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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Koja, Okinawa, 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+

June Air Quality Analysis

Koja, Okinawa, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Jun 2023
70AQI
Lowest AQI recorded on
22nd Jun 2022
10AQI

Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 32 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 2nd Jun - 3rd Jun 2026

Koja, Okinawa, Japan

AQI
Day
Night
.

5 AM2nd Jun 2026

7 PM

4 AM3rd Jun 2026

Day time
Avg. Highest Time
2PM2nd Jun

53AQI

Avg. Lowest Time
7AM2nd Jun

12AQI

Night time
Avg. Highest Time
1AM3rd Jun

35AQI

Avg. Lowest Time
9PM2nd Jun

28AQI

In the last 24 hours,

Koja's AQI reached its highest point of 53 at 2 PM during the Day, while the lowest point, 12, was recorded at 7 AM during the Day between 2nd Jun and 3rd Jun 2026.

Day & Night AQI Trend : May - Jun 2026

Koja, Okinawa, Japan

MayJun
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 May 2026215 AMAQI
5th May 2026176 AMAQI
5th May 202687 AMAQI
5th May 202688 AMAQI
5th May 2026129 AMAQI
5th May 20261710 AMAQI
5th May 20261411 AMAQI
5th May 20261712 PMAQI
5th May 2026141 PMAQI
5th May 2026122 PMAQI
5th May 2026193 PMAQI
5th May 2026214 PMAQI
5th May 2026195 PMAQI
5th May 2026146 PMAQI
5th May 2026107 PMAQI
5th May 202688 PMAQI
5th May 2026129 PMAQI
5th May 2026810 PMAQI
5th May 20261011 PMAQI
6th May 2026912 AMAQI
6th May 202681 AMAQI
6th May 202682 AMAQI
6th May 202683 AMAQI
6th May 202684 AMAQI

18°C16/18°C

6th May 2026125 AMAQI
6th May 2026106 AMAQI
6th May 2026107 AMAQI
6th May 202678 AMAQI
6th May 202689 AMAQI
6th May 2026810 AMAQI
6th May 2026811 AMAQI
6th May 2026812 PMAQI
6th May 202671 PMAQI
6th May 2026142 PMAQI
6th May 2026243 PMAQI
6th May 2026244 PMAQI
6th May 2026255 PMAQI
6th May 2026146 PMAQI
6th May 2026167 PMAQI
6th May 2026158 PMAQI
6th May 2026249 PMAQI
6th May 20262110 PMAQI
6th May 20262211 PMAQI
7th May 20263812 AMAQI
7th May 2026421 AMAQI
7th May 2026492 AMAQI
7th May 2026463 AMAQI
7th May 2026514 AMAQI

21°C20/21°C

7th May 2026425 AMAQI
7th May 2026236 AMAQI
7th May 2026347 AMAQI
7th May 2026278 AMAQI
7th May 2026329 AMAQI
7th May 20264910 AMAQI
7th May 20263911 AMAQI
7th May 20261612 PMAQI
7th May 2026121 PMAQI
7th May 2026212 PMAQI
7th May 202683 PMAQI
7th May 2026104 PMAQI
7th May 2026245 PMAQI
7th May 2026306 PMAQI
7th May 2026247 PMAQI
7th May 2026188 PMAQI
7th May 2026169 PMAQI
7th May 20262610 PMAQI
7th May 20261711 PMAQI
8th May 20262412 AMAQI
8th May 2026121 AMAQI
8th May 2026262 AMAQI
8th May 2026253 AMAQI
8th May 2026404 AMAQI

23°C21/25°C

8th May 2026405 AMAQI
8th May 2026346 AMAQI
8th May 2026267 AMAQI
8th May 2026318 AMAQI
8th May 2026309 AMAQI
8th May 20264410 AMAQI
8th May 20264011 AMAQI
8th May 20262512 PMAQI
8th May 2026161 PMAQI
8th May 2026182 PMAQI
8th May 2026303 PMAQI
8th May 2026264 PMAQI
8th May 2026215 PMAQI
8th May 2026206 PMAQI
8th May 2026147 PMAQI
8th May 2026148 PMAQI
8th May 202689 PMAQI
8th May 20262510 PMAQI
8th May 20262211 PMAQI
9th May 20262212 AMAQI
9th May 2026201 AMAQI
9th May 2026202 AMAQI
9th May 2026223 AMAQI
9th May 2026384 AMAQI

