Shishibone, Ichikawa, 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
Shishibone, Ichikawa, 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
25th Aug 2023
9AQISame Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 29 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Shishibone, Ichikawa, Chiba, Japan
AQI
Day
Night
.
4 AM8th Aug 2026
6 PM
3 AM9th Aug 2026
Day time
Avg. Highest Time
11AM8th Aug
27AQI
Avg. Lowest Time
6PM8th Aug
21AQI
Night time
Avg. Highest Time
11PM8th Aug
44AQI
Avg. Lowest Time
1AM9th Aug
21AQI
In the last 24 hours,
Shishibone's AQI reached its highest point of 44 at 11 PM during the Night, while the lowest point, 21, was recorded at 1 AM during the Night between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Shishibone, Ichikawa, Chiba, Japan
JulAug
11th - 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 - 07th07th - 08th08th - 09th09th
Day
Night
11th Jul 202694 AMAQI
11th Jul 202685 AMAQI
11th Jul 2026316 AMAQI
11th Jul 2026287 AMAQI
11th Jul 2026188 AMAQI
11th Jul 2026309 AMAQI
11th Jul 20263110 AMAQI
11th Jul 20262711 AMAQI
11th Jul 20262612 PMAQI
11th Jul 2026231 PMAQI
11th Jul 2026222 PMAQI
11th Jul 2026223 PMAQI
11th Jul 2026224 PMAQI
11th Jul 2026295 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026267 PMAQI
11th Jul 2026168 PMAQI
11th Jul 202689 PMAQI
11th Jul 20262610 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026281 AMAQI
12th Jul 2026292 AMAQI
12th Jul 202693 AMAQI
26°C24/29°C
12th Jul 2026264 AMAQI
12th Jul 2026285 AMAQI
12th Jul 2026266 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026278 AMAQI
12th Jul 2026279 AMAQI
12th Jul 20262810 AMAQI
12th Jul 20262511 AMAQI
12th Jul 20262212 PMAQI
12th Jul 2026221 PMAQI
12th Jul 2026202 PMAQI
12th Jul 2026213 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026297 PMAQI
12th Jul 2026288 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20263012 AMAQI
13th Jul 2026301 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026293 AMAQI
25°C24/27°C
13th Jul 2026284 AMAQI
13th Jul 2026315 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026287 AMAQI
13th Jul 2026308 AMAQI
13th Jul 2026299 AMAQI
13th Jul 20262810 AMAQI
13th Jul 20262611 AMAQI
13th Jul 20262712 PMAQI
13th Jul 2026251 PMAQI
13th Jul 2026262 PMAQI
13th Jul 2026263 PMAQI
13th Jul 2026314 PMAQI
13th Jul 2026345 PMAQI
13th Jul 2026726 PMAQI
13th Jul 2026667 PMAQI
13th Jul 2026568 PMAQI
13th Jul 2026589 PMAQI
13th Jul 20265810 PMAQI
13th Jul 20265311 PMAQI
14th Jul 20264612 AMAQI
14th Jul 2026561 AMAQI
14th Jul 2026622 AMAQI
14th Jul 2026563 AMAQI
27°C25/30°C
14th Jul 2026554 AMAQI
14th Jul 2026525 AMAQI
14th Jul 2026406 AMAQI
14th Jul 2026487 AMAQI
14th Jul 2026368 AMAQI
14th Jul 2026409 AMAQI
14th Jul 20265210 AMAQI
14th Jul 20265311 AMAQI
14th Jul 20264212 PMAQI
14th Jul 2026381 PMAQI
14th Jul 2026382 PMAQI
14th Jul 2026423 PMAQI
14th Jul 2026234 PMAQI
14th Jul 2026295 PMAQI
14th Jul 2026276 PMAQI
14th Jul 2026297 PMAQI
14th Jul 2026318 PMAQI
14th Jul 2026369 PMAQI
14th Jul 20264410 PMAQI
14th Jul 20263311 PMAQI
15th Jul 20262712 AMAQI
15th Jul 2026211 AMAQI
15th Jul 2026312 AMAQI
15th Jul 2026183 AMAQI
27°C24/31°C
15th Jul 2026274 AMAQI
15th Jul 2026315 AMAQI
15th Jul 2026426 AMAQI
15th Jul 2026367 AMAQI
15th Jul 2026388 AMAQI
15th Jul 2026429 AMAQI
15th Jul 20265010 AMAQI
15th Jul 20265011 AMAQI
15th Jul 20264912 PMAQI
15th Jul 2026441 PMAQI
15th Jul 2026522 PMAQI
15th Jul 2026543 PMAQI
15th Jul 2026584 PMAQI
15th Jul 2026545 PMAQI
15th Jul 2026516 PMAQI
15th Jul 2026517 PMAQI
