAQI
10th Sep 2025317 AMAQI
10th Sep 2025308 AMAQI
10th Sep 2025349 AMAQI
10th Sep 20254410 AMAQI
10th Sep 20253311 AMAQI
10th Sep 20254112 PMAQI
10th Sep 2025321 PMAQI
10th Sep 2025362 PMAQI
10th Sep 2025353 PMAQI
10th Sep 2025284 PMAQI
10th Sep 2025275 PMAQI
10th Sep 2025276 PMAQI
10th Sep 2025327 PMAQI
10th Sep 2025308 PMAQI
10th Sep 2025289 PMAQI
10th Sep 20252810 PMAQI
10th Sep 20253411 PMAQI
11th Sep 20252612 AMAQI
11th Sep 2025341 AMAQI
11th Sep 2025342 AMAQI
11th Sep 2025353 AMAQI
11th Sep 2025324 AMAQI
11th Sep 2025325 AMAQI

25°C23/27°C

11th Sep 2025326 AMAQI
11th Sep 2025337 AMAQI
11th Sep 2025328 AMAQI
11th Sep 2025189 AMAQI
11th Sep 20253010 AMAQI
11th Sep 20252411 AMAQI
11th Sep 20253512 PMAQI
11th Sep 2025301 PMAQI
11th Sep 2025372 PMAQI
11th Sep 2025373 PMAQI
11th Sep 2025304 PMAQI
11th Sep 2025285 PMAQI
11th Sep 2025326 PMAQI
11th Sep 2025317 PMAQI
11th Sep 2025328 PMAQI
11th Sep 2025369 PMAQI
11th Sep 20253010 PMAQI
11th Sep 20253411 PMAQI
12th Sep 20253112 AMAQI
12th Sep 2025311 AMAQI
12th Sep 2025342 AMAQI
12th Sep 2025333 AMAQI
12th Sep 2025334 AMAQI
12th Sep 2025325 AMAQI

25°C23/28°C

12th Sep 2025326 AMAQI
12th Sep 2025327 AMAQI
12th Sep 2025328 AMAQI
12th Sep 2025209 AMAQI
12th Sep 20252010 AMAQI
12th Sep 20251311 AMAQI
12th Sep 20252112 PMAQI
12th Sep 2025271 PMAQI
12th Sep 2025302 PMAQI
12th Sep 2025253 PMAQI
12th Sep 2025294 PMAQI
12th Sep 2025275 PMAQI
12th Sep 2025326 PMAQI
12th Sep 2025247 PMAQI
12th Sep 2025258 PMAQI
12th Sep 2025309 PMAQI
12th Sep 20252610 PMAQI
12th Sep 20252611 PMAQI
13th Sep 20253012 AMAQI
13th Sep 2025331 AMAQI
13th Sep 2025332 AMAQI
13th Sep 2025343 AMAQI
13th Sep 2025324 AMAQI
13th Sep 2025325 AMAQI

25°C23/29°C

13th Sep 2025336 AMAQI
13th Sep 2025317 AMAQI
13th Sep 2025328 AMAQI
13th Sep 2025229 AMAQI
13th Sep 20252910 AMAQI
13th Sep 20253811 AMAQI
13th Sep 20253312 PMAQI
13th Sep 2025321 PMAQI
13th Sep 2025272 PMAQI
13th Sep 2025303 PMAQI
13th Sep 2025394 PMAQI
13th Sep 2025265 PMAQI
13th Sep 2025386 PMAQI
13th Sep 2025417 PMAQI
13th Sep 2025428 PMAQI
13th Sep 2025409 PMAQI
13th Sep 20254510 PMAQI
13th Sep 20253711 PMAQI
14th Sep 20253212 AMAQI
14th Sep 2025311 AMAQI
14th Sep 2025322 AMAQI
14th Sep 2025333 AMAQI
14th Sep 2025324 AMAQI
14th Sep 2025325 AMAQI

26°C24/28°C

14th Sep 2025326 AMAQI
14th Sep 2025327 AMAQI
14th Sep 2025338 AMAQI
14th Sep 2025249 AMAQI
14th Sep 20252410 AMAQI
14th Sep 20252411 AMAQI
14th Sep 20252612 PMAQI
14th Sep 2025231 PMAQI
14th Sep 2025272 PMAQI
14th Sep 2025253 PMAQI
14th Sep 2025294 PMAQI
14th Sep 2025325 PMAQI
14th Sep 2025366 PMAQI
14th Sep 2025307 PMAQI
14th Sep 2025338 PMAQI
14th Sep 2025379 PMAQI
14th Sep 20253410 PMAQI
14th Sep 20253211 PMAQI
15th Sep 20253212 AMAQI
15th Sep 2025321 AMAQI
15th Sep 2025352 AMAQI
15th Sep 2025333 AMAQI
15th Sep 2025324 AMAQI
15th Sep 2025315 AMAQI

