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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Hanamigawa, Yachiyo, Chiba, Japan Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

August Air Quality Analysis

Hanamigawa, Yachiyo, Chiba, Japan

2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2026
63AQI
Lowest AQI recorded on
8th Aug 2024
18AQI

Same Day Analysis (18th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 3rd highest AQI at 34 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 17th Aug - 18th Aug 2026

Hanamigawa, Yachiyo, Chiba, Japan

AQI
Day
Night
.

4 AM17th Aug 2026

6 PM

3 AM18th Aug 2026

Day time
Avg. Highest Time
12PM17th Aug

50AQI

Avg. Lowest Time
3PM17th Aug

23AQI

Night time
Avg. Highest Time
3AM18th Aug

45AQI

Avg. Lowest Time
7PM17th Aug

23AQI

In the last 24 hours,

Hanamigawa's AQI reached its highest point of 50 at 12 PM during the Day, while the lowest point, 23, was recorded at 7 PM during the Night between 17th Aug and 18th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Hanamigawa, Yachiyo, Chiba, Japan

JulAug
20th - 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 - 16th16th - 17th17th - 18th18th
Day
Night
20th Jul 2026514 AMAQI
20th Jul 2026585 AMAQI
20th Jul 2026556 AMAQI
20th Jul 2026547 AMAQI
20th Jul 2026448 AMAQI
20th Jul 2026489 AMAQI
20th Jul 20267010 AMAQI
20th Jul 20266011 AMAQI
20th Jul 20266012 PMAQI
20th Jul 2026531 PMAQI
20th Jul 2026422 PMAQI
20th Jul 2026583 PMAQI
20th Jul 2026624 PMAQI
20th Jul 2026515 PMAQI
20th Jul 2026466 PMAQI
20th Jul 2026487 PMAQI
20th Jul 2026488 PMAQI
20th Jul 2026469 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20263811 PMAQI
21st Jul 20263612 AMAQI
21st Jul 2026311 AMAQI
21st Jul 2026332 AMAQI
21st Jul 2026333 AMAQI

29°C25/34°C

21st Jul 2026364 AMAQI
21st Jul 2026385 AMAQI
21st Jul 2026366 AMAQI
21st Jul 2026337 AMAQI
21st Jul 2026318 AMAQI
21st Jul 2026369 AMAQI
21st Jul 20266010 AMAQI
21st Jul 20265511 AMAQI
21st Jul 2026581 PMAQI
21st Jul 2026582 PMAQI
21st Jul 2026673 PMAQI
21st Jul 2026644 PMAQI
21st Jul 2026605 PMAQI
21st Jul 2026576 PMAQI
21st Jul 2026917 PMAQI
21st Jul 2026528 PMAQI
21st Jul 2026509 PMAQI
21st Jul 20265110 PMAQI
21st Jul 20265611 PMAQI
22nd Jul 20265712 AMAQI
22nd Jul 2026571 AMAQI
22nd Jul 2026652 AMAQI
22nd Jul 2026633 AMAQI

30°C26/35°C

22nd Jul 2026624 AMAQI
22nd Jul 2026635 AMAQI
22nd Jul 2026586 AMAQI
22nd Jul 2026607 AMAQI
22nd Jul 2026628 AMAQI
22nd Jul 2026689 AMAQI
22nd Jul 20266610 AMAQI
22nd Jul 20266911 AMAQI
22nd Jul 20267412 PMAQI
22nd Jul 2026751 PMAQI
22nd Jul 2026722 PMAQI
22nd Jul 2026803 PMAQI
22nd Jul 2026714 PMAQI
22nd Jul 2026695 PMAQI
22nd Jul 2026676 PMAQI
22nd Jul 2026657 PMAQI
22nd Jul 2026668 PMAQI
22nd Jul 2026799 PMAQI
22nd Jul 20267310 PMAQI
22nd Jul 20267811 PMAQI
23rd Jul 20267212 AMAQI
23rd Jul 2026621 AMAQI
23rd Jul 2026652 AMAQI
23rd Jul 2026623 AMAQI

30°C26/34°C

23rd Jul 2026604 AMAQI
23rd Jul 2026605 AMAQI
23rd Jul 2026606 AMAQI
23rd Jul 2026647 AMAQI
23rd Jul 2026658 AMAQI
23rd Jul 2026679 AMAQI
23rd Jul 20267010 AMAQI
23rd Jul 20267111 AMAQI
23rd Jul 20267612 PMAQI
23rd Jul 2026811 PMAQI
23rd Jul 2026742 PMAQI
23rd Jul 2026693 PMAQI
23rd Jul 2026624 PMAQI
23rd Jul 2026635 PMAQI
23rd Jul 2026506 PMAQI
23rd Jul 2026407 PMAQI
23rd Jul 2026368 PMAQI
23rd Jul 2026299 PMAQI
23rd Jul 20262510 PMAQI
23rd Jul 20262711 PMAQI
24th Jul 20262912 AMAQI
24th Jul 2026311 AMAQI
24th Jul 2026312 AMAQI
24th Jul 2026293 AMAQI

