Country Background

Shikawatashi, Yotsukaido, Chiba, 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

Shikawatashi, Yotsukaido, Chiba, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
28th Aug 2021
68AQI
Lowest AQI recorded on
21st Aug 2023
11AQI


Same Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 48 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 5th Aug - 6th Aug 2025

Shikawatashi, Yotsukaido, Chiba, Japan

AQI
Day
Night
.

4 AM5th Aug 2025

6 PM

3 AM6th Aug 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
10AM5th Aug

66AQI

Avg. Lowest Time
11PM5th Aug

41AQI

In the last 24 hours,

Shikawatashi's AQI reached its highest point of 66 at 10 AM during the Night, while the lowest point, 41, was recorded at 11 PM during the Night between 5th Aug and 6th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Shikawatashi, Yotsukaido, Chiba, Japan

JulAug
07th - 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 - 04th04th - 05th05th - 06th06th
Day
Night
7th Jul 2025514 AMAQI
7th Jul 2025545 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025548 AMAQI
7th Jul 2025889 AMAQI
7th Jul 202511410 AMAQI
7th Jul 202511211 AMAQI
7th Jul 20259712 PMAQI
7th Jul 2025861 PMAQI
7th Jul 2025852 PMAQI
7th Jul 2025843 PMAQI
7th Jul 2025864 PMAQI
7th Jul 2025885 PMAQI
7th Jul 2025876 PMAQI
7th Jul 2025967 PMAQI
7th Jul 2025948 PMAQI
7th Jul 2025729 PMAQI
7th Jul 20257110 PMAQI
7th Jul 20257111 PMAQI
8th Jul 20256912 AMAQI
8th Jul 2025591 AMAQI
8th Jul 2025572 AMAQI
8th Jul 2025573 AMAQI

29°C26/33°C

8th Jul 2025584 AMAQI
8th Jul 2025635 AMAQI
8th Jul 2025636 AMAQI
8th Jul 2025637 AMAQI
8th Jul 2025638 AMAQI
8th Jul 2025889 AMAQI
8th Jul 20259510 AMAQI
8th Jul 20259511 AMAQI
8th Jul 20259312 PMAQI
8th Jul 2025871 PMAQI
8th Jul 2025842 PMAQI
8th Jul 2025843 PMAQI
8th Jul 2025844 PMAQI
8th Jul 2025855 PMAQI
8th Jul 2025846 PMAQI
8th Jul 2025857 PMAQI
8th Jul 2025828 PMAQI
8th Jul 2025769 PMAQI
8th Jul 20257810 PMAQI
8th Jul 20258011 PMAQI
9th Jul 20257712 AMAQI
9th Jul 2025671 AMAQI
9th Jul 2025642 AMAQI
9th Jul 2025653 AMAQI

29°C26/33°C

9th Jul 2025674 AMAQI
9th Jul 2025725 AMAQI
9th Jul 2025716 AMAQI
9th Jul 2025727 AMAQI
9th Jul 2025728 AMAQI
9th Jul 2025809 AMAQI
9th Jul 20259110 AMAQI
9th Jul 20259511 AMAQI
9th Jul 202510212 PMAQI
9th Jul 2025981 PMAQI
9th Jul 20251002 PMAQI
9th Jul 20251093 PMAQI
9th Jul 20251124 PMAQI
9th Jul 2025925 PMAQI
9th Jul 2025676 PMAQI
9th Jul 2025617 PMAQI
9th Jul 2025608 PMAQI
9th Jul 2025659 PMAQI
9th Jul 20256410 PMAQI
9th Jul 20256311 PMAQI
10th Jul 20256312 AMAQI
10th Jul 2025701 AMAQI
10th Jul 2025722 AMAQI
10th Jul 2025713 AMAQI

29°C26/32°C

10th Jul 2025734 AMAQI
10th Jul 2025785 AMAQI
10th Jul 2025776 AMAQI
10th Jul 2025787 AMAQI
10th Jul 2025788 AMAQI
10th Jul 2025359 AMAQI
10th Jul 20252210 AMAQI
10th Jul 20254411 AMAQI
10th Jul 20254612 PMAQI
10th Jul 2025481 PMAQI
10th Jul 2025432 PMAQI
10th Jul 2025473 PMAQI
10th Jul 2025484 PMAQI
10th Jul 2025475 PMAQI
10th Jul 2025526 PMAQI
10th Jul 2025537 PMAQI
10th Jul 2025558 PMAQI
10th Jul 2025629 PMAQI
10th Jul 20256110 PMAQI
10th Jul 20256011 PMAQI
11th Jul 20256112 AMAQI
11th Jul 2025661 AMAQI
11th Jul 2025692 AMAQI
11th Jul 2025683 AMAQI

