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HistoryAQIPM2.5PM10COSO2NO2O3

Omachi, Saga, 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

Omachi, Saga, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Oct 2022
81AQI
Lowest AQI recorded on
9th Oct 2023
21AQI

Same 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

Globe

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

Omachi, Saga, Japan

AQI
Day
Night
.

6 AM12th Oct 2025

6 PM

5 AM13th Oct 2025

Day time
Avg. Highest Time
12PM12th Oct

66AQI

Avg. Lowest Time
9AM12th Oct

55AQI

Night time
Avg. Highest Time
9PM12th Oct

72AQI

Avg. Lowest Time
5AM13th Oct

57AQI

In the last 24 hours,

Omachi's AQI reached its highest point of 72 at 9 PM during the Night, while the lowest point, 55, was recorded at 9 AM during the Day between 12th Oct and 13th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Omachi, Saga, 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 2025336 AMAQI
13th Sep 2025337 AMAQI
13th Sep 2025338 AMAQI
13th Sep 2025269 AMAQI
13th Sep 20253610 AMAQI
13th Sep 20253611 AMAQI
13th Sep 20253412 PMAQI
13th Sep 2025301 PMAQI
13th Sep 2025262 PMAQI
13th Sep 2025243 PMAQI
13th Sep 2025254 PMAQI
13th Sep 2025295 PMAQI
13th Sep 2025356 PMAQI
13th Sep 2025367 PMAQI
13th Sep 2025398 PMAQI
13th Sep 2025389 PMAQI
13th Sep 20253610 PMAQI
13th Sep 20253611 PMAQI
14th Sep 20253312 AMAQI
14th Sep 2025361 AMAQI
14th Sep 2025342 AMAQI
14th Sep 2025333 AMAQI
14th Sep 2025344 AMAQI
14th Sep 2025335 AMAQI

26°C24/29°C

14th Sep 2025336 AMAQI
14th Sep 2025347 AMAQI
14th Sep 2025348 AMAQI
14th Sep 2025319 AMAQI
14th Sep 20253310 AMAQI
14th Sep 20252611 AMAQI
14th Sep 20252512 PMAQI
14th Sep 2025321 PMAQI
14th Sep 2025252 PMAQI
14th Sep 2025263 PMAQI
14th Sep 2025284 PMAQI
14th Sep 2025335 PMAQI
14th Sep 2025346 PMAQI
14th Sep 2025397 PMAQI
14th Sep 2025378 PMAQI
14th Sep 2025389 PMAQI
14th Sep 20253710 PMAQI
14th Sep 20253511 PMAQI
15th Sep 20253312 AMAQI
15th Sep 2025341 AMAQI
15th Sep 2025362 AMAQI
15th Sep 2025363 AMAQI
15th Sep 2025344 AMAQI
15th Sep 2025345 AMAQI

27°C24/31°C

15th Sep 2025356 AMAQI
15th Sep 2025357 AMAQI
15th Sep 2025358 AMAQI
15th Sep 2025309 AMAQI
15th Sep 20253010 AMAQI
15th Sep 20253511 AMAQI
15th Sep 20254012 PMAQI
15th Sep 2025311 PMAQI
15th Sep 2025232 PMAQI
15th Sep 2025223 PMAQI
15th Sep 2025224 PMAQI
15th Sep 2025225 PMAQI
15th Sep 2025216 PMAQI
15th Sep 2025217 PMAQI
15th Sep 2025248 PMAQI
15th Sep 2025289 PMAQI
15th Sep 20253210 PMAQI
15th Sep 20253611 PMAQI
16th Sep 20253612 AMAQI
16th Sep 2025321 AMAQI
16th Sep 2025342 AMAQI
16th Sep 2025353 AMAQI
16th Sep 2025344 AMAQI
16th Sep 2025345 AMAQI

27°C24/32°C

16th Sep 2025346 AMAQI
16th Sep 2025347 AMAQI
16th Sep 2025348 AMAQI
16th Sep 2025249 AMAQI
16th Sep 20252210 AMAQI
16th Sep 20252311 AMAQI
16th Sep 20252712 PMAQI
16th Sep 2025261 PMAQI
16th Sep 2025292 PMAQI
16th Sep 2025293 PMAQI
16th Sep 2025324 PMAQI
16th Sep 2025325 PMAQI
16th Sep 2025306 PMAQI
16th Sep 2025317 PMAQI
16th Sep 2025338 PMAQI
16th Sep 2025329 PMAQI
16th Sep 20253310 PMAQI
16th Sep 20253411 PMAQI
17th Sep 20253212 AMAQI
17th Sep 2025341 AMAQI
17th Sep 2025342 AMAQI
17th Sep 2025353 AMAQI
17th Sep 2025334 AMAQI
17th Sep 2025325 AMAQI

27°C24/32°C

17th Sep 2025326 AMAQI
17th Sep 2025327 AMAQI
17th Sep 2025338 AMAQI
17th Sep 2025299 AMAQI
17th Sep 20252910 AMAQI
17th Sep 20252711 AMAQI
17th Sep 20252712 PMAQI
17th Sep 2025291 PMAQI
17th Sep 2025352 PMAQI
17th Sep 2025363 PMAQI
17th Sep 2025394 PMAQI
17th Sep 2025365 PMAQI
17th Sep 2025386 PMAQI
17th Sep 2025347 PMAQI
17th Sep 2025378 PMAQI
17th Sep 2025349 PMAQI
17th Sep 20252710 PMAQI
17th Sep 20252711 PMAQI
18th Sep 20252712 AMAQI
18th Sep 2025301 AMAQI
18th Sep 2025332 AMAQI
18th Sep 2025343 AMAQI
18th Sep 2025344 AMAQI
18th Sep 2025335 AMAQI

27°C24/31°C

18th Sep 2025336 AMAQI
18th Sep 2025337 AMAQI
18th Sep 2025338 AMAQI
18th Sep 2025269 AMAQI
18th Sep 20252410 AMAQI
18th Sep 20252411 AMAQI
18th Sep 20252112 PMAQI
18th Sep 2025191 PMAQI
18th Sep 2025162 PMAQI
18th Sep 2025163 PMAQI
18th Sep 2025194 PMAQI
18th Sep 2025205 PMAQI
18th Sep 2025206 PMAQI
18th Sep 2025177 PMAQI
18th Sep 2025218 PMAQI
18th Sep 2025249 PMAQI
18th Sep 20252310 PMAQI
18th Sep 20252411 PMAQI
19th Sep 20252412 AMAQI
19th Sep 2025261 AMAQI
19th Sep 2025322 AMAQI
19th Sep 2025323 AMAQI
19th Sep 2025314 AMAQI
19th Sep 2025305 AMAQI

25°C23/29°C

19th Sep 2025296 AMAQI
19th Sep 2025307 AMAQI
19th Sep 2025308 AMAQI
19th Sep 2025209 AMAQI
19th Sep 20251610 AMAQI
19th Sep 20251611 AMAQI
19th Sep 20251812 PMAQI
19th Sep 2025201 PMAQI
19th Sep 2025202 PMAQI
19th Sep 2025213 PMAQI
19th Sep 2025234 PMAQI
19th Sep 2025255 PMAQI
19th Sep 2025276 PMAQI
19th Sep 2025277 PMAQI
19th Sep 2025298 PMAQI
19th Sep 2025309 PMAQI
19th Sep 20252810 PMAQI
19th Sep 20252811 PMAQI
20th Sep 20252812 AMAQI
20th Sep 2025281 AMAQI
20th Sep 2025292 AMAQI
20th Sep 2025293 AMAQI
20th Sep 2025294 AMAQI
20th Sep 2025285 AMAQI

25°C21/30°C

20th Sep 2025276 AMAQI
20th Sep 2025287 AMAQI
20th Sep 2025278 AMAQI
20th Sep 2025259 AMAQI
20th Sep 20252610 AMAQI
20th Sep 20252111 AMAQI
20th Sep 20251812 PMAQI
20th Sep 2025181 PMAQI
20th Sep 2025162 PMAQI
20th Sep 2025163 PMAQI
20th Sep 2025164 PMAQI
20th Sep 2025185 PMAQI
20th Sep 2025166 PMAQI
20th Sep 2025167 PMAQI
20th Sep 2025188 PMAQI
20th Sep 2025239 PMAQI
20th Sep 20252210 PMAQI
20th Sep 20252311 PMAQI
21st Sep 20252312 AMAQI
21st Sep 2025251 AMAQI
21st Sep 2025282 AMAQI
21st Sep 2025283 AMAQI
21st Sep 2025284 AMAQI
21st Sep 2025275 AMAQI

24°C23/26°C

21st Sep 2025266 AMAQI
21st Sep 2025267 AMAQI
21st Sep 2025268 AMAQI
21st Sep 2025189 AMAQI
21st Sep 20251310 AMAQI
21st Sep 20251311 AMAQI
21st Sep 20251412 PMAQI
21st Sep 2025171 PMAQI
21st Sep 2025182 PMAQI
21st Sep 2025183 PMAQI
21st Sep 2025184 PMAQI
21st Sep 2025165 PMAQI
21st Sep 2025176 PMAQI
21st Sep 2025187 PMAQI
21st Sep 2025198 PMAQI
21st Sep 2025239 PMAQI
21st Sep 20252310 PMAQI
21st Sep 20252211 PMAQI
22nd Sep 20252212 AMAQI
22nd Sep 2025241 AMAQI
22nd Sep 2025262 AMAQI
22nd Sep 2025273 AMAQI
22nd Sep 2025254 AMAQI
22nd Sep 2025245 AMAQI

23°C20/27°C

22nd Sep 2025246 AMAQI
22nd Sep 2025247 AMAQI
22nd Sep 2025258 AMAQI
22nd Sep 2025209 AMAQI
22nd Sep 20251610 AMAQI
22nd Sep 20251811 AMAQI
22nd Sep 20252012 PMAQI
22nd Sep 2025221 PMAQI
22nd Sep 2025222 PMAQI
22nd Sep 2025233 PMAQI
22nd Sep 2025254 PMAQI
22nd Sep 2025305 PMAQI
22nd Sep 2025326 PMAQI
22nd Sep 2025307 PMAQI
22nd Sep 2025288 PMAQI
22nd Sep 2025259 PMAQI
22nd Sep 20252610 PMAQI
22nd Sep 20252711 PMAQI
23rd Sep 20252712 AMAQI
23rd Sep 2025271 AMAQI
23rd Sep 2025252 AMAQI
23rd Sep 2025253 AMAQI
23rd Sep 2025244 AMAQI
23rd Sep 2025245 AMAQI

23°C19/28°C

23rd Sep 2025246 AMAQI
23rd Sep 2025247 AMAQI
23rd Sep 2025248 AMAQI
23rd Sep 2025279 AMAQI
23rd Sep 20252710 AMAQI
23rd Sep 20252811 AMAQI
23rd Sep 20252612 PMAQI
23rd Sep 2025251 PMAQI
23rd Sep 2025262 PMAQI
23rd Sep 2025283 PMAQI
23rd Sep 2025284 PMAQI
23rd Sep 2025305 PMAQI
23rd Sep 2025336 PMAQI
23rd Sep 2025357 PMAQI
23rd Sep 2025348 PMAQI
23rd Sep 2025299 PMAQI
23rd Sep 20252910 PMAQI
23rd Sep 20252911 PMAQI
24th Sep 20252812 AMAQI
24th Sep 2025281 AMAQI
24th Sep 2025262 AMAQI
24th Sep 2025263 AMAQI
24th Sep 2025264 AMAQI
24th Sep 2025255 AMAQI

25°C21/29°C

24th Sep 2025256 AMAQI
24th Sep 2025257 AMAQI
24th Sep 2025258 AMAQI
24th Sep 2025229 AMAQI
24th Sep 20252010 AMAQI
24th Sep 20252111 AMAQI
24th Sep 20252112 PMAQI
24th Sep 2025221 PMAQI
24th Sep 2025222 PMAQI
24th Sep 2025263 PMAQI
24th Sep 2025304 PMAQI
24th Sep 2025325 PMAQI
24th Sep 2025306 PMAQI
24th Sep 2025317 PMAQI
24th Sep 2025298 PMAQI
24th Sep 2025289 PMAQI
24th Sep 20252710 PMAQI
24th Sep 20252811 PMAQI
25th Sep 20252712 AMAQI
25th Sep 2025271 AMAQI
25th Sep 2025272 AMAQI
25th Sep 2025263 AMAQI
25th Sep 2025254 AMAQI
25th Sep 2025255 AMAQI

25°C22/29°C

25th Sep 2025266 AMAQI
25th Sep 2025257 AMAQI
25th Sep 2025268 AMAQI
25th Sep 2025229 AMAQI
25th Sep 20252110 AMAQI
25th Sep 20251911 AMAQI
25th Sep 20251912 PMAQI
25th Sep 2025231 PMAQI
25th Sep 2025342 PMAQI
25th Sep 2025383 PMAQI
25th Sep 2025394 PMAQI
25th Sep 2025455 PMAQI
25th Sep 2025476 PMAQI
25th Sep 2025457 PMAQI
25th Sep 2025438 PMAQI
25th Sep 2025439 PMAQI
25th Sep 20254010 PMAQI
25th Sep 20254111 PMAQI
26th Sep 20253812 AMAQI
26th Sep 2025391 AMAQI
26th Sep 2025362 AMAQI
26th Sep 2025343 AMAQI
26th Sep 2025344 AMAQI
26th Sep 2025305 AMAQI

25°C23/28°C

26th Sep 2025296 AMAQI
26th Sep 2025277 AMAQI
26th Sep 2025308 AMAQI
26th Sep 2025309 AMAQI
26th Sep 20253510 AMAQI
26th Sep 20254511 AMAQI
26th Sep 20254412 PMAQI
26th Sep 2025371 PMAQI
26th Sep 2025362 PMAQI
26th Sep 2025363 PMAQI
26th Sep 2025324 PMAQI
26th Sep 2025305 PMAQI
26th Sep 2025286 PMAQI
26th Sep 2025297 PMAQI
26th Sep 2025298 PMAQI
26th Sep 2025289 PMAQI
26th Sep 20252910 PMAQI
26th Sep 20252611 PMAQI
27th Sep 20252412 AMAQI
27th Sep 2025241 AMAQI
27th Sep 2025232 AMAQI
27th Sep 2025233 AMAQI
27th Sep 2025224 AMAQI
27th Sep 2025235 AMAQI

26°C22/30°C

27th Sep 2025206 AMAQI
27th Sep 2025187 AMAQI
27th Sep 2025348 AMAQI
27th Sep 2025349 AMAQI
27th Sep 20253010 AMAQI
27th Sep 20252911 AMAQI
27th Sep 20252912 PMAQI
27th Sep 2025281 PMAQI
27th Sep 2025252 PMAQI
27th Sep 2025233 PMAQI
27th Sep 2025244 PMAQI
27th Sep 2025215 PMAQI
27th Sep 2025206 PMAQI
27th Sep 2025177 PMAQI
27th Sep 2025168 PMAQI
27th Sep 2025179 PMAQI
27th Sep 20252010 PMAQI
27th Sep 20252111 PMAQI
28th Sep 20251712 AMAQI
28th Sep 2025171 AMAQI
28th Sep 2025192 AMAQI
28th Sep 2025183 AMAQI
28th Sep 2025164 AMAQI
28th Sep 2025165 AMAQI

22°C20/23°C

28th Sep 2025156 AMAQI
28th Sep 2025177 AMAQI
28th Sep 2025228 AMAQI
28th Sep 2025249 AMAQI
28th Sep 20252810 AMAQI
28th Sep 20253311 AMAQI
28th Sep 20253512 PMAQI
28th Sep 2025381 PMAQI
28th Sep 2025352 PMAQI
28th Sep 2025353 PMAQI
28th Sep 2025344 PMAQI
28th Sep 2025325 PMAQI
28th Sep 2025326 PMAQI
28th Sep 2025337 PMAQI
28th Sep 2025368 PMAQI
28th Sep 2025379 PMAQI
28th Sep 20253510 PMAQI
28th Sep 20253211 PMAQI
29th Sep 20253012 AMAQI
29th Sep 2025301 AMAQI
29th Sep 2025302 AMAQI
29th Sep 2025313 AMAQI
29th Sep 2025304 AMAQI
29th Sep 2025295 AMAQI

24°C20/27°C

29th Sep 2025346 AMAQI
29th Sep 2025317 AMAQI
29th Sep 2025288 AMAQI
29th Sep 2025239 AMAQI
29th Sep 20251810 AMAQI
29th Sep 20251911 AMAQI
29th Sep 20252512 PMAQI
29th Sep 2025331 PMAQI
29th Sep 2025322 PMAQI
29th Sep 2025343 PMAQI
29th Sep 2025354 PMAQI
29th Sep 2025335 PMAQI
29th Sep 2025326 PMAQI
29th Sep 2025427 PMAQI
29th Sep 2025418 PMAQI
29th Sep 2025339 PMAQI
29th Sep 20252910 PMAQI
29th Sep 20252711 PMAQI
30th Sep 20253212 AMAQI
30th Sep 2025311 AMAQI
30th Sep 2025292 AMAQI
30th Sep 2025273 AMAQI
30th Sep 2025334 AMAQI
30th Sep 2025285 AMAQI

23°C21/26°C

30th Sep 2025266 AMAQI
30th Sep 2025277 AMAQI
30th Sep 2025258 AMAQI
30th Sep 2025239 AMAQI
30th Sep 20252810 AMAQI
30th Sep 20253111 AMAQI
30th Sep 20253912 PMAQI
30th Sep 2025391 PMAQI
30th Sep 2025362 PMAQI
30th Sep 2025383 PMAQI
30th Sep 2025434 PMAQI
30th Sep 2025435 PMAQI
30th Sep 2025386 PMAQI
30th Sep 2025437 PMAQI
30th Sep 2025398 PMAQI
30th Sep 2025449 PMAQI
30th Sep 20254210 PMAQI
30th Sep 20254011 PMAQI
1st Oct 20254112 AMAQI
1st Oct 2025381 AMAQI
1st Oct 2025402 AMAQI
1st Oct 2025423 AMAQI
1st Oct 2025424 AMAQI
1st Oct 2025425 AMAQI

22°C18/27°C

1st Oct 2025446 AMAQI
1st Oct 2025417 AMAQI
1st Oct 2025468 AMAQI
1st Oct 2025409 AMAQI
1st Oct 20254110 AMAQI
1st Oct 20254011 AMAQI
1st Oct 20254312 PMAQI
1st Oct 2025391 PMAQI
1st Oct 2025372 PMAQI
1st Oct 2025403 PMAQI
1st Oct 2025414 PMAQI
1st Oct 2025435 PMAQI
1st Oct 2025326 PMAQI
1st Oct 2025307 PMAQI
1st Oct 2025408 PMAQI
1st Oct 2025509 PMAQI
1st Oct 20255210 PMAQI
1st Oct 20255211 PMAQI
2nd Oct 20254812 AMAQI
2nd Oct 2025521 AMAQI
2nd Oct 2025512 AMAQI
2nd Oct 2025483 AMAQI
2nd Oct 2025514 AMAQI
2nd Oct 2025515 AMAQI

22°C18/28°C

2nd Oct 2025506 AMAQI
2nd Oct 2025487 AMAQI
2nd Oct 2025508 AMAQI
2nd Oct 2025489 AMAQI
2nd Oct 20254910 AMAQI
2nd Oct 20255111 AMAQI
2nd Oct 20255412 PMAQI
2nd Oct 2025521 PMAQI
2nd Oct 2025552 PMAQI
2nd Oct 2025553 PMAQI
2nd Oct 2025544 PMAQI
2nd Oct 2025555 PMAQI
2nd Oct 2025586 PMAQI
2nd Oct 2025547 PMAQI
2nd Oct 2025568 PMAQI
2nd Oct 2025549 PMAQI
2nd Oct 20255710 PMAQI
2nd Oct 20255411 PMAQI
3rd Oct 20255412 AMAQI
3rd Oct 2025511 AMAQI
3rd Oct 2025532 AMAQI
3rd Oct 2025543 AMAQI
3rd Oct 2025554 AMAQI
3rd Oct 2025535 AMAQI

23°C18/28°C

3rd Oct 2025526 AMAQI
3rd Oct 2025547 AMAQI
3rd Oct 2025548 AMAQI
3rd Oct 2025519 AMAQI
3rd Oct 20255210 AMAQI
3rd Oct 20255311 AMAQI
3rd Oct 20255412 PMAQI
3rd Oct 2025551 PMAQI
3rd Oct 2025552 PMAQI
3rd Oct 2025583 PMAQI
3rd Oct 2025604 PMAQI
3rd Oct 2025605 PMAQI
3rd Oct 2025626 PMAQI
3rd Oct 2025607 PMAQI
3rd Oct 2025538 PMAQI
3rd Oct 2025699 PMAQI
3rd Oct 20256910 PMAQI
3rd Oct 20256811 PMAQI
4th Oct 20256712 AMAQI
4th Oct 2025671 AMAQI
4th Oct 2025682 AMAQI
4th Oct 2025683 AMAQI
4th Oct 2025714 AMAQI
4th Oct 2025705 AMAQI

20°C19/21°C

4th Oct 2025706 AMAQI
4th Oct 2025717 AMAQI
4th Oct 2025738 AMAQI
4th Oct 2025719 AMAQI
4th Oct 20256810 AMAQI
4th Oct 20256611 AMAQI
4th Oct 20256812 PMAQI
4th Oct 2025691 PMAQI
4th Oct 2025652 PMAQI
4th Oct 2025583 PMAQI
4th Oct 2025584 PMAQI
4th Oct 2025545 PMAQI
4th Oct 2025546 PMAQI
4th Oct 2025527 PMAQI
4th Oct 2025518 PMAQI
4th Oct 2025499 PMAQI
4th Oct 20254910 PMAQI
4th Oct 20254711 PMAQI
5th Oct 20254612 AMAQI
5th Oct 2025461 AMAQI
5th Oct 2025452 AMAQI
5th Oct 2025483 AMAQI
5th Oct 2025474 AMAQI
5th Oct 2025465 AMAQI

24°C21/27°C

5th Oct 2025456 AMAQI
5th Oct 2025517 AMAQI
5th Oct 2025518 AMAQI
5th Oct 2025529 AMAQI
5th Oct 20254910 AMAQI
5th Oct 20255411 AMAQI
5th Oct 20255512 PMAQI
5th Oct 2025591 PMAQI
5th Oct 2025542 PMAQI
5th Oct 2025533 PMAQI
5th Oct 2025524 PMAQI
5th Oct 2025495 PMAQI
5th Oct 2025466 PMAQI
5th Oct 2025437 PMAQI
5th Oct 2025488 PMAQI
5th Oct 2025479 PMAQI
5th Oct 20254710 PMAQI
5th Oct 20255011 PMAQI
6th Oct 20256312 AMAQI
6th Oct 2025641 AMAQI
6th Oct 2025542 AMAQI
6th Oct 2025553 AMAQI
6th Oct 2025544 AMAQI
6th Oct 2025555 AMAQI

25°C22/29°C

6th Oct 2025546 AMAQI
6th Oct 2025527 AMAQI
6th Oct 2025528 AMAQI
6th Oct 2025469 AMAQI
6th Oct 20254610 AMAQI
6th Oct 20255311 AMAQI
6th Oct 20255312 PMAQI
6th Oct 2025531 PMAQI
6th Oct 2025552 PMAQI
6th Oct 2025593 PMAQI
6th Oct 2025604 PMAQI
6th Oct 2025645 PMAQI
6th Oct 2025656 PMAQI
6th Oct 2025667 PMAQI
6th Oct 2025648 PMAQI
6th Oct 2025619 PMAQI
6th Oct 20256310 PMAQI
6th Oct 20256211 PMAQI
7th Oct 20255612 AMAQI
7th Oct 2025531 AMAQI
7th Oct 2025572 AMAQI

24°C20/28°C

7th Oct 2025518 PMAQI
7th Oct 2025359 PMAQI
7th Oct 20256010 PMAQI
7th Oct 20256011 PMAQI
8th Oct 20255912 AMAQI
8th Oct 2025591 AMAQI
8th Oct 2025612 AMAQI
8th Oct 2025593 AMAQI
8th Oct 2025594 AMAQI
8th Oct 2025605 AMAQI

24°C20/29°C

8th Oct 2025616 AMAQI
8th Oct 2025637 AMAQI
8th Oct 2025608 AMAQI
8th Oct 2025579 AMAQI
8th Oct 20256010 AMAQI
8th Oct 20256411 AMAQI
8th Oct 20256312 PMAQI
8th Oct 2025631 PMAQI
8th Oct 2025662 PMAQI
8th Oct 2025663 PMAQI
8th Oct 2025644 PMAQI
8th Oct 2025665 PMAQI
8th Oct 2025676 PMAQI
8th Oct 2025637 PMAQI
8th Oct 2025638 PMAQI
8th Oct 2025559 PMAQI
8th Oct 20255410 PMAQI
8th Oct 20254211 PMAQI
9th Oct 20254712 AMAQI
9th Oct 2025511 AMAQI
9th Oct 2025532 AMAQI
9th Oct 2025543 AMAQI
9th Oct 2025544 AMAQI
9th Oct 2025535 AMAQI

24°C21/28°C

9th Oct 2025516 AMAQI
9th Oct 2025467 AMAQI
9th Oct 2025488 AMAQI
9th Oct 2025509 AMAQI
9th Oct 20255510 AMAQI
9th Oct 20255311 AMAQI
9th Oct 20255012 PMAQI
9th Oct 2025461 PMAQI
9th Oct 2025482 PMAQI
9th Oct 2025503 PMAQI
9th Oct 2025514 PMAQI
9th Oct 2025515 PMAQI
9th Oct 2025556 PMAQI
9th Oct 2025587 PMAQI
9th Oct 2025598 PMAQI
9th Oct 2025639 PMAQI
9th Oct 20256110 PMAQI
9th Oct 20255811 PMAQI
10th Oct 20255712 AMAQI
10th Oct 2025531 AMAQI
10th Oct 2025562 AMAQI
10th Oct 2025573 AMAQI
10th Oct 2025554 AMAQI
10th Oct 2025595 AMAQI

22°C19/26°C

10th Oct 2025536 AMAQI
10th Oct 2025487 AMAQI
10th Oct 2025548 AMAQI
10th Oct 2025559 AMAQI
10th Oct 20255810 AMAQI
10th Oct 20256011 AMAQI
10th Oct 20255912 PMAQI
10th Oct 2025621 PMAQI
10th Oct 2025592 PMAQI
10th Oct 2025613 PMAQI
10th Oct 2025624 PMAQI
10th Oct 2025655 PMAQI
10th Oct 2025676 PMAQI
10th Oct 2025687 PMAQI
10th Oct 2025708 PMAQI
10th Oct 2025679 PMAQI
10th Oct 20256510 PMAQI
10th Oct 20255911 PMAQI
11th Oct 20256012 AMAQI
11th Oct 2025631 AMAQI
11th Oct 2025622 AMAQI
11th Oct 2025633 AMAQI
11th Oct 2025624 AMAQI
11th Oct 2025635 AMAQI

22°C17/28°C

11th Oct 2025626 AMAQI
11th Oct 2025617 AMAQI
11th Oct 2025608 AMAQI
11th Oct 2025639 AMAQI
11th Oct 20256410 AMAQI
11th Oct 20256611 AMAQI
11th Oct 20256812 PMAQI
11th Oct 2025631 PMAQI
11th Oct 2025612 PMAQI
11th Oct 2025623 PMAQI
11th Oct 2025634 PMAQI
11th Oct 2025625 PMAQI
11th Oct 2025626 PMAQI
11th Oct 2025687 PMAQI
11th Oct 2025678 PMAQI
11th Oct 2025679 PMAQI
11th Oct 20257010 PMAQI
11th Oct 20258011 PMAQI
12th Oct 20257512 AMAQI
12th Oct 2025701 AMAQI
12th Oct 2025692 AMAQI
12th Oct 2025673 AMAQI
12th Oct 2025644 AMAQI
12th Oct 2025635 AMAQI

24°C19/30°C

12th Oct 2025586 AMAQI
12th Oct 2025597 AMAQI
12th Oct 2025558 AMAQI
12th Oct 2025559 AMAQI
12th Oct 20255610 AMAQI
12th Oct 20256311 AMAQI
12th Oct 20256612 PMAQI
12th Oct 2025621 PMAQI
12th Oct 2025642 PMAQI
12th Oct 2025643 PMAQI
12th Oct 2025614 PMAQI
12th Oct 2025635 PMAQI
12th Oct 2025636 PMAQI
12th Oct 2025707 PMAQI
12th Oct 2025698 PMAQI
12th Oct 2025729 PMAQI
12th Oct 20257110 PMAQI
12th Oct 20257211 PMAQI
13th Oct 20256612 AMAQI
13th Oct 2025601 AMAQI
13th Oct 2025582 AMAQI
13th Oct 2025593 AMAQI
13th Oct 2025604 AMAQI
13th Oct 2025575 AMAQI

24°C21/29°C

13th Oct 2025576 AMAQI
6 AM
13th Oct 2025597 AMAQI
13th Oct 2025608 AMAQI
13th Oct 2025579 AMAQI
13th Oct 20255910 AMAQI
13th Oct 20256011 AMAQI
13th Oct 20256012 PMAQI
12 PM
13th Oct 2025641 PMAQI
13th Oct 2025612 PMAQI
6 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 8 AM

39AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
9 AM - 6 PM

39AQI

10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 AM (Avg. 39), while the lowest AQI was between 9 AM to 6 PM (Avg. 39).
Night time
Avg. Highest Time
7 PM - 11 PM

41AQI

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

40AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 41), while the lowest AQI was between 12 AM to 5 AM (Avg. 40).

2025 Days Vs Air Quality

Omachi, Saga, Japan

2025

76%

216

24%

69

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

Good
216 Days
Moderate
69 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 76%

Health Risk Level:

Low

In 2025, 76% 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

Omachi, Saga, 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
36AQI
2nd January 2025
44AQI
3rd January 2025
36AQI
4th January 2025
38AQI
5th January 2025
39AQI
6th January 2025
54AQI
7th January 2025
32AQI
8th January 2025
42AQI
9th January 2025
30AQI
10th January 2025
34AQI
11th January 2025
34AQI
12th January 2025
37AQI
13th January 2025
44AQI
14th January 2025
51AQI
15th January 2025
47AQI
16th January 2025
47AQI
17th January 2025
54AQI
18th January 2025
57AQI
19th January 2025
56AQI
20th January 2025
66AQI
21st January 2025
76AQI
22nd January 2025
82AQI
23rd January 2025
70AQI
24th January 2025
73AQI
25th January 2025
47AQI
26th January 2025
44AQI
27th January 2025
45AQI
28th January 2025
37AQI
29th January 2025
35AQI
30th January 2025
38AQI
31st January 2025
49AQI
1st February 2025
43AQI
2nd February 2025
36AQI
3rd February 2025
45AQI
4th February 2025
32AQI
5th February 2025
40AQI
6th February 2025
32AQI
7th February 2025
38AQI
8th February 2025
31AQI
9th February 2025
32AQI
10th February 2025
31AQI
11th February 2025
43AQI
12th February 2025
43AQI
13th February 2025
36AQI
14th February 2025
43AQI
15th February 2025
33AQI
16th February 2025
40AQI
17th February 2025
42AQI
18th February 2025
35AQI
19th February 2025
37AQI
20th February 2025
36AQI
21st February 2025
34AQI
22nd February 2025
40AQI
23rd February 2025
40AQI
24th February 2025
37AQI
25th February 2025
40AQI
26th February 2025
45AQI
27th February 2025
65AQI
28th February 2025
57AQI
1st March 2025
60AQI
2nd March 2025
38AQI
3rd March 2025
42AQI
4th March 2025
30AQI
5th March 2025
33AQI
6th March 2025
31AQI
7th March 2025
36AQI
8th March 2025
41AQI
9th March 2025
45AQI
10th March 2025
49AQI
11th March 2025
49AQI
12th March 2025
54AQI
13th March 2025
56AQI
14th March 2025
40AQI
15th March 2025
32AQI
16th March 2025
30AQI
17th March 2025
50AQI
18th March 2025
47AQI
19th March 2025
43AQI
20th March 2025
56AQI
21st March 2025
56AQI
22nd March 2025
64AQI
23rd March 2025
64AQI
24th March 2025
55AQI
25th March 2025
64AQI
26th March 2025
61AQI
27th March 2025
54AQI
28th March 2025
62AQI
29th March 2025
53AQI
30th March 2025
41AQI
31st March 2025
44AQI
1st April 2025
44AQI
2nd April 2025
36AQI
3rd April 2025
38AQI
4th April 2025
39AQI
5th April 2025
45AQI
6th April 2025
44AQI
7th April 2025
44AQI
8th April 2025
41AQI
9th April 2025
57AQI
10th April 2025
47AQI
11th April 2025
59AQI
12th April 2025
53AQI
13th April 2025
52AQI
14th April 2025
54AQI
15th April 2025
34AQI
16th April 2025
49AQI
17th April 2025
43AQI
18th April 2025
51AQI
19th April 2025
46AQI
20th April 2025
41AQI
21st April 2025
40AQI
22nd April 2025
37AQI
23rd April 2025
25AQI
24th April 2025
37AQI
25th April 2025
50AQI
26th April 2025
50AQI
27th April 2025
52AQI
28th April 2025
43AQI
29th April 2025
51AQI
30th April 2025
53AQI
1st May 2025
47AQI
2nd May 2025
42AQI
3rd May 2025
45AQI
4th May 2025
43AQI
5th May 2025
44AQI
6th May 2025
41AQI
7th May 2025
37AQI
8th May 2025
47AQI
9th May 2025
34AQI
10th May 2025
39AQI
11th May 2025
49AQI
12th May 2025
54AQI
13th May 2025
58AQI
14th May 2025
61AQI
15th May 2025
57AQI
16th May 2025
63AQI
17th May 2025
40AQI
18th May 2025
52AQI
19th May 2025
53AQI
20th May 2025
42AQI
21st May 2025
32AQI
22nd May 2025
36AQI
23rd May 2025
43AQI
24th May 2025
26AQI
25th May 2025
34AQI
26th May 2025
38AQI
27th May 2025
44AQI
28th May 2025
50AQI
29th May 2025
52AQI
30th May 2025
46AQI
31st May 2025
44AQI
1st June 2025
50AQI
2nd June 2025
55AQI
3rd June 2025
38AQI
4th June 2025
47AQI
5th June 2025
48AQI
6th June 2025
53AQI
7th June 2025
68AQI
8th June 2025
66AQI
9th June 2025
40AQI
10th June 2025
30AQI
11th June 2025
39AQI
12th June 2025
38AQI
13th June 2025
34AQI
14th June 2025
28AQI
15th June 2025
27AQI
16th June 2025
28AQI
17th June 2025
28AQI
18th June 2025
31AQI
19th June 2025
33AQI
20th June 2025
31AQI
21st June 2025
28AQI
22nd June 2025
24AQI
23rd June 2025
21AQI
24th June 2025
22AQI
25th June 2025
23AQI
26th June 2025
26AQI
27th June 2025
28AQI
28th June 2025
29AQI
29th June 2025
30AQI
30th June 2025
36AQI
1st July 2025
51AQI
2nd July 2025
58AQI
3rd July 2025
62AQI
4th July 2025
63AQI
5th July 2025
57AQI
6th July 2025
51AQI
7th July 2025
50AQI
8th July 2025
53AQI
9th July 2025
57AQI
10th July 2025
56AQI
11th July 2025
49AQI
12th July 2025
47AQI
13th July 2025
45AQI
14th July 2025
42AQI
15th July 2025
47AQI
16th July 2025
50AQI
17th July 2025
52AQI
18th July 2025
39AQI
19th July 2025
38AQI
20th July 2025
33AQI
21st July 2025
37AQI
22nd July 2025
42AQI
23rd July 2025
44AQI
24th July 2025
39AQI
25th July 2025
32AQI
26th July 2025
29AQI
27th July 2025
26AQI
28th July 2025
26AQI
29th July 2025
26AQI
30th July 2025
28AQI
31st July 2025
33AQI
1st August 2025
52AQI
2nd August 2025
52AQI
3rd August 2025
51AQI
4th August 2025
45AQI
5th August 2025
46AQI
6th August 2025
48AQI
7th August 2025
50AQI
8th August 2025
43AQI
9th August 2025
35AQI
10th August 2025
40AQI
11th August 2025
33AQI
12th August 2025
36AQI
13th August 2025
39AQI
14th August 2025
42AQI
15th August 2025
44AQI
16th August 2025
43AQI
17th August 2025
41AQI
18th August 2025
48AQI
19th August 2025
49AQI
20th August 2025
44AQI
21st August 2025
41AQI
22nd August 2025
49AQI
23rd August 2025
45AQI
24th August 2025
39AQI
25th August 2025
39AQI
26th August 2025
44AQI
27th August 2025
44AQI
28th August 2025
45AQI
29th August 2025
45AQI
30th August 2025
48AQI
31st August 2025
48AQI
1st September 2025
37AQI
2nd September 2025
41AQI
3rd September 2025
41AQI
4th September 2025
27AQI
5th September 2025
26AQI
6th September 2025
31AQI
7th September 2025
36AQI
8th September 2025
30AQI
9th September 2025
30AQI
10th September 2025
33AQI
11th September 2025
34AQI
12th September 2025
34AQI
13th September 2025
30AQI
14th September 2025
29AQI
15th September 2025
27AQI
16th September 2025
26AQI
17th September 2025
27AQI
18th September 2025
22AQI
19th September 2025
25AQI
20th September 2025
22AQI
21st September 2025
20AQI
22nd September 2025
25AQI
23rd September 2025
27AQI
24th September 2025
24AQI
25th September 2025
34AQI
26th September 2025
36AQI
27th September 2025
22AQI
28th September 2025
25AQI
29th September 2025
25AQI
30th September 2025
36AQI
1st October 2025
43AQI
2nd October 2025
59AQI
3rd October 2025
60AQI
4th October 2025
66AQI
5th October 2025
49AQI
6th October 2025
61AQI
7th October 2025
56AQI
8th October 2025
64AQI
9th October 2025
56AQI
10th October 2025
63AQI
11th October 2025
68AQI
12th October 2025
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

48AQI

40AQI

48AQI

45AQI

45AQI

36AQI

44AQI

44AQI

29AQI

60AQI

No. of days

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

202543AQI

21
10
26
2
18
13
21
9
23
8
26
4
21
10
28
3
30
2
10
216
69

Highest AQI recorded in

October

60AQI

Lowest AQI recorded in

September

29AQI

202440AQI

21
10
23
6
22
7
15
13
2
20
11
21
9
31
28
3
24
6
30
1
23
7
30
1
288
74
2

Highest AQI recorded in

April

53AQI

Lowest AQI recorded in

July

21AQI

202345AQI

18
11
2
14
14
14
17
13
17
16
15
21
9
25
6
26
5
27
3
25
6
18
11
18
13
235
127
2

Highest AQI recorded in

April

53AQI

Lowest AQI recorded in

August

31AQI

202246AQI

19
11
10
11
13
18
16
14
11
20
22
8
20
5
1
24
4
23
8
21
9
22
9
202
117

Highest AQI recorded in

May

55AQI

Lowest AQI recorded in

September

38AQI

202143AQI

18
13
16
12
16
15
15
7
17
14
15
15
30
1
31
28
2
21
10
17
13
16
15
240
117

Highest AQI recorded in

May

50AQI

Lowest AQI recorded in

August

28AQI

202043AQI

8
5
9
12
8
10
20
10
31
15
14
2
18
1
23
8
20
10
19
12
171
82
2

Highest AQI recorded in

April

52AQI

Lowest AQI recorded in

July

25AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2022(Avg.)
46AQI
Least Polluted Year Recorded
2024(Avg.)
40AQI

Omachi's annual 2025 AQI (43) shows an average percentage change of -0.6% (improved AQI) compared to previous years: 2020 (43), 2021 (43), 2022 (46), 2023 (45), 2024 (40).