30°C27/35°C

24th Jul 2026314 AMAQI
24th Jul 2026315 AMAQI
24th Jul 2026296 AMAQI
24th Jul 2026347 AMAQI
24th Jul 2026408 AMAQI
24th Jul 2026429 AMAQI
24th Jul 20263810 AMAQI
24th Jul 20264211 AMAQI
24th Jul 20264212 PMAQI
24th Jul 2026481 PMAQI
24th Jul 2026512 PMAQI
24th Jul 2026463 PMAQI
24th Jul 2026404 PMAQI
24th Jul 2026365 PMAQI
24th Jul 2026316 PMAQI
24th Jul 2026317 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026259 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20262911 PMAQI
25th Jul 20263312 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026362 AMAQI
25th Jul 2026293 AMAQI

28°C25/33°C

25th Jul 2026294 AMAQI
25th Jul 2026255 AMAQI
25th Jul 2026276 AMAQI
25th Jul 2026317 AMAQI
25th Jul 2026338 AMAQI
25th Jul 2026389 AMAQI
25th Jul 20264610 AMAQI
25th Jul 20265011 AMAQI
25th Jul 20265312 PMAQI
25th Jul 2026531 PMAQI
25th Jul 2026512 PMAQI
25th Jul 2026523 PMAQI
25th Jul 2026444 PMAQI
25th Jul 2026405 PMAQI
25th Jul 2026276 PMAQI
25th Jul 2026237 PMAQI
25th Jul 2026238 PMAQI
25th Jul 2026279 PMAQI
25th Jul 20263810 PMAQI
25th Jul 20263811 PMAQI
26th Jul 20263212 AMAQI
26th Jul 2026421 AMAQI
26th Jul 2026362 AMAQI
26th Jul 2026383 AMAQI

27°C23/32°C

26th Jul 2026314 AMAQI
26th Jul 2026335 AMAQI
26th Jul 2026316 AMAQI
26th Jul 2026337 AMAQI
26th Jul 2026388 AMAQI
26th Jul 2026339 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20264411 AMAQI
26th Jul 20264412 PMAQI
26th Jul 2026481 PMAQI
26th Jul 2026562 PMAQI
26th Jul 2026553 PMAQI
26th Jul 2026404 PMAQI
26th Jul 2026425 PMAQI
26th Jul 2026336 PMAQI
26th Jul 2026297 PMAQI
26th Jul 2026368 PMAQI
26th Jul 2026299 PMAQI
26th Jul 20263810 PMAQI
26th Jul 20263611 PMAQI
27th Jul 20263812 AMAQI
27th Jul 2026381 AMAQI
27th Jul 2026382 AMAQI
27th Jul 2026233 AMAQI

27°C24/31°C

27th Jul 2026214 AMAQI
27th Jul 2026235 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026298 AMAQI
27th Jul 2026279 AMAQI
27th Jul 20263010 AMAQI
27th Jul 20262311 AMAQI
27th Jul 20262112 PMAQI
27th Jul 2026271 PMAQI
27th Jul 2026342 PMAQI
27th Jul 2026313 PMAQI
27th Jul 2026304 PMAQI
27th Jul 2026295 PMAQI
27th Jul 2026316 PMAQI
27th Jul 2026367 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026289 PMAQI
27th Jul 20263410 PMAQI
27th Jul 20262911 PMAQI
28th Jul 20263412 AMAQI
28th Jul 2026341 AMAQI
28th Jul 2026272 AMAQI
28th Jul 2026363 AMAQI

26°C23/29°C

28th Jul 2026294 AMAQI
28th Jul 2026325 AMAQI
28th Jul 2026336 AMAQI
28th Jul 2026317 AMAQI
28th Jul 2026368 AMAQI
28th Jul 2026389 AMAQI
28th Jul 20265010 AMAQI
28th Jul 20265611 AMAQI
28th Jul 20264612 PMAQI
28th Jul 2026401 PMAQI
28th Jul 2026482 PMAQI
28th Jul 2026523 PMAQI
28th Jul 2026424 PMAQI
28th Jul 2026545 PMAQI
28th Jul 2026386 PMAQI
28th Jul 2026367 PMAQI
28th Jul 2026388 PMAQI
28th Jul 2026549 PMAQI
28th Jul 20264410 PMAQI
28th Jul 20266011 PMAQI
29th Jul 20265612 AMAQI
29th Jul 2026531 AMAQI
29th Jul 2026542 AMAQI
29th Jul 2026383 AMAQI

26°C23/29°C

29th Jul 2026534 AMAQI
29th Jul 2026515 AMAQI
29th Jul 2026526 AMAQI
29th Jul 2026517 AMAQI
29th Jul 2026408 AMAQI
29th Jul 2026519 AMAQI
29th Jul 20264710 AMAQI
29th Jul 20263611 AMAQI
29th Jul 20264012 PMAQI
29th Jul 2026271 PMAQI
29th Jul 2026272 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026274 PMAQI
29th Jul 2026275 PMAQI
29th Jul 2026296 PMAQI
29th Jul 2026347 PMAQI
29th Jul 2026298 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20263110 PMAQI
29th Jul 20264211 PMAQI
30th Jul 20263612 AMAQI
30th Jul 2026381 AMAQI
30th Jul 2026422 AMAQI
30th Jul 2026363 AMAQI

