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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Hinode, Honcho, 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+

October Air Quality Analysis

Hinode, Honcho, Chiba, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
23rd Oct 2022
69AQI
Lowest AQI recorded on
9th Oct 2023
21AQI

Same Day Analysis (3rd October):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 24 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2026

Hinode, Honcho, Chiba, Japan

AQI
Day
Night
.

5 AM2nd Oct 2026

5 PM

4 AM3rd Oct 2026

Day time
Avg. Highest Time
9AM2nd Oct

25AQI

Avg. Lowest Time
5PM2nd Oct

21AQI

Night time
Avg. Highest Time
7PM2nd Oct

25AQI

Avg. Lowest Time
3AM3rd Oct

21AQI

In the last 24 hours,

Hinode's AQI reached its highest point of 25 at 9 AM during the Day, while the lowest point, 21, was recorded at 3 AM during the Night between 2nd Oct and 3rd Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Hinode, Honcho, Chiba, Japan

SepOct
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Sep 2026215 AMAQI
4th Sep 2026216 AMAQI
4th Sep 2026237 AMAQI
4th Sep 2026238 AMAQI
4th Sep 2026219 AMAQI
4th Sep 20262510 AMAQI
4th Sep 20262111 AMAQI
4th Sep 20262312 PMAQI
4th Sep 2026211 PMAQI
4th Sep 2026212 PMAQI
4th Sep 2026233 PMAQI
4th Sep 2026214 PMAQI
4th Sep 2026215 PMAQI
4th Sep 2026216 PMAQI
4th Sep 2026217 PMAQI
4th Sep 2026218 PMAQI
4th Sep 2026219 PMAQI
4th Sep 20262110 PMAQI
4th Sep 20262111 PMAQI
5th Sep 20262312 AMAQI
5th Sep 2026251 AMAQI
5th Sep 2026252 AMAQI
5th Sep 2026253 AMAQI
5th Sep 2026254 AMAQI

23°C22/25°C

5th Sep 2026215 AMAQI
5th Sep 2026216 AMAQI
5th Sep 2026257 AMAQI
5th Sep 2026258 AMAQI
5th Sep 2026219 AMAQI
5th Sep 20262110 AMAQI
5th Sep 20262511 AMAQI
5th Sep 20262512 PMAQI
5th Sep 2026211 PMAQI
5th Sep 2026252 PMAQI
5th Sep 2026253 PMAQI
5th Sep 2026234 PMAQI
5th Sep 2026235 PMAQI
5th Sep 2026256 PMAQI
5th Sep 2026257 PMAQI
5th Sep 2026238 PMAQI
5th Sep 2026219 PMAQI
5th Sep 20262110 PMAQI
5th Sep 20262111 PMAQI
6th Sep 20262312 AMAQI
6th Sep 2026251 AMAQI
6th Sep 2026252 AMAQI
6th Sep 2026253 AMAQI
6th Sep 2026254 AMAQI

22°C21/24°C

6th Sep 2026255 AMAQI
6th Sep 2026216 AMAQI
6th Sep 2026257 AMAQI
6th Sep 2026218 AMAQI
6th Sep 2026259 AMAQI
6th Sep 20262310 AMAQI
6th Sep 20262511 AMAQI
6th Sep 20262512 PMAQI
6th Sep 2026211 PMAQI
6th Sep 2026252 PMAQI
6th Sep 2026213 PMAQI
6th Sep 2026214 PMAQI
6th Sep 2026215 PMAQI
6th Sep 2026216 PMAQI
6th Sep 2026237 PMAQI
6th Sep 2026238 PMAQI
6th Sep 2026259 PMAQI
6th Sep 20262510 PMAQI
6th Sep 20262511 PMAQI
7th Sep 20262112 AMAQI
7th Sep 2026101 AMAQI
7th Sep 202682 AMAQI
7th Sep 202683 AMAQI
7th Sep 202684 AMAQI

23°C21/24°C

7th Sep 2026105 AMAQI
7th Sep 2026126 AMAQI
7th Sep 2026187 AMAQI
7th Sep 2026258 AMAQI
7th Sep 2026109 AMAQI
7th Sep 20261210 AMAQI
7th Sep 20262111 AMAQI
7th Sep 20262312 PMAQI
7th Sep 2026211 PMAQI
7th Sep 2026232 PMAQI
7th Sep 2026253 PMAQI
7th Sep 2026254 PMAQI
7th Sep 2026295 PMAQI
7th Sep 2026216 PMAQI
7th Sep 2026217 PMAQI
7th Sep 2026218 PMAQI
7th Sep 2026219 PMAQI
7th Sep 20262510 PMAQI
7th Sep 20262511 PMAQI
8th Sep 20262512 AMAQI
8th Sep 2026251 AMAQI
8th Sep 2026252 AMAQI
8th Sep 2026293 AMAQI
8th Sep 2026254 AMAQI

24°C22/27°C

8th Sep 2026275 AMAQI
8th Sep 2026296 AMAQI
8th Sep 2026277 AMAQI
8th Sep 2026258 AMAQI
8th Sep 2026259 AMAQI
8th Sep 20262510 AMAQI
8th Sep 20262511 AMAQI
8th Sep 20262712 PMAQI
8th Sep 2026291 PMAQI
8th Sep 2026292 PMAQI
8th Sep 2026563 PMAQI
8th Sep 2026234 PMAQI
8th Sep 2026325 PMAQI
8th Sep 2026346 PMAQI
8th Sep 2026277 PMAQI
8th Sep 2026258 PMAQI
8th Sep 2026329 PMAQI
8th Sep 20263610 PMAQI
8th Sep 20263811 PMAQI
9th Sep 20263812 AMAQI
9th Sep 2026331 AMAQI
9th Sep 2026362 AMAQI
9th Sep 2026333 AMAQI
9th Sep 2026384 AMAQI