26°C24/29°C

15th Sep 2025306 AMAQI
15th Sep 2025307 AMAQI
15th Sep 2025308 AMAQI
15th Sep 2025279 AMAQI
15th Sep 20252810 AMAQI
15th Sep 20253811 AMAQI
15th Sep 20254212 PMAQI
15th Sep 2025411 PMAQI
15th Sep 2025382 PMAQI
15th Sep 2025283 PMAQI
15th Sep 2025324 PMAQI
15th Sep 2025285 PMAQI
15th Sep 2025296 PMAQI
15th Sep 2025307 PMAQI
15th Sep 2025278 PMAQI
15th Sep 2025329 PMAQI
15th Sep 20252210 PMAQI
15th Sep 20253111 PMAQI
16th Sep 20252612 AMAQI
16th Sep 2025321 AMAQI
16th Sep 2025322 AMAQI
16th Sep 2025323 AMAQI
16th Sep 2025324 AMAQI
16th Sep 2025325 AMAQI

26°C24/29°C

16th Sep 2025326 AMAQI
16th Sep 2025327 AMAQI
16th Sep 2025338 AMAQI
16th Sep 2025269 AMAQI
16th Sep 20252410 AMAQI
16th Sep 20252711 AMAQI
16th Sep 20253212 PMAQI
16th Sep 2025301 PMAQI
16th Sep 2025342 PMAQI
16th Sep 2025323 PMAQI
16th Sep 2025304 PMAQI
16th Sep 2025325 PMAQI
16th Sep 2025266 PMAQI
16th Sep 2025257 PMAQI
16th Sep 2025268 PMAQI
16th Sep 2025289 PMAQI
16th Sep 20252910 PMAQI
16th Sep 20253111 PMAQI
17th Sep 20253112 AMAQI
17th Sep 2025331 AMAQI
17th Sep 2025322 AMAQI
17th Sep 2025323 AMAQI
17th Sep 2025324 AMAQI
17th Sep 2025325 AMAQI

27°C24/30°C

17th Sep 2025326 AMAQI
17th Sep 2025327 AMAQI
17th Sep 2025328 AMAQI
17th Sep 2025389 AMAQI
17th Sep 20254210 AMAQI
17th Sep 20253411 AMAQI
17th Sep 20253412 PMAQI
17th Sep 2025261 PMAQI
17th Sep 2025202 PMAQI
17th Sep 2025283 PMAQI
17th Sep 2025244 PMAQI
17th Sep 2025285 PMAQI
17th Sep 2025266 PMAQI
17th Sep 2025347 PMAQI
17th Sep 2025328 PMAQI
17th Sep 2025309 PMAQI
17th Sep 20252310 PMAQI
17th Sep 20252511 PMAQI
18th Sep 20252712 AMAQI
18th Sep 2025261 AMAQI
18th Sep 2025322 AMAQI
18th Sep 2025333 AMAQI
18th Sep 2025344 AMAQI
18th Sep 2025335 AMAQI

27°C24/30°C

18th Sep 2025346 AMAQI
18th Sep 2025347 AMAQI
18th Sep 2025348 AMAQI
18th Sep 2025209 AMAQI
18th Sep 20251410 AMAQI
18th Sep 20251411 AMAQI
18th Sep 20251312 PMAQI
18th Sep 2025141 PMAQI
18th Sep 2025142 PMAQI
18th Sep 2025133 PMAQI
18th Sep 2025164 PMAQI
18th Sep 2025155 PMAQI
18th Sep 2025126 PMAQI
18th Sep 2025167 PMAQI
18th Sep 2025198 PMAQI
18th Sep 2025259 PMAQI
18th Sep 20252610 PMAQI
18th Sep 20252811 PMAQI
19th Sep 20252412 AMAQI
19th Sep 2025241 AMAQI
19th Sep 2025282 AMAQI
19th Sep 2025323 AMAQI
19th Sep 2025304 AMAQI
19th Sep 2025295 AMAQI

