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
Yotsukaido, Chiba, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Aug 2021
69AQILowest AQI recorded on
7th Aug 2021
16AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 54 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Yotsukaido, Chiba, Japan
AQI
Day
Night
.
4 AM4th Aug 2025
6 PM
3 AM5th Aug 2025
Day time
Avg. Highest Time
2PM4th Aug
100AQI
Avg. Lowest Time
7AM4th Aug
42AQI
Night time
Avg. Highest Time
7PM4th Aug
72AQI
Avg. Lowest Time
3AM5th Aug
40AQI
In the last 24 hours,
Yotsukaido's AQI reached its highest point of 100 at 2 PM during the Day, while the lowest point, 40, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Yotsukaido, Chiba, Japan
JulAug
06th - 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 - 04th04th - 05th05th
Day
Night
6th Jul 2025404 AMAQI
6th Jul 2025435 AMAQI
6th Jul 2025436 AMAQI
6th Jul 2025437 AMAQI
6th Jul 2025438 AMAQI
6th Jul 2025659 AMAQI
6th Jul 20259010 AMAQI
6th Jul 20259411 AMAQI
6th Jul 20258912 PMAQI
6th Jul 2025821 PMAQI
6th Jul 2025822 PMAQI
6th Jul 2025803 PMAQI
6th Jul 2025864 PMAQI
6th Jul 2025925 PMAQI
6th Jul 2025946 PMAQI
6th Jul 20251027 PMAQI
6th Jul 2025998 PMAQI
6th Jul 2025699 PMAQI
6th Jul 20256710 PMAQI
6th Jul 20256711 PMAQI
7th Jul 20256612 AMAQI
7th Jul 2025571 AMAQI
7th Jul 2025482 AMAQI
7th Jul 2025463 AMAQI
29°C26/33°C
7th Jul 2025504 AMAQI
7th Jul 2025555 AMAQI
7th Jul 2025556 AMAQI
7th Jul 2025557 AMAQI
7th Jul 2025558 AMAQI
7th Jul 2025899 AMAQI
7th Jul 202511010 AMAQI
7th Jul 202511311 AMAQI
7th Jul 202510012 PMAQI
7th Jul 2025861 PMAQI
7th Jul 2025862 PMAQI
7th Jul 2025863 PMAQI
7th Jul 2025844 PMAQI
7th Jul 2025845 PMAQI
7th Jul 2025866 PMAQI
7th Jul 2025947 PMAQI
7th Jul 2025928 PMAQI
7th Jul 2025739 PMAQI
7th Jul 20257210 PMAQI
7th Jul 20257211 PMAQI
8th Jul 20256912 AMAQI
8th Jul 2025611 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025563 AMAQI
29°C26/33°C
8th Jul 2025584 AMAQI
8th Jul 2025635 AMAQI
8th Jul 2025626 AMAQI
8th Jul 2025627 AMAQI
8th Jul 2025628 AMAQI
8th Jul 2025889 AMAQI
8th Jul 20259610 AMAQI
8th Jul 20259611 AMAQI
8th Jul 20259312 PMAQI
8th Jul 2025901 PMAQI
8th Jul 2025862 PMAQI
8th Jul 2025843 PMAQI
8th Jul 2025884 PMAQI
8th Jul 2025905 PMAQI
8th Jul 2025936 PMAQI
8th Jul 2025907 PMAQI
8th Jul 2025878 PMAQI
8th Jul 2025759 PMAQI
8th Jul 20257910 PMAQI
8th Jul 20258011 PMAQI
9th Jul 20257712 AMAQI
9th Jul 2025661 AMAQI
9th Jul 2025642 AMAQI
9th Jul 2025643 AMAQI
29°C26/33°C
9th Jul 2025664 AMAQI
9th Jul 2025715 AMAQI
9th Jul 2025716 AMAQI
9th Jul 2025717 AMAQI
9th Jul 2025718 AMAQI
9th Jul 2025809 AMAQI
9th Jul 20259010 AMAQI
9th Jul 20259411 AMAQI
9th Jul 202510012 PMAQI
9th Jul 2025981 PMAQI
9th Jul 20251002 PMAQI
9th Jul 20251103 PMAQI
9th Jul 20251084 PMAQI
9th Jul 2025895 PMAQI
9th Jul 2025646 PMAQI
9th Jul 2025587 PMAQI
9th Jul 2025578 PMAQI
9th Jul 2025629 PMAQI
9th Jul 20256210 PMAQI
9th Jul 20256111 PMAQI
10th Jul 20256112 AMAQI
10th Jul 2025671 AMAQI
10th Jul 2025702 AMAQI
10th Jul 2025703 AMAQI
29°C26/32°C
10th Jul 2025714 AMAQI
10th Jul 2025765 AMAQI
10th Jul 2025766 AMAQI