25°C22/29°C

9th Sep 2026385 AMAQI
9th Sep 2026386 AMAQI
9th Sep 2026407 AMAQI
9th Sep 2026408 AMAQI
9th Sep 2026429 AMAQI
9th Sep 20264410 AMAQI
9th Sep 20263811 AMAQI
9th Sep 20263312 PMAQI
9th Sep 2026361 PMAQI
9th Sep 2026332 PMAQI
9th Sep 2026463 PMAQI
9th Sep 2026534 PMAQI
9th Sep 2026345 PMAQI
9th Sep 2026256 PMAQI
9th Sep 2026247 PMAQI
9th Sep 2026238 PMAQI
9th Sep 2026279 PMAQI
9th Sep 20262310 PMAQI
9th Sep 20262311 PMAQI
10th Sep 20262512 AMAQI
10th Sep 2026231 AMAQI
10th Sep 2026272 AMAQI
10th Sep 2026253 AMAQI
10th Sep 2026254 AMAQI

27°C21/31°C

10th Sep 2026215 AMAQI
10th Sep 2026296 AMAQI
10th Sep 2026257 AMAQI
10th Sep 2026258 AMAQI
10th Sep 2026239 AMAQI
10th Sep 20262110 AMAQI
10th Sep 20262111 AMAQI
10th Sep 20262112 PMAQI
10th Sep 2026251 PMAQI
10th Sep 2026232 PMAQI
10th Sep 2026213 PMAQI
10th Sep 2026254 PMAQI
10th Sep 2026255 PMAQI
10th Sep 2026256 PMAQI
10th Sep 2026257 PMAQI
10th Sep 2026258 PMAQI
10th Sep 2026259 PMAQI
10th Sep 20262510 PMAQI
10th Sep 20262511 PMAQI
11th Sep 20262312 AMAQI
11th Sep 2026211 AMAQI
11th Sep 2026232 AMAQI
11th Sep 2026253 AMAQI
11th Sep 2026254 AMAQI

20°C19/21°C

11th Sep 2026255 AMAQI
11th Sep 2026236 AMAQI
11th Sep 2026217 AMAQI
11th Sep 2026238 AMAQI
11th Sep 2026279 AMAQI
11th Sep 20262510 AMAQI
11th Sep 20262511 AMAQI
11th Sep 20262512 PMAQI
11th Sep 2026251 PMAQI
11th Sep 2026252 PMAQI
11th Sep 2026253 PMAQI
11th Sep 2026274 PMAQI
11th Sep 2026275 PMAQI
11th Sep 2026256 PMAQI
11th Sep 2026257 PMAQI
11th Sep 2026258 PMAQI
11th Sep 2026219 PMAQI
11th Sep 20262710 PMAQI
11th Sep 20262111 PMAQI
12th Sep 20262112 AMAQI
12th Sep 2026211 AMAQI
12th Sep 2026232 AMAQI
12th Sep 2026273 AMAQI
12th Sep 2026254 AMAQI

19°C19/20°C

12th Sep 2026235 AMAQI
12th Sep 2026216 AMAQI
12th Sep 2026237 AMAQI
12th Sep 2026258 AMAQI
12th Sep 2026219 AMAQI
12th Sep 20262110 AMAQI
12th Sep 20262311 AMAQI
12th Sep 20262112 PMAQI
12th Sep 2026251 PMAQI
12th Sep 2026232 PMAQI
12th Sep 2026213 PMAQI
12th Sep 2026214 PMAQI
12th Sep 2026215 PMAQI
12th Sep 2026256 PMAQI
12th Sep 2026257 PMAQI
12th Sep 2026258 PMAQI
12th Sep 2026259 PMAQI
12th Sep 20262510 PMAQI
12th Sep 20262511 PMAQI
13th Sep 20262112 AMAQI
13th Sep 2026251 AMAQI
13th Sep 2026252 AMAQI
13th Sep 2026253 AMAQI
13th Sep 2026254 AMAQI

21°C20/22°C

13th Sep 2026256 AMAQI
13th Sep 2026257 AMAQI
13th Sep 2026218 AMAQI
13th Sep 2026259 AMAQI
13th Sep 20262510 AMAQI
13th Sep 20262511 AMAQI
13th Sep 20262512 PMAQI
13th Sep 2026251 PMAQI
13th Sep 2026252 PMAQI
13th Sep 2026213 PMAQI
13th Sep 2026214 PMAQI
13th Sep 2026525 PMAQI
13th Sep 2026276 PMAQI
13th Sep 2026567 PMAQI
13th Sep 2026588 PMAQI
13th Sep 2026549 PMAQI
13th Sep 20265410 PMAQI
13th Sep 20263611 PMAQI
14th Sep 20262712 AMAQI
14th Sep 2026251 AMAQI
14th Sep 2026252 AMAQI
14th Sep 2026233 AMAQI
14th Sep 2026234 AMAQI