23°C21/25°C

9th May 2026365 AMAQI
9th May 2026106 AMAQI
9th May 2026207 AMAQI
9th May 2026248 AMAQI
9th May 2026369 AMAQI
9th May 20265810 AMAQI
9th May 20264611 AMAQI
9th May 20262412 PMAQI
9th May 2026181 PMAQI
9th May 2026102 PMAQI
9th May 2026183 PMAQI
9th May 202694 PMAQI
9th May 2026225 PMAQI
9th May 2026206 PMAQI
9th May 2026187 PMAQI
9th May 2026128 PMAQI
9th May 2026279 PMAQI
9th May 20262410 PMAQI
9th May 20262411 PMAQI
10th May 20263212 AMAQI
10th May 2026241 AMAQI
10th May 2026322 AMAQI
10th May 2026213 AMAQI
10th May 2026424 AMAQI

18°C17/19°C

10th May 2026505 AMAQI
10th May 2026126 AMAQI
10th May 2026127 AMAQI
10th May 2026148 AMAQI
10th May 2026449 AMAQI
10th May 20264810 AMAQI
10th May 20262611 AMAQI
10th May 20261112 PMAQI
10th May 2026101 PMAQI
10th May 2026122 PMAQI
10th May 2026143 PMAQI
10th May 2026174 PMAQI
10th May 2026285 PMAQI
10th May 2026226 PMAQI
10th May 2026227 PMAQI
10th May 2026178 PMAQI
10th May 2026129 PMAQI
10th May 20261210 PMAQI
10th May 20262011 PMAQI
11th May 20262212 AMAQI
11th May 2026281 AMAQI
11th May 2026192 AMAQI
11th May 2026243 AMAQI
11th May 2026484 AMAQI

21°C20/22°C

11th May 2026365 AMAQI
11th May 2026216 AMAQI
11th May 2026267 AMAQI
11th May 2026348 AMAQI
11th May 2026389 AMAQI
11th May 20265810 AMAQI
11th May 20264511 AMAQI
11th May 20261812 PMAQI
11th May 202681 PMAQI
11th May 2026162 PMAQI
11th May 2026263 PMAQI
11th May 2026244 PMAQI
11th May 2026245 PMAQI
11th May 2026186 PMAQI
11th May 2026247 PMAQI
11th May 2026228 PMAQI
11th May 2026129 PMAQI
11th May 20261210 PMAQI
11th May 20262411 PMAQI
12th May 20263212 AMAQI
12th May 2026321 AMAQI
12th May 2026292 AMAQI
12th May 2026323 AMAQI
12th May 2026314 AMAQI

22°C21/23°C

12th May 2026345 AMAQI
12th May 2026406 AMAQI
12th May 2026337 AMAQI
12th May 2026298 AMAQI
12th May 2026409 AMAQI
12th May 20266610 AMAQI
12th May 20264011 AMAQI
12th May 20262412 PMAQI
12th May 2026201 PMAQI
12th May 2026232 PMAQI
12th May 2026263 PMAQI
12th May 2026324 PMAQI
12th May 2026305 PMAQI
12th May 2026376 PMAQI
12th May 2026367 PMAQI
12th May 2026198 PMAQI
12th May 2026209 PMAQI
12th May 20262510 PMAQI
12th May 20262711 PMAQI
13th May 20265512 AMAQI
13th May 2026501 AMAQI
13th May 2026442 AMAQI
13th May 2026603 AMAQI
13th May 2026724 AMAQI

22°C22/23°C

13th May 2026695 AMAQI
13th May 2026566 AMAQI
13th May 2026367 AMAQI
13th May 2026218 AMAQI
13th May 2026239 AMAQI
13th May 20261910 AMAQI
13th May 20261711 AMAQI
13th May 20261912 PMAQI
13th May 2026141 PMAQI
13th May 2026112 PMAQI
13th May 2026463 PMAQI
13th May 2026304 PMAQI
13th May 2026305 PMAQI
13th May 2026246 PMAQI
13th May 2026307 PMAQI
13th May 2026228 PMAQI
13th May 2026329 PMAQI
13th May 20263410 PMAQI
13th May 20262511 PMAQI
14th May 20263612 AMAQI
14th May 2026401 AMAQI
14th May 2026462 AMAQI
14th May 2026533 AMAQI
14th May 2026664 AMAQI

23°C22/24°C

14th May 2026625 AMAQI
14th May 2026406 AMAQI
14th May 2026247 AMAQI
14th May 2026278 AMAQI
14th May 2026409 AMAQI
14th May 20265410 AMAQI
14th May 20264011 AMAQI
14th May 20263212 PMAQI
14th May 2026301 PMAQI
14th May 2026442 PMAQI
14th May 2026323 PMAQI
14th May 2026254 PMAQI
14th May 2026275 PMAQI
14th May 2026276 PMAQI
14th May 2026277 PMAQI
14th May 2026348 PMAQI
14th May 2026279 PMAQI
14th May 20263210 PMAQI
14th May 20262511 PMAQI
15th May 20263212 AMAQI
15th May 2026361 AMAQI
15th May 2026322 AMAQI
15th May 2026363 AMAQI
15th May 2026444 AMAQI

