Country Background

Kiyoharadai, Utsunomiya, Tochigi, 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

Kiyoharadai, Utsunomiya, Tochigi, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
23rd Aug 2021
64AQI
Lowest AQI recorded on
30th Aug 2024
14AQI


Same Day Analysis (9th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 10th Aug - 11th Aug 2025

Kiyoharadai, Utsunomiya, Tochigi, Japan

AQI
Day
Night
.

4 AM10th Aug 2025

6 PM

3 AM11th Aug 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
2PM10th Aug

43AQI

Avg. Lowest Time
6PM10th Aug

27AQI

In the last 24 hours,

Kiyoharadai's AQI reached its highest point of 43 at 2 PM during the Night, while the lowest point, 27, was recorded at 6 PM during the Night between 10th Aug and 11th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Kiyoharadai, Utsunomiya, Tochigi, Japan

JulAug
12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th
Day
Night
12th Jul 2025584 AMAQI
12th Jul 2025575 AMAQI
12th Jul 2025566 AMAQI
12th Jul 2025567 AMAQI
12th Jul 2025578 AMAQI
12th Jul 2025309 AMAQI
12th Jul 20252410 AMAQI
12th Jul 20252911 AMAQI
12th Jul 20253212 PMAQI
12th Jul 2025391 PMAQI
12th Jul 2025422 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025465 PMAQI
12th Jul 2025446 PMAQI
12th Jul 2025457 PMAQI
12th Jul 2025458 PMAQI
12th Jul 2025549 PMAQI
12th Jul 20255410 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025541 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025563 AMAQI

22°C20/25°C

13th Jul 2025564 AMAQI
13th Jul 2025545 AMAQI
13th Jul 2025556 AMAQI
13th Jul 2025557 AMAQI
13th Jul 2025558 AMAQI
13th Jul 2025429 AMAQI
13th Jul 20252910 AMAQI
13th Jul 20253911 AMAQI
13th Jul 20255012 PMAQI
13th Jul 2025521 PMAQI
13th Jul 2025522 PMAQI
13th Jul 2025523 PMAQI
13th Jul 2025524 PMAQI
13th Jul 2025515 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025527 PMAQI
13th Jul 2025528 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255310 PMAQI
13th Jul 20255311 PMAQI
14th Jul 20255312 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025553 AMAQI

25°C20/30°C

14th Jul 2025544 AMAQI
14th Jul 2025545 AMAQI
14th Jul 2025546 AMAQI
14th Jul 2025547 AMAQI
14th Jul 2025548 AMAQI
14th Jul 2025289 AMAQI
14th Jul 20251910 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251812 PMAQI
14th Jul 2025301 PMAQI
14th Jul 2025322 PMAQI
14th Jul 2025303 PMAQI
14th Jul 2025304 PMAQI
14th Jul 2025285 PMAQI
14th Jul 2025306 PMAQI
14th Jul 2025297 PMAQI
14th Jul 2025368 PMAQI
14th Jul 2025519 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255111 PMAQI
15th Jul 20255112 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025522 AMAQI
15th Jul 2025543 AMAQI

24°C22/28°C

15th Jul 2025524 AMAQI
15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025269 AMAQI
15th Jul 20251910 AMAQI
15th Jul 20253311 AMAQI
15th Jul 20253012 PMAQI
15th Jul 2025341 PMAQI
15th Jul 2025312 PMAQI
15th Jul 2025323 PMAQI
15th Jul 2025324 PMAQI
15th Jul 2025315 PMAQI
15th Jul 2025356 PMAQI
15th Jul 2025347 PMAQI
15th Jul 2025378 PMAQI
15th Jul 2025489 PMAQI
15th Jul 20254810 PMAQI
15th Jul 20254811 PMAQI
16th Jul 20254812 AMAQI
16th Jul 2025491 AMAQI
16th Jul 2025512 AMAQI
16th Jul 2025523 AMAQI

25°C24/28°C

16th Jul 2025524 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025506 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025529 AMAQI
16th Jul 20255510 AMAQI
16th Jul 20255511 AMAQI
16th Jul 20255012 PMAQI
16th Jul 2025401 PMAQI
16th Jul 2025372 PMAQI
16th Jul 2025363 PMAQI
16th Jul 2025344 PMAQI
16th Jul 2025325 PMAQI
16th Jul 2025356 PMAQI
16th Jul 2025417 PMAQI
16th Jul 2025378 PMAQI
16th Jul 2025429 PMAQI
16th Jul 20254310 PMAQI
16th Jul 20254411 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025451 AMAQI
17th Jul 2025472 AMAQI
17th Jul 2025483 AMAQI

