Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Honcho, 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+

October Air Quality Analysis

Honcho, Tokyo, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
31st Oct 2025
61AQI
Lowest AQI recorded on
6th Oct 2022
17AQI

Same Day Analysis (1st October):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 27 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.

Day & Night AQI Trend: 30th Sep - 1st Oct 2026

Honcho, Tokyo, Japan

AQI
Day
Night
.

5 AM30th Sep 2026

5 PM

4 AM1st Oct 2026

Day time
Avg. Highest Time
8AM30th Sep

60AQI

Avg. Lowest Time
12PM30th Sep

20AQI

Night time
Avg. Highest Time
10PM30th Sep

27AQI

Avg. Lowest Time
12AM1st Oct

21AQI

In the last 24 hours,

Honcho's AQI reached its highest point of 60 at 8 AM during the Day, while the lowest point, 20, was recorded at 12 PM during the Day between 30th Sep and 1st Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Honcho, Tokyo, Japan

SepOct
02nd - 03rd03rd - 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 - 01st01st
Day
Night
2nd Sep 2026565 AMAQI
2nd Sep 2026356 AMAQI
2nd Sep 2026507 AMAQI
2nd Sep 2026288 AMAQI
2nd Sep 2026329 AMAQI
2nd Sep 20263010 AMAQI
2nd Sep 20265211 AMAQI
2nd Sep 20264812 PMAQI
2nd Sep 2026351 PMAQI
2nd Sep 2026492 PMAQI
2nd Sep 2026283 PMAQI
2nd Sep 2026374 PMAQI
2nd Sep 2026295 PMAQI
2nd Sep 2026266 PMAQI
2nd Sep 2026237 PMAQI
2nd Sep 2026218 PMAQI
2nd Sep 2026219 PMAQI
2nd Sep 20262110 PMAQI
2nd Sep 20262411 PMAQI
3rd Sep 20262612 AMAQI
3rd Sep 2026241 AMAQI
3rd Sep 2026242 AMAQI
3rd Sep 2026263 AMAQI
3rd Sep 2026254 AMAQI

28°C25/33°C

3rd Sep 2026255 AMAQI
3rd Sep 2026246 AMAQI
3rd Sep 2026257 AMAQI
3rd Sep 2026248 AMAQI
3rd Sep 2026259 AMAQI
3rd Sep 20262310 AMAQI
3rd Sep 20262511 AMAQI
3rd Sep 20262412 PMAQI
3rd Sep 2026241 PMAQI
3rd Sep 2026252 PMAQI
3rd Sep 2026303 PMAQI
3rd Sep 2026514 PMAQI
3rd Sep 2026335 PMAQI
3rd Sep 2026246 PMAQI
3rd Sep 2026257 PMAQI
3rd Sep 2026238 PMAQI
3rd Sep 2026329 PMAQI
3rd Sep 20263410 PMAQI
3rd Sep 20263611 PMAQI
4th Sep 20262712 AMAQI
4th Sep 2026241 AMAQI
4th Sep 2026222 AMAQI
4th Sep 2026243 AMAQI
4th Sep 2026234 AMAQI

28°C25/32°C

4th Sep 2026215 AMAQI
4th Sep 2026216 AMAQI
4th Sep 2026217 AMAQI
4th Sep 2026218 AMAQI
4th Sep 2026219 AMAQI
4th Sep 20262310 AMAQI
4th Sep 20262611 AMAQI
4th Sep 20263212 PMAQI
4th Sep 2026351 PMAQI
4th Sep 2026372 PMAQI
4th Sep 2026243 PMAQI
4th Sep 2026274 PMAQI
4th Sep 2026255 PMAQI
4th Sep 2026286 PMAQI
4th Sep 2026247 PMAQI
4th Sep 2026228 PMAQI
4th Sep 2026239 PMAQI
4th Sep 20263410 PMAQI
4th Sep 20262311 PMAQI
5th Sep 20262512 AMAQI
5th Sep 2026231 AMAQI
5th Sep 2026232 AMAQI
5th Sep 2026213 AMAQI
5th Sep 2026234 AMAQI

