Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Osan, Gyeonggi, South Korea 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

Osan, Gyeonggi, South Korea

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Jun 2025
104AQI
Lowest AQI recorded on
27th Jun 2022
23AQI

Same Day Analysis (2nd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 60 of Moderate air quality, showing improvement over 2025, 2023 and 2022 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Jun - 2nd Jun 2026

Osan, Gyeonggi, South Korea

AQI
Day
Night
.

5 AM1st Jun 2026

7 PM

4 AM2nd Jun 2026

Day time
Avg. Highest Time
12PM1st Jun

54AQI

Avg. Lowest Time
4PM1st Jun

33AQI

Night time
Avg. Highest Time
2AM2nd Jun

58AQI

Avg. Lowest Time
8PM1st Jun

48AQI

In the last 24 hours,

Osan's AQI reached its highest point of 58 at 2 AM during the Night, while the lowest point, 33, was recorded at 4 PM during the Day between 1st Jun and 2nd Jun 2026.

Day & Night AQI Trend : May - Jun 2026

Osan, Gyeonggi, South Korea

MayJun
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 - 31st31st - 01st01st - 02nd02nd
Day
Night
4th May 2026135 AMAQI
4th May 2026156 AMAQI
4th May 2026137 AMAQI
4th May 2026118 AMAQI
4th May 2026229 AMAQI
4th May 20262110 AMAQI
4th May 20261911 AMAQI
4th May 20262312 PMAQI
4th May 2026321 PMAQI
4th May 2026362 PMAQI
4th May 2026433 PMAQI
4th May 2026324 PMAQI
4th May 2026345 PMAQI
4th May 2026336 PMAQI
4th May 2026287 PMAQI
4th May 2026328 PMAQI
4th May 2026369 PMAQI
4th May 20264210 PMAQI
4th May 20264811 PMAQI
5th May 20264812 AMAQI
5th May 2026461 AMAQI
5th May 2026472 AMAQI
5th May 2026483 AMAQI
5th May 2026484 AMAQI

14°C10/19°C

5th May 2026535 AMAQI
5th May 2026566 AMAQI
5th May 2026617 AMAQI
5th May 2026608 AMAQI
5th May 2026679 AMAQI
5th May 20266010 AMAQI
5th May 20266211 AMAQI
5th May 20264912 PMAQI
5th May 2026501 PMAQI
5th May 2026292 PMAQI
5th May 2026343 PMAQI
5th May 2026334 PMAQI
5th May 2026385 PMAQI
5th May 2026336 PMAQI
5th May 2026247 PMAQI
5th May 2026228 PMAQI
5th May 2026209 PMAQI
5th May 20262110 PMAQI
5th May 20262311 PMAQI
6th May 20262412 AMAQI
6th May 2026281 AMAQI
6th May 2026322 AMAQI
6th May 2026303 AMAQI
6th May 2026254 AMAQI

15°C10/21°C

6th May 2026235 AMAQI
6th May 2026246 AMAQI
6th May 2026267 AMAQI
6th May 2026268 AMAQI
6th May 2026289 AMAQI
6th May 20263010 AMAQI
6th May 20262911 AMAQI
6th May 20263612 PMAQI
6th May 2026461 PMAQI
6th May 2026492 PMAQI
6th May 2026393 PMAQI
6th May 2026384 PMAQI
6th May 2026325 PMAQI
6th May 2026416 PMAQI
6th May 2026387 PMAQI
6th May 2026448 PMAQI
6th May 2026369 PMAQI
6th May 20264210 PMAQI
6th May 20264311 PMAQI
7th May 20264012 AMAQI
7th May 2026391 AMAQI
7th May 2026422 AMAQI
7th May 2026463 AMAQI
7th May 2026444 AMAQI

17°C12/23°C

7th May 2026505 AMAQI
7th May 2026506 AMAQI
7th May 2026547 AMAQI
7th May 2026528 AMAQI
7th May 2026529 AMAQI
7th May 20264210 AMAQI
7th May 20264011 AMAQI
7th May 20263212 PMAQI
7th May 2026321 PMAQI
7th May 2026342 PMAQI
7th May 2026343 PMAQI
7th May 2026334 PMAQI
7th May 2026305 PMAQI
7th May 2026336 PMAQI
7th May 2026287 PMAQI
7th May 2026258 PMAQI
7th May 2026249 PMAQI
7th May 20262610 PMAQI
7th May 20263211 PMAQI
8th May 20263412 AMAQI
8th May 2026451 AMAQI
8th May 2026702 AMAQI
8th May 2026713 AMAQI
8th May 2026564 AMAQI