26°C23/29°C

17th Jul 2025484 AMAQI
17th Jul 2025495 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025498 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20251710 AMAQI
17th Jul 20252211 AMAQI
17th Jul 20253112 PMAQI
17th Jul 2025371 PMAQI
17th Jul 2025372 PMAQI
17th Jul 2025373 PMAQI
17th Jul 2025364 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025387 PMAQI
17th Jul 2025408 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254311 PMAQI
18th Jul 20254312 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025462 AMAQI
18th Jul 2025473 AMAQI

27°C25/31°C

18th Jul 2025464 AMAQI
18th Jul 2025445 AMAQI
18th Jul 2025446 AMAQI
18th Jul 2025447 AMAQI
18th Jul 2025438 AMAQI
18th Jul 2025329 AMAQI
18th Jul 20252910 AMAQI
18th Jul 20253011 AMAQI
18th Jul 20253612 PMAQI
18th Jul 2025381 PMAQI
18th Jul 2025382 PMAQI
18th Jul 2025373 PMAQI
18th Jul 2025364 PMAQI
18th Jul 2025375 PMAQI
18th Jul 2025366 PMAQI
18th Jul 2025337 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025419 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254211 PMAQI
19th Jul 20254212 AMAQI
19th Jul 2025431 AMAQI
19th Jul 2025452 AMAQI
19th Jul 2025443 AMAQI

27°C23/32°C

19th Jul 2025444 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025436 AMAQI
19th Jul 2025437 AMAQI
19th Jul 2025438 AMAQI
19th Jul 2025319 AMAQI
19th Jul 20253010 AMAQI
19th Jul 20253011 AMAQI
19th Jul 20253312 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025342 PMAQI
19th Jul 2025303 PMAQI
19th Jul 2025294 PMAQI
19th Jul 2025295 PMAQI
19th Jul 2025276 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025328 PMAQI
19th Jul 2025369 PMAQI
19th Jul 20253510 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025391 AMAQI
20th Jul 2025442 AMAQI
20th Jul 2025443 AMAQI

28°C23/33°C

20th Jul 2025444 AMAQI
20th Jul 2025415 AMAQI
20th Jul 2025426 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252811 AMAQI
20th Jul 20253812 PMAQI
20th Jul 2025421 PMAQI
20th Jul 2025432 PMAQI
20th Jul 2025453 PMAQI
20th Jul 2025484 PMAQI
20th Jul 2025485 PMAQI
20th Jul 2025436 PMAQI
20th Jul 2025427 PMAQI
20th Jul 2025388 PMAQI
20th Jul 2025329 PMAQI
20th Jul 20253310 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253212 AMAQI
21st Jul 2025341 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025413 AMAQI

29°C24/35°C

21st Jul 2025414 AMAQI
21st Jul 2025405 AMAQI
21st Jul 2025396 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025398 AMAQI
21st Jul 2025339 AMAQI
21st Jul 20253510 AMAQI
21st Jul 20254311 AMAQI
21st Jul 20255212 PMAQI
21st Jul 2025491 PMAQI
21st Jul 2025502 PMAQI
21st Jul 2025523 PMAQI
21st Jul 2025544 PMAQI
21st Jul 2025535 PMAQI
21st Jul 2025506 PMAQI
21st Jul 2025467 PMAQI
21st Jul 2025388 PMAQI
21st Jul 2025409 PMAQI
21st Jul 20254310 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20253912 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025372 AMAQI
22nd Jul 2025383 AMAQI

30°C25/36°C

22nd Jul 2025384 AMAQI
22nd Jul 2025405 AMAQI
22nd Jul 2025396 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025408 AMAQI
22nd Jul 2025349 AMAQI
22nd Jul 20253810 AMAQI
22nd Jul 20254811 AMAQI
22nd Jul 20255312 PMAQI
22nd Jul 2025551 PMAQI
22nd Jul 2025562 PMAQI
22nd Jul 2025563 PMAQI
22nd Jul 2025544 PMAQI
22nd Jul 2025545 PMAQI
22nd Jul 2025536 PMAQI
22nd Jul 2025507 PMAQI
22nd Jul 2025418 PMAQI
22nd Jul 2025379 PMAQI
22nd Jul 20253810 PMAQI
22nd Jul 20253811 PMAQI
23rd Jul 20253812 AMAQI
23rd Jul 2025391 AMAQI
23rd Jul 2025392 AMAQI
23rd Jul 2025393 AMAQI

