Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Hachioji, Tokyo, 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

Hachioji, Tokyo, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
1st Aug 2026
72AQI
Lowest AQI recorded on
30th Aug 2024
10AQI

Same Day Analysis (1st August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 72 of Moderate air quality on the same day.

Day & Night AQI Trend: 31st Jul - 1st Aug 2026

Hachioji, Tokyo, Japan

AQI
Day
Night
.

4 AM31st Jul 2026

6 PM

3 AM1st Aug 2026

Day time
Avg. Highest Time
7AM31st Jul

72AQI

Avg. Lowest Time
3PM31st Jul

52AQI

Night time
Avg. Highest Time
2AM1st Aug

79AQI

Avg. Lowest Time
3AM1st Aug

63AQI

In the last 24 hours,

Hachioji's AQI reached its highest point of 79 at 2 AM during the Night, while the lowest point, 52, was recorded at 3 PM during the Day between 31st Jul and 1st Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Hachioji, Tokyo, Japan

JulAug
03rd - 04th04th - 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 - 31st31st - 01st01st
Day
Night
3rd Jul 202694 AMAQI
3rd Jul 202685 AMAQI
3rd Jul 2026116 AMAQI
3rd Jul 202687 AMAQI
3rd Jul 202698 AMAQI
3rd Jul 202689 AMAQI
3rd Jul 2026910 AMAQI
3rd Jul 20261211 AMAQI
3rd Jul 20261612 PMAQI
3rd Jul 2026151 PMAQI
3rd Jul 2026152 PMAQI
3rd Jul 2026133 PMAQI
3rd Jul 2026164 PMAQI
3rd Jul 2026225 PMAQI
3rd Jul 2026216 PMAQI
3rd Jul 2026237 PMAQI
3rd Jul 2026288 PMAQI
3rd Jul 2026429 PMAQI
3rd Jul 20263210 PMAQI
3rd Jul 20264511 PMAQI
4th Jul 20265112 AMAQI
4th Jul 2026531 AMAQI
4th Jul 2026412 AMAQI
4th Jul 2026293 AMAQI

21°C20/23°C

4th Jul 2026634 AMAQI
4th Jul 2026635 AMAQI
4th Jul 2026666 AMAQI
4th Jul 2026687 AMAQI
4th Jul 2026648 AMAQI
4th Jul 2026699 AMAQI
4th Jul 20267110 AMAQI
4th Jul 20267411 AMAQI
4th Jul 20267812 PMAQI
4th Jul 2026841 PMAQI
4th Jul 2026582 PMAQI
4th Jul 2026383 PMAQI
4th Jul 2026304 PMAQI
4th Jul 2026255 PMAQI
4th Jul 2026186 PMAQI
4th Jul 2026187 PMAQI
4th Jul 2026138 PMAQI
4th Jul 2026139 PMAQI
4th Jul 20261010 PMAQI
4th Jul 20261211 PMAQI
5th Jul 20261512 AMAQI
5th Jul 2026131 AMAQI
5th Jul 2026122 AMAQI
5th Jul 2026103 AMAQI

22°C19/24°C

5th Jul 2026124 AMAQI
5th Jul 2026105 AMAQI
5th Jul 2026116 AMAQI
5th Jul 2026117 AMAQI
5th Jul 2026158 AMAQI
5th Jul 2026189 AMAQI
5th Jul 20261410 AMAQI
5th Jul 20261111 AMAQI
5th Jul 20261212 PMAQI
5th Jul 202691 PMAQI
5th Jul 2026102 PMAQI
5th Jul 2026103 PMAQI
5th Jul 2026144 PMAQI
5th Jul 2026145 PMAQI
5th Jul 2026226 PMAQI
5th Jul 2026247 PMAQI
5th Jul 2026248 PMAQI
5th Jul 2026289 PMAQI
5th Jul 20262810 PMAQI
5th Jul 20262711 PMAQI
6th Jul 20262512 AMAQI
6th Jul 2026301 AMAQI
6th Jul 2026292 AMAQI
6th Jul 2026273 AMAQI

23°C20/26°C

6th Jul 2026314 AMAQI
6th Jul 2026245 AMAQI
6th Jul 2026246 AMAQI
6th Jul 2026297 AMAQI
6th Jul 2026308 AMAQI
6th Jul 2026309 AMAQI
6th Jul 20263010 AMAQI
6th Jul 20263311 AMAQI
6th Jul 20265212 PMAQI
6th Jul 2026201 PMAQI
6th Jul 2026232 PMAQI
6th Jul 2026243 PMAQI
6th Jul 2026254 PMAQI
6th Jul 2026215 PMAQI
6th Jul 2026206 PMAQI
6th Jul 2026237 PMAQI
6th Jul 2026658 PMAQI
6th Jul 2026479 PMAQI
6th Jul 20263010 PMAQI
6th Jul 20262511 PMAQI
7th Jul 20262712 AMAQI
7th Jul 2026271 AMAQI
7th Jul 2026252 AMAQI
7th Jul 2026273 AMAQI