16°C12/21°C

8th May 2026565 AMAQI
8th May 2026496 AMAQI
8th May 2026467 AMAQI
8th May 2026408 AMAQI
8th May 2026239 AMAQI
8th May 20262310 AMAQI
8th May 20262311 AMAQI
8th May 20262612 PMAQI
8th May 2026291 PMAQI
8th May 2026312 PMAQI
8th May 2026343 PMAQI
8th May 2026384 PMAQI
8th May 2026375 PMAQI
8th May 2026266 PMAQI
8th May 2026227 PMAQI
8th May 2026228 PMAQI
8th May 2026269 PMAQI
8th May 20262910 PMAQI
8th May 20263211 PMAQI
9th May 20263412 AMAQI
9th May 2026341 AMAQI
9th May 2026292 AMAQI
9th May 2026383 AMAQI
9th May 2026394 AMAQI

16°C12/20°C

9th May 2026405 AMAQI
9th May 2026406 AMAQI
9th May 2026487 AMAQI
9th May 2026478 AMAQI
9th May 2026409 AMAQI
9th May 20264010 AMAQI
9th May 20263211 AMAQI
9th May 20263012 PMAQI
9th May 2026261 PMAQI
9th May 2026252 PMAQI
9th May 2026243 PMAQI
9th May 2026244 PMAQI
9th May 2026245 PMAQI
9th May 2026236 PMAQI
9th May 2026237 PMAQI
9th May 2026218 PMAQI
9th May 2026249 PMAQI
9th May 20262710 PMAQI
9th May 20262511 PMAQI
10th May 20263512 AMAQI
10th May 2026331 AMAQI
10th May 2026312 AMAQI
10th May 2026343 AMAQI
10th May 2026524 AMAQI

17°C12/22°C

10th May 2026525 AMAQI
10th May 2026556 AMAQI
10th May 2026507 AMAQI
10th May 2026548 AMAQI
10th May 2026519 AMAQI
10th May 20264910 AMAQI
10th May 20263911 AMAQI
10th May 20264012 PMAQI
10th May 2026371 PMAQI
10th May 2026382 PMAQI
10th May 2026313 PMAQI
10th May 2026274 PMAQI
10th May 2026215 PMAQI
10th May 2026146 PMAQI
10th May 2026177 PMAQI
10th May 2026218 PMAQI
10th May 2026259 PMAQI
10th May 20263410 PMAQI
10th May 20263311 PMAQI
11th May 20262712 AMAQI
11th May 2026201 AMAQI
11th May 2026212 AMAQI
11th May 2026283 AMAQI
11th May 2026314 AMAQI

18°C13/24°C

11th May 2026375 AMAQI
11th May 2026426 AMAQI
11th May 2026407 AMAQI
11th May 2026388 AMAQI
11th May 2026409 AMAQI
11th May 20264910 AMAQI
11th May 20264911 AMAQI
11th May 20263712 PMAQI
11th May 2026311 PMAQI
11th May 2026352 PMAQI
11th May 2026333 PMAQI
11th May 2026334 PMAQI
11th May 2026335 PMAQI
11th May 2026316 PMAQI
11th May 2026297 PMAQI
11th May 2026298 PMAQI
11th May 2026309 PMAQI
11th May 20263010 PMAQI
11th May 20262911 PMAQI
12th May 20263712 AMAQI
12th May 2026361 AMAQI
12th May 2026512 AMAQI
12th May 2026503 AMAQI
12th May 2026564 AMAQI

17°C14/22°C

12th May 2026485 AMAQI
12th May 2026596 AMAQI
12th May 2026617 AMAQI
12th May 2026468 AMAQI
12th May 2026489 AMAQI
12th May 20265410 AMAQI
12th May 20263511 AMAQI
12th May 20263912 PMAQI
12th May 2026311 PMAQI
12th May 2026302 PMAQI
12th May 2026373 PMAQI
12th May 2026304 PMAQI
12th May 2026375 PMAQI
12th May 2026396 PMAQI
12th May 2026487 PMAQI
12th May 2026338 PMAQI
12th May 2026319 PMAQI
12th May 20263210 PMAQI
12th May 20263111 PMAQI
13th May 20265012 AMAQI
13th May 2026541 AMAQI
13th May 2026572 AMAQI
13th May 2026633 AMAQI
13th May 2026654 AMAQI