23°C21/26°C

14th Sep 2026255 AMAQI
14th Sep 2026236 AMAQI
14th Sep 2026217 AMAQI
14th Sep 2026218 AMAQI
14th Sep 2026219 AMAQI
14th Sep 20262110 AMAQI
14th Sep 20262711 AMAQI
14th Sep 20262512 PMAQI
14th Sep 2026251 PMAQI
14th Sep 2026252 PMAQI
14th Sep 2026253 PMAQI
14th Sep 2026214 PMAQI
14th Sep 2026255 PMAQI
14th Sep 2026236 PMAQI
14th Sep 2026237 PMAQI
14th Sep 2026218 PMAQI
14th Sep 2026219 PMAQI
14th Sep 20262310 PMAQI
14th Sep 20262111 PMAQI
15th Sep 20262312 AMAQI
15th Sep 2026211 AMAQI
15th Sep 2026212 AMAQI
15th Sep 2026213 AMAQI
15th Sep 2026254 AMAQI

26°C24/29°C

15th Sep 2026215 AMAQI
15th Sep 2026216 AMAQI
15th Sep 2026217 AMAQI
15th Sep 2026238 AMAQI
15th Sep 2026219 AMAQI
15th Sep 20262910 AMAQI
15th Sep 20262511 AMAQI
15th Sep 20262912 PMAQI
15th Sep 2026271 PMAQI
15th Sep 2026212 PMAQI
15th Sep 2026253 PMAQI
15th Sep 2026234 PMAQI
15th Sep 2026215 PMAQI
15th Sep 2026236 PMAQI
15th Sep 2026237 PMAQI
15th Sep 2026258 PMAQI
15th Sep 2026259 PMAQI
15th Sep 20262310 PMAQI
15th Sep 20262511 PMAQI
16th Sep 20262512 AMAQI
16th Sep 2026231 AMAQI
16th Sep 2026232 AMAQI
16th Sep 2026403 AMAQI
16th Sep 2026254 AMAQI

23°C22/25°C

16th Sep 2026335 AMAQI
16th Sep 2026256 AMAQI
16th Sep 2026297 AMAQI
16th Sep 2026298 AMAQI
16th Sep 2026239 AMAQI
16th Sep 20261910 AMAQI
16th Sep 20261711 AMAQI
16th Sep 20261912 PMAQI
16th Sep 2026191 PMAQI
16th Sep 2026212 PMAQI
16th Sep 2026213 PMAQI
16th Sep 2026254 PMAQI
16th Sep 2026275 PMAQI
16th Sep 2026126 PMAQI
16th Sep 2026147 PMAQI
16th Sep 2026218 PMAQI
16th Sep 2026259 PMAQI
16th Sep 20262510 PMAQI
16th Sep 20262111 PMAQI
17th Sep 20262112 AMAQI
17th Sep 2026291 AMAQI
17th Sep 2026252 AMAQI
17th Sep 2026213 AMAQI
17th Sep 2026214 AMAQI

21°C20/22°C

17th Sep 2026255 AMAQI
17th Sep 2026256 AMAQI
17th Sep 202687 AMAQI
17th Sep 2026218 AMAQI
17th Sep 2026259 AMAQI
17th Sep 20262510 AMAQI
17th Sep 20262511 AMAQI
17th Sep 20262512 PMAQI
17th Sep 2026231 PMAQI
17th Sep 2026212 PMAQI
17th Sep 2026253 PMAQI
17th Sep 2026254 PMAQI
17th Sep 2026255 PMAQI
17th Sep 2026256 PMAQI
17th Sep 2026217 PMAQI
17th Sep 2026218 PMAQI
17th Sep 2026239 PMAQI
17th Sep 20262310 PMAQI
17th Sep 20262111 PMAQI
18th Sep 20262112 AMAQI
18th Sep 2026251 AMAQI
18th Sep 2026252 AMAQI
18th Sep 2026253 AMAQI
18th Sep 2026254 AMAQI

21°C19/22°C

18th Sep 2026235 AMAQI
18th Sep 2026236 AMAQI
18th Sep 2026257 AMAQI
18th Sep 2026258 AMAQI
18th Sep 2026259 AMAQI
18th Sep 20262510 AMAQI
18th Sep 20262111 AMAQI
18th Sep 20262512 PMAQI
18th Sep 2026251 PMAQI
18th Sep 2026272 PMAQI
18th Sep 2026233 PMAQI
18th Sep 2026254 PMAQI
18th Sep 2026255 PMAQI
18th Sep 2026256 PMAQI
18th Sep 2026257 PMAQI
18th Sep 2026218 PMAQI
18th Sep 2026299 PMAQI
18th Sep 20262110 PMAQI
18th Sep 20262911 PMAQI
19th Sep 20262312 AMAQI
19th Sep 2026251 AMAQI
19th Sep 2026272 AMAQI
19th Sep 2026253 AMAQI
19th Sep 2026214 AMAQI

21°C19/23°C

19th Sep 2026255 AMAQI
19th Sep 2026216 AMAQI
19th Sep 2026257 AMAQI
19th Sep 2026258 AMAQI
19th Sep 2026259 AMAQI
19th Sep 20262510 AMAQI
19th Sep 20262711 AMAQI
19th Sep 20262312 PMAQI
19th Sep 2026271 PMAQI
19th Sep 2026252 PMAQI
19th Sep 2026253 PMAQI
19th Sep 2026254 PMAQI
19th Sep 2026235 PMAQI
19th Sep 2026276 PMAQI
19th Sep 2026277 PMAQI
19th Sep 2026258 PMAQI
19th Sep 2026219 PMAQI
19th Sep 20262310 PMAQI
19th Sep 20262111 PMAQI
20th Sep 20262512 AMAQI
20th Sep 2026231 AMAQI
20th Sep 2026232 AMAQI
20th Sep 2026213 AMAQI
20th Sep 2026254 AMAQI