10th Jul 2025767 AMAQI
10th Jul 2025768 AMAQI
10th Jul 2025389 AMAQI
10th Jul 20252710 AMAQI
10th Jul 20254311 AMAQI
10th Jul 20254512 PMAQI
10th Jul 2025461 PMAQI
10th Jul 2025412 PMAQI
10th Jul 2025443 PMAQI
10th Jul 2025464 PMAQI
10th Jul 2025465 PMAQI
10th Jul 2025506 PMAQI
10th Jul 2025507 PMAQI
10th Jul 2025548 PMAQI
10th Jul 2025619 PMAQI
10th Jul 20256010 PMAQI
10th Jul 20255911 PMAQI
11th Jul 20256012 AMAQI
11th Jul 2025651 AMAQI
11th Jul 2025692 AMAQI
11th Jul 2025693 AMAQI
27°C22/32°C
11th Jul 2025684 AMAQI
11th Jul 2025645 AMAQI
11th Jul 2025646 AMAQI
11th Jul 2025647 AMAQI
11th Jul 2025638 AMAQI
11th Jul 2025299 AMAQI
11th Jul 20251710 AMAQI
11th Jul 20251711 AMAQI
11th Jul 20252212 PMAQI
11th Jul 2025381 PMAQI
11th Jul 2025392 PMAQI
11th Jul 2025393 PMAQI
11th Jul 2025394 PMAQI
11th Jul 2025405 PMAQI
11th Jul 2025396 PMAQI
11th Jul 2025407 PMAQI
11th Jul 2025468 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20255810 PMAQI
11th Jul 20255811 PMAQI
12th Jul 20255812 AMAQI
12th Jul 2025621 AMAQI
12th Jul 2025642 AMAQI
12th Jul 2025643 AMAQI
23°C22/26°C
12th Jul 2025634 AMAQI
12th Jul 2025605 AMAQI
12th Jul 2025606 AMAQI
12th Jul 2025607 AMAQI
12th Jul 2025608 AMAQI
12th Jul 2025419 AMAQI
12th Jul 20253410 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20254012 PMAQI
12th Jul 2025471 PMAQI
12th Jul 2025472 PMAQI
12th Jul 2025453 PMAQI
12th Jul 2025414 PMAQI
12th Jul 2025455 PMAQI
12th Jul 2025476 PMAQI
12th Jul 2025467 PMAQI
12th Jul 2025488 PMAQI
12th Jul 2025569 PMAQI
12th Jul 20255510 PMAQI
12th Jul 20255611 PMAQI
13th Jul 20255612 AMAQI
13th Jul 2025591 AMAQI
13th Jul 2025612 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 2025459 AMAQI
13th Jul 20253410 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20253912 PMAQI
13th Jul 2025431 PMAQI
13th Jul 2025412 PMAQI
13th Jul 2025373 PMAQI
13th Jul 2025384 PMAQI
13th Jul 2025375 PMAQI
13th Jul 2025376 PMAQI
13th Jul 2025347 PMAQI
13th Jul 2025388 PMAQI
13th Jul 2025539 PMAQI
13th Jul 20255310 PMAQI
13th Jul 20255311 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI
26°C23/29°C
14th Jul 2025574 AMAQI
14th Jul 2025565 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025568 AMAQI
14th Jul 2025289 AMAQI
14th Jul 20251710 AMAQI
14th Jul 20251711 AMAQI
14th Jul 20251712 PMAQI
14th Jul 2025241 PMAQI
14th Jul 2025282 PMAQI
14th Jul 2025283 PMAQI
14th Jul 2025314 PMAQI
14th Jul 2025295 PMAQI
14th Jul 2025306 PMAQI
14th Jul 2025327 PMAQI
14th Jul 2025358 PMAQI
14th Jul 2025509 PMAQI
14th Jul 20254910 PMAQI
14th Jul 20255011 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025552 AMAQI
15th Jul 2025553 AMAQI
25°C24/28°C
15th Jul 2025554 AMAQI
15th Jul 2025535 AMAQI
15th Jul 2025536 AMAQI
15th Jul 2025537 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025279 AMAQI
15th Jul 20252010 AMAQI
15th Jul 20251811 AMAQI
15th Jul 20251912 PMAQI
15th Jul 2025251 PMAQI
15th Jul 2025262 PMAQI
15th Jul 2025303 PMAQI
15th Jul 2025324 PMAQI
15th Jul 2025305 PMAQI
15th Jul 2025326 PMAQI
15th Jul 2025317 PMAQI
15th Jul 2025338 PMAQI
15th Jul 2025459 PMAQI
15th Jul 20254410 PMAQI