15th Jul 2026508 PMAQI
15th Jul 2026519 PMAQI
15th Jul 20264610 PMAQI
15th Jul 20264411 PMAQI
16th Jul 20264012 AMAQI
16th Jul 2026441 AMAQI
16th Jul 2026472 AMAQI
16th Jul 2026333 AMAQI
29°C26/32°C
16th Jul 2026624 AMAQI
16th Jul 2026655 AMAQI
16th Jul 2026686 AMAQI
16th Jul 2026677 AMAQI
16th Jul 2026708 AMAQI
16th Jul 2026679 AMAQI
16th Jul 20267110 AMAQI
16th Jul 20267611 AMAQI
16th Jul 20267612 PMAQI
16th Jul 2026781 PMAQI
16th Jul 2026812 PMAQI
16th Jul 2026883 PMAQI
16th Jul 2026844 PMAQI
16th Jul 2026925 PMAQI
16th Jul 2026816 PMAQI
16th Jul 2026697 PMAQI
16th Jul 2026768 PMAQI
16th Jul 2026869 PMAQI
16th Jul 20267910 PMAQI
16th Jul 20268311 PMAQI
17th Jul 20267412 AMAQI
17th Jul 2026661 AMAQI
17th Jul 2026602 AMAQI
17th Jul 2026513 AMAQI
29°C26/35°C
17th Jul 2026504 AMAQI
17th Jul 2026505 AMAQI
17th Jul 2026486 AMAQI
17th Jul 2026427 AMAQI
17th Jul 2026428 AMAQI
17th Jul 2026549 AMAQI
17th Jul 20265410 AMAQI
17th Jul 20266611 AMAQI
17th Jul 20266712 PMAQI
17th Jul 2026721 PMAQI
17th Jul 2026822 PMAQI
17th Jul 2026603 PMAQI
17th Jul 2026234 PMAQI
17th Jul 2026235 PMAQI
17th Jul 2026426 PMAQI
17th Jul 2026537 PMAQI
17th Jul 2026578 PMAQI
17th Jul 2026509 PMAQI
17th Jul 20265310 PMAQI
17th Jul 20264411 PMAQI
18th Jul 20263612 AMAQI
18th Jul 2026311 AMAQI
18th Jul 2026292 AMAQI
18th Jul 2026333 AMAQI
28°C26/30°C
18th Jul 2026334 AMAQI
18th Jul 2026295 AMAQI
18th Jul 2026216 AMAQI
18th Jul 2026217 AMAQI
18th Jul 2026128 AMAQI
18th Jul 2026199 AMAQI
18th Jul 20261510 AMAQI
18th Jul 20261711 AMAQI
18th Jul 20262512 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026212 PMAQI
18th Jul 2026123 PMAQI
18th Jul 202684 PMAQI
18th Jul 2026105 PMAQI
18th Jul 2026126 PMAQI
18th Jul 2026117 PMAQI
18th Jul 2026108 PMAQI
18th Jul 202689 PMAQI
18th Jul 2026810 PMAQI
18th Jul 20261011 PMAQI
19th Jul 2026812 AMAQI
19th Jul 202681 AMAQI
19th Jul 2026122 AMAQI
19th Jul 2026123 AMAQI
27°C25/30°C
19th Jul 2026124 AMAQI
19th Jul 2026125 AMAQI
19th Jul 2026116 AMAQI
19th Jul 202687 AMAQI
19th Jul 202678 AMAQI
19th Jul 202689 AMAQI
19th Jul 2026810 AMAQI
19th Jul 20262711 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026234 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026216 PMAQI
19th Jul 2026277 PMAQI
19th Jul 2026278 PMAQI
19th Jul 2026219 PMAQI
19th Jul 20262310 PMAQI
19th Jul 20262511 PMAQI
20th Jul 20262512 AMAQI
20th Jul 2026231 AMAQI
20th Jul 2026232 AMAQI
20th Jul 2026233 AMAQI
27°C24/30°C
20th Jul 2026234 AMAQI
20th Jul 2026255 AMAQI
20th Jul 2026256 AMAQI
20th Jul 2026257 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262710 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20262112 PMAQI
20th Jul 2026211 PMAQI
20th Jul 2026212 PMAQI
20th Jul 2026213 PMAQI
20th Jul 2026294 PMAQI
20th Jul 2026295 PMAQI
20th Jul 2026296 PMAQI
20th Jul 2026317 PMAQI
20th Jul 2026318 PMAQI
20th Jul 2026389 PMAQI
20th Jul 20263310 PMAQI
20th Jul 20263811 PMAQI
21st Jul 20263612 AMAQI
21st Jul 2026341 AMAQI
21st Jul 2026402 AMAQI
21st Jul 2026403 AMAQI
30°C26/34°C
21st Jul 2026334 AMAQI
21st Jul 2026335 AMAQI
21st Jul 2026336 AMAQI
21st Jul 2026387 AMAQI
21st Jul 2026408 AMAQI
21st Jul 2026339 AMAQI
21st Jul 20263610 AMAQI
21st Jul 20264011 AMAQI
21st Jul 2026481 PMAQI
21st Jul 2026532 PMAQI
21st Jul 2026553 PMAQI
21st Jul 2026564 PMAQI
21st Jul 2026555 PMAQI
21st Jul 2026556 PMAQI
21st Jul 2026967 PMAQI
21st Jul 2026568 PMAQI
21st Jul 2026529 PMAQI
21st Jul 20265410 PMAQI
21st Jul 20265811 PMAQI
22nd Jul 20265812 AMAQI
22nd Jul 2026601 AMAQI
22nd Jul 2026602 AMAQI
22nd Jul 2026623 AMAQI