24°C22/26°C

19th Sep 2025286 AMAQI
19th Sep 2025287 AMAQI
19th Sep 2025288 AMAQI
19th Sep 2025189 AMAQI
19th Sep 20251510 AMAQI
19th Sep 20251811 AMAQI
19th Sep 20252112 PMAQI
19th Sep 2025201 PMAQI
19th Sep 2025182 PMAQI
19th Sep 2025203 PMAQI
19th Sep 2025204 PMAQI
19th Sep 2025215 PMAQI
19th Sep 2025206 PMAQI
19th Sep 2025217 PMAQI
19th Sep 2025238 PMAQI
19th Sep 2025239 PMAQI
19th Sep 20252210 PMAQI
19th Sep 20252111 PMAQI
20th Sep 20252312 AMAQI
20th Sep 2025251 AMAQI
20th Sep 2025282 AMAQI
20th Sep 2025283 AMAQI
20th Sep 2025284 AMAQI
20th Sep 2025275 AMAQI

23°C20/27°C

20th Sep 2025276 AMAQI
20th Sep 2025267 AMAQI
20th Sep 2025278 AMAQI
20th Sep 2025349 AMAQI
20th Sep 20254210 AMAQI
20th Sep 20254411 AMAQI
20th Sep 20254012 PMAQI
20th Sep 2025411 PMAQI
20th Sep 2025422 PMAQI
20th Sep 2025303 PMAQI
20th Sep 2025184 PMAQI
20th Sep 2025185 PMAQI
20th Sep 2025186 PMAQI
20th Sep 2025187 PMAQI
20th Sep 2025228 PMAQI
20th Sep 2025249 PMAQI
20th Sep 20252510 PMAQI
20th Sep 20252411 PMAQI
21st Sep 20252212 AMAQI
21st Sep 2025241 AMAQI
21st Sep 2025272 AMAQI
21st Sep 2025273 AMAQI
21st Sep 2025284 AMAQI
21st Sep 2025295 AMAQI

24°C22/27°C

21st Sep 2025286 AMAQI
21st Sep 2025287 AMAQI
21st Sep 2025288 AMAQI
21st Sep 2025179 AMAQI
21st Sep 20251510 AMAQI
21st Sep 20251611 AMAQI
21st Sep 20251612 PMAQI
21st Sep 2025131 PMAQI
21st Sep 2025122 PMAQI
21st Sep 2025133 PMAQI
21st Sep 2025144 PMAQI
21st Sep 2025155 PMAQI
21st Sep 2025146 PMAQI
21st Sep 2025157 PMAQI
21st Sep 2025178 PMAQI
21st Sep 2025209 PMAQI
21st Sep 20252210 PMAQI
21st Sep 20252011 PMAQI
22nd Sep 20252112 AMAQI
22nd Sep 2025241 AMAQI
22nd Sep 2025272 AMAQI
22nd Sep 2025273 AMAQI
22nd Sep 2025254 AMAQI
22nd Sep 2025235 AMAQI

23°C20/25°C

22nd Sep 2025246 AMAQI
22nd Sep 2025247 AMAQI
22nd Sep 2025248 AMAQI
22nd Sep 2025209 AMAQI
22nd Sep 20251610 AMAQI
22nd Sep 20252011 AMAQI
22nd Sep 20251912 PMAQI
22nd Sep 2025161 PMAQI
22nd Sep 2025172 PMAQI
22nd Sep 2025183 PMAQI
22nd Sep 2025174 PMAQI
22nd Sep 2025185 PMAQI
22nd Sep 2025206 PMAQI
22nd Sep 2025197 PMAQI
22nd Sep 2025228 PMAQI
22nd Sep 2025219 PMAQI
22nd Sep 20252110 PMAQI
22nd Sep 20252211 PMAQI
23rd Sep 20252212 AMAQI
23rd Sep 2025241 AMAQI
23rd Sep 2025242 AMAQI
23rd Sep 2025243 AMAQI
23rd Sep 2025244 AMAQI
23rd Sep 2025225 AMAQI

22°C18/27°C

23rd Sep 2025236 AMAQI
23rd Sep 2025237 AMAQI
23rd Sep 2025238 AMAQI
23rd Sep 2025209 AMAQI
23rd Sep 20251910 AMAQI
23rd Sep 20252011 AMAQI
23rd Sep 20252212 PMAQI
23rd Sep 2025201 PMAQI
23rd Sep 2025222 PMAQI
23rd Sep 2025223 PMAQI
23rd Sep 2025214 PMAQI
23rd Sep 2025205 PMAQI
23rd Sep 2025196 PMAQI
23rd Sep 2025207 PMAQI
23rd Sep 2025208 PMAQI
23rd Sep 2025209 PMAQI
23rd Sep 20252110 PMAQI
23rd Sep 20252211 PMAQI
24th Sep 20252012 AMAQI
24th Sep 2025201 AMAQI
24th Sep 2025232 AMAQI
24th Sep 2025223 AMAQI
24th Sep 2025234 AMAQI
24th Sep 2025235 AMAQI