15th Jul 20254411 PMAQI
16th Jul 20254712 AMAQI
16th Jul 2025511 AMAQI
16th Jul 2025532 AMAQI
16th Jul 2025533 AMAQI
26°C25/28°C
16th Jul 2025524 AMAQI
16th Jul 2025505 AMAQI
16th Jul 2025516 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025349 AMAQI
16th Jul 20252810 AMAQI
16th Jul 20252611 AMAQI
16th Jul 20252312 PMAQI
16th Jul 2025261 PMAQI
16th Jul 2025262 PMAQI
16th Jul 2025253 PMAQI
16th Jul 2025254 PMAQI
16th Jul 2025255 PMAQI
16th Jul 2025286 PMAQI
16th Jul 2025287 PMAQI
16th Jul 2025298 PMAQI
16th Jul 2025399 PMAQI
16th Jul 20253810 PMAQI
16th Jul 20254111 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025481 AMAQI
17th Jul 2025492 AMAQI
17th Jul 2025503 AMAQI
26°C25/27°C
17th Jul 2025504 AMAQI
17th Jul 2025475 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025477 AMAQI
17th Jul 2025468 AMAQI
17th Jul 2025329 AMAQI
17th Jul 20252810 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20253212 PMAQI
17th Jul 2025381 PMAQI
17th Jul 2025392 PMAQI
17th Jul 2025403 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025327 PMAQI
17th Jul 2025388 PMAQI
17th Jul 2025459 PMAQI
17th Jul 20254710 PMAQI
17th Jul 20254511 PMAQI
18th Jul 20254312 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025472 AMAQI
18th Jul 2025483 AMAQI
27°C25/30°C
18th Jul 2025474 AMAQI
18th Jul 2025455 AMAQI
18th Jul 2025456 AMAQI
18th Jul 2025457 AMAQI
18th Jul 2025458 AMAQI
18th Jul 2025349 AMAQI
18th Jul 20252910 AMAQI
18th Jul 20252911 AMAQI
18th Jul 20252812 PMAQI
18th Jul 2025321 PMAQI
18th Jul 2025322 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025314 PMAQI
18th Jul 2025325 PMAQI
18th Jul 2025286 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025409 PMAQI
18th Jul 20254010 PMAQI
18th Jul 20254211 PMAQI
19th Jul 20254312 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025462 AMAQI
19th Jul 2025463 AMAQI
27°C25/31°C
19th Jul 2025454 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025436 AMAQI
19th Jul 2025447 AMAQI
19th Jul 2025438 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20253211 AMAQI
19th Jul 20252912 PMAQI
19th Jul 2025261 PMAQI
19th Jul 2025222 PMAQI
19th Jul 2025243 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025295 PMAQI
19th Jul 2025266 PMAQI
19th Jul 2025277 PMAQI
19th Jul 2025298 PMAQI
19th Jul 2025359 PMAQI
19th Jul 20253510 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025411 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 2025329 AMAQI
20th Jul 20252310 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025271 PMAQI
20th Jul 2025222 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025306 PMAQI
20th Jul 2025397 PMAQI
20th Jul 2025338 PMAQI
20th Jul 2025349 PMAQI
20th Jul 20253310 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253512 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 2025387 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025289 AMAQI
21st Jul 20252910 AMAQI
21st Jul 20253411 AMAQI
21st Jul 20253512 PMAQI
21st Jul 2025371 PMAQI
21st Jul 2025372 PMAQI
21st Jul 2025393 PMAQI
21st Jul 2025374 PMAQI
21st Jul 2025355 PMAQI