18°C15/22°C

13th May 2026675 AMAQI
13th May 2026686 AMAQI
13th May 2026717 AMAQI
13th May 2026648 AMAQI
13th May 2026659 AMAQI
13th May 20266710 AMAQI
13th May 20266411 AMAQI
13th May 20265612 PMAQI
13th May 2026601 PMAQI
13th May 2026582 PMAQI
13th May 2026603 PMAQI
13th May 2026574 PMAQI
13th May 2026295 PMAQI
13th May 2026286 PMAQI
13th May 2026307 PMAQI
13th May 2026418 PMAQI
13th May 2026409 PMAQI
13th May 20263410 PMAQI
13th May 20263311 PMAQI
14th May 20263712 AMAQI
14th May 2026401 AMAQI
14th May 2026492 AMAQI
14th May 2026493 AMAQI
14th May 2026564 AMAQI

20°C14/26°C

14th May 2026545 AMAQI
14th May 2026586 AMAQI
14th May 2026627 AMAQI
14th May 2026708 AMAQI
14th May 2026379 AMAQI
14th May 20266610 AMAQI
14th May 20266511 AMAQI
14th May 20266212 PMAQI
14th May 2026531 PMAQI
14th May 2026532 PMAQI
14th May 2026583 PMAQI
14th May 2026504 PMAQI
14th May 2026425 PMAQI
14th May 2026406 PMAQI
14th May 2026417 PMAQI
14th May 2026528 PMAQI
14th May 2026789 PMAQI
14th May 20267510 PMAQI
14th May 20269111 PMAQI
15th May 202610512 AMAQI
15th May 20261121 AMAQI
15th May 2026722 AMAQI
15th May 2026873 AMAQI
15th May 2026864 AMAQI

23°C16/30°C

15th May 2026865 AMAQI
15th May 2026876 AMAQI
15th May 2026787 AMAQI
15th May 2026858 AMAQI
15th May 2026859 AMAQI
15th May 20264510 AMAQI
15th May 20264111 AMAQI
15th May 20264112 PMAQI
15th May 2026411 PMAQI
15th May 2026522 PMAQI
15th May 2026503 PMAQI
15th May 2026484 PMAQI
15th May 2026585 PMAQI
15th May 2026676 PMAQI
15th May 2026647 PMAQI
15th May 2026618 PMAQI
15th May 2026669 PMAQI
15th May 20266510 PMAQI
15th May 20266211 PMAQI
16th May 20267312 AMAQI
16th May 2026861 AMAQI
16th May 2026782 AMAQI
16th May 2026813 AMAQI
16th May 2026754 AMAQI

24°C18/30°C

16th May 2026715 AMAQI
16th May 2026686 AMAQI
16th May 2026717 AMAQI
16th May 2026828 AMAQI
16th May 2026829 AMAQI
16th May 20267110 AMAQI
16th May 20268011 AMAQI
16th May 20268012 PMAQI
16th May 2026861 PMAQI
16th May 2026822 PMAQI
16th May 2026843 PMAQI
16th May 2026844 PMAQI
16th May 2026765 PMAQI
16th May 2026676 PMAQI
16th May 2026707 PMAQI
16th May 2026708 PMAQI
16th May 2026769 PMAQI
16th May 20267810 PMAQI
16th May 20268611 PMAQI
17th May 20267612 AMAQI
17th May 2026681 AMAQI
17th May 2026782 AMAQI
17th May 2026793 AMAQI
17th May 2026744 AMAQI

23°C18/29°C

17th May 2026765 AMAQI
17th May 2026766 AMAQI
17th May 2026737 AMAQI
17th May 2026698 AMAQI
17th May 2026659 AMAQI
17th May 20265810 AMAQI
17th May 20265811 AMAQI
17th May 20266212 PMAQI
17th May 2026751 PMAQI
17th May 2026672 PMAQI
17th May 2026593 PMAQI
17th May 2026604 PMAQI
17th May 2026645 PMAQI
17th May 2026586 PMAQI
17th May 2026577 PMAQI
17th May 2026558 PMAQI
17th May 2026549 PMAQI
17th May 20265610 PMAQI
17th May 20265011 PMAQI
18th May 20265612 AMAQI
18th May 2026641 AMAQI
18th May 2026592 AMAQI
18th May 2026553 AMAQI
18th May 2026594 AMAQI

22°C17/27°C

18th May 2026645 AMAQI
18th May 2026616 AMAQI
18th May 2026667 AMAQI
18th May 2026638 AMAQI
18th May 2026609 AMAQI
18th May 20266510 AMAQI
18th May 20266311 AMAQI
18th May 20265912 PMAQI
18th May 2026491 PMAQI
18th May 2026462 PMAQI
18th May 2026453 PMAQI
18th May 2026504 PMAQI
18th May 2026495 PMAQI
18th May 2026486 PMAQI
18th May 2026477 PMAQI
18th May 2026508 PMAQI
18th May 2026509 PMAQI
18th May 20265210 PMAQI
18th May 20265411 PMAQI
19th May 20265512 AMAQI
19th May 2026601 AMAQI
19th May 2026572 AMAQI
19th May 2026543 AMAQI
19th May 2026544 AMAQI