22°C22/23°C

15th May 2026315 AMAQI
15th May 2026236 AMAQI
15th May 2026267 AMAQI
15th May 2026338 AMAQI
15th May 2026469 AMAQI
15th May 20265110 AMAQI
15th May 20264211 AMAQI
15th May 20262212 PMAQI
15th May 2026321 PMAQI
15th May 2026332 PMAQI
15th May 2026403 PMAQI
15th May 2026404 PMAQI
15th May 2026305 PMAQI
15th May 2026306 PMAQI
15th May 2026387 PMAQI
15th May 2026428 PMAQI
15th May 2026279 PMAQI
15th May 20264210 PMAQI
15th May 20264211 PMAQI
16th May 20265012 AMAQI
16th May 2026701 AMAQI
16th May 2026742 AMAQI
16th May 2026883 AMAQI
16th May 2026884 AMAQI

23°C22/24°C

16th May 2026835 AMAQI
16th May 2026816 AMAQI
16th May 2026807 AMAQI
16th May 2026948 AMAQI
16th May 2026969 AMAQI
16th May 20268010 AMAQI
16th May 20268511 AMAQI
16th May 20269012 PMAQI
16th May 2026991 PMAQI
16th May 2026982 PMAQI
16th May 2026983 PMAQI
16th May 20261024 PMAQI
16th May 2026835 PMAQI
16th May 2026786 PMAQI
16th May 2026797 PMAQI
16th May 2026838 PMAQI
16th May 2026889 PMAQI
16th May 20269210 PMAQI
16th May 20269011 PMAQI
17th May 20268712 AMAQI
17th May 2026731 AMAQI
17th May 2026812 AMAQI
17th May 2026853 AMAQI
17th May 2026854 AMAQI

22°C22/24°C

17th May 2026805 AMAQI
17th May 2026836 AMAQI
17th May 2026737 AMAQI
17th May 2026728 AMAQI
17th May 2026669 AMAQI
17th May 20265910 AMAQI
17th May 20266811 AMAQI
17th May 20266712 PMAQI
17th May 2026821 PMAQI
17th May 2026762 PMAQI
17th May 2026623 PMAQI
17th May 2026604 PMAQI
17th May 2026625 PMAQI
17th May 2026606 PMAQI
17th May 2026587 PMAQI
17th May 2026568 PMAQI
17th May 2026489 PMAQI
17th May 20265310 PMAQI
17th May 20264711 PMAQI
18th May 20266712 AMAQI
18th May 2026581 AMAQI
18th May 2026582 AMAQI
18th May 2026523 AMAQI
18th May 2026644 AMAQI

22°C21/24°C

18th May 2026705 AMAQI
18th May 2026676 AMAQI
18th May 2026737 AMAQI
18th May 2026728 AMAQI
18th May 2026679 AMAQI
18th May 20267210 AMAQI
18th May 20266011 AMAQI
18th May 20268712 PMAQI
18th May 2026421 PMAQI
18th May 2026362 PMAQI
18th May 2026313 PMAQI
18th May 2026384 PMAQI
18th May 2026445 PMAQI
18th May 2026426 PMAQI
18th May 2026387 PMAQI
18th May 2026468 PMAQI
18th May 2026489 PMAQI
18th May 20265210 PMAQI
18th May 20264411 PMAQI
19th May 20265312 AMAQI
19th May 2026541 AMAQI
19th May 2026522 AMAQI
19th May 2026513 AMAQI
19th May 2026494 AMAQI

23°C21/24°C

19th May 2026495 AMAQI
19th May 2026496 AMAQI
19th May 2026467 AMAQI
19th May 2026538 AMAQI
19th May 2026589 AMAQI
19th May 20265410 AMAQI
19th May 20265411 AMAQI
19th May 20263812 PMAQI
19th May 2026291 PMAQI
19th May 2026402 PMAQI
19th May 2026363 PMAQI
19th May 2026384 PMAQI
19th May 2026365 PMAQI
19th May 2026426 PMAQI
19th May 2026497 PMAQI
19th May 2026608 PMAQI
19th May 2026669 PMAQI
19th May 20266610 PMAQI
19th May 20266411 PMAQI
20th May 20266512 AMAQI
20th May 2026691 AMAQI
20th May 2026692 AMAQI
20th May 2026723 AMAQI
20th May 2026714 AMAQI