28°C24/33°C

30th Jul 2026404 AMAQI
30th Jul 2026425 AMAQI
30th Jul 2026426 AMAQI
30th Jul 2026407 AMAQI
30th Jul 2026348 AMAQI
30th Jul 2026299 AMAQI
30th Jul 20263810 AMAQI
30th Jul 20264011 AMAQI
30th Jul 20263612 PMAQI
30th Jul 2026401 PMAQI
30th Jul 2026462 PMAQI
30th Jul 2026543 PMAQI
30th Jul 2026544 PMAQI
30th Jul 2026555 PMAQI
30th Jul 2026606 PMAQI
30th Jul 2026577 PMAQI
30th Jul 2026518 PMAQI
30th Jul 2026469 PMAQI
30th Jul 20265510 PMAQI
30th Jul 20265811 PMAQI
31st Jul 20265612 AMAQI
31st Jul 2026531 AMAQI
31st Jul 2026362 AMAQI
31st Jul 2026313 AMAQI

30°C27/34°C

31st Jul 2026364 AMAQI
31st Jul 2026425 AMAQI
31st Jul 2026406 AMAQI
31st Jul 2026427 AMAQI
31st Jul 2026408 AMAQI
31st Jul 2026429 AMAQI
31st Jul 20264210 AMAQI
31st Jul 20265111 AMAQI
31st Jul 20265312 PMAQI
31st Jul 2026561 PMAQI
31st Jul 2026512 PMAQI
31st Jul 2026423 PMAQI
31st Jul 2026444 PMAQI
31st Jul 2026425 PMAQI
31st Jul 2026536 PMAQI
31st Jul 2026527 PMAQI
31st Jul 2026428 PMAQI
31st Jul 2026519 PMAQI
31st Jul 20265010 PMAQI
31st Jul 20264411 PMAQI
1st Aug 20264912 AMAQI
1st Aug 2026501 AMAQI
1st Aug 2026502 AMAQI
1st Aug 2026543 AMAQI

29°C27/34°C

1st Aug 2026564 AMAQI
1st Aug 2026575 AMAQI
1st Aug 2026566 AMAQI
1st Aug 2026577 AMAQI
1st Aug 2026558 AMAQI
1st Aug 2026669 AMAQI
1st Aug 20266810 AMAQI
1st Aug 20266911 AMAQI
1st Aug 20266712 PMAQI
1st Aug 2026721 PMAQI
1st Aug 2026662 PMAQI
1st Aug 2026693 PMAQI
1st Aug 2026654 PMAQI
1st Aug 2026585 PMAQI
1st Aug 2026676 PMAQI
1st Aug 2026747 PMAQI
1st Aug 2026708 PMAQI
1st Aug 2026719 PMAQI
1st Aug 20267010 PMAQI
1st Aug 20267211 PMAQI
2nd Aug 20266712 AMAQI
2nd Aug 2026661 AMAQI
2nd Aug 2026702 AMAQI
2nd Aug 2026673 AMAQI

30°C26/34°C

2nd Aug 2026684 AMAQI
2nd Aug 2026675 AMAQI
2nd Aug 2026686 AMAQI
2nd Aug 2026697 AMAQI
2nd Aug 2026718 AMAQI
2nd Aug 2026709 AMAQI
2nd Aug 20266910 AMAQI
2nd Aug 20266511 AMAQI
2nd Aug 20266012 PMAQI
2nd Aug 2026591 PMAQI
2nd Aug 2026512 PMAQI
2nd Aug 2026443 PMAQI
2nd Aug 2026384 PMAQI
2nd Aug 2026295 PMAQI
2nd Aug 2026256 PMAQI
2nd Aug 2026297 PMAQI
2nd Aug 2026298 PMAQI
2nd Aug 2026299 PMAQI
2nd Aug 20262510 PMAQI
2nd Aug 20262911 PMAQI
3rd Aug 20262912 AMAQI
3rd Aug 2026271 AMAQI
3rd Aug 2026312 AMAQI
3rd Aug 2026323 AMAQI

28°C24/33°C

3rd Aug 2026344 AMAQI
3rd Aug 2026275 AMAQI
3rd Aug 2026336 AMAQI
3rd Aug 2026217 AMAQI
3rd Aug 2026238 AMAQI
3rd Aug 2026219 AMAQI
3rd Aug 20262110 AMAQI
3rd Aug 20262111 AMAQI
3rd Aug 20262112 PMAQI
3rd Aug 2026231 PMAQI
3rd Aug 2026212 PMAQI
3rd Aug 2026213 PMAQI
3rd Aug 2026214 PMAQI
3rd Aug 2026215 PMAQI
3rd Aug 2026216 PMAQI
3rd Aug 2026217 PMAQI
3rd Aug 2026218 PMAQI
3rd Aug 2026219 PMAQI
3rd Aug 20262110 PMAQI
3rd Aug 20262311 PMAQI
4th Aug 20262112 AMAQI
4th Aug 2026211 AMAQI
4th Aug 2026232 AMAQI
4th Aug 2026213 AMAQI