22°C20/23°C

24th Sep 2025226 AMAQI
24th Sep 2025227 AMAQI
24th Sep 2025228 AMAQI
24th Sep 2025199 AMAQI
24th Sep 20252010 AMAQI
24th Sep 20252111 AMAQI
24th Sep 20252012 PMAQI
24th Sep 2025251 PMAQI
24th Sep 2025322 PMAQI
24th Sep 2025313 PMAQI
24th Sep 2025324 PMAQI
24th Sep 2025325 PMAQI
24th Sep 2025276 PMAQI
24th Sep 2025237 PMAQI
24th Sep 2025208 PMAQI
24th Sep 2025229 PMAQI
24th Sep 20252610 PMAQI
24th Sep 20252311 PMAQI
25th Sep 20252412 AMAQI
25th Sep 2025241 AMAQI
25th Sep 2025232 AMAQI
25th Sep 2025233 AMAQI
25th Sep 2025234 AMAQI
25th Sep 2025225 AMAQI

25°C23/28°C

25th Sep 2025236 AMAQI
25th Sep 2025237 AMAQI
25th Sep 2025238 AMAQI
25th Sep 2025169 AMAQI
25th Sep 20251710 AMAQI
25th Sep 20251611 AMAQI
25th Sep 20251812 PMAQI
25th Sep 2025181 PMAQI
25th Sep 2025232 PMAQI
25th Sep 2025343 PMAQI
25th Sep 2025374 PMAQI
25th Sep 2025385 PMAQI
25th Sep 2025406 PMAQI
25th Sep 2025427 PMAQI
25th Sep 2025458 PMAQI
25th Sep 2025449 PMAQI
25th Sep 20254510 PMAQI
25th Sep 20254511 PMAQI
26th Sep 20254312 AMAQI
26th Sep 2025341 AMAQI
26th Sep 2025342 AMAQI
26th Sep 2025273 AMAQI
26th Sep 2025384 AMAQI
26th Sep 2025295 AMAQI

25°C23/27°C

26th Sep 2025286 AMAQI
26th Sep 2025247 AMAQI
26th Sep 2025378 AMAQI
26th Sep 2025299 AMAQI
26th Sep 20253810 AMAQI
26th Sep 20253511 AMAQI
26th Sep 20253812 PMAQI
26th Sep 2025341 PMAQI
26th Sep 2025292 PMAQI
26th Sep 2025313 PMAQI
26th Sep 2025344 PMAQI
26th Sep 2025375 PMAQI
26th Sep 2025406 PMAQI
26th Sep 2025397 PMAQI
26th Sep 2025368 PMAQI
26th Sep 2025319 PMAQI
26th Sep 20252610 PMAQI
26th Sep 20251711 PMAQI
27th Sep 20251712 AMAQI
27th Sep 2025171 AMAQI
27th Sep 2025172 AMAQI
27th Sep 2025173 AMAQI
27th Sep 2025174 AMAQI
27th Sep 2025175 AMAQI

24°C21/27°C

27th Sep 2025176 AMAQI
27th Sep 2025157 AMAQI
27th Sep 2025168 AMAQI
27th Sep 2025199 AMAQI
27th Sep 20252610 AMAQI
27th Sep 20252311 AMAQI
27th Sep 20252912 PMAQI
27th Sep 2025301 PMAQI
27th Sep 2025202 PMAQI
27th Sep 2025203 PMAQI
27th Sep 2025224 PMAQI
27th Sep 2025225 PMAQI
27th Sep 2025186 PMAQI
27th Sep 2025207 PMAQI
27th Sep 2025198 PMAQI
27th Sep 2025179 PMAQI
27th Sep 20251710 PMAQI
27th Sep 20251711 PMAQI
28th Sep 20251712 AMAQI
28th Sep 2025171 AMAQI
28th Sep 2025142 AMAQI
28th Sep 2025153 AMAQI
28th Sep 2025174 AMAQI
28th Sep 2025175 AMAQI