23°C18/29°C

19th May 2026515 AMAQI
19th May 2026516 AMAQI
19th May 2026487 AMAQI
19th May 2026548 AMAQI
19th May 2026579 AMAQI
19th May 20265610 AMAQI
19th May 20265611 AMAQI
19th May 20264412 PMAQI
19th May 2026411 PMAQI
19th May 2026422 PMAQI
19th May 2026403 PMAQI
19th May 2026434 PMAQI
19th May 2026435 PMAQI
19th May 2026456 PMAQI
19th May 2026527 PMAQI
19th May 2026588 PMAQI
19th May 2026659 PMAQI
19th May 20266610 PMAQI
19th May 20266911 PMAQI
20th May 20266812 AMAQI
20th May 2026701 AMAQI
20th May 2026732 AMAQI
20th May 2026753 AMAQI
20th May 2026754 AMAQI

23°C20/26°C

20th May 2026775 AMAQI
20th May 2026816 AMAQI
20th May 2026787 AMAQI
20th May 2026768 AMAQI
20th May 2026559 AMAQI
20th May 20264810 AMAQI
20th May 20264411 AMAQI
20th May 20264412 PMAQI
20th May 2026441 PMAQI
20th May 2026482 PMAQI
20th May 2026523 PMAQI
20th May 2026614 PMAQI
20th May 2026625 PMAQI
20th May 2026606 PMAQI
20th May 2026617 PMAQI
20th May 2026638 PMAQI
20th May 2026639 PMAQI
20th May 20266610 PMAQI
20th May 20267011 PMAQI
21st May 20266612 AMAQI
21st May 2026671 AMAQI
21st May 2026662 AMAQI
21st May 2026583 AMAQI
21st May 2026394 AMAQI

18°C16/21°C

21st May 2026435 AMAQI
21st May 2026386 AMAQI
21st May 2026627 AMAQI
21st May 2026698 AMAQI
21st May 2026789 AMAQI
21st May 20267010 AMAQI
21st May 20266811 AMAQI
21st May 20266812 PMAQI
21st May 2026681 PMAQI
21st May 2026682 PMAQI
21st May 2026743 PMAQI
21st May 2026784 PMAQI
21st May 2026725 PMAQI
21st May 2026756 PMAQI
21st May 2026727 PMAQI
21st May 2026718 PMAQI
21st May 2026729 PMAQI
21st May 20267210 PMAQI
21st May 20267111 PMAQI
22nd May 20266812 AMAQI
22nd May 2026781 AMAQI
22nd May 2026752 AMAQI
22nd May 2026753 AMAQI
22nd May 2026814 AMAQI

17°C16/17°C

22nd May 2026815 AMAQI
22nd May 2026786 AMAQI
22nd May 2026737 AMAQI
22nd May 2026738 AMAQI
22nd May 2026699 AMAQI
22nd May 20267210 AMAQI
22nd May 20267711 AMAQI
22nd May 20267712 PMAQI
22nd May 2026771 PMAQI
22nd May 2026772 PMAQI
22nd May 2026773 PMAQI
22nd May 2026774 PMAQI
22nd May 2026775 PMAQI
22nd May 2026776 PMAQI
22nd May 2026777 PMAQI
22nd May 2026728 PMAQI
22nd May 2026769 PMAQI
22nd May 20268510 PMAQI
22nd May 20268711 PMAQI
23rd May 20268412 AMAQI
23rd May 2026821 AMAQI
23rd May 2026822 AMAQI
23rd May 2026823 AMAQI
23rd May 2026904 AMAQI

21°C16/26°C

23rd May 2026745 AMAQI
23rd May 2026686 AMAQI
23rd May 2026697 AMAQI
23rd May 2026678 AMAQI
23rd May 2026719 AMAQI
23rd May 20266910 AMAQI
23rd May 20266811 AMAQI
23rd May 20266812 PMAQI
23rd May 2026681 PMAQI
23rd May 2026682 PMAQI
23rd May 2026683 PMAQI
23rd May 2026644 PMAQI
23rd May 2026645 PMAQI
23rd May 2026666 PMAQI
23rd May 2026667 PMAQI
23rd May 2026668 PMAQI
23rd May 2026649 PMAQI
23rd May 20266410 PMAQI
23rd May 20267311 PMAQI
24th May 20268012 AMAQI
24th May 2026691 AMAQI
24th May 2026742 AMAQI
24th May 2026783 AMAQI
24th May 2026804 AMAQI