27°C22/32°C

11th Jul 2025684 AMAQI
11th Jul 2025645 AMAQI
11th Jul 2025646 AMAQI
11th Jul 2025647 AMAQI
11th Jul 2025648 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251610 AMAQI
11th Jul 20251611 AMAQI
11th Jul 20252212 PMAQI
11th Jul 2025401 PMAQI
11th Jul 2025392 PMAQI
11th Jul 2025393 PMAQI
11th Jul 2025404 PMAQI
11th Jul 2025435 PMAQI
11th Jul 2025426 PMAQI
11th Jul 2025417 PMAQI
11th Jul 2025478 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20255810 PMAQI
11th Jul 20255811 PMAQI
12th Jul 20256012 AMAQI
12th Jul 2025631 AMAQI
12th Jul 2025642 AMAQI
12th Jul 2025643 AMAQI

23°C22/26°C

12th Jul 2025634 AMAQI
12th Jul 2025615 AMAQI
12th Jul 2025616 AMAQI
12th Jul 2025617 AMAQI
12th Jul 2025618 AMAQI
12th Jul 2025399 AMAQI
12th Jul 20253110 AMAQI
12th Jul 20253411 AMAQI
12th Jul 20253912 PMAQI
12th Jul 2025481 PMAQI
12th Jul 2025482 PMAQI
12th Jul 2025483 PMAQI
12th Jul 2025414 PMAQI
12th Jul 2025495 PMAQI
12th Jul 2025516 PMAQI
12th Jul 2025477 PMAQI
12th Jul 2025508 PMAQI
12th Jul 2025569 PMAQI
12th Jul 20255610 PMAQI
12th Jul 20255711 PMAQI
13th Jul 20255712 AMAQI
13th Jul 2025601 AMAQI
13th Jul 2025602 AMAQI
13th Jul 2025613 AMAQI

24°C21/27°C

13th Jul 2025604 AMAQI
13th Jul 2025585 AMAQI
13th Jul 2025586 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025588 AMAQI
13th Jul 2025429 AMAQI
13th Jul 20253210 AMAQI
13th Jul 20253511 AMAQI
13th Jul 20253812 PMAQI
13th Jul 2025441 PMAQI
13th Jul 2025422 PMAQI
13th Jul 2025393 PMAQI
13th Jul 2025424 PMAQI
13th Jul 2025405 PMAQI
13th Jul 2025386 PMAQI
13th Jul 2025357 PMAQI
13th Jul 2025398 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255312 AMAQI
14th Jul 2025561 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI

26°C23/29°C

14th Jul 2025584 AMAQI
14th Jul 2025565 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025279 AMAQI
14th Jul 20251710 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251812 PMAQI
14th Jul 2025261 PMAQI
14th Jul 2025282 PMAQI
14th Jul 2025273 PMAQI
14th Jul 2025324 PMAQI
14th Jul 2025295 PMAQI
14th Jul 2025306 PMAQI
14th Jul 2025317 PMAQI
14th Jul 2025348 PMAQI
14th Jul 2025519 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255111 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025552 AMAQI
15th Jul 2025553 AMAQI

25°C24/28°C

15th Jul 2025544 AMAQI
15th Jul 2025525 AMAQI
15th Jul 2025536 AMAQI
15th Jul 2025537 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20251710 AMAQI
15th Jul 20251611 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025251 PMAQI
15th Jul 2025262 PMAQI
15th Jul 2025303 PMAQI
15th Jul 2025304 PMAQI
15th Jul 2025305 PMAQI
15th Jul 2025356 PMAQI
15th Jul 2025337 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025469 PMAQI
15th Jul 20254610 PMAQI
15th Jul 20254711 PMAQI
16th Jul 20254812 AMAQI
16th Jul 2025521 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI

26°C25/28°C

16th Jul 2025524 AMAQI
16th Jul 2025495 AMAQI
16th Jul 2025506 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025319 AMAQI
16th Jul 20252710 AMAQI
16th Jul 20252411 AMAQI
16th Jul 20252012 PMAQI
16th Jul 2025271 PMAQI
16th Jul 2025262 PMAQI
16th Jul 2025263 PMAQI
16th Jul 2025274 PMAQI
16th Jul 2025275 PMAQI
16th Jul 2025306 PMAQI
16th Jul 2025287 PMAQI
16th Jul 2025298 PMAQI
16th Jul 2025429 PMAQI
16th Jul 20254110 PMAQI
16th Jul 20254211 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025491 AMAQI
17th Jul 2025492 AMAQI
17th Jul 2025493 AMAQI

26°C25/27°C

17th Jul 2025484 AMAQI
17th Jul 2025475 AMAQI
17th Jul 2025476 AMAQI
17th Jul 2025477 AMAQI
17th Jul 2025468 AMAQI
17th Jul 2025319 AMAQI
17th Jul 20252610 AMAQI
17th Jul 20252511 AMAQI
17th Jul 20253012 PMAQI
17th Jul 2025401 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025383 PMAQI
17th Jul 2025364 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025346 PMAQI
17th Jul 2025337 PMAQI
17th Jul 2025388 PMAQI
17th Jul 2025439 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254411 PMAQI
18th Jul 20254312 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025482 AMAQI
18th Jul 2025483 AMAQI

27°C25/30°C

18th Jul 2025464 AMAQI
18th Jul 2025455 AMAQI
18th Jul 2025446 AMAQI
18th Jul 2025457 AMAQI
18th Jul 2025458 AMAQI
18th Jul 2025339 AMAQI
18th Jul 20252510 AMAQI
18th Jul 20253011 AMAQI
18th Jul 20253012 PMAQI
18th Jul 2025331 PMAQI
18th Jul 2025342 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025324 PMAQI
18th Jul 2025365 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025287 PMAQI
18th Jul 2025358 PMAQI
18th Jul 2025419 PMAQI
18th Jul 20254110 PMAQI
18th Jul 20254211 PMAQI
19th Jul 20254212 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025462 AMAQI
19th Jul 2025463 AMAQI

27°C25/31°C

19th Jul 2025444 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025436 AMAQI
19th Jul 2025447 AMAQI
19th Jul 2025448 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252710 AMAQI
19th Jul 20253211 AMAQI
19th Jul 20253212 PMAQI
19th Jul 2025291 PMAQI
19th Jul 2025222 PMAQI
19th Jul 2025263 PMAQI
19th Jul 2025294 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025226 PMAQI
19th Jul 2025257 PMAQI
19th Jul 2025288 PMAQI
19th Jul 2025329 PMAQI
19th Jul 20253210 PMAQI
19th Jul 20253111 PMAQI
20th Jul 20253512 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025442 AMAQI
20th Jul 2025443 AMAQI

27°C25/30°C

20th Jul 2025434 AMAQI
20th Jul 2025415 AMAQI
20th Jul 2025416 AMAQI
20th Jul 2025417 AMAQI
20th Jul 2025418 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20252110 AMAQI
20th Jul 20252211 AMAQI
20th Jul 20252512 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025222 PMAQI
20th Jul 2025193 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025225 PMAQI
20th Jul 2025276 PMAQI
20th Jul 2025327 PMAQI
20th Jul 2025328 PMAQI
20th Jul 2025359 PMAQI
20th Jul 20253210 PMAQI
20th Jul 20253111 PMAQI
21st Jul 20253312 AMAQI
21st Jul 2025401 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025423 AMAQI

28°C25/31°C

21st Jul 2025414 AMAQI
21st Jul 2025385 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025378 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252610 AMAQI
21st Jul 20253311 AMAQI
21st Jul 20253512 PMAQI
21st Jul 2025411 PMAQI
21st Jul 2025392 PMAQI
21st Jul 2025423 PMAQI
21st Jul 2025374 PMAQI
21st Jul 2025355 PMAQI
21st Jul 2025286 PMAQI
21st Jul 2025317 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025329 PMAQI
21st Jul 20253010 PMAQI
21st Jul 20252711 PMAQI
22nd Jul 20252612 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025392 AMAQI
22nd Jul 2025383 AMAQI

