Yumi, Waki, 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
Yumi, Waki, Yamaguchi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
12th Oct 2025
78AQILowest AQI recorded on
3rd Oct 2024
20AQISame Day Analysis (12th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 78 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 12th Oct - 13th Oct 2025
Yumi, Waki, Yamaguchi, Japan
AQI
Day
Night
.
6 AM12th Oct 2025
6 PM
5 AM13th Oct 2025
Day time
Avg. Highest Time
6AM12th Oct
87AQI
Avg. Lowest Time
11AM12th Oct
65AQI
Night time
Avg. Highest Time
7PM12th Oct
87AQI
Avg. Lowest Time
5AM13th Oct
65AQI
In the last 24 hours,
Yumi's AQI reached its highest point of 87 at 6 AM during the Day, while the lowest point, 65, was recorded at 5 AM during the Night between 12th Oct and 13th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Yumi, Waki, Yamaguchi, 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 2025316 AMAQI
13th Sep 2025317 AMAQI
13th Sep 2025318 AMAQI
13th Sep 2025219 AMAQI
13th Sep 20253010 AMAQI
13th Sep 20254011 AMAQI
13th Sep 20252712 PMAQI
13th Sep 2025271 PMAQI
13th Sep 2025252 PMAQI
13th Sep 2025243 PMAQI
13th Sep 2025304 PMAQI
13th Sep 2025275 PMAQI
13th Sep 2025306 PMAQI
13th Sep 2025417 PMAQI
13th Sep 2025398 PMAQI
13th Sep 2025349 PMAQI
13th Sep 20253810 PMAQI
13th Sep 20253711 PMAQI
14th Sep 20253612 AMAQI
14th Sep 2025311 AMAQI
14th Sep 2025322 AMAQI
14th Sep 2025313 AMAQI
14th Sep 2025314 AMAQI
14th Sep 2025325 AMAQI
26°C24/28°C
14th Sep 2025316 AMAQI
14th Sep 2025327 AMAQI
14th Sep 2025318 AMAQI
14th Sep 2025229 AMAQI
14th Sep 20252010 AMAQI
14th Sep 20252111 AMAQI
14th Sep 20252412 PMAQI
14th Sep 2025221 PMAQI
14th Sep 2025252 PMAQI
14th Sep 2025263 PMAQI
14th Sep 2025314 PMAQI
14th Sep 2025305 PMAQI
14th Sep 2025366 PMAQI
14th Sep 2025337 PMAQI
14th Sep 2025328 PMAQI
14th Sep 2025339 PMAQI
14th Sep 20253410 PMAQI
14th Sep 20253411 PMAQI
15th Sep 20253712 AMAQI
15th Sep 2025321 AMAQI
15th Sep 2025322 AMAQI
15th Sep 2025333 AMAQI
15th Sep 2025314 AMAQI
15th Sep 2025305 AMAQI
27°C24/30°C
15th Sep 2025306 AMAQI
15th Sep 2025317 AMAQI
15th Sep 2025318 AMAQI
15th Sep 2025329 AMAQI
15th Sep 20253210 AMAQI
15th Sep 20254211 AMAQI
15th Sep 20254612 PMAQI
15th Sep 2025451 PMAQI
15th Sep 2025462 PMAQI
15th Sep 2025493 PMAQI
15th Sep 2025504 PMAQI
15th Sep 2025385 PMAQI
15th Sep 2025326 PMAQI
15th Sep 2025267 PMAQI
15th Sep 2025308 PMAQI
15th Sep 2025309 PMAQI
15th Sep 20253110 PMAQI
15th Sep 20253011 PMAQI
16th Sep 20253212 AMAQI
16th Sep 2025331 AMAQI
16th Sep 2025322 AMAQI
16th Sep 2025333 AMAQI
16th Sep 2025334 AMAQI
16th Sep 2025345 AMAQI
26°C24/29°C
16th Sep 2025346 AMAQI
16th Sep 2025347 AMAQI
16th Sep 2025338 AMAQI
16th Sep 2025309 AMAQI
16th Sep 20252310 AMAQI
16th Sep 20252611 AMAQI
16th Sep 20254512 PMAQI
16th Sep 2025391 PMAQI
16th Sep 2025382 PMAQI
16th Sep 2025373 PMAQI
16th Sep 2025404 PMAQI
16th Sep 2025345 PMAQI
16th Sep 2025306 PMAQI
16th Sep 2025227 PMAQI
16th Sep 2025298 PMAQI
16th Sep 2025339 PMAQI
16th Sep 20253410 PMAQI
16th Sep 20253611 PMAQI
17th Sep 20254212 AMAQI
17th Sep 2025371 AMAQI
17th Sep 2025322 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025334 AMAQI
17th Sep 2025345 AMAQI
27°C24/30°C
17th Sep 2025326 AMAQI
17th Sep 2025337 AMAQI
17th Sep 2025338 AMAQI
17th Sep 2025429 AMAQI
17th Sep 20254410 AMAQI
17th Sep 20253811 AMAQI
17th Sep 20255012 PMAQI
17th Sep 2025501 PMAQI
17th Sep 2025342 PMAQI
17th Sep 2025313 PMAQI
17th Sep 2025324 PMAQI
17th Sep 2025405 PMAQI
17th Sep 2025436 PMAQI