21st Jul 2025306 PMAQI
21st Jul 2025307 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025349 PMAQI
21st Jul 20253210 PMAQI
21st Jul 20253011 PMAQI
22nd Jul 20252912 AMAQI
22nd Jul 2025381 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025393 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 2025279 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20253511 AMAQI
22nd Jul 20253712 PMAQI
22nd Jul 2025451 PMAQI
22nd Jul 2025482 PMAQI
22nd Jul 2025463 PMAQI
22nd Jul 2025414 PMAQI
22nd Jul 2025355 PMAQI
22nd Jul 2025286 PMAQI
22nd Jul 2025267 PMAQI
22nd Jul 2025248 PMAQI
22nd Jul 2025289 PMAQI
22nd Jul 20253010 PMAQI
22nd Jul 20253011 PMAQI
23rd Jul 20253012 AMAQI
23rd Jul 2025331 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 20253110 AMAQI
23rd Jul 20253911 AMAQI
23rd Jul 20255012 PMAQI
23rd Jul 2025541 PMAQI
23rd Jul 2025532 PMAQI
23rd Jul 2025463 PMAQI
23rd Jul 2025434 PMAQI
23rd Jul 2025405 PMAQI
23rd Jul 2025386 PMAQI
23rd Jul 2025307 PMAQI
23rd Jul 2025268 PMAQI
23rd Jul 2025309 PMAQI
23rd Jul 20252910 PMAQI
23rd Jul 20252711 PMAQI
24th Jul 20253312 AMAQI
24th Jul 2025371 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 2025319 AMAQI
24th Jul 20253310 AMAQI
24th Jul 20253911 AMAQI
24th Jul 20255212 PMAQI
24th Jul 2025591 PMAQI
24th Jul 2025622 PMAQI
24th Jul 2025603 PMAQI
24th Jul 2025484 PMAQI
24th Jul 2025385 PMAQI
24th Jul 2025326 PMAQI
24th Jul 2025267 PMAQI
24th Jul 2025268 PMAQI
24th Jul 2025299 PMAQI
24th Jul 20253010 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20253112 AMAQI
25th Jul 2025351 AMAQI
25th Jul 2025372 AMAQI
25th Jul 2025383 AMAQI
29°C25/34°C
25th Jul 2025384 AMAQI
25th Jul 2025415 AMAQI
25th Jul 2025416 AMAQI
25th Jul 2025417 AMAQI
25th Jul 2025418 AMAQI
25th Jul 2025309 AMAQI
25th Jul 20253410 AMAQI
25th Jul 20254711 AMAQI
25th Jul 20254812 PMAQI
25th Jul 2025491 PMAQI
25th Jul 2025432 PMAQI
25th Jul 2025323 PMAQI
25th Jul 2025274 PMAQI
25th Jul 2025235 PMAQI
25th Jul 2025226 PMAQI
25th Jul 2025207 PMAQI
25th Jul 2025218 PMAQI
25th Jul 2025269 PMAQI
25th Jul 20252910 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253112 AMAQI
26th Jul 2025351 AMAQI
26th Jul 2025362 AMAQI
26th Jul 2025383 AMAQI
29°C26/33°C
26th Jul 2025384 AMAQI
26th Jul 2025395 AMAQI
26th Jul 2025396 AMAQI
26th Jul 2025397 AMAQI
26th Jul 2025388 AMAQI
26th Jul 2025279 AMAQI
26th Jul 20253010 AMAQI
26th Jul 20253811 AMAQI
26th Jul 20254112 PMAQI
26th Jul 2025401 PMAQI
26th Jul 2025392 PMAQI
26th Jul 2025343 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025265 PMAQI
26th Jul 2025216 PMAQI
26th Jul 2025187 PMAQI
26th Jul 2025238 PMAQI
26th Jul 2025309 PMAQI
26th Jul 20253110 PMAQI
26th Jul 20253211 PMAQI
27th Jul 20253112 AMAQI
27th Jul 2025341 AMAQI
27th Jul 2025372 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 20252210 AMAQI
27th Jul 20253111 AMAQI
27th Jul 20253212 PMAQI
27th Jul 2025301 PMAQI
27th Jul 2025332 PMAQI
27th Jul 2025323 PMAQI
27th Jul 2025274 PMAQI
27th Jul 2025275 PMAQI
27th Jul 2025236 PMAQI
27th Jul 2025237 PMAQI
27th Jul 2025228 PMAQI
27th Jul 2025269 PMAQI
27th Jul 20252710 PMAQI