29°C26/32°C

22nd Jul 2025384 AMAQI
22nd Jul 2025385 AMAQI
22nd Jul 2025386 AMAQI
22nd Jul 2025387 AMAQI
22nd Jul 2025388 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252610 AMAQI
22nd Jul 20253811 AMAQI
22nd Jul 20254312 PMAQI
22nd Jul 2025501 PMAQI
22nd Jul 2025492 PMAQI
22nd Jul 2025463 PMAQI
22nd Jul 2025424 PMAQI
22nd Jul 2025365 PMAQI
22nd Jul 2025296 PMAQI
22nd Jul 2025267 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025289 PMAQI
22nd Jul 20253010 PMAQI
22nd Jul 20252811 PMAQI
23rd Jul 20252812 AMAQI
23rd Jul 2025321 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI

29°C26/33°C

23rd Jul 2025384 AMAQI
23rd Jul 2025385 AMAQI
23rd Jul 2025386 AMAQI
23rd Jul 2025387 AMAQI
23rd Jul 2025388 AMAQI
23rd Jul 2025299 AMAQI
23rd Jul 20253010 AMAQI
23rd Jul 20254211 AMAQI
23rd Jul 20255612 PMAQI
23rd Jul 2025561 PMAQI
23rd Jul 2025552 PMAQI
23rd Jul 2025463 PMAQI
23rd Jul 2025444 PMAQI
23rd Jul 2025395 PMAQI
23rd Jul 2025366 PMAQI
23rd Jul 2025297 PMAQI
23rd Jul 2025258 PMAQI
23rd Jul 2025289 PMAQI
23rd Jul 20252710 PMAQI
23rd Jul 20252711 PMAQI
24th Jul 20253012 AMAQI
24th Jul 2025361 AMAQI
24th Jul 2025372 AMAQI
24th Jul 2025373 AMAQI

29°C26/33°C

24th Jul 2025374 AMAQI
24th Jul 2025405 AMAQI
24th Jul 2025396 AMAQI
24th Jul 2025397 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025299 AMAQI
24th Jul 20253110 AMAQI
24th Jul 20253811 AMAQI
24th Jul 20255412 PMAQI
24th Jul 2025631 PMAQI
24th Jul 2025652 PMAQI
24th Jul 2025623 PMAQI
24th Jul 2025484 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025266 PMAQI
24th Jul 2025227 PMAQI
24th Jul 2025268 PMAQI
24th Jul 2025309 PMAQI
24th Jul 20253010 PMAQI
24th Jul 20252711 PMAQI
25th Jul 20252912 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025372 AMAQI
25th Jul 2025373 AMAQI

29°C25/34°C

25th Jul 2025384 AMAQI
25th Jul 2025425 AMAQI
25th Jul 2025426 AMAQI
25th Jul 2025417 AMAQI
25th Jul 2025418 AMAQI
25th Jul 2025309 AMAQI
25th Jul 20253610 AMAQI
25th Jul 20254811 AMAQI
25th Jul 20255212 PMAQI
25th Jul 2025531 PMAQI
25th Jul 2025472 PMAQI
25th Jul 2025343 PMAQI
25th Jul 2025244 PMAQI
25th Jul 2025215 PMAQI
25th Jul 2025236 PMAQI
25th Jul 2025217 PMAQI
25th Jul 2025218 PMAQI
25th Jul 2025269 PMAQI
25th Jul 20252710 PMAQI
25th Jul 20252711 PMAQI
26th Jul 20252812 AMAQI
26th Jul 2025371 AMAQI
26th Jul 2025372 AMAQI
26th Jul 2025383 AMAQI

29°C26/33°C

26th Jul 2025384 AMAQI
26th Jul 2025405 AMAQI
26th Jul 2025406 AMAQI
26th Jul 2025407 AMAQI
26th Jul 2025398 AMAQI
26th Jul 2025259 AMAQI
26th Jul 20252910 AMAQI
26th Jul 20253711 AMAQI
26th Jul 20254112 PMAQI
26th Jul 2025411 PMAQI
26th Jul 2025422 PMAQI
26th Jul 2025363 PMAQI
26th Jul 2025284 PMAQI
26th Jul 2025225 PMAQI
26th Jul 2025186 PMAQI
26th Jul 2025187 PMAQI
26th Jul 2025248 PMAQI
26th Jul 2025319 PMAQI
26th Jul 20253010 PMAQI
26th Jul 20253011 PMAQI
27th Jul 20253012 AMAQI
27th Jul 2025371 AMAQI
27th Jul 2025382 AMAQI
27th Jul 2025373 AMAQI