30°C25/36°C

23rd Jul 2025394 AMAQI
23rd Jul 2025415 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025369 AMAQI
23rd Jul 20253610 AMAQI
23rd Jul 20254011 AMAQI
23rd Jul 20255112 PMAQI
23rd Jul 2025561 PMAQI
23rd Jul 2025582 PMAQI
23rd Jul 2025563 PMAQI
23rd Jul 2025564 PMAQI
23rd Jul 2025565 PMAQI
23rd Jul 2025506 PMAQI
23rd Jul 2025447 PMAQI
23rd Jul 2025398 PMAQI
23rd Jul 2025409 PMAQI
23rd Jul 20253710 PMAQI
23rd Jul 20253711 PMAQI
24th Jul 20253712 AMAQI
24th Jul 2025381 AMAQI
24th Jul 2025402 AMAQI
24th Jul 2025403 AMAQI

30°C25/36°C

24th Jul 2025424 AMAQI
24th Jul 2025435 AMAQI
24th Jul 2025436 AMAQI
24th Jul 2025427 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025359 AMAQI
24th Jul 20254410 AMAQI
24th Jul 20255411 AMAQI
24th Jul 20255712 PMAQI
24th Jul 2025571 PMAQI
24th Jul 2025602 PMAQI
24th Jul 2025583 PMAQI
24th Jul 2025584 PMAQI
24th Jul 2025575 PMAQI
24th Jul 2025566 PMAQI
24th Jul 2025567 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025519 PMAQI
24th Jul 20255110 PMAQI
24th Jul 20254511 PMAQI
25th Jul 20254012 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025392 AMAQI
25th Jul 2025403 AMAQI

30°C25/36°C

25th Jul 2025434 AMAQI
25th Jul 2025465 AMAQI
25th Jul 2025466 AMAQI
25th Jul 2025457 AMAQI
25th Jul 2025468 AMAQI
25th Jul 2025569 AMAQI
25th Jul 20256010 AMAQI
25th Jul 20256011 AMAQI
25th Jul 20255912 PMAQI
25th Jul 2025561 PMAQI
25th Jul 2025572 PMAQI
25th Jul 2025593 PMAQI
25th Jul 2025594 PMAQI
25th Jul 2025565 PMAQI
25th Jul 2025486 PMAQI
25th Jul 2025427 PMAQI
25th Jul 2025468 PMAQI
25th Jul 2025479 PMAQI
25th Jul 20254710 PMAQI
25th Jul 20254711 PMAQI
26th Jul 20254412 AMAQI
26th Jul 2025401 AMAQI
26th Jul 2025402 AMAQI
26th Jul 2025443 AMAQI

30°C24/37°C

26th Jul 2025454 AMAQI
26th Jul 2025475 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025477 AMAQI
26th Jul 2025478 AMAQI
26th Jul 2025529 AMAQI
26th Jul 20255610 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255212 PMAQI
26th Jul 2025521 PMAQI
26th Jul 2025552 PMAQI
26th Jul 2025553 PMAQI
26th Jul 2025544 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025606 PMAQI
26th Jul 2025597 PMAQI
26th Jul 2025518 PMAQI
26th Jul 2025439 PMAQI
26th Jul 20253810 PMAQI
26th Jul 20253811 PMAQI
27th Jul 20253612 AMAQI
27th Jul 2025371 AMAQI
27th Jul 2025422 AMAQI
27th Jul 2025463 AMAQI

30°C24/37°C

27th Jul 2025474 AMAQI
27th Jul 2025485 AMAQI
27th Jul 2025486 AMAQI
27th Jul 2025487 AMAQI
27th Jul 2025488 AMAQI
27th Jul 2025389 AMAQI
27th Jul 20253410 AMAQI
27th Jul 20254211 AMAQI
27th Jul 20254512 PMAQI
27th Jul 2025471 PMAQI
27th Jul 2025482 PMAQI
27th Jul 2025473 PMAQI
27th Jul 2025524 PMAQI
27th Jul 2025555 PMAQI
27th Jul 2025546 PMAQI
27th Jul 2025547 PMAQI
27th Jul 2025518 PMAQI
27th Jul 2025469 PMAQI
27th Jul 20254010 PMAQI
27th Jul 20253511 PMAQI
28th Jul 20253412 AMAQI
28th Jul 2025341 AMAQI
28th Jul 2025412 AMAQI
28th Jul 2025463 AMAQI