18°C16/23°C

24th May 2026795 AMAQI
24th May 2026786 AMAQI
24th May 2026787 AMAQI
24th May 2026768 AMAQI
24th May 2026779 AMAQI
24th May 20266710 AMAQI
24th May 20266511 AMAQI
24th May 20266512 PMAQI
24th May 2026651 PMAQI
24th May 2026652 PMAQI
24th May 2026653 PMAQI
24th May 2026654 PMAQI
24th May 2026645 PMAQI
24th May 2026646 PMAQI
24th May 2026627 PMAQI
24th May 2026608 PMAQI
24th May 2026649 PMAQI
24th May 20267310 PMAQI
24th May 20267611 PMAQI
25th May 20266412 AMAQI
25th May 2026691 AMAQI
25th May 2026742 AMAQI
25th May 2026703 AMAQI
25th May 2026644 AMAQI

22°C16/28°C

25th May 2026665 AMAQI
25th May 2026666 AMAQI
25th May 2026707 AMAQI
25th May 2026688 AMAQI
25th May 2026719 AMAQI
25th May 20266510 AMAQI
25th May 20266611 AMAQI
25th May 20266612 PMAQI
25th May 2026661 PMAQI
25th May 2026662 PMAQI
25th May 2026593 PMAQI
25th May 2026584 PMAQI
25th May 2026575 PMAQI
25th May 2026546 PMAQI
25th May 2026577 PMAQI
25th May 2026608 PMAQI
25th May 2026749 PMAQI
25th May 20266810 PMAQI
25th May 20266011 PMAQI
26th May 20265812 AMAQI
26th May 2026541 AMAQI
26th May 2026552 AMAQI
26th May 2026493 AMAQI
26th May 2026494 AMAQI

24°C18/30°C

26th May 2026465 AMAQI
26th May 2026506 AMAQI
26th May 2026507 AMAQI
26th May 2026508 AMAQI
26th May 2026469 AMAQI
26th May 20265210 AMAQI
26th May 20265311 AMAQI
26th May 20265312 PMAQI
26th May 2026571 PMAQI
26th May 2026662 PMAQI
26th May 2026673 PMAQI
26th May 2026644 PMAQI
26th May 2026225 PMAQI
26th May 2026216 PMAQI
26th May 2026217 PMAQI
26th May 2026228 PMAQI
26th May 2026539 PMAQI
26th May 20264910 PMAQI
26th May 20265311 PMAQI
27th May 20265312 AMAQI
27th May 2026501 AMAQI
27th May 2026502 AMAQI
27th May 2026503 AMAQI
27th May 2026484 AMAQI

25°C23/28°C

27th May 2026495 AMAQI
27th May 2026456 AMAQI
27th May 2026467 AMAQI
27th May 2026348 AMAQI
27th May 2026369 AMAQI
27th May 20262910 AMAQI
27th May 20263611 AMAQI
27th May 20263012 PMAQI
27th May 2026191 PMAQI
27th May 2026182 PMAQI
27th May 2026153 PMAQI
27th May 2026154 PMAQI
27th May 2026175 PMAQI
27th May 2026186 PMAQI
27th May 2026187 PMAQI
27th May 2026168 PMAQI
27th May 2026169 PMAQI
27th May 20261910 PMAQI
27th May 20262211 PMAQI
28th May 20262312 AMAQI
28th May 2026291 AMAQI
28th May 2026322 AMAQI
28th May 2026323 AMAQI
28th May 2026314 AMAQI

23°C21/26°C

28th May 2026295 AMAQI
28th May 2026296 AMAQI
28th May 2026317 AMAQI
28th May 2026288 AMAQI
28th May 2026309 AMAQI
28th May 20263510 AMAQI
28th May 20264211 AMAQI
28th May 20263912 PMAQI
28th May 2026431 PMAQI
28th May 2026522 PMAQI
28th May 2026503 PMAQI
28th May 2026504 PMAQI
28th May 2026505 PMAQI
28th May 2026586 PMAQI
28th May 2026497 PMAQI
28th May 2026478 PMAQI
28th May 2026459 PMAQI
28th May 20264510 PMAQI
28th May 20266011 PMAQI
29th May 20265912 AMAQI
29th May 2026581 AMAQI
29th May 2026432 AMAQI
29th May 2026443 AMAQI
29th May 2026464 AMAQI