21°C20/22°C

7th Jul 2026274 AMAQI
7th Jul 2026275 AMAQI
7th Jul 2026276 AMAQI
7th Jul 2026257 AMAQI
7th Jul 2026278 AMAQI
7th Jul 2026239 AMAQI
7th Jul 20262210 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20262212 PMAQI
7th Jul 2026211 PMAQI
7th Jul 2026242 PMAQI
7th Jul 2026273 PMAQI
7th Jul 2026244 PMAQI
7th Jul 2026285 PMAQI
7th Jul 2026286 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026278 PMAQI
7th Jul 2026259 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262611 PMAQI
8th Jul 20263012 AMAQI
8th Jul 2026291 AMAQI
8th Jul 2026292 AMAQI
8th Jul 2026283 AMAQI

23°C19/28°C

8th Jul 2026274 AMAQI
8th Jul 2026285 AMAQI
8th Jul 2026286 AMAQI
8th Jul 2026277 AMAQI
8th Jul 2026288 AMAQI
8th Jul 2026259 AMAQI
8th Jul 20262610 AMAQI
8th Jul 20262411 AMAQI
8th Jul 20262412 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026253 PMAQI
8th Jul 2026274 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026236 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026198 PMAQI
8th Jul 2026219 PMAQI
8th Jul 20262310 PMAQI
8th Jul 20262611 PMAQI
9th Jul 20262812 AMAQI
9th Jul 2026271 AMAQI
9th Jul 2026272 AMAQI
9th Jul 2026283 AMAQI

24°C20/28°C

9th Jul 2026254 AMAQI
9th Jul 2026275 AMAQI
9th Jul 2026266 AMAQI
9th Jul 2026277 AMAQI
9th Jul 2026258 AMAQI
9th Jul 2026239 AMAQI
9th Jul 20262210 AMAQI
9th Jul 20262311 AMAQI
9th Jul 20262212 PMAQI
9th Jul 2026211 PMAQI
9th Jul 2026242 PMAQI
9th Jul 2026253 PMAQI
9th Jul 2026244 PMAQI
9th Jul 2026255 PMAQI
9th Jul 2026246 PMAQI
9th Jul 2026237 PMAQI
9th Jul 2026218 PMAQI
9th Jul 2026199 PMAQI
9th Jul 20262710 PMAQI
9th Jul 20262511 PMAQI
10th Jul 20262612 AMAQI
10th Jul 2026281 AMAQI
10th Jul 2026252 AMAQI
10th Jul 2026183 AMAQI

25°C20/30°C

10th Jul 2026234 AMAQI
10th Jul 2026285 AMAQI
10th Jul 2026276 AMAQI
10th Jul 2026277 AMAQI
10th Jul 2026288 AMAQI
10th Jul 2026289 AMAQI
10th Jul 20263010 AMAQI
10th Jul 20262711 AMAQI
10th Jul 20262712 PMAQI
10th Jul 2026191 PMAQI
10th Jul 2026412 PMAQI
10th Jul 2026363 PMAQI
10th Jul 2026224 PMAQI
10th Jul 2026265 PMAQI
10th Jul 2026276 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026258 PMAQI
10th Jul 2026269 PMAQI
10th Jul 20262910 PMAQI
10th Jul 20262811 PMAQI
11th Jul 20262812 AMAQI
11th Jul 2026311 AMAQI
11th Jul 2026292 AMAQI
11th Jul 2026223 AMAQI

26°C22/31°C

11th Jul 2026254 AMAQI
11th Jul 2026295 AMAQI
11th Jul 2026306 AMAQI
11th Jul 2026297 AMAQI
11th Jul 2026308 AMAQI
11th Jul 2026339 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20262811 AMAQI
11th Jul 20262712 PMAQI
11th Jul 2026251 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026223 PMAQI
11th Jul 2026254 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026307 PMAQI
11th Jul 2026268 PMAQI
11th Jul 2026279 PMAQI
11th Jul 20262910 PMAQI
11th Jul 20262911 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026312 AMAQI
12th Jul 2026293 AMAQI

26°C22/31°C

12th Jul 2026264 AMAQI
12th Jul 2026295 AMAQI
12th Jul 2026286 AMAQI
12th Jul 2026297 AMAQI
12th Jul 2026308 AMAQI
12th Jul 2026299 AMAQI
12th Jul 20262610 AMAQI
12th Jul 20262511 AMAQI
12th Jul 20262312 PMAQI
12th Jul 2026211 PMAQI
12th Jul 2026232 PMAQI
12th Jul 2026263 PMAQI
12th Jul 2026274 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026286 PMAQI
12th Jul 2026267 PMAQI
12th Jul 2026258 PMAQI
12th Jul 2026289 PMAQI
12th Jul 20262810 PMAQI
12th Jul 20262711 PMAQI
13th Jul 20262912 AMAQI
13th Jul 2026341 AMAQI
13th Jul 2026362 AMAQI
13th Jul 2026323 AMAQI