30°C25/36°C

28th Jul 2025464 AMAQI
28th Jul 2025455 AMAQI
28th Jul 2025456 AMAQI
28th Jul 2025457 AMAQI
28th Jul 2025448 AMAQI
28th Jul 2025379 AMAQI
28th Jul 20254110 AMAQI
28th Jul 20254411 AMAQI
28th Jul 20254412 PMAQI
28th Jul 2025501 PMAQI
28th Jul 2025512 PMAQI
28th Jul 2025513 PMAQI
28th Jul 2025524 PMAQI
28th Jul 2025535 PMAQI
28th Jul 2025526 PMAQI
28th Jul 2025467 PMAQI
28th Jul 2025438 PMAQI
28th Jul 2025449 PMAQI
28th Jul 20254610 PMAQI
28th Jul 20254811 PMAQI
29th Jul 20254412 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025422 AMAQI
29th Jul 2025433 AMAQI

31°C25/37°C

29th Jul 2025424 AMAQI
29th Jul 2025435 AMAQI
29th Jul 2025446 AMAQI
29th Jul 2025437 AMAQI
29th Jul 2025448 AMAQI
29th Jul 2025389 AMAQI
29th Jul 20254710 AMAQI
29th Jul 20255011 AMAQI
29th Jul 20255312 PMAQI
29th Jul 2025561 PMAQI
29th Jul 2025562 PMAQI
29th Jul 2025563 PMAQI
29th Jul 2025544 PMAQI
29th Jul 2025535 PMAQI
29th Jul 2025446 PMAQI
29th Jul 2025277 PMAQI
29th Jul 2025248 PMAQI
29th Jul 2025329 PMAQI
29th Jul 20253310 PMAQI
29th Jul 20253211 PMAQI
30th Jul 20253112 AMAQI
30th Jul 2025321 AMAQI
30th Jul 2025382 AMAQI
30th Jul 2025443 AMAQI

30°C26/37°C

30th Jul 2025454 AMAQI
30th Jul 2025465 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025467 AMAQI
30th Jul 2025458 AMAQI
30th Jul 2025279 AMAQI
30th Jul 20252010 AMAQI
30th Jul 20252211 AMAQI
30th Jul 20252512 PMAQI
30th Jul 2025281 PMAQI
30th Jul 2025292 PMAQI
30th Jul 2025303 PMAQI
30th Jul 2025394 PMAQI
30th Jul 2025445 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025327 PMAQI
30th Jul 2025328 PMAQI
30th Jul 2025369 PMAQI
30th Jul 20253910 PMAQI
30th Jul 20253811 PMAQI
31st Jul 20253812 AMAQI
31st Jul 2025401 AMAQI
31st Jul 2025442 AMAQI
31st Jul 2025423 AMAQI

28°C24/35°C

31st Jul 2025424 AMAQI
31st Jul 2025425 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025429 AMAQI
31st Jul 20254210 AMAQI
31st Jul 20253911 AMAQI
31st Jul 20253812 PMAQI
31st Jul 2025381 PMAQI
31st Jul 2025362 PMAQI
31st Jul 2025383 PMAQI
31st Jul 2025424 PMAQI
31st Jul 2025475 PMAQI
31st Jul 2025396 PMAQI
31st Jul 2025307 PMAQI
31st Jul 2025308 PMAQI
31st Jul 2025319 PMAQI
31st Jul 20253210 PMAQI
31st Jul 20252711 PMAQI
1st Aug 20252812 AMAQI
1st Aug 2025361 AMAQI
1st Aug 2025382 AMAQI
1st Aug 2025403 AMAQI

27°C23/34°C

1st Aug 2025394 AMAQI
1st Aug 2025395 AMAQI
1st Aug 2025396 AMAQI
1st Aug 2025387 AMAQI
1st Aug 2025388 AMAQI
1st Aug 2025329 AMAQI
1st Aug 20252210 AMAQI
1st Aug 20254111 AMAQI
1st Aug 20254812 PMAQI
1st Aug 2025461 PMAQI
1st Aug 2025342 PMAQI
1st Aug 2025323 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025405 PMAQI
1st Aug 2025416 PMAQI
1st Aug 2025297 PMAQI
1st Aug 2025288 PMAQI
1st Aug 2025319 PMAQI
1st Aug 20253210 PMAQI
1st Aug 20252811 PMAQI
2nd Aug 20253012 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025403 AMAQI