17th Sep 2025337 PMAQI
17th Sep 2025398 PMAQI
17th Sep 2025389 PMAQI
17th Sep 20253410 PMAQI
17th Sep 20253111 PMAQI
18th Sep 20253112 AMAQI
18th Sep 2025311 AMAQI
18th Sep 2025342 AMAQI
18th Sep 2025343 AMAQI
18th Sep 2025354 AMAQI
18th Sep 2025385 AMAQI
27°C24/30°C
18th Sep 2025386 AMAQI
18th Sep 2025387 AMAQI
18th Sep 2025378 AMAQI
18th Sep 2025189 AMAQI
18th Sep 20251210 AMAQI
18th Sep 20251211 AMAQI
18th Sep 20252312 PMAQI
18th Sep 2025191 PMAQI
18th Sep 2025132 PMAQI
18th Sep 2025243 PMAQI
18th Sep 2025224 PMAQI
18th Sep 2025135 PMAQI
18th Sep 2025136 PMAQI
18th Sep 2025147 PMAQI
18th Sep 2025168 PMAQI
18th Sep 2025239 PMAQI
18th Sep 20252310 PMAQI
18th Sep 20252411 PMAQI
19th Sep 20252412 AMAQI
19th Sep 2025271 AMAQI
19th Sep 2025342 AMAQI
19th Sep 2025343 AMAQI
19th Sep 2025334 AMAQI
19th Sep 2025305 AMAQI
25°C23/28°C
19th Sep 2025316 AMAQI
19th Sep 2025307 AMAQI
19th Sep 2025318 AMAQI
19th Sep 2025179 AMAQI
19th Sep 20251310 AMAQI
19th Sep 20251311 AMAQI
19th Sep 20251412 PMAQI
19th Sep 2025151 PMAQI
19th Sep 2025192 PMAQI
19th Sep 2025203 PMAQI
19th Sep 2025224 PMAQI
19th Sep 2025195 PMAQI
19th Sep 2025206 PMAQI
19th Sep 2025227 PMAQI
19th Sep 2025248 PMAQI
19th Sep 2025249 PMAQI
19th Sep 20252410 PMAQI
19th Sep 20252311 PMAQI
20th Sep 20252412 AMAQI
20th Sep 2025311 AMAQI
20th Sep 2025302 AMAQI
20th Sep 2025303 AMAQI
20th Sep 2025284 AMAQI
20th Sep 2025275 AMAQI
23°C20/27°C
20th Sep 2025286 AMAQI
20th Sep 2025287 AMAQI
20th Sep 2025288 AMAQI
20th Sep 2025249 AMAQI
20th Sep 20252610 AMAQI
20th Sep 20252811 AMAQI
20th Sep 20253412 PMAQI
20th Sep 2025401 PMAQI
20th Sep 2025352 PMAQI
20th Sep 2025303 PMAQI
20th Sep 2025234 PMAQI
20th Sep 2025245 PMAQI
20th Sep 2025266 PMAQI
20th Sep 2025247 PMAQI
20th Sep 2025328 PMAQI
20th Sep 2025349 PMAQI
20th Sep 20253610 PMAQI
20th Sep 20252911 PMAQI
21st Sep 20252412 AMAQI
21st Sep 2025261 AMAQI
21st Sep 2025282 AMAQI
21st Sep 2025283 AMAQI
21st Sep 2025284 AMAQI
21st Sep 2025305 AMAQI
24°C23/26°C
21st Sep 2025296 AMAQI
21st Sep 2025297 AMAQI
21st Sep 2025288 AMAQI
21st Sep 2025189 AMAQI
21st Sep 20251210 AMAQI
21st Sep 20251411 AMAQI
21st Sep 20251612 PMAQI
21st Sep 2025131 PMAQI
21st Sep 2025132 PMAQI
21st Sep 2025143 PMAQI
21st Sep 2025144 PMAQI
21st Sep 2025145 PMAQI
21st Sep 2025136 PMAQI
21st Sep 2025147 PMAQI
21st Sep 2025178 PMAQI
21st Sep 2025219 PMAQI
21st Sep 20252010 PMAQI
21st Sep 20252011 PMAQI
22nd Sep 20252012 AMAQI
22nd Sep 2025261 AMAQI
22nd Sep 2025282 AMAQI
22nd Sep 2025283 AMAQI
22nd Sep 2025274 AMAQI
22nd Sep 2025255 AMAQI
24°C20/27°C
22nd Sep 2025256 AMAQI
22nd Sep 2025247 AMAQI
22nd Sep 2025248 AMAQI
22nd Sep 2025179 AMAQI
22nd Sep 20251410 AMAQI
22nd Sep 20251411 AMAQI
22nd Sep 20251512 PMAQI
22nd Sep 2025151 PMAQI
22nd Sep 2025162 PMAQI
22nd Sep 2025183 PMAQI
22nd Sep 2025194 PMAQI
22nd Sep 2025185 PMAQI
22nd Sep 2025186 PMAQI
22nd Sep 2025207 PMAQI
22nd Sep 2025228 PMAQI
22nd Sep 2025229 PMAQI
22nd Sep 20252010 PMAQI
22nd Sep 20252211 PMAQI
23rd Sep 20252512 AMAQI
23rd Sep 2025271 AMAQI
23rd Sep 2025252 AMAQI
23rd Sep 2025243 AMAQI
23rd Sep 2025244 AMAQI
23rd Sep 2025235 AMAQI
22°C19/25°C
23rd Sep 2025246 AMAQI
23rd Sep 2025247 AMAQI
23rd Sep 2025248 AMAQI
23rd Sep 2025239 AMAQI
23rd Sep 20252710 AMAQI
23rd Sep 20252711 AMAQI
23rd Sep 20252912 PMAQI
23rd Sep 2025261 PMAQI
23rd Sep 2025212 PMAQI
23rd Sep 2025213 PMAQI
23rd Sep 2025204 PMAQI
23rd Sep 2025165 PMAQI
23rd Sep 2025186 PMAQI
23rd Sep 2025167 PMAQI
23rd Sep 2025228 PMAQI
23rd Sep 2025189 PMAQI
