Yamatemachi, Iwakuni, 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
Yamatemachi, Iwakuni, Yamaguchi, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
19th Oct 2023
70AQILowest AQI recorded on
5th Oct 2022
19AQISame Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 52 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Yamatemachi, Iwakuni, Yamaguchi, Japan
AQI
Day
Night
.
5 AM3rd Oct 2025
6 PM
4 AM4th Oct 2025
Day time
Avg. Highest Time
7AM3rd Oct
56AQI
Avg. Lowest Time
5PM3rd Oct
41AQI
Night time
Avg. Highest Time
2AM4th Oct
59AQI
Avg. Lowest Time
7PM3rd Oct
42AQI
In the last 24 hours,
Yamatemachi's AQI reached its highest point of 59 at 2 AM during the Night, while the lowest point, 41, was recorded at 5 PM during the Day between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Yamatemachi, Iwakuni, Yamaguchi, Japan
SepOct
04th - 05th05th - 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
Day
Night
4th Sep 2025385 AMAQI
4th Sep 2025406 AMAQI
4th Sep 2025397 AMAQI
4th Sep 2025408 AMAQI
4th Sep 2025129 AMAQI
4th Sep 20252310 AMAQI
4th Sep 20251811 AMAQI
4th Sep 20251912 PMAQI
4th Sep 2025191 PMAQI
4th Sep 2025212 PMAQI
4th Sep 2025223 PMAQI
4th Sep 2025194 PMAQI
4th Sep 2025255 PMAQI
4th Sep 2025246 PMAQI
4th Sep 2025257 PMAQI
4th Sep 2025318 PMAQI
4th Sep 2025309 PMAQI
4th Sep 20251510 PMAQI
4th Sep 20251511 PMAQI
5th Sep 20251312 AMAQI
5th Sep 2025201 AMAQI
5th Sep 2025392 AMAQI
5th Sep 2025383 AMAQI
5th Sep 2025364 AMAQI
25°C24/27°C
5th Sep 2025375 AMAQI
5th Sep 2025346 AMAQI
5th Sep 2025357 AMAQI
5th Sep 2025358 AMAQI
5th Sep 2025169 AMAQI
5th Sep 20251810 AMAQI
5th Sep 20251511 AMAQI
5th Sep 20251512 PMAQI
5th Sep 2025161 PMAQI
5th Sep 2025182 PMAQI
5th Sep 2025243 PMAQI
5th Sep 2025264 PMAQI
5th Sep 2025205 PMAQI
5th Sep 2025166 PMAQI
5th Sep 2025237 PMAQI
5th Sep 2025178 PMAQI
5th Sep 2025219 PMAQI
5th Sep 20252110 PMAQI
5th Sep 20252211 PMAQI
6th Sep 20252112 AMAQI
6th Sep 2025211 AMAQI
6th Sep 2025232 AMAQI
6th Sep 2025223 AMAQI
6th Sep 2025244 AMAQI
27°C24/32°C
6th Sep 2025255 AMAQI
6th Sep 2025256 AMAQI
6th Sep 2025267 AMAQI
6th Sep 2025258 AMAQI
6th Sep 2025249 AMAQI
6th Sep 20252410 AMAQI
6th Sep 20252211 AMAQI
6th Sep 20252112 PMAQI
6th Sep 2025261 PMAQI
6th Sep 2025242 PMAQI
6th Sep 2025263 PMAQI
6th Sep 2025304 PMAQI
6th Sep 2025275 PMAQI
6th Sep 2025326 PMAQI
6th Sep 2025227 PMAQI
6th Sep 2025268 PMAQI
6th Sep 2025249 PMAQI
6th Sep 20252510 PMAQI
6th Sep 20252211 PMAQI
7th Sep 20252612 AMAQI
7th Sep 2025241 AMAQI
7th Sep 2025232 AMAQI
7th Sep 2025233 AMAQI
7th Sep 2025244 AMAQI
26°C24/29°C
7th Sep 2025245 AMAQI
7th Sep 2025246 AMAQI
7th Sep 2025247 AMAQI
7th Sep 2025238 AMAQI
7th Sep 2025329 AMAQI
7th Sep 20253510 AMAQI
7th Sep 20253511 AMAQI
7th Sep 20253812 PMAQI
7th Sep 2025341 PMAQI
7th Sep 2025392 PMAQI
7th Sep 2025373 PMAQI
7th Sep 2025394 PMAQI
7th Sep 2025415 PMAQI
7th Sep 2025426 PMAQI
7th Sep 2025497 PMAQI
7th Sep 2025388 PMAQI
7th Sep 2025319 PMAQI
7th Sep 20253110 PMAQI
7th Sep 20253811 PMAQI
8th Sep 20253612 AMAQI
8th Sep 2025281 AMAQI
8th Sep 2025252 AMAQI
8th Sep 2025253 AMAQI
8th Sep 2025264 AMAQI
27°C24/32°C
8th Sep 2025265 AMAQI
8th Sep 2025266 AMAQI
8th Sep 2025277 AMAQI
8th Sep 2025278 AMAQI
8th Sep 2025349 AMAQI
8th Sep 20254610 AMAQI
8th Sep 20254211 AMAQI
8th Sep 20254012 PMAQI
8th Sep 2025401 PMAQI
8th Sep 2025372 PMAQI
8th Sep 2025383 PMAQI
8th Sep 2025424 PMAQI
8th Sep 2025395 PMAQI
8th Sep 2025416 PMAQI
8th Sep 2025407 PMAQI
8th Sep 2025368 PMAQI
8th Sep 2025339 PMAQI
8th Sep 20252810 PMAQI
8th Sep 20252611 PMAQI
9th Sep 20253012 AMAQI
9th Sep 2025301 AMAQI
9th Sep 2025282 AMAQI
9th Sep 2025293 AMAQI
9th Sep 2025294 AMAQI
27°C25/31°C
9th Sep 2025305 AMAQI
9th Sep 2025326 AMAQI
9th Sep 2025307 AMAQI
9th Sep 2025308 AMAQI
9th Sep 2025369 AMAQI
9th Sep 20253010 AMAQI
9th Sep 20252911 AMAQI
9th Sep 20253012 PMAQI
9th Sep 2025361 PMAQI
9th Sep 2025222 PMAQI
9th Sep 2025343 PMAQI
9th Sep 2025244 PMAQI
9th Sep 2025275 PMAQI
9th Sep 2025246 PMAQI
9th Sep 2025327 PMAQI
9th Sep 2025248 PMAQI
9th Sep 2025239 PMAQI
9th Sep 20252610 PMAQI
9th Sep 20252711 PMAQI
10th Sep 20252912 AMAQI
10th Sep 2025301 AMAQI
10th Sep 2025302 AMAQI
10th Sep 2025293 AMAQI
10th Sep 2025304 AMAQI
27°C23/31°C
10th Sep 2025295 AMAQI
10th Sep 2025306 AMAQI
10th Sep 2025307 AMAQI
10th Sep 2025298 AMAQI
10th Sep 2025379 AMAQI
10th Sep 20254610 AMAQI
10th Sep 20253611 AMAQI
10th Sep 20254212 PMAQI
10th Sep 2025381 PMAQI
10th Sep 2025392 PMAQI
10th Sep 2025323 PMAQI
10th Sep 2025284 PMAQI
10th Sep 2025255 PMAQI
10th Sep 2025306 PMAQI
10th Sep 2025277 PMAQI
10th Sep 2025308 PMAQI
10th Sep 2025279 PMAQI
10th Sep 20252810 PMAQI
10th Sep 20253011 PMAQI
11th Sep 20252912 AMAQI
11th Sep 2025351 AMAQI
11th Sep 2025332 AMAQI
11th Sep 2025343 AMAQI
11th Sep 2025324 AMAQI
25°C23/26°C
11th Sep 2025335 AMAQI
11th Sep 2025326 AMAQI
11th Sep 2025327 AMAQI
11th Sep 2025328 AMAQI
11th Sep 2025179 AMAQI
11th Sep 20252610 AMAQI
11th Sep 20252211 AMAQI
11th Sep 20253412 PMAQI
11th Sep 2025361 PMAQI
11th Sep 2025482 PMAQI
11th Sep 2025393 PMAQI
11th Sep 2025344 PMAQI
11th Sep 2025315 PMAQI
11th Sep 2025226 PMAQI
11th Sep 2025247 PMAQI
11th Sep 2025278 PMAQI
11th Sep 2025339 PMAQI
11th Sep 20252810 PMAQI
11th Sep 20252511 PMAQI
12th Sep 20252612 AMAQI
12th Sep 2025311 AMAQI
12th Sep 2025322 AMAQI
12th Sep 2025323 AMAQI
12th Sep 2025324 AMAQI
25°C23/28°C
12th Sep 2025315 AMAQI
12th Sep 2025326 AMAQI
12th Sep 2025327 AMAQI
12th Sep 2025328 AMAQI
12th Sep 2025249 AMAQI
12th Sep 20252310 AMAQI
12th Sep 20251711 AMAQI
12th Sep 20252212 PMAQI
12th Sep 2025231 PMAQI
12th Sep 2025282 PMAQI
12th Sep 2025263 PMAQI
12th Sep 2025274 PMAQI
12th Sep 2025245 PMAQI
12th Sep 2025336 PMAQI
12th Sep 2025247 PMAQI
12th Sep 2025248 PMAQI
12th Sep 2025289 PMAQI
12th Sep 20252510 PMAQI
12th Sep 20252411 PMAQI
13th Sep 20252812 AMAQI
13th Sep 2025321 AMAQI
13th Sep 2025322 AMAQI
13th Sep 2025323 AMAQI
13th Sep 2025314 AMAQI
25°C23/28°C
13th Sep 2025315 AMAQI
13th Sep 2025316 AMAQI
13th Sep 2025317 AMAQI
13th Sep 2025318 AMAQI
13th Sep 2025209 AMAQI
13th Sep 20252810 AMAQI
13th Sep 20253811 AMAQI
13th Sep 20252712 PMAQI
13th Sep 2025281 PMAQI
13th Sep 2025232 PMAQI
13th Sep 2025243 PMAQI
13th Sep 2025304 PMAQI
13th Sep 2025275 PMAQI
13th Sep 2025326 PMAQI
13th Sep 2025427 PMAQI
13th Sep 2025388 PMAQI
13th Sep 2025329 PMAQI
13th Sep 20253810 PMAQI
13th Sep 20253511 PMAQI
14th Sep 20253412 AMAQI
14th Sep 2025301 AMAQI
14th Sep 2025322 AMAQI
14th Sep 2025313 AMAQI
14th Sep 2025314 AMAQI
26°C24/28°C
14th Sep 2025315 AMAQI
14th Sep 2025316 AMAQI
14th Sep 2025327 AMAQI
14th Sep 2025328 AMAQI
14th Sep 2025229 AMAQI
14th Sep 20251810 AMAQI
14th Sep 20252111 AMAQI
14th Sep 20252212 PMAQI
14th Sep 2025241 PMAQI
14th Sep 2025272 PMAQI
14th Sep 2025283 PMAQI
14th Sep 2025304 PMAQI
14th Sep 2025305 PMAQI
14th Sep 2025366 PMAQI
14th Sep 2025337 PMAQI
14th Sep 2025328 PMAQI
14th Sep 2025329 PMAQI
14th Sep 20253210 PMAQI
14th Sep 20253311 PMAQI
15th Sep 20253512 AMAQI
15th Sep 2025321 AMAQI
15th Sep 2025322 AMAQI
15th Sep 2025333 AMAQI
15th Sep 2025314 AMAQI
27°C24/30°C
15th Sep 2025305 AMAQI
15th Sep 2025316 AMAQI
15th Sep 2025307 AMAQI
15th Sep 2025308 AMAQI
15th Sep 2025319 AMAQI
15th Sep 20252910 AMAQI
15th Sep 20254211 AMAQI
15th Sep 20254612 PMAQI
15th Sep 2025491 PMAQI
15th Sep 2025482 PMAQI
15th Sep 2025483 PMAQI
15th Sep 2025464 PMAQI
15th Sep 2025365 PMAQI
15th Sep 2025386 PMAQI
15th Sep 2025327 PMAQI
15th Sep 2025348 PMAQI
15th Sep 2025329 PMAQI
15th Sep 20253210 PMAQI
15th Sep 20253011 PMAQI
16th Sep 20253212 AMAQI
16th Sep 2025321 AMAQI
16th Sep 2025322 AMAQI
16th Sep 2025323 AMAQI
16th Sep 2025334 AMAQI
26°C24/29°C
16th Sep 2025345 AMAQI
16th Sep 2025336 AMAQI
16th Sep 2025347 AMAQI
16th Sep 2025338 AMAQI
16th Sep 2025429 AMAQI
16th Sep 20253610 AMAQI
16th Sep 20254111 AMAQI
16th Sep 20255212 PMAQI
16th Sep 2025521 PMAQI
16th Sep 2025442 PMAQI
16th Sep 2025483 PMAQI
16th Sep 2025484 PMAQI
16th Sep 2025425 PMAQI
16th Sep 2025446 PMAQI
16th Sep 2025367 PMAQI
16th Sep 2025348 PMAQI
16th Sep 2025429 PMAQI
16th Sep 20254810 PMAQI
16th Sep 20254311 PMAQI
17th Sep 20254412 AMAQI
17th Sep 2025381 AMAQI
17th Sep 2025322 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025344 AMAQI
27°C24/30°C
17th Sep 2025355 AMAQI
17th Sep 2025346 AMAQI
17th Sep 2025357 AMAQI
17th Sep 2025358 AMAQI
17th Sep 2025579 AMAQI
17th Sep 20256510 AMAQI
17th Sep 20255611 AMAQI
17th Sep 20256112 PMAQI
17th Sep 2025541 PMAQI
17th Sep 2025322 PMAQI
17th Sep 2025303 PMAQI
17th Sep 2025324 PMAQI
17th Sep 2025365 PMAQI
17th Sep 2025386 PMAQI
17th Sep 2025317 PMAQI
17th Sep 2025388 PMAQI
17th Sep 2025419 PMAQI
17th Sep 20253510 PMAQI
17th Sep 20253111 PMAQI
18th Sep 20253012 AMAQI
18th Sep 2025301 AMAQI
18th Sep 2025342 AMAQI
18th Sep 2025353 AMAQI
18th Sep 2025364 AMAQI
27°C24/30°C
18th Sep 2025405 AMAQI
18th Sep 2025406 AMAQI
18th Sep 2025407 AMAQI
18th Sep 2025408 AMAQI
18th Sep 2025249 AMAQI
18th Sep 20251610 AMAQI
18th Sep 20251511 AMAQI
18th Sep 20252512 PMAQI
18th Sep 2025151 PMAQI
18th Sep 2025122 PMAQI
18th Sep 2025163 PMAQI
18th Sep 2025184 PMAQI
18th Sep 2025205 PMAQI
18th Sep 2025236 PMAQI
18th Sep 2025237 PMAQI
18th Sep 2025218 PMAQI
18th Sep 2025269 PMAQI
18th Sep 20252510 PMAQI
18th Sep 20252411 PMAQI
19th Sep 20252212 AMAQI
19th Sep 2025261 AMAQI
19th Sep 2025332 AMAQI
19th Sep 2025343 AMAQI
19th Sep 2025324 AMAQI
25°C23/28°C
19th Sep 2025315 AMAQI
19th Sep 2025316 AMAQI
19th Sep 2025307 AMAQI
19th Sep 2025328 AMAQI
19th Sep 2025209 AMAQI
19th Sep 20251810 AMAQI
19th Sep 20252211 AMAQI
19th Sep 20251812 PMAQI
19th Sep 2025191 PMAQI
19th Sep 2025232 PMAQI
19th Sep 2025273 PMAQI
19th Sep 2025264 PMAQI
19th Sep 2025225 PMAQI
19th Sep 2025226 PMAQI
19th Sep 2025287 PMAQI
19th Sep 2025348 PMAQI
19th Sep 2025309 PMAQI
19th Sep 20252910 PMAQI
19th Sep 20252811 PMAQI
20th Sep 20252912 AMAQI
20th Sep 2025311 AMAQI
20th Sep 2025292 AMAQI
20th Sep 2025293 AMAQI
20th Sep 2025284 AMAQI
23°C20/27°C
20th Sep 2025285 AMAQI
20th Sep 2025286 AMAQI
20th Sep 2025287 AMAQI
20th Sep 2025288 AMAQI
20th Sep 2025399 AMAQI
20th Sep 20255010 AMAQI
20th Sep 20255711 AMAQI
20th Sep 20255212 PMAQI
20th Sep 2025521 PMAQI
20th Sep 2025502 PMAQI
20th Sep 2025503 PMAQI
20th Sep 2025454 PMAQI
20th Sep 2025445 PMAQI
20th Sep 2025326 PMAQI
20th Sep 2025347 PMAQI
20th Sep 2025428 PMAQI
20th Sep 2025419 PMAQI
20th Sep 20254810 PMAQI
20th Sep 20254111 PMAQI
21st Sep 20253012 AMAQI
21st Sep 2025261 AMAQI
21st Sep 2025282 AMAQI
21st Sep 2025283 AMAQI
21st Sep 2025304 AMAQI
24°C23/26°C
21st Sep 2025325 AMAQI
21st Sep 2025336 AMAQI
21st Sep 2025327 AMAQI
21st Sep 2025328 AMAQI
21st Sep 2025199 AMAQI
21st Sep 20251410 AMAQI
21st Sep 20252011 AMAQI
21st Sep 20253012 PMAQI
21st Sep 2025191 PMAQI
21st Sep 2025162 PMAQI
21st Sep 2025183 PMAQI
21st Sep 2025204 PMAQI
21st Sep 2025175 PMAQI
21st Sep 2025146 PMAQI
21st Sep 2025167 PMAQI
21st Sep 2025178 PMAQI
21st Sep 2025249 PMAQI
21st Sep 20252210 PMAQI
21st Sep 20252211 PMAQI
22nd Sep 20252312 AMAQI
22nd Sep 2025251 AMAQI
22nd Sep 2025282 AMAQI
22nd Sep 2025293 AMAQI
22nd Sep 2025284 AMAQI
24°C20/27°C
22nd Sep 2025275 AMAQI
22nd Sep 2025276 AMAQI
22nd Sep 2025277 AMAQI
22nd Sep 2025288 AMAQI
22nd Sep 2025189 AMAQI
22nd Sep 20251610 AMAQI
22nd Sep 20251611 AMAQI
22nd Sep 20251812 PMAQI
22nd Sep 2025181 PMAQI
22nd Sep 2025172 PMAQI
22nd Sep 2025223 PMAQI
22nd Sep 2025234 PMAQI
22nd Sep 2025245 PMAQI
22nd Sep 2025266 PMAQI
22nd Sep 2025277 PMAQI
22nd Sep 2025228 PMAQI
22nd Sep 2025229 PMAQI
22nd Sep 20252410 PMAQI
22nd Sep 20252611 PMAQI
23rd Sep 20252612 AMAQI
23rd Sep 2025251 AMAQI
23rd Sep 2025262 AMAQI
23rd Sep 2025263 AMAQI
23rd Sep 2025254 AMAQI
22°C19/25°C
23rd Sep 2025245 AMAQI
23rd Sep 2025256 AMAQI
23rd Sep 2025257 AMAQI
23rd Sep 2025248 AMAQI
23rd Sep 2025319 AMAQI
23rd Sep 20254010 AMAQI
23rd Sep 20253211 AMAQI
23rd Sep 20253812 PMAQI
23rd Sep 2025301 PMAQI
23rd Sep 2025322 PMAQI
23rd Sep 2025303 PMAQI
23rd Sep 2025264 PMAQI
23rd Sep 2025225 PMAQI
23rd Sep 2025256 PMAQI
23rd Sep 2025267 PMAQI
23rd Sep 2025268 PMAQI
23rd Sep 2025229 PMAQI
23rd Sep 20252610 PMAQI
23rd Sep 20252411 PMAQI
24th Sep 20253212 AMAQI
24th Sep 2025241 AMAQI
24th Sep 2025252 AMAQI
24th Sep 2025253 AMAQI
24th Sep 2025264 AMAQI
22°C20/22°C
24th Sep 2025265 AMAQI
24th Sep 2025276 AMAQI
24th Sep 2025267 AMAQI
24th Sep 2025268 AMAQI
24th Sep 2025279 AMAQI
24th Sep 20253310 AMAQI
24th Sep 20253211 AMAQI
24th Sep 20253612 PMAQI
24th Sep 2025451 PMAQI
24th Sep 2025482 PMAQI
24th Sep 2025493 PMAQI
24th Sep 2025424 PMAQI
24th Sep 2025465 PMAQI
24th Sep 2025466 PMAQI
24th Sep 2025517 PMAQI
24th Sep 2025448 PMAQI
24th Sep 2025379 PMAQI
24th Sep 20253810 PMAQI
24th Sep 20253511 PMAQI
25th Sep 20253012 AMAQI
25th Sep 2025291 AMAQI
25th Sep 2025262 AMAQI
25th Sep 2025253 AMAQI
25th Sep 2025264 AMAQI
23°C22/26°C
25th Sep 2025285 AMAQI
25th Sep 2025286 AMAQI
25th Sep 2025287 AMAQI
25th Sep 2025288 AMAQI
25th Sep 2025189 AMAQI
25th Sep 20251510 AMAQI
25th Sep 20251411 AMAQI
25th Sep 20251312 PMAQI
25th Sep 2025151 PMAQI
25th Sep 2025232 PMAQI
25th Sep 2025253 PMAQI
25th Sep 2025264 PMAQI
25th Sep 2025265 PMAQI
25th Sep 2025266 PMAQI
25th Sep 2025277 PMAQI
25th Sep 2025268 PMAQI
25th Sep 2025259 PMAQI
25th Sep 20251910 PMAQI
25th Sep 20251711 PMAQI
26th Sep 20251712 AMAQI
26th Sep 2025201 AMAQI
26th Sep 2025172 AMAQI
26th Sep 2025123 AMAQI
26th Sep 2025154 AMAQI
24°C23/26°C
26th Sep 2025135 AMAQI
26th Sep 2025116 AMAQI
26th Sep 2025187 AMAQI
26th Sep 2025198 AMAQI
26th Sep 2025249 AMAQI
26th Sep 20253210 AMAQI
26th Sep 20254011 AMAQI
26th Sep 20253912 PMAQI
26th Sep 2025421 PMAQI
26th Sep 2025452 PMAQI
26th Sep 2025483 PMAQI
26th Sep 2025514 PMAQI
26th Sep 2025555 PMAQI
26th Sep 2025566 PMAQI
26th Sep 2025537 PMAQI
26th Sep 2025568 PMAQI
26th Sep 2025559 PMAQI
26th Sep 20253310 PMAQI
26th Sep 20252011 PMAQI
27th Sep 20251812 AMAQI
27th Sep 2025201 AMAQI
27th Sep 2025192 AMAQI
27th Sep 2025193 AMAQI
27th Sep 2025204 AMAQI
24°C22/28°C
27th Sep 2025225 AMAQI
27th Sep 2025246 AMAQI
27th Sep 2025267 AMAQI
27th Sep 2025268 AMAQI
27th Sep 2025319 AMAQI
27th Sep 20253310 AMAQI
27th Sep 20254411 AMAQI
27th Sep 20253612 PMAQI
27th Sep 2025371 PMAQI
27th Sep 2025432 PMAQI
27th Sep 2025483 PMAQI
27th Sep 2025504 PMAQI
27th Sep 2025505 PMAQI
27th Sep 2025466 PMAQI
27th Sep 2025487 PMAQI
27th Sep 2025438 PMAQI
27th Sep 2025409 PMAQI
27th Sep 20254410 PMAQI
27th Sep 20254111 PMAQI
28th Sep 20253512 AMAQI
28th Sep 2025301 AMAQI
28th Sep 2025282 AMAQI
28th Sep 2025283 AMAQI
28th Sep 2025284 AMAQI
23°C20/25°C
28th Sep 2025275 AMAQI
28th Sep 2025306 AMAQI
28th Sep 2025257 AMAQI
28th Sep 2025268 AMAQI
28th Sep 2025249 AMAQI
28th Sep 20252610 AMAQI
28th Sep 20253111 AMAQI
28th Sep 20253312 PMAQI
28th Sep 2025261 PMAQI
28th Sep 2025262 PMAQI
28th Sep 2025353 PMAQI
28th Sep 2025424 PMAQI
28th Sep 2025375 PMAQI
28th Sep 2025336 PMAQI
28th Sep 2025337 PMAQI
28th Sep 2025308 PMAQI
28th Sep 2025319 PMAQI
28th Sep 20253310 PMAQI
28th Sep 20253011 PMAQI
29th Sep 20253112 AMAQI
29th Sep 2025331 AMAQI
29th Sep 2025382 AMAQI
29th Sep 2025413 AMAQI
29th Sep 2025424 AMAQI
21°C19/22°C
29th Sep 2025325 AMAQI
29th Sep 2025236 AMAQI
29th Sep 2025157 AMAQI
29th Sep 2025118 AMAQI
29th Sep 2025139 AMAQI
29th Sep 20251210 AMAQI
29th Sep 20251111 AMAQI
29th Sep 20251112 PMAQI
29th Sep 2025111 PMAQI
29th Sep 2025112 PMAQI
29th Sep 2025243 PMAQI
29th Sep 2025304 PMAQI
29th Sep 2025315 PMAQI
29th Sep 2025266 PMAQI
29th Sep 2025267 PMAQI
29th Sep 2025288 PMAQI
29th Sep 2025329 PMAQI
29th Sep 20254010 PMAQI
29th Sep 20252711 PMAQI
30th Sep 20252712 AMAQI
30th Sep 2025221 AMAQI
30th Sep 2025242 AMAQI
30th Sep 2025223 AMAQI
30th Sep 2025204 AMAQI
23°C19/27°C
30th Sep 2025235 AMAQI
30th Sep 2025196 AMAQI
30th Sep 2025257 AMAQI
30th Sep 2025218 AMAQI
30th Sep 2025169 AMAQI
30th Sep 20251110 AMAQI
30th Sep 20253811 AMAQI
30th Sep 20254512 PMAQI
30th Sep 2025451 PMAQI
30th Sep 2025402 PMAQI
30th Sep 2025383 PMAQI
30th Sep 2025434 PMAQI
30th Sep 2025435 PMAQI
30th Sep 2025336 PMAQI
30th Sep 2025337 PMAQI
30th Sep 2025358 PMAQI
30th Sep 2025409 PMAQI
30th Sep 20254510 PMAQI
30th Sep 20254511 PMAQI
1st Oct 20253612 AMAQI
1st Oct 2025441 AMAQI
1st Oct 2025372 AMAQI
1st Oct 2025353 AMAQI
1st Oct 2025344 AMAQI
21°C17/24°C
1st Oct 2025225 AMAQI
1st Oct 2025206 AMAQI
1st Oct 2025187 AMAQI
1st Oct 2025178 AMAQI
1st Oct 2025179 AMAQI
1st Oct 20251810 AMAQI
1st Oct 20252711 AMAQI
1st Oct 20255112 PMAQI
1st Oct 2025591 PMAQI
1st Oct 2025572 PMAQI
1st Oct 2025583 PMAQI
1st Oct 2025604 PMAQI
1st Oct 2025595 PMAQI
1st Oct 2025606 PMAQI
1st Oct 2025587 PMAQI
1st Oct 2025608 PMAQI
1st Oct 2025579 PMAQI
1st Oct 20256010 PMAQI
1st Oct 20256211 PMAQI
2nd Oct 20255912 AMAQI
2nd Oct 2025571 AMAQI
2nd Oct 2025572 AMAQI
2nd Oct 2025523 AMAQI
2nd Oct 2025514 AMAQI
21°C18/25°C
2nd Oct 2025465 AMAQI
2nd Oct 2025476 AMAQI
2nd Oct 2025507 AMAQI
2nd Oct 2025388 AMAQI
2nd Oct 2025449 AMAQI
2nd Oct 20254210 AMAQI
2nd Oct 20254211 AMAQI
2nd Oct 20254512 PMAQI
2nd Oct 2025431 PMAQI
2nd Oct 2025422 PMAQI
2nd Oct 2025383 PMAQI
2nd Oct 2025514 PMAQI
2nd Oct 2025495 PMAQI
2nd Oct 2025526 PMAQI
2nd Oct 2025437 PMAQI
2nd Oct 2025488 PMAQI
2nd Oct 2025499 PMAQI
2nd Oct 20254510 PMAQI
2nd Oct 20254611 PMAQI
3rd Oct 20254212 AMAQI
3rd Oct 2025501 AMAQI
3rd Oct 2025452 AMAQI
3rd Oct 2025553 AMAQI
3rd Oct 2025574 AMAQI
21°C17/25°C
3rd Oct 2025555 AMAQI
3rd Oct 2025556 AMAQI
3rd Oct 2025567 AMAQI
3rd Oct 2025568 AMAQI
3rd Oct 2025559 AMAQI
3rd Oct 20255610 AMAQI
3rd Oct 20255011 AMAQI
3rd Oct 20255012 PMAQI
3rd Oct 2025461 PMAQI
3rd Oct 2025512 PMAQI
3rd Oct 2025493 PMAQI
3rd Oct 2025424 PMAQI
3rd Oct 2025415 PMAQI
3rd Oct 2025506 PMAQI
3rd Oct 2025427 PMAQI
3rd Oct 2025448 PMAQI
3rd Oct 2025469 PMAQI
3rd Oct 20255210 PMAQI
3rd Oct 20255611 PMAQI
4th Oct 20255612 AMAQI
4th Oct 2025581 AMAQI
4th Oct 2025592 AMAQI
4th Oct 2025513 AMAQI
4th Oct 2025504 AMAQI
20°C19/20°C
4th Oct 2025505 AMAQI
5 AM4th Oct 2025546 AMAQI
4th Oct 2025547 AMAQI
4th Oct 2025548 AMAQI
4th Oct 2025579 AMAQI
4th Oct 20255510 AMAQI
4th Oct 20255211 AMAQI
11 AM4th Oct 20255112 PMAQI
4th Oct 2025491 PMAQI
4th Oct 2025502 PMAQI
4th Oct 2025523 PMAQI
4th Oct 2025544 PMAQI
4th Oct 2025565 PMAQI
4th Oct 2025576 PMAQI
6 PM4th Oct 2025607 PMAQI
4th Oct 2025578 PMAQI
4th Oct 2025589 PMAQI
4th Oct 20256710 PMAQI
4th Oct 20256311 PMAQI
11 PM4 AM
--°C/°C
Day time
Avg. Highest Time
3 PM - 6 PM
35AQI
4 hours / Day
120 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 3 PM to 6 PM (Avg. 35), while the lowest AQI was between 9 AM to 9 AM (Avg. 28).
Night time
Avg. Highest Time
7 PM - 11 PM
34AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM - 1 AM
31AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 34), while the lowest AQI was between 12 AM to 1 AM (Avg. 31).
2025 Days Vs Air Quality
Yamatemachi, Iwakuni, Yamaguchi, Japan
2025
75%
208
25%
68
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Good
208 DaysModerate
68 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 75%
Health Risk Level:
Low
In 2025, 75% of 277 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
Yamatemachi, Iwakuni, 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
27AQI
27AQI
2nd January 2025
33AQI
33AQI
3rd January 2025
30AQI
30AQI
4th January 2025
29AQI
29AQI
5th January 2025
28AQI
28AQI
6th January 2025
38AQI
38AQI
7th January 2025
30AQI
30AQI
8th January 2025
32AQI
32AQI
9th January 2025
29AQI
29AQI
10th January 2025
28AQI
28AQI
11th January 2025
28AQI
28AQI
12th January 2025
30AQI
30AQI
13th January 2025
40AQI
40AQI
14th January 2025
45AQI
45AQI
15th January 2025
37AQI
37AQI
16th January 2025
33AQI
33AQI
17th January 2025
31AQI
31AQI
18th January 2025
30AQI
30AQI
19th January 2025
40AQI
40AQI
20th January 2025
40AQI
40AQI
21st January 2025
50AQI
50AQI
22nd January 2025
61AQI
61AQI
23rd January 2025
71AQI
71AQI
24th January 2025
69AQI
69AQI
25th January 2025
45AQI
45AQI
26th January 2025
42AQI
42AQI
27th January 2025
34AQI
34AQI
28th January 2025
35AQI
35AQI
29th January 2025
31AQI
31AQI
30th January 2025
43AQI
43AQI
31st January 2025
49AQI
49AQI
1st February 2025
53AQI
53AQI
2nd February 2025
35AQI
35AQI
3rd February 2025
43AQI
43AQI
4th February 2025
32AQI
32AQI
5th February 2025
36AQI
36AQI
6th February 2025
30AQI
30AQI
7th February 2025
32AQI
32AQI
8th February 2025
30AQI
30AQI
9th February 2025
29AQI
29AQI
10th February 2025
30AQI
30AQI
11th February 2025
33AQI
33AQI
12th February 2025
35AQI
35AQI
13th February 2025
31AQI
31AQI
14th February 2025
38AQI
38AQI
15th February 2025
31AQI
31AQI
16th February 2025
40AQI
40AQI
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
36AQI
36AQI
23rd February 2025
33AQI
33AQI
24th February 2025
36AQI
36AQI
25th February 2025
36AQI
36AQI
26th February 2025
42AQI
42AQI
27th February 2025
63AQI
63AQI
28th February 2025
60AQI
60AQI
1st March 2025
70AQI
70AQI
2nd March 2025
75AQI
75AQI
3rd March 2025
47AQI
47AQI
4th March 2025
40AQI
40AQI
5th March 2025
31AQI
31AQI
6th March 2025
36AQI
36AQI
7th March 2025
32AQI
32AQI
8th March 2025
39AQI
39AQI
9th March 2025
41AQI
41AQI
10th March 2025
41AQI
41AQI
11th March 2025
45AQI
45AQI
12th March 2025
50AQI
50AQI
13th March 2025
52AQI
52AQI
14th March 2025
35AQI
35AQI
15th March 2025
35AQI
35AQI
16th March 2025
20AQI
20AQI
17th March 2025
35AQI
35AQI
18th March 2025
30AQI
30AQI
19th March 2025
38AQI
38AQI
20th March 2025
46AQI
46AQI
21st March 2025
53AQI
53AQI
22nd March 2025
63AQI
63AQI
23rd March 2025
67AQI
67AQI
24th March 2025
59AQI
59AQI
25th March 2025
68AQI
68AQI
26th March 2025
72AQI
72AQI
27th March 2025
62AQI
62AQI
28th March 2025
53AQI
53AQI
29th March 2025
48AQI
48AQI
30th March 2025
39AQI
39AQI
31st March 2025
37AQI
37AQI
1st April 2025
39AQI
39AQI
2nd April 2025
33AQI
33AQI
3rd April 2025
26AQI
26AQI
4th April 2025
31AQI
31AQI
5th April 2025
40AQI
40AQI
6th April 2025
39AQI
39AQI
7th April 2025
43AQI
43AQI
8th April 2025
38AQI
38AQI
9th April 2025
59AQI
59AQI
10th April 2025
53AQI
53AQI
11th April 2025
56AQI
56AQI
12th April 2025
55AQI
55AQI
13th April 2025
44AQI
44AQI
14th April 2025
43AQI
43AQI
15th April 2025
29AQI
29AQI
16th April 2025
49AQI
49AQI
17th April 2025
49AQI
49AQI
18th April 2025
57AQI
57AQI
19th April 2025
54AQI
54AQI
20th April 2025
37AQI
37AQI
21st April 2025
39AQI
39AQI
22nd April 2025
49AQI
49AQI
23rd April 2025
32AQI
32AQI
24th April 2025
40AQI
40AQI
25th April 2025
65AQI
65AQI
26th April 2025
57AQI
57AQI
27th April 2025
59AQI
59AQI
28th April 2025
50AQI
50AQI
29th April 2025
48AQI
48AQI
30th April 2025
56AQI
56AQI
1st May 2025
55AQI
55AQI
2nd May 2025
41AQI
41AQI
3rd May 2025
48AQI
48AQI
4th May 2025
39AQI
39AQI
5th May 2025
44AQI
44AQI
6th May 2025
32AQI
32AQI
7th May 2025
35AQI
35AQI
8th May 2025
36AQI
36AQI
9th May 2025
38AQI
38AQI
10th May 2025
34AQI
34AQI
11th May 2025
40AQI
40AQI
12th May 2025
51AQI
51AQI
13th May 2025
56AQI
56AQI
14th May 2025
60AQI
60AQI
15th May 2025
57AQI
57AQI
16th May 2025
56AQI
56AQI
17th May 2025
45AQI
45AQI
18th May 2025
52AQI
52AQI
19th May 2025
59AQI
59AQI
20th May 2025
58AQI
58AQI
21st May 2025
46AQI
46AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
47AQI
47AQI
24th May 2025
37AQI
37AQI
25th May 2025
28AQI
28AQI
26th May 2025
34AQI
34AQI
27th May 2025
42AQI
42AQI
28th May 2025
45AQI
45AQI
29th May 2025
50AQI
50AQI
30th May 2025
45AQI
45AQI
31st May 2025
40AQI
40AQI
1st June 2025
48AQI
48AQI
2nd June 2025
54AQI
54AQI
3rd June 2025
33AQI
33AQI
4th June 2025
43AQI
43AQI
5th June 2025
47AQI
47AQI
6th June 2025
53AQI
53AQI
7th June 2025
59AQI
59AQI
8th June 2025
65AQI
65AQI
9th June 2025
66AQI
66AQI
10th June 2025
37AQI
37AQI
11th June 2025
44AQI
44AQI
12th June 2025
52AQI
52AQI
13th June 2025
49AQI
49AQI
14th June 2025
40AQI
40AQI
15th June 2025
34AQI
34AQI
16th June 2025
36AQI
36AQI
17th June 2025
37AQI
37AQI
18th June 2025
47AQI
47AQI
19th June 2025
51AQI
51AQI
20th June 2025
57AQI
57AQI
21st June 2025
59AQI
59AQI
22nd June 2025
61AQI
61AQI
23rd June 2025
43AQI
43AQI
24th June 2025
47AQI
47AQI
25th June 2025
47AQI
47AQI
26th June 2025
52AQI
52AQI
27th June 2025
55AQI
55AQI
28th June 2025
56AQI
56AQI
29th June 2025
56AQI
56AQI
30th June 2025
56AQI
56AQI
1st July 2025
60AQI
60AQI
2nd July 2025
78AQI
78AQI
3rd July 2025
85AQI
85AQI
4th July 2025
90AQI
90AQI
5th July 2025
84AQI
84AQI
6th July 2025
66AQI
66AQI
7th July 2025
66AQI
66AQI
8th July 2025
71AQI
71AQI
9th July 2025
76AQI
76AQI
10th July 2025
85AQI
85AQI
11th July 2025
67AQI
67AQI
12th July 2025
61AQI
61AQI
13th July 2025
56AQI
56AQI
14th July 2025
41AQI
41AQI
15th July 2025
55AQI
55AQI
16th July 2025
57AQI
57AQI
17th July 2025
50AQI
50AQI
18th July 2025
38AQI
38AQI
19th July 2025
37AQI
37AQI
20th July 2025
36AQI
36AQI
21st July 2025
31AQI
31AQI
22nd July 2025
31AQI
31AQI
23rd July 2025
35AQI
35AQI
24th July 2025
39AQI
39AQI
25th July 2025
35AQI
35AQI
26th July 2025
28AQI
28AQI
27th July 2025
25AQI
25AQI
28th July 2025
32AQI
32AQI
29th July 2025
36AQI
36AQI
30th July 2025
36AQI
36AQI
31st July 2025
37AQI
37AQI
1st August 2025
44AQI
44AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
42AQI
42AQI
4th August 2025
50AQI
50AQI
5th August 2025
42AQI
42AQI
6th August 2025
44AQI
44AQI
7th August 2025
50AQI
50AQI
8th August 2025
48AQI
48AQI
9th August 2025
41AQI
41AQI
10th August 2025
35AQI
35AQI
11th August 2025
30AQI
30AQI
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
37AQI
37AQI
18th August 2025
44AQI
44AQI
19th August 2025
49AQI
49AQI
20th August 2025
46AQI
46AQI
21st August 2025
38AQI
38AQI
22nd August 2025
40AQI
40AQI
23rd August 2025
44AQI
44AQI
24th August 2025
43AQI
43AQI
25th August 2025
43AQI
43AQI
26th August 2025
42AQI
42AQI
27th August 2025
47AQI
47AQI
28th August 2025
46AQI
46AQI
29th August 2025
51AQI
51AQI
30th August 2025
49AQI
49AQI
31st August 2025
45AQI
45AQI
1st September 2025
37AQI
37AQI
2nd September 2025
31AQI
31AQI
3rd September 2025
39AQI
39AQI
4th September 2025
29AQI
29AQI
5th September 2025
23AQI
23AQI
6th September 2025
24AQI
24AQI
7th September 2025
32AQI
32AQI
8th September 2025
33AQI
33AQI
9th September 2025
28AQI
28AQI
10th September 2025
31AQI
31AQI
11th September 2025
31AQI
31AQI
12th September 2025
27AQI
27AQI
13th September 2025
31AQI
31AQI
14th September 2025
30AQI
30AQI
15th September 2025
35AQI
35AQI
16th September 2025
39AQI
39AQI
17th September 2025
39AQI
39AQI
18th September 2025
27AQI
27AQI
19th September 2025
27AQI
27AQI
20th September 2025
38AQI
38AQI
21st September 2025
23AQI
23AQI
22nd September 2025
24AQI
24AQI
23rd September 2025
27AQI
27AQI
24th September 2025
35AQI
35AQI
25th September 2025
24AQI
24AQI
26th September 2025
33AQI
33AQI
27th September 2025
34AQI
34AQI
28th September 2025
30AQI
30AQI
29th September 2025
26AQI
26AQI
30th September 2025
31AQI
31AQI
1st October 2025
44AQI
44AQI
2nd October 2025
48AQI
48AQI
3rd October 2025
52AQI
52AQI
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
38AQI
37AQI
47AQI
46AQI
45AQI
49AQI
52AQI
43AQI
31AQI
48AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202543AQI
28
3
25
3
20
11
20
10
22
9
15
15
16
15
30
1
30
2
1
208
68
Highest AQI recorded in
July52AQI
Lowest AQI recorded in
September31AQI
202438AQI
30
1
23
6
24
7
16
14
23
8
25
5
28
3
23
8
26
4
30
1
26
4
31
305
61
Highest AQI recorded in
April51AQI
Lowest AQI recorded in
December31AQI
202341AQI
24
6
1
28
17
14
12
18
21
10
20
10
27
4
29
2
27
3
26
5
21
8
25
6
277
86
1
Highest AQI recorded in
April52AQI
Lowest AQI recorded in
February31AQI
202241AQI
28
3
19
2
20
11
12
5
15
16
19
11
15
6
1
25
4
27
4
23
7
30
1
234
70
Highest AQI recorded in
May54AQI
Lowest AQI recorded in
August27AQI
202140AQI
24
7
20
8
22
7
17
4
23
8
11
19
27
4
27
4
24
6
24
7
21
9
29
2
269
85
Highest AQI recorded in
June51AQI
Lowest AQI recorded in
December34AQI
202037AQI
11
2
15
6
13
5
18
12
28
3
13
7
18
1
26
5
25
5
26
5
193
51
Highest AQI recorded in
June45AQI
Lowest AQI recorded in
July29AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
43AQILeast Polluted Year Recorded
2020(Avg.)
37AQIYamatemachi's annual 2025 AQI (43) shows an average percentage change of 10.4% (worsened AQI) compared to previous years: 2020 (37), 2021 (40), 2022 (41), 2023 (41), 2024 (38).