27°C23/31°C

2nd Aug 2025414 AMAQI
2nd Aug 2025405 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025408 AMAQI
2nd Aug 2025359 AMAQI
2nd Aug 20253110 AMAQI
2nd Aug 20253911 AMAQI
2nd Aug 20252412 PMAQI
2nd Aug 2025381 PMAQI
2nd Aug 2025512 PMAQI
2nd Aug 2025513 PMAQI
2nd Aug 2025474 PMAQI
2nd Aug 2025495 PMAQI
2nd Aug 2025516 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025438 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253510 PMAQI
2nd Aug 20254111 PMAQI
3rd Aug 20253212 AMAQI
3rd Aug 2025351 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI

30°C26/37°C

3rd Aug 2025404 AMAQI
3rd Aug 2025395 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025459 AMAQI
3rd Aug 20255010 AMAQI
3rd Aug 20254711 AMAQI
3rd Aug 20255812 PMAQI
3rd Aug 2025541 PMAQI
3rd Aug 2025592 PMAQI
3rd Aug 2025523 PMAQI
3rd Aug 2025524 PMAQI
3rd Aug 2025555 PMAQI
3rd Aug 2025576 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025488 PMAQI
3rd Aug 2025409 PMAQI
3rd Aug 20253810 PMAQI
3rd Aug 20253911 PMAQI
4th Aug 20253212 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI

30°C26/36°C

4th Aug 2025424 AMAQI
4th Aug 2025425 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025427 AMAQI
4th Aug 2025448 AMAQI
4th Aug 2025459 AMAQI
4th Aug 20255010 AMAQI
4th Aug 20256111 AMAQI
4th Aug 20257212 PMAQI
4th Aug 2025641 PMAQI
4th Aug 2025732 PMAQI
4th Aug 2025703 PMAQI
4th Aug 2025784 PMAQI
4th Aug 2025755 PMAQI
4th Aug 2025696 PMAQI
4th Aug 2025687 PMAQI
4th Aug 2025628 PMAQI
4th Aug 2025599 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20255111 PMAQI
5th Aug 20255212 AMAQI
5th Aug 2025441 AMAQI
5th Aug 2025412 AMAQI
5th Aug 2025413 AMAQI

30°C25/37°C

5th Aug 2025484 AMAQI
5th Aug 2025515 AMAQI
5th Aug 2025516 AMAQI
5th Aug 2025487 AMAQI
5th Aug 2025518 AMAQI
5th Aug 2025549 AMAQI
5th Aug 20256010 AMAQI
5th Aug 20255811 AMAQI
5th Aug 20256712 PMAQI
5th Aug 2025551 PMAQI
5th Aug 2025552 PMAQI
5th Aug 2025523 PMAQI
5th Aug 2025604 PMAQI
5th Aug 2025565 PMAQI
5th Aug 2025566 PMAQI
5th Aug 2025487 PMAQI
5th Aug 2025498 PMAQI
5th Aug 2025459 PMAQI
5th Aug 20254410 PMAQI
5th Aug 20254011 PMAQI
6th Aug 20254412 AMAQI
6th Aug 2025481 AMAQI
6th Aug 2025502 AMAQI
6th Aug 2025503 AMAQI

32°C27/39°C

6th Aug 2025524 AMAQI
6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025399 AMAQI
6th Aug 20253410 AMAQI
6th Aug 20253811 AMAQI
6th Aug 20254812 PMAQI
6th Aug 2025441 PMAQI
6th Aug 2025452 PMAQI
6th Aug 2025423 PMAQI
6th Aug 2025404 PMAQI
6th Aug 2025485 PMAQI
6th Aug 2025406 PMAQI
6th Aug 2025467 PMAQI
6th Aug 2025518 PMAQI
6th Aug 2025449 PMAQI
6th Aug 20254610 PMAQI
6th Aug 20254411 PMAQI
7th Aug 20254412 AMAQI
7th Aug 2025501 AMAQI
7th Aug 2025512 AMAQI
7th Aug 2025483 AMAQI