22°C20/26°C

28th Sep 2025176 AMAQI
28th Sep 2025177 AMAQI
28th Sep 2025178 AMAQI
28th Sep 2025249 AMAQI
28th Sep 20253710 AMAQI
28th Sep 20253911 AMAQI
28th Sep 20253912 PMAQI
28th Sep 2025431 PMAQI
28th Sep 2025482 PMAQI
28th Sep 2025463 PMAQI
28th Sep 2025444 PMAQI
28th Sep 2025445 PMAQI
28th Sep 2025446 PMAQI
28th Sep 2025357 PMAQI
28th Sep 2025338 PMAQI
28th Sep 2025309 PMAQI
28th Sep 20252610 PMAQI
28th Sep 20252411 PMAQI
29th Sep 20252212 AMAQI
29th Sep 2025221 AMAQI
29th Sep 2025212 AMAQI
29th Sep 2025253 AMAQI
29th Sep 2025284 AMAQI
29th Sep 2025265 AMAQI

22°C19/25°C

29th Sep 2025186 AMAQI
29th Sep 2025157 AMAQI
29th Sep 2025128 AMAQI
29th Sep 2025149 AMAQI
29th Sep 20251610 AMAQI
29th Sep 20251811 AMAQI
29th Sep 20252712 PMAQI
29th Sep 2025231 PMAQI
29th Sep 2025212 PMAQI
29th Sep 2025183 PMAQI
29th Sep 2025174 PMAQI
29th Sep 2025125 PMAQI
29th Sep 2025116 PMAQI
29th Sep 2025237 PMAQI
29th Sep 2025248 PMAQI
29th Sep 2025269 PMAQI
29th Sep 20251910 PMAQI
29th Sep 20252211 PMAQI
30th Sep 20252712 AMAQI
30th Sep 2025301 AMAQI
30th Sep 2025292 AMAQI
30th Sep 2025273 AMAQI
30th Sep 2025284 AMAQI
30th Sep 2025315 AMAQI

22°C19/24°C

30th Sep 2025246 AMAQI
30th Sep 2025257 AMAQI
30th Sep 2025248 AMAQI
30th Sep 2025339 AMAQI
30th Sep 20252310 AMAQI
30th Sep 20253311 AMAQI
30th Sep 20253412 PMAQI
30th Sep 2025441 PMAQI
30th Sep 2025392 PMAQI
30th Sep 2025333 PMAQI
30th Sep 2025304 PMAQI
30th Sep 2025275 PMAQI
30th Sep 2025346 PMAQI
30th Sep 2025327 PMAQI
30th Sep 2025288 PMAQI
30th Sep 2025429 PMAQI
30th Sep 20254210 PMAQI
30th Sep 20254311 PMAQI
1st Oct 20253712 AMAQI
1st Oct 2025421 AMAQI
1st Oct 2025402 AMAQI
1st Oct 2025383 AMAQI
1st Oct 2025314 AMAQI
1st Oct 2025335 AMAQI

20°C18/24°C

1st Oct 2025306 AMAQI
1st Oct 2025377 AMAQI
1st Oct 2025368 AMAQI
1st Oct 2025369 AMAQI
1st Oct 20254210 AMAQI
1st Oct 20254311 AMAQI
1st Oct 20254712 PMAQI
1st Oct 2025441 PMAQI
1st Oct 2025402 PMAQI
1st Oct 2025423 PMAQI
1st Oct 2025404 PMAQI
1st Oct 2025425 PMAQI
1st Oct 2025446 PMAQI
1st Oct 2025457 PMAQI
1st Oct 2025288 PMAQI
1st Oct 2025379 PMAQI
1st Oct 20254410 PMAQI
1st Oct 20254211 PMAQI
2nd Oct 20254212 AMAQI
2nd Oct 2025431 AMAQI
2nd Oct 2025522 AMAQI
2nd Oct 2025523 AMAQI
2nd Oct 2025544 AMAQI
2nd Oct 2025405 AMAQI

21°C18/25°C

2nd Oct 2025366 AMAQI
2nd Oct 2025417 AMAQI
2nd Oct 2025478 AMAQI
2nd Oct 2025519 AMAQI
2nd Oct 20255310 AMAQI
2nd Oct 20255411 AMAQI
2nd Oct 20255212 PMAQI
2nd Oct 2025511 PMAQI
2nd Oct 2025542 PMAQI
2nd Oct 2025553 PMAQI
2nd Oct 2025544 PMAQI
2nd Oct 2025555 PMAQI
2nd Oct 2025566 PMAQI
2nd Oct 2025577 PMAQI
2nd Oct 2025598 PMAQI
2nd Oct 2025589 PMAQI
2nd Oct 20255610 PMAQI
2nd Oct 20255511 PMAQI
3rd Oct 20255612 AMAQI
3rd Oct 2025551 AMAQI
3rd Oct 2025552 AMAQI
3rd Oct 2025563 AMAQI
3rd Oct 2025464 AMAQI
3rd Oct 2025465 AMAQI