23°C21/26°C

20th Sep 2026255 AMAQI
20th Sep 2026216 AMAQI
20th Sep 2026257 AMAQI
20th Sep 2026258 AMAQI
20th Sep 2026219 AMAQI
20th Sep 20262710 AMAQI
20th Sep 20262711 AMAQI
20th Sep 20262312 PMAQI
20th Sep 2026251 PMAQI
20th Sep 2026122 PMAQI
20th Sep 2026143 PMAQI
20th Sep 2026214 PMAQI
20th Sep 2026215 PMAQI
20th Sep 2026256 PMAQI
20th Sep 2026257 PMAQI
20th Sep 2026218 PMAQI
20th Sep 2026259 PMAQI
20th Sep 20261010 PMAQI
20th Sep 20262511 PMAQI
21st Sep 20261012 AMAQI
21st Sep 2026101 AMAQI
21st Sep 202682 AMAQI
21st Sep 2026163 AMAQI
21st Sep 2026104 AMAQI

22°C21/23°C

21st Sep 2026105 AMAQI
21st Sep 2026106 AMAQI
21st Sep 2026107 AMAQI
21st Sep 202688 AMAQI
21st Sep 202689 AMAQI
21st Sep 2026810 AMAQI
21st Sep 2026811 AMAQI
21st Sep 2026812 PMAQI
21st Sep 2026141 PMAQI
21st Sep 2026192 PMAQI
21st Sep 2026213 PMAQI
21st Sep 2026254 PMAQI
21st Sep 2026175 PMAQI
21st Sep 2026146 PMAQI
21st Sep 2026177 PMAQI
21st Sep 2026148 PMAQI
21st Sep 2026149 PMAQI
21st Sep 20261710 PMAQI
21st Sep 20261411 PMAQI
22nd Sep 20261212 AMAQI
22nd Sep 202681 AMAQI
22nd Sep 2026332 AMAQI
22nd Sep 2026543 AMAQI
22nd Sep 2026534 AMAQI

23°C21/26°C

22nd Sep 2026425 AMAQI
22nd Sep 2026236 AMAQI
22nd Sep 2026237 AMAQI
22nd Sep 2026198 AMAQI
22nd Sep 2026179 AMAQI
22nd Sep 20262110 AMAQI
22nd Sep 20262111 AMAQI
22nd Sep 20262512 PMAQI
22nd Sep 2026291 PMAQI
22nd Sep 2026232 PMAQI
22nd Sep 2026253 PMAQI
22nd Sep 2026274 PMAQI
22nd Sep 2026215 PMAQI
22nd Sep 2026216 PMAQI
22nd Sep 2026337 PMAQI
22nd Sep 2026258 PMAQI
22nd Sep 2026259 PMAQI
22nd Sep 20262710 PMAQI
22nd Sep 20262511 PMAQI
23rd Sep 20262912 AMAQI
23rd Sep 2026211 AMAQI
23rd Sep 2026232 AMAQI
23rd Sep 2026213 AMAQI
23rd Sep 2026254 AMAQI

26°C24/30°C

23rd Sep 2026255 AMAQI
23rd Sep 2026236 AMAQI
23rd Sep 2026237 AMAQI
23rd Sep 2026258 AMAQI
23rd Sep 2026239 AMAQI
23rd Sep 20262510 AMAQI
23rd Sep 20262311 AMAQI
23rd Sep 20262512 PMAQI
23rd Sep 2026231 PMAQI
23rd Sep 2026252 PMAQI
23rd Sep 2026213 PMAQI
23rd Sep 2026254 PMAQI
23rd Sep 2026255 PMAQI
23rd Sep 2026256 PMAQI
23rd Sep 2026217 PMAQI
23rd Sep 2026298 PMAQI
23rd Sep 2026219 PMAQI
23rd Sep 20262110 PMAQI
23rd Sep 20262111 PMAQI
24th Sep 20262512 AMAQI
24th Sep 2026211 AMAQI
24th Sep 2026252 AMAQI
24th Sep 2026233 AMAQI
24th Sep 2026214 AMAQI

22°C21/23°C

24th Sep 2026255 AMAQI
24th Sep 2026216 AMAQI
24th Sep 2026217 AMAQI
24th Sep 2026278 AMAQI
24th Sep 2026239 AMAQI
24th Sep 20262310 AMAQI
24th Sep 20262311 AMAQI
24th Sep 20262312 PMAQI
24th Sep 2026251 PMAQI
24th Sep 2026232 PMAQI
24th Sep 2026213 PMAQI
24th Sep 2026294 PMAQI
24th Sep 2026215 PMAQI
24th Sep 2026216 PMAQI
24th Sep 2026217 PMAQI
24th Sep 2026258 PMAQI
24th Sep 2026409 PMAQI
24th Sep 20264810 PMAQI
24th Sep 20263311 PMAQI
25th Sep 20263812 AMAQI
25th Sep 2026311 AMAQI
25th Sep 2026292 AMAQI
25th Sep 2026313 AMAQI
25th Sep 2026314 AMAQI