30°C27/35°C
22nd Jul 2026634 AMAQI
22nd Jul 2026625 AMAQI
22nd Jul 2026596 AMAQI
22nd Jul 2026657 AMAQI
22nd Jul 2026628 AMAQI
22nd Jul 2026629 AMAQI
22nd Jul 20266510 AMAQI
22nd Jul 20266711 AMAQI
22nd Jul 20267212 PMAQI
22nd Jul 2026761 PMAQI
22nd Jul 2026812 PMAQI
22nd Jul 2026783 PMAQI
22nd Jul 2026714 PMAQI
22nd Jul 2026695 PMAQI
22nd Jul 2026676 PMAQI
22nd Jul 2026677 PMAQI
22nd Jul 2026708 PMAQI
22nd Jul 2026699 PMAQI
22nd Jul 20267610 PMAQI
22nd Jul 20268111 PMAQI
23rd Jul 20267612 AMAQI
23rd Jul 2026701 AMAQI
23rd Jul 2026602 AMAQI
23rd Jul 2026623 AMAQI
30°C27/34°C
23rd Jul 2026594 AMAQI
23rd Jul 2026605 AMAQI
23rd Jul 2026586 AMAQI
23rd Jul 2026637 AMAQI
23rd Jul 2026608 AMAQI
23rd Jul 2026609 AMAQI
23rd Jul 20266510 AMAQI
23rd Jul 20266611 AMAQI
23rd Jul 20266912 PMAQI
23rd Jul 2026701 PMAQI
23rd Jul 2026762 PMAQI
23rd Jul 2026813 PMAQI
23rd Jul 2026754 PMAQI
23rd Jul 2026685 PMAQI
23rd Jul 2026646 PMAQI
23rd Jul 2026607 PMAQI
23rd Jul 2026558 PMAQI
23rd Jul 2026429 PMAQI
23rd Jul 20264010 PMAQI
23rd Jul 20262711 PMAQI
24th Jul 20263312 AMAQI
24th Jul 2026331 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026273 AMAQI
31°C28/37°C
24th Jul 2026254 AMAQI
24th Jul 2026255 AMAQI
24th Jul 2026216 AMAQI
24th Jul 2026217 AMAQI
24th Jul 2026278 AMAQI
24th Jul 2026259 AMAQI
24th Jul 20262910 AMAQI
24th Jul 20264411 AMAQI
24th Jul 20264612 PMAQI
24th Jul 2026461 PMAQI
24th Jul 2026622 PMAQI
24th Jul 2026743 PMAQI
24th Jul 2026704 PMAQI
24th Jul 2026765 PMAQI
24th Jul 2026516 PMAQI
24th Jul 2026677 PMAQI
24th Jul 2026448 PMAQI
24th Jul 2026489 PMAQI
24th Jul 20264210 PMAQI
24th Jul 20263811 PMAQI
25th Jul 20264812 AMAQI
25th Jul 2026521 AMAQI
25th Jul 2026582 AMAQI
25th Jul 2026383 AMAQI
29°C26/33°C
25th Jul 2026334 AMAQI
25th Jul 2026335 AMAQI
25th Jul 2026256 AMAQI
25th Jul 2026197 AMAQI
25th Jul 2026218 AMAQI
25th Jul 2026239 AMAQI
25th Jul 20262110 AMAQI
25th Jul 20264211 AMAQI
25th Jul 20265612 PMAQI
25th Jul 2026651 PMAQI
25th Jul 2026502 PMAQI
25th Jul 2026483 PMAQI
25th Jul 2026544 PMAQI
25th Jul 2026465 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026178 PMAQI
25th Jul 2026129 PMAQI
25th Jul 20261710 PMAQI
25th Jul 20261911 PMAQI
26th Jul 2026912 AMAQI
26th Jul 2026171 AMAQI
26th Jul 2026192 AMAQI
26th Jul 2026123 AMAQI
29°C24/34°C
26th Jul 2026174 AMAQI
26th Jul 2026125 AMAQI
26th Jul 2026116 AMAQI
26th Jul 2026127 AMAQI
26th Jul 2026128 AMAQI
26th Jul 2026129 AMAQI
26th Jul 20261710 AMAQI
26th Jul 20262711 AMAQI
26th Jul 20262512 PMAQI
26th Jul 2026491 PMAQI
26th Jul 2026542 PMAQI
26th Jul 2026673 PMAQI
26th Jul 2026404 PMAQI
26th Jul 2026235 PMAQI
26th Jul 2026256 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026338 PMAQI
26th Jul 2026299 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262511 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026212 AMAQI
27th Jul 2026253 AMAQI
28°C25/31°C
27th Jul 2026214 AMAQI
27th Jul 2026215 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026219 AMAQI
27th Jul 20262110 AMAQI
27th Jul 20262511 AMAQI
27th Jul 20262112 PMAQI
27th Jul 2026211 PMAQI
27th Jul 2026212 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026215 PMAQI
27th Jul 2026216 PMAQI
27th Jul 2026217 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026239 PMAQI
27th Jul 20263110 PMAQI
27th Jul 20262911 PMAQI
28th Jul 20262112 AMAQI
28th Jul 2026211 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026233 AMAQI
26°C24/30°C
28th Jul 2026214 AMAQI
28th Jul 2026215 AMAQI
28th Jul 2026216 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026218 AMAQI