23rd Sep 20252010 PMAQI
23rd Sep 20252111 PMAQI
24th Sep 20252112 AMAQI
24th Sep 2025241 AMAQI
24th Sep 2025242 AMAQI
24th Sep 2025243 AMAQI
24th Sep 2025244 AMAQI
24th Sep 2025245 AMAQI
22°C20/22°C
24th Sep 2025246 AMAQI
24th Sep 2025247 AMAQI
24th Sep 2025248 AMAQI
24th Sep 2025189 AMAQI
24th Sep 20251710 AMAQI
24th Sep 20251511 AMAQI
24th Sep 20251712 PMAQI
24th Sep 2025211 PMAQI
24th Sep 2025272 PMAQI
24th Sep 2025313 PMAQI
24th Sep 2025344 PMAQI
24th Sep 2025325 PMAQI
24th Sep 2025376 PMAQI
24th Sep 2025417 PMAQI
24th Sep 2025308 PMAQI
24th Sep 2025289 PMAQI
24th Sep 20252910 PMAQI
24th Sep 20252711 PMAQI
25th Sep 20252512 AMAQI
25th Sep 2025261 AMAQI
25th Sep 2025242 AMAQI
25th Sep 2025243 AMAQI
25th Sep 2025244 AMAQI
25th Sep 2025245 AMAQI
23°C22/26°C
25th Sep 2025246 AMAQI
25th Sep 2025247 AMAQI
25th Sep 2025248 AMAQI
25th Sep 2025149 AMAQI
25th Sep 20251310 AMAQI
25th Sep 20251011 AMAQI
25th Sep 20251212 PMAQI
25th Sep 2025141 PMAQI
25th Sep 2025222 PMAQI
25th Sep 2025253 PMAQI
25th Sep 2025244 PMAQI
25th Sep 2025225 PMAQI
25th Sep 2025216 PMAQI
25th Sep 2025207 PMAQI
25th Sep 2025198 PMAQI
25th Sep 2025179 PMAQI
25th Sep 20251410 PMAQI
25th Sep 20251411 PMAQI
26th Sep 20251412 AMAQI
26th Sep 2025161 AMAQI
26th Sep 2025162 AMAQI
26th Sep 2025163 AMAQI
26th Sep 2025144 AMAQI
26th Sep 2025145 AMAQI
24°C23/26°C
26th Sep 2025146 AMAQI
26th Sep 2025147 AMAQI
26th Sep 2025158 AMAQI
26th Sep 2025149 AMAQI
26th Sep 20252010 AMAQI
26th Sep 20252211 AMAQI
26th Sep 20252312 PMAQI
26th Sep 2025261 PMAQI
26th Sep 2025292 PMAQI
26th Sep 2025443 PMAQI
26th Sep 2025514 PMAQI
26th Sep 2025485 PMAQI
26th Sep 2025376 PMAQI
26th Sep 2025367 PMAQI
26th Sep 2025408 PMAQI
26th Sep 2025279 PMAQI
26th Sep 20251910 PMAQI
26th Sep 20251511 PMAQI
27th Sep 20251512 AMAQI
27th Sep 2025141 AMAQI
27th Sep 2025152 AMAQI
27th Sep 2025143 AMAQI
27th Sep 2025124 AMAQI
27th Sep 2025145 AMAQI
24°C22/28°C
27th Sep 2025166 AMAQI
27th Sep 2025177 AMAQI
27th Sep 2025178 AMAQI
27th Sep 2025169 AMAQI
27th Sep 20251810 AMAQI
27th Sep 20252611 AMAQI
27th Sep 20253112 PMAQI
27th Sep 2025291 PMAQI
27th Sep 2025172 PMAQI
27th Sep 2025183 PMAQI
27th Sep 2025204 PMAQI
27th Sep 2025195 PMAQI
27th Sep 2025226 PMAQI
27th Sep 2025227 PMAQI
27th Sep 2025198 PMAQI
27th Sep 2025189 PMAQI
27th Sep 20252210 PMAQI
27th Sep 20252211 PMAQI
28th Sep 20251812 AMAQI
28th Sep 2025221 AMAQI
28th Sep 2025222 AMAQI
28th Sep 2025223 AMAQI
28th Sep 2025224 AMAQI
28th Sep 2025195 AMAQI
23°C20/25°C
28th Sep 2025176 AMAQI
28th Sep 2025177 AMAQI
28th Sep 2025178 AMAQI
28th Sep 2025179 AMAQI
28th Sep 20251710 AMAQI
28th Sep 20251711 AMAQI
28th Sep 20251712 PMAQI
28th Sep 2025171 PMAQI
28th Sep 2025172 PMAQI
28th Sep 2025203 PMAQI
28th Sep 2025224 PMAQI
28th Sep 2025205 PMAQI
28th Sep 2025176 PMAQI
28th Sep 2025197 PMAQI
28th Sep 2025188 PMAQI
28th Sep 2025189 PMAQI
28th Sep 20251810 PMAQI
28th Sep 20251711 PMAQI
29th Sep 20251812 AMAQI
29th Sep 2025221 AMAQI
29th Sep 2025202 AMAQI
29th Sep 2025163 AMAQI
29th Sep 2025134 AMAQI
29th Sep 2025115 AMAQI
21°C19/22°C
29th Sep 202596 AMAQI
29th Sep 202567 AMAQI
29th Sep 202568 AMAQI
29th Sep 2025119 AMAQI
29th Sep 2025610 AMAQI
29th Sep 2025711 AMAQI
29th Sep 2025712 PMAQI
29th Sep 202581 PMAQI
29th Sep 202592 PMAQI
29th Sep 2025103 PMAQI
29th Sep 2025124 PMAQI
29th Sep 2025115 PMAQI
29th Sep 2025146 PMAQI
29th Sep 2025157 PMAQI
29th Sep 2025108 PMAQI
29th Sep 2025209 PMAQI
29th Sep 20253710 PMAQI
29th Sep 20252811 PMAQI
30th Sep 20252712 AMAQI