24°C23/27°C

4th Aug 2026214 AMAQI
4th Aug 2026255 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026237 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262510 AMAQI
4th Aug 20262711 AMAQI
4th Aug 20262712 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026252 PMAQI
4th Aug 2026513 PMAQI
4th Aug 2026454 PMAQI
4th Aug 2026605 PMAQI
4th Aug 2026536 PMAQI
4th Aug 2026577 PMAQI
4th Aug 2026528 PMAQI
4th Aug 2026559 PMAQI
4th Aug 20265310 PMAQI
4th Aug 20265911 PMAQI
5th Aug 20265312 AMAQI
5th Aug 2026521 AMAQI
5th Aug 2026532 AMAQI
5th Aug 2026513 AMAQI

24°C22/27°C

5th Aug 2026404 AMAQI
5th Aug 2026405 AMAQI
5th Aug 2026366 AMAQI
5th Aug 2026427 AMAQI
5th Aug 2026518 AMAQI
5th Aug 2026339 AMAQI
5th Aug 20264010 AMAQI
5th Aug 20262711 AMAQI
5th Aug 20263612 PMAQI
5th Aug 2026311 PMAQI
5th Aug 2026382 PMAQI
5th Aug 2026253 PMAQI
5th Aug 2026424 PMAQI
5th Aug 2026505 PMAQI
5th Aug 2026426 PMAQI
5th Aug 2026387 PMAQI
5th Aug 2026408 PMAQI
5th Aug 2026469 PMAQI
5th Aug 20265410 PMAQI
5th Aug 20265511 PMAQI
6th Aug 20264412 AMAQI
6th Aug 2026511 AMAQI
6th Aug 2026442 AMAQI
6th Aug 2026463 AMAQI

25°C22/29°C

6th Aug 2026444 AMAQI
6th Aug 2026465 AMAQI
6th Aug 2026366 AMAQI
6th Aug 2026487 AMAQI
6th Aug 2026468 AMAQI
6th Aug 2026499 AMAQI
6th Aug 20265110 AMAQI
6th Aug 20265611 AMAQI
6th Aug 20265612 PMAQI
6th Aug 2026441 PMAQI
6th Aug 2026402 PMAQI
6th Aug 2026423 PMAQI
6th Aug 2026364 PMAQI
6th Aug 2026365 PMAQI
6th Aug 2026406 PMAQI
6th Aug 2026407 PMAQI
6th Aug 2026368 PMAQI
6th Aug 2026449 PMAQI
6th Aug 20265410 PMAQI
6th Aug 20265311 PMAQI
7th Aug 20266012 AMAQI
7th Aug 2026581 AMAQI
7th Aug 2026502 AMAQI
7th Aug 2026553 AMAQI

28°C24/32°C

7th Aug 2026514 AMAQI
7th Aug 2026515 AMAQI
7th Aug 2026446 AMAQI
7th Aug 2026427 AMAQI
7th Aug 2026538 AMAQI
7th Aug 2026449 AMAQI
7th Aug 20265110 AMAQI
7th Aug 20265511 AMAQI
7th Aug 20264412 PMAQI
7th Aug 2026461 PMAQI
7th Aug 2026482 PMAQI
7th Aug 2026363 PMAQI
7th Aug 2026364 PMAQI
7th Aug 2026465 PMAQI
7th Aug 2026406 PMAQI
7th Aug 2026387 PMAQI
7th Aug 2026388 PMAQI
7th Aug 2026219 PMAQI
7th Aug 20264610 PMAQI
7th Aug 20264911 PMAQI
8th Aug 20265212 AMAQI
8th Aug 2026501 AMAQI
8th Aug 2026402 AMAQI
8th Aug 2026333 AMAQI

28°C25/32°C

8th Aug 2026384 AMAQI
8th Aug 2026335 AMAQI
8th Aug 2026296 AMAQI
8th Aug 2026367 AMAQI
8th Aug 2026268 AMAQI
8th Aug 2026519 AMAQI
8th Aug 20264610 AMAQI
8th Aug 20264411 AMAQI
8th Aug 20264012 PMAQI
8th Aug 2026331 PMAQI
8th Aug 2026402 PMAQI
8th Aug 2026343 PMAQI
8th Aug 2026274 PMAQI
8th Aug 2026275 PMAQI
8th Aug 2026326 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026278 PMAQI
8th Aug 2026239 PMAQI
8th Aug 20263210 PMAQI
8th Aug 20262511 PMAQI
9th Aug 20262912 AMAQI
9th Aug 2026311 AMAQI
9th Aug 2026332 AMAQI
9th Aug 2026343 AMAQI