24°C20/29°C

25th Sep 2026335 AMAQI
25th Sep 2026336 AMAQI
25th Sep 2026317 AMAQI
25th Sep 2026298 AMAQI
25th Sep 2026279 AMAQI
25th Sep 20262510 AMAQI
25th Sep 20262711 AMAQI
25th Sep 20262912 PMAQI
25th Sep 2026311 PMAQI
25th Sep 2026292 PMAQI
25th Sep 2026313 PMAQI
25th Sep 2026314 PMAQI
25th Sep 2026295 PMAQI
25th Sep 2026316 PMAQI
25th Sep 2026257 PMAQI
25th Sep 2026278 PMAQI
25th Sep 2026259 PMAQI
25th Sep 20262510 PMAQI
25th Sep 20262311 PMAQI
26th Sep 20262312 AMAQI
26th Sep 2026231 AMAQI
26th Sep 2026252 AMAQI
26th Sep 2026233 AMAQI
26th Sep 2026214 AMAQI

24°C21/26°C

26th Sep 2026215 AMAQI
26th Sep 2026216 AMAQI
26th Sep 2026217 AMAQI
26th Sep 2026238 AMAQI
26th Sep 2026219 AMAQI
26th Sep 20262310 AMAQI
26th Sep 20262311 AMAQI
26th Sep 20262112 PMAQI
26th Sep 2026231 PMAQI
26th Sep 2026252 PMAQI
26th Sep 2026253 PMAQI
26th Sep 2026214 PMAQI
26th Sep 2026255 PMAQI
26th Sep 2026236 PMAQI
26th Sep 2026257 PMAQI
26th Sep 2026258 PMAQI
26th Sep 2026259 PMAQI
26th Sep 20262510 PMAQI
26th Sep 20262111 PMAQI
27th Sep 20262112 AMAQI
27th Sep 2026251 AMAQI
27th Sep 2026232 AMAQI
27th Sep 2026293 AMAQI
27th Sep 2026294 AMAQI

19°C17/22°C

27th Sep 2026275 AMAQI
27th Sep 2026216 AMAQI
27th Sep 2026257 AMAQI
27th Sep 2026258 AMAQI
27th Sep 2026279 AMAQI
27th Sep 20262510 AMAQI
27th Sep 20262511 AMAQI
27th Sep 20262712 PMAQI
27th Sep 2026251 PMAQI
27th Sep 2026212 PMAQI
27th Sep 2026253 PMAQI
27th Sep 2026214 PMAQI
27th Sep 2026255 PMAQI
27th Sep 2026216 PMAQI
27th Sep 2026237 PMAQI
27th Sep 2026218 PMAQI
27th Sep 2026219 PMAQI
27th Sep 20262110 PMAQI
27th Sep 20262111 PMAQI
28th Sep 20262112 AMAQI
28th Sep 2026251 AMAQI
28th Sep 2026272 AMAQI
28th Sep 2026293 AMAQI
28th Sep 2026294 AMAQI

21°C18/24°C

28th Sep 2026295 AMAQI
28th Sep 2026316 AMAQI
28th Sep 2026347 AMAQI
28th Sep 2026338 AMAQI
28th Sep 2026339 AMAQI
28th Sep 20263310 AMAQI
28th Sep 20264211 AMAQI
28th Sep 20263812 PMAQI
28th Sep 2026381 PMAQI
28th Sep 2026422 PMAQI
28th Sep 2026333 PMAQI
28th Sep 2026334 PMAQI
28th Sep 2026315 PMAQI
28th Sep 2026296 PMAQI
28th Sep 2026317 PMAQI
28th Sep 2026318 PMAQI
28th Sep 2026299 PMAQI
28th Sep 20263310 PMAQI
28th Sep 20263311 PMAQI
29th Sep 20263312 AMAQI
29th Sep 2026361 AMAQI
29th Sep 2026312 AMAQI
29th Sep 2026293 AMAQI
29th Sep 2026314 AMAQI

23°C21/26°C

29th Sep 2026295 AMAQI
29th Sep 2026276 AMAQI
29th Sep 2026297 AMAQI
29th Sep 2026298 AMAQI
29th Sep 2026259 AMAQI
29th Sep 20262310 AMAQI
29th Sep 20262311 AMAQI
29th Sep 20262312 PMAQI
29th Sep 2026251 PMAQI
29th Sep 2026252 PMAQI
29th Sep 2026273 PMAQI
29th Sep 2026254 PMAQI
29th Sep 2026235 PMAQI
29th Sep 2026236 PMAQI
29th Sep 2026257 PMAQI
29th Sep 2026238 PMAQI
29th Sep 2026239 PMAQI
29th Sep 20262110 PMAQI
29th Sep 20262111 PMAQI
30th Sep 20262112 AMAQI
30th Sep 2026211 AMAQI
30th Sep 2026212 AMAQI
30th Sep 2026233 AMAQI
30th Sep 2026214 AMAQI

20°C18/22°C

30th Sep 2026235 AMAQI
30th Sep 2026236 AMAQI
30th Sep 2026237 AMAQI
30th Sep 2026258 AMAQI
30th Sep 2026259 AMAQI
30th Sep 20262110 AMAQI
30th Sep 20262111 AMAQI
30th Sep 20262312 PMAQI
30th Sep 2026231 PMAQI
30th Sep 2026232 PMAQI
30th Sep 2026253 PMAQI
30th Sep 2026234 PMAQI
30th Sep 2026215 PMAQI
30th Sep 2026216 PMAQI
30th Sep 2026257 PMAQI
30th Sep 2026218 PMAQI
30th Sep 2026219 PMAQI
30th Sep 20262710 PMAQI
30th Sep 20262111 PMAQI
1st Oct 20262112 AMAQI
1st Oct 2026211 AMAQI
1st Oct 2026212 AMAQI
1st Oct 2026233 AMAQI
1st Oct 2026254 AMAQI