27th Jul 20252911 PMAQI
28th Jul 20252812 AMAQI
28th Jul 2025321 AMAQI
28th Jul 2025362 AMAQI
28th Jul 2025363 AMAQI
29°C26/33°C
28th Jul 2025364 AMAQI
28th Jul 2025345 AMAQI
28th Jul 2025356 AMAQI
28th Jul 2025357 AMAQI
28th Jul 2025348 AMAQI
28th Jul 2025289 AMAQI
28th Jul 20252610 AMAQI
28th Jul 20253611 AMAQI
28th Jul 20255012 PMAQI
28th Jul 2025561 PMAQI
28th Jul 2025552 PMAQI
28th Jul 2025533 PMAQI
28th Jul 2025544 PMAQI
28th Jul 2025475 PMAQI
28th Jul 2025386 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025339 PMAQI
28th Jul 20252810 PMAQI
28th Jul 20252911 PMAQI
29th Jul 20253012 AMAQI
29th Jul 2025321 AMAQI
29th Jul 2025332 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 2025289 AMAQI
29th Jul 20252810 AMAQI
29th Jul 20253511 AMAQI
29th Jul 20253812 PMAQI
29th Jul 2025451 PMAQI
29th Jul 2025442 PMAQI
29th Jul 2025343 PMAQI
29th Jul 2025284 PMAQI
29th Jul 2025205 PMAQI
29th Jul 2025186 PMAQI
29th Jul 2025187 PMAQI
29th Jul 2025228 PMAQI
29th Jul 2025279 PMAQI
29th Jul 20252810 PMAQI
29th Jul 20252711 PMAQI
30th Jul 20252712 AMAQI
30th Jul 2025321 AMAQI
30th Jul 2025332 AMAQI
30th Jul 2025343 AMAQI
29°C25/35°C
30th Jul 2025354 AMAQI
30th Jul 2025355 AMAQI
30th Jul 2025356 AMAQI
30th Jul 2025367 AMAQI
30th Jul 2025358 AMAQI
30th Jul 2025249 AMAQI
30th Jul 20252210 AMAQI
30th Jul 20252311 AMAQI
30th Jul 20252312 PMAQI
30th Jul 2025251 PMAQI
30th Jul 2025242 PMAQI
30th Jul 2025243 PMAQI
30th Jul 2025274 PMAQI
30th Jul 2025295 PMAQI
30th Jul 2025326 PMAQI
30th Jul 2025377 PMAQI
30th Jul 2025388 PMAQI
30th Jul 2025379 PMAQI
30th Jul 20253610 PMAQI
30th Jul 20253511 PMAQI
31st Jul 20253412 AMAQI
31st Jul 2025351 AMAQI
31st Jul 2025332 AMAQI
31st Jul 2025333 AMAQI
29°C25/33°C
31st Jul 2025324 AMAQI
31st Jul 2025325 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025327 AMAQI
31st Jul 2025328 AMAQI
31st Jul 2025329 AMAQI
31st Jul 20253210 AMAQI
31st Jul 20253011 AMAQI
31st Jul 20253212 PMAQI
31st Jul 2025311 PMAQI
31st Jul 2025272 PMAQI
31st Jul 2025243 PMAQI
31st Jul 2025244 PMAQI
31st Jul 2025245 PMAQI
31st Jul 2025256 PMAQI
31st Jul 2025267 PMAQI
31st Jul 2025308 PMAQI
31st Jul 2025289 PMAQI
31st Jul 20252910 PMAQI
31st Jul 20252711 PMAQI
1st Aug 20252812 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025332 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 2025399 AMAQI
1st Aug 20252610 AMAQI
1st Aug 20254311 AMAQI
1st Aug 20254312 PMAQI
1st Aug 2025411 PMAQI
1st Aug 2025342 PMAQI
1st Aug 2025253 PMAQI
1st Aug 2025434 PMAQI
1st Aug 2025315 PMAQI
1st Aug 2025386 PMAQI
1st Aug 2025247 PMAQI
1st Aug 2025298 PMAQI
1st Aug 2025289 PMAQI
1st Aug 20253010 PMAQI
1st Aug 20252811 PMAQI
2nd Aug 20252812 AMAQI
2nd Aug 2025291 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 2025329 AMAQI
2nd Aug 20253310 AMAQI
2nd Aug 20254111 AMAQI
2nd Aug 20253212 PMAQI
2nd Aug 2025441 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025563 PMAQI
2nd Aug 2025544 PMAQI
2nd Aug 2025525 PMAQI
2nd Aug 2025526 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025408 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253610 PMAQI