28°C24/32°C

9th Aug 2026254 AMAQI
9th Aug 2026315 AMAQI
9th Aug 2026316 AMAQI
9th Aug 2026407 AMAQI
9th Aug 2026408 AMAQI
9th Aug 2026329 AMAQI
9th Aug 20263110 AMAQI
9th Aug 20263111 AMAQI
9th Aug 20263812 PMAQI
9th Aug 2026211 PMAQI
9th Aug 2026332 PMAQI
9th Aug 2026343 PMAQI
9th Aug 2026314 PMAQI
9th Aug 2026295 PMAQI
9th Aug 2026366 PMAQI
9th Aug 2026327 PMAQI
9th Aug 2026548 PMAQI
9th Aug 2026349 PMAQI
9th Aug 20262710 PMAQI
9th Aug 20262311 PMAQI
10th Aug 20262712 AMAQI
10th Aug 2026211 AMAQI
10th Aug 2026232 AMAQI
10th Aug 2026253 AMAQI

28°C24/32°C

10th Aug 2026214 AMAQI
10th Aug 2026215 AMAQI
10th Aug 2026236 AMAQI
10th Aug 2026297 AMAQI
10th Aug 2026258 AMAQI
10th Aug 2026239 AMAQI
10th Aug 20262710 AMAQI
10th Aug 20262511 AMAQI
10th Aug 20262512 PMAQI
10th Aug 2026271 PMAQI
10th Aug 2026232 PMAQI
10th Aug 2026233 PMAQI
10th Aug 2026294 PMAQI
10th Aug 2026255 PMAQI
10th Aug 2026426 PMAQI
10th Aug 2026257 PMAQI
10th Aug 2026468 PMAQI
10th Aug 2026339 PMAQI
10th Aug 20264710 PMAQI
10th Aug 20264811 PMAQI
11th Aug 20263812 AMAQI
11th Aug 2026311 AMAQI
11th Aug 2026292 AMAQI
11th Aug 2026253 AMAQI

26°C23/30°C

11th Aug 2026334 AMAQI
11th Aug 2026385 AMAQI
11th Aug 2026446 AMAQI
11th Aug 2026427 AMAQI
11th Aug 2026498 AMAQI
11th Aug 2026409 AMAQI
11th Aug 20263610 AMAQI
11th Aug 20262311 AMAQI
11th Aug 20262112 PMAQI
11th Aug 2026211 PMAQI
11th Aug 2026212 PMAQI
11th Aug 2026273 PMAQI
11th Aug 2026334 PMAQI
11th Aug 2026335 PMAQI
11th Aug 2026316 PMAQI
11th Aug 2026217 PMAQI
11th Aug 2026278 PMAQI
11th Aug 2026279 PMAQI
11th Aug 20262910 PMAQI
11th Aug 20263111 PMAQI
12th Aug 20262512 AMAQI
12th Aug 2026211 AMAQI
12th Aug 2026212 AMAQI
12th Aug 2026233 AMAQI

23°C19/27°C

12th Aug 2026254 AMAQI
12th Aug 2026255 AMAQI
12th Aug 2026256 AMAQI
12th Aug 2026257 AMAQI
12th Aug 2026238 AMAQI
12th Aug 2026239 AMAQI
12th Aug 20262310 AMAQI
12th Aug 20262511 AMAQI
12th Aug 20262112 PMAQI
12th Aug 2026231 PMAQI
12th Aug 2026252 PMAQI
12th Aug 2026233 PMAQI
12th Aug 2026254 PMAQI
12th Aug 2026235 PMAQI
12th Aug 2026216 PMAQI
12th Aug 2026257 PMAQI
12th Aug 2026218 PMAQI
12th Aug 2026219 PMAQI
12th Aug 20262210 PMAQI
12th Aug 20262311 PMAQI
13th Aug 20262512 AMAQI
13th Aug 2026271 AMAQI
13th Aug 2026252 AMAQI
13th Aug 2026263 AMAQI

23°C21/25°C

13th Aug 2026244 AMAQI
13th Aug 2026225 AMAQI
13th Aug 2026256 AMAQI
13th Aug 2026257 AMAQI
13th Aug 2026278 AMAQI
13th Aug 2026469 AMAQI
13th Aug 20265710 AMAQI
13th Aug 20265811 AMAQI
13th Aug 20265512 PMAQI
13th Aug 2026441 PMAQI
13th Aug 2026452 PMAQI
13th Aug 2026293 PMAQI
13th Aug 2026344 PMAQI
13th Aug 2026275 PMAQI
13th Aug 2026276 PMAQI
13th Aug 2026327 PMAQI
13th Aug 2026448 PMAQI
13th Aug 2026319 PMAQI
13th Aug 20263810 PMAQI
13th Aug 20264211 PMAQI
14th Aug 20264212 AMAQI
14th Aug 2026341 AMAQI
14th Aug 2026402 AMAQI
14th Aug 2026443 AMAQI

26°C23/30°C

14th Aug 2026384 AMAQI
14th Aug 2026285 AMAQI
14th Aug 2026306 AMAQI
14th Aug 2026317 AMAQI
14th Aug 2026278 AMAQI
14th Aug 2026329 AMAQI
14th Aug 20264010 AMAQI
14th Aug 20262911 AMAQI
14th Aug 20263412 PMAQI
14th Aug 2026381 PMAQI
14th Aug 2026382 PMAQI
14th Aug 2026483 PMAQI
14th Aug 2026484 PMAQI
14th Aug 2026485 PMAQI
14th Aug 2026386 PMAQI
14th Aug 2026277 PMAQI
14th Aug 2026348 PMAQI
14th Aug 2026389 PMAQI
14th Aug 20262510 PMAQI
14th Aug 20262511 PMAQI
15th Aug 20262512 AMAQI
15th Aug 2026291 AMAQI
15th Aug 2026382 AMAQI
15th Aug 2026233 AMAQI