21°C18/25°C

29th May 2026785 AMAQI
29th May 2026626 AMAQI
29th May 2026667 AMAQI
29th May 2026788 AMAQI
29th May 2026949 AMAQI
29th May 20269110 AMAQI
29th May 20269111 AMAQI
29th May 20268812 PMAQI
29th May 2026851 PMAQI
29th May 2026752 PMAQI
29th May 2026843 PMAQI
29th May 2026724 PMAQI
29th May 2026625 PMAQI
29th May 2026426 PMAQI
29th May 2026267 PMAQI
29th May 2026308 PMAQI
29th May 2026439 PMAQI
29th May 20264810 PMAQI
29th May 20265511 PMAQI
30th May 20265812 AMAQI
30th May 2026621 AMAQI
30th May 2026702 AMAQI
30th May 2026653 AMAQI
30th May 2026684 AMAQI

21°C16/27°C

30th May 2026775 AMAQI
30th May 2026826 AMAQI
30th May 2026827 AMAQI
30th May 2026788 AMAQI
30th May 2026759 AMAQI
30th May 20266610 AMAQI
30th May 20266411 AMAQI
30th May 20266912 PMAQI
30th May 2026631 PMAQI
30th May 2026572 PMAQI
30th May 2026523 PMAQI
30th May 2026494 PMAQI
30th May 2026495 PMAQI
30th May 2026466 PMAQI
30th May 2026437 PMAQI
30th May 2026438 PMAQI
30th May 2026519 PMAQI
30th May 20266410 PMAQI
30th May 20266611 PMAQI
31st May 20266512 AMAQI
31st May 2026651 AMAQI
31st May 2026652 AMAQI
31st May 2026683 AMAQI
31st May 2026744 AMAQI

23°C16/29°C

31st May 2026735 AMAQI
31st May 2026736 AMAQI
31st May 2026797 AMAQI
31st May 2026688 AMAQI
31st May 2026679 AMAQI
31st May 20266610 AMAQI
31st May 20265411 AMAQI
31st May 20264812 PMAQI
31st May 2026441 PMAQI
31st May 2026302 PMAQI
31st May 2026303 PMAQI
31st May 2026244 PMAQI
31st May 2026205 PMAQI
31st May 2026186 PMAQI
31st May 2026177 PMAQI
31st May 2026198 PMAQI
31st May 2026189 PMAQI
31st May 20262010 PMAQI
31st May 20262611 PMAQI
1st Jun 20263712 AMAQI
1st Jun 2026361 AMAQI
1st Jun 2026362 AMAQI
1st Jun 2026433 AMAQI
1st Jun 2026354 AMAQI

24°C18/31°C

1st Jun 2026365 AMAQI
1st Jun 2026386 AMAQI
1st Jun 2026427 AMAQI
1st Jun 2026408 AMAQI
1st Jun 2026449 AMAQI
1st Jun 20264610 AMAQI
1st Jun 20264511 AMAQI
1st Jun 20265412 PMAQI
1st Jun 2026501 PMAQI
1st Jun 2026442 PMAQI
1st Jun 2026393 PMAQI
1st Jun 2026334 PMAQI
1st Jun 2026345 PMAQI
1st Jun 2026376 PMAQI
1st Jun 2026397 PMAQI
1st Jun 2026488 PMAQI
1st Jun 2026549 PMAQI
1st Jun 20265410 PMAQI
1st Jun 20265611 PMAQI
2nd Jun 20265612 AMAQI
2nd Jun 2026541 AMAQI
2nd Jun 2026582 AMAQI
2nd Jun 2026543 AMAQI
2nd Jun 2026524 AMAQI

24°C20/28°C

2nd Jun 2026585 AMAQI
5 AM
2nd Jun 2026596 AMAQI
2nd Jun 2026607 AMAQI
2nd Jun 2026638 AMAQI
2nd Jun 2026669 AMAQI
2nd Jun 20266610 AMAQI
2nd Jun 20266611 AMAQI
2nd Jun 20265312 PMAQI
12 PM
2nd Jun 2026601 PMAQI
2nd Jun 2026712 PMAQI
2nd Jun 2026743 PMAQI
2nd Jun 2026754 PMAQI
2nd Jun 2026705 PMAQI
2nd Jun 2026596 PMAQI
2nd Jun 2026627 PMAQI
7 PM
2nd Jun 2026568 PMAQI
2nd Jun 2026499 PMAQI
2nd Jun 20265410 PMAQI
2nd Jun 20266011 PMAQI
12 AM
4 AM

26°C20/32°C

Day time
Avg. Highest Time
5 AM - 9 AM

57AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
6 PM - 7 PM

44AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 9 AM (Avg. 57), while the lowest AQI was between 6 PM to 7 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 4 AM

55AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
8 PM

44AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 55), while the lowest AQI was between 8 PM to 8 PM (Avg. 44).