29°C26/36°C

7th Aug 2025504 AMAQI
7th Aug 2025495 AMAQI
7th Aug 2025496 AMAQI
7th Aug 2025437 AMAQI
7th Aug 2025488 AMAQI
7th Aug 2025409 AMAQI
7th Aug 20253710 AMAQI
7th Aug 20254111 AMAQI
7th Aug 20252912 PMAQI
7th Aug 2025261 PMAQI
7th Aug 2025252 PMAQI
7th Aug 2025233 PMAQI
7th Aug 2025284 PMAQI
7th Aug 2025315 PMAQI
7th Aug 2025346 PMAQI
7th Aug 2025337 PMAQI
7th Aug 2025388 PMAQI
7th Aug 2025469 PMAQI
7th Aug 20254410 PMAQI
7th Aug 20254211 PMAQI
8th Aug 20254012 AMAQI
8th Aug 2025391 AMAQI
8th Aug 2025442 AMAQI
8th Aug 2025483 AMAQI

27°C25/31°C

8th Aug 2025474 AMAQI
8th Aug 2025445 AMAQI
8th Aug 2025436 AMAQI
8th Aug 2025447 AMAQI
8th Aug 2025448 AMAQI
8th Aug 2025409 AMAQI
8th Aug 20253310 AMAQI
8th Aug 20252811 AMAQI
8th Aug 20253312 PMAQI
8th Aug 2025351 PMAQI
8th Aug 2025322 PMAQI
8th Aug 2025243 PMAQI
8th Aug 2025264 PMAQI
8th Aug 2025305 PMAQI
8th Aug 2025316 PMAQI
8th Aug 2025327 PMAQI
8th Aug 2025348 PMAQI
8th Aug 2025389 PMAQI
8th Aug 20253610 PMAQI
8th Aug 20253611 PMAQI
9th Aug 20253712 AMAQI
9th Aug 2025381 AMAQI
9th Aug 2025402 AMAQI
9th Aug 2025443 AMAQI

26°C22/34°C

9th Aug 2025444 AMAQI
9th Aug 2025425 AMAQI
9th Aug 2025426 AMAQI
9th Aug 2025407 AMAQI
9th Aug 2025418 AMAQI
9th Aug 2025309 AMAQI
9th Aug 20252610 AMAQI
9th Aug 20252411 AMAQI
9th Aug 20253212 PMAQI
9th Aug 2025381 PMAQI
9th Aug 2025292 PMAQI
9th Aug 2025323 PMAQI
9th Aug 2025384 PMAQI
9th Aug 2025335 PMAQI
9th Aug 2025356 PMAQI
9th Aug 2025377 PMAQI
9th Aug 2025388 PMAQI
9th Aug 2025449 PMAQI
9th Aug 20254510 PMAQI
9th Aug 20254411 PMAQI
10th Aug 20253812 AMAQI
10th Aug 2025361 AMAQI
10th Aug 2025422 AMAQI
10th Aug 2025423 AMAQI

26°C21/32°C

10th Aug 2025424 AMAQI
10th Aug 2025405 AMAQI
10th Aug 2025396 AMAQI
10th Aug 2025397 AMAQI
10th Aug 2025408 AMAQI
10th Aug 2025369 AMAQI
10th Aug 20253210 AMAQI
10th Aug 20253611 AMAQI
10th Aug 20254212 PMAQI
10th Aug 2025421 PMAQI
10th Aug 2025432 PMAQI
10th Aug 2025413 PMAQI
10th Aug 2025334 PMAQI
10th Aug 2025275 PMAQI
10th Aug 2025276 PMAQI
10th Aug 2025307 PMAQI
10th Aug 2025298 PMAQI
10th Aug 2025329 PMAQI
10th Aug 20253010 PMAQI
10th Aug 20253111 PMAQI
11th Aug 20253012 AMAQI
11th Aug 2025301 AMAQI
11th Aug 2025362 AMAQI
11th Aug 2025403 AMAQI

--°C/°C

11th Aug 2025414 AMAQI
4 AM
11 AM
6 PM
11 PM
3 AM

--°C/°C

Day time
Avg. Highest Time
4 AM - 8 AM

45AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
9 AM - 10 AM

37AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 45), while the lowest AQI was between 9 AM to 10 AM (Avg. 37).
Night time
Avg. Highest Time
2 AM - 3 AM

45AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 1 AM

41AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 3 AM (Avg. 45), while the lowest AQI was between 12 AM to 1 AM (Avg. 41).