29°C26/33°C

27th Jul 2025374 AMAQI
27th Jul 2025375 AMAQI
27th Jul 2025366 AMAQI
27th Jul 2025377 AMAQI
27th Jul 2025378 AMAQI
27th Jul 2025299 AMAQI
27th Jul 20251810 AMAQI
27th Jul 20252911 AMAQI
27th Jul 20253012 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025312 PMAQI
27th Jul 2025333 PMAQI
27th Jul 2025284 PMAQI
27th Jul 2025275 PMAQI
27th Jul 2025216 PMAQI
27th Jul 2025247 PMAQI
27th Jul 2025228 PMAQI
27th Jul 2025269 PMAQI
27th Jul 20252510 PMAQI
27th Jul 20252711 PMAQI
28th Jul 20252612 AMAQI
28th Jul 2025321 AMAQI
28th Jul 2025372 AMAQI
28th Jul 2025373 AMAQI

29°C26/33°C

28th Jul 2025364 AMAQI
28th Jul 2025345 AMAQI
28th Jul 2025366 AMAQI
28th Jul 2025357 AMAQI
28th Jul 2025348 AMAQI
28th Jul 2025269 AMAQI
28th Jul 20252410 AMAQI
28th Jul 20253611 AMAQI
28th Jul 20255012 PMAQI
28th Jul 2025561 PMAQI
28th Jul 2025532 PMAQI
28th Jul 2025483 PMAQI
28th Jul 2025524 PMAQI
28th Jul 2025465 PMAQI
28th Jul 2025386 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025359 PMAQI
28th Jul 20252910 PMAQI
28th Jul 20252911 PMAQI
29th Jul 20252812 AMAQI
29th Jul 2025341 AMAQI
29th Jul 2025342 AMAQI
29th Jul 2025343 AMAQI

29°C26/34°C

29th Jul 2025364 AMAQI
29th Jul 2025385 AMAQI
29th Jul 2025376 AMAQI
29th Jul 2025377 AMAQI
29th Jul 2025368 AMAQI
29th Jul 2025239 AMAQI
29th Jul 20252210 AMAQI
29th Jul 20253411 AMAQI
29th Jul 20254112 PMAQI
29th Jul 2025521 PMAQI
29th Jul 2025482 PMAQI
29th Jul 2025343 PMAQI
29th Jul 2025264 PMAQI
29th Jul 2025205 PMAQI
29th Jul 2025186 PMAQI
29th Jul 2025187 PMAQI
29th Jul 2025228 PMAQI
29th Jul 2025259 PMAQI
29th Jul 20252610 PMAQI
29th Jul 20252611 PMAQI
30th Jul 20252812 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025353 AMAQI

29°C25/35°C

30th Jul 2025354 AMAQI
30th Jul 2025365 AMAQI
30th Jul 2025366 AMAQI
30th Jul 2025367 AMAQI
30th Jul 2025358 AMAQI
30th Jul 2025249 AMAQI
30th Jul 20252110 AMAQI
30th Jul 20252111 AMAQI
30th Jul 20252112 PMAQI
30th Jul 2025261 PMAQI
30th Jul 2025242 PMAQI
30th Jul 2025243 PMAQI
30th Jul 2025294 PMAQI
30th Jul 2025325 PMAQI
30th Jul 2025366 PMAQI
30th Jul 2025397 PMAQI
30th Jul 2025418 PMAQI
30th Jul 2025389 PMAQI
30th Jul 20253210 PMAQI
30th Jul 20253311 PMAQI
31st Jul 20253312 AMAQI
31st Jul 2025341 AMAQI
31st Jul 2025342 AMAQI
31st Jul 2025333 AMAQI

29°C25/33°C

31st Jul 2025334 AMAQI
31st Jul 2025335 AMAQI
31st Jul 2025336 AMAQI
31st Jul 2025337 AMAQI
31st Jul 2025338 AMAQI
31st Jul 2025339 AMAQI
31st Jul 20253310 AMAQI
31st Jul 20252811 AMAQI
31st Jul 20253112 PMAQI
31st Jul 2025281 PMAQI
31st Jul 2025262 PMAQI
31st Jul 2025243 PMAQI
31st Jul 2025244 PMAQI
31st Jul 2025245 PMAQI
31st Jul 2025266 PMAQI
31st Jul 2025247 PMAQI
31st Jul 2025298 PMAQI
31st Jul 2025289 PMAQI
31st Jul 20252910 PMAQI
31st Jul 20252711 PMAQI
1st Aug 20252812 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025343 AMAQI