25°C23/29°C

13th Jul 2026344 AMAQI
13th Jul 2026285 AMAQI
13th Jul 2026266 AMAQI
13th Jul 2026267 AMAQI
13th Jul 2026268 AMAQI
13th Jul 2026279 AMAQI
13th Jul 20262810 AMAQI
13th Jul 20262311 AMAQI
13th Jul 20262512 PMAQI
13th Jul 2026211 PMAQI
13th Jul 2026222 PMAQI
13th Jul 2026253 PMAQI
13th Jul 2026274 PMAQI
13th Jul 2026305 PMAQI
13th Jul 2026316 PMAQI
13th Jul 2026367 PMAQI
13th Jul 2026318 PMAQI
13th Jul 2026319 PMAQI
13th Jul 20263310 PMAQI
13th Jul 20263411 PMAQI
14th Jul 20263312 AMAQI
14th Jul 2026331 AMAQI
14th Jul 2026332 AMAQI
14th Jul 2026323 AMAQI

25°C23/27°C

14th Jul 2026284 AMAQI
14th Jul 2026305 AMAQI
14th Jul 2026286 AMAQI
14th Jul 2026287 AMAQI
14th Jul 2026278 AMAQI
14th Jul 2026329 AMAQI
14th Jul 20263110 AMAQI
14th Jul 20262511 AMAQI
14th Jul 20262412 PMAQI
14th Jul 2026221 PMAQI
14th Jul 2026212 PMAQI
14th Jul 2026243 PMAQI
14th Jul 2026284 PMAQI
14th Jul 2026315 PMAQI
14th Jul 2026296 PMAQI
14th Jul 2026297 PMAQI
14th Jul 2026308 PMAQI
14th Jul 2026319 PMAQI
14th Jul 20263410 PMAQI
14th Jul 20263411 PMAQI
15th Jul 20263512 AMAQI
15th Jul 2026361 AMAQI
15th Jul 2026342 AMAQI
15th Jul 2026343 AMAQI

27°C23/32°C

15th Jul 2026294 AMAQI
15th Jul 2026345 AMAQI
15th Jul 2026296 AMAQI
15th Jul 2026717 AMAQI
15th Jul 2026728 AMAQI
15th Jul 2026809 AMAQI
15th Jul 20268210 AMAQI
15th Jul 20267411 AMAQI
15th Jul 20262712 PMAQI
15th Jul 2026231 PMAQI
15th Jul 2026232 PMAQI
15th Jul 2026353 PMAQI
15th Jul 2026444 PMAQI
15th Jul 2026425 PMAQI
15th Jul 2026376 PMAQI
15th Jul 2026387 PMAQI
15th Jul 2026408 PMAQI
15th Jul 2026399 PMAQI
15th Jul 20264510 PMAQI
15th Jul 20264311 PMAQI
16th Jul 20267512 AMAQI
16th Jul 2026771 AMAQI
16th Jul 2026732 AMAQI
16th Jul 2026473 AMAQI

29°C24/34°C

16th Jul 2026654 AMAQI
16th Jul 2026665 AMAQI
16th Jul 2026726 AMAQI
16th Jul 2026717 AMAQI
16th Jul 2026758 AMAQI
16th Jul 2026749 AMAQI
16th Jul 20267510 AMAQI
16th Jul 20267411 AMAQI
16th Jul 20267712 PMAQI
16th Jul 2026781 PMAQI
16th Jul 2026782 PMAQI
16th Jul 2026753 PMAQI
16th Jul 2026684 PMAQI
16th Jul 2026945 PMAQI
16th Jul 2026846 PMAQI
16th Jul 2026877 PMAQI
16th Jul 2026878 PMAQI
16th Jul 2026989 PMAQI
16th Jul 20268810 PMAQI
16th Jul 20268511 PMAQI
17th Jul 20267112 AMAQI
17th Jul 2026711 AMAQI
17th Jul 2026692 AMAQI
17th Jul 2026583 AMAQI

29°C25/34°C

17th Jul 2026604 AMAQI
17th Jul 2026645 AMAQI
17th Jul 2026636 AMAQI
17th Jul 2026637 AMAQI
17th Jul 2026618 AMAQI
17th Jul 2026629 AMAQI
17th Jul 20266210 AMAQI
17th Jul 20267211 AMAQI
17th Jul 20266612 PMAQI
17th Jul 2026681 PMAQI
17th Jul 2026772 PMAQI
17th Jul 2026823 PMAQI
17th Jul 2026404 PMAQI
17th Jul 2026465 PMAQI
17th Jul 2026476 PMAQI
17th Jul 2026587 PMAQI
17th Jul 2026588 PMAQI
17th Jul 2026639 PMAQI
17th Jul 20265310 PMAQI
17th Jul 20265011 PMAQI
18th Jul 20264412 AMAQI
18th Jul 2026401 AMAQI
18th Jul 2026322 AMAQI
18th Jul 2026363 AMAQI

27°C25/29°C

18th Jul 2026314 AMAQI
18th Jul 2026325 AMAQI
18th Jul 2026376 AMAQI
18th Jul 2026307 AMAQI
18th Jul 2026258 AMAQI
18th Jul 2026279 AMAQI
18th Jul 20262710 AMAQI
18th Jul 20262111 AMAQI
18th Jul 20262712 PMAQI
18th Jul 2026271 PMAQI
18th Jul 2026292 PMAQI
18th Jul 2026313 PMAQI
18th Jul 2026234 PMAQI
18th Jul 2026195 PMAQI
18th Jul 2026156 PMAQI
18th Jul 2026137 PMAQI
18th Jul 2026128 PMAQI
18th Jul 2026129 PMAQI
18th Jul 20261210 PMAQI
18th Jul 20261011 PMAQI
19th Jul 20261112 AMAQI
19th Jul 2026101 AMAQI
19th Jul 202682 AMAQI
19th Jul 202683 AMAQI

26°C24/30°C

19th Jul 202674 AMAQI
19th Jul 202685 AMAQI
19th Jul 2026106 AMAQI
19th Jul 2026127 AMAQI
19th Jul 2026148 AMAQI
19th Jul 2026179 AMAQI
19th Jul 20261810 AMAQI
19th Jul 20261911 AMAQI
19th Jul 20261912 PMAQI
19th Jul 2026161 PMAQI
19th Jul 2026222 PMAQI
19th Jul 2026203 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026255 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026298 PMAQI
19th Jul 2026349 PMAQI
19th Jul 20262910 PMAQI
19th Jul 20262211 PMAQI
20th Jul 20262312 AMAQI
20th Jul 2026251 AMAQI
20th Jul 2026282 AMAQI
20th Jul 2026233 AMAQI

27°C24/31°C

20th Jul 2026234 AMAQI
20th Jul 2026235 AMAQI
20th Jul 2026236 AMAQI
20th Jul 2026227 AMAQI
20th Jul 2026248 AMAQI
20th Jul 2026269 AMAQI
20th Jul 20263010 AMAQI
20th Jul 20263311 AMAQI
20th Jul 20263112 PMAQI
20th Jul 2026371 PMAQI
20th Jul 2026362 PMAQI
20th Jul 2026373 PMAQI
20th Jul 2026424 PMAQI
20th Jul 2026455 PMAQI
20th Jul 2026456 PMAQI
20th Jul 2026467 PMAQI
20th Jul 2026428 PMAQI
20th Jul 2026429 PMAQI
20th Jul 20264010 PMAQI
20th Jul 20264011 PMAQI
21st Jul 20264412 AMAQI
21st Jul 2026461 AMAQI
21st Jul 2026452 AMAQI
21st Jul 2026493 AMAQI

30°C25/35°C

21st Jul 2026524 AMAQI
21st Jul 2026595 AMAQI
21st Jul 2026656 AMAQI
21st Jul 2026667 AMAQI
21st Jul 2026668 AMAQI
21st Jul 2026669 AMAQI
21st Jul 20266310 AMAQI
21st Jul 20266311 AMAQI
21st Jul 2026641 PMAQI
21st Jul 2026622 PMAQI
21st Jul 2026653 PMAQI
21st Jul 2026664 PMAQI
21st Jul 2026695 PMAQI
21st Jul 2026686 PMAQI
21st Jul 2026957 PMAQI
21st Jul 2026678 PMAQI
21st Jul 2026639 PMAQI
21st Jul 20266410 PMAQI
21st Jul 20266411 PMAQI
22nd Jul 20267112 AMAQI
22nd Jul 2026701 AMAQI
22nd Jul 2026702 AMAQI
22nd Jul 2026633 AMAQI

31°C26/36°C

22nd Jul 2026634 AMAQI
22nd Jul 2026755 AMAQI
22nd Jul 2026706 AMAQI
22nd Jul 2026737 AMAQI
22nd Jul 2026798 AMAQI
22nd Jul 2026769 AMAQI
22nd Jul 20267610 AMAQI
22nd Jul 20268311 AMAQI
22nd Jul 20268012 PMAQI
22nd Jul 2026811 PMAQI
22nd Jul 2026792 PMAQI
22nd Jul 2026853 PMAQI
22nd Jul 2026824 PMAQI
22nd Jul 2026785 PMAQI
22nd Jul 2026786 PMAQI
22nd Jul 2026747 PMAQI
22nd Jul 2026808 PMAQI
22nd Jul 2026809 PMAQI
22nd Jul 20268310 PMAQI
22nd Jul 20269011 PMAQI
23rd Jul 20268212 AMAQI
23rd Jul 2026861 AMAQI
23rd Jul 2026702 AMAQI
23rd Jul 2026523 AMAQI