19°C18/19°C

1st Oct 2026215 AMAQI
1st Oct 2026236 AMAQI
1st Oct 2026297 AMAQI
1st Oct 2026218 AMAQI
1st Oct 2026279 AMAQI
1st Oct 20262510 AMAQI
1st Oct 20262111 AMAQI
1st Oct 20262312 PMAQI
1st Oct 2026231 PMAQI
1st Oct 2026232 PMAQI
1st Oct 2026253 PMAQI
1st Oct 2026254 PMAQI
1st Oct 2026255 PMAQI
1st Oct 2026216 PMAQI
1st Oct 2026257 PMAQI
1st Oct 2026258 PMAQI
1st Oct 2026259 PMAQI
1st Oct 20262110 PMAQI
1st Oct 20262111 PMAQI
2nd Oct 20262112 AMAQI
2nd Oct 2026211 AMAQI
2nd Oct 2026212 AMAQI
2nd Oct 2026213 AMAQI
2nd Oct 2026214 AMAQI

21°C19/25°C

2nd Oct 2026215 AMAQI
2nd Oct 2026216 AMAQI
2nd Oct 2026217 AMAQI
2nd Oct 2026238 AMAQI
2nd Oct 2026259 AMAQI
2nd Oct 20262310 AMAQI
2nd Oct 20262111 AMAQI
2nd Oct 20262112 PMAQI
2nd Oct 2026211 PMAQI
2nd Oct 2026212 PMAQI
2nd Oct 2026253 PMAQI
2nd Oct 2026254 PMAQI
2nd Oct 2026215 PMAQI
2nd Oct 2026236 PMAQI
2nd Oct 2026257 PMAQI
2nd Oct 2026258 PMAQI
2nd Oct 2026239 PMAQI
2nd Oct 20262510 PMAQI
2nd Oct 20262511 PMAQI
3rd Oct 20262512 AMAQI
3rd Oct 2026211 AMAQI
3rd Oct 2026212 AMAQI
3rd Oct 2026213 AMAQI
3rd Oct 2026234 AMAQI

19°C17/22°C

3rd Oct 2026255 AMAQI
5 AM
3rd Oct 2026276 AMAQI
3rd Oct 2026217 AMAQI
3rd Oct 2026258 AMAQI
3rd Oct 2026259 AMAQI
3rd Oct 20262310 AMAQI
3rd Oct 20262511 AMAQI
11 AM
3rd Oct 20262312 PMAQI
3rd Oct 2026211 PMAQI
3rd Oct 2026212 PMAQI
3rd Oct 2026213 PMAQI
3rd Oct 2026214 PMAQI
3rd Oct 2026235 PMAQI
5 PM
3rd Oct 2026216 PMAQI
3rd Oct 2026297 PMAQI
3rd Oct 2026258 PMAQI
3rd Oct 2026259 PMAQI
3rd Oct 20262910 PMAQI
3rd Oct 20262511 PMAQI
11 PM
4 AM

20°C18/24°C

Day time
Avg. Highest Time
3 PM

26AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM

23AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 3 PM (Avg. 26), while the lowest AQI was between 6 AM to 6 AM (Avg. 23).
Night time
Avg. Highest Time
10 PM

26AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM

23AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 26), while the lowest AQI was between 1 AM to 1 AM (Avg. 23).

2026 Days Vs Air Quality

Hinode, Honcho, Chiba, Japan

2026

90%

248

10%

28

Total number of days with different AQI categories in last 276 days in 2026 (89 days remaining)