2026 Days Vs Air Quality

Osan, Gyeonggi, South Korea

2026

35%

52

51%

76

14%

21

0.6%

1

Total number of days with different AQI categories in last 153 days in 2026 (212 days remaining)

Good
52 Days
Moderate
76 Days
Poor
21 Days
Unhealthy
1 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 35%

Health Risk Level:

High

In 2026, 35% of 153 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.

Annual Air Quality Insights

Osan, Gyeonggi, South Korea

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
34AQI (US)
2nd January 2026
40AQI (US)
3rd January 2026
60AQI (US)
4th January 2026
78AQI (US)
5th January 2026
64AQI (US)
6th January 2026
60AQI (US)
7th January 2026
59AQI (US)
8th January 2026
28AQI (US)
9th January 2026
45AQI (US)
10th January 2026
66AQI (US)
11th January 2026
31AQI (US)
12th January 2026
42AQI (US)
13th January 2026
43AQI (US)
14th January 2026
33AQI (US)
15th January 2026
93AQI (US)
16th January 2026
134AQI (US)
17th January 2026
130AQI (US)
18th January 2026
100AQI (US)
19th January 2026
64AQI (US)
20th January 2026
39AQI (US)
21st January 2026
40AQI (US)
22nd January 2026
34AQI (US)
23rd January 2026
58AQI (US)
24th January 2026
61AQI (US)
25th January 2026
28AQI (US)
26th January 2026
54AQI (US)
27th January 2026
60AQI (US)
28th January 2026
36AQI (US)
29th January 2026
48AQI (US)
30th January 2026
56AQI (US)
31st January 2026
65AQI (US)
1st February 2026
71AQI (US)
2nd February 2026
72AQI (US)
3rd February 2026
62AQI (US)
4th February 2026
120AQI (US)
5th February 2026
138AQI (US)
6th February 2026
65AQI (US)
7th February 2026
40AQI (US)
8th February 2026
45AQI (US)
9th February 2026
50AQI (US)
10th February 2026
87AQI (US)
11th February 2026
119AQI (US)
12th February 2026
121AQI (US)
13th February 2026
138AQI (US)
14th February 2026
151AQI (US)
15th February 2026
120AQI (US)
16th February 2026
49AQI (US)
17th February 2026
53AQI (US)
18th February 2026
52AQI (US)
19th February 2026
49AQI (US)
20th February 2026
84AQI (US)
21st February 2026
96AQI (US)
22nd February 2026
54AQI (US)
23rd February 2026
29AQI (US)
24th February 2026
36AQI (US)
25th February 2026
45AQI (US)
26th February 2026
34AQI (US)
27th February 2026
26AQI (US)
28th February 2026
40AQI (US)
1st March 2026
36AQI (US)
2nd March 2026
16AQI (US)
3rd March 2026
30AQI (US)
4th March 2026
64AQI (US)
5th March 2026
100AQI (US)
6th March 2026
70AQI (US)
7th March 2026
56AQI (US)
8th March 2026
57AQI (US)
9th March 2026
95AQI (US)
10th March 2026
110AQI (US)
11th March 2026
92AQI (US)
12th March 2026
111AQI (US)
13th March 2026
41AQI (US)
14th March 2026
50AQI (US)
15th March 2026
93AQI (US)
16th March 2026
131AQI (US)
17th March 2026
131AQI (US)
18th March 2026
116AQI (US)
19th March 2026
57AQI (US)
20th March 2026
64AQI (US)
21st March 2026
100AQI (US)
22nd March 2026
83AQI (US)
23rd March 2026
120AQI (US)
24th March 2026
103AQI (US)
25th March 2026
90AQI (US)
26th March 2026
117AQI (US)
27th March 2026
127AQI (US)
28th March 2026
113AQI (US)
29th March 2026
94AQI (US)
30th March 2026
86AQI (US)
31st March 2026
52AQI (US)
1st April 2026
57AQI (US)
2nd April 2026
99AQI (US)
3rd April 2026
120AQI (US)
4th April 2026
57AQI (US)
5th April 2026
82AQI (US)
6th April 2026
54AQI (US)
7th April 2026
27AQI (US)
8th April 2026
47AQI (US)
9th April 2026
43AQI (US)
10th April 2026
44AQI (US)
11th April 2026
86AQI (US)
12th April 2026
81AQI (US)
13th April 2026
83AQI (US)
14th April 2026
79AQI (US)
15th April 2026
120AQI (US)
16th April 2026
51AQI (US)
17th April 2026
18th April 2026
56AQI (US)
19th April 2026
69AQI (US)
20th April 2026
71AQI (US)
21st April 2026
65AQI (US)
22nd April 2026
23rd April 2026
48AQI (US)
24th April 2026
38AQI (US)
25th April 2026
58AQI (US)
26th April 2026
56AQI (US)
27th April 2026
56AQI (US)
28th April 2026
42AQI (US)
29th April 2026
51AQI (US)
30th April 2026
52AQI (US)
1st May 2026
50AQI (US)
2nd May 2026
104AQI (US)
3rd May 2026
48AQI (US)
4th May 2026
29AQI (US)
5th May 2026
43AQI (US)
6th May 2026
34AQI (US)
7th May 2026
38AQI (US)
8th May 2026
37AQI (US)
9th May 2026
10th May 2026
36AQI (US)
11th May 2026
34AQI (US)
12th May 2026
42AQI (US)
13th May 2026
53AQI (US)
14th May 2026
56AQI (US)
15th May 2026
69AQI (US)
16th May 2026
77AQI (US)
17th May 2026
65AQI (US)
18th May 2026
56AQI (US)
19th May 2026
52AQI (US)
20th May 2026
63AQI (US)
21st May 2026
66AQI (US)
22nd May 2026
77AQI (US)
23rd May 2026
71AQI (US)
24th May 2026
70AQI (US)
25th May 2026
65AQI (US)
26th May 2026
48AQI (US)
27th May 2026
31AQI (US)
28th May 2026
40AQI (US)
29th May 2026
63AQI (US)
30th May 2026
63AQI (US)
31st May 2026
47AQI (US)
1st June 2026
42AQI (US)
2nd June 2026
60AQI (US)
3rd June 2026
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