30th Sep 2025251 AMAQI
30th Sep 2025272 AMAQI
30th Sep 2025223 AMAQI
30th Sep 2025224 AMAQI
30th Sep 2025185 AMAQI
23°C19/27°C
30th Sep 2025176 AMAQI
30th Sep 2025187 AMAQI
30th Sep 2025248 AMAQI
30th Sep 2025149 AMAQI
30th Sep 2025810 AMAQI
30th Sep 20253011 AMAQI
30th Sep 20253212 PMAQI
30th Sep 2025371 PMAQI
30th Sep 2025322 PMAQI
30th Sep 2025263 PMAQI
30th Sep 2025344 PMAQI
30th Sep 2025285 PMAQI
30th Sep 2025306 PMAQI
30th Sep 2025287 PMAQI
30th Sep 2025328 PMAQI
30th Sep 2025399 PMAQI
30th Sep 20253810 PMAQI
30th Sep 20253411 PMAQI
1st Oct 20253712 AMAQI
1st Oct 2025351 AMAQI
1st Oct 2025332 AMAQI
1st Oct 2025353 AMAQI
1st Oct 2025364 AMAQI
1st Oct 2025245 AMAQI
21°C17/24°C
1st Oct 2025176 AMAQI
1st Oct 2025147 AMAQI
1st Oct 2025138 AMAQI
1st Oct 2025139 AMAQI
1st Oct 20251510 AMAQI
1st Oct 20252111 AMAQI
1st Oct 20252412 PMAQI
1st Oct 2025321 PMAQI
1st Oct 2025542 PMAQI
1st Oct 2025563 PMAQI
1st Oct 2025574 PMAQI
1st Oct 2025575 PMAQI
1st Oct 2025356 PMAQI
1st Oct 2025237 PMAQI
1st Oct 2025538 PMAQI
1st Oct 2025429 PMAQI
1st Oct 20254410 PMAQI
1st Oct 20254411 PMAQI
2nd Oct 20253312 AMAQI
2nd Oct 2025481 AMAQI
2nd Oct 2025532 AMAQI
2nd Oct 2025563 AMAQI
2nd Oct 2025554 AMAQI
2nd Oct 2025545 AMAQI
21°C18/25°C
2nd Oct 2025536 AMAQI
2nd Oct 2025527 AMAQI
2nd Oct 2025518 AMAQI
2nd Oct 2025519 AMAQI
2nd Oct 20254810 AMAQI
2nd Oct 20254711 AMAQI
2nd Oct 20254912 PMAQI
2nd Oct 2025501 PMAQI
2nd Oct 2025452 PMAQI
2nd Oct 2025473 PMAQI
2nd Oct 2025434 PMAQI
2nd Oct 2025465 PMAQI
2nd Oct 2025496 PMAQI
2nd Oct 2025447 PMAQI
2nd Oct 2025468 PMAQI
2nd Oct 2025469 PMAQI
2nd Oct 20255010 PMAQI
2nd Oct 20255111 PMAQI
3rd Oct 20254812 AMAQI
3rd Oct 2025491 AMAQI
3rd Oct 2025522 AMAQI
3rd Oct 2025523 AMAQI
3rd Oct 2025534 AMAQI
3rd Oct 2025545 AMAQI
21°C17/25°C
3rd Oct 2025546 AMAQI
3rd Oct 2025537 AMAQI
3rd Oct 2025538 AMAQI
3rd Oct 2025529 AMAQI
3rd Oct 20255110 AMAQI
3rd Oct 20255011 AMAQI
3rd Oct 20255212 PMAQI
3rd Oct 2025491 PMAQI
3rd Oct 2025472 PMAQI
3rd Oct 2025493 PMAQI
3rd Oct 2025504 PMAQI
3rd Oct 2025495 PMAQI
3rd Oct 2025546 PMAQI
3rd Oct 2025557 PMAQI
3rd Oct 2025488 PMAQI
3rd Oct 2025479 PMAQI
3rd Oct 20255610 PMAQI
3rd Oct 20255611 PMAQI
4th Oct 20255512 AMAQI
4th Oct 2025601 AMAQI
4th Oct 2025612 AMAQI
4th Oct 2025583 AMAQI
4th Oct 2025544 AMAQI
4th Oct 2025615 AMAQI
20°C19/20°C
4th Oct 2025626 AMAQI
4th Oct 2025627 AMAQI
4th Oct 2025598 AMAQI
4th Oct 2025589 AMAQI
4th Oct 20255810 AMAQI
4th Oct 20255611 AMAQI
4th Oct 20255312 PMAQI
4th Oct 2025511 PMAQI
4th Oct 2025542 PMAQI
4th Oct 2025533 PMAQI
4th Oct 2025534 PMAQI
4th Oct 2025585 PMAQI
4th Oct 2025576 PMAQI
4th Oct 2025567 PMAQI
4th Oct 2025678 PMAQI
4th Oct 2025699 PMAQI
4th Oct 20256910 PMAQI
4th Oct 20257011 PMAQI
5th Oct 20256712 AMAQI
5th Oct 2025601 AMAQI
5th Oct 2025562 AMAQI
5th Oct 2025553 AMAQI
5th Oct 2025584 AMAQI
5th Oct 2025605 AMAQI
23°C22/26°C
5th Oct 2025606 AMAQI
5th Oct 2025577 AMAQI
5th Oct 2025548 AMAQI
5th Oct 2025559 AMAQI
5th Oct 20255310 AMAQI
5th Oct 20255011 AMAQI
5th Oct 20255012 PMAQI
5th Oct 2025491 PMAQI
5th Oct 2025592 PMAQI
5th Oct 2025563 PMAQI
5th Oct 2025564 PMAQI
5th Oct 2025575 PMAQI
5th Oct 2025556 PMAQI
5th Oct 2025637 PMAQI
5th Oct 2025648 PMAQI
5th Oct 2025649 PMAQI
5th Oct 20255310 PMAQI
5th Oct 20255611 PMAQI
6th Oct 20255712 AMAQI
6th Oct 2025631 AMAQI
6th Oct 2025632 AMAQI
6th Oct 2025613 AMAQI
6th Oct 2025584 AMAQI
6th Oct 2025595 AMAQI
24°C21/27°C
6th Oct 2025506 AMAQI
6th Oct 2025527 AMAQI
6th Oct 2025518 AMAQI
6th Oct 2025549 AMAQI
