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
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
61AQILowest AQI recorded on
21st Aug 2023
11AQISame Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 24 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Shikawatashi, Yotsukaido, Chiba, Japan
AQI
Day
Night
.
4 AM14th Aug 2026
6 PM
3 AM15th Aug 2026
Day time
Avg. Highest Time
5PM14th Aug
31AQI
Avg. Lowest Time
12PM14th Aug
21AQI
Night time
Avg. Highest Time
12AM15th Aug
29AQI
Avg. Lowest Time
7PM14th Aug
19AQI
In the last 24 hours,
Shikawatashi's AQI reached its highest point of 31 at 5 PM during the Day, while the lowest point, 19, was recorded at 7 PM during the Night between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Shikawatashi, Yotsukaido, Chiba, Japan
JulAug
17th - 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 - 12th12th - 13th13th - 14th14th - 15th15th
Day
Night
17th Jul 2026544 AMAQI
17th Jul 2026565 AMAQI
17th Jul 2026586 AMAQI
17th Jul 2026607 AMAQI
17th Jul 2026598 AMAQI
17th Jul 2026609 AMAQI
17th Jul 20266010 AMAQI
17th Jul 20266211 AMAQI
17th Jul 20265512 PMAQI
17th Jul 2026421 PMAQI
17th Jul 2026482 PMAQI
17th Jul 2026463 PMAQI
17th Jul 2026484 PMAQI
17th Jul 2026525 PMAQI
17th Jul 2026546 PMAQI
17th Jul 2026477 PMAQI
17th Jul 2026408 PMAQI
17th Jul 2026349 PMAQI
17th Jul 20262710 PMAQI
17th Jul 20262511 PMAQI
18th Jul 20262312 AMAQI
18th Jul 2026191 AMAQI
18th Jul 2026192 AMAQI
18th Jul 2026123 AMAQI
28°C25/30°C
18th Jul 2026104 AMAQI
18th Jul 2026125 AMAQI
18th Jul 202686 AMAQI
18th Jul 2026107 AMAQI
18th Jul 202688 AMAQI
18th Jul 2026109 AMAQI
18th Jul 2026810 AMAQI
18th Jul 2026811 AMAQI
18th Jul 2026812 PMAQI
18th Jul 2026211 PMAQI
18th Jul 202682 PMAQI
18th Jul 202683 PMAQI
18th Jul 202684 PMAQI
18th Jul 202685 PMAQI
18th Jul 202686 PMAQI
18th Jul 202687 PMAQI
18th Jul 2026128 PMAQI
18th Jul 2026239 PMAQI
18th Jul 20262510 PMAQI
18th Jul 20262711 PMAQI
19th Jul 20262312 AMAQI
19th Jul 2026251 AMAQI
19th Jul 2026272 AMAQI
19th Jul 2026233 AMAQI
27°C24/29°C
19th Jul 2026254 AMAQI
19th Jul 2026235 AMAQI
19th Jul 2026236 AMAQI
19th Jul 2026277 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026259 AMAQI
19th Jul 20262510 AMAQI
19th Jul 20262911 AMAQI
19th Jul 20262712 PMAQI
19th Jul 2026271 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026214 PMAQI
19th Jul 2026255 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026277 PMAQI
19th Jul 2026258 PMAQI
19th Jul 2026259 PMAQI
19th Jul 20262510 PMAQI
19th Jul 20262711 PMAQI
20th Jul 20262112 AMAQI
20th Jul 2026211 AMAQI
20th Jul 2026232 AMAQI
20th Jul 2026253 AMAQI
27°C24/29°C
20th Jul 2026234 AMAQI
20th Jul 2026235 AMAQI
20th Jul 2026296 AMAQI
20th Jul 2026297 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262510 AMAQI
20th Jul 20262911 AMAQI
20th Jul 20262112 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026292 PMAQI
20th Jul 2026483 PMAQI
20th Jul 2026644 PMAQI
20th Jul 2026665 PMAQI
20th Jul 2026466 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026408 PMAQI
20th Jul 2026469 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20263311 PMAQI
21st Jul 20263112 AMAQI
21st Jul 2026341 AMAQI
21st Jul 2026342 AMAQI
21st Jul 2026293 AMAQI
29°C25/34°C
21st Jul 2026314 AMAQI
21st Jul 2026295 AMAQI
21st Jul 2026276 AMAQI
21st Jul 2026297 AMAQI
21st Jul 2026348 AMAQI
21st Jul 2026369 AMAQI
21st Jul 20264610 AMAQI
21st Jul 20265311 AMAQI
21st Jul 2026561 PMAQI
21st Jul 2026542 PMAQI
21st Jul 2026723 PMAQI
21st Jul 2026754 PMAQI
21st Jul 2026785 PMAQI
21st Jul 2026646 PMAQI
21st Jul 2026907 PMAQI
21st Jul 2026538 PMAQI