27°C24/32°C

1st Aug 2025344 AMAQI
1st Aug 2025345 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025357 AMAQI
1st Aug 2025368 AMAQI
1st Aug 2025409 AMAQI
1st Aug 20252610 AMAQI
1st Aug 20254711 AMAQI
1st Aug 20254712 PMAQI
1st Aug 2025421 PMAQI
1st Aug 2025342 PMAQI
1st Aug 2025253 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025305 PMAQI
1st Aug 2025386 PMAQI
1st Aug 2025257 PMAQI
1st Aug 2025298 PMAQI
1st Aug 2025289 PMAQI
1st Aug 20253010 PMAQI
1st Aug 20252811 PMAQI
2nd Aug 20252812 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025363 AMAQI

27°C25/30°C

2nd Aug 2025374 AMAQI
2nd Aug 2025375 AMAQI
2nd Aug 2025386 AMAQI
2nd Aug 2025377 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025339 AMAQI
2nd Aug 20253310 AMAQI
2nd Aug 20254211 AMAQI
2nd Aug 20253012 PMAQI
2nd Aug 2025441 PMAQI
2nd Aug 2025582 PMAQI
2nd Aug 2025563 PMAQI
2nd Aug 2025544 PMAQI
2nd Aug 2025525 PMAQI
2nd Aug 2025536 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025418 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20253911 PMAQI
3rd Aug 20253312 AMAQI
3rd Aug 2025341 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025363 AMAQI

29°C25/34°C

3rd Aug 2025404 AMAQI
3rd Aug 2025395 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025499 AMAQI
3rd Aug 20255310 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025501 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025484 PMAQI
3rd Aug 2025495 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025437 PMAQI
3rd Aug 2025468 PMAQI
3rd Aug 2025399 PMAQI
3rd Aug 20254510 PMAQI
3rd Aug 20253911 PMAQI
4th Aug 20253712 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI

30°C26/34°C

4th Aug 2025424 AMAQI
4th Aug 2025425 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025427 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025629 AMAQI
4th Aug 20257210 AMAQI
4th Aug 20258211 AMAQI
4th Aug 20258312 PMAQI
4th Aug 2025901 PMAQI
4th Aug 2025992 PMAQI
4th Aug 2025873 PMAQI
4th Aug 2025934 PMAQI
4th Aug 2025955 PMAQI
4th Aug 2025846 PMAQI
4th Aug 2025727 PMAQI
4th Aug 2025668 PMAQI
4th Aug 2025579 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20254611 PMAQI
5th Aug 20254712 AMAQI
5th Aug 2025441 AMAQI
5th Aug 2025422 AMAQI
5th Aug 2025403 AMAQI

30°C27/33°C

5th Aug 2025504 AMAQI
5th Aug 2025545 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025517 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025589 AMAQI
5th Aug 20256610 AMAQI
5th Aug 20256011 AMAQI
5th Aug 20256012 PMAQI
5th Aug 2025551 PMAQI
5th Aug 2025542 PMAQI
5th Aug 2025563 PMAQI
5th Aug 2025604 PMAQI
5th Aug 2025505 PMAQI
5th Aug 2025496 PMAQI
5th Aug 2025447 PMAQI
5th Aug 2025478 PMAQI
5th Aug 2025469 PMAQI
5th Aug 20254610 PMAQI
5th Aug 20254111 PMAQI
6th Aug 20254312 AMAQI
6th Aug 2025481 AMAQI
6th Aug 2025502 AMAQI
6th Aug 2025493 AMAQI

--°C/°C

6th Aug 2025524 AMAQI
4 AM
6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025538 AMAQI
11 AM
6 PM
11 PM
3 AM

--°C/°C

Day time
Avg. Highest Time
1 PM - 4 PM

46AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM - 10 AM

38AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 4 PM (Avg. 46), while the lowest AQI was between 9 AM to 10 AM (Avg. 38).
Night time
Avg. Highest Time
1 AM - 3 AM

46AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
7 PM - 8 PM

39AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 3 AM (Avg. 46), while the lowest AQI was between 7 PM to 8 PM (Avg. 39).