21°C18/25°C

3rd Oct 2025546 AMAQI
3rd Oct 2025557 AMAQI
3rd Oct 2025558 AMAQI
3rd Oct 2025569 AMAQI
3rd Oct 20255310 AMAQI
3rd Oct 20255311 AMAQI
3rd Oct 20255412 PMAQI
3rd Oct 2025571 PMAQI
3rd Oct 2025602 PMAQI
3rd Oct 2025583 PMAQI
3rd Oct 2025564 PMAQI
3rd Oct 2025565 PMAQI
3rd Oct 2025566 PMAQI
3rd Oct 2025537 PMAQI
3rd Oct 2025448 PMAQI
3rd Oct 2025619 PMAQI
3rd Oct 20255510 PMAQI
3rd Oct 20255111 PMAQI
4th Oct 20255112 AMAQI
4th Oct 2025471 AMAQI
4th Oct 2025522 AMAQI
4th Oct 2025453 AMAQI
4th Oct 2025464 AMAQI
4th Oct 2025485 AMAQI

20°C18/20°C

4th Oct 2025596 AMAQI
4th Oct 2025587 AMAQI
4th Oct 2025578 AMAQI
4th Oct 2025579 AMAQI
4th Oct 20257810 AMAQI
4th Oct 20258211 AMAQI
4th Oct 20258312 PMAQI
4th Oct 2025771 PMAQI
4th Oct 2025762 PMAQI
4th Oct 2025803 PMAQI
4th Oct 2025714 PMAQI
4th Oct 2025685 PMAQI
4th Oct 2025706 PMAQI
4th Oct 2025707 PMAQI
4th Oct 2025628 PMAQI
4th Oct 2025559 PMAQI
4th Oct 20254910 PMAQI
4th Oct 20254911 PMAQI
5th Oct 20255412 AMAQI
5th Oct 2025561 AMAQI
5th Oct 2025562 AMAQI
5th Oct 2025583 AMAQI
5th Oct 2025544 AMAQI
5th Oct 2025485 AMAQI

24°C23/26°C

5th Oct 2025436 AMAQI
6 AM
5th Oct 2025487 AMAQI
5th Oct 2025488 AMAQI
5th Oct 2025429 AMAQI
5th Oct 20254210 AMAQI
5th Oct 20254611 AMAQI
12 PM
6 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
12 PM

33AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
9 AM

28AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 12 PM (Avg. 33), while the lowest AQI was between 9 AM to 9 AM (Avg. 28).
Night time
Avg. Highest Time
2 AM - 4 AM

32AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
12 AM - 1 AM

30AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 4 AM (Avg. 32), while the lowest AQI was between 12 AM to 1 AM (Avg. 30).

2025 Days Vs Air Quality

Hagi, Yamaguchi, Japan

2025

82%

227

18%

49

Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)

Good
227 Days
Moderate
49 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 82%

Health Risk Level:

Low

In 2025, 82% of 278 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

Hagi, Yamaguchi, Japan

AQI levels in 2025

AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
29AQI
2nd January 2025
33AQI
3rd January 2025
32AQI
4th January 2025
31AQI
5th January 2025
28AQI
6th January 2025
42AQI
7th January 2025
31AQI
8th January 2025
34AQI
9th January 2025
29AQI
10th January 2025
28AQI
11th January 2025
28AQI
12th January 2025
30AQI
13th January 2025
38AQI
14th January 2025
42AQI
15th January 2025
36AQI
16th January 2025
32AQI
17th January 2025
32AQI
18th January 2025
30AQI
19th January 2025
39AQI
20th January 2025
36AQI
21st January 2025
43AQI
22nd January 2025
53AQI
23rd January 2025
65AQI
24th January 2025
55AQI
25th January 2025
44AQI
26th January 2025
39AQI
27th January 2025
34AQI
28th January 2025
34AQI
29th January 2025
31AQI
30th January 2025
40AQI
31st January 2025
44AQI
1st February 2025
43AQI
2nd February 2025
34AQI
3rd February 2025
44AQI
4th February 2025
32AQI
5th February 2025
36AQI
6th February 2025
32AQI
7th February 2025
32AQI
8th February 2025
31AQI
9th February 2025
30AQI
10th February 2025
31AQI
11th February 2025
34AQI
12th February 2025
31AQI
13th February 2025
32AQI
14th February 2025
34AQI
15th February 2025
31AQI
16th February 2025
34AQI
17th February 2025
38AQI
18th February 2025
33AQI
19th February 2025
35AQI
20th February 2025
33AQI
21st February 2025
33AQI
22nd February 2025
36AQI
23rd February 2025
34AQI
24th February 2025
37AQI
25th February 2025
35AQI
26th February 2025
46AQI
27th February 2025
46AQI
28th February 2025
52AQI
1st March 2025
54AQI
2nd March 2025
44AQI
3rd March 2025
42AQI
4th March 2025
35AQI
5th March 2025
32AQI
6th March 2025
34AQI
7th March 2025
35AQI
8th March 2025
34AQI
9th March 2025
38AQI
10th March 2025
38AQI
11th March 2025
40AQI
12th March 2025
44AQI
13th March 2025
44AQI
14th March 2025
34AQI
15th March 2025
31AQI
16th March 2025
21AQI
17th March 2025
32AQI
18th March 2025
33AQI
19th March 2025
39AQI
20th March 2025
47AQI
21st March 2025
52AQI
22nd March 2025
63AQI
23rd March 2025
62AQI
24th March 2025
59AQI
25th March 2025
70AQI
26th March 2025
73AQI
27th March 2025
60AQI
28th March 2025
60AQI
29th March 2025
45AQI
30th March 2025
39AQI
31st March 2025
36AQI
1st April 2025
37AQI
2nd April 2025
31AQI
3rd April 2025
25AQI
4th April 2025
29AQI
5th April 2025
33AQI
6th April 2025
40AQI
7th April 2025
34AQI
8th April 2025
33AQI
9th April 2025
53AQI
10th April 2025
49AQI
11th April 2025
55AQI
12th April 2025
50AQI
13th April 2025
45AQI
14th April 2025
42AQI
15th April 2025
31AQI
16th April 2025
47AQI
17th April 2025
43AQI
18th April 2025
51AQI
19th April 2025
51AQI
20th April 2025
37AQI
21st April 2025
35AQI
22nd April 2025
31AQI
23rd April 2025
21AQI
24th April 2025
33AQI
25th April 2025
59AQI
26th April 2025
48AQI
27th April 2025
50AQI
28th April 2025
43AQI
29th April 2025
46AQI
30th April 2025
48AQI
1st May 2025
45AQI
2nd May 2025
41AQI
3rd May 2025
43AQI
4th May 2025
38AQI
5th May 2025
38AQI
6th May 2025
31AQI
7th May 2025
31AQI
8th May 2025
33AQI
9th May 2025
29AQI
10th May 2025
30AQI
11th May 2025
43AQI
12th May 2025
51AQI
13th May 2025
53AQI
14th May 2025
59AQI
15th May 2025
56AQI
16th May 2025
52AQI
17th May 2025
37AQI
18th May 2025
48AQI
19th May 2025
55AQI
20th May 2025
54AQI
21st May 2025
41AQI
22nd May 2025
38AQI
23rd May 2025
43AQI
24th May 2025
30AQI
25th May 2025
29AQI
26th May 2025
27AQI
27th May 2025
36AQI
28th May 2025
36AQI
29th May 2025
37AQI
30th May 2025
40AQI
31st May 2025
35AQI
1st June 2025
44AQI
2nd June 2025
49AQI
3rd June 2025
31AQI
4th June 2025
42AQI
5th June 2025
41AQI
6th June 2025
50AQI
7th June 2025
57AQI
8th June 2025
61AQI
9th June 2025
54AQI
10th June 2025
32AQI
11th June 2025
42AQI
12th June 2025
49AQI
13th June 2025
44AQI
14th June 2025
32AQI
15th June 2025
30AQI
16th June 2025
30AQI
17th June 2025
34AQI
18th June 2025
43AQI
19th June 2025
39AQI
20th June 2025
50AQI
21st June 2025
56AQI
22nd June 2025
69AQI
23rd June 2025
45AQI
24th June 2025
46AQI
25th June 2025
44AQI
26th June 2025
50AQI
27th June 2025
52AQI
28th June 2025
44AQI
29th June 2025
42AQI
30th June 2025
51AQI
1st July 2025
61AQI
2nd July 2025
66AQI
3rd July 2025
68AQI
4th July 2025
73AQI
5th July 2025
66AQI
6th July 2025
53AQI
7th July 2025
52AQI
8th July 2025
58AQI
9th July 2025
65AQI
10th July 2025
70AQI
11th July 2025
62AQI
12th July 2025
54AQI
13th July 2025
45AQI
14th July 2025
40AQI
15th July 2025
50AQI
16th July 2025
56AQI
17th July 2025
42AQI
18th July 2025
36AQI
19th July 2025
33AQI
20th July 2025
31AQI
21st July 2025
29AQI
22nd July 2025
28AQI
23rd July 2025
29AQI
24th July 2025
31AQI
25th July 2025
29AQI
26th July 2025
23AQI
27th July 2025
23AQI
28th July 2025
25AQI
29th July 2025
26AQI
30th July 2025
32AQI
31st July 2025
33AQI
1st August 2025
45AQI
2nd August 2025
44AQI
3rd August 2025
43AQI
4th August 2025
46AQI
5th August 2025
44AQI
6th August 2025
43AQI
7th August 2025
51AQI
8th August 2025
45AQI
9th August 2025
38AQI
10th August 2025
31AQI
11th August 2025
28AQI
12th August 2025
33AQI
13th August 2025
40AQI
14th August 2025
45AQI
15th August 2025
41AQI
16th August 2025
40AQI
17th August 2025
38AQI
18th August 2025
46AQI
19th August 2025
51AQI
20th August 2025
49AQI
21st August 2025
41AQI
22nd August 2025
43AQI
23rd August 2025
45AQI
24th August 2025
40AQI
25th August 2025
43AQI
26th August 2025
42AQI
27th August 2025
46AQI
28th August 2025
43AQI
29th August 2025
49AQI
30th August 2025
45AQI
31st August 2025
45AQI
1st September 2025
40AQI
2nd September 2025
34AQI
3rd September 2025
37AQI
4th September 2025
23AQI
5th September 2025
22AQI
6th September 2025
26AQI
7th September 2025
34AQI
8th September 2025
32AQI
9th September 2025
29AQI
10th September 2025
32AQI
11th September 2025
32AQI
12th September 2025
28AQI
13th September 2025
34AQI
14th September 2025
31AQI
15th September 2025
31AQI
16th September 2025
30AQI
17th September 2025
30AQI
18th September 2025
23AQI
19th September 2025
23AQI
20th September 2025
28AQI
21st September 2025
20AQI
22nd September 2025
21AQI
23rd September 2025
22AQI
24th September 2025
24AQI
25th September 2025
31AQI
26th September 2025
33AQI
27th September 2025
19AQI
28th September 2025
29AQI
29th September 2025
20AQI
30th September 2025
32AQI
1st October 2025
39AQI
2nd October 2025
51AQI
3rd October 2025
54AQI
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
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