Good
248 Days
Moderate
28 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2026, 90% of 276 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Hinode, Honcho, 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)
2nd January 2026
24AQI (US)
3rd January 2026
15AQI (US)
4th January 2026
28AQI (US)
5th January 2026
45AQI (US)
6th January 2026
21AQI (US)
7th January 2026
32AQI (US)
8th January 2026
38AQI (US)
9th January 2026
15AQI (US)
10th January 2026
29AQI (US)
11th January 2026
32AQI (US)
12th January 2026
21AQI (US)
13th January 2026
37AQI (US)
14th January 2026
15AQI (US)
15th January 2026
30AQI (US)
16th January 2026
48AQI (US)
17th January 2026
56AQI (US)
18th January 2026
30AQI (US)
19th January 2026
43AQI (US)
20th January 2026
37AQI (US)
21st January 2026
14AQI (US)
22nd January 2026
23AQI (US)
23rd January 2026
39AQI (US)
24th January 2026
40AQI (US)
25th January 2026
38AQI (US)
26th January 2026
17AQI (US)
27th January 2026
36AQI (US)
28th January 2026
38AQI (US)
29th January 2026
18AQI (US)
30th January 2026
22AQI (US)
31st January 2026
39AQI (US)
1st February 2026
37AQI (US)
2nd February 2026
47AQI (US)
3rd February 2026
29AQI (US)
4th February 2026
39AQI (US)
5th February 2026
66AQI (US)
6th February 2026
73AQI (US)
7th February 2026
13AQI (US)
8th February 2026
9AQI (US)
9th February 2026
35AQI (US)
10th February 2026
42AQI (US)
11th February 2026
45AQI (US)
12th February 2026
29AQI (US)
13th February 2026
46AQI (US)
14th February 2026
57AQI (US)
15th February 2026
59AQI (US)
16th February 2026
48AQI (US)
17th February 2026
17AQI (US)
18th February 2026
33AQI (US)
19th February 2026
15AQI (US)
20th February 2026
24AQI (US)
21st February 2026
46AQI (US)
22nd February 2026
46AQI (US)
23rd February 2026
32AQI (US)
24th February 2026
44AQI (US)
25th February 2026
33AQI (US)
26th February 2026
25AQI (US)
27th February 2026
42AQI (US)
28th February 2026
39AQI (US)
1st March 2026
32AQI (US)
2nd March 2026
59AQI (US)
3rd March 2026
41AQI (US)
4th March 2026
48AQI (US)
5th March 2026
49AQI (US)
6th March 2026
49AQI (US)
7th March 2026
41AQI (US)
8th March 2026
33AQI (US)
9th March 2026
42AQI (US)
10th March 2026
57AQI (US)
11th March 2026
54AQI (US)
12th March 2026
62AQI (US)
13th March 2026
36AQI (US)
14th March 2026
45AQI (US)
15th March 2026
56AQI (US)
16th March 2026
47AQI (US)
17th March 2026
46AQI (US)
18th March 2026
50AQI (US)
19th March 2026
36AQI (US)
20th March 2026
28AQI (US)
21st March 2026
41AQI (US)
22nd March 2026
48AQI (US)
23rd March 2026
46AQI (US)
24th March 2026
43AQI (US)
25th March 2026
61AQI (US)
26th March 2026
29AQI (US)
27th March 2026
27AQI (US)
28th March 2026
51AQI (US)
29th March 2026
52AQI (US)
30th March 2026
53AQI (US)
31st March 2026
30AQI (US)
1st April 2026
23AQI (US)
2nd April 2026
30AQI (US)
3rd April 2026
44AQI (US)
4th April 2026
46AQI (US)
5th April 2026
37AQI (US)
6th April 2026
29AQI (US)
7th April 2026
28AQI (US)
8th April 2026
21AQI (US)
9th April 2026
30AQI (US)
10th April 2026
48AQI (US)
11th April 2026
39AQI (US)
12th April 2026
25AQI (US)
13th April 2026
36AQI (US)
14th April 2026
31AQI (US)
15th April 2026
34AQI (US)
16th April 2026
34AQI (US)
17th April 2026
34AQI (US)
18th April 2026
30AQI (US)
19th April 2026
32AQI (US)
20th April 2026
31AQI (US)
21st April 2026
34AQI (US)
22nd April 2026
45AQI (US)
23rd April 2026
37AQI (US)
24th April 2026
31AQI (US)
25th April 2026
45AQI (US)
26th April 2026
51AQI (US)
27th April 2026
48AQI (US)
28th April 2026
43AQI (US)
29th April 2026
39AQI (US)
30th April 2026
35AQI (US)
1st May 2026
46AQI (US)
2nd May 2026
48AQI (US)
3rd May 2026
44AQI (US)
4th May 2026
30AQI (US)
5th May 2026
22AQI (US)
6th May 2026
29AQI (US)
7th May 2026
29AQI (US)
8th May 2026
26AQI (US)
9th May 2026
26AQI (US)
10th May 2026
29AQI (US)
11th May 2026
29AQI (US)
12th May 2026
34AQI (US)
13th May 2026
39AQI (US)
14th May 2026
33AQI (US)
15th May 2026
33AQI (US)
16th May 2026
86AQI (US)
17th May 2026
69AQI (US)
18th May 2026
54AQI (US)
19th May 2026
49AQI (US)
20th May 2026
61AQI (US)
21st May 2026
59AQI (US)
22nd May 2026
61AQI (US)
23rd May 2026
53AQI (US)
24th May 2026
58AQI (US)
25th May 2026
46AQI (US)
26th May 2026
39AQI (US)
27th May 2026
24AQI (US)
28th May 2026
26AQI (US)
29th May 2026
25AQI (US)
30th May 2026
23AQI (US)
31st May 2026
27AQI (US)
1st June 2026
30AQI (US)
2nd June 2026
29AQI (US)
3rd June 2026
15AQI (US)
4th June 2026
22AQI (US)
5th June 2026
21AQI (US)
6th June 2026
21AQI (US)
7th June 2026
22AQI (US)
8th June 2026
20AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
23AQI (US)
12th June 2026
24AQI (US)
13th June 2026
39AQI (US)
14th June 2026
41AQI (US)
15th June 2026
12AQI (US)
16th June 2026
24AQI (US)
17th June 2026
24AQI (US)
18th June 2026
24AQI (US)
19th June 2026
25AQI (US)
20th June 2026
23AQI (US)
21st June 2026
20AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
22AQI (US)
25th June 2026
26AQI (US)
26th June 2026
29AQI (US)
27th June 2026
26AQI (US)
28th June 2026
26AQI (US)
29th June 2026
25AQI (US)
30th June 2026
23AQI (US)
1st July 2026
35AQI (US)
2nd July 2026
23AQI (US)
3rd July 2026
18AQI (US)
4th July 2026
38AQI (US)
5th July 2026
20AQI (US)
6th July 2026
26AQI (US)
7th July 2026
25AQI (US)
8th July 2026
24AQI (US)
9th July 2026
25AQI (US)
10th July 2026
24AQI (US)
11th July 2026
22AQI (US)
12th July 2026
27AQI (US)
13th July 2026
36AQI (US)
14th July 2026
47AQI (US)
15th July 2026
49AQI (US)
16th July 2026
71AQI (US)
17th July 2026
54AQI (US)
18th July 2026
24AQI (US)
19th July 2026
18AQI (US)
20th July 2026
29AQI (US)
21st July 2026
47AQI (US)
22nd July 2026
66AQI (US)
23rd July 2026
60AQI (US)
24th July 2026
36AQI (US)
25th July 2026
37AQI (US)
26th July 2026
33AQI (US)
27th July 2026
28AQI (US)
28th July 2026
27AQI (US)
29th July 2026
35AQI (US)
30th July 2026
36AQI (US)
31st July 2026
46AQI (US)
1st August 2026
64AQI (US)
2nd August 2026
47AQI (US)
3rd August 2026
17AQI (US)
4th August 2026
22AQI (US)
5th August 2026
22AQI (US)
6th August 2026
24AQI (US)
7th August 2026
24AQI (US)
8th August 2026
23AQI (US)
9th August 2026
25AQI (US)
10th August 2026
23AQI (US)
11th August 2026
29AQI (US)
12th August 2026
23AQI (US)
13th August 2026
26AQI (US)
14th August 2026
23AQI (US)
15th August 2026
25AQI (US)
16th August 2026
25AQI (US)
17th August 2026
23AQI (US)
18th August 2026
25AQI (US)
19th August 2026
24AQI (US)
20th August 2026
30AQI (US)
21st August 2026
23AQI (US)
22nd August 2026
23AQI (US)
23rd August 2026
32AQI (US)
24th August 2026
35AQI (US)
25th August 2026
31AQI (US)
26th August 2026
41AQI (US)
27th August 2026
27AQI (US)
28th August 2026
27AQI (US)
29th August 2026
25AQI (US)
30th August 2026
26AQI (US)
31st August 2026
24AQI (US)
1st September 2026
24AQI (US)
2nd September 2026
30AQI (US)
3rd September 2026
25AQI (US)
4th September 2026
22AQI (US)
5th September 2026
23AQI (US)
6th September 2026
24AQI (US)
7th September 2026
18AQI (US)
8th September 2026
29AQI (US)
9th September 2026
35AQI (US)
10th September 2026
24AQI (US)
11th September 2026
24AQI (US)
12th September 2026
23AQI (US)
13th September 2026
31AQI (US)
14th September 2026
23AQI (US)
15th September 2026
23AQI (US)
16th September 2026
23AQI (US)
17th September 2026
23AQI (US)
18th September 2026
24AQI (US)
19th September 2026
24AQI (US)
20th September 2026
22AQI (US)
21st September 2026
13AQI (US)
22nd September 2026
26AQI (US)
23rd September 2026
24AQI (US)
24th September 2026
25AQI (US)
25th September 2026
29AQI (US)
26th September 2026
23AQI (US)
27th September 2026
24AQI (US)
28th September 2026
32AQI (US)
29th September 2026
26AQI (US)
30th September 2026
23AQI (US)
1st October 2026
23AQI (US)
2nd October 2026
22AQI (US)
3rd October 2026
24AQI (US)
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