6th Oct 20253910 AMAQI
6th Oct 20254711 AMAQI
6th Oct 20255312 PMAQI
6th Oct 2025571 PMAQI
6th Oct 2025612 PMAQI
6th Oct 2025603 PMAQI
6th Oct 2025604 PMAQI
6th Oct 2025555 PMAQI
6th Oct 2025556 PMAQI
6th Oct 2025667 PMAQI
6th Oct 2025688 PMAQI
6th Oct 2025709 PMAQI
6th Oct 20257110 PMAQI
6th Oct 20256211 PMAQI
7th Oct 20255912 AMAQI
7th Oct 2025641 AMAQI
7th Oct 2025662 AMAQI
23°C20/26°C
7th Oct 2025548 PMAQI
7th Oct 2025369 PMAQI
7th Oct 20256710 PMAQI
7th Oct 20257311 PMAQI
8th Oct 20257412 AMAQI
8th Oct 2025731 AMAQI
8th Oct 2025722 AMAQI
8th Oct 2025633 AMAQI
8th Oct 2025614 AMAQI
8th Oct 2025625 AMAQI
23°C20/25°C
8th Oct 2025616 AMAQI
8th Oct 2025607 AMAQI
8th Oct 2025668 AMAQI
8th Oct 2025689 AMAQI
8th Oct 20256910 AMAQI
8th Oct 20256411 AMAQI
8th Oct 20256112 PMAQI
8th Oct 2025641 PMAQI
8th Oct 2025662 PMAQI
8th Oct 2025673 PMAQI
8th Oct 2025754 PMAQI
8th Oct 2025725 PMAQI
8th Oct 2025756 PMAQI
8th Oct 2025777 PMAQI
8th Oct 2025808 PMAQI
8th Oct 2025829 PMAQI
8th Oct 20257810 PMAQI
8th Oct 20255611 PMAQI
9th Oct 20255112 AMAQI
9th Oct 2025461 AMAQI
9th Oct 2025442 AMAQI
9th Oct 2025493 AMAQI
9th Oct 2025484 AMAQI
9th Oct 2025445 AMAQI
23°C20/27°C
9th Oct 2025456 AMAQI
9th Oct 2025447 AMAQI
9th Oct 2025558 AMAQI
9th Oct 2025589 AMAQI
9th Oct 20255210 AMAQI
9th Oct 20255211 AMAQI
9th Oct 20255012 PMAQI
9th Oct 2025491 PMAQI
9th Oct 2025552 PMAQI
9th Oct 2025593 PMAQI
9th Oct 2025594 PMAQI
9th Oct 2025585 PMAQI
9th Oct 2025556 PMAQI
9th Oct 2025567 PMAQI
9th Oct 2025558 PMAQI
9th Oct 2025469 PMAQI
9th Oct 20253110 PMAQI
9th Oct 20254511 PMAQI
10th Oct 20254612 AMAQI
10th Oct 2025461 AMAQI
10th Oct 2025492 AMAQI
10th Oct 2025543 AMAQI
10th Oct 2025554 AMAQI
10th Oct 2025575 AMAQI
21°C17/25°C
10th Oct 2025546 AMAQI
10th Oct 2025437 AMAQI
10th Oct 2025508 AMAQI
10th Oct 2025559 AMAQI
10th Oct 20254910 AMAQI
10th Oct 20255311 AMAQI
10th Oct 20254612 PMAQI
10th Oct 2025461 PMAQI
10th Oct 2025542 PMAQI
10th Oct 2025553 PMAQI
10th Oct 2025544 PMAQI
10th Oct 2025565 PMAQI
10th Oct 2025576 PMAQI
10th Oct 2025587 PMAQI
10th Oct 2025688 PMAQI
10th Oct 2025759 PMAQI
10th Oct 20257710 PMAQI
10th Oct 20255811 PMAQI
11th Oct 20256612 AMAQI
11th Oct 2025711 AMAQI
11th Oct 2025702 AMAQI
11th Oct 2025643 AMAQI
11th Oct 2025614 AMAQI
11th Oct 2025585 AMAQI
20°C17/24°C
11th Oct 2025596 AMAQI
11th Oct 2025587 AMAQI
11th Oct 2025568 AMAQI
11th Oct 2025559 AMAQI
11th Oct 20255810 AMAQI
11th Oct 20255611 AMAQI
11th Oct 20256012 PMAQI
11th Oct 2025651 PMAQI
11th Oct 2025682 PMAQI
11th Oct 2025713 PMAQI
11th Oct 2025714 PMAQI
11th Oct 2025715 PMAQI
11th Oct 2025696 PMAQI
11th Oct 2025707 PMAQI
11th Oct 2025678 PMAQI
11th Oct 2025689 PMAQI
11th Oct 20257210 PMAQI
11th Oct 20257011 PMAQI
12th Oct 20257312 AMAQI
12th Oct 2025761 AMAQI
12th Oct 2025772 AMAQI
12th Oct 2025803 AMAQI
12th Oct 2025744 AMAQI
12th Oct 2025825 AMAQI
22°C18/25°C
12th Oct 2025876 AMAQI
12th Oct 2025817 AMAQI
12th Oct 2025828 AMAQI
12th Oct 2025799 AMAQI
12th Oct 20257010 AMAQI
12th Oct 20256511 AMAQI
12th Oct 20256812 PMAQI
12th Oct 2025761 PMAQI
12th Oct 2025792 PMAQI
12th Oct 2025843 PMAQI
12th Oct 2025864 PMAQI
12th Oct 2025785 PMAQI
12th Oct 2025816 PMAQI
12th Oct 2025877 PMAQI
12th Oct 2025818 PMAQI
12th Oct 2025879 PMAQI
12th Oct 20258710 PMAQI
12th Oct 20257711 PMAQI
13th Oct 20257412 AMAQI
13th Oct 2025671 AMAQI
13th Oct 2025672 AMAQI
13th Oct 2025663 AMAQI
13th Oct 2025684 AMAQI
13th Oct 2025655 AMAQI
24°C21/27°C
13th Oct 2025656 AMAQI
6 AM13th Oct 2025637 AMAQI
