Yachiyo, 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+
November Air Quality Analysis
Yachiyo, Chiba, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Nov 2023
75AQILowest AQI recorded on
15th Nov 2022
18AQISame Day Analysis (25th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 67 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 26th Nov - 27th Nov 2025
Yachiyo, Chiba, Japan
AQI
Day
Night
.
6 AM26th Nov 2025
4 PM
5 AM27th Nov 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
10AM26th Nov
70AQI
Avg. Lowest Time
11PM26th Nov
38AQI
In the last 24 hours,
Yachiyo's AQI reached its highest point of 70 at 10 AM during the Night, while the lowest point, 38, was recorded at 11 PM during the Night between 26th Nov and 27th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Yachiyo, Chiba, Japan
OctNov
28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th
Day
Night
28th Oct 2025506 AMAQI
28th Oct 2025527 AMAQI
28th Oct 2025498 AMAQI
28th Oct 2025509 AMAQI
28th Oct 20254810 AMAQI
28th Oct 20254511 AMAQI
28th Oct 20254312 PMAQI
28th Oct 2025361 PMAQI
28th Oct 2025362 PMAQI
28th Oct 2025363 PMAQI
28th Oct 2025334 PMAQI
28th Oct 2025305 PMAQI
28th Oct 2025346 PMAQI
28th Oct 2025347 PMAQI
28th Oct 2025358 PMAQI
28th Oct 2025359 PMAQI
28th Oct 20254710 PMAQI
28th Oct 20254211 PMAQI
29th Oct 20253312 AMAQI
29th Oct 2025331 AMAQI
29th Oct 2025382 AMAQI
29th Oct 2025383 AMAQI
29th Oct 2025334 AMAQI
29th Oct 2025245 AMAQI
16°C13/18°C
29th Oct 2025266 AMAQI
29th Oct 2025287 AMAQI
29th Oct 2025338 AMAQI
29th Oct 2025379 AMAQI
29th Oct 20253710 AMAQI
29th Oct 20254611 AMAQI
29th Oct 20255012 PMAQI
29th Oct 2025451 PMAQI
29th Oct 2025462 PMAQI
29th Oct 2025453 PMAQI
29th Oct 2025534 PMAQI
29th Oct 2025555 PMAQI
29th Oct 2025556 PMAQI
29th Oct 2025587 PMAQI
29th Oct 2025608 PMAQI
29th Oct 2025639 PMAQI
29th Oct 20256410 PMAQI
29th Oct 20256511 PMAQI
30th Oct 20256312 AMAQI
30th Oct 2025621 AMAQI
30th Oct 2025572 AMAQI
30th Oct 2025563 AMAQI
30th Oct 2025564 AMAQI
30th Oct 2025555 AMAQI
14°C14/15°C
30th Oct 2025556 AMAQI
30th Oct 2025557 AMAQI
30th Oct 2025588 AMAQI
30th Oct 2025619 AMAQI
30th Oct 20256210 AMAQI
30th Oct 20256211 AMAQI
30th Oct 20256212 PMAQI
30th Oct 2025591 PMAQI
30th Oct 2025592 PMAQI
30th Oct 2025633 PMAQI
30th Oct 2025624 PMAQI
30th Oct 2025635 PMAQI
30th Oct 2025526 PMAQI
30th Oct 2025467 PMAQI
30th Oct 2025488 PMAQI
30th Oct 2025489 PMAQI
30th Oct 20255510 PMAQI
30th Oct 20256011 PMAQI
31st Oct 20256012 AMAQI
31st Oct 2025561 AMAQI
31st Oct 2025602 AMAQI
31st Oct 2025613 AMAQI
31st Oct 2025594 AMAQI
31st Oct 2025625 AMAQI
15°C12/19°C
31st Oct 2025646 AMAQI
31st Oct 2025667 AMAQI
31st Oct 2025688 AMAQI
31st Oct 2025699 AMAQI
31st Oct 20257010 AMAQI
31st Oct 20257011 AMAQI
31st Oct 20256912 PMAQI
31st Oct 2025681 PMAQI
31st Oct 2025682 PMAQI
31st Oct 2025693 PMAQI
31st Oct 2025704 PMAQI
31st Oct 2025715 PMAQI
31st Oct 2025696 PMAQI
31st Oct 2025677 PMAQI
31st Oct 2025628 PMAQI
31st Oct 2025579 PMAQI
31st Oct 20253210 PMAQI
31st Oct 20252111 PMAQI
1st Nov 20252112 AMAQI
1st Nov 2025191 AMAQI
1st Nov 2025142 AMAQI
1st Nov 2025153 AMAQI
1st Nov 2025134 AMAQI
1st Nov 2025135 AMAQI
17°C15/19°C
1st Nov 2025126 AMAQI
1st Nov 2025127 AMAQI
1st Nov 2025138 AMAQI
1st Nov 2025149 AMAQI
1st Nov 20251410 AMAQI
1st Nov 20251711 AMAQI
1st Nov 20251612 PMAQI
1st Nov 2025151 PMAQI
1st Nov 2025212 PMAQI
1st Nov 2025223 PMAQI
1st Nov 2025264 PMAQI
1st Nov 2025245 PMAQI
1st Nov 2025276 PMAQI
1st Nov 2025257 PMAQI
1st Nov 2025238 PMAQI
1st Nov 2025269 PMAQI
1st Nov 20252910 PMAQI
1st Nov 20253011 PMAQI
2nd Nov 20253212 AMAQI
2nd Nov 2025331 AMAQI