24°C23/26°C

20th May 2026715 AMAQI
20th May 2026726 AMAQI
20th May 2026727 AMAQI
20th May 2026728 AMAQI
20th May 2026559 AMAQI
20th May 20265310 AMAQI
20th May 20265211 AMAQI
20th May 20265212 PMAQI
20th May 2026521 PMAQI
20th May 2026472 PMAQI
20th May 2026503 PMAQI
20th May 2026604 PMAQI
20th May 2026675 PMAQI
20th May 2026626 PMAQI
20th May 2026677 PMAQI
20th May 2026688 PMAQI
20th May 2026599 PMAQI
20th May 20266210 PMAQI
20th May 20266611 PMAQI
21st May 20266212 AMAQI
21st May 2026591 AMAQI
21st May 2026552 AMAQI
21st May 2026483 AMAQI
21st May 2026364 AMAQI

24°C23/25°C

21st May 2026485 AMAQI
21st May 2026466 AMAQI
21st May 2026607 AMAQI
21st May 2026628 AMAQI
21st May 2026749 AMAQI
21st May 20266610 AMAQI
21st May 20266011 AMAQI
21st May 20266012 PMAQI
21st May 2026601 PMAQI
21st May 2026602 PMAQI
21st May 2026643 PMAQI
21st May 2026604 PMAQI
21st May 2026575 PMAQI
21st May 2026636 PMAQI
21st May 2026627 PMAQI
21st May 2026628 PMAQI
21st May 2026609 PMAQI
21st May 20266210 PMAQI
21st May 20266211 PMAQI
22nd May 20265612 AMAQI
22nd May 2026621 AMAQI
22nd May 2026582 AMAQI
22nd May 2026583 AMAQI
22nd May 2026604 AMAQI

24°C23/26°C

22nd May 2026635 AMAQI
22nd May 2026676 AMAQI
22nd May 2026647 AMAQI
22nd May 2026658 AMAQI
22nd May 2026629 AMAQI
22nd May 20265510 AMAQI
22nd May 20265611 AMAQI
22nd May 20265612 PMAQI
22nd May 2026561 PMAQI
22nd May 2026562 PMAQI
22nd May 2026563 PMAQI
22nd May 2026564 PMAQI
22nd May 2026565 PMAQI
22nd May 2026566 PMAQI
22nd May 2026567 PMAQI
22nd May 2026558 PMAQI
22nd May 2026609 PMAQI
22nd May 20266410 PMAQI
22nd May 20266611 PMAQI
23rd May 20266012 AMAQI
23rd May 2026641 AMAQI
23rd May 2026662 AMAQI
23rd May 2026643 AMAQI
23rd May 2026684 AMAQI

24°C23/25°C

23rd May 2026575 AMAQI
23rd May 2026506 AMAQI
23rd May 2026507 AMAQI
23rd May 2026548 AMAQI
23rd May 2026579 AMAQI
23rd May 20265510 AMAQI
23rd May 20265211 AMAQI
23rd May 20265212 PMAQI
23rd May 2026521 PMAQI
23rd May 2026522 PMAQI
23rd May 2026523 PMAQI
23rd May 2026554 PMAQI
23rd May 2026545 PMAQI
23rd May 2026516 PMAQI
23rd May 2026557 PMAQI
23rd May 2026568 PMAQI
23rd May 2026569 PMAQI
23rd May 20265310 PMAQI
23rd May 20266611 PMAQI
24th May 20266512 AMAQI
24th May 2026641 AMAQI
24th May 2026802 AMAQI
24th May 2026723 AMAQI
24th May 2026794 AMAQI

25°C24/25°C

24th May 2026795 AMAQI
24th May 2026766 AMAQI
24th May 2026817 AMAQI
24th May 2026748 AMAQI
24th May 2026699 AMAQI
24th May 20265810 AMAQI
24th May 20265211 AMAQI
24th May 20265212 PMAQI
24th May 2026521 PMAQI
24th May 2026522 PMAQI
24th May 2026473 PMAQI
24th May 2026504 PMAQI
24th May 2026485 PMAQI
24th May 2026486 PMAQI
24th May 2026407 PMAQI
24th May 2026388 PMAQI
24th May 2026449 PMAQI
24th May 20264910 PMAQI
24th May 20264011 PMAQI
25th May 20264212 AMAQI
25th May 2026441 AMAQI
25th May 2026442 AMAQI
25th May 2026483 AMAQI
25th May 2026444 AMAQI