28th Jul 2026239 AMAQI
28th Jul 20262110 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20262112 PMAQI
28th Jul 2026291 PMAQI
28th Jul 2026312 PMAQI
28th Jul 2026273 PMAQI
28th Jul 2026254 PMAQI
28th Jul 2026255 PMAQI
28th Jul 2026296 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026279 PMAQI
28th Jul 20263310 PMAQI
28th Jul 20264811 PMAQI
29th Jul 20265412 AMAQI
29th Jul 2026551 AMAQI
29th Jul 2026582 AMAQI
29th Jul 2026363 AMAQI
26°C23/30°C
29th Jul 2026594 AMAQI
29th Jul 2026555 AMAQI
29th Jul 2026626 AMAQI
29th Jul 2026517 AMAQI
29th Jul 2026298 AMAQI
29th Jul 2026429 AMAQI
29th Jul 20264010 AMAQI
29th Jul 20262311 AMAQI
29th Jul 20262912 PMAQI
29th Jul 2026271 PMAQI
29th Jul 2026122 PMAQI
29th Jul 2026123 PMAQI
29th Jul 2026104 PMAQI
29th Jul 202685 PMAQI
29th Jul 2026126 PMAQI
29th Jul 2026177 PMAQI
29th Jul 2026178 PMAQI
29th Jul 2026179 PMAQI
29th Jul 20262510 PMAQI
29th Jul 20263311 PMAQI
30th Jul 20262312 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026212 AMAQI
30th Jul 2026233 AMAQI
29°C25/35°C
30th Jul 2026214 AMAQI
30th Jul 2026215 AMAQI
30th Jul 2026236 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026128 AMAQI
30th Jul 2026149 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20263111 AMAQI
30th Jul 20264012 PMAQI
30th Jul 2026511 PMAQI
30th Jul 2026582 PMAQI
30th Jul 2026603 PMAQI
30th Jul 2026664 PMAQI
30th Jul 2026725 PMAQI
30th Jul 2026686 PMAQI
30th Jul 2026747 PMAQI
30th Jul 2026608 PMAQI
30th Jul 2026609 PMAQI
30th Jul 20264610 PMAQI
30th Jul 20264811 PMAQI
31st Jul 20265612 AMAQI
31st Jul 2026521 AMAQI
31st Jul 2026332 AMAQI
31st Jul 2026363 AMAQI
31°C27/35°C
31st Jul 2026364 AMAQI
31st Jul 2026405 AMAQI
31st Jul 2026426 AMAQI
31st Jul 2026487 AMAQI
31st Jul 2026368 AMAQI
31st Jul 2026319 AMAQI
31st Jul 20264210 AMAQI
31st Jul 20264811 AMAQI
31st Jul 20266012 PMAQI
31st Jul 2026551 PMAQI
31st Jul 2026522 PMAQI
31st Jul 2026523 PMAQI
31st Jul 2026404 PMAQI
31st Jul 2026445 PMAQI
31st Jul 2026546 PMAQI
31st Jul 2026707 PMAQI
31st Jul 2026688 PMAQI
31st Jul 2026519 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20264811 PMAQI
1st Aug 20265712 AMAQI
1st Aug 2026521 AMAQI
1st Aug 2026562 AMAQI
1st Aug 2026473 AMAQI
30°C27/35°C
1st Aug 2026604 AMAQI
1st Aug 2026605 AMAQI
1st Aug 2026586 AMAQI
1st Aug 2026577 AMAQI
1st Aug 2026598 AMAQI
1st Aug 2026589 AMAQI
1st Aug 20265610 AMAQI
1st Aug 20265811 AMAQI
1st Aug 20266212 PMAQI
1st Aug 2026681 PMAQI
1st Aug 2026602 PMAQI
1st Aug 2026653 PMAQI
1st Aug 2026654 PMAQI
1st Aug 2026625 PMAQI
1st Aug 2026626 PMAQI
1st Aug 2026707 PMAQI
1st Aug 2026718 PMAQI
1st Aug 2026729 PMAQI
1st Aug 20266810 PMAQI
1st Aug 20267011 PMAQI
2nd Aug 20267112 AMAQI
2nd Aug 2026791 AMAQI
2nd Aug 2026742 AMAQI
2nd Aug 2026443 AMAQI
31°C26/36°C
2nd Aug 2026794 AMAQI
2nd Aug 2026765 AMAQI
2nd Aug 2026736 AMAQI
2nd Aug 2026797 AMAQI
2nd Aug 2026628 AMAQI
2nd Aug 2026549 AMAQI
2nd Aug 20265910 AMAQI
2nd Aug 20268211 AMAQI
2nd Aug 20266612 PMAQI
2nd Aug 2026561 PMAQI
2nd Aug 2026542 PMAQI
2nd Aug 2026383 PMAQI
2nd Aug 2026464 PMAQI
2nd Aug 2026295 PMAQI
2nd Aug 2026296 PMAQI
2nd Aug 2026217 PMAQI
2nd Aug 2026198 PMAQI
2nd Aug 202689 PMAQI
2nd Aug 2026810 PMAQI
2nd Aug 2026811 PMAQI
3rd Aug 2026812 AMAQI
3rd Aug 202671 AMAQI
3rd Aug 202682 AMAQI
3rd Aug 2026143 AMAQI
29°C24/34°C
3rd Aug 2026124 AMAQI
3rd Aug 202695 AMAQI
3rd Aug 2026146 AMAQI
3rd Aug 2026147 AMAQI
3rd Aug 2026178 AMAQI
3rd Aug 2026179 AMAQI
3rd Aug 20261710 AMAQI
3rd Aug 20261911 AMAQI
3rd Aug 20262512 PMAQI