37AQI

36AQI

44AQI

41AQI

41AQI

45AQI

45AQI

43AQI

28AQI

48AQI

No. of days

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

202540AQI

28
3
27
1
22
9
25
5
24
7
23
7
18
13
29
2
30
1
2
227
49

Highest AQI recorded in

October

48AQI

Lowest AQI recorded in

September

28AQI

202435AQI

31
27
2
25
6
23
6
1
23
8
24
6
30
1
30
1
27
3
31
28
2
31
330
35
1

Highest AQI recorded in

April

46AQI

Lowest AQI recorded in

July

25AQI

202338AQI

27
4
28
22
9
17
13
25
6
24
6
11
3
31
27
3
29
2
24
5
27
4
292
55

Highest AQI recorded in

April

49AQI

Lowest AQI recorded in

August

29AQI

202239AQI

25
6
18
3
22
9
25
5
20
11
20
10
15
6
1
26
2
27
4
28
2
30
1
257
59

Highest AQI recorded in

May

48AQI

Lowest AQI recorded in

December

30AQI

202142AQI

26
5
21
7
25
4
15
6
19
12
11
19
23
8
25
6
25
5
23
8
20
10
26
5
259
95

Highest AQI recorded in

June

54AQI

Lowest AQI recorded in

January

34AQI

202036AQI

12
1
18
3
13
5
23
7
28
3
10
4
4
1
18
1
28
3
28
2
26
5
204
34
4
1

Highest AQI recorded in

August

63AQI

Lowest AQI recorded in

December

28AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2021(Avg.)
42AQI
Least Polluted Year Recorded
2024(Avg.)
35AQI

Hagi's annual 2025 AQI (40) shows an average percentage change of 6.1% (worsened AQI) compared to previous years: 2020 (36), 2021 (42), 2022 (39), 2023 (38), 2024 (35).