25°C25/26°C

25th May 2026465 AMAQI
25th May 2026466 AMAQI
25th May 2026537 AMAQI
25th May 2026628 AMAQI
25th May 2026629 AMAQI
25th May 20265010 AMAQI
25th May 20265011 AMAQI
25th May 20265012 PMAQI
25th May 2026501 PMAQI
25th May 2026502 PMAQI
25th May 2026423 PMAQI
25th May 2026334 PMAQI
25th May 2026365 PMAQI
25th May 2026366 PMAQI
25th May 2026467 PMAQI
25th May 2026608 PMAQI
25th May 2026829 PMAQI
25th May 20266810 PMAQI
25th May 20264711 PMAQI
26th May 20264912 AMAQI
26th May 2026291 AMAQI
26th May 2026382 AMAQI
26th May 2026443 AMAQI
26th May 2026324 AMAQI

25°C24/25°C

26th May 2026275 AMAQI
26th May 2026256 AMAQI
26th May 2026317 AMAQI
26th May 2026368 AMAQI
26th May 2026429 AMAQI
26th May 20265210 AMAQI
26th May 20265411 AMAQI
26th May 20265412 PMAQI
26th May 2026601 PMAQI
26th May 2026742 PMAQI
26th May 2026733 PMAQI
26th May 2026674 PMAQI
26th May 2026205 PMAQI
26th May 2026226 PMAQI
26th May 2026217 PMAQI
26th May 2026218 PMAQI
26th May 2026319 PMAQI
26th May 20262710 PMAQI
26th May 20263311 PMAQI
27th May 20263112 AMAQI
27th May 2026291 AMAQI
27th May 2026262 AMAQI
27th May 2026303 AMAQI
27th May 2026274 AMAQI

26°C25/27°C

27th May 2026265 AMAQI
27th May 2026246 AMAQI
27th May 2026247 AMAQI
27th May 2026288 AMAQI
27th May 2026329 AMAQI
27th May 20262710 AMAQI
27th May 20262611 AMAQI
27th May 20262812 PMAQI
27th May 2026271 PMAQI
27th May 2026262 PMAQI
27th May 2026263 PMAQI
27th May 2026264 PMAQI
27th May 2026255 PMAQI
27th May 2026236 PMAQI
27th May 2026267 PMAQI
27th May 2026288 PMAQI
27th May 2026249 PMAQI
27th May 20262710 PMAQI
27th May 20263011 PMAQI
28th May 20263412 AMAQI
28th May 2026301 AMAQI
28th May 2026312 AMAQI
28th May 2026323 AMAQI
28th May 2026344 AMAQI

26°C26/28°C

28th May 2026305 AMAQI
28th May 2026306 AMAQI
28th May 2026317 AMAQI
28th May 2026308 AMAQI
28th May 2026349 AMAQI
28th May 20263410 AMAQI
28th May 20263211 AMAQI
28th May 20263412 PMAQI
28th May 2026291 PMAQI
28th May 2026272 PMAQI
28th May 2026283 PMAQI
28th May 2026264 PMAQI
28th May 2026245 PMAQI
28th May 2026246 PMAQI
28th May 2026257 PMAQI
28th May 2026268 PMAQI
28th May 2026239 PMAQI
28th May 20262710 PMAQI
28th May 20262411 PMAQI
29th May 20262412 AMAQI
29th May 2026241 AMAQI
29th May 2026252 AMAQI
29th May 2026223 AMAQI
29th May 2026214 AMAQI

26°C25/27°C

29th May 2026205 AMAQI
29th May 2026226 AMAQI
29th May 2026267 AMAQI
29th May 2026288 AMAQI
29th May 2026339 AMAQI
29th May 20263610 AMAQI
29th May 20265511 AMAQI
29th May 20264212 PMAQI
29th May 2026261 PMAQI
29th May 2026342 PMAQI
29th May 2026293 PMAQI
29th May 2026244 PMAQI
29th May 2026245 PMAQI
29th May 2026246 PMAQI
29th May 2026247 PMAQI
29th May 2026228 PMAQI
29th May 2026229 PMAQI
29th May 20262410 PMAQI
29th May 20264511 PMAQI
30th May 20265812 AMAQI
30th May 2026651 AMAQI
30th May 2026662 AMAQI
30th May 2026603 AMAQI
30th May 2026584 AMAQI