24°C23/26°C

5th Sep 2026245 AMAQI
5th Sep 2026246 AMAQI
5th Sep 2026217 AMAQI
5th Sep 2026218 AMAQI
5th Sep 2026229 AMAQI
5th Sep 20262610 AMAQI
5th Sep 20262811 AMAQI
5th Sep 20262812 PMAQI
5th Sep 2026251 PMAQI
5th Sep 2026312 PMAQI
5th Sep 2026263 PMAQI
5th Sep 2026274 PMAQI
5th Sep 2026275 PMAQI
5th Sep 2026236 PMAQI
5th Sep 2026217 PMAQI
5th Sep 2026238 PMAQI
5th Sep 2026279 PMAQI
5th Sep 20262510 PMAQI
5th Sep 20262911 PMAQI
6th Sep 20262512 AMAQI
6th Sep 2026251 AMAQI
6th Sep 2026252 AMAQI
6th Sep 2026263 AMAQI
6th Sep 2026244 AMAQI

23°C22/25°C

6th Sep 2026235 AMAQI
6th Sep 2026256 AMAQI
6th Sep 2026247 AMAQI
6th Sep 2026278 AMAQI
6th Sep 2026279 AMAQI
6th Sep 20263010 AMAQI
6th Sep 20263011 AMAQI
6th Sep 20263012 PMAQI
6th Sep 2026291 PMAQI
6th Sep 2026292 PMAQI
6th Sep 2026223 PMAQI
6th Sep 2026254 PMAQI
6th Sep 2026255 PMAQI
6th Sep 2026216 PMAQI
6th Sep 2026257 PMAQI
6th Sep 2026238 PMAQI
6th Sep 2026239 PMAQI
6th Sep 20262610 PMAQI
6th Sep 20263211 PMAQI
7th Sep 20262712 AMAQI
7th Sep 2026241 AMAQI
7th Sep 2026192 AMAQI
7th Sep 2026163 AMAQI
7th Sep 2026174 AMAQI

22°C21/24°C

7th Sep 2026165 AMAQI
7th Sep 2026196 AMAQI
7th Sep 2026147 AMAQI
7th Sep 2026158 AMAQI
7th Sep 2026179 AMAQI
7th Sep 20261810 AMAQI
7th Sep 20261711 AMAQI
7th Sep 20262312 PMAQI
7th Sep 2026231 PMAQI
7th Sep 2026222 PMAQI
7th Sep 2026233 PMAQI
7th Sep 2026224 PMAQI
7th Sep 2026215 PMAQI
7th Sep 2026236 PMAQI
7th Sep 2026227 PMAQI
7th Sep 2026228 PMAQI
7th Sep 2026239 PMAQI
7th Sep 20262610 PMAQI
7th Sep 20262411 PMAQI
8th Sep 20262712 AMAQI
8th Sep 2026241 AMAQI
8th Sep 2026232 AMAQI
8th Sep 2026253 AMAQI
8th Sep 2026264 AMAQI

23°C22/25°C

8th Sep 2026245 AMAQI
8th Sep 2026276 AMAQI
8th Sep 2026277 AMAQI
8th Sep 2026228 AMAQI
8th Sep 2026259 AMAQI
8th Sep 20262610 AMAQI
8th Sep 20263011 AMAQI
8th Sep 20263212 PMAQI
8th Sep 2026291 PMAQI
8th Sep 2026332 PMAQI
8th Sep 2026383 PMAQI
8th Sep 2026264 PMAQI
8th Sep 2026305 PMAQI
8th Sep 2026286 PMAQI
8th Sep 2026257 PMAQI
8th Sep 2026268 PMAQI
8th Sep 2026259 PMAQI
8th Sep 20262610 PMAQI
8th Sep 20262611 PMAQI
9th Sep 20262712 AMAQI
9th Sep 2026261 AMAQI
9th Sep 2026222 AMAQI
9th Sep 2026263 AMAQI
9th Sep 2026264 AMAQI

26°C22/29°C

9th Sep 2026255 AMAQI
9th Sep 2026246 AMAQI
9th Sep 2026267 AMAQI
9th Sep 2026228 AMAQI
9th Sep 2026259 AMAQI
9th Sep 20262710 AMAQI
9th Sep 20263011 AMAQI
9th Sep 20262712 PMAQI
9th Sep 2026271 PMAQI
9th Sep 2026262 PMAQI
9th Sep 2026243 PMAQI
9th Sep 2026274 PMAQI
9th Sep 2026265 PMAQI
9th Sep 2026266 PMAQI
9th Sep 2026297 PMAQI
9th Sep 2026288 PMAQI
9th Sep 2026219 PMAQI
9th Sep 20262410 PMAQI
9th Sep 20262611 PMAQI
10th Sep 20263012 AMAQI
10th Sep 2026321 AMAQI
10th Sep 2026282 AMAQI
10th Sep 2026223 AMAQI
10th Sep 2026244 AMAQI