31°C26/36°C

23rd Jul 2026554 AMAQI
23rd Jul 2026655 AMAQI
23rd Jul 2026766 AMAQI
23rd Jul 2026787 AMAQI
23rd Jul 2026858 AMAQI
23rd Jul 2026999 AMAQI
23rd Jul 20269010 AMAQI
23rd Jul 20267911 AMAQI
23rd Jul 20266112 PMAQI
23rd Jul 2026581 PMAQI
23rd Jul 2026562 PMAQI
23rd Jul 2026583 PMAQI
23rd Jul 2026654 PMAQI
23rd Jul 2026795 PMAQI
23rd Jul 2026856 PMAQI
23rd Jul 2026827 PMAQI
23rd Jul 2026918 PMAQI
23rd Jul 2026969 PMAQI
23rd Jul 20266810 PMAQI
23rd Jul 20265911 PMAQI
24th Jul 20265712 AMAQI
24th Jul 2026521 AMAQI
24th Jul 2026482 AMAQI
24th Jul 2026523 AMAQI

30°C26/36°C

24th Jul 2026584 AMAQI
24th Jul 2026625 AMAQI
24th Jul 2026516 AMAQI
24th Jul 2026347 AMAQI
24th Jul 2026318 AMAQI
24th Jul 2026299 AMAQI
24th Jul 20263610 AMAQI
24th Jul 20264611 AMAQI
24th Jul 20265312 PMAQI
24th Jul 2026641 PMAQI
24th Jul 2026762 PMAQI
24th Jul 2026903 PMAQI
24th Jul 2026764 PMAQI
24th Jul 2026675 PMAQI
24th Jul 2026646 PMAQI
24th Jul 2026617 PMAQI
24th Jul 2026638 PMAQI
24th Jul 2026649 PMAQI
24th Jul 20266210 PMAQI
24th Jul 20266111 PMAQI
25th Jul 20266912 AMAQI
25th Jul 2026611 AMAQI
25th Jul 2026612 AMAQI
25th Jul 2026643 AMAQI

29°C26/32°C

25th Jul 2026644 AMAQI
25th Jul 2026605 AMAQI
25th Jul 2026606 AMAQI
25th Jul 2026577 AMAQI
25th Jul 2026598 AMAQI
25th Jul 2026629 AMAQI
25th Jul 20266510 AMAQI
25th Jul 20267411 AMAQI
25th Jul 20266912 PMAQI
25th Jul 2026571 PMAQI
25th Jul 2026522 PMAQI
25th Jul 2026473 PMAQI
25th Jul 2026524 PMAQI
25th Jul 2026465 PMAQI
25th Jul 2026446 PMAQI
25th Jul 2026587 PMAQI
25th Jul 2026628 PMAQI
25th Jul 2026459 PMAQI
25th Jul 20263110 PMAQI
25th Jul 20263311 PMAQI
26th Jul 20262512 AMAQI
26th Jul 2026181 AMAQI
26th Jul 2026232 AMAQI
26th Jul 2026323 AMAQI

28°C25/33°C

26th Jul 2026284 AMAQI
26th Jul 2026285 AMAQI
26th Jul 2026286 AMAQI
26th Jul 2026287 AMAQI
26th Jul 2026268 AMAQI
26th Jul 2026289 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20262811 AMAQI
26th Jul 20263412 PMAQI
26th Jul 2026341 PMAQI
26th Jul 2026412 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026154 PMAQI
26th Jul 2026195 PMAQI
26th Jul 2026166 PMAQI
26th Jul 2026207 PMAQI
26th Jul 2026278 PMAQI
26th Jul 2026129 PMAQI
26th Jul 20261210 PMAQI
26th Jul 20261611 PMAQI
27th Jul 20261612 AMAQI
27th Jul 2026131 AMAQI
27th Jul 2026162 AMAQI
27th Jul 2026153 AMAQI

26°C24/30°C

27th Jul 2026234 AMAQI
27th Jul 2026245 AMAQI
27th Jul 2026206 AMAQI
27th Jul 2026277 AMAQI
27th Jul 2026288 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20263010 AMAQI
27th Jul 20263011 AMAQI
27th Jul 20262512 PMAQI
27th Jul 2026261 PMAQI
27th Jul 2026272 PMAQI
27th Jul 2026283 PMAQI
27th Jul 2026304 PMAQI
27th Jul 2026235 PMAQI
27th Jul 2026246 PMAQI
27th Jul 2026367 PMAQI
27th Jul 2026348 PMAQI
27th Jul 2026359 PMAQI
27th Jul 20263510 PMAQI
27th Jul 20263611 PMAQI
28th Jul 20263812 AMAQI
28th Jul 2026341 AMAQI
28th Jul 2026322 AMAQI
28th Jul 2026313 AMAQI