2025 Days Vs Air Quality

Kiyoharadai, Utsunomiya, Tochigi, Japan

2025

86%

191

14%

30

Total number of days with different AQI categories in last 222 days in 2025 (143 days remaining)

Good
191 Days
Moderate
30 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 86%

Health Risk Level:

Low

In 2025, 86% of 222 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

Kiyoharadai, Utsunomiya, Tochigi, 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.

1st January 2025
28AQI
2nd January 2025
30AQI
3rd January 2025
24AQI
4th January 2025
25AQI
5th January 2025
31AQI
6th January 2025
51AQI
7th January 2025
31AQI
8th January 2025
34AQI
9th January 2025
31AQI
10th January 2025
27AQI
11th January 2025
29AQI
12th January 2025
31AQI
13th January 2025
34AQI
14th January 2025
40AQI
15th January 2025
36AQI
16th January 2025
35AQI
17th January 2025
35AQI
18th January 2025
32AQI
19th January 2025
56AQI
20th January 2025
40AQI
21st January 2025
45AQI
22nd January 2025
39AQI
23rd January 2025
44AQI
24th January 2025
47AQI
25th January 2025
36AQI
26th January 2025
34AQI
27th January 2025
32AQI
28th January 2025
37AQI
29th January 2025
30AQI
30th January 2025
33AQI
31st January 2025
29AQI
1st February 2025
30AQI
2nd February 2025
35AQI
3rd February 2025
33AQI
4th February 2025
31AQI
5th February 2025
33AQI
6th February 2025
29AQI
7th February 2025
29AQI
8th February 2025
31AQI
9th February 2025
27AQI
10th February 2025
29AQI
11th February 2025
28AQI
12th February 2025
36AQI
13th February 2025
34AQI
14th February 2025
32AQI
15th February 2025
28AQI
16th February 2025
39AQI
17th February 2025
38AQI
18th February 2025
31AQI
19th February 2025
28AQI
20th February 2025
29AQI
21st February 2025
31AQI
22nd February 2025
30AQI
23rd February 2025
31AQI
24th February 2025
31AQI
25th February 2025
42AQI
26th February 2025
40AQI
27th February 2025
43AQI
28th February 2025
49AQI
1st March 2025
53AQI
2nd March 2025
58AQI
3rd March 2025
37AQI
4th March 2025
38AQI
5th March 2025
26AQI
6th March 2025
34AQI
7th March 2025
29AQI
8th March 2025
40AQI
9th March 2025
36AQI
10th March 2025
38AQI
11th March 2025
47AQI
12th March 2025
48AQI
13th March 2025
49AQI
14th March 2025
46AQI
15th March 2025
44AQI
16th March 2025
27AQI
17th March 2025
25AQI
18th March 2025
25AQI
19th March 2025
20AQI
20th March 2025
28AQI
21st March 2025
39AQI
22nd March 2025
51AQI
23rd March 2025
54AQI
24th March 2025
53AQI
25th March 2025
70AQI
26th March 2025
65AQI
27th March 2025
70AQI
28th March 2025
56AQI
29th March 2025
37AQI
30th March 2025
38AQI
31st March 2025
33AQI
1st April 2025
27AQI
2nd April 2025
22AQI
3rd April 2025
22AQI
4th April 2025
23AQI
5th April 2025
29AQI
6th April 2025
27AQI
7th April 2025
29AQI
8th April 2025
42AQI
9th April 2025
29AQI
10th April 2025
46AQI
11th April 2025
40AQI
12th April 2025
39AQI
13th April 2025
26AQI
14th April 2025
26AQI
15th April 2025
29AQI
16th April 2025
26AQI
17th April 2025
45AQI
18th April 2025
54AQI
19th April 2025
66AQI
20th April 2025
61AQI
21st April 2025
45AQI
22nd April 2025
52AQI
23rd April 2025
30AQI
24th April 2025
39AQI
25th April 2025
33AQI
26th April 2025
48AQI
27th April 2025
45AQI
28th April 2025
54AQI
29th April 2025
33AQI
30th April 2025
46AQI
1st May 2025
43AQI
2nd May 2025
32AQI
3rd May 2025
33AQI
4th May 2025
33AQI
5th May 2025
36AQI
6th May 2025
31AQI
7th May 2025
26AQI
8th May 2025
31AQI
9th May 2025
37AQI
10th May 2025
20AQI
11th May 2025
23AQI
12th May 2025
21AQI
13th May 2025
37AQI
14th May 2025
41AQI
15th May 2025
44AQI
16th May 2025
49AQI
17th May 2025
30AQI
18th May 2025
39AQI
19th May 2025
41AQI
20th May 2025
55AQI
21st May 2025
61AQI
22nd May 2025
52AQI
23rd May 2025
49AQI
24th May 2025
41AQI
25th May 2025
31AQI
26th May 2025
30AQI
27th May 2025
26AQI
28th May 2025
26AQI
29th May 2025
31AQI
30th May 2025
26AQI
31st May 2025
18AQI
1st June 2025
22AQI
2nd June 2025
35AQI
3rd June 2025
37AQI
4th June 2025
31AQI
5th June 2025
38AQI
6th June 2025
49AQI
7th June 2025
54AQI
8th June 2025
63AQI
9th June 2025
57AQI
10th June 2025
45AQI
11th June 2025
35AQI
12th June 2025
38AQI
13th June 2025
41AQI
14th June 2025
39AQI
15th June 2025
28AQI
16th June 2025
33AQI
17th June 2025
35AQI
18th June 2025
34AQI
19th June 2025
38AQI
20th June 2025
38AQI
21st June 2025
35AQI
22nd June 2025
33AQI
23rd June 2025
33AQI
24th June 2025
33AQI
25th June 2025
29AQI
26th June 2025
30AQI
27th June 2025
33AQI
28th June 2025
34AQI
29th June 2025
38AQI
30th June 2025
42AQI
1st July 2025
43AQI
2nd July 2025
43AQI
3rd July 2025
48AQI
4th July 2025
48AQI
5th July 2025
51AQI
6th July 2025
54AQI
7th July 2025
63AQI
8th July 2025
67AQI
9th July 2025
71AQI
10th July 2025
56AQI
11th July 2025
48AQI
12th July 2025
49AQI
13th July 2025
52AQI
14th July 2025
43AQI
15th July 2025
43AQI
16th July 2025
45AQI
17th July 2025
41AQI
18th July 2025
40AQI
19th July 2025
36AQI
20th July 2025
39AQI
21st July 2025
43AQI
22nd July 2025
43AQI
23rd July 2025
43AQI
24th July 2025
48AQI
25th July 2025
48AQI
26th July 2025
49AQI
27th July 2025
46AQI
28th July 2025
45AQI
29th July 2025
42AQI
30th July 2025
36AQI
31st July 2025
38AQI
1st August 2025
36AQI
2nd August 2025
41AQI
3rd August 2025
45AQI
4th August 2025
54AQI
5th August 2025
50AQI
6th August 2025
46AQI
7th August 2025
40AQI
8th August 2025
37AQI
9th August 2025
37AQI