26°C24/28°C

15th Aug 2026254 AMAQI
15th Aug 2026255 AMAQI
15th Aug 2026296 AMAQI
15th Aug 2026387 AMAQI
15th Aug 2026298 AMAQI
15th Aug 2026279 AMAQI
15th Aug 20263610 AMAQI
15th Aug 20263311 AMAQI
15th Aug 20263612 PMAQI
15th Aug 2026251 PMAQI
15th Aug 2026442 PMAQI
15th Aug 2026463 PMAQI
15th Aug 2026314 PMAQI
15th Aug 2026445 PMAQI
15th Aug 2026466 PMAQI
15th Aug 2026407 PMAQI
15th Aug 2026598 PMAQI
15th Aug 2026609 PMAQI
15th Aug 20265710 PMAQI
15th Aug 20265511 PMAQI
16th Aug 20265012 AMAQI
16th Aug 2026501 AMAQI
16th Aug 2026442 AMAQI
16th Aug 2026463 AMAQI

26°C24/30°C

16th Aug 2026364 AMAQI
16th Aug 2026345 AMAQI
16th Aug 2026386 AMAQI
16th Aug 2026367 AMAQI
16th Aug 2026408 AMAQI
16th Aug 2026429 AMAQI
16th Aug 20263610 AMAQI
16th Aug 20264011 AMAQI
16th Aug 20265312 PMAQI
16th Aug 2026461 PMAQI
16th Aug 2026342 PMAQI
16th Aug 2026343 PMAQI
16th Aug 2026364 PMAQI
16th Aug 2026495 PMAQI
16th Aug 2026316 PMAQI
16th Aug 2026367 PMAQI
16th Aug 2026368 PMAQI
16th Aug 2026429 PMAQI
16th Aug 20265310 PMAQI
16th Aug 20264911 PMAQI
17th Aug 20265012 AMAQI
17th Aug 2026401 AMAQI
17th Aug 2026422 AMAQI
17th Aug 2026463 AMAQI

26°C23/29°C

17th Aug 2026384 AMAQI
17th Aug 2026385 AMAQI
17th Aug 2026336 AMAQI
17th Aug 2026257 AMAQI
17th Aug 2026278 AMAQI
17th Aug 2026299 AMAQI
17th Aug 20262510 AMAQI
17th Aug 20264811 AMAQI
17th Aug 20265012 PMAQI
17th Aug 2026381 PMAQI
17th Aug 2026252 PMAQI
17th Aug 2026233 PMAQI
17th Aug 2026324 PMAQI
17th Aug 2026255 PMAQI
17th Aug 2026256 PMAQI
17th Aug 2026237 PMAQI
17th Aug 2026258 PMAQI
17th Aug 2026299 PMAQI
17th Aug 20263110 PMAQI
17th Aug 20263611 PMAQI
18th Aug 20262712 AMAQI
18th Aug 2026401 AMAQI
18th Aug 2026422 AMAQI
18th Aug 2026453 AMAQI

13°C9/18°C

18th Aug 2026324 AMAQI
4 AM
18th Aug 2026385 AMAQI
18th Aug 2026316 AMAQI
18th Aug 2026347 AMAQI
18th Aug 2026328 AMAQI
18th Aug 2026349 AMAQI
18th Aug 20263110 AMAQI
18th Aug 20262711 AMAQI
11 AM
18th Aug 20264612 PMAQI
18th Aug 2026581 PMAQI
18th Aug 2026402 PMAQI
18th Aug 2026293 PMAQI
18th Aug 2026314 PMAQI
18th Aug 2026365 PMAQI
18th Aug 2026276 PMAQI
6 PM
18th Aug 2026237 PMAQI
18th Aug 2026368 PMAQI
18th Aug 2026309 PMAQI
18th Aug 20262710 PMAQI
18th Aug 20262911 PMAQI
11 PM
3 AM

27°C24/30°C

Day time
Avg. Highest Time
10 AM - 5 PM

42AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
4 AM - 6 AM

38AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 5 PM (Avg. 42), while the lowest AQI was between 4 AM to 6 AM (Avg. 38).
Night time
Avg. Highest Time
10 PM - 11 PM

42AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 9 PM

39AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 42), while the lowest AQI was between 12 AM to 9 PM (Avg. 39).