26°C22/30°C

28th Jul 2026324 AMAQI
28th Jul 2026305 AMAQI
28th Jul 2026306 AMAQI
28th Jul 2026297 AMAQI
28th Jul 2026308 AMAQI
28th Jul 2026329 AMAQI
28th Jul 20263410 AMAQI
28th Jul 20263511 AMAQI
28th Jul 20263612 PMAQI
28th Jul 2026361 PMAQI
28th Jul 2026392 PMAQI
28th Jul 2026383 PMAQI
28th Jul 2026384 PMAQI
28th Jul 2026315 PMAQI
28th Jul 2026306 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026338 PMAQI
28th Jul 2026409 PMAQI
28th Jul 20263910 PMAQI
28th Jul 20263611 PMAQI
29th Jul 20263912 AMAQI
29th Jul 2026431 AMAQI
29th Jul 2026412 AMAQI
29th Jul 2026343 AMAQI

25°C23/29°C

29th Jul 2026384 AMAQI
29th Jul 2026365 AMAQI
29th Jul 2026336 AMAQI
29th Jul 2026327 AMAQI
29th Jul 2026348 AMAQI
29th Jul 2026299 AMAQI
29th Jul 20262910 AMAQI
29th Jul 20262811 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026261 PMAQI
29th Jul 2026232 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026234 PMAQI
29th Jul 2026245 PMAQI
29th Jul 2026236 PMAQI
29th Jul 2026237 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026239 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20262311 PMAQI
30th Jul 20262312 AMAQI
30th Jul 2026231 AMAQI
30th Jul 2026242 AMAQI
30th Jul 2026243 AMAQI

27°C21/33°C

30th Jul 2026254 AMAQI
30th Jul 2026235 AMAQI
30th Jul 2026246 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026268 AMAQI
30th Jul 2026279 AMAQI
30th Jul 20262710 AMAQI
30th Jul 20262911 AMAQI
30th Jul 20263112 PMAQI
30th Jul 2026301 PMAQI
30th Jul 2026322 PMAQI
30th Jul 2026323 PMAQI
30th Jul 2026354 PMAQI
30th Jul 2026385 PMAQI
30th Jul 2026506 PMAQI
30th Jul 2026517 PMAQI
30th Jul 2026518 PMAQI
30th Jul 2026519 PMAQI
30th Jul 20264410 PMAQI
30th Jul 20264911 PMAQI
31st Jul 20266512 AMAQI
31st Jul 2026671 AMAQI
31st Jul 2026692 AMAQI
31st Jul 2026693 AMAQI

29°C24/34°C

31st Jul 2026674 AMAQI
31st Jul 2026665 AMAQI
31st Jul 2026696 AMAQI
31st Jul 2026727 AMAQI
31st Jul 2026718 AMAQI
31st Jul 2026699 AMAQI
31st Jul 20266510 AMAQI
31st Jul 20266311 AMAQI
31st Jul 20265912 PMAQI
31st Jul 2026591 PMAQI
31st Jul 2026542 PMAQI
31st Jul 2026523 PMAQI
31st Jul 2026554 PMAQI
31st Jul 2026665 PMAQI
31st Jul 2026576 PMAQI
31st Jul 2026667 PMAQI
31st Jul 2026678 PMAQI
31st Jul 2026659 PMAQI
31st Jul 20266810 PMAQI
31st Jul 20267011 PMAQI
1st Aug 20267412 AMAQI
1st Aug 2026751 AMAQI
1st Aug 2026792 AMAQI
1st Aug 2026633 AMAQI

28°C24/34°C

1st Aug 2026704 AMAQI
4 AM
1st Aug 2026675 AMAQI
1st Aug 2026676 AMAQI
1st Aug 2026707 AMAQI
1st Aug 2026738 AMAQI
1st Aug 2026729 AMAQI
1st Aug 20266510 AMAQI
1st Aug 20267011 AMAQI
11 AM
1st Aug 20266712 PMAQI
1st Aug 2026671 PMAQI
1st Aug 2026622 PMAQI
1st Aug 2026633 PMAQI
1st Aug 2026624 PMAQI
1st Aug 2026755 PMAQI
1st Aug 2026796 PMAQI
6 PM
1st Aug 2026797 PMAQI
1st Aug 2026818 PMAQI
1st Aug 2026909 PMAQI
1st Aug 20267710 PMAQI
1st Aug 20268511 PMAQI
11 PM
3 AM

29°C25/35°C

Day time
Avg. Highest Time
4 AM - 11 AM

40AQI

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

39AQI

13 hours / Day
390 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 11 AM (Avg. 40), while the lowest AQI was between 4 AM to 4 PM (Avg. 39).
Night time
Avg. Highest Time
7 PM - 9 PM

43AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM

35AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 9 PM (Avg. 43), while the lowest AQI was between 3 AM to 3 AM (Avg. 35).