35AQI

33AQI

42AQI

38AQI

35AQI

38AQI

47AQI

43AQI


No. of days

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

202539AQI

29
2
28
22
9
25
5
28
3
27
3
24
7
8
1
191
30

Highest AQI recorded in

July

47AQI


Lowest AQI recorded in

February

33AQI


202437AQI

31
28
1
23
8
20
9
1
25
6
26
4
21
10
31
28
2
29
2
28
2
31
321
44
1

Highest AQI recorded in

April

49AQI


Lowest AQI recorded in

August

29AQI


202339AQI

7
6
27
4
22
8
23
8
29
2
29
1
29
2
21
8
26
5
213
44

Highest AQI recorded in

April

46AQI


Lowest AQI recorded in

October

33AQI


202238AQI

27
4
17
4
23
8
21
9
25
6
23
7
19
5
1
28
28
3
9
3
221
49

Highest AQI recorded in

April

43AQI


Lowest AQI recorded in

September

30AQI


202139AQI

27
4
22
6
24
5
20
1
28
3
22
8
29
2
26
5
28
2
26
5
27
3
24
7
303
51

Highest AQI recorded in

June

44AQI


Lowest AQI recorded in

October

36AQI


202038AQI

12
1
19
2
18
24
6
31
18
13
18
1
28
3
21
9
25
6
214
41

Highest AQI recorded in

August

48AQI


Lowest AQI recorded in

September

31AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2021(Avg.)
39AQI
Least Polluted Year Recorded
2024(Avg.)
37AQI


Kiyoharadai's annual 2025 AQI (39) shows an average percentage change of 1.4% (worsened AQI) compared to previous years: 2020 (38), 2021 (39), 2022 (38), 2023 (39), 2024 (37).