27°C21/33°C

10th Sep 2026205 AMAQI
10th Sep 2026206 AMAQI
10th Sep 2026217 AMAQI
10th Sep 2026218 AMAQI
10th Sep 2026239 AMAQI
10th Sep 20262510 AMAQI
10th Sep 20262811 AMAQI
10th Sep 20263012 PMAQI
10th Sep 2026251 PMAQI
10th Sep 2026272 PMAQI
10th Sep 2026253 PMAQI
10th Sep 2026254 PMAQI
10th Sep 2026265 PMAQI
10th Sep 2026266 PMAQI
10th Sep 2026237 PMAQI
10th Sep 2026278 PMAQI
10th Sep 2026319 PMAQI
10th Sep 20262810 PMAQI
10th Sep 20262611 PMAQI
11th Sep 20262612 AMAQI
11th Sep 2026261 AMAQI
11th Sep 2026262 AMAQI
11th Sep 2026253 AMAQI
11th Sep 2026244 AMAQI

20°C19/21°C

11th Sep 2026245 AMAQI
11th Sep 2026256 AMAQI
11th Sep 2026237 AMAQI
11th Sep 2026288 AMAQI
11th Sep 2026269 AMAQI
11th Sep 20262510 AMAQI
11th Sep 20262611 AMAQI
11th Sep 20262612 PMAQI
11th Sep 2026301 PMAQI
11th Sep 2026322 PMAQI
11th Sep 2026273 PMAQI
11th Sep 2026264 PMAQI
11th Sep 2026275 PMAQI
11th Sep 2026306 PMAQI
11th Sep 2026267 PMAQI
11th Sep 2026258 PMAQI
11th Sep 2026299 PMAQI
11th Sep 20262810 PMAQI
11th Sep 20262711 PMAQI
12th Sep 20262612 AMAQI
12th Sep 2026281 AMAQI
12th Sep 2026312 AMAQI
12th Sep 2026253 AMAQI
12th Sep 2026194 AMAQI

20°C19/20°C

12th Sep 2026175 AMAQI
12th Sep 2026166 AMAQI
12th Sep 2026167 AMAQI
12th Sep 2026168 AMAQI
12th Sep 2026229 AMAQI
12th Sep 20262710 AMAQI
12th Sep 20262311 AMAQI
12th Sep 20262812 PMAQI
12th Sep 2026291 PMAQI
12th Sep 2026262 PMAQI
12th Sep 2026263 PMAQI
12th Sep 2026234 PMAQI
12th Sep 2026245 PMAQI
12th Sep 2026246 PMAQI
12th Sep 2026257 PMAQI
12th Sep 2026278 PMAQI
12th Sep 2026289 PMAQI
12th Sep 20262710 PMAQI
12th Sep 20263011 PMAQI
13th Sep 20262412 AMAQI
13th Sep 2026251 AMAQI
13th Sep 2026232 AMAQI
13th Sep 2026213 AMAQI
13th Sep 2026254 AMAQI

21°C20/23°C

13th Sep 2026236 AMAQI
13th Sep 2026267 AMAQI
13th Sep 2026278 AMAQI
13th Sep 2026269 AMAQI
13th Sep 20262810 AMAQI
13th Sep 20262511 AMAQI
13th Sep 20262612 PMAQI
13th Sep 2026271 PMAQI
13th Sep 2026282 PMAQI
13th Sep 2026303 PMAQI
13th Sep 2026284 PMAQI
13th Sep 2026235 PMAQI
13th Sep 2026266 PMAQI
13th Sep 2026277 PMAQI
13th Sep 2026698 PMAQI
13th Sep 2026609 PMAQI
13th Sep 20265810 PMAQI
13th Sep 20265111 PMAQI
14th Sep 20264112 AMAQI
14th Sep 2026341 AMAQI
14th Sep 2026282 AMAQI
14th Sep 2026233 AMAQI
14th Sep 2026214 AMAQI

24°C21/27°C

14th Sep 2026215 AMAQI
14th Sep 2026246 AMAQI
14th Sep 2026237 AMAQI
14th Sep 2026238 AMