Usuki, Oita, 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+
August Air Quality Analysis
Usuki, Oita, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2024
66AQILowest AQI recorded on
27th Aug 2023
19AQISame Day Analysis (3rd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 49 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2026
Usuki, Oita, Japan
AQI
Day
Night
.
5 AM2nd Aug 2026
7 PM
4 AM3rd Aug 2026
Day time
Avg. Highest Time
7AM2nd Aug
58AQI
Avg. Lowest Time
7PM2nd Aug
34AQI
Night time
Avg. Highest Time
10PM2nd Aug
52AQI
Avg. Lowest Time
8PM2nd Aug
45AQI
In the last 24 hours,
Usuki's AQI reached its highest point of 58 at 7 AM during the Day, while the lowest point, 34, was recorded at 7 PM during the Day between 2nd Aug and 3rd Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Usuki, Oita, Japan
JulAug
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 - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
5th Jul 2026205 AMAQI
5th Jul 2026226 AMAQI
5th Jul 2026217 AMAQI
5th Jul 2026228 AMAQI
5th Jul 2026169 AMAQI
5th Jul 20261710 AMAQI
5th Jul 20261711 AMAQI
5th Jul 20261812 PMAQI
5th Jul 2026171 PMAQI
5th Jul 2026152 PMAQI
5th Jul 2026183 PMAQI
5th Jul 2026184 PMAQI
5th Jul 2026145 PMAQI
5th Jul 2026156 PMAQI
5th Jul 2026157 PMAQI
5th Jul 2026218 PMAQI
5th Jul 2026249 PMAQI
5th Jul 20261710 PMAQI
5th Jul 20261811 PMAQI
6th Jul 20261912 AMAQI
6th Jul 2026251 AMAQI
6th Jul 2026272 AMAQI
6th Jul 2026253 AMAQI
6th Jul 2026204 AMAQI
24°C23/26°C
6th Jul 2026175 AMAQI
6th Jul 2026216 AMAQI
6th Jul 2026167 AMAQI
6th Jul 2026228 AMAQI
6th Jul 2026199 AMAQI
6th Jul 20262710 AMAQI
6th Jul 20263611 AMAQI
6th Jul 20261812 PMAQI
6th Jul 2026161 PMAQI
6th Jul 2026212 PMAQI
6th Jul 2026253 PMAQI
6th Jul 2026234 PMAQI
6th Jul 2026185 PMAQI
6th Jul 2026196 PMAQI
6th Jul 2026197 PMAQI
6th Jul 2026248 PMAQI
6th Jul 2026239 PMAQI
6th Jul 20262410 PMAQI
6th Jul 20262711 PMAQI
7th Jul 20261712 AMAQI
7th Jul 2026271 AMAQI
7th Jul 2026212 AMAQI
7th Jul 2026203 AMAQI
7th Jul 2026244 AMAQI
24°C23/27°C
7th Jul 2026265 AMAQI
7th Jul 2026286 AMAQI
7th Jul 2026277 AMAQI
7th Jul 2026298 AMAQI
7th Jul 2026249 AMAQI
7th Jul 20262510 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20262212 PMAQI
7th Jul 2026221 PMAQI
7th Jul 2026252 PMAQI
7th Jul 2026283 PMAQI
7th Jul 2026254 PMAQI
7th Jul 2026265 PMAQI
7th Jul 2026296 PMAQI
7th Jul 2026297 PMAQI
7th Jul 2026268 PMAQI
7th Jul 2026279 PMAQI
7th Jul 20262510 PMAQI
7th Jul 20262511 PMAQI
8th Jul 20262312 AMAQI
8th Jul 2026251 AMAQI
8th Jul 2026252 AMAQI
8th Jul 2026223 AMAQI
8th Jul 2026254 AMAQI
25°C23/28°C
8th Jul 2026225 AMAQI
8th Jul 2026296 AMAQI
8th Jul 2026237 AMAQI
8th Jul 2026208 AMAQI
8th Jul 2026219 AMAQI
8th Jul 20262510 AMAQI
8th Jul 20262411 AMAQI
8th Jul 20262412 PMAQI
8th Jul 2026241 PMAQI
8th Jul 2026252 PMAQI
8th Jul 2026253 PMAQI
8th Jul 2026264 PMAQI
8th Jul 2026235 PMAQI
8th Jul 2026236 PMAQI
8th Jul 2026197 PMAQI
8th Jul 2026178 PMAQI
8th Jul 2026189 PMAQI
8th Jul 20262310 PMAQI
8th Jul 20262611 PMAQI
9th Jul 20262712 AMAQI
9th Jul 2026241 AMAQI
9th Jul 2026272 AMAQI
9th Jul 2026193 AMAQI
9th Jul 2026234 AMAQI
25°C23/28°C
9th Jul 2026215 AMAQI
9th Jul 2026176 AMAQI
9th Jul 2026267 AMAQI
9th Jul 2026188 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20262110 AMAQI
9th Jul 20262111 AMAQI
9th Jul 20261612 PMAQI
9th Jul 2026171 PMAQI
9th Jul 2026242 PMAQI
9th Jul 2026193 PMAQI
9th Jul 2026244 PMAQI
9th Jul 2026235 PMAQI
9th Jul 2026226 PMAQI
9th Jul 2026237 PMAQI
9th Jul 2026238 PMAQI
9th Jul 2026209 PMAQI
9th Jul 20262510 PMAQI
9th Jul 20262611 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026281 AMAQI
10th Jul 2026262 AMAQI
10th Jul 2026253 AMAQI
10th Jul 2026254 AMAQI
24°C22/27°C
10th Jul 2026245 AMAQI
10th Jul 2026266 AMAQI
10th Jul 2026267 AMAQI
10th Jul 2026288 AMAQI
10th Jul 2026269 AMAQI
10th Jul 20262710 AMAQI
10th Jul 20261211 AMAQI
10th Jul 20261612 PMAQI
10th Jul 2026221 PMAQI
10th Jul 2026222 PMAQI
10th Jul 2026223 PMAQI
10th Jul 2026204 PMAQI
10th Jul 2026275 PMAQI
10th Jul 2026276 PMAQI
10th Jul 2026307 PMAQI
10th Jul 2026278 PMAQI
10th Jul 2026259 PMAQI
10th Jul 20262610 PMAQI
10th Jul 20263111 PMAQI
11th Jul 20263112 AMAQI
11th Jul 2026321 AMAQI
11th Jul 2026252 AMAQI
11th Jul 2026233 AMAQI
11th Jul 2026204 AMAQI
25°C22/27°C
11th Jul 2026245 AMAQI
11th Jul 2026226 AMAQI
11th Jul 2026267 AMAQI
11th Jul 2026278 AMAQI
11th Jul 2026329 AMAQI
11th Jul 20262510 AMAQI
11th Jul 20262611 AMAQI
11th Jul 20262412 PMAQI
11th Jul 2026211 PMAQI
11th Jul 2026232 PMAQI
11th Jul 2026233 PMAQI
11th Jul 2026244 PMAQI
11th Jul 2026255 PMAQI
11th Jul 2026236 PMAQI
11th Jul 2026237 PMAQI
11th Jul 2026258 PMAQI
11th Jul 2026189 PMAQI
11th Jul 20261010 PMAQI
11th Jul 20262911 PMAQI
12th Jul 20262512 AMAQI
12th Jul 2026261 AMAQI
12th Jul 2026252 AMAQI
12th Jul 2026233 AMAQI
12th Jul 2026234 AMAQI
26°C23/29°C
12th Jul 2026245 AMAQI
12th Jul 2026246 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026318 AMAQI
12th Jul 2026309 AMAQI
12th Jul 20262910 AMAQI
12th Jul 20262711 AMAQI
12th Jul 20262512 PMAQI
12th Jul 2026251 PMAQI
12th Jul 2026252 PMAQI
12th Jul 2026223 PMAQI
12th Jul 2026244 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026276 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026289 PMAQI
12th Jul 20262910 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20262812 AMAQI
13th Jul 2026281 AMAQI
13th Jul 2026292 AMAQI
13th Jul 2026273 AMAQI
13th Jul 2026264 AMAQI
27°C23/31°C
13th Jul 2026295 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026267 AMAQI
13th Jul 2026298 AMAQI
13th Jul 2026299 AMAQI
13th Jul 20263010 AMAQI
13th Jul 20263811 AMAQI
13th Jul 20263312 PMAQI
13th Jul 2026311 PMAQI
13th Jul 2026242 PMAQI
13th Jul 2026253 PMAQI
13th Jul 2026334 PMAQI
13th Jul 2026395 PMAQI
13th Jul 2026396 PMAQI
13th Jul 2026377 PMAQI
13th Jul 2026428 PMAQI
13th Jul 2026599 PMAQI
13th Jul 20265310 PMAQI
13th Jul 20264711 PMAQI
14th Jul 20265412 AMAQI
14th Jul 2026501 AMAQI
14th Jul 2026462 AMAQI
14th Jul 2026463 AMAQI
14th Jul 2026444 AMAQI
27°C25/30°C
14th Jul 2026415 AMAQI
14th Jul 2026356 AMAQI
14th Jul 2026277 AMAQI
14th Jul 2026268 AMAQI
14th Jul 2026259 AMAQI
14th Jul 20262810 AMAQI
14th Jul 20262611 AMAQI
14th Jul 20262612 PMAQI
14th Jul 2026271 PMAQI
14th Jul 2026292 PMAQI
14th Jul 2026483 PMAQI
14th Jul 2026414 PMAQI
14th Jul 2026445 PMAQI
14th Jul 2026416 PMAQI
14th Jul 2026497 PMAQI
14th Jul 2026538 PMAQI
14th Jul 2026509 PMAQI
14th Jul 20265410 PMAQI
14th Jul 20265011 PMAQI
15th Jul 20264512 AMAQI
15th Jul 2026421 AMAQI
15th Jul 2026322 AMAQI
15th Jul 2026293 AMAQI
15th Jul 2026204 AMAQI
27°C24/31°C
15th Jul 2026215 AMAQI
15th Jul 2026146 AMAQI
15th Jul 2026187 AMAQI
15th Jul 2026228 AMAQI
15th Jul 2026219 AMAQI
15th Jul 20263310 AMAQI
15th Jul 20261711 AMAQI
15th Jul 20261912 PMAQI
15th Jul 2026181 PMAQI
15th Jul 2026172 PMAQI
15th Jul 2026183 PMAQI
15th Jul 2026204 PMAQI
15th Jul 2026235 PMAQI
15th Jul 2026206 PMAQI
15th Jul 2026177 PMAQI
15th Jul 2026178 PMAQI
15th Jul 2026159 PMAQI
15th Jul 20261810 PMAQI
15th Jul 20261811 PMAQI
16th Jul 20262012 AMAQI
16th Jul 2026201 AMAQI
16th Jul 2026202 AMAQI
16th Jul 2026233 AMAQI
16th Jul 2026224 AMAQI
28°C24/31°C
16th Jul 2026235 AMAQI
16th Jul 2026266 AMAQI
16th Jul 2026227 AMAQI
16th Jul 2026268 AMAQI
16th Jul 2026259 AMAQI
16th Jul 20262510 AMAQI
16th Jul 20263011 AMAQI
16th Jul 20263012 PMAQI
16th Jul 2026441 PMAQI
16th Jul 2026552 PMAQI
16th Jul 2026563 PMAQI
16th Jul 2026554 PMAQI
16th Jul 2026585 PMAQI
16th Jul 2026526 PMAQI
16th Jul 2026567 PMAQI
16th Jul 2026588 PMAQI
16th Jul 2026559 PMAQI
16th Jul 20264610 PMAQI
16th Jul 20265411 PMAQI
17th Jul 20265012 AMAQI
17th Jul 2026501 AMAQI
17th Jul 2026462 AMAQI
17th Jul 2026403 AMAQI
17th Jul 2026394 AMAQI
28°C25/31°C
17th Jul 2026435 AMAQI
17th Jul 2026396 AMAQI
17th Jul 2026347 AMAQI
17th Jul 2026358 AMAQI
17th Jul 2026379 AMAQI
17th Jul 20264410 AMAQI
17th Jul 20264111 AMAQI
17th Jul 20264412 PMAQI
17th Jul 2026451 PMAQI
17th Jul 2026422 PMAQI
17th Jul 2026413 PMAQI
17th Jul 2026514 PMAQI
17th Jul 2026625 PMAQI
17th Jul 2026646 PMAQI
17th Jul 2026627 PMAQI
17th Jul 2026638 PMAQI
17th Jul 2026629 PMAQI
17th Jul 20266610 PMAQI
17th Jul 20266611 PMAQI
18th Jul 20266412 AMAQI
18th Jul 2026611 AMAQI
18th Jul 2026642 AMAQI
18th Jul 2026613 AMAQI
18th Jul 2026584 AMAQI
26°C25/29°C
18th Jul 2026585 AMAQI
18th Jul 2026566 AMAQI
18th Jul 2026587 AMAQI
18th Jul 2026568 AMAQI
18th Jul 2026589 AMAQI
18th Jul 20266210 AMAQI
18th Jul 20266811 AMAQI
18th Jul 20266812 PMAQI
18th Jul 2026671 PMAQI
18th Jul 2026682 PMAQI
18th Jul 2026663 PMAQI
18th Jul 2026714 PMAQI
18th Jul 2026725 PMAQI
18th Jul 2026726 PMAQI
18th Jul 2026677 PMAQI
18th Jul 2026638 PMAQI
18th Jul 2026659 PMAQI
18th Jul 20268210 PMAQI
18th Jul 20268411 PMAQI
19th Jul 20267912 AMAQI
19th Jul 2026841 AMAQI
19th Jul 2026852 AMAQI
19th Jul 2026783 AMAQI
19th Jul 2026714 AMAQI
27°C25/31°C
19th Jul 2026625 AMAQI
19th Jul 2026686 AMAQI
19th Jul 2026707 AMAQI
19th Jul 2026678 AMAQI
19th Jul 2026669 AMAQI
19th Jul 20266910 AMAQI
19th Jul 20266811 AMAQI
19th Jul 20267312 PMAQI
19th Jul 2026751 PMAQI
19th Jul 2026632 PMAQI
19th Jul 2026643 PMAQI
19th Jul 2026604 PMAQI
19th Jul 2026605 PMAQI
19th Jul 2026606 PMAQI
19th Jul 2026677 PMAQI
19th Jul 2026798 PMAQI
19th Jul 2026859 PMAQI
19th Jul 20267710 PMAQI
19th Jul 20266211 PMAQI
20th Jul 20265812 AMAQI
20th Jul 2026561 AMAQI
20th Jul 2026432 AMAQI
20th Jul 2026443 AMAQI
20th Jul 2026444 AMAQI
27°C25/31°C
20th Jul 2026515 AMAQI
20th Jul 2026516 AMAQI
20th Jul 2026537 AMAQI
20th Jul 2026528 AMAQI
20th Jul 2026549 AMAQI
20th Jul 20265610 AMAQI
20th Jul 20266111 AMAQI
20th Jul 20266412 PMAQI
20th Jul 2026651 PMAQI
20th Jul 2026692 PMAQI
20th Jul 2026733 PMAQI
20th Jul 2026754 PMAQI
20th Jul 2026795 PMAQI
20th Jul 2026716 PMAQI
20th Jul 2026677 PMAQI
20th Jul 2026748 PMAQI
20th Jul 2026749 PMAQI
20th Jul 20267110 PMAQI
20th Jul 20266911 PMAQI
21st Jul 20267012 AMAQI
21st Jul 2026691 AMAQI
21st Jul 2026722 AMAQI
21st Jul 2026723 AMAQI
21st Jul 2026724 AMAQI
27°C26/30°C
21st Jul 2026755 AMAQI
21st Jul 2026766 AMAQI
21st Jul 2026797 AMAQI
21st Jul 2026848 AMAQI
21st Jul 2026839 AMAQI
21st Jul 20268110 AMAQI
21st Jul 20268811 AMAQI
21st Jul 2026871 PMAQI
21st Jul 2026882 PMAQI
21st Jul 2026903 PMAQI
21st Jul 2026894 PMAQI
21st Jul 2026885 PMAQI
21st Jul 2026886 PMAQI
21st Jul 20261047 PMAQI
21st Jul 2026688 PMAQI
21st Jul 2026679 PMAQI
21st Jul 20266910 PMAQI
21st Jul 20267011 PMAQI
22nd Jul 20267012 AMAQI
22nd Jul 2026731 AMAQI
22nd Jul 2026732 AMAQI
22nd Jul 2026733 AMAQI
22nd Jul 2026774 AMAQI
27°C25/30°C
22nd Jul 2026805 AMAQI
22nd Jul 2026786 AMAQI
22nd Jul 2026707 AMAQI
22nd Jul 2026648 AMAQI
22nd Jul 2026619 AMAQI
22nd Jul 20266210 AMAQI
22nd Jul 20266111 AMAQI
22nd Jul 20266012 PMAQI
22nd Jul 2026641 PMAQI
22nd Jul 2026642 PMAQI
22nd Jul 2026693 PMAQI
22nd Jul 2026684 PMAQI
22nd Jul 2026675 PMAQI
22nd Jul 2026626 PMAQI
22nd Jul 2026627 PMAQI
22nd Jul 2026578 PMAQI
22nd Jul 2026619 PMAQI
22nd Jul 20266410 PMAQI
22nd Jul 20267111 PMAQI
23rd Jul 20267012 AMAQI
23rd Jul 2026631 AMAQI
23rd Jul 2026582 AMAQI
23rd Jul 2026653 AMAQI
23rd Jul 2026584 AMAQI
28°C25/30°C
23rd Jul 2026575 AMAQI
23rd Jul 2026566 AMAQI
23rd Jul 2026467 AMAQI
23rd Jul 2026488 AMAQI
23rd Jul 2026529 AMAQI
23rd Jul 20264510 AMAQI
23rd Jul 20264411 AMAQI
23rd Jul 20264812 PMAQI
23rd Jul 2026531 PMAQI
23rd Jul 2026602 PMAQI
23rd Jul 2026613 PMAQI
23rd Jul 2026684 PMAQI
23rd Jul 2026695 PMAQI
23rd Jul 2026676 PMAQI
23rd Jul 2026617 PMAQI
23rd Jul 2026638 PMAQI
23rd Jul 2026599 PMAQI
23rd Jul 20265110 PMAQI
23rd Jul 20264511 PMAQI
24th Jul 20264212 AMAQI
24th Jul 2026481 AMAQI
24th Jul 2026502 AMAQI
24th Jul 2026473 AMAQI
24th Jul 2026504 AMAQI
28°C25/31°C
24th Jul 2026555 AMAQI
24th Jul 2026606 AMAQI
24th Jul 2026577 AMAQI
24th Jul 2026568 AMAQI
24th Jul 2026599 AMAQI
24th Jul 20265710 AMAQI
24th Jul 20265111 AMAQI
24th Jul 20265312 PMAQI
24th Jul 2026571 PMAQI
24th Jul 2026692 PMAQI
24th Jul 2026713 PMAQI
24th Jul 2026644 PMAQI
24th Jul 2026665 PMAQI
24th Jul 2026626 PMAQI
24th Jul 2026517 PMAQI
24th Jul 2026488 PMAQI
24th Jul 2026539 PMAQI
24th Jul 20265110 PMAQI
24th Jul 20265011 PMAQI
25th Jul 20265212 AMAQI
25th Jul 2026541 AMAQI
25th Jul 2026502 AMAQI
25th Jul 2026543 AMAQI
25th Jul 2026524 AMAQI
28°C25/31°C
25th Jul 2026575 AMAQI
25th Jul 2026606 AMAQI
25th Jul 2026547 AMAQI
25th Jul 2026548 AMAQI
25th Jul 2026609 AMAQI
25th Jul 20264810 AMAQI
25th Jul 20265011 AMAQI
25th Jul 20265512 PMAQI
25th Jul 2026581 PMAQI
25th Jul 2026522 PMAQI
25th Jul 2026573 PMAQI
25th Jul 2026484 PMAQI
25th Jul 2026455 PMAQI
25th Jul 2026496 PMAQI
25th Jul 2026427 PMAQI
25th Jul 2026358 PMAQI
25th Jul 2026309 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20262611 PMAQI
26th Jul 20262812 AMAQI
26th Jul 2026261 AMAQI
26th Jul 2026242 AMAQI
26th Jul 2026243 AMAQI
26th Jul 2026264 AMAQI
28°C25/32°C
26th Jul 2026275 AMAQI
26th Jul 2026266 AMAQI
26th Jul 2026287 AMAQI
26th Jul 2026288 AMAQI
26th Jul 2026339 AMAQI
26th Jul 20262610 AMAQI
26th Jul 20263011 AMAQI
26th Jul 20262812 PMAQI
26th Jul 2026261 PMAQI
26th Jul 2026262 PMAQI
26th Jul 2026283 PMAQI
26th Jul 2026244 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026316 PMAQI
26th Jul 2026437 PMAQI
26th Jul 2026418 PMAQI
26th Jul 2026439 PMAQI
26th Jul 20263210 PMAQI
26th Jul 20263611 PMAQI
27th Jul 20263412 AMAQI
27th Jul 2026331 AMAQI
27th Jul 2026362 AMAQI
27th Jul 2026343 AMAQI
27th Jul 2026354 AMAQI
28°C25/32°C
27th Jul 2026325 AMAQI
27th Jul 2026326 AMAQI
27th Jul 2026377 AMAQI
27th Jul 2026358 AMAQI
27th Jul 2026369 AMAQI
27th Jul 20264010 AMAQI
27th Jul 20264511 AMAQI
27th Jul 20265112 PMAQI
27th Jul 2026411 PMAQI
27th Jul 2026402 PMAQI
27th Jul 2026423 PMAQI
27th Jul 2026434 PMAQI
27th Jul 2026385 PMAQI
27th Jul 2026436 PMAQI
27th Jul 2026457 PMAQI
27th Jul 2026438 PMAQI
27th Jul 2026419 PMAQI
27th Jul 20264010 PMAQI
27th Jul 20263811 PMAQI
28th Jul 20263612 AMAQI
28th Jul 2026391 AMAQI
28th Jul 2026382 AMAQI
28th Jul 2026413 AMAQI
28th Jul 2026374 AMAQI
29°C26/32°C
28th Jul 2026365 AMAQI
28th Jul 2026366 AMAQI
28th Jul 2026337 AMAQI
28th Jul 2026368 AMAQI
28th Jul 2026369 AMAQI
28th Jul 20263810 AMAQI
28th Jul 20264211 AMAQI
28th Jul 20264212 PMAQI
28th Jul 2026471 PMAQI
28th Jul 2026412 PMAQI
28th Jul 2026493 PMAQI
28th Jul 2026614 PMAQI
28th Jul 2026575 PMAQI
28th Jul 2026586 PMAQI
28th Jul 2026487 PMAQI
28th Jul 2026468 PMAQI
28th Jul 2026359 PMAQI
28th Jul 20263410 PMAQI
28th Jul 20263511 PMAQI
29th Jul 20263612 AMAQI
29th Jul 2026391 AMAQI
29th Jul 2026282 AMAQI
29th Jul 2026393 AMAQI
29th Jul 2026244 AMAQI
29°C26/32°C
29th Jul 2026255 AMAQI
29th Jul 2026266 AMAQI
29th Jul 2026237 AMAQI
29th Jul 2026238 AMAQI
29th Jul 2026269 AMAQI
29th Jul 20263210 AMAQI
29th Jul 20262411 AMAQI
29th Jul 20262412 PMAQI
29th Jul 2026241 PMAQI
29th Jul 2026242 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026224 PMAQI
29th Jul 2026245 PMAQI
29th Jul 2026246 PMAQI
29th Jul 2026277 PMAQI
29th Jul 2026288 PMAQI
29th Jul 2026319 PMAQI
29th Jul 20262810 PMAQI
29th Jul 20263011 PMAQI
30th Jul 20261912 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026172 AMAQI
30th Jul 2026173 AMAQI
30th Jul 2026184 AMAQI
27°C25/30°C
30th Jul 2026205 AMAQI
30th Jul 2026206 AMAQI
30th Jul 2026207 AMAQI
30th Jul 2026208 AMAQI
30th Jul 2026229 AMAQI
30th Jul 20262210 AMAQI
30th Jul 20262011 AMAQI
30th Jul 20262412 PMAQI
30th Jul 2026241 PMAQI
30th Jul 2026302 PMAQI
30th Jul 2026283 PMAQI
30th Jul 2026264 PMAQI
30th Jul 2026265 PMAQI
30th Jul 2026316 PMAQI
30th Jul 2026297 PMAQI
30th Jul 2026328 PMAQI
30th Jul 2026309 PMAQI
30th Jul 20263210 PMAQI
30th Jul 20263311 PMAQI
31st Jul 20263412 AMAQI
31st Jul 2026341 AMAQI
31st Jul 2026322 AMAQI
31st Jul 2026293 AMAQI
31st Jul 2026294 AMAQI
28°C25/33°C
31st Jul 2026295 AMAQI
31st Jul 2026316 AMAQI
31st Jul 2026307 AMAQI
31st Jul 2026348 AMAQI
31st Jul 2026339 AMAQI
31st Jul 20262710 AMAQI
31st Jul 20262911 AMAQI
31st Jul 20263112 PMAQI
31st Jul 2026361 PMAQI
31st Jul 2026352 PMAQI
31st Jul 2026353 PMAQI
31st Jul 2026334 PMAQI
31st Jul 2026355 PMAQI
31st Jul 2026346 PMAQI
31st Jul 2026417 PMAQI
31st Jul 2026418 PMAQI
31st Jul 2026409 PMAQI
31st Jul 20263710 PMAQI
31st Jul 20263711 PMAQI
1st Aug 20264012 AMAQI
1st Aug 2026421 AMAQI
1st Aug 2026432 AMAQI
1st Aug 2026443 AMAQI
1st Aug 2026384 AMAQI
28°C24/32°C
1st Aug 2026395 AMAQI
1st Aug 2026376 AMAQI
1st Aug 2026377 AMAQI
1st Aug 2026368 AMAQI
1st Aug 2026379 AMAQI
1st Aug 20263510 AMAQI
1st Aug 20263511 AMAQI
1st Aug 20263412 PMAQI
1st Aug 2026311 PMAQI
1st Aug 2026412 PMAQI
1st Aug 2026383 PMAQI
1st Aug 2026284 PMAQI
1st Aug 2026375 PMAQI
1st Aug 2026376 PMAQI
1st Aug 2026447 PMAQI
1st Aug 2026438 PMAQI
1st Aug 2026449 PMAQI
1st Aug 20264510 PMAQI
1st Aug 20264711 PMAQI
2nd Aug 20265812 AMAQI
2nd Aug 2026541 AMAQI
2nd Aug 2026512 AMAQI
2nd Aug 2026493 AMAQI
2nd Aug 2026474 AMAQI
29°C25/33°C
2nd Aug 2026495 AMAQI
2nd Aug 2026526 AMAQI
2nd Aug 2026587 AMAQI
2nd Aug 2026508 AMAQI
2nd Aug 2026539 AMAQI
2nd Aug 20265010 AMAQI
2nd Aug 20264811 AMAQI
2nd Aug 20265612 PMAQI
2nd Aug 2026491 PMAQI
2nd Aug 2026452 PMAQI
2nd Aug 2026473 PMAQI
2nd Aug 2026454 PMAQI
2nd Aug 2026445 PMAQI
2nd Aug 2026436 PMAQI
2nd Aug 2026347 PMAQI
2nd Aug 2026458 PMAQI
2nd Aug 2026509 PMAQI
2nd Aug 20265210 PMAQI
2nd Aug 20265011 PMAQI
3rd Aug 20265012 AMAQI
3rd Aug 2026491 AMAQI
3rd Aug 2026502 AMAQI
3rd Aug 2026523 AMAQI
3rd Aug 2026524 AMAQI
30°C26/33°C
3rd Aug 2026535 AMAQI
5 AM3rd Aug 2026466 AMAQI
3rd Aug 2026457 AMAQI
3rd Aug 2026478 AMAQI
3rd Aug 2026519 AMAQI
3rd Aug 20265310 AMAQI
3rd Aug 20265311 AMAQI
3rd Aug 20265912 PMAQI
12 PM3rd Aug 2026471 PMAQI
3rd Aug 2026512 PMAQI
3rd Aug 2026563 PMAQI
3rd Aug 2026484 PMAQI
3rd Aug 2026365 PMAQI
3rd Aug 2026456 PMAQI
3rd Aug 2026467 PMAQI
7 PM3rd Aug 2026538 PMAQI
3rd Aug 2026489 PMAQI
3rd Aug 20263910 PMAQI
3rd Aug 20264111 PMAQI
12 AM
4 AM
29°C26/31°C
Day time
Avg. Highest Time
3 PM - 7 PM
43AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
5 AM - 12 PM
38AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 7 PM (Avg. 43), while the lowest AQI was between 5 AM to 12 PM (Avg. 38).
Night time
Avg. Highest Time
8 PM - 11 PM
43AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
4 AM
37AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 43), while the lowest AQI was between 4 AM to 4 AM (Avg. 37).
2026 Days Vs Air Quality
Usuki, Oita, Japan
2026
86%
185
14%
30
Total number of days with different AQI categories in last 215 days in 2026 (150 days remaining)
Good
185 DaysModerate
30 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2026, 86% of 215 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
Usuki, Oita, Japan
AQI levels in 2026
AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
22AQI (US)
22AQI (US)
2nd January 2026
22AQI (US)
22AQI (US)
3rd January 2026
27AQI (US)
27AQI (US)
4th January 2026
34AQI (US)
34AQI (US)
5th January 2026
45AQI (US)
45AQI (US)
6th January 2026
31AQI (US)
31AQI (US)
7th January 2026
29AQI (US)
29AQI (US)
8th January 2026
37AQI (US)
37AQI (US)
9th January 2026
21AQI (US)
21AQI (US)
10th January 2026
24AQI (US)
24AQI (US)
11th January 2026
32AQI (US)
32AQI (US)
12th January 2026
26AQI (US)
26AQI (US)
13th January 2026
30AQI (US)
30AQI (US)
14th January 2026
28AQI (US)
28AQI (US)
15th January 2026
42AQI (US)
42AQI (US)
16th January 2026
52AQI (US)
52AQI (US)
17th January 2026
56AQI (US)
56AQI (US)
18th January 2026
61AQI (US)
61AQI (US)
19th January 2026
74AQI (US)
74AQI (US)
20th January 2026
39AQI (US)
39AQI (US)
21st January 2026
14AQI (US)
14AQI (US)
22nd January 2026
25AQI (US)
25AQI (US)
23rd January 2026
34AQI (US)
34AQI (US)
24th January 2026
32AQI (US)
32AQI (US)
25th January 2026
27AQI (US)
27AQI (US)
26th January 2026
23AQI (US)
23AQI (US)
27th January 2026
40AQI (US)
40AQI (US)
28th January 2026
24AQI (US)
24AQI (US)
29th January 2026
34AQI (US)
34AQI (US)
30th January 2026
30AQI (US)
30AQI (US)
31st January 2026
18AQI (US)
18AQI (US)
1st February 2026
42AQI (US)
42AQI (US)
2nd February 2026
40AQI (US)
40AQI (US)
3rd February 2026
35AQI (US)
35AQI (US)
4th February 2026
31AQI (US)
31AQI (US)
5th February 2026
41AQI (US)
41AQI (US)
6th February 2026
43AQI (US)
43AQI (US)
7th February 2026
36AQI (US)
36AQI (US)
8th February 2026
18AQI (US)
18AQI (US)
9th February 2026
38AQI (US)
38AQI (US)
10th February 2026
41AQI (US)
41AQI (US)
11th February 2026
46AQI (US)
46AQI (US)
12th February 2026
42AQI (US)
42AQI (US)
13th February 2026
50AQI (US)
50AQI (US)
14th February 2026
46AQI (US)
46AQI (US)
15th February 2026
46AQI (US)
46AQI (US)
16th February 2026
62AQI (US)
62AQI (US)
17th February 2026
21AQI (US)
21AQI (US)
18th February 2026
22AQI (US)
22AQI (US)
19th February 2026
56AQI (US)
56AQI (US)
20th February 2026
37AQI (US)
37AQI (US)
21st February 2026
35AQI (US)
35AQI (US)
22nd February 2026
40AQI (US)
40AQI (US)
23rd February 2026
41AQI (US)
41AQI (US)
24th February 2026
29AQI (US)
29AQI (US)
25th February 2026
20AQI (US)
20AQI (US)
26th February 2026
27AQI (US)
27AQI (US)
27th February 2026
50AQI (US)
50AQI (US)
28th February 2026
40AQI (US)
40AQI (US)
1st March 2026
41AQI (US)
41AQI (US)
2nd March 2026
64AQI (US)
64AQI (US)
3rd March 2026
31AQI (US)
31AQI (US)
4th March 2026
34AQI (US)
34AQI (US)
5th March 2026
44AQI (US)
44AQI (US)
6th March 2026
39AQI (US)
39AQI (US)
7th March 2026
44AQI (US)
44AQI (US)
8th March 2026
41AQI (US)
41AQI (US)
9th March 2026
40AQI (US)
40AQI (US)
10th March 2026
39AQI (US)
39AQI (US)
11th March 2026
32AQI (US)
32AQI (US)
12th March 2026
49AQI (US)
49AQI (US)
13th March 2026
41AQI (US)
41AQI (US)
14th March 2026
44AQI (US)
44AQI (US)
15th March 2026
59AQI (US)
59AQI (US)
16th March 2026
46AQI (US)
46AQI (US)
17th March 2026
40AQI (US)
40AQI (US)
18th March 2026
49AQI (US)
49AQI (US)
19th March 2026
31AQI (US)
31AQI (US)
20th March 2026
51AQI (US)
51AQI (US)
21st March 2026
39AQI (US)
39AQI (US)
22nd March 2026
47AQI (US)
47AQI (US)
23rd March 2026
22AQI (US)
22AQI (US)
24th March 2026
45AQI (US)
45AQI (US)
25th March 2026
40AQI (US)
40AQI (US)
26th March 2026
17AQI (US)
17AQI (US)
27th March 2026
41AQI (US)
41AQI (US)
28th March 2026
67AQI (US)
67AQI (US)
29th March 2026
76AQI (US)
76AQI (US)
30th March 2026
50AQI (US)
50AQI (US)
31st March 2026
17AQI (US)
17AQI (US)
1st April 2026
19AQI (US)
19AQI (US)
2nd April 2026
49AQI (US)
49AQI (US)
3rd April 2026
38AQI (US)
38AQI (US)
4th April 2026
35AQI (US)
35AQI (US)
5th April 2026
41AQI (US)
41AQI (US)
6th April 2026
39AQI (US)
39AQI (US)
7th April 2026
26AQI (US)
26AQI (US)
8th April 2026
25AQI (US)
25AQI (US)
9th April 2026
33AQI (US)
33AQI (US)
10th April 2026
43AQI (US)
43AQI (US)
11th April 2026
34AQI (US)
34AQI (US)
12th April 2026
36AQI (US)
36AQI (US)
13th April 2026
31AQI (US)
31AQI (US)
14th April 2026
32AQI (US)
32AQI (US)
15th April 2026
37AQI (US)
37AQI (US)
16th April 2026
28AQI (US)
28AQI (US)
17th April 2026
37AQI (US)
37AQI (US)
18th April 2026
30AQI (US)
30AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
32AQI (US)
32AQI (US)
21st April 2026
39AQI (US)
39AQI (US)
22nd April 2026
42AQI (US)
42AQI (US)
23rd April 2026
27AQI (US)
27AQI (US)
24th April 2026
22AQI (US)
22AQI (US)
25th April 2026
45AQI (US)
45AQI (US)
26th April 2026
48AQI (US)
48AQI (US)
27th April 2026
52AQI (US)
52AQI (US)
28th April 2026
52AQI (US)
52AQI (US)
29th April 2026
36AQI (US)
36AQI (US)
30th April 2026
17AQI (US)
17AQI (US)
1st May 2026
25AQI (US)
25AQI (US)
2nd May 2026
55AQI (US)
55AQI (US)
3rd May 2026
40AQI (US)
40AQI (US)
4th May 2026
21AQI (US)
21AQI (US)
5th May 2026
27AQI (US)
27AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
31AQI (US)
31AQI (US)
8th May 2026
29AQI (US)
29AQI (US)
9th May 2026
28AQI (US)
28AQI (US)
10th May 2026
29AQI (US)
29AQI (US)
11th May 2026
26AQI (US)
26AQI (US)
12th May 2026
31AQI (US)
31AQI (US)
13th May 2026
39AQI (US)
39AQI (US)
14th May 2026
33AQI (US)
33AQI (US)
15th May 2026
35AQI (US)
35AQI (US)
16th May 2026
78AQI (US)
78AQI (US)
17th May 2026
63AQI (US)
63AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
46AQI (US)
46AQI (US)
20th May 2026
60AQI (US)
60AQI (US)
21st May 2026
66AQI (US)
66AQI (US)
22nd May 2026
70AQI (US)
70AQI (US)
23rd May 2026
62AQI (US)
62AQI (US)
24th May 2026
63AQI (US)
63AQI (US)
25th May 2026
54AQI (US)
54AQI (US)
26th May 2026
41AQI (US)
41AQI (US)
27th May 2026
24AQI (US)
24AQI (US)
28th May 2026
32AQI (US)
32AQI (US)
29th May 2026
31AQI (US)
31AQI (US)
30th May 2026
30AQI (US)
30AQI (US)
31st May 2026
29AQI (US)
29AQI (US)
1st June 2026
27AQI (US)
27AQI (US)
2nd June 2026
26AQI (US)
26AQI (US)
3rd June 2026
26AQI (US)
26AQI (US)
4th June 2026
24AQI (US)
24AQI (US)
5th June 2026
22AQI (US)
22AQI (US)
6th June 2026
23AQI (US)
23AQI (US)
7th June 2026
21AQI (US)
21AQI (US)
8th June 2026
22AQI (US)
22AQI (US)
9th June 2026
23AQI (US)
23AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
26AQI (US)
26AQI (US)
12th June 2026
25AQI (US)
25AQI (US)
13th June 2026
27AQI (US)
27AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
23AQI (US)
23AQI (US)
16th June 2026
25AQI (US)
25AQI (US)
17th June 2026
23AQI (US)
23AQI (US)
18th June 2026
26AQI (US)
26AQI (US)
19th June 2026
27AQI (US)
27AQI (US)
20th June 2026
24AQI (US)
24AQI (US)
21st June 2026
21AQI (US)
21AQI (US)
22nd June 2026
20AQI (US)
20AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
21AQI (US)
21AQI (US)
25th June 2026
27AQI (US)
27AQI (US)
26th June 2026
27AQI (US)
27AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
29AQI (US)
29AQI (US)
29th June 2026
28AQI (US)
28AQI (US)
30th June 2026
36AQI (US)
36AQI (US)
1st July 2026
28AQI (US)
28AQI (US)
2nd July 2026
15AQI (US)
15AQI (US)
3rd July 2026
27AQI (US)
27AQI (US)
4th July 2026
26AQI (US)
26AQI (US)
5th July 2026
19AQI (US)
19AQI (US)
6th July 2026
22AQI (US)
22AQI (US)
7th July 2026
25AQI (US)
25AQI (US)
8th July 2026
23AQI (US)
23AQI (US)
9th July 2026
22AQI (US)
22AQI (US)
10th July 2026
25AQI (US)
25AQI (US)
11th July 2026
24AQI (US)
24AQI (US)
12th July 2026
27AQI (US)
27AQI (US)
13th July 2026
34AQI (US)
34AQI (US)
14th July 2026
40AQI (US)
40AQI (US)
15th July 2026
22AQI (US)
22AQI (US)
16th July 2026
38AQI (US)
38AQI (US)
17th July 2026
49AQI (US)
49AQI (US)
18th July 2026
66AQI (US)
66AQI (US)
19th July 2026
70AQI (US)
70AQI (US)
20th July 2026
61AQI (US)
61AQI (US)
21st July 2026
80AQI (US)
80AQI (US)
22nd July 2026
67AQI (US)
67AQI (US)
23rd July 2026
57AQI (US)
57AQI (US)
24th July 2026
55AQI (US)
55AQI (US)
25th July 2026
49AQI (US)
49AQI (US)
26th July 2026
30AQI (US)
30AQI (US)
27th July 2026
39AQI (US)
39AQI (US)
28th July 2026
42AQI (US)
42AQI (US)
29th July 2026
27AQI (US)
27AQI (US)
30th July 2026
24AQI (US)
24AQI (US)
31st July 2026
34AQI (US)
34AQI (US)
1st August 2026
39AQI (US)
39AQI (US)
2nd August 2026
49AQI (US)
49AQI (US)
3rd August 2026
49AQI (US)
49AQI (US)
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
33AQI (US)
38AQI (US)
43AQI (US)
35AQI (US)
41AQI (US)
25AQI (US)
38AQI (US)
46AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202636AQI (US)
27
4
26
2
26
5
28
2
21
10
30
24
7
3
185
30
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202542AQI (US)
27
4
26
2
20
11
25
5
26
5
24
6
19
12
31
30
13
18
23
7
26
5
290
75
Highest AQI (US) recorded in
October52AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202436AQI (US)
31
27
2
30
1
27
3
28
3
30
29
2
25
6
26
4
31
27
3
31
342
24
Highest AQI (US) recorded in
April43AQI (US)
Lowest AQI (US) recorded in
December31AQI (US)
202337AQI (US)
28
2
27
1
24
7
21
9
26
5
24
6
30
31
28
2
30
1
28
1
31
328
34
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202238AQI (US)
27
3
19
2
23
8
27
3
23
8
25
5
20
4
2
1
29
28
3
28
2
31
282
39
Highest AQI (US) recorded in
May47AQI (US)
Lowest AQI (US) recorded in
December33AQI (US)
202136AQI (US)
28
3
25
3
25
4
18
3
27
4
20
10
27
4
30
1
25
5
30
1
24
6
31
310
44
Highest AQI (US) recorded in
June44AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202039AQI (US)
10
3
16
5
13
5
20
10
27
4
16
14
1
18
1
29
2
28
2
26
5
203
51
1
Highest AQI (US) recorded in
August53AQI (US)
Lowest AQI (US) recorded in
December32AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
42AQI (US)Least Polluted Year Recorded
2021(Avg.)
36AQI (US)Usuki's annual 2026 AQI (US) (36) shows an average percentage change of -4.9% (improved AQI (US)) compared to previous years: 2020 (39), 2021 (36), 2022 (38), 2023 (37), 2024 (36), 2025 (42).