2026 Days Vs Air Quality

Hachioji, Tokyo, Japan

2026

80%

171

20%

42

Total number of days with different AQI categories in last 213 days in 2026 (152 days remaining)

Good
171 Days
Moderate
42 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 80%

Health Risk Level:

Low

In 2026, 80% of 213 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

Hachioji, Tokyo, 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
26AQI (US)
2nd January 2026
18AQI (US)
3rd January 2026
15AQI (US)
4th January 2026
18AQI (US)
5th January 2026
30AQI (US)
6th January 2026
23AQI (US)
7th January 2026
27AQI (US)
8th January 2026
26AQI (US)
9th January 2026
22AQI (US)
10th January 2026
26AQI (US)
11th January 2026
21AQI (US)
12th January 2026
16AQI (US)
13th January 2026
26AQI (US)
14th January 2026
18AQI (US)
15th January 2026
43AQI (US)
16th January 2026
49AQI (US)
17th January 2026
48AQI (US)
18th January 2026
38AQI (US)
19th January 2026
37AQI (US)
20th January 2026
40AQI (US)
21st January 2026
19AQI (US)
22nd January 2026
31AQI (US)
23rd January 2026
52AQI (US)
24th January 2026
51AQI (US)
25th January 2026
42AQI (US)
26th January 2026
27AQI (US)
27th January 2026
42AQI (US)
28th January 2026
27AQI (US)
29th January 2026
26AQI (US)
30th January 2026
35AQI (US)
31st January 2026
35AQI (US)
1st February 2026
43AQI (US)
2nd February 2026
56AQI (US)
3rd February 2026
30AQI (US)
4th February 2026
45AQI (US)
5th February 2026
51AQI (US)
6th February 2026
43AQI (US)
7th February 2026
16AQI (US)
8th February 2026
20AQI (US)
9th February 2026
40AQI (US)
10th February 2026
46AQI (US)
11th February 2026
50AQI (US)
12th February 2026
36AQI (US)
13th February 2026
51AQI (US)
14th February 2026
63AQI (US)
15th February 2026
54AQI (US)
16th February 2026
47AQI (US)
17th February 2026
18AQI (US)
18th February 2026
34AQI (US)
19th February 2026
31AQI (US)
20th February 2026
28AQI (US)
21st February 2026
48AQI (US)
22nd February 2026
44AQI (US)
23rd February 2026
42AQI (US)
24th February 2026
37AQI (US)
25th February 2026
34AQI (US)
26th February 2026
10AQI (US)
27th February 2026
30AQI (US)
28th February 2026
49AQI (US)
1st March 2026
49AQI (US)
2nd March 2026
82AQI (US)
3rd March 2026
49AQI (US)
4th March 2026
45AQI (US)
5th March 2026
58AQI (US)
6th March 2026
53AQI (US)
7th March 2026
50AQI (US)
8th March 2026
43AQI (US)
9th March 2026
51AQI (US)
10th March 2026
59AQI (US)
11th March 2026
58AQI (US)
12th March 2026
73AQI (US)
13th March 2026
45AQI (US)
14th March 2026
37AQI (US)
15th March 2026
15AQI (US)
16th March 2026
31AQI (US)
17th March 2026
54AQI (US)
18th March 2026
57AQI (US)
19th March 2026
39AQI (US)
20th March 2026
29AQI (US)
21st March 2026
51AQI (US)
22nd March 2026
53AQI (US)
23rd March 2026
54AQI (US)
24th March 2026
48AQI (US)
25th March 2026
65AQI (US)
26th March 2026
22AQI (US)
27th March 2026
19AQI (US)
28th March 2026
51AQI (US)
29th March 2026
54AQI (US)
30th March 2026
56AQI (US)
31st March 2026
26AQI (US)
1st April 2026
20AQI (US)
2nd April 2026
35AQI (US)
3rd April 2026
45AQI (US)
4th April 2026
45AQI (US)
5th April 2026
37AQI (US)
6th April 2026
28AQI (US)
7th April 2026
39AQI (US)
8th April 2026
22AQI (US)
9th April 2026
32AQI (US)
10th April 2026
46AQI (US)
11th April 2026
37AQI (US)
12th April 2026
35AQI (US)
13th April 2026
38AQI (US)
14th April 2026
48AQI (US)
15th April 2026
44AQI (US)
16th April 2026
36AQI (US)
17th April 2026
40AQI (US)
18th April 2026
35AQI (US)
19th April 2026
40AQI (US)
20th April 2026
39AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
45AQI (US)
23rd April 2026
37AQI (US)
24th April 2026
32AQI (US)
25th April 2026
46AQI (US)
26th April 2026
52AQI (US)
27th April 2026
49AQI (US)
28th April 2026
42AQI (US)
29th April 2026
41AQI (US)
30th April 2026
38AQI (US)
1st May 2026
48AQI (US)
2nd May 2026
50AQI (US)
3rd May 2026
44AQI (US)
4th May 2026
28AQI (US)
5th May 2026
24AQI (US)
6th May 2026
34AQI (US)
7th May 2026
36AQI (US)
8th May 2026
28AQI (US)
9th May 2026
28AQI (US)
10th May 2026
35AQI (US)
11th May 2026
37AQI (US)
12th May 2026
41AQI (US)
13th May 2026
45AQI (US)
14th May 2026
42AQI (US)
15th May 2026
45AQI (US)
16th May 2026
86AQI (US)
17th May 2026
69AQI (US)
18th May 2026
54AQI (US)
19th May 2026
49AQI (US)
20th May 2026
62AQI (US)
21st May 2026
59AQI (US)
22nd May 2026
61AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
59AQI (US)
25th May 2026
47AQI (US)
26th May 2026
39AQI (US)
27th May 2026
25AQI (US)
28th May 2026
25AQI (US)
29th May 2026
25AQI (US)
30th May 2026
25AQI (US)
31st May 2026
28AQI (US)
1st June 2026
31AQI (US)
2nd June 2026
34AQI (US)
3rd June 2026
22AQI (US)
4th June 2026
23AQI (US)
5th June 2026
22AQI (US)
6th June 2026
23AQI (US)
7th June 2026
22AQI (US)
8th June 2026
20AQI (US)
9th June 2026
22AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
25AQI (US)
13th June 2026
28AQI (US)
14th June 2026
26AQI (US)
15th June 2026
17AQI (US)
16th June 2026
19AQI (US)
17th June 2026
24AQI (US)
18th June 2026
25AQI (US)
19th June 2026
30AQI (US)
20th June 2026
23AQI (US)
21st June 2026
20AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
21AQI (US)
25th June 2026
23AQI (US)
26th June 2026
28AQI (US)
27th June 2026
26AQI (US)
28th June 2026
28AQI (US)
29th June 2026
28AQI (US)
30th June 2026
39AQI (US)
1st July 2026
57AQI (US)
2nd July 2026
18AQI (US)
3rd July 2026
17AQI (US)
4th July 2026
46AQI (US)
5th July 2026
15AQI (US)
6th July 2026
30AQI (US)
7th July 2026
25AQI (US)
8th July 2026
25AQI (US)
9th July 2026
24AQI (US)
10th July 2026
27AQI (US)
11th July 2026
28AQI (US)
12th July 2026
27AQI (US)
13th July 2026
29AQI (US)
14th July 2026
29AQI (US)
15th July 2026
43AQI (US)
16th July 2026
77AQI (US)
17th July 2026
62AQI (US)
18th July 2026
26AQI (US)
19th July 2026
18AQI (US)
20th July 2026
33AQI (US)
21st July 2026
62AQI (US)
22nd July 2026
77AQI (US)
23rd July 2026
74AQI (US)
24th July 2026
56AQI (US)
25th July 2026
56AQI (US)
26th July 2026
25AQI (US)
27th July 2026
26AQI (US)
28th July 2026
34AQI (US)
29th July 2026
29AQI (US)
30th July 2026
33AQI (US)
31st July 2026
65AQI (US)
1st August 2026
72AQI (US)
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
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)