2026 Days Vs Air Quality

Hanamigawa, Yachiyo, Chiba, Japan

2026

84%

194

16%

36

Total number of days with different AQI categories in last 230 days in 2026 (135 days remaining)

Good
194 Days
Moderate
36 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 84%

Health Risk Level:

Low

In 2026, 84% of 230 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

Hanamigawa, Yachiyo, 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)
2nd January 2026
26AQI (US)
3rd January 2026
18AQI (US)
4th January 2026
25AQI (US)
5th January 2026
51AQI (US)
6th January 2026
21AQI (US)
7th January 2026
36AQI (US)
8th January 2026
43AQI (US)
9th January 2026
17AQI (US)
10th January 2026
40AQI (US)
11th January 2026
34AQI (US)
12th January 2026
23AQI (US)
13th January 2026
44AQI (US)
14th January 2026
15AQI (US)
15th January 2026
34AQI (US)
16th January 2026
53AQI (US)
17th January 2026
57AQI (US)
18th January 2026
42AQI (US)
19th January 2026
50AQI (US)
20th January 2026
50AQI (US)
21st January 2026
20AQI (US)
22nd January 2026
31AQI (US)
23rd January 2026
40AQI (US)
24th January 2026
39AQI (US)
25th January 2026
39AQI (US)
26th January 2026
21AQI (US)
27th January 2026
38AQI (US)
28th January 2026
33AQI (US)
29th January 2026
16AQI (US)
30th January 2026
22AQI (US)
31st January 2026
36AQI (US)
1st February 2026
36AQI (US)
2nd February 2026
39AQI (US)
3rd February 2026
25AQI (US)
4th February 2026
39AQI (US)
5th February 2026
64AQI (US)
6th February 2026
65AQI (US)
7th February 2026
13AQI (US)
8th February 2026
9AQI (US)
9th February 2026
32AQI (US)
10th February 2026
37AQI (US)
11th February 2026
47AQI (US)
12th February 2026
31AQI (US)
13th February 2026
43AQI (US)
14th February 2026
52AQI (US)
15th February 2026
54AQI (US)
16th February 2026
53AQI (US)
17th February 2026
15AQI (US)
18th February 2026
29AQI (US)
19th February 2026
29AQI (US)
20th February 2026
31AQI (US)
21st February 2026
41AQI (US)
22nd February 2026
46AQI (US)
23rd February 2026
29AQI (US)
24th February 2026
36AQI (US)
25th February 2026
17AQI (US)
26th February 2026
16AQI (US)
27th February 2026
43AQI (US)
28th February 2026
44AQI (US)
1st March 2026
34AQI (US)
2nd March 2026
81AQI (US)
3rd March 2026
44AQI (US)
4th March 2026
56AQI (US)
5th March 2026
55AQI (US)
6th March 2026
49AQI (US)
7th March 2026
45AQI (US)
8th March 2026
41AQI (US)
9th March 2026
49AQI (US)
10th March 2026
58AQI (US)
11th March 2026
57AQI (US)
12th March 2026
67AQI (US)
13th March 2026
41AQI (US)
14th March 2026
47AQI (US)
15th March 2026
56AQI (US)
16th March 2026
56AQI (US)
17th March 2026
52AQI (US)
18th March 2026
55AQI (US)
19th March 2026
40AQI (US)
20th March 2026
34AQI (US)
21st March 2026
41AQI (US)
22nd March 2026
51AQI (US)
23rd March 2026
49AQI (US)
24th March 2026
48AQI (US)
25th March 2026
48AQI (US)
26th March 2026
30AQI (US)
27th March 2026
29AQI (US)
28th March 2026
50AQI (US)
29th March 2026
56AQI (US)
30th March 2026
55AQI (US)
31st March 2026
24AQI (US)
1st April 2026
24AQI (US)
2nd April 2026
10AQI (US)
3rd April 2026
40AQI (US)
4th April 2026
45AQI (US)
5th April 2026
38AQI (US)
6th April 2026
29AQI (US)
7th April 2026
26AQI (US)
8th April 2026
20AQI (US)
9th April 2026
29AQI (US)
10th April 2026
48AQI (US)
11th April 2026
40AQI (US)
12th April 2026
25AQI (US)
13th April 2026
36AQI (US)
14th April 2026
32AQI (US)
15th April 2026
36AQI (US)
16th April 2026
33AQI (US)
17th April 2026
36AQI (US)
18th April 2026
30AQI (US)
19th April 2026
32AQI (US)
20th April 2026
36AQI (US)
21st April 2026
39AQI (US)
22nd April 2026
46AQI (US)
23rd April 2026
38AQI (US)
24th April 2026
32AQI (US)
25th April 2026
45AQI (US)
26th April 2026
51AQI (US)
27th April 2026
48AQI (US)
28th April 2026
43AQI (US)
29th April 2026
38AQI (US)
30th April 2026
18AQI (US)
1st May 2026
43AQI (US)
2nd May 2026
48AQI (US)
3rd May 2026
45AQI (US)
4th May 2026
30AQI (US)
5th May 2026
22AQI (US)
6th May 2026
30AQI (US)
7th May 2026
26AQI (US)
8th May 2026
25AQI (US)
9th May 2026
21AQI (US)
10th May 2026
28AQI (US)
11th May 2026
28AQI (US)
12th May 2026
31AQI (US)
13th May 2026
38AQI (US)
14th May 2026
34AQI (US)
15th May 2026
33AQI (US)
16th May 2026
86AQI (US)
17th May 2026
69AQI (US)
18th May 2026
53AQI (US)
19th May 2026
50AQI (US)
20th May 2026
62AQI (US)
21st May 2026
59AQI (US)
22nd May 2026
61AQI (US)
23rd May 2026
53AQI (US)
24th May 2026
58AQI (US)
25th May 2026
47AQI (US)
26th May 2026
39AQI (US)
27th May 2026
24AQI (US)
28th May 2026
26AQI (US)
29th May 2026
25AQI (US)
30th May 2026
24AQI (US)
31st May 2026
26AQI (US)
1st June 2026
34AQI (US)
2nd June 2026
17AQI (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
21AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
24AQI (US)
12th June 2026
23AQI (US)
13th June 2026
41AQI (US)
14th June 2026
44AQI (US)
15th June 2026
12AQI (US)
16th June 2026
20AQI (US)
17th June 2026
24AQI (US)
18th June 2026
24AQI (US)
19th June 2026
26AQI (US)
20th June 2026
22AQI (US)
21st June 2026
20AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
21AQI (US)
25th June 2026
26AQI (US)
26th June 2026
30AQI (US)
27th June 2026
26AQI (US)
28th June 2026
27AQI (US)
29th June 2026
26AQI (US)
30th June 2026
23AQI (US)
1st July 2026
33AQI (US)
2nd July 2026
21AQI (US)
3rd July 2026
19AQI (US)
4th July 2026
37AQI (US)
5th July 2026
18AQI (US)
6th July 2026
25AQI (US)
7th July 2026
26AQI (US)
8th July 2026
24AQI (US)
9th July 2026
27AQI (US)
10th July 2026
16AQI (US)
11th July 2026
19AQI (US)
12th July 2026
26AQI (US)
13th July 2026
34AQI (US)
14th July 2026
40AQI (US)
15th July 2026
42AQI (US)
16th July 2026
71AQI (US)
17th July 2026
48AQI (US)
18th July 2026
25AQI (US)
19th July 2026
34AQI (US)
20th July 2026
52AQI (US)
21st July 2026
49AQI (US)
22nd July 2026
67AQI (US)
23rd July 2026
59AQI (US)
24th July 2026
35AQI (US)
25th July 2026
36AQI (US)
26th July 2026
38AQI (US)
27th July 2026
29AQI (US)
28th July 2026
41AQI (US)
29th July 2026
39AQI (US)
30th July 2026
45AQI (US)
31st July 2026
45AQI (US)
1st August 2026
63AQI (US)
2nd August 2026
53AQI (US)
3rd August 2026
24AQI (US)
4th August 2026
35AQI (US)
5th August 2026
42AQI (US)
6th August 2026
45AQI (US)
7th August 2026
46AQI (US)
8th August 2026
35AQI (US)
9th August 2026
32AQI (US)
10th August 2026
28AQI (US)
11th August 2026
31AQI (US)
12th August 2026
23AQI (US)
13th August 2026
35AQI (US)
14th August 2026
36AQI (US)
15th August 2026
38AQI (US)
16th August 2026
41AQI (US)
17th August 2026
33AQI (US)
18th August 2026
34AQI (US)
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