13th Oct 2025638 AMAQI
13th Oct 2025599 AMAQI
13th Oct 20255810 AMAQI
13th Oct 20254711 AMAQI
13th Oct 20254212 PMAQI
12 PM13th Oct 2025511 PMAQI
13th Oct 2025542 PMAQI
13th Oct 2025543 PMAQI
13th Oct 2025464 PMAQI
13th Oct 2025365 PMAQI
13th Oct 2025546 PMAQI
6 PM13th Oct 2025597 PMAQI
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
12 PM - 4 PM
38AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
10 AM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 4 PM (Avg. 38), while the lowest AQI was between 10 AM to 10 AM (Avg. 32).
Night time
Avg. Highest Time
10 PM
42AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 7 PM
39AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 42), while the lowest AQI was between 12 AM to 7 PM (Avg. 39).
2025 Days Vs Air Quality
Yumi, Waki, Yamaguchi, Japan
2025
80%
229
20%
56
Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)
Good
229 DaysModerate
56 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2025, 80% 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
Yumi, Waki, 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
25AQI
25AQI
2nd January 2025
34AQI
34AQI
3rd January 2025
29AQI
29AQI
4th January 2025
28AQI
28AQI
5th January 2025
26AQI
26AQI
6th January 2025
31AQI
31AQI
7th January 2025
29AQI
29AQI
8th January 2025
28AQI
28AQI
9th January 2025
28AQI
28AQI
10th January 2025
27AQI
27AQI
11th January 2025
28AQI
28AQI
12th January 2025
28AQI
28AQI
13th January 2025
34AQI
34AQI
14th January 2025
32AQI
32AQI
15th January 2025
35AQI
35AQI
16th January 2025
30AQI
30AQI
17th January 2025
28AQI
28AQI
18th January 2025
25AQI
25AQI
19th January 2025
37AQI
37AQI
20th January 2025
30AQI
30AQI
21st January 2025
39AQI
39AQI
22nd January 2025
55AQI
55AQI
23rd January 2025
64AQI
64AQI
24th January 2025
52AQI
52AQI
25th January 2025
44AQI
44AQI
26th January 2025
39AQI
39AQI
27th January 2025
33AQI
33AQI
28th January 2025
33AQI
33AQI
29th January 2025
30AQI
30AQI
30th January 2025
42AQI
42AQI
31st January 2025
36AQI
36AQI
1st February 2025
40AQI
40AQI
2nd February 2025
31AQI
31AQI
3rd February 2025
38AQI
38AQI
4th February 2025
31AQI
31AQI
5th February 2025
33AQI
33AQI
6th February 2025
29AQI
29AQI
7th February 2025
28AQI
28AQI
8th February 2025
30AQI
30AQI
9th February 2025
28AQI
28AQI
10th February 2025
29AQI
29AQI
11th February 2025
32AQI
32AQI
12th February 2025
26AQI
26AQI
13th February 2025
30AQI
30AQI
14th February 2025
36AQI
36AQI
15th February 2025
31AQI
31AQI
16th February 2025
38AQI
38AQI
17th February 2025
39AQI
39AQI
18th February 2025
33AQI
33AQI
19th February 2025
34AQI
34AQI
20th February 2025
30AQI
30AQI
21st February 2025
33AQI
33AQI
22nd February 2025
35AQI
35AQI
23rd February 2025
33AQI
33AQI
24th February 2025
35AQI
35AQI
25th February 2025
36AQI
36AQI
26th February 2025
38AQI
38AQI
27th February 2025
45AQI
45AQI
28th February 2025
48AQI
48AQI
1st March 2025
52AQI
52AQI
2nd March 2025
75AQI
75AQI
3rd March 2025
43AQI
43AQI
4th March 2025
41AQI
41AQI
5th March 2025
28AQI
28AQI
6th March 2025
37AQI
37AQI
7th March 2025
32AQI
32AQI
8th March 2025
41AQI
41AQI
9th March 2025
42AQI
42AQI
10th March 2025
42AQI
42AQI
11th March 2025
43AQI
43AQI
12th March 2025
44AQI
44AQI
13th March 2025
52AQI
52AQI
14th March 2025
30AQI
30AQI
15th March 2025
30AQI
30AQI
16th March 2025
20AQI
20AQI
17th March 2025
33AQI
33AQI
18th March 2025
23AQI
23AQI
19th March 2025
38AQI
38AQI
20th March 2025
43AQI
43AQI
21st March 2025
42AQI
42AQI
22nd March 2025
63AQI
63AQI
23rd March 2025
55AQI
55AQI