2nd Nov 2025292 AMAQI
2nd Nov 2025213 AMAQI
2nd Nov 2025214 AMAQI
2nd Nov 2025195 AMAQI
21°C18/23°C
2nd Nov 2025216 AMAQI
2nd Nov 2025247 AMAQI
2nd Nov 2025268 AMAQI
2nd Nov 2025269 AMAQI
2nd Nov 20252910 AMAQI
2nd Nov 20253011 AMAQI
2nd Nov 20253912 PMAQI
2nd Nov 2025361 PMAQI
2nd Nov 2025322 PMAQI
2nd Nov 2025353 PMAQI
2nd Nov 2025364 PMAQI
2nd Nov 2025355 PMAQI
2nd Nov 2025396 PMAQI
2nd Nov 2025397 PMAQI
2nd Nov 2025388 PMAQI
2nd Nov 2025389 PMAQI
2nd Nov 20254410 PMAQI
2nd Nov 20254711 PMAQI
3rd Nov 20254712 AMAQI
3rd Nov 2025511 AMAQI
3rd Nov 2025542 AMAQI
3rd Nov 2025453 AMAQI
3rd Nov 2025494 AMAQI
3rd Nov 2025515 AMAQI
18°C15/20°C
3rd Nov 2025526 AMAQI
3rd Nov 2025587 AMAQI
3rd Nov 2025568 AMAQI
3rd Nov 2025599 AMAQI
3rd Nov 20255510 AMAQI
3rd Nov 20256611 AMAQI
3rd Nov 20255912 PMAQI
3rd Nov 2025561 PMAQI
3rd Nov 2025542 PMAQI
3rd Nov 2025393 PMAQI
3rd Nov 2025274 PMAQI
3rd Nov 2025255 PMAQI
3rd Nov 2025206 PMAQI
3rd Nov 2025197 PMAQI
3rd Nov 2025198 PMAQI
3rd Nov 2025229 PMAQI
3rd Nov 20252410 PMAQI
3rd Nov 20252511 PMAQI
4th Nov 20252412 AMAQI
4th Nov 2025231 AMAQI
4th Nov 2025222 AMAQI
4th Nov 2025243 AMAQI
4th Nov 2025344 AMAQI
4th Nov 2025335 AMAQI
16°C13/19°C
4th Nov 2025316 AMAQI
4th Nov 2025307 AMAQI
4th Nov 2025268 AMAQI
4th Nov 2025349 AMAQI
4th Nov 20254110 AMAQI
4th Nov 20254511 AMAQI
4th Nov 20254312 PMAQI
4th Nov 2025421 PMAQI
4th Nov 2025402 PMAQI
4th Nov 2025373 PMAQI
4th Nov 2025374 PMAQI
4th Nov 2025355 PMAQI
4th Nov 2025356 PMAQI
4th Nov 2025417 PMAQI
4th Nov 2025428 PMAQI
4th Nov 2025429 PMAQI
4th Nov 20252610 PMAQI
4th Nov 20253111 PMAQI
5th Nov 20253312 AMAQI
5th Nov 2025441 AMAQI
5th Nov 2025422 AMAQI
5th Nov 2025403 AMAQI
5th Nov 2025434 AMAQI
5th Nov 2025475 AMAQI
14°C12/17°C
5th Nov 2025466 AMAQI
5th Nov 2025507 AMAQI
5th Nov 2025498 AMAQI
5th Nov 2025529 AMAQI
5th Nov 20255610 AMAQI
5th Nov 20254511 AMAQI
5th Nov 20254512 PMAQI
5th Nov 2025521 PMAQI
5th Nov 2025532 PMAQI
5th Nov 2025533 PMAQI
5th Nov 2025564 PMAQI
5th Nov 2025565 PMAQI
5th Nov 2025566 PMAQI
5th Nov 2025567 PMAQI
5th Nov 2025588 PMAQI
5th Nov 2025589 PMAQI
5th Nov 20256010 PMAQI
5th Nov 20256511 PMAQI
6th Nov 20256612 AMAQI
6th Nov 2025671 AMAQI
6th Nov 2025682 AMAQI
6th Nov 2025663 AMAQI
6th Nov 2025614 AMAQI
6th Nov 2025545 AMAQI
15°C13/18°C
6th Nov 2025476 AMAQI
6th Nov 2025427 AMAQI
6th Nov 2025438 AMAQI
6th Nov 2025449 AMAQI
6th Nov 20254310 AMAQI
6th Nov 20254111 AMAQI
6th Nov 20254812 PMAQI
6th Nov 2025501 PMAQI
6th Nov 2025422 PMAQI
6th Nov 2025413 PMAQI
6th Nov 2025414 PMAQI
6th Nov 2025405 PMAQI
6th Nov 2025406 PMAQI
6th Nov 2025397 PMAQI
6th Nov 2025428 PMAQI
6th Nov 2025439 PMAQI
6th Nov 20254610 PMAQI
6th Nov 20254611 PMAQI
7th Nov 20255112 AMAQI
7th Nov 2025511 AMAQI
7th Nov 2025502 AMAQI
7th Nov 2025503 AMAQI
7th Nov 2025354 AMAQI
7th Nov 2025335 AMAQI
15°C13/17°C
7th Nov 2025336 AMAQI
7th Nov 2025497 AMAQI
7th Nov 2025538 AMAQI
7th Nov 2025539 AMAQI
7th Nov 20255410 AMAQI
7th Nov 20255511 AMAQI
7th Nov 20255412 PMAQI
7th Nov 2025621 PMAQI
7th Nov 2025612 PMAQI
7th Nov 2025603 PMAQI
7th Nov 2025544 PMAQI
7th Nov 2025535 PMAQI
7th Nov 2025536 PMAQI
7th Nov 2025527 PMAQI
7th Nov 2025518 PMAQI
7th Nov 2025529 PMAQI
7th Nov 20255410 PMAQI
7th Nov 20255311 PMAQI
8th Nov 20255412 AMAQI
8th Nov 2025521 AMAQI
8th Nov 2025462 AMAQI
8th Nov 2025453 AMAQI
8th Nov 2025484 AMAQI
8th Nov 2025415 AMAQI
16°C13/20°C
8th Nov 2025416 AMAQI
8th Nov 2025527 AMAQI
8th Nov 2025558 AMAQI
8th Nov 2025559 AMAQI
8th Nov 20255610 AMAQI
8th Nov 20255611 AMAQI
8th Nov 20255612 PMAQI
8th Nov 2025491 PMAQI
8th Nov 2025452 PMAQI
8th Nov 2025453 PMAQI
8th Nov 2025594 PMAQI