30AQI (US)

38AQI (US)

45AQI (US)

36AQI (US)

41AQI (US)

24AQI (US)

35AQI (US)

28AQI (US)

25AQI (US)

23AQI (US)

No. of days

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

202633AQI (US)

30
1
24
4
22
9
29
1
23
8
30
27
4
30
1
30
3
248
28

Highest AQI (US) recorded in

March

45AQI (US)

Lowest AQI (US) recorded in

October

23AQI (US)

202541AQI (US)

28
3
27
1
22
9
29
1
30
1
28
2
23
8
18
13
29
1
18
13
18
12
17
14
287
78

Highest AQI (US) recorded in

November

49AQI (US)

Lowest AQI (US) recorded in

May

33AQI (US)

202439AQI (US)

26
5
28
1
25
6
22
8
27
4
28
2
12
19
29
2
27
3
30
1
27
3
30
1
311
55

Highest AQI (US) recorded in

July

55AQI (US)

Lowest AQI (US) recorded in

October

33AQI (US)

202340AQI (US)

24
6
25
3
28
3
23
7
26
5
20
10
23
8
28
3
29
1
28
3
20
9
23
7
297
65

Highest AQI (US) recorded in

April

46AQI (US)

Lowest AQI (US) recorded in

August

31AQI (US)

202240AQI (US)

27
4
17
4
25
6
21
9
25
6
21
9
19
3
1
27
1
25
6
22
8
27
2
257
58

Highest AQI (US) recorded in

March

44AQI (US)

Lowest AQI (US) recorded in

September

33AQI (US)

202135AQI (US)

23
6
26
2
29
2
29
1
26
5
27
3
27
4
28
3
29
1
29
2
26
4
20
9
319
42

Highest AQI (US) recorded in

December

43AQI (US)

Lowest AQI (US) recorded in

February

29AQI (US)

202034AQI (US)

11
2
18
3
18
25
5
30
1
19
12
18
1
29
2
25
3
28
3
221
32

Highest AQI (US) recorded in

August

46AQI (US)

Lowest AQI (US) recorded in

October

27AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
41AQI (US)
Least Polluted Year Recorded
2026(Avg.)
33AQI (US)

Hinode's annual 2026 AQI (US) (33) shows an average percentage change of -13.09% (improved AQI (US)) compared to previous years: 2020 (34), 2021 (35), 2022 (40), 2023 (40), 2024 (39), 2025 (41).