33AQI (US)

36AQI (US)

48AQI (US)

35AQI (US)

40AQI (US)

24AQI (US)

36AQI (US)

37AQI (US)

No. of days

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

202636AQI (US)

28
3
23
5
18
13
29
1
23
8
30
27
4
16
2
194
36

Highest AQI (US) recorded in

March

48AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202541AQI (US)

28
3
27
1
25
6
28
2
30
1
29
1
24
7
23
8
30
13
18
14
16
13
18
284
81

Highest AQI (US) recorded in

October

51AQI (US)

Lowest AQI (US) recorded in

May

31AQI (US)

202438AQI (US)

16
11
1
30
19
12
30
1
23
5
1
29
2
28
2
31
217
23
1

Highest AQI (US) recorded in

July

48AQI (US)

Lowest AQI (US) recorded in

August

31AQI (US)

202337AQI (US)

3
24
7
27
7

Highest AQI (US) recorded in

December

38AQI (US)

Lowest AQI (US) recorded in

November

25AQI (US)

202241AQI (US)

24
5
24
5

Highest AQI (US) recorded in

January

41AQI (US)

Lowest AQI (US) recorded in

January

41AQI (US)

202140AQI (US)

19
11
23
5
27
3
22
1
23
8
26
4
30
1
25
4
2
28
2
30
1
24
6
17
14
294
60
2

Highest AQI (US) recorded in

December

49AQI (US)

Lowest AQI (US) recorded in

April

32AQI (US)

202040AQI (US)

8
5
17
4
18
21
9
30
1
18
13
17
2
28
3
18
12
17
14
192
63

Highest AQI (US) recorded in

August

48AQI (US)

Lowest AQI (US) recorded in

September

33AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
41AQI (US)
Least Polluted Year Recorded
2026(Avg.)
36AQI (US)

Hanamigawa's annual 2026 AQI (US) (36) shows an average percentage change of -8.7% (improved AQI (US)) compared to previous years: 2020 (40), 2021 (40), 2022 (41), 2023 (37), 2024 (38), 2025 (41).