3rd Aug 2026231 PMAQI
3rd Aug 2026172 PMAQI
3rd Aug 2026253 PMAQI
3rd Aug 2026364 PMAQI
3rd Aug 2026275 PMAQI
3rd Aug 2026236 PMAQI
3rd Aug 2026367 PMAQI
3rd Aug 2026298 PMAQI
3rd Aug 2026279 PMAQI
3rd Aug 20262710 PMAQI
3rd Aug 20262911 PMAQI
4th Aug 20262912 AMAQI
4th Aug 2026251 AMAQI
4th Aug 2026252 AMAQI
4th Aug 2026253 AMAQI
25°C23/27°C
4th Aug 2026274 AMAQI
4th Aug 2026275 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026257 AMAQI
4th Aug 2026178 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262310 AMAQI
4th Aug 20262311 AMAQI
4th Aug 20262512 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026292 PMAQI
4th Aug 2026293 PMAQI
4th Aug 2026314 PMAQI
4th Aug 2026295 PMAQI
4th Aug 2026296 PMAQI
4th Aug 2026297 PMAQI
4th Aug 2026298 PMAQI
4th Aug 2026299 PMAQI
4th Aug 20262910 PMAQI
4th Aug 20262711 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026291 AMAQI
5th Aug 2026272 AMAQI
5th Aug 2026293 AMAQI
25°C22/29°C
5th Aug 2026294 AMAQI
5th Aug 2026295 AMAQI
5th Aug 2026276 AMAQI
5th Aug 2026297 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026299 AMAQI
5th Aug 20262910 AMAQI
5th Aug 20262711 AMAQI
5th Aug 20262912 PMAQI
5th Aug 2026271 PMAQI
5th Aug 2026292 PMAQI
5th Aug 2026293 PMAQI
5th Aug 2026294 PMAQI
5th Aug 2026275 PMAQI
5th Aug 2026276 PMAQI
5th Aug 2026277 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026279 PMAQI
5th Aug 20262110 PMAQI
5th Aug 20262511 PMAQI
6th Aug 20262312 AMAQI
6th Aug 2026211 AMAQI
6th Aug 2026302 AMAQI
6th Aug 2026213 AMAQI
26°C23/30°C
6th Aug 2026274 AMAQI
6th Aug 2026235 AMAQI
6th Aug 2026236 AMAQI
6th Aug 2026257 AMAQI
6th Aug 2026218 AMAQI
6th Aug 2026279 AMAQI
6th Aug 20262310 AMAQI
6th Aug 20262311 AMAQI
6th Aug 20262312 PMAQI
6th Aug 2026231 PMAQI
6th Aug 2026252 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026254 PMAQI
6th Aug 2026255 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026277 PMAQI
6th Aug 2026278 PMAQI
6th Aug 2026259 PMAQI
6th Aug 20262310 PMAQI
6th Aug 20262311 PMAQI
7th Aug 20262312 AMAQI
7th Aug 2026211 AMAQI
7th Aug 2026212 AMAQI
7th Aug 2026213 AMAQI
29°C25/33°C
7th Aug 2026214 AMAQI
7th Aug 2026215 AMAQI
7th Aug 2026216 AMAQI
7th Aug 2026217 AMAQI
7th Aug 2026218 AMAQI
7th Aug 2026219 AMAQI
7th Aug 20262110 AMAQI
7th Aug 20262111 AMAQI
7th Aug 20263612 PMAQI
7th Aug 2026441 PMAQI
7th Aug 2026212 PMAQI
7th Aug 2026213 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026255 PMAQI
7th Aug 2026216 PMAQI
7th Aug 2026237 PMAQI
7th Aug 2026238 PMAQI
7th Aug 2026219 PMAQI
7th Aug 20262310 PMAQI
7th Aug 20262111 PMAQI
8th Aug 20262312 AMAQI
8th Aug 2026231 AMAQI
8th Aug 2026252 AMAQI
8th Aug 2026233 AMAQI
29°C26/33°C
8th Aug 2026234 AMAQI
8th Aug 2026215 AMAQI
8th Aug 2026216 AMAQI
8th Aug 2026217 AMAQI
8th Aug 2026218 AMAQI
8th Aug 2026219 AMAQI
8th Aug 20262510 AMAQI
8th Aug 20262711 AMAQI
8th Aug 20262512 PMAQI
8th Aug 2026231 PMAQI
8th Aug 2026232 PMAQI
8th Aug 2026273 PMAQI
8th Aug 2026274 PMAQI
8th Aug 2026255 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026218 PMAQI
8th Aug 2026219 PMAQI
8th Aug 20262510 PMAQI
8th Aug 20264411 PMAQI
9th Aug 20262112 AMAQI
9th Aug 2026211 AMAQI
9th Aug 2026232 AMAQI
9th Aug 2026253 AMAQI
29°C25/33°C
9th Aug 2026214 AMAQI
4 AM9th Aug 2026215 AMAQI
9th Aug 2026236 AMAQI
9th Aug 2026237 AMAQI
9th Aug 2026218 AMAQI
9th Aug 2026219 AMAQI
9th Aug 20262510 AMAQI
9th Aug 20262511 AMAQI
11 AM9th Aug 20262512 PMAQI
9th Aug 2026251 PMAQI
9th Aug 2026252 PMAQI
9th Aug 2026273 PMAQI
9th Aug 2026274 PMAQI
9th Aug 2026295 PMAQI
9th Aug 2026366 PMAQI