58AQI (US)

73AQI (US)

84AQI (US)

64AQI (US)

54AQI (US)

51AQI (US)

No. of days

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

202666AQI (US)

14
15
2
11
10
6
1
5
16
10
7
19
2
14
15
1
1
1
52
76
21
1

Highest AQI (US) recorded in

March

84AQI (US)

Lowest AQI (US) recorded in

June

51AQI (US)

202563AQI (US)

1
24
6
5
22
1
3
19
9
3
27
7
24
4
25
1
14
17
21
10
25
5
19
12
7
19
3
1
11
18
2
120
222
22
1

Highest AQI (US) recorded in

March

85AQI (US)

Lowest AQI (US) recorded in

September

43AQI (US)

202463AQI (US)

10
15
6
9
13
6
1
6
22
2
1
2
23
5
10
20
1
5
25
21
9
1
10
21
21
9
16
14
1
9
20
1
5
26
124
217
23
2

Highest AQI (US) recorded in

March

77AQI (US)

Lowest AQI (US) recorded in

September

43AQI (US)

202370AQI (US)

5
17
6
3
2
18
5
3
2
16
13
2
22
5
1
5
24
2
3
27
12
17
2
14
17
17
13
11
18
2
12
15
2
11
13
7
96
217
44
7

Highest AQI (US) recorded in

March

96AQI (US)

Lowest AQI (US) recorded in

September

51AQI (US)

202271AQI (US)

1
20
7
2
3
11
5
2
4
19
8
5
18
7
6
23
2
13
17
5
20
2
1
18
9
2
14
12
5
5
17
7
1
5
22
4
81
189
47
5

Highest AQI (US) recorded in

January

87AQI (US)

Lowest AQI (US) recorded in

August

38AQI (US)

202168AQI (US)

8
20
2
5
15
6
2
3
17
9
1
1
8
20
2
8
18
3
2
3
24
3
15
16
17
14
25
5
13
17
1
7
19
2
2
9
13
9
121
198
37
5
1
2

Highest AQI (US) recorded in

March

96AQI (US)

Lowest AQI (US) recorded in

September

39AQI (US)

202065AQI (US)

3
9
1
3
17
1
4
12
2
3
23
4
18
12
1
18
13
19
11
10
19
2
7
15
8
8
13
9
1
93
144
28
1

Highest AQI (US) recorded in

December

79AQI (US)

Lowest AQI (US) recorded in

September

47AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2022(Avg.)
71AQI (US)
Least Polluted Year Recorded
2024(Avg.)
63AQI (US)

Osan's annual 2026 AQI (US) (66) shows an average percentage change of -0.7% (improved AQI (US)) compared to previous years: 2020 (65), 2021 (68), 2022 (71), 2023 (70), 2024 (63), 2025 (63).