25°C23/25°C

30th May 2026545 AMAQI
30th May 2026546 AMAQI
30th May 2026547 AMAQI
30th May 2026548 AMAQI
30th May 2026579 AMAQI
30th May 20265310 AMAQI
30th May 20265011 AMAQI
30th May 20264912 PMAQI
30th May 2026481 PMAQI
30th May 2026502 PMAQI
30th May 2026443 PMAQI
30th May 2026404 PMAQI
30th May 2026575 PMAQI
30th May 2026556 PMAQI
30th May 2026577 PMAQI
30th May 2026588 PMAQI
30th May 2026569 PMAQI
30th May 20265210 PMAQI
30th May 20265211 PMAQI
31st May 20265312 AMAQI
31st May 2026521 AMAQI
31st May 2026482 AMAQI
31st May 2026523 AMAQI
31st May 2026534 AMAQI

24°C23/26°C

31st May 2026575 AMAQI
31st May 2026556 AMAQI
31st May 2026537 AMAQI
31st May 2026508 AMAQI
31st May 2026289 AMAQI
31st May 20263810 AMAQI
31st May 20264211 AMAQI
31st May 20264512 PMAQI
31st May 2026341 PMAQI
31st May 2026242 PMAQI
31st May 2026233 PMAQI
31st May 2026224 PMAQI
31st May 2026245 PMAQI
31st May 2026276 PMAQI
31st May 2026297 PMAQI
31st May 2026238 PMAQI
31st May 2026239 PMAQI
31st May 20263210 PMAQI
31st May 20262511 PMAQI
1st Jun 20263212 AMAQI
1st Jun 2026311 AMAQI
1st Jun 2026292 AMAQI
1st Jun 2026313 AMAQI
1st Jun 2026284 AMAQI

25°C23/27°C

1st Jun 2026315 AMAQI
1st Jun 2026266 AMAQI
1st Jun 2026277 AMAQI
1st Jun 2026508 AMAQI
1st Jun 2026329 AMAQI
1st Jun 20263610 AMAQI
1st Jun 20263311 AMAQI
1st Jun 20262712 PMAQI
1st Jun 2026341 PMAQI
1st Jun 2026462 PMAQI
1st Jun 2026443 PMAQI
1st Jun 2026344 PMAQI
1st Jun 2026275 PMAQI
1st Jun 2026386 PMAQI
1st Jun 2026367 PMAQI
1st Jun 2026338 PMAQI
1st Jun 2026239 PMAQI
1st Jun 20262510 PMAQI
1st Jun 20261011 PMAQI
2nd Jun 20261212 AMAQI
2nd Jun 202681 AMAQI
2nd Jun 202682 AMAQI
2nd Jun 202683 AMAQI
2nd Jun 2026124 AMAQI

26°C25/26°C

2nd Jun 2026125 AMAQI
2nd Jun 2026126 AMAQI
2nd Jun 2026127 AMAQI
2nd Jun 2026168 AMAQI
2nd Jun 2026179 AMAQI
2nd Jun 20261610 AMAQI
2nd Jun 20261911 AMAQI
2nd Jun 20261812 PMAQI
2nd Jun 2026251 PMAQI
2nd Jun 2026532 PMAQI
2nd Jun 2026523 PMAQI
2nd Jun 2026464 PMAQI
2nd Jun 2026515 PMAQI
2nd Jun 2026176 PMAQI
2nd Jun 2026247 PMAQI
2nd Jun 2026288 PMAQI
2nd Jun 2026289 PMAQI
2nd Jun 20263110 PMAQI
2nd Jun 20263211 PMAQI
3rd Jun 20263012 AMAQI
3rd Jun 2026351 AMAQI
3rd Jun 2026332 AMAQI
3rd Jun 2026303 AMAQI
3rd Jun 2026304 AMAQI

26°C26/27°C

3rd Jun 2026315 AMAQI
5 AM
3rd Jun 2026306 AMAQI
3rd Jun 2026327 AMAQI
3rd Jun 2026288 AMAQI
3rd Jun 2026319 AMAQI
3rd Jun 20263410 AMAQI
3rd Jun 20263411 AMAQI
3rd Jun 20263812 PMAQI
12 PM
3rd Jun 2026291 PMAQI
3rd Jun 2026542 PMAQI
3rd Jun 2026313 PMAQI
3rd Jun 2026334 PMAQI
3rd Jun 2026315 PMAQI
3rd Jun 2026386 PMAQI
3rd Jun 2026337 PMAQI
7 PM
3rd Jun 2026338 PMAQI
3rd Jun 2026339 PMAQI
3rd Jun 20262110 PMAQI
3rd Jun 20262811 PMAQI
12 AM
4 AM

26°C25/28°C

Day time
Avg. Highest Time
10 AM

47AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
6 PM - 7 PM

36AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 10 AM (Avg. 47), while the lowest AQI was between 6 PM to 7 PM (Avg. 36).
Night time
Avg. Highest Time
4 AM

46AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
8 PM - 9 PM

36AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 4 AM (Avg. 46), while the lowest AQI was between 8 PM to 9 PM (Avg. 36).