6 PM9th Aug 2026607 PMAQI
9th Aug 2026488 PMAQI
9th Aug 2026389 PMAQI
9th Aug 20264810 PMAQI
9th Aug 20263111 PMAQI
11 PM3 AM
28°C25/33°C
Day time
Avg. Highest Time
1 PM - 3 PM
41AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
8 AM
31AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 3 PM (Avg. 41), while the lowest AQI was between 8 AM to 8 AM (Avg. 31).
Night time
Avg. Highest Time
7 PM
42AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM
31AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 42), while the lowest AQI was between 3 AM to 3 AM (Avg. 31).
2026 Days Vs Air Quality
Shishibone, Ichikawa, Chiba, Japan
2026
86%
190
14%
31
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Good
190 DaysModerate
31 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2026, 86% of 221 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
Shishibone, Ichikawa, 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
19AQI (US)
19AQI (US)
2nd January 2026
19AQI (US)
19AQI (US)
3rd January 2026
15AQI (US)
15AQI (US)
4th January 2026
22AQI (US)
22AQI (US)
5th January 2026
48AQI (US)
48AQI (US)
6th January 2026
20AQI (US)
20AQI (US)
7th January 2026
30AQI (US)
30AQI (US)
8th January 2026
41AQI (US)
41AQI (US)
9th January 2026
15AQI (US)
15AQI (US)
10th January 2026
37AQI (US)
37AQI (US)
11th January 2026
31AQI (US)
31AQI (US)
12th January 2026
19AQI (US)
19AQI (US)
13th January 2026
37AQI (US)
37AQI (US)
14th January 2026
16AQI (US)
16AQI (US)
15th January 2026
27AQI (US)
27AQI (US)
16th January 2026
48AQI (US)
48AQI (US)
17th January 2026
53AQI (US)
53AQI (US)
18th January 2026
24AQI (US)
24AQI (US)
19th January 2026
44AQI (US)
44AQI (US)
20th January 2026
49AQI (US)
49AQI (US)
21st January 2026
12AQI (US)
12AQI (US)
22nd January 2026
24AQI (US)
24AQI (US)
23rd January 2026
38AQI (US)
38AQI (US)
24th January 2026
42AQI (US)
42AQI (US)
25th January 2026
43AQI (US)
43AQI (US)
26th January 2026
22AQI (US)
22AQI (US)
27th January 2026
44AQI (US)
44AQI (US)
28th January 2026
24AQI (US)
24AQI (US)
29th January 2026
18AQI (US)
18AQI (US)
30th January 2026
27AQI (US)
27AQI (US)
31st January 2026
38AQI (US)
38AQI (US)
1st February 2026
39AQI (US)
39AQI (US)
2nd February 2026
47AQI (US)
47AQI (US)
3rd February 2026
26AQI (US)
26AQI (US)
4th February 2026
41AQI (US)
41AQI (US)
5th February 2026
64AQI (US)
64AQI (US)
6th February 2026
63AQI (US)
63AQI (US)
7th February 2026
14AQI (US)
14AQI (US)
8th February 2026
13AQI (US)
13AQI (US)
9th February 2026
32AQI (US)
32AQI (US)
10th February 2026
41AQI (US)
41AQI (US)
11th February 2026
58AQI (US)
58AQI (US)
12th February 2026
30AQI (US)
30AQI (US)
13th February 2026
48AQI (US)
48AQI (US)
14th February 2026
63AQI (US)
63AQI (US)
15th February 2026
63AQI (US)
63AQI (US)
16th February 2026
50AQI (US)
50AQI (US)
17th February 2026
16AQI (US)
16AQI (US)
18th February 2026
41AQI (US)
41AQI (US)
19th February 2026
19AQI (US)
19AQI (US)
20th February 2026
26AQI (US)
26AQI (US)
21st February 2026
48AQI (US)
48AQI (US)
22nd February 2026
50AQI (US)
50AQI (US)
23rd February 2026
33AQI (US)
33AQI (US)
24th February 2026
45AQI (US)
45AQI (US)
25th February 2026
34AQI (US)
34AQI (US)
26th February 2026
21AQI (US)
21AQI (US)
27th February 2026
34AQI (US)
34AQI (US)
28th February 2026
24AQI (US)
24AQI (US)
1st March 2026
19AQI (US)
19AQI (US)
2nd March 2026
60AQI (US)
60AQI (US)
3rd March 2026
43AQI (US)
43AQI (US)
4th March 2026
41AQI (US)
41AQI (US)
5th March 2026
10AQI (US)
10AQI (US)
6th March 2026
26AQI (US)
26AQI (US)
7th March 2026
43AQI (US)