24th March 2025
50AQI
50AQI
25th March 2025
63AQI
63AQI
26th March 2025
72AQI
72AQI
27th March 2025
62AQI
62AQI
28th March 2025
51AQI
51AQI
29th March 2025
44AQI
44AQI
30th March 2025
39AQI
39AQI
31st March 2025
38AQI
38AQI
1st April 2025
41AQI
41AQI
2nd April 2025
33AQI
33AQI
3rd April 2025
26AQI
26AQI
4th April 2025
31AQI
31AQI
5th April 2025
31AQI
31AQI
6th April 2025
32AQI
32AQI
7th April 2025
28AQI
28AQI
8th April 2025
23AQI
23AQI
9th April 2025
38AQI
38AQI
10th April 2025
39AQI
39AQI
11th April 2025
35AQI
35AQI
12th April 2025
39AQI
39AQI
13th April 2025
33AQI
33AQI
14th April 2025
32AQI
32AQI
15th April 2025
24AQI
24AQI
16th April 2025
33AQI
33AQI
17th April 2025
29AQI
29AQI
18th April 2025
32AQI
32AQI
19th April 2025
33AQI
33AQI
20th April 2025
27AQI
27AQI
21st April 2025
29AQI
29AQI
22nd April 2025
29AQI
29AQI
23rd April 2025
18AQI
18AQI
24th April 2025
27AQI
27AQI
25th April 2025
57AQI
57AQI
26th April 2025
44AQI
44AQI
27th April 2025
50AQI
50AQI
28th April 2025
41AQI
41AQI
29th April 2025
37AQI
37AQI
30th April 2025
44AQI
44AQI
1st May 2025
52AQI
52AQI
2nd May 2025
40AQI
40AQI
3rd May 2025
48AQI
48AQI
4th May 2025
36AQI
36AQI
5th May 2025
38AQI
38AQI
6th May 2025
27AQI
27AQI
7th May 2025
28AQI
28AQI
8th May 2025
30AQI
30AQI
9th May 2025
35AQI
35AQI
10th May 2025
32AQI
32AQI
11th May 2025
42AQI
42AQI
12th May 2025
51AQI
51AQI
13th May 2025
52AQI
52AQI
14th May 2025
60AQI
60AQI
15th May 2025
56AQI
56AQI
16th May 2025
50AQI
50AQI
17th May 2025
42AQI
42AQI
18th May 2025
48AQI
48AQI
19th May 2025
59AQI
59AQI
20th May 2025
57AQI
57AQI
21st May 2025
44AQI
44AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
39AQI
39AQI
24th May 2025
33AQI
33AQI
25th May 2025
28AQI
28AQI
26th May 2025
29AQI
29AQI
27th May 2025
42AQI
42AQI
28th May 2025
36AQI
36AQI
29th May 2025
50AQI
50AQI
30th May 2025
44AQI
44AQI
31st May 2025
42AQI
42AQI
1st June 2025
49AQI
49AQI
2nd June 2025
54AQI
54AQI
3rd June 2025
30AQI
30AQI
4th June 2025
43AQI
43AQI
5th June 2025
47AQI
47AQI
6th June 2025
48AQI
48AQI
7th June 2025
54AQI
54AQI
8th June 2025
65AQI
65AQI
9th June 2025
67AQI
67AQI
10th June 2025
35AQI
35AQI
11th June 2025
38AQI
38AQI
12th June 2025
53AQI
53AQI
13th June 2025
44AQI
44AQI
14th June 2025
40AQI
40AQI
15th June 2025
29AQI
29AQI
16th June 2025
29AQI
29AQI
17th June 2025
28AQI
28AQI
18th June 2025
39AQI
39AQI
19th June 2025
49AQI
49AQI
20th June 2025
53AQI
53AQI
21st June 2025
53AQI
53AQI
22nd June 2025
62AQI
62AQI
23rd June 2025
45AQI
45AQI
24th June 2025
43AQI
43AQI
25th June 2025
41AQI
41AQI
26th June 2025
51AQI
51AQI
27th June 2025
54AQI
54AQI
28th June 2025
50AQI
50AQI
29th June 2025
47AQI
47AQI
30th June 2025
56AQI
56AQI
1st July 2025
58AQI
58AQI
2nd July 2025
78AQI
78AQI
3rd July 2025
80AQI
80AQI
4th July 2025
88AQI
88AQI
5th July 2025
85AQI
85AQI
6th July 2025
67AQI
67AQI
7th July 2025
62AQI
62AQI
8th July 2025
68AQI
68AQI
9th July 2025
63AQI
63AQI
10th July 2025
81AQI
81AQI
11th July 2025
60AQI
60AQI
12th July 2025
56AQI
56AQI
13th July 2025
54AQI
54AQI
14th July 2025
41AQI
41AQI
15th July 2025
49AQI
49AQI
16th July 2025
51AQI
51AQI
17th July 2025
50AQI
50AQI
18th July 2025
36AQI
36AQI
19th July 2025
34AQI
34AQI
20th July 2025
32AQI
32AQI
21st July 2025
28AQI
28AQI
22nd July 2025
27AQI
27AQI
23rd July 2025
29AQI
29AQI
24th July 2025
39AQI
39AQI
25th July 2025
28AQI
28AQI
26th July 2025
24AQI
24AQI
27th July 2025
23AQI
23AQI
28th July 2025
32AQI
32AQI
29th July 2025
28AQI
28AQI
30th July 2025
36AQI
36AQI
31st July 2025
40AQI
40AQI