2nd Aug 20253911 PMAQI
3rd Aug 20253312 AMAQI
3rd Aug 2025351 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025373 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 20255210 AMAQI
3rd Aug 20255211 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025521 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025494 PMAQI
3rd Aug 2025505 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025457 PMAQI
3rd Aug 2025468 PMAQI
3rd Aug 2025419 PMAQI
3rd Aug 20254610 PMAQI
3rd Aug 20253911 PMAQI
4th Aug 20253812 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025393 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 20257110 AMAQI
4th Aug 20258211 AMAQI
4th Aug 20258412 PMAQI
4th Aug 2025901 PMAQI
4th Aug 20251002 PMAQI
4th Aug 2025863 PMAQI
4th Aug 2025924 PMAQI
4th Aug 2025945 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 20254812 AMAQI
5th Aug 2025441 AMAQI
5th Aug 2025422 AMAQI
5th Aug 2025403 AMAQI
30°C27/33°C
5th Aug 2025514 AMAQI
4 AM5th Aug 2025545 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025517 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025579 AMAQI
5th Aug 20256510 AMAQI
5th Aug 20256011 AMAQI
11 AM5th Aug 20256012 PMAQI
5th Aug 2025551 PMAQI
5th Aug 2025562 PMAQI
5th Aug 2025573 PMAQI
5th Aug 2025604 PMAQI
5th Aug 2025505 PMAQI
5th Aug 2025476 PMAQI
6 PM5th Aug 2025447 PMAQI
5th Aug 2025498 PMAQI
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 4 PM
46AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
9 AM - 10 AM
40AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 4 PM (Avg. 46), while the lowest AQI was between 9 AM to 10 AM (Avg. 40).
Night time
Avg. Highest Time
12 AM - 3 AM
45AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 11 PM
42AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 45), while the lowest AQI was between 7 PM to 11 PM (Avg. 42).
2025 Days Vs Air Quality
Yotsukaido, Chiba, Japan
2025
91%
196
9%
20
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
196 DaysModerate
20 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
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
34AQI
2nd January 2025
32AQI
32AQI
3rd January 2025
27AQI
27AQI
4th January 2025
31AQI
31AQI
5th January 2025
37AQI
37AQI
6th January 2025
52AQI
52AQI
7th January 2025
32AQI
32AQI
8th January 2025
36AQI
36AQI
9th January 2025
29AQI
29AQI
10th January 2025
31AQI
31AQI
11th January 2025
30AQI
30AQI
12th January 2025
35AQI
35AQI
13th January 2025
29AQI
29AQI
14th January 2025
39AQI
39AQI
15th January 2025
38AQI
38AQI
16th January 2025
33AQI
33AQI
17th January 2025
32AQI
32AQI
18th January 2025
35AQI
35AQI
19th January 2025
57AQI
57AQI
20th January 2025
40AQI
40AQI
21st January 2025
45AQI
45AQI
22nd January 2025
41AQI
41AQI
23rd January 2025
53AQI
53AQI
24th January 2025
46AQI
46AQI
25th January 2025
41AQI
41AQI
26th January 2025
38AQI
38AQI
27th January 2025
37AQI
37AQI
28th January 2025
39AQI
39AQI
29th January 2025
33AQI
33AQI
30th January 2025
35AQI
35AQI
31st January 2025
31AQI
31AQI
1st February 2025
41AQI
41AQI
2nd February 2025
32AQI
32AQI
3rd February 2025
41AQI
41AQI
4th February 2025