43AQI (US)
8th March 2026
33AQI (US)
33AQI (US)
9th March 2026
42AQI (US)
42AQI (US)
10th March 2026
56AQI (US)
56AQI (US)
11th March 2026
56AQI (US)
56AQI (US)
12th March 2026
63AQI (US)
63AQI (US)
13th March 2026
37AQI (US)
37AQI (US)
14th March 2026
45AQI (US)
45AQI (US)
15th March 2026
56AQI (US)
56AQI (US)
16th March 2026
48AQI (US)
48AQI (US)
17th March 2026
46AQI (US)
46AQI (US)
18th March 2026
49AQI (US)
49AQI (US)
19th March 2026
37AQI (US)
37AQI (US)
20th March 2026
32AQI (US)
32AQI (US)
21st March 2026
51AQI (US)
51AQI (US)
22nd March 2026
45AQI (US)
45AQI (US)
23rd March 2026
46AQI (US)
46AQI (US)
24th March 2026
48AQI (US)
48AQI (US)
25th March 2026
62AQI (US)
62AQI (US)
26th March 2026
28AQI (US)
28AQI (US)
27th March 2026
29AQI (US)
29AQI (US)
28th March 2026
51AQI (US)
51AQI (US)
29th March 2026
50AQI (US)
50AQI (US)
30th March 2026
56AQI (US)
56AQI (US)
31st March 2026
34AQI (US)
34AQI (US)
1st April 2026
28AQI (US)
28AQI (US)
2nd April 2026
32AQI (US)
32AQI (US)
3rd April 2026
45AQI (US)
45AQI (US)
4th April 2026
46AQI (US)
46AQI (US)
5th April 2026
38AQI (US)
38AQI (US)
6th April 2026
29AQI (US)
29AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
22AQI (US)
22AQI (US)
9th April 2026
30AQI (US)
30AQI (US)
10th April 2026
48AQI (US)
48AQI (US)
11th April 2026
49AQI (US)
49AQI (US)
12th April 2026
34AQI (US)
34AQI (US)
13th April 2026
43AQI (US)
43AQI (US)
14th April 2026
39AQI (US)
39AQI (US)
15th April 2026
36AQI (US)
36AQI (US)
16th April 2026
34AQI (US)
34AQI (US)
17th April 2026
33AQI (US)
33AQI (US)
18th April 2026
31AQI (US)
31AQI (US)
19th April 2026
33AQI (US)
33AQI (US)
20th April 2026
32AQI (US)
32AQI (US)
21st April 2026
35AQI (US)
35AQI (US)
22nd April 2026
44AQI (US)
44AQI (US)
23rd April 2026
39AQI (US)
39AQI (US)
24th April 2026
32AQI (US)
32AQI (US)
25th April 2026
46AQI (US)
46AQI (US)
26th April 2026
52AQI (US)
52AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
43AQI (US)
43AQI (US)
29th April 2026
40AQI (US)
40AQI (US)
30th April 2026
35AQI (US)
35AQI (US)
1st May 2026
47AQI (US)
47AQI (US)
2nd May 2026
49AQI (US)
49AQI (US)
3rd May 2026
51AQI (US)
51AQI (US)
4th May 2026
36AQI (US)
36AQI (US)
5th May 2026
22AQI (US)
22AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
29AQI (US)
29AQI (US)
8th May 2026
26AQI (US)
26AQI (US)
9th May 2026
25AQI (US)
25AQI (US)
10th May 2026
29AQI (US)
29AQI (US)
11th May 2026
29AQI (US)
29AQI (US)
12th May 2026
33AQI (US)
33AQI (US)
13th May 2026
39AQI (US)
39AQI (US)
14th May 2026
34AQI (US)
34AQI (US)
15th May 2026
34AQI (US)
34AQI (US)
16th May 2026
86AQI (US)
86AQI (US)
17th May 2026
69AQI (US)
69AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
48AQI (US)
48AQI (US)
20th May 2026
62AQI (US)
62AQI (US)
21st May 2026
59AQI (US)
59AQI (US)
22nd May 2026
60AQI (US)
60AQI (US)
23rd May 2026
53AQI (US)
53AQI (US)
24th May 2026
57AQI (US)
57AQI (US)
25th May 2026
46AQI (US)
46AQI (US)
26th May 2026
40AQI (US)
40AQI (US)
27th May 2026
24AQI (US)
24AQI (US)
28th May 2026
26AQI (US)
26AQI (US)
29th May 2026
25AQI (US)
25AQI (US)
30th May 2026
23AQI (US)
23AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
29AQI (US)
29AQI (US)
2nd June 2026
22AQI (US)
22AQI (US)
3rd June 2026
13AQI (US)
13AQI (US)
4th June 2026
22AQI (US)
22AQI (US)
5th June 2026
22AQI (US)
22AQI (US)
6th June 2026
21AQI (US)
21AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
23AQI (US)
23AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
23AQI (US)
23AQI (US)
13th June 2026
34AQI (US)
34AQI (US)
14th June 2026