48AQI (US)

39AQI (US)

43AQI (US)

25AQI (US)

38AQI (US)

72AQI (US)

No. of days

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

202638AQI (US)

29
2
23
5
15
16
29
1
23
8
30
22
9
1
171
42

Highest AQI (US) recorded in

August

72AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202535AQI (US)

31
28
29
2
30
31
30
22
9
21
10
29
1
13
18
22
8
25
6
311
54

Highest AQI (US) recorded in

July

48AQI (US)

Lowest AQI (US) recorded in

April

20AQI (US)

202429AQI (US)

31
29
31
30
30
1
29
1
25
6
31
30
31
30
31
358
8

Highest AQI (US) recorded in

June

37AQI (US)

Lowest AQI (US) recorded in

January

22AQI (US)

202329AQI (US)

31
28
30
1
27
3
30
1
27
3
31
29
2
30
31
29
31
354
10

Highest AQI (US) recorded in

April

38AQI (US)

Lowest AQI (US) recorded in

December

23AQI (US)

202229AQI (US)

31
20
1
30
1
25
5
30
1
27
3
20
4
1
28
31
28
2
31
302
17

Highest AQI (US) recorded in

April

39AQI (US)

Lowest AQI (US) recorded in

January

20AQI (US)

202120AQI (US)

31
28
31
30
30
1
28
2
31
29
2
30
31
30
31
360
5

Highest AQI (US) recorded in

June

33AQI (US)

Lowest AQI (US) recorded in

January

10AQI (US)

202015AQI (US)

13
21
18
30
31
31
19
31
30
31
255

Highest AQI (US) recorded in

August

25AQI (US)

Lowest AQI (US) recorded in

April

10AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
38AQI (US)
Least Polluted Year Recorded
2020(Avg.)
15AQI (US)

Hachioji's annual 2026 AQI (US) (38) shows an average percentage change of 57.5% (worsened AQI (US)) compared to previous years: 2020 (15), 2021 (20), 2022 (29), 2023 (29), 2024 (29), 2025 (35).