31AQI
31AQI
5th February 2025
35AQI
35AQI
6th February 2025
30AQI
30AQI
7th February 2025
30AQI
30AQI
8th February 2025
33AQI
33AQI
9th February 2025
31AQI
31AQI
10th February 2025
31AQI
31AQI
11th February 2025
35AQI
35AQI
12th February 2025
33AQI
33AQI
13th February 2025
44AQI
44AQI
14th February 2025
30AQI
30AQI
15th February 2025
44AQI
44AQI
16th February 2025
38AQI
38AQI
17th February 2025
39AQI
39AQI
18th February 2025
33AQI
33AQI
19th February 2025
32AQI
32AQI
20th February 2025
31AQI
31AQI
21st February 2025
31AQI
31AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
32AQI
32AQI
24th February 2025
35AQI
35AQI
25th February 2025
34AQI
34AQI
26th February 2025
35AQI
35AQI
27th February 2025
40AQI
40AQI
28th February 2025
53AQI
53AQI
1st March 2025
47AQI
47AQI
2nd March 2025
62AQI
62AQI
3rd March 2025
41AQI
41AQI
4th March 2025
41AQI
41AQI
5th March 2025
27AQI
27AQI
6th March 2025
34AQI
34AQI
7th March 2025
32AQI
32AQI
8th March 2025
33AQI
33AQI
9th March 2025
32AQI
32AQI
10th March 2025
36AQI
36AQI
11th March 2025
38AQI
38AQI
12th March 2025
44AQI
44AQI
13th March 2025
39AQI
39AQI
14th March 2025
39AQI
39AQI
15th March 2025
34AQI
34AQI
16th March 2025
26AQI
26AQI
17th March 2025
20AQI
20AQI
18th March 2025
25AQI
25AQI
19th March 2025
20AQI
20AQI
20th March 2025
24AQI
24AQI
21st March 2025
43AQI
43AQI
22nd March 2025
48AQI
48AQI
23rd March 2025
56AQI
56AQI
24th March 2025
50AQI
50AQI
25th March 2025
66AQI
66AQI
26th March 2025
80AQI
80AQI
27th March 2025
68AQI
68AQI
28th March 2025
47AQI
47AQI
29th March 2025
39AQI
39AQI
30th March 2025
43AQI
43AQI
31st March 2025
35AQI
35AQI
1st April 2025
30AQI
30AQI
2nd April 2025
24AQI
24AQI
3rd April 2025
22AQI
22AQI
4th April 2025
22AQI
22AQI
5th April 2025
23AQI
23AQI
6th April 2025
24AQI
24AQI
7th April 2025
29AQI
29AQI
8th April 2025
35AQI
35AQI
9th April 2025
27AQI
27AQI
10th April 2025
44AQI
44AQI
11th April 2025
40AQI
40AQI
12th April 2025
36AQI
36AQI
13th April 2025
28AQI
28AQI
14th April 2025
39AQI
39AQI
15th April 2025
31AQI
31AQI
16th April 2025
32AQI
32AQI
17th April 2025
44AQI
44AQI
18th April 2025
50AQI
50AQI
19th April 2025
59AQI
59AQI
20th April 2025
49AQI
49AQI
21st April 2025
44AQI
44AQI
22nd April 2025
43AQI
43AQI
23rd April 2025
28AQI
28AQI
24th April 2025
35AQI
35AQI
25th April 2025
35AQI
35AQI
26th April 2025
42AQI
42AQI
27th April 2025
46AQI
46AQI
28th April 2025
39AQI
39AQI
29th April 2025
34AQI
34AQI
30th April 2025
42AQI
42AQI
1st May 2025
37AQI
37AQI
2nd May 2025
28AQI
28AQI
3rd May 2025
30AQI
30AQI
4th May 2025
36AQI
36AQI
5th May 2025
30AQI
30AQI
6th May 2025
26AQI
26AQI
7th May 2025
23AQI
23AQI
8th May 2025
25AQI
25AQI
9th May 2025
26AQI
26AQI
10th May 2025
21AQI
21AQI
11th May 2025
29AQI
29AQI
12th May 2025
27AQI
27AQI
13th May 2025
35AQI
35AQI
14th May 2025
28AQI
28AQI
15th May 2025
35AQI
35AQI
16th May 2025
40AQI
40AQI
17th May 2025
28AQI
28AQI
18th May 2025
42AQI
42AQI
19th May 2025
40AQI
40AQI
20th May 2025
59AQI
59AQI
21st May 2025
41AQI
41AQI
22nd May 2025
42AQI
42AQI
23rd May 2025
36AQI
36AQI
24th May 2025
37AQI
37AQI
25th May 2025
30AQI
30AQI
26th May 2025