21st Jul 2026539 PMAQI
21st Jul 20265410 PMAQI
21st Jul 20265411 PMAQI
22nd Jul 20265312 AMAQI
22nd Jul 2026561 AMAQI
22nd Jul 2026602 AMAQI
22nd Jul 2026583 AMAQI
30°C26/35°C
22nd Jul 2026624 AMAQI
22nd Jul 2026605 AMAQI
22nd Jul 2026626 AMAQI
22nd Jul 2026627 AMAQI
22nd Jul 2026588 AMAQI
22nd Jul 2026559 AMAQI
22nd Jul 20265610 AMAQI
22nd Jul 20266011 AMAQI
22nd Jul 20267212 PMAQI
22nd Jul 2026821 PMAQI
22nd Jul 2026802 PMAQI
22nd Jul 2026863 PMAQI
22nd Jul 2026784 PMAQI
22nd Jul 2026715 PMAQI
22nd Jul 2026726 PMAQI
22nd Jul 2026767 PMAQI
22nd Jul 2026698 PMAQI
22nd Jul 2026789 PMAQI
22nd Jul 20267110 PMAQI
22nd Jul 20268511 PMAQI
23rd Jul 20268612 AMAQI
23rd Jul 2026811 AMAQI
23rd Jul 2026662 AMAQI
23rd Jul 2026703 AMAQI
30°C26/34°C
23rd Jul 2026654 AMAQI
23rd Jul 2026605 AMAQI
23rd Jul 2026626 AMAQI
23rd Jul 2026597 AMAQI
23rd Jul 2026568 AMAQI
23rd Jul 2026599 AMAQI
23rd Jul 20266910 AMAQI
23rd Jul 20267411 AMAQI
23rd Jul 20267212 PMAQI
23rd Jul 2026781 PMAQI
23rd Jul 2026722 PMAQI
23rd Jul 2026693 PMAQI
23rd Jul 2026644 PMAQI
23rd Jul 2026625 PMAQI
23rd Jul 2026556 PMAQI
23rd Jul 2026517 PMAQI
23rd Jul 2026278 PMAQI
23rd Jul 2026299 PMAQI
23rd Jul 20262710 PMAQI
23rd Jul 20261911 PMAQI
24th Jul 20264412 AMAQI
24th Jul 2026251 AMAQI
24th Jul 2026212 AMAQI
24th Jul 2026253 AMAQI
30°C27/35°C
24th Jul 2026194 AMAQI
24th Jul 2026235 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026347 AMAQI
24th Jul 2026428 AMAQI
24th Jul 2026299 AMAQI
24th Jul 20261710 AMAQI
24th Jul 20261911 AMAQI
24th Jul 20263312 PMAQI
24th Jul 2026271 PMAQI
24th Jul 2026362 PMAQI
24th Jul 2026323 PMAQI
24th Jul 2026304 PMAQI
24th Jul 2026325 PMAQI
24th Jul 2026386 PMAQI
24th Jul 2026297 PMAQI
24th Jul 2026188 PMAQI
24th Jul 2026169 PMAQI
24th Jul 20261910 PMAQI
24th Jul 20261911 PMAQI
25th Jul 20262112 AMAQI
25th Jul 2026231 AMAQI
25th Jul 2026252 AMAQI
25th Jul 2026213 AMAQI
28°C26/32°C
25th Jul 2026234 AMAQI
25th Jul 2026295 AMAQI
25th Jul 2026286 AMAQI
25th Jul 2026307 AMAQI
25th Jul 2026338 AMAQI
25th Jul 2026409 AMAQI
25th Jul 20264010 AMAQI
25th Jul 20264211 AMAQI
25th Jul 20265012 PMAQI
25th Jul 2026521 PMAQI
25th Jul 2026462 PMAQI
25th Jul 2026463 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026405 PMAQI
25th Jul 2026316 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026308 PMAQI
25th Jul 2026219 PMAQI
25th Jul 20262110 PMAQI
25th Jul 20262311 PMAQI
26th Jul 20262512 AMAQI
26th Jul 2026321 AMAQI
26th Jul 2026462 AMAQI
26th Jul 2026403 AMAQI
27°C23/32°C
26th Jul 2026404 AMAQI
26th Jul 2026425 AMAQI
26th Jul 2026426 AMAQI
26th Jul 2026337 AMAQI
26th Jul 2026338 AMAQI
26th Jul 2026339 AMAQI
26th Jul 20262710 AMAQI
26th Jul 20262711 AMAQI
26th Jul 20262912 PMAQI
26th Jul 2026381 PMAQI
26th Jul 2026462 PMAQI
26th Jul 2026523 PMAQI
26th Jul 2026404 PMAQI
26th Jul 2026335 PMAQI
26th Jul 2026366 PMAQI
26th Jul 2026317 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026339 PMAQI
26th Jul 20263110 PMAQI
26th Jul 20262711 PMAQI
27th Jul 20262712 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026212 AMAQI
27th Jul 2026253 AMAQI
27°C24/30°C
27th Jul 2026234 AMAQI
27th Jul 2026235 AMAQI
27th Jul 2026236 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026388 AMAQI
27th Jul 2026299 AMAQI
27th Jul 20263610 AMAQI
27th Jul 20262911 AMAQI
27th Jul 20262112 PMAQI
27th Jul 2026211 PMAQI
27th Jul 2026232 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026214 PMAQI
27th Jul 2026215 PMAQI
27th Jul 2026386 PMAQI
27th Jul 2026307 PMAQI
27th Jul 2026338 PMAQI
27th Jul 2026279 PMAQI
27th Jul 20262110 PMAQI
27th Jul 20262111 PMAQI