1st August 2025
46AQI
46AQI
2nd August 2025
43AQI
43AQI
3rd August 2025
41AQI
41AQI
4th August 2025
51AQI
51AQI
5th August 2025
42AQI
42AQI
6th August 2025
45AQI
45AQI
7th August 2025
50AQI
50AQI
8th August 2025
46AQI
46AQI
9th August 2025
35AQI
35AQI
10th August 2025
31AQI
31AQI
11th August 2025
29AQI
29AQI
12th August 2025
33AQI
33AQI
13th August 2025
40AQI
40AQI
14th August 2025
46AQI
46AQI
15th August 2025
42AQI
42AQI
16th August 2025
42AQI
42AQI
17th August 2025
36AQI
36AQI
18th August 2025
44AQI
44AQI
19th August 2025
48AQI
48AQI
20th August 2025
45AQI
45AQI
21st August 2025
39AQI
39AQI
22nd August 2025
40AQI
40AQI
23rd August 2025
45AQI
45AQI
24th August 2025
43AQI
43AQI
25th August 2025
44AQI
44AQI
26th August 2025
42AQI
42AQI
27th August 2025
47AQI
47AQI
28th August 2025
48AQI
48AQI
29th August 2025
51AQI
51AQI
30th August 2025
49AQI
49AQI
31st August 2025
47AQI
47AQI
1st September 2025
37AQI
37AQI
2nd September 2025
31AQI
31AQI
3rd September 2025
40AQI
40AQI
4th September 2025
29AQI
29AQI
5th September 2025
22AQI
22AQI
6th September 2025
25AQI
25AQI
7th September 2025
33AQI
33AQI
8th September 2025
34AQI
34AQI
9th September 2025
29AQI
29AQI
10th September 2025
32AQI
32AQI
11th September 2025
31AQI
31AQI
12th September 2025
28AQI
28AQI
13th September 2025
32AQI
32AQI
14th September 2025
30AQI
30AQI
15th September 2025
34AQI
34AQI
16th September 2025
33AQI
33AQI
17th September 2025
37AQI
37AQI
18th September 2025
24AQI
24AQI
19th September 2025
24AQI
24AQI
20th September 2025
29AQI
29AQI
21st September 2025
20AQI
20AQI
22nd September 2025
21AQI
21AQI
23rd September 2025
22AQI
22AQI
24th September 2025
26AQI
26AQI
25th September 2025
20AQI
20AQI
26th September 2025
24AQI
24AQI
27th September 2025
19AQI
19AQI
28th September 2025
19AQI
19AQI
29th September 2025
14AQI
14AQI
30th September 2025
27AQI
27AQI
1st October 2025
36AQI
36AQI
2nd October 2025
49AQI
49AQI
3rd October 2025
52AQI
52AQI
4th October 2025
60AQI
60AQI
5th October 2025
57AQI
57AQI
6th October 2025
61AQI
61AQI
7th October 2025
60AQI
60AQI
8th October 2025
69AQI
69AQI
9th October 2025
50AQI
50AQI
10th October 2025
56AQI
56AQI
11th October 2025
65AQI
65AQI
12th October 2025
78AQI
78AQI
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
34AQI
44AQI
34AQI
42AQI
47AQI
49AQI
43AQI
28AQI
58AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202540AQI
28
3
28
22
9
29
1
24
7
19
11
17
14
29
2
30
3
9
229
56
Highest AQI recorded in
October58AQI
Lowest AQI recorded in
September28AQI
202438AQI
30
1
23
6
24
7
15
15
23
8
24
6
28
3
23
8
24
6
30
1
28
2
31
303
63
Highest AQI recorded in
April51AQI
Lowest AQI recorded in
December28AQI
202342AQI
26
4
1
28
20
11
15
15
21
10
18
12
25
6
29
2
27
3
27
4
20
9
24
6
280
82
1
Highest AQI recorded in
April51AQI
Lowest AQI recorded in
February33AQI
202241AQI
28
3
19
2
23
8
20
10
12
19
18
12
15
6
1
24
4
26
5
23
7
31
240
76
Highest AQI recorded in
May55AQI
Lowest AQI recorded in
August29AQI
202142AQI
24
7
20
8
19
10
2
24
6
21
10
11
19
24
7
26
5
25
5
23
8
24
6
30
1
271
92
2
Highest AQI recorded in
June54AQI
Lowest AQI recorded in
December31AQI
202039AQI
12
1
18
3
10
8
18
12
28
3
15
15
1
16
3
27
4
26
4
26
5
196
58
1
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
March32AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
42AQILeast Polluted Year Recorded
2024(Avg.)
38AQIYumi's annual 2025 AQI (40) shows an average percentage change of -0.1% (improved AQI) compared to previous years: 2020 (39), 2021 (42), 2022 (41), 2023 (42), 2024 (38).