43AQI (US)
43AQI (US)
15th June 2026
12AQI (US)
12AQI (US)
16th June 2026
22AQI (US)
22AQI (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
23AQI (US)
23AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
19AQI (US)
19AQI (US)
23rd June 2026
20AQI (US)
20AQI (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
21AQI (US)
21AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
24AQI (US)
24AQI (US)
30th June 2026
23AQI (US)
23AQI (US)
1st July 2026
34AQI (US)
34AQI (US)
2nd July 2026
21AQI (US)
21AQI (US)
3rd July 2026
17AQI (US)
17AQI (US)
4th July 2026
38AQI (US)
38AQI (US)
5th July 2026
21AQI (US)
21AQI (US)
6th July 2026
26AQI (US)
26AQI (US)
7th July 2026
25AQI (US)
25AQI (US)
8th July 2026
23AQI (US)
23AQI (US)
9th July 2026
22AQI (US)
22AQI (US)
10th July 2026
22AQI (US)
22AQI (US)
11th July 2026
22AQI (US)
22AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
37AQI (US)
37AQI (US)
14th July 2026
42AQI (US)
42AQI (US)
15th July 2026
42AQI (US)
42AQI (US)
16th July 2026
70AQI (US)
70AQI (US)
17th July 2026
53AQI (US)
53AQI (US)
18th July 2026
19AQI (US)
19AQI (US)
19th July 2026
18AQI (US)
18AQI (US)
20th July 2026
26AQI (US)
26AQI (US)
21st July 2026
47AQI (US)
47AQI (US)
22nd July 2026
68AQI (US)
68AQI (US)
23rd July 2026
62AQI (US)
62AQI (US)
24th July 2026
42AQI (US)
42AQI (US)
25th July 2026
35AQI (US)
35AQI (US)
26th July 2026
25AQI (US)
25AQI (US)
27th July 2026
23AQI (US)
23AQI (US)
28th July 2026
25AQI (US)
25AQI (US)
29th July 2026
33AQI (US)
33AQI (US)
30th July 2026
40AQI (US)
40AQI (US)
31st July 2026
48AQI (US)
48AQI (US)
1st August 2026
61AQI (US)
61AQI (US)
2nd August 2026
51AQI (US)
51AQI (US)
3rd August 2026
20AQI (US)
20AQI (US)
4th August 2026
26AQI (US)
26AQI (US)
5th August 2026
28AQI (US)
28AQI (US)
6th August 2026
24AQI (US)
24AQI (US)
7th August 2026
23AQI (US)
23AQI (US)
8th August 2026
24AQI (US)
24AQI (US)
9th August 2026
29AQI (US)
29AQI (US)
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
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
31AQI (US)
39AQI (US)
43AQI (US)
37AQI (US)
41AQI (US)
23AQI (US)
34AQI (US)
32AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
30
1
23
5
22
9
29
1
22
9
30
27
4
7
2
190
31
Highest AQI (US) recorded in
March43AQI (US)
Lowest AQI (US) recorded in
June23AQI (US)
202535AQI (US)
31
28
28
3
30
31
30
25
6
22
9
30
19
12
18
12
14
17
306
59
Highest AQI (US) recorded in
December50AQI (US)
Lowest AQI (US) recorded in
May19AQI (US)
202430AQI (US)
30
1
29
31
30
31
28
2
30
1
31
30
31
29
1
31
361
5
Highest AQI (US) recorded in
June38AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
202330AQI (US)
30
1
28
26
5
25
5
30
1
29
1
31
31
30
31
28
1
29
2
348
16
Highest AQI (US) recorded in
April42AQI (US)
Lowest AQI (US) recorded in
August17AQI (US)
202230AQI (US)
31
20
1
31
27
3
31
30
20
2
1
29
29
2
30
31
310
8
Highest AQI (US) recorded in
April35AQI (US)
Lowest AQI (US) recorded in
August21AQI (US)
202122AQI (US)
30
1
28
31
30
28
3
28
2
31
30
1
30
31
30
31
358
7
Highest AQI (US) recorded in
May39AQI (US)
Lowest AQI (US) recorded in
February12AQI (US)
202015AQI (US)
13
21
18
30
31
31
19
31
29
1
31
254
1
Highest AQI (US) recorded in
March21AQI (US)
Lowest AQI (US) recorded in
September11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2026(Avg.)
35AQI (US)Least Polluted Year Recorded
2020(Avg.)
15AQI (US)Shishibone's annual 2026 AQI (US) (35) shows an average percentage change of 40.4% (worsened AQI (US)) compared to previous years: 2020 (15), 2021 (22), 2022 (30), 2023 (30), 2024 (30), 2025 (35).