8th Nov 2025595 PMAQI
8th Nov 2025596 PMAQI
8th Nov 2025567 PMAQI
8th Nov 2025568 PMAQI
8th Nov 2025549 PMAQI
8th Nov 20252910 PMAQI
8th Nov 20251911 PMAQI
9th Nov 20253512 AMAQI
9th Nov 2025531 AMAQI
9th Nov 2025532 AMAQI
9th Nov 2025523 AMAQI
9th Nov 2025484 AMAQI
9th Nov 2025405 AMAQI
15°C14/15°C
9th Nov 2025386 AMAQI
9th Nov 2025377 AMAQI
9th Nov 2025398 AMAQI
9th Nov 2025529 AMAQI
9th Nov 20255010 AMAQI
9th Nov 20255211 AMAQI
9th Nov 20255312 PMAQI
9th Nov 2025521 PMAQI
9th Nov 2025422 PMAQI
9th Nov 2025483 PMAQI
9th Nov 2025454 PMAQI
9th Nov 2025425 PMAQI
9th Nov 2025376 PMAQI
9th Nov 2025697 PMAQI
9th Nov 2025688 PMAQI
9th Nov 2025699 PMAQI
9th Nov 20256810 PMAQI
9th Nov 20256911 PMAQI
10th Nov 20252812 AMAQI
10th Nov 2025291 AMAQI
10th Nov 2025302 AMAQI
10th Nov 2025543 AMAQI
10th Nov 2025674 AMAQI
10th Nov 2025675 AMAQI
15°C13/17°C
10th Nov 2025676 AMAQI
10th Nov 2025667 AMAQI
10th Nov 2025658 AMAQI
10th Nov 2025649 AMAQI
10th Nov 20254710 AMAQI
10th Nov 20255411 AMAQI
10th Nov 20254312 PMAQI
10th Nov 2025381 PMAQI
10th Nov 2025382 PMAQI
10th Nov 2025393 PMAQI
10th Nov 2025354 PMAQI
10th Nov 2025255 PMAQI
10th Nov 2025246 PMAQI
10th Nov 2025217 PMAQI
10th Nov 2025258 PMAQI
10th Nov 2025269 PMAQI
10th Nov 20252110 PMAQI
10th Nov 20252111 PMAQI
11th Nov 20252312 AMAQI
11th Nov 2025271 AMAQI
11th Nov 2025272 AMAQI
11th Nov 2025273 AMAQI
11th Nov 2025234 AMAQI
11th Nov 2025265 AMAQI
16°C14/21°C
11th Nov 2025246 AMAQI
11th Nov 2025267 AMAQI
11th Nov 2025268 AMAQI
11th Nov 2025299 AMAQI
11th Nov 20253010 AMAQI
11th Nov 20253311 AMAQI
11th Nov 20253412 PMAQI
11th Nov 2025341 PMAQI
11th Nov 2025342 PMAQI
11th Nov 2025333 PMAQI
11th Nov 2025324 PMAQI
11th Nov 2025365 PMAQI
11th Nov 2025386 PMAQI
11th Nov 2025357 PMAQI
11th Nov 2025308 PMAQI
11th Nov 2025349 PMAQI
11th Nov 20253910 PMAQI
11th Nov 20253911 PMAQI
12th Nov 20254012 AMAQI
12th Nov 2025341 AMAQI
12th Nov 2025322 AMAQI
12th Nov 2025363 AMAQI
12th Nov 2025354 AMAQI
12th Nov 2025375 AMAQI
13°C12/14°C
12th Nov 2025326 AMAQI
12th Nov 2025277 AMAQI
12th Nov 2025408 AMAQI
12th Nov 2025419 AMAQI
12th Nov 20253810 AMAQI
12th Nov 20254411 AMAQI
12th Nov 20254312 PMAQI
12th Nov 2025471 PMAQI
12th Nov 2025422 PMAQI
12th Nov 2025403 PMAQI
12th Nov 2025494 PMAQI
12th Nov 2025495 PMAQI
12th Nov 2025506 PMAQI
12th Nov 2025467 PMAQI
12th Nov 2025508 PMAQI
12th Nov 2025539 PMAQI
12th Nov 20255910 PMAQI
12th Nov 20256311 PMAQI
13th Nov 20256712 AMAQI
13th Nov 2025651 AMAQI
13th Nov 2025602 AMAQI
13th Nov 2025583 AMAQI
13th Nov 2025604 AMAQI
13th Nov 2025615 AMAQI
13°C10/16°C
13th Nov 2025656 AMAQI
13th Nov 2025627 AMAQI
13th Nov 2025588 AMAQI
13th Nov 2025639 AMAQI
13th Nov 20256710 AMAQI
13th Nov 20256511 AMAQI
13th Nov 20255912 PMAQI
13th Nov 2025571 PMAQI
13th Nov 2025582 PMAQI
13th Nov 2025573 PMAQI
13th Nov 2025594 PMAQI
13th Nov 2025695 PMAQI
13th Nov 2025686 PMAQI
13th Nov 2025677 PMAQI
13th Nov 2025698 PMAQI
13th Nov 2025739 PMAQI
13th Nov 20257610 PMAQI
13th Nov 20257811 PMAQI
14th Nov 20258512 AMAQI
14th Nov 2025841 AMAQI
14th Nov 2025782 AMAQI
14th Nov 2025803 AMAQI
14th Nov 2025744 AMAQI
14th Nov 2025685 AMAQI
15°C14/16°C
14th Nov 2025666 AMAQI
14th Nov 2025687 AMAQI
14th Nov 2025688 AMAQI
14th Nov 2025789 AMAQI
14th Nov 20257610 AMAQI
14th Nov 20256611 AMAQI
14th Nov 20256612 PMAQI
14th Nov 2025651 PMAQI
14th Nov 2025632 PMAQI
14th Nov 2025613 PMAQI
14th Nov 2025594 PMAQI
14th Nov 2025575 PMAQI
14th Nov 2025596 PMAQI
14th Nov 2025637 PMAQI
14th Nov 2025708 PMAQI
14th Nov 2025719 PMAQI
14th Nov 20256710 PMAQI
14th Nov 20256711 PMAQI
15th Nov 20256712 AMAQI
15th Nov 2025651 AMAQI