28th Jul 20262112 AMAQI
28th Jul 2026211 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026253 AMAQI
26°C23/29°C
28th Jul 2026234 AMAQI
28th Jul 2026255 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026258 AMAQI
28th Jul 2026239 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20262311 AMAQI
28th Jul 20262512 PMAQI
28th Jul 2026251 PMAQI
28th Jul 2026272 PMAQI
28th Jul 2026253 PMAQI
28th Jul 2026294 PMAQI
28th Jul 2026275 PMAQI
28th Jul 2026276 PMAQI
28th Jul 2026257 PMAQI
28th Jul 2026258 PMAQI
28th Jul 2026279 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20264412 AMAQI
29th Jul 2026461 AMAQI
29th Jul 2026442 AMAQI
29th Jul 2026363 AMAQI
26°C23/29°C
29th Jul 2026514 AMAQI
29th Jul 2026525 AMAQI
29th Jul 2026526 AMAQI
29th Jul 2026487 AMAQI
29th Jul 2026428 AMAQI
29th Jul 2026449 AMAQI
29th Jul 20264010 AMAQI
29th Jul 20262511 AMAQI
29th Jul 20262712 PMAQI
29th Jul 2026251 PMAQI
29th Jul 2026232 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026274 PMAQI
29th Jul 2026255 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026217 PMAQI
29th Jul 2026218 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262310 PMAQI
29th Jul 20262911 PMAQI
30th Jul 20263112 AMAQI
30th Jul 2026291 AMAQI
30th Jul 2026292 AMAQI
30th Jul 2026273 AMAQI
28°C24/33°C
30th Jul 2026294 AMAQI
30th Jul 2026275 AMAQI
30th Jul 2026276 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026238 AMAQI
30th Jul 2026219 AMAQI
30th Jul 20262710 AMAQI
30th Jul 20262911 AMAQI
30th Jul 20263612 PMAQI
30th Jul 2026401 PMAQI
30th Jul 2026462 PMAQI
30th Jul 2026543 PMAQI
30th Jul 2026534 PMAQI
30th Jul 2026545 PMAQI
30th Jul 2026566 PMAQI
30th Jul 2026547 PMAQI
30th Jul 2026488 PMAQI
30th Jul 2026469 PMAQI
30th Jul 20265010 PMAQI
30th Jul 20265711 PMAQI
31st Jul 20265312 AMAQI
31st Jul 2026501 AMAQI
31st Jul 2026382 AMAQI
31st Jul 2026313 AMAQI
30°C26/34°C
31st Jul 2026364 AMAQI
31st Jul 2026405 AMAQI
31st Jul 2026406 AMAQI
31st Jul 2026427 AMAQI
31st Jul 2026388 AMAQI
31st Jul 2026449 AMAQI
31st Jul 20264410 AMAQI
31st Jul 20264811 AMAQI
31st Jul 20265412 PMAQI
31st Jul 2026561 PMAQI
31st Jul 2026502 PMAQI
31st Jul 2026443 PMAQI
31st Jul 2026424 PMAQI
31st Jul 2026465 PMAQI
31st Jul 2026506 PMAQI
31st Jul 2026517 PMAQI
31st Jul 2026408 PMAQI
31st Jul 2026469 PMAQI
31st Jul 20264410 PMAQI
31st Jul 20264611 PMAQI
1st Aug 20264412 AMAQI
1st Aug 2026441 AMAQI
1st Aug 2026482 AMAQI
1st Aug 2026533 AMAQI
29°C27/34°C
1st Aug 2026544 AMAQI
1st Aug 2026535 AMAQI
1st Aug 2026546 AMAQI
1st Aug 2026537 AMAQI
1st Aug 2026528 AMAQI
1st Aug 2026609 AMAQI
1st Aug 20266710 AMAQI
1st Aug 20266611 AMAQI
1st Aug 20266212 PMAQI
1st Aug 2026661 PMAQI
1st Aug 2026662 PMAQI
1st Aug 2026653 PMAQI
1st Aug 2026634 PMAQI
1st Aug 2026605 PMAQI
1st Aug 2026696 PMAQI
1st Aug 2026697 PMAQI
1st Aug 2026738 PMAQI
1st Aug 2026699 PMAQI
1st Aug 20266910 PMAQI
1st Aug 20266611 PMAQI
2nd Aug 20266912 AMAQI
2nd Aug 2026661 AMAQI
2nd Aug 2026662 AMAQI
2nd Aug 2026673 AMAQI
30°C26/34°C
2nd Aug 2026664 AMAQI
2nd Aug 2026675 AMAQI
2nd Aug 2026686 AMAQI
2nd Aug 2026657 AMAQI
2nd Aug 2026688 AMAQI
2nd Aug 2026699 AMAQI
2nd Aug 20267210 AMAQI
2nd Aug 20266611 AMAQI
2nd Aug 20266512 PMAQI
2nd Aug 2026601 PMAQI
2nd Aug 2026522 PMAQI
2nd Aug 2026483 PMAQI
2nd Aug 2026404 PMAQI
2nd Aug 2026385 PMAQI
2nd Aug 2026316 PMAQI
2nd Aug 2026277 PMAQI
2nd Aug 2026278 PMAQI
2nd Aug 2026109 PMAQI
2nd Aug 20261010 PMAQI
2nd Aug 2026811 PMAQI
3rd Aug 20261112 AMAQI
3rd Aug 2026101 AMAQI
3rd Aug 202682 AMAQI
3rd Aug 202683 AMAQI
28°C24/33°C
3rd Aug 202684 AMAQI
3rd Aug 2026125 AMAQI
3rd Aug 2026106 AMAQI
3rd Aug 2026127 AMAQI
3rd Aug 2026148 AMAQI
3rd Aug 2026159 AMAQI
3rd Aug 20261410 AMAQI
3rd Aug 20261711 AMAQI
3rd Aug 20261112 PMAQI
3rd Aug 2026211 PMAQI
3rd Aug 2026222 PMAQI
3rd Aug 2026293 PMAQI
3rd Aug 2026234 PMAQI
3rd Aug 2026275 PMAQI
3rd Aug 2026276 PMAQI
3rd Aug 2026277 PMAQI
3rd Aug 2026258 PMAQI
3rd Aug 2026219 PMAQI
3rd Aug 20262310 PMAQI
3rd Aug 20262311 PMAQI
4th Aug 20261812 AMAQI
4th Aug 2026211 AMAQI
4th Aug 2026212 AMAQI
4th Aug 2026213 AMAQI
24°C23/27°C
4th Aug 2026214 AMAQI
4th Aug 2026205 AMAQI
4th Aug 2026206 AMAQI
4th Aug 2026217 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262510 AMAQI
4th Aug 20262511 AMAQI
4th Aug 20262912 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026252 PMAQI
4th Aug 2026213 PMAQI
4th Aug 2026234 PMAQI
4th Aug 2026215 PMAQI
4th Aug 2026216 PMAQI
4th Aug 2026257 PMAQI
4th Aug 2026238 PMAQI
4th Aug 2026239 PMAQI
4th Aug 20262310 PMAQI
4th Aug 20262111 PMAQI
5th Aug 20262312 AMAQI
5th Aug 2026211 AMAQI
5th Aug 2026212 AMAQI
5th Aug 2026233 AMAQI
24°C22/27°C
5th Aug 2026214 AMAQI
5th Aug 2026215 AMAQI
5th Aug 2026216 AMAQI
5th Aug 2026217 AMAQI
5th Aug 2026218 AMAQI
5th Aug 2026239 AMAQI
5th Aug 20262110 AMAQI
5th Aug 20262111 AMAQI
5th Aug 20262312 PMAQI
5th Aug 2026211 PMAQI
5th Aug 2026212 PMAQI
5th Aug 2026213 PMAQI
5th Aug 2026214 PMAQI
5th Aug 2026235 PMAQI
5th Aug 2026236 PMAQI
5th Aug 2026237 PMAQI
5th Aug 2026218 PMAQI
5th Aug 2026219 PMAQI
5th Aug 20262110 PMAQI
5th Aug 20262311 PMAQI
6th Aug 20262512 AMAQI
6th Aug 2026211 AMAQI
6th Aug 2026252 AMAQI
6th Aug 2026233 AMAQI
25°C22/29°C
6th Aug 2026254 AMAQI
6th Aug 2026255 AMAQI
6th Aug 2026256 AMAQI
6th Aug 2026257 AMAQI
6th Aug 2026258 AMAQI
6th Aug 2026259 AMAQI
6th Aug 20262510 AMAQI
6th Aug 20262511 AMAQI
6th Aug 20262712 PMAQI
6th Aug 2026251 PMAQI
6th Aug 2026292 PMAQI
6th Aug 2026313 PMAQI
6th Aug 2026314 PMAQI
6th Aug 2026295 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026257 PMAQI
6th Aug 2026258 PMAQI
6th Aug 2026259 PMAQI
6th Aug 20262310 PMAQI
6th Aug 20262111 PMAQI
7th Aug 20262312 AMAQI
7th Aug 2026251 AMAQI
7th Aug 2026252 AMAQI
7th Aug 2026253 AMAQI
28°C24/32°C
7th Aug 2026274 AMAQI
7th Aug 2026275 AMAQI
7th Aug 2026256 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026258 AMAQI
7th Aug 2026259 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20262511 AMAQI
7th Aug 20262712 PMAQI
7th Aug 2026291 PMAQI
7th Aug 2026252 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026255 PMAQI
7th Aug 2026256 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026258 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20262110 PMAQI
7th Aug 20262511 PMAQI
8th Aug 20262312 AMAQI
8th Aug 2026251 AMAQI
8th Aug 2026252 AMAQI
8th Aug 2026273 AMAQI
28°C25/32°C
8th Aug 2026234 AMAQI
8th Aug 2026215 AMAQI
8th Aug 2026236 AMAQI
8th Aug 2026257 AMAQI
8th Aug 2026258 AMAQI
8th Aug 2026259 AMAQI
8th Aug 20262710 AMAQI
8th Aug 20263111 AMAQI
8th Aug 20262712 PMAQI
8th Aug 2026341 PMAQI
8th Aug 2026212 PMAQI
8th Aug 2026253 PMAQI
8th Aug 2026294 PMAQI
8th Aug 2026215 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026238 PMAQI
8th Aug 2026279 PMAQI
8th Aug 20262110 PMAQI
8th Aug 20262511 PMAQI
9th Aug 20262312 AMAQI
9th Aug 2026251 AMAQI
9th Aug 2026252 AMAQI
9th Aug 2026253 AMAQI
28°C24/32°C
9th Aug 2026254 AMAQI
9th Aug 2026255 AMAQI
9th Aug 2026216 AMAQI
9th Aug 2026237 AMAQI
9th Aug 2026298 AMAQI
9th Aug 2026259 AMAQI
9th Aug 20262910 AMAQI
9th Aug 20262911 AMAQI
9th Aug 20262912 PMAQI
9th Aug 2026291 PMAQI
9th Aug 2026252 PMAQI
9th Aug 2026273 PMAQI
9th Aug 2026294 PMAQI
9th Aug 2026255 PMAQI
9th Aug 2026296 PMAQI
9th Aug 2026297 PMAQI
9th Aug 2026528 PMAQI
9th Aug 2026279 PMAQI
9th Aug 20262310 PMAQI
9th Aug 20262511 PMAQI
10th Aug 20262112 AMAQI
10th Aug 2026251 AMAQI
10th Aug 2026252 AMAQI
10th Aug 2026233 AMAQI
28°C24/32°C
10th Aug 2026254 AMAQI
10th Aug 2026255 AMAQI
10th Aug 2026236 AMAQI
10th Aug 2026237 AMAQI
10th Aug 2026218 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20262510 AMAQI
10th Aug 20262511 AMAQI
10th Aug 20262512 PMAQI
10th Aug 2026251 PMAQI
10th Aug 2026232 PMAQI
10th Aug 2026233 PMAQI
10th Aug 2026214 PMAQI
10th Aug 2026215 PMAQI
10th Aug 2026336 PMAQI
10th Aug 2026237 PMAQI
10th Aug 2026368 PMAQI
10th Aug 2026259 PMAQI
10th Aug 20262510 PMAQI
10th Aug 20262311 PMAQI
11th Aug 20262512 AMAQI
11th Aug 2026231 AMAQI
11th Aug 2026252 AMAQI
11th Aug 2026233 AMAQI
26°C23/30°C
11th Aug 2026234 AMAQI
11th Aug 2026275 AMAQI
11th Aug 2026276 AMAQI
11th Aug 2026297 AMAQI
11th Aug 2026428 AMAQI
11th Aug 2026389 AMAQI
11th Aug 20263310 AMAQI
11th Aug 20262711 AMAQI
11th Aug 20262312 PMAQI
11th Aug 2026251 PMAQI
11th Aug 2026252 PMAQI
11th Aug 2026253 PMAQI
11th Aug 2026254 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026296 PMAQI
11th Aug 2026217 PMAQI
11th Aug 2026298 PMAQI
11th Aug 2026279 PMAQI
11th Aug 20262910 PMAQI
11th Aug 20262911 PMAQI
12th Aug 20262512 AMAQI
12th Aug 2026211 AMAQI
12th Aug 2026212 AMAQI
12th Aug 2026253 AMAQI
23°C19/27°C
12th Aug 2026254 AMAQI
12th Aug 2026275 AMAQI
12th Aug 2026216 AMAQI
12th Aug 2026257 AMAQI
12th Aug 2026238 AMAQI
12th Aug 2026239 AMAQI
12th Aug 20262310 AMAQI
12th Aug 20262311 AMAQI
12th Aug 20262512 PMAQI
12th Aug 2026211 PMAQI
12th Aug 2026212 PMAQI
12th Aug 2026253 PMAQI
12th Aug 2026254 PMAQI
12th Aug 2026255 PMAQI
12th Aug 2026256 PMAQI
12th Aug 2026257 PMAQI
12th Aug 2026238 PMAQI
12th Aug 2026259 PMAQI
12th Aug 20262210 PMAQI
12th Aug 20262711 PMAQI
13th Aug 20262512 AMAQI
13th Aug 2026211 AMAQI
13th Aug 2026212 AMAQI
13th Aug 2026223 AMAQI
23°C21/25°C
13th Aug 2026244 AMAQI
13th Aug 2026235 AMAQI
13th Aug 2026236 AMAQI
13th Aug 2026257 AMAQI
13th Aug 2026278 AMAQI
13th Aug 2026279 AMAQI
13th Aug 20262310 AMAQI
13th Aug 20262511 AMAQI
13th Aug 20262712 PMAQI
13th Aug 2026271 PMAQI
13th Aug 2026232 PMAQI
13th Aug 2026213 PMAQI
13th Aug 2026254 PMAQI
13th Aug 2026255 PMAQI
13th Aug 2026296 PMAQI
13th Aug 2026297 PMAQI
13th Aug 2026298 PMAQI
13th Aug 2026299 PMAQI
13th Aug 20263810 PMAQI
13th Aug 20262511 PMAQI
14th Aug 20262912 AMAQI
14th Aug 2026251 AMAQI
14th Aug 2026252 AMAQI
14th Aug 2026253 AMAQI
26°C23/30°C
14th Aug 2026274 AMAQI
14th Aug 2026255 AMAQI
14th Aug 2026256 AMAQI
14th Aug 2026257 AMAQI
14th Aug 2026298 AMAQI
14th Aug 2026259 AMAQI
14th Aug 20262510 AMAQI
14th Aug 20262111 AMAQI
14th Aug 20262112 PMAQI
14th Aug 2026231 PMAQI
14th Aug 2026252 PMAQI
14th Aug 2026233 PMAQI
14th Aug 2026254 PMAQI
14th Aug 2026315 PMAQI
14th Aug 2026256 PMAQI
14th Aug 2026197 PMAQI
14th Aug 2026258 PMAQI
14th Aug 2026219 PMAQI
14th Aug 20262510 PMAQI
14th Aug 20262511 PMAQI
15th Aug 20262912 AMAQI
15th Aug 2026251 AMAQI
15th Aug 2026212 AMAQI
15th Aug 2026213 AMAQI
26°C24/28°C
15th Aug 2026274 AMAQI
4 AM15th Aug 2026255 AMAQI
15th Aug 2026296 AMAQI
15th Aug 2026217 AMAQI
15th Aug 2026238 AMAQI
15th Aug 2026259 AMAQI
15th Aug 20262510 AMAQI
15th Aug 20262511 AMAQI
11 AM15th Aug 20262512 PMAQI
15th Aug 2026251 PMAQI
15th Aug 2026232 PMAQI
15th Aug 2026213 PMAQI
15th Aug 2026214 PMAQI
15th Aug 2026215 PMAQI
15th Aug 2026236 PMAQI
6 PM15th Aug 2026257 PMAQI
15th Aug 2026298 PMAQI
15th Aug 2026259 PMAQI
15th Aug 20262510 PMAQI
15th Aug 20262511 PMAQI
11 PM3 AM
26°C24/30°C
Day time
Avg. Highest Time
1 PM - 6 PM
36AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
4 AM
31AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 6 PM (Avg. 36), while the lowest AQI was between 4 AM to 4 AM (Avg. 31).
Night time
Avg. Highest Time
7 PM - 8 PM
34AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
3 AM
30AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 8 PM (Avg. 34), while the lowest AQI was between 3 AM to 3 AM (Avg. 30).
2026 Days Vs Air Quality
Shikawatashi, Yotsukaido, Chiba, Japan
2026
86%
195
14%
32
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Good
195 DaysModerate
32 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2026, 86% of 227 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 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
14AQI (US)
14AQI (US)
2nd January 2026
19AQI (US)
19AQI (US)
3rd January 2026
20AQI (US)
20AQI (US)
4th January 2026
24AQI (US)
24AQI (US)
5th January 2026
50AQI (US)
50AQI (US)
6th January 2026
25AQI (US)
25AQI (US)
7th January 2026
37AQI (US)
37AQI (US)
8th January 2026
38AQI (US)
38AQI (US)
9th January 2026
20AQI (US)
20AQI (US)
10th January 2026
42AQI (US)
42AQI (US)
11th January 2026
41AQI (US)
41AQI (US)
12th January 2026
24AQI (US)
24AQI (US)
13th January 2026
47AQI (US)
47AQI (US)
14th January 2026
17AQI (US)
17AQI (US)
15th January 2026
38AQI (US)
38AQI (US)
16th January 2026
46AQI (US)
46AQI (US)
17th January 2026
52AQI (US)
52AQI (US)
18th January 2026
37AQI (US)
37AQI (US)
19th January 2026
37AQI (US)
37AQI (US)
20th January 2026
42AQI (US)
42AQI (US)
21st January 2026
13AQI (US)
13AQI (US)
22nd January 2026
28AQI (US)
28AQI (US)
23rd January 2026
40AQI (US)
40AQI (US)
24th January 2026
40AQI (US)
40AQI (US)
25th January 2026
19AQI (US)
19AQI (US)
26th January 2026
20AQI (US)
20AQI (US)
27th January 2026
44AQI (US)
44AQI (US)
28th January 2026
32AQI (US)
32AQI (US)
29th January 2026
21AQI (US)
21AQI (US)
30th January 2026
34AQI (US)
34AQI (US)
31st January 2026
40AQI (US)
40AQI (US)
1st February 2026
42AQI (US)
42AQI (US)
2nd February 2026
37AQI (US)
37AQI (US)
3rd February 2026
17AQI (US)
17AQI (US)
4th February 2026
41AQI (US)
41AQI (US)
5th February 2026
68AQI (US)
68AQI (US)
6th February 2026
68AQI (US)
68AQI (US)
7th February 2026
16AQI (US)
16AQI (US)
8th February 2026
10AQI (US)
10AQI (US)
9th February 2026
33AQI (US)
33AQI (US)
10th February 2026
39AQI (US)
39AQI (US)
11th February 2026
63AQI (US)
63AQI (US)
12th February 2026
38AQI (US)
38AQI (US)
13th February 2026
43AQI (US)
43AQI (US)
14th February 2026
56AQI (US)
56AQI (US)
15th February 2026
55AQI (US)
55AQI (US)
16th February 2026
51AQI (US)
51AQI (US)
17th February 2026
15AQI (US)
15AQI (US)
18th February 2026
34AQI (US)
34AQI (US)
19th February 2026
13AQI (US)
13AQI (US)
20th February 2026
22AQI (US)
22AQI (US)
21st February 2026
42AQI (US)
42AQI (US)
22nd February 2026
42AQI (US)
42AQI (US)
23rd February 2026
31AQI (US)
31AQI (US)
24th February 2026
37AQI (US)
37AQI (US)
25th February 2026
16AQI (US)
16AQI (US)
26th February 2026
16AQI (US)
16AQI (US)
27th February 2026
43AQI (US)
43AQI (US)
28th February 2026
43AQI (US)
43AQI (US)
1st March 2026
35AQI (US)
35AQI (US)
2nd March 2026
71AQI (US)
71AQI (US)
3rd March 2026
43AQI (US)
43AQI (US)
4th March 2026
55AQI (US)
55AQI (US)
5th March 2026
54AQI (US)
54AQI (US)
6th March 2026
50AQI (US)
50AQI (US)
7th March 2026
46AQI (US)
46AQI (US)
8th March 2026
41AQI (US)
41AQI (US)
9th March 2026
49AQI (US)
49AQI (US)
10th March 2026
58AQI (US)
58AQI (US)
11th March 2026
58AQI (US)
58AQI (US)
12th March 2026
66AQI (US)
66AQI (US)
13th March 2026
40AQI (US)
40AQI (US)
14th March 2026
45AQI (US)
45AQI (US)
15th March 2026
56AQI (US)
56AQI (US)
16th March 2026
44AQI (US)
44AQI (US)
17th March 2026
30AQI (US)
30AQI (US)
18th March 2026
31AQI (US)
31AQI (US)
19th March 2026
41AQI (US)
41AQI (US)
20th March 2026
34AQI (US)
34AQI (US)
21st March 2026
42AQI (US)
42AQI (US)
22nd March 2026
51AQI (US)
51AQI (US)
23rd March 2026
45AQI (US)
45AQI (US)
24th March 2026
41AQI (US)
41AQI (US)
25th March 2026
47AQI (US)
47AQI (US)
26th March 2026
29AQI (US)
29AQI (US)
27th March 2026
29AQI (US)
29AQI (US)
28th March 2026
51AQI (US)
51AQI (US)
29th March 2026
56AQI (US)
56AQI (US)
30th March 2026
53AQI (US)
53AQI (US)
31st March 2026
21AQI (US)
21AQI (US)
1st April 2026
28AQI (US)
28AQI (US)
2nd April 2026
10AQI (US)
10AQI (US)
3rd April 2026
40AQI (US)
40AQI (US)
4th April 2026
45AQI (US)
45AQI (US)
5th April 2026
38AQI (US)
38AQI (US)
6th April 2026
29AQI (US)
29AQI (US)
7th April 2026
26AQI (US)
26AQI (US)
8th April 2026
20AQI (US)
20AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
48AQI (US)
48AQI (US)
11th April 2026
41AQI (US)
41AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
34AQI (US)
34AQI (US)
14th April 2026
38AQI (US)
38AQI (US)
15th April 2026
34AQI (US)
34AQI (US)
16th April 2026
33AQI (US)
33AQI (US)
17th April 2026
36AQI (US)
36AQI (US)
18th April 2026
30AQI (US)
30AQI (US)
19th April 2026
31AQI (US)
31AQI (US)
20th April 2026
35AQI (US)
35AQI (US)
21st April 2026
38AQI (US)
38AQI (US)
22nd April 2026
45AQI (US)
45AQI (US)
23rd April 2026
38AQI (US)
38AQI (US)
24th April 2026
32AQI (US)
32AQI (US)
25th April 2026
44AQI (US)
44AQI (US)
26th April 2026
51AQI (US)
51AQI (US)
27th April 2026
48AQI (US)
48AQI (US)
28th April 2026
43AQI (US)
43AQI (US)
29th April 2026
38AQI (US)
38AQI (US)
30th April 2026
18AQI (US)
18AQI (US)
1st May 2026
43AQI (US)
43AQI (US)
2nd May 2026
48AQI (US)
48AQI (US)
3rd May 2026
44AQI (US)
44AQI (US)
4th May 2026
31AQI (US)
31AQI (US)
5th May 2026
22AQI (US)
22AQI (US)
6th May 2026
28AQI (US)
28AQI (US)
7th May 2026
29AQI (US)
29AQI (US)
8th May 2026
26AQI (US)
26AQI (US)
9th May 2026
22AQI (US)
22AQI (US)
10th May 2026
30AQI (US)
30AQI (US)
11th May 2026
29AQI (US)
29AQI (US)
12th May 2026
32AQI (US)
32AQI (US)
13th May 2026
38AQI (US)
38AQI (US)
14th May 2026
36AQI (US)
36AQI (US)
15th May 2026
34AQI (US)
34AQI (US)
16th May 2026
87AQI (US)
87AQI (US)
17th May 2026
70AQI (US)
70AQI (US)
18th May 2026
54AQI (US)
54AQI (US)
19th May 2026
49AQI (US)
49AQI (US)
20th May 2026
62AQI (US)
62AQI (US)
21st May 2026
60AQI (US)
60AQI (US)
22nd May 2026
60AQI (US)
60AQI (US)
23rd May 2026
53AQI (US)
53AQI (US)
24th May 2026
58AQI (US)
58AQI (US)
25th May 2026
45AQI (US)
45AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
24AQI (US)
24AQI (US)
28th May 2026
26AQI (US)
26AQI (US)
29th May 2026
26AQI (US)
26AQI (US)
30th May 2026
20AQI (US)
20AQI (US)
31st May 2026
26AQI (US)
26AQI (US)
1st June 2026
30AQI (US)
30AQI (US)
2nd June 2026
29AQI (US)
29AQI (US)
3rd June 2026
18AQI (US)
18AQI (US)
4th June 2026
20AQI (US)
20AQI (US)
5th June 2026
22AQI (US)
22AQI (US)
6th June 2026
22AQI (US)
22AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
21AQI (US)
21AQI (US)
9th June 2026
24AQI (US)
24AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
24AQI (US)
24AQI (US)
13th June 2026
41AQI (US)
41AQI (US)
14th June 2026
45AQI (US)
45AQI (US)
15th June 2026
13AQI (US)
13AQI (US)
16th June 2026
18AQI (US)
18AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
25AQI (US)
25AQI (US)
19th June 2026
26AQI (US)
26AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
19AQI (US)
19AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
22AQI (US)
22AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
30AQI (US)
30AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
26AQI (US)
26AQI (US)
30th June 2026
23AQI (US)
23AQI (US)
1st July 2026
31AQI (US)
31AQI (US)
2nd July 2026
20AQI (US)
20AQI (US)
3rd July 2026
16AQI (US)
16AQI (US)
4th July 2026
36AQI (US)
36AQI (US)
5th July 2026
20AQI (US)
20AQI (US)
6th July 2026
25AQI (US)
25AQI (US)
7th July 2026
27AQI (US)
27AQI (US)
8th July 2026
22AQI (US)
22AQI (US)
9th July 2026
23AQI (US)
23AQI (US)
10th July 2026
25AQI (US)
25AQI (US)
11th July 2026
23AQI (US)
23AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
41AQI (US)
41AQI (US)
14th July 2026
33AQI (US)
33AQI (US)
15th July 2026
38AQI (US)
38AQI (US)
16th July 2026
73AQI (US)
73AQI (US)
17th July 2026
50AQI (US)
50AQI (US)
18th July 2026
13AQI (US)
13AQI (US)
19th July 2026
25AQI (US)
25AQI (US)
20th July 2026
34AQI (US)
34AQI (US)
21st July 2026
49AQI (US)
49AQI (US)
22nd July 2026
68AQI (US)
68AQI (US)
23rd July 2026
60AQI (US)
60AQI (US)
24th July 2026
27AQI (US)
27AQI (US)
25th July 2026
32AQI (US)
32AQI (US)
26th July 2026
36AQI (US)
36AQI (US)
27th July 2026
26AQI (US)
26AQI (US)
28th July 2026
25AQI (US)
25AQI (US)
29th July 2026
34AQI (US)
34AQI (US)
30th July 2026
38AQI (US)
38AQI (US)
31st July 2026
45AQI (US)
45AQI (US)
1st August 2026
60AQI (US)
60AQI (US)
2nd August 2026
51AQI (US)
51AQI (US)
3rd August 2026
17AQI (US)
17AQI (US)
4th August 2026
22AQI (US)
22AQI (US)
5th August 2026
22AQI (US)
22AQI (US)
6th August 2026
25AQI (US)
25AQI (US)
7th August 2026
25AQI (US)
25AQI (US)
8th August 2026
25AQI (US)
25AQI (US)
9th August 2026
27AQI (US)
27AQI (US)
10th August 2026
25AQI (US)
25AQI (US)
11th August 2026
27AQI (US)
27AQI (US)
12th August 2026
24AQI (US)
24AQI (US)
13th August 2026
26AQI (US)
26AQI (US)
14th August 2026
25AQI (US)
25AQI (US)
15th August 2026
24AQI (US)
24AQI (US)
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
32AQI (US)
37AQI (US)
46AQI (US)
35AQI (US)
40AQI (US)
24AQI (US)
34AQI (US)
28AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
30
1
22
6
20
11
29
1
23
8
30
28
3
13
2
195
32
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202540AQI (US)
28
3
25
3
26
5
27
3
30
1
29
1
24
7
23
8
30
16
15
16
14
15
16
289
76
Highest AQI (US) recorded in
October49AQI (US)
Lowest AQI (US) recorded in
May32AQI (US)
202437AQI (US)
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 (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
202339AQI (US)
23
7
22
6
28
3
24
6
28
3
22
8
28
3
31
29
1
30
1
20
9
20
11
305
58
Highest AQI (US) recorded in
December48AQI (US)
Lowest AQI (US) recorded in
August25AQI (US)
202239AQI (US)
24
5
16
5
21
10
13
4
26
5
23
7
19
2
1
28
28
3
20
10
24
7
243
58
Highest AQI (US) recorded in
March47AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
202139AQI (US)
17
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
290
72
2
Highest AQI (US) recorded in
January48AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202038AQI (US)
11
2
18
3
18
23
7
29
2
19
12
19
27
4
16
14
19
12
199
56
Highest AQI (US) recorded in
November46AQI (US)
Lowest AQI (US) recorded in
September27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
40AQI (US)Least Polluted Year Recorded
2026(Avg.)
35AQI (US)Shikawatashi's annual 2026 AQI (US) (35) shows an average percentage change of -9.4% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (39), 2022 (39), 2023 (39), 2024 (37), 2025 (40).