2026 Days Vs Air Quality

Koja, Okinawa, Japan

2026

77%

118

23%

36

Total number of days with different AQI categories in last 154 days in 2026 (211 days remaining)

Good
118 Days
Moderate
36 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 77%

Health Risk Level:

Low

In 2026, 77% of 154 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

Koja, Okinawa, 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
28AQI (US)
2nd January 2026
22AQI (US)
3rd January 2026
22AQI (US)
4th January 2026
30AQI (US)
5th January 2026
29AQI (US)
6th January 2026
30AQI (US)
7th January 2026
40AQI (US)
8th January 2026
49AQI (US)
9th January 2026
26AQI (US)
10th January 2026
24AQI (US)
11th January 2026
42AQI (US)
12th January 2026
35AQI (US)
13th January 2026
28AQI (US)
14th January 2026
31AQI (US)
15th January 2026
27AQI (US)
16th January 2026
32AQI (US)
17th January 2026
26AQI (US)
18th January 2026
35AQI (US)
19th January 2026
33AQI (US)
20th January 2026
35AQI (US)
21st January 2026
29AQI (US)
22nd January 2026
26AQI (US)
23rd January 2026
41AQI (US)
24th January 2026
40AQI (US)
25th January 2026
47AQI (US)
26th January 2026
45AQI (US)
27th January 2026
37AQI (US)
28th January 2026
39AQI (US)
29th January 2026
37AQI (US)
30th January 2026
39AQI (US)
31st January 2026
32AQI (US)
1st February 2026
28AQI (US)
2nd February 2026
54AQI (US)
3rd February 2026
32AQI (US)
4th February 2026
23AQI (US)
5th February 2026
48AQI (US)
6th February 2026
42AQI (US)
7th February 2026
34AQI (US)
8th February 2026
33AQI (US)
9th February 2026
19AQI (US)
10th February 2026
39AQI (US)
11th February 2026
47AQI (US)
12th February 2026
53AQI (US)
13th February 2026
50AQI (US)
14th February 2026
59AQI (US)
15th February 2026
42AQI (US)
16th February 2026
44AQI (US)
17th February 2026
40AQI (US)
18th February 2026
41AQI (US)
19th February 2026
44AQI (US)
20th February 2026
43AQI (US)
21st February 2026
59AQI (US)
22nd February 2026
49AQI (US)
23rd February 2026
46AQI (US)
24th February 2026
45AQI (US)
25th February 2026
37AQI (US)
26th February 2026
33AQI (US)
27th February 2026
49AQI (US)
28th February 2026
53AQI (US)
1st March 2026
41AQI (US)
2nd March 2026
74AQI (US)
3rd March 2026
46AQI (US)
4th March 2026
61AQI (US)
5th March 2026
51AQI (US)
6th March 2026
60AQI (US)
7th March 2026
61AQI (US)
8th March 2026
50AQI (US)
9th March 2026
53AQI (US)
10th March 2026
60AQI (US)
11th March 2026
56AQI (US)
12th March 2026
64AQI (US)
13th March 2026
50AQI (US)
14th March 2026
40AQI (US)
15th March 2026
61AQI (US)
16th March 2026
58AQI (US)
17th March 2026
63AQI (US)
18th March 2026
59AQI (US)
19th March 2026
47AQI (US)
20th March 2026
47AQI (US)
21st March 2026
44AQI (US)
22nd March 2026
41AQI (US)
23rd March 2026
39AQI (US)
24th March 2026
45AQI (US)
25th March 2026
61AQI (US)
26th March 2026
51AQI (US)
27th March 2026
63AQI (US)
28th March 2026
54AQI (US)
29th March 2026
58AQI (US)
30th March 2026
21AQI (US)
31st March 2026
29AQI (US)
1st April 2026
39AQI (US)
2nd April 2026
49AQI (US)
3rd April 2026
42AQI (US)
4th April 2026
40AQI (US)
5th April 2026
45AQI (US)
6th April 2026
45AQI (US)
7th April 2026
29AQI (US)
8th April 2026
39AQI (US)
9th April 2026
43AQI (US)
10th April 2026
42AQI (US)
11th April 2026
41AQI (US)
12th April 2026
41AQI (US)
13th April 2026
39AQI (US)
14th April 2026
42AQI (US)
15th April 2026
41AQI (US)
16th April 2026
37AQI (US)
17th April 2026
41AQI (US)
18th April 2026
32AQI (US)
19th April 2026
44AQI (US)
20th April 2026
51AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
49AQI (US)
23rd April 2026
39AQI (US)
24th April 2026
39AQI (US)
25th April 2026
48AQI (US)
26th April 2026
51AQI (US)
27th April 2026
55AQI (US)
28th April 2026
50AQI (US)
29th April 2026
32AQI (US)
30th April 2026
36AQI (US)
1st May 2026
46AQI (US)
2nd May 2026
55AQI (US)
3rd May 2026
39AQI (US)
4th May 2026
34AQI (US)
5th May 2026
14AQI (US)
6th May 2026
13AQI (US)
7th May 2026
29AQI (US)
8th May 2026
25AQI (US)
9th May 2026
24AQI (US)
10th May 2026
23AQI (US)
11th May 2026
26AQI (US)
12th May 2026
32AQI (US)
13th May 2026
35AQI (US)
14th May 2026
37AQI (US)
15th May 2026
35AQI (US)
16th May 2026
86AQI (US)
17th May 2026
68AQI (US)
18th May 2026
55AQI (US)
19th May 2026
49AQI (US)
20th May 2026
63AQI (US)
21st May 2026
59AQI (US)
22nd May 2026
59AQI (US)
23rd May 2026
56AQI (US)
24th May 2026
59AQI (US)
25th May 2026
50AQI (US)
26th May 2026
40AQI (US)
27th May 2026
27AQI (US)
28th May 2026
29AQI (US)
29th May 2026
28AQI (US)
30th May 2026
54AQI (US)
31st May 2026
38AQI (US)
1st June 2026
32AQI (US)
2nd June 2026
23AQI (US)
3rd June 2026
32AQI (US)
4th June 2026
5th June 2026
6th June 2026
7th June 2026
8th June 2026
9th June 2026
10th June 2026
11th June 2026
12th June 2026
13th June 2026
14th June 2026
15th June 2026
16th June 2026
17th June 2026
18th June 2026
19th June 2026
20th June 2026
21st June 2026
22nd June 2026
23rd June 2026
24th June 2026
25th June 2026
26th June 2026
27th June 2026
28th June 2026
29th June 2026
30th June 2026
1st July 2026
2nd July 2026
3rd July 2026
4th July 2026
5th July 2026
6th July 2026
7th July 2026
8th July 2026
9th July 2026
10th July 2026
11th July 2026
12th July 2026
13th July 2026
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
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)