2025 Days Vs Air Quality

Shikawatashi, Yotsukaido, Chiba, Japan

2025

89%

193

11%

24

Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)

Good
193 Days
Moderate
24 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 89%

Health Risk Level:

Low

In 2025, 89% of 217 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

Shikawatashi, Yotsukaido, Chiba, 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
34AQI
2nd January 2025
32AQI
3rd January 2025
25AQI
4th January 2025
31AQI
5th January 2025
36AQI
6th January 2025
55AQI
7th January 2025
32AQI
8th January 2025
37AQI
9th January 2025
29AQI
10th January 2025
30AQI
11th January 2025
31AQI
12th January 2025
35AQI
13th January 2025
29AQI
14th January 2025
39AQI
15th January 2025
37AQI
16th January 2025
37AQI
17th January 2025
31AQI
18th January 2025
37AQI
19th January 2025
58AQI
20th January 2025
41AQI
21st January 2025
44AQI
22nd January 2025
42AQI
23rd January 2025
52AQI
24th January 2025
44AQI
25th January 2025
41AQI
26th January 2025
37AQI
27th January 2025
38AQI
28th January 2025
39AQI
29th January 2025
31AQI
30th January 2025
34AQI
31st January 2025
31AQI
1st February 2025
42AQI
2nd February 2025
33AQI
3rd February 2025
42AQI
4th February 2025
30AQI
5th February 2025
34AQI
6th February 2025
30AQI
7th February 2025
31AQI
8th February 2025
37AQI
9th February 2025
30AQI
10th February 2025
33AQI
11th February 2025
38AQI
12th February 2025
33AQI
13th February 2025
57AQI
14th February 2025
31AQI
15th February 2025
57AQI
16th February 2025
38AQI
17th February 2025
45AQI
18th February 2025
33AQI
19th February 2025
34AQI
20th February 2025
30AQI
21st February 2025
31AQI
22nd February 2025
32AQI
23rd February 2025
33AQI
24th February 2025
33AQI
25th February 2025
34AQI
26th February 2025
35AQI
27th February 2025
40AQI
28th February 2025
54AQI
1st March 2025
46AQI
2nd March 2025
63AQI
3rd March 2025
40AQI
4th March 2025
41AQI
5th March 2025
27AQI
6th March 2025
32AQI
7th March 2025
31AQI
8th March 2025
32AQI
9th March 2025
32AQI
10th March 2025
35AQI
11th March 2025
37AQI
12th March 2025
43AQI
13th March 2025
38AQI
14th March 2025
39AQI
15th March 2025
32AQI
16th March 2025
25AQI
17th March 2025
19AQI
18th March 2025
23AQI
19th March 2025
18AQI
20th March 2025
23AQI
21st March 2025
43AQI
22nd March 2025
49AQI
23rd March 2025
56AQI
24th March 2025
50AQI
25th March 2025
67AQI
26th March 2025
80AQI
27th March 2025
69AQI
28th March 2025
47AQI
29th March 2025
38AQI
30th March 2025
42AQI
31st March 2025
34AQI
1st April 2025
28AQI
2nd April 2025
23AQI
3rd April 2025
20AQI
4th April 2025
22AQI
5th April 2025
23AQI
6th April 2025
24AQI
7th April 2025
31AQI
8th April 2025
36AQI
9th April 2025
28AQI
10th April 2025
45AQI
11th April 2025
42AQI
12th April 2025
37AQI
13th April 2025
28AQI
14th April 2025
40AQI
15th April 2025
30AQI
16th April 2025
35AQI
17th April 2025
45AQI
18th April 2025
51AQI
19th April 2025
61AQI
20th April 2025
51AQI
21st April 2025
46AQI
22nd April 2025
45AQI
23rd April 2025
29AQI
24th April 2025
38AQI
25th April 2025
37AQI
26th April 2025
44AQI
27th April 2025
47AQI
28th April 2025
42AQI
29th April 2025
35AQI
30th April 2025
43AQI
1st May 2025
39AQI
2nd May 2025
27AQI
3rd May 2025
32AQI
4th May 2025
37AQI
5th May 2025
32AQI
6th May 2025
26AQI
7th May 2025
23AQI
8th May 2025
26AQI
9th May 2025
27AQI
10th May 2025
22AQI
11th May 2025
29AQI
12th May 2025
27AQI
13th May 2025
35AQI
14th May 2025
28AQI
15th May 2025
35AQI
16th May 2025
41AQI
17th May 2025
27AQI
18th May 2025
43AQI
19th May 2025
41AQI
20th May 2025
61AQI
21st May 2025
41AQI
22nd May 2025
43AQI
23rd May 2025
38AQI
24th May 2025
37AQI
25th May 2025
30AQI
26th May 2025
26AQI
27th May 2025
24AQI
28th May 2025
23AQI
29th May 2025
25AQI
30th May 2025
22AQI
31st May 2025
15AQI
1st June 2025
20AQI
2nd June 2025
24AQI
3rd June 2025
27AQI
4th June 2025
33AQI
5th June 2025
36AQI
6th June 2025
44AQI
7th June 2025
46AQI
8th June 2025
52AQI
9th June 2025
39AQI
10th June 2025
29AQI
11th June 2025
23AQI
12th June 2025
31AQI
13th June 2025
31AQI
14th June 2025
31AQI
15th June 2025
35AQI
16th June 2025
38AQI
17th June 2025
50AQI
18th June 2025
44AQI
19th June 2025
40AQI
20th June 2025
34AQI
21st June 2025
31AQI
22nd June 2025
24AQI
23rd June 2025
25AQI
24th June 2025
22AQI
25th June 2025
21AQI
26th June 2025
21AQI
27th June 2025
28AQI
28th June 2025
28AQI
29th June 2025
32AQI
30th June 2025
36AQI
1st July 2025
36AQI
2nd July 2025
42AQI
3rd July 2025
45AQI
4th July 2025
43AQI
5th July 2025
48AQI
6th July 2025
65AQI
7th July 2025
73AQI
8th July 2025
75AQI
9th July 2025
77AQI
10th July 2025
59AQI
11th July 2025
52AQI
12th July 2025
54AQI
13th July 2025
50AQI
14th July 2025
44AQI
15th July 2025
42AQI
16th July 2025
40AQI
17th July 2025
41AQI
18th July 2025
39AQI
19th July 2025
34AQI
20th July 2025
33AQI
21st July 2025
35AQI
22nd July 2025
35AQI
23rd July 2025
36AQI
24th July 2025
37AQI
25th July 2025
34AQI
26th July 2025
32AQI
27th July 2025
30AQI
28th July 2025
36AQI
29th July 2025
31AQI
30th July 2025
32AQI
31st July 2025
30AQI
1st August 2025
33AQI
2nd August 2025
41AQI
3rd August 2025
44AQI
4th August 2025
60AQI
5th August 2025
48AQI