26AQI
26AQI
27th May 2025
23AQI
23AQI
28th May 2025
23AQI
23AQI
29th May 2025
25AQI
25AQI
30th May 2025
21AQI
21AQI
31st May 2025
16AQI
16AQI
1st June 2025
20AQI
20AQI
2nd June 2025
25AQI
25AQI
3rd June 2025
27AQI
27AQI
4th June 2025
31AQI
31AQI
5th June 2025
36AQI
36AQI
6th June 2025
42AQI
42AQI
7th June 2025
45AQI
45AQI
8th June 2025
52AQI
52AQI
9th June 2025
39AQI
39AQI
10th June 2025
32AQI
32AQI
11th June 2025
25AQI
25AQI
12th June 2025
33AQI
33AQI
13th June 2025
30AQI
30AQI
14th June 2025
31AQI
31AQI
15th June 2025
36AQI
36AQI
16th June 2025
37AQI
37AQI
17th June 2025
47AQI
47AQI
18th June 2025
40AQI
40AQI
19th June 2025
38AQI
38AQI
20th June 2025
32AQI
32AQI
21st June 2025
32AQI
32AQI
22nd June 2025
25AQI
25AQI
23rd June 2025
24AQI
24AQI
24th June 2025
23AQI
23AQI
25th June 2025
22AQI
22AQI
26th June 2025
23AQI
23AQI
27th June 2025
30AQI
30AQI
28th June 2025
28AQI
28AQI
29th June 2025
33AQI
33AQI
30th June 2025
36AQI
36AQI
1st July 2025
36AQI
36AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
43AQI
43AQI
4th July 2025
43AQI
43AQI
5th July 2025
49AQI
49AQI
6th July 2025
67AQI
67AQI
7th July 2025
74AQI
74AQI
8th July 2025
77AQI
77AQI
9th July 2025
75AQI
75AQI
10th July 2025
58AQI
58AQI
11th July 2025
51AQI
51AQI
12th July 2025
53AQI
53AQI
13th July 2025
49AQI
49AQI
14th July 2025
42AQI
42AQI
15th July 2025
40AQI
40AQI
16th July 2025
39AQI
39AQI
17th July 2025
41AQI
41AQI
18th July 2025
38AQI
38AQI
19th July 2025
35AQI
35AQI
20th July 2025
34AQI
34AQI
21st July 2025
35AQI
35AQI
22nd July 2025
35AQI
35AQI
23rd July 2025
37AQI
37AQI
24th July 2025
38AQI
38AQI
25th July 2025
34AQI
34AQI
26th July 2025
33AQI
33AQI
27th July 2025
30AQI
30AQI
28th July 2025
37AQI
37AQI
29th July 2025
31AQI
31AQI
30th July 2025
32AQI
32AQI
31st July 2025
30AQI
30AQI
1st August 2025
33AQI
33AQI
2nd August 2025
40AQI
40AQI
3rd August 2025
45AQI
45AQI
4th August 2025
54AQI
54AQI
37AQI
35AQI
41AQI
36AQI
31AQI
32AQI
44AQI
43AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202537AQI
28
3
27
1
26
5
29
1
30
1
29
1
24
7
3
1
196
20
Highest AQI recorded in
July44AQI
Lowest AQI recorded in
May31AQI
202439AQI
29
2
25
4
24
7
25
5
27
4
29
1
13
18
30
1
27
3
31
28
2
31
319
47
Highest AQI recorded in
July58AQI
Lowest AQI recorded in
August32AQI
202341AQI
21
10
20
8
28
3
24
6
27
4
19
11
25
6
30
1
30
31
21
8
23
8
299
65
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
August30AQI
202240AQI
27
4
17
4
24
7
23
7
28
3
24
6
22
2
1
28
28
3
26
4
26
5
274
45
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
August32AQI
202138AQI
21
10
23
5
26
4
1
28
2
24
7
27
3
27
4
26
5
29
1
30
1
23
7
20
11
304
60
1
Highest AQI recorded in
December44AQI
Lowest AQI recorded in
April33AQI
202038AQI
11
2
19
2
18
25
5
28
3
19
12
18
1
28
3
20
10
22
9
208
47
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
May30AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
41AQILeast Polluted Year Recorded
2025(Avg.)
37AQIYotsukaido's annual 2025 AQI (37) shows an average percentage change of -5.8% (improved AQI) compared to previous years: 2020 (38), 2021 (38), 2022 (40), 2023 (41), 2024 (39).