42AQI (US)

52AQI (US)

42AQI (US)

42AQI (US)

29AQI (US)

No. of days

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

202642AQI (US)

31
23
5
13
18
27
3
21
10
3
118
36

Highest AQI (US) recorded in

March

52AQI (US)

Lowest AQI (US) recorded in

June

29AQI (US)

202540AQI (US)

25
6
24
4
28
3
25
5
24
7
29
1
31
30
1
30
15
16
17
13
25
6
303
62

Highest AQI (US) recorded in

October

50AQI (US)

Lowest AQI (US) recorded in

September

27AQI (US)

202439AQI (US)

16
1
15
3
26
4
27
3
30
1
26
5
9
1
6
23
8
30
30
1
233
26
6

Highest AQI (US) recorded in

September

69AQI (US)

Lowest AQI (US) recorded in

January

19AQI (US)

202335AQI (US)

29
1
26
2
30
1
23
7
22
8
26
3
28
13
6
27
9
4
1
3
31
267
32
1

Highest AQI (US) recorded in

October

52AQI (US)

Lowest AQI (US) recorded in

December

19AQI (US)

202230AQI (US)

2
20
1
29
2
25
3
30
30
24
1
24
4
22
29
1
30
1
266
12

Highest AQI (US) recorded in

August

42AQI (US)

Lowest AQI (US) recorded in

July

18AQI (US)

202129AQI (US)

31
26
2
28
1
20
1
30
1
29
1
26
30
1
27
1
30
1
29
1
31
337
10

Highest AQI (US) recorded in

April

37AQI (US)

Lowest AQI (US) recorded in

July

20AQI (US)

202027AQI (US)

11
2
16
5
17
1
30
31
19
8
1
15
1
27
4
30
31
227
21
1

Highest AQI (US) recorded in

April

40AQI (US)

Lowest AQI (US) recorded in

July

16AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
42AQI (US)
Least Polluted Year Recorded
2020(Avg.)
27AQI (US)

Koja's annual 2026 AQI (US) (42) shows an average percentage change of 28.8% (worsened AQI (US)) compared to previous years: 2020 (27), 2021 (29), 2022 (30), 2023 (35), 2024 (39), 2025 (40).