37AQI

37AQI

40AQI

37AQI

32AQI

33AQI

44AQI

45AQI


No. of days

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

202537AQI

28
3
25
3
26
5
27
3
30
1
29
1
24
7
4
1
193
24

Highest AQI recorded in

August

45AQI


Lowest AQI recorded in

May

32AQI


202437AQI

24
7
25
4
22
9
25
5
28
3
29
1
19
12
29
2
29
1
31
26
4
31
318
48

Highest AQI recorded in

July

47AQI


Lowest AQI recorded in

September

29AQI


202339AQI

23
8
22
6
28
3
24
6
28
3
22
8
28
3
31
29
1
30
1
20
9
20
11
305
59

Highest AQI recorded in

December

48AQI


Lowest AQI recorded in

August

25AQI


202239AQI

25
5
16
5
21
10
13
4
26
5
23
7
19
2
1
28
28
3
20
10
24
7
244
58

Highest AQI recorded in

March

47AQI


Lowest AQI recorded in

August

26AQI


202139AQI

18
12
1
21
7
25
5
1
26
4
25
6
27
3
27
4
26
5
29
1
30
1
19
11
18
13
291
72
2

Highest AQI recorded in

January

48AQI


Lowest AQI recorded in

August

32AQI


202038AQI

11
2
18
3
18
23
7
29
2
19
12
19
27
4
16
14
19
12
199
56

Highest AQI recorded in

November

46AQI


Lowest AQI recorded in

September

27AQI


Most & Least Polluted Years Over the Last 6 Years

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


Shikawatashi's annual 2025 AQI (37) shows an average percentage change of -3.2% (improved AQI) compared to previous years: 2020 (38), 2021 (39), 2022 (39), 2023 (39), 2024 (37).