15th Nov 2025612 AMAQI
15th Nov 2025543 AMAQI
15th Nov 2025454 AMAQI
15th Nov 2025425 AMAQI
15°C13/18°C
15th Nov 2025356 AMAQI
15th Nov 2025367 AMAQI
15th Nov 2025378 AMAQI
15th Nov 2025379 AMAQI
15th Nov 20254010 AMAQI
15th Nov 20254811 AMAQI
15th Nov 20254912 PMAQI
15th Nov 2025521 PMAQI
15th Nov 2025372 PMAQI
15th Nov 2025353 PMAQI
15th Nov 2025364 PMAQI
15th Nov 2025395 PMAQI
15th Nov 2025466 PMAQI
15th Nov 2025467 PMAQI
15th Nov 2025438 PMAQI
15th Nov 2025419 PMAQI
15th Nov 20254310 PMAQI
15th Nov 20254811 PMAQI
16th Nov 20255212 AMAQI
16th Nov 2025541 AMAQI
16th Nov 2025572 AMAQI
16th Nov 2025553 AMAQI
16th Nov 2025574 AMAQI
16th Nov 2025605 AMAQI
15°C13/17°C
16th Nov 2025576 AMAQI
16th Nov 2025567 AMAQI
16th Nov 2025558 AMAQI
16th Nov 2025599 AMAQI
16th Nov 20255810 AMAQI
16th Nov 20255911 AMAQI
16th Nov 20255712 PMAQI
16th Nov 2025641 PMAQI
16th Nov 2025652 PMAQI
16th Nov 2025653 PMAQI
16th Nov 2025584 PMAQI
16th Nov 2025535 PMAQI
16th Nov 2025556 PMAQI
16th Nov 2025517 PMAQI
16th Nov 2025478 PMAQI
16th Nov 2025509 PMAQI
16th Nov 20254810 PMAQI
16th Nov 20255011 PMAQI
17th Nov 20255112 AMAQI
17th Nov 2025571 AMAQI
17th Nov 2025582 AMAQI
17th Nov 2025593 AMAQI
17th Nov 2025604 AMAQI
17th Nov 2025605 AMAQI
15°C13/17°C
17th Nov 2025596 AMAQI
17th Nov 2025597 AMAQI
17th Nov 2025608 AMAQI
17th Nov 2025619 AMAQI
17th Nov 20256510 AMAQI
17th Nov 20256511 AMAQI
17th Nov 20256212 PMAQI
17th Nov 2025621 PMAQI
17th Nov 2025632 PMAQI
17th Nov 2025573 PMAQI
17th Nov 2025594 PMAQI
17th Nov 2025605 PMAQI
17th Nov 2025596 PMAQI
17th Nov 2025617 PMAQI
17th Nov 2025638 PMAQI
17th Nov 2025649 PMAQI
17th Nov 20256210 PMAQI
17th Nov 20256011 PMAQI
18th Nov 20255812 AMAQI
18th Nov 2025561 AMAQI
18th Nov 2025562 AMAQI
18th Nov 2025553 AMAQI
18th Nov 2025554 AMAQI
18th Nov 2025515 AMAQI
17°C14/20°C
18th Nov 2025486 AMAQI
18th Nov 2025467 AMAQI
18th Nov 2025478 AMAQI
18th Nov 2025379 AMAQI
18th Nov 20252810 AMAQI
18th Nov 20252111 AMAQI
18th Nov 20253112 PMAQI
18th Nov 2025271 PMAQI
18th Nov 2025232 PMAQI
18th Nov 2025203 PMAQI
18th Nov 2025154 PMAQI
18th Nov 2025205 PMAQI
18th Nov 2025226 PMAQI
18th Nov 2025237 PMAQI
18th Nov 2025208 PMAQI
18th Nov 2025209 PMAQI
18th Nov 20252210 PMAQI
18th Nov 20252111 PMAQI
19th Nov 20252012 AMAQI
19th Nov 2025181 AMAQI
19th Nov 2025202 AMAQI
19th Nov 2025213 AMAQI
19th Nov 2025204 AMAQI
19th Nov 2025205 AMAQI
12°C10/12°C
19th Nov 2025206 AMAQI
19th Nov 2025207 AMAQI
19th Nov 2025298 AMAQI
19th Nov 2025389 AMAQI
19th Nov 20254110 AMAQI
19th Nov 20253611 AMAQI
19th Nov 20253512 PMAQI
19th Nov 2025361 PMAQI
19th Nov 2025362 PMAQI
19th Nov 2025393 PMAQI
19th Nov 2025344 PMAQI
19th Nov 2025385 PMAQI
19th Nov 2025466 PMAQI
19th Nov 2025517 PMAQI
19th Nov 2025508 PMAQI
19th Nov 2025469 PMAQI
19th Nov 20255510 PMAQI
19th Nov 20256311 PMAQI
20th Nov 20256412 AMAQI
20th Nov 2025631 AMAQI
20th Nov 2025642 AMAQI
20th Nov 2025643 AMAQI
20th Nov 2025634 AMAQI
20th Nov 2025595 AMAQI
11°C8/13°C
20th Nov 2025566 AMAQI
20th Nov 2025587 AMAQI
20th Nov 2025588 AMAQI
20th Nov 2025599 AMAQI
20th Nov 20255710 AMAQI
20th Nov 20255511 AMAQI
20th Nov 20255612 PMAQI
20th Nov 2025551 PMAQI
20th Nov 2025482 PMAQI
20th Nov 2025473 PMAQI
20th Nov 2025494 PMAQI
20th Nov 2025465 PMAQI
20th Nov 2025506 PMAQI
20th Nov 2025527 PMAQI
20th Nov 2025568 PMAQI
20th Nov 2025569 PMAQI
20th Nov 20255610 PMAQI
20th Nov 20255611 PMAQI
21st Nov 20255812 AMAQI
21st Nov 2025591 AMAQI
21st Nov 2025592 AMAQI
21st Nov 2025613 AMAQI
21st Nov 2025624 AMAQI
21st Nov 2025595 AMAQI
11°C9/13°C
21st Nov 2025576 AMAQI
21st Nov 2025597 AMAQI
21st Nov 2025618 AMAQI
21st Nov 2025619 AMAQI
21st Nov 20256110 AMAQI
21st Nov 20256411 AMAQI
21st Nov 20256612 PMAQI
21st Nov 2025651 PMAQI
21st Nov 2025652 PMAQI
21st Nov 2025663 PMAQI
21st Nov 2025704 PMAQI
21st Nov 2025715 PMAQI
21st Nov 2025686 PMAQI
21st Nov 2025617 PMAQI
21st Nov 2025568 PMAQI
21st Nov 2025599 PMAQI
21st Nov 20256410 PMAQI
21st Nov 20256211 PMAQI
22nd Nov 20256012 AMAQI
22nd Nov 2025601 AMAQI
22nd Nov 2025572 AMAQI
22nd Nov 2025503 AMAQI
22nd Nov 2025384 AMAQI
22nd Nov 2025405 AMAQI
13°C10/15°C
22nd Nov 2025396 AMAQI
22nd Nov 2025497 AMAQI
22nd Nov 2025548 AMAQI
22nd Nov 2025539 AMAQI
22nd Nov 20255210 AMAQI
22nd Nov 20255411 AMAQI
22nd Nov 20256112 PMAQI
22nd Nov 2025601 PMAQI
22nd Nov 2025562 PMAQI
22nd Nov 2025323 PMAQI
22nd Nov 2025304 PMAQI
22nd Nov 2025255 PMAQI
22nd Nov 2025266 PMAQI
22nd Nov 2025307 PMAQI
22nd Nov 2025348 PMAQI
22nd Nov 2025419 PMAQI
22nd Nov 20253810 PMAQI
22nd Nov 20253211 PMAQI
23rd Nov 20253112 AMAQI
23rd Nov 2025361 AMAQI
23rd Nov 2025372 AMAQI
23rd Nov 2025343 AMAQI
23rd Nov 2025334 AMAQI
23rd Nov 2025345 AMAQI
13°C10/16°C
23rd Nov 2025376 AMAQI
23rd Nov 2025377 AMAQI
23rd Nov 2025388 AMAQI
23rd Nov 2025389 AMAQI
23rd Nov 20254510 AMAQI
23rd Nov 20254611 AMAQI
23rd Nov 20255112 PMAQI
23rd Nov 2025541 PMAQI
23rd Nov 2025552 PMAQI
23rd Nov 2025553 PMAQI
23rd Nov 2025604 PMAQI
23rd Nov 2025595 PMAQI
23rd Nov 2025596 PMAQI
23rd Nov 2025617 PMAQI
23rd Nov 2025578 PMAQI
23rd Nov 2025589 PMAQI
23rd Nov 20256110 PMAQI
23rd Nov 20256311 PMAQI
24th Nov 20256412 AMAQI
24th Nov 2025641 AMAQI
24th Nov 2025662 AMAQI
24th Nov 2025663 AMAQI
24th Nov 2025604 AMAQI
24th Nov 2025595 AMAQI
14°C13/16°C
24th Nov 2025596 AMAQI
24th Nov 2025587 AMAQI
24th Nov 2025608 AMAQI
24th Nov 2025619 AMAQI
24th Nov 20256410 AMAQI
24th Nov 20256511 AMAQI
24th Nov 20255812 PMAQI
24th Nov 2025621 PMAQI
24th Nov 2025592 PMAQI
24th Nov 2025563 PMAQI
24th Nov 2025494 PMAQI
24th Nov 2025515 PMAQI
24th Nov 2025556 PMAQI
24th Nov 2025567 PMAQI
24th Nov 2025568 PMAQI
24th Nov 2025579 PMAQI
24th Nov 20255810 PMAQI
24th Nov 20255811 PMAQI
25th Nov 20255712 AMAQI
25th Nov 2025601 AMAQI
25th Nov 2025632 AMAQI
25th Nov 2025663 AMAQI
25th Nov 2025694 AMAQI
25th Nov 2025725 AMAQI
14°C11/17°C
25th Nov 2025766 AMAQI
25th Nov 2025677 AMAQI
25th Nov 2025658 AMAQI
25th Nov 2025699 AMAQI
25th Nov 20256810 AMAQI
25th Nov 20257011 AMAQI
25th Nov 20257412 PMAQI
25th Nov 2025741 PMAQI
25th Nov 2025642 PMAQI
25th Nov 2025693 PMAQI
25th Nov 2025774 PMAQI
25th Nov 2025705 PMAQI
25th Nov 2025676 PMAQI
25th Nov 2025677 PMAQI
25th Nov 2025668 PMAQI
25th Nov 2025679 PMAQI
25th Nov 20257110 PMAQI
25th Nov 20256611 PMAQI
26th Nov 20256512 AMAQI
26th Nov 2025671 AMAQI
26th Nov 2025652 AMAQI
26th Nov 2025653 AMAQI
26th Nov 2025654 AMAQI
26th Nov 2025665 AMAQI
14°C13/16°C
26th Nov 2025666 AMAQI
26th Nov 2025607 AMAQI
26th Nov 2025598 AMAQI
26th Nov 2025629 AMAQI
26th Nov 20257010 AMAQI
26th Nov 20256611 AMAQI
26th Nov 20256012 PMAQI
26th Nov 2025531 PMAQI
26th Nov 2025542 PMAQI
26th Nov 2025483 PMAQI
26th Nov 2025444 PMAQI
26th Nov 2025475 PMAQI
26th Nov 2025516 PMAQI
26th Nov 2025417 PMAQI
26th Nov 2025458 PMAQI
26th Nov 2025439 PMAQI
26th Nov 20253810 PMAQI
26th Nov 20253811 PMAQI
27th Nov 20254312 AMAQI
27th Nov 2025491 AMAQI
27th Nov 2025492 AMAQI
27th Nov 2025453 AMAQI
27th Nov 2025424 AMAQI
27th Nov 2025425 AMAQI
--°C/°C
27th Nov 2025446 AMAQI
6 AM11 AM
4 PM
11 PM
5 AM
--°C/°C
Day time
Avg. Highest Time
9 AM - 1 PM
51AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
6 AM - 8 AM
47AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 1 PM (Avg. 51), while the lowest AQI was between 6 AM to 8 AM (Avg. 47).
Night time
Avg. Highest Time
12 AM - 11 PM
48AQI
13 hours / Day
390 hours / Month
Avg. Lowest Time
12 AM - 11 PM
48AQI
13 hours / Day
390 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 48), while the lowest AQI was between 12 AM to 11 PM (Avg. 48).
2025 Days Vs Air Quality
Yachiyo, Chiba, Japan
2025
83%
274
17%
55
Total number of days with different AQI categories in last 330 days in 2025 (35 days remaining)
Good
274 DaysModerate
55 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2025, 83% of 330 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
Yachiyo, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
34AQI
34AQI
2nd January 2025
33AQI
33AQI
3rd January 2025
27AQI
27AQI
4th January 2025
30AQI
30AQI
5th January 2025
38AQI
38AQI
6th January 2025
53AQI
53AQI
7th January 2025
32AQI
32AQI
8th January 2025
36AQI
36AQI
9th January 2025
31AQI
31AQI
10th January 2025
30AQI
30AQI
11th January 2025
32AQI
32AQI
12th January 2025
35AQI
35AQI
13th January 2025
31AQI
31AQI
14th January 2025
43AQI
43AQI
15th January 2025
36AQI
36AQI
16th January 2025
35AQI
35AQI
17th January 2025
29AQI
29AQI
18th January 2025
36AQI
36AQI
19th January 2025
56AQI
56AQI
20th January 2025
42AQI
42AQI
21st January 2025
45AQI
45AQI
22nd January 2025
42AQI
42AQI
23rd January 2025
54AQI
54AQI
24th January 2025
47AQI
47AQI
25th January 2025
42AQI
42AQI
26th January 2025
37AQI
37AQI
27th January 2025
38AQI
38AQI
28th January 2025
39AQI
39AQI
29th January 2025
33AQI
33AQI
30th January 2025
34AQI
34AQI
31st January 2025
30AQI
30AQI
1st February 2025
41AQI
41AQI
2nd February 2025
34AQI
34AQI
3rd February 2025
41AQI
41AQI
4th February 2025
32AQI
32AQI
5th February 2025
34AQI
34AQI
6th February 2025
29AQI
29AQI
7th February 2025
31AQI
31AQI
8th February 2025
30AQI
30AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
33AQI
33AQI
12th February 2025
34AQI
34AQI
13th February 2025
47AQI
47AQI
14th February 2025
30AQI
30AQI
15th February 2025
48AQI
48AQI
16th February 2025
39AQI
39AQI
17th February 2025
41AQI
41AQI
18th February 2025
33AQI
33AQI
19th February 2025
33AQI
33AQI
20th February 2025
30AQI
30AQI
21st February 2025
31AQI
31AQI
22nd February 2025
33AQI
33AQI
23rd February 2025
33AQI
33AQI
24th February 2025
35AQI
35AQI
25th February 2025
36AQI
36AQI
26th February 2025
38AQI
38AQI
27th February 2025
41AQI
41AQI
28th February 2025
56AQI
56AQI
1st March 2025
49AQI
49AQI
2nd March 2025
63AQI
63AQI
3rd March 2025
40AQI
40AQI
4th March 2025
40AQI
40AQI
5th March 2025
26AQI
26AQI
6th March 2025
33AQI
33AQI
7th March 2025
31AQI
31AQI
8th March 2025
34AQI
34AQI
9th March 2025
34AQI
34AQI
10th March 2025
36AQI
36AQI
11th March 2025
42AQI
42AQI
12th March 2025
45AQI
45AQI
13th March 2025
40AQI
40AQI
14th March 2025
41AQI
41AQI
15th March 2025
34AQI
34AQI
16th March 2025
26AQI
26AQI
17th March 2025
20AQI
20AQI
18th March 2025
23AQI
23AQI
19th March 2025
18AQI
18AQI
20th March 2025
24AQI
24AQI
21st March 2025
43AQI
43AQI
22nd March 2025
49AQI
49AQI
23rd March 2025
55AQI
55AQI
24th March 2025
52AQI
52AQI
25th March 2025
66AQI
66AQI
26th March 2025
79AQI
79AQI
27th March 2025
70AQI
70AQI
28th March 2025
47AQI
47AQI
29th March 2025
38AQI
38AQI
30th March 2025
43AQI
43AQI
31st March 2025
33AQI
33AQI
1st April 2025
29AQI
29AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
20AQI
20AQI
4th April 2025
22AQI
22AQI
5th April 2025
24AQI
24AQI
6th April 2025
24AQI
24AQI
7th April 2025
29AQI
29AQI
8th April 2025
36AQI
36AQI
9th April 2025
26AQI
26AQI
10th April 2025
46AQI
46AQI
11th April 2025
39AQI
39AQI
12th April 2025
38AQI
38AQI
13th April 2025
28AQI
28AQI
14th April 2025
39AQI
39AQI
15th April 2025
29AQI
29AQI
16th April 2025
32AQI
32AQI
17th April 2025
46AQI
46AQI
18th April 2025
51AQI
51AQI
19th April 2025
61AQI
61AQI
20th April 2025
50AQI
50AQI
21st April 2025
43AQI
43AQI
22nd April 2025
44AQI
44AQI
23rd April 2025
29AQI
29AQI
24th April 2025
38AQI
38AQI
25th April 2025
36AQI
36AQI
26th April 2025
44AQI
44AQI
27th April 2025
47AQI
47AQI
28th April 2025
42AQI
42AQI
29th April 2025
34AQI
34AQI
30th April 2025
42AQI
42AQI
1st May 2025
37AQI
37AQI
2nd May 2025
27AQI
27AQI
3rd May 2025
30AQI
30AQI
4th May 2025
36AQI
36AQI
5th May 2025
33AQI
33AQI
6th May 2025
26AQI
26AQI
7th May 2025
23AQI
23AQI
8th May 2025
25AQI
25AQI
9th May 2025
28AQI
28AQI
10th May 2025
23AQI
23AQI
11th May 2025
28AQI
28AQI
12th May 2025
24AQI
24AQI
13th May 2025
34AQI
34AQI
14th May 2025
33AQI
33AQI
15th May 2025
37AQI
37AQI
16th May 2025
40AQI
40AQI
17th May 2025
28AQI
28AQI
18th May 2025
45AQI
45AQI
19th May 2025
39AQI
39AQI
20th May 2025
61AQI
61AQI
21st May 2025
42AQI
42AQI
22nd May 2025
43AQI
43AQI
23rd May 2025
38AQI
38AQI
24th May 2025
37AQI
37AQI
25th May 2025
29AQI
29AQI
26th May 2025
26AQI
26AQI
27th May 2025
24AQI
24AQI
28th May 2025
23AQI
23AQI
29th May 2025
27AQI
27AQI
30th May 2025
23AQI
23AQI
31st May 2025
16AQI
16AQI
1st June 2025
20AQI
20AQI
2nd June 2025
27AQI
27AQI
3rd June 2025
29AQI
29AQI
4th June 2025
32AQI
32AQI
5th June 2025
38AQI
38AQI
6th June 2025
45AQI
45AQI
7th June 2025
46AQI
46AQI
8th June 2025
54AQI
54AQI
9th June 2025
41AQI
41AQI
10th June 2025
35AQI
35AQI
11th June 2025
29AQI
29AQI
12th June 2025
37AQI
37AQI
13th June 2025
34AQI
34AQI
14th June 2025
32AQI
32AQI
15th June 2025
40AQI
40AQI
16th June 2025
39AQI
39AQI
17th June 2025
48AQI
48AQI
18th June 2025
42AQI
42AQI
19th June 2025
39AQI
39AQI
20th June 2025
34AQI
34AQI
21st June 2025
31AQI
31AQI
22nd June 2025
22AQI
22AQI
23rd June 2025
24AQI
24AQI
24th June 2025
23AQI
23AQI
25th June 2025
20AQI
20AQI
26th June 2025
22AQI
22AQI
27th June 2025
32AQI
32AQI
28th June 2025
30AQI
30AQI
29th June 2025
34AQI
34AQI
30th June 2025
39AQI
39AQI
1st July 2025
38AQI
38AQI
2nd July 2025
44AQI
44AQI
3rd July 2025
40AQI
40AQI
4th July 2025
44AQI
44AQI
5th July 2025
52AQI
52AQI
6th July 2025
69AQI
69AQI
7th July 2025
76AQI
76AQI
8th July 2025
78AQI
78AQI
9th July 2025
72AQI
72AQI
10th July 2025
56AQI
56AQI
11th July 2025
48AQI
48AQI
12th July 2025
50AQI
50AQI
13th July 2025
48AQI
48AQI
14th July 2025
40AQI
40AQI
15th July 2025
39AQI
39AQI
16th July 2025
38AQI
38AQI
17th July 2025
41AQI
41AQI
18th July 2025
38AQI
38AQI
19th July 2025
33AQI
33AQI
20th July 2025
32AQI
32AQI
21st July 2025
34AQI
34AQI
22nd July 2025
34AQI
34AQI
23rd July 2025
37AQI
37AQI
24th July 2025
37AQI
37AQI
25th July 2025
33AQI
33AQI
26th July 2025
32AQI
32AQI
27th July 2025
30AQI
30AQI
28th July 2025
36AQI
36AQI
29th July 2025
33AQI
33AQI
30th July 2025
31AQI
31AQI
31st July 2025
30AQI
30AQI
1st August 2025
33AQI
33AQI
2nd August 2025
41AQI
41AQI
3rd August 2025
44AQI
44AQI
4th August 2025
61AQI
61AQI
5th August 2025
50AQI
50AQI
6th August 2025
51AQI
51AQI
7th August 2025
50AQI
50AQI
8th August 2025
47AQI
47AQI
9th August 2025
48AQI
48AQI
10th August 2025
39AQI
39AQI
11th August 2025
39AQI
39AQI
12th August 2025
36AQI
36AQI
13th August 2025
33AQI
33AQI
14th August 2025
34AQI
34AQI
15th August 2025
35AQI
35AQI
16th August 2025
36AQI
36AQI
17th August 2025
39AQI
39AQI
18th August 2025
43AQI
43AQI
19th August 2025
45AQI
45AQI
20th August 2025
47AQI
47AQI
21st August 2025
50AQI
50AQI
22nd August 2025
49AQI
49AQI
23rd August 2025
48AQI
48AQI
24th August 2025
55AQI
55AQI
25th August 2025
55AQI
55AQI
26th August 2025
53AQI
53AQI
27th August 2025
50AQI
50AQI
28th August 2025
45AQI
45AQI
29th August 2025
51AQI
51AQI
30th August 2025
55AQI
55AQI
31st August 2025
53AQI
53AQI
1st September 2025
42AQI
42AQI
2nd September 2025
37AQI
37AQI
3rd September 2025
37AQI
37AQI
4th September 2025
30AQI
30AQI
5th September 2025
28AQI
28AQI
6th September 2025
29AQI
29AQI
7th September 2025
29AQI
29AQI
8th September 2025
39AQI
39AQI
9th September 2025
42AQI
42AQI
10th September 2025
36AQI
36AQI
11th September 2025
31AQI
31AQI
12th September 2025
31AQI
31AQI
13th September 2025
28AQI
28AQI
14th September 2025
36AQI
36AQI
15th September 2025
35AQI
35AQI
16th September 2025
36AQI
36AQI
17th September 2025
48AQI
48AQI
18th September 2025
45AQI
45AQI
19th September 2025
34AQI
34AQI
20th September 2025
35AQI
35AQI
21st September 2025
30AQI
30AQI
22nd September 2025
29AQI
29AQI
23rd September 2025
27AQI
27AQI
24th September 2025
27AQI
27AQI
25th September 2025
33AQI
33AQI
26th September 2025
45AQI
45AQI
27th September 2025
32AQI
32AQI
28th September 2025
30AQI
30AQI
29th September 2025
37AQI
37AQI
30th September 2025
35AQI
35AQI
1st October 2025
41AQI
41AQI
2nd October 2025
48AQI
48AQI
3rd October 2025
54AQI
54AQI
4th October 2025
60AQI
60AQI
5th October 2025
57AQI
57AQI
6th October 2025
53AQI
53AQI
7th October 2025
54AQI
54AQI
8th October 2025
60AQI
60AQI
9th October 2025
58AQI
58AQI
10th October 2025
58AQI
58AQI
11th October 2025
51AQI
51AQI
12th October 2025
49AQI
49AQI
13th October 2025
56AQI
56AQI
14th October 2025
55AQI
55AQI
15th October 2025
47AQI
47AQI
16th October 2025
60AQI
60AQI
17th October 2025
53AQI
53AQI
18th October 2025
58AQI
58AQI
19th October 2025
54AQI
54AQI
20th October 2025
48AQI
48AQI
21st October 2025
29AQI
29AQI
22nd October 2025
32AQI
32AQI
23rd October 2025
38AQI
38AQI
24th October 2025
39AQI
39AQI
25th October 2025
40AQI
40AQI
26th October 2025
35AQI
35AQI
27th October 2025
35AQI
35AQI
28th October 2025
45AQI
45AQI
29th October 2025
43AQI
43AQI
30th October 2025
58AQI
58AQI
31st October 2025
60AQI
60AQI
1st November 2025
20AQI
20AQI
2nd November 2025
32AQI
32AQI
3rd November 2025
42AQI
42AQI
4th November 2025
33AQI
33AQI
5th November 2025
48AQI
48AQI
6th November 2025
52AQI
52AQI
7th November 2025
50AQI
50AQI
8th November 2025
51AQI
51AQI
9th November 2025
46AQI
46AQI
10th November 2025
39AQI
39AQI
11th November 2025
29AQI
29AQI
12th November 2025
42AQI
42AQI
13th November 2025
65AQI
65AQI
14th November 2025
71AQI
71AQI
15th November 2025
49AQI
49AQI
16th November 2025
55AQI
55AQI
17th November 2025
59AQI
59AQI
18th November 2025
38AQI
38AQI
19th November 2025
33AQI
33AQI
20th November 2025
57AQI
57AQI
21st November 2025
61AQI
61AQI
22nd November 2025
45AQI
45AQI
23rd November 2025
45AQI
45AQI
24th November 2025
60AQI
60AQI
25th November 2025
67AQI
67AQI
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
37AQI
36AQI
41AQI
36AQI
32AQI
34AQI
43AQI
46AQI
34AQI
49AQI
48AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202540AQI
28
3
27
1
25
6
28
2
30
1
29
1
25
6
23
8
30
14
17
15
10
274
55
Highest AQI recorded in
October49AQI
Lowest AQI recorded in
May32AQI
202438AQI
23
8
25
4
25
6
23
7
28
3
28
2
17
14
30
1
25
5
29
2
27
3
30
1
310
56
Highest AQI recorded in
July49AQI
Lowest AQI recorded in
August30AQI
202339AQI
22
9
19
9
27
4
22
8
29
2
23
7
25
6
30
1
30
30
1
21
8
23
8
301
63
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
August27AQI
202239AQI
25
6
13
8
22
9
13
4
26
5
27
3
19
2
1
28
28
3
23
7
24
7
249
54
Highest AQI recorded in
March45AQI
Lowest AQI recorded in
August25AQI
202138AQI
20
11
22
6
25
6
29
1
25
6
27
3
28
3
27
4
30
28
3
23
7
17
14
301
64
Highest AQI recorded in
December47AQI
Lowest AQI recorded in
July32AQI
202038AQI
11
2
19
2
18
22
8
31
20
11
18
1
28
3
18
12
17
14
202
53
Highest AQI recorded in
December47AQI
Lowest AQI recorded in
September29AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
40AQILeast Polluted Year Recorded
2021(Avg.)
38AQIYachiyo's annual 2025 AQI (40) shows an average percentage change of 2.7% (worsened AQI) compared to previous years: 2020 (38), 2021 (38), 2022 (39), 2023 (39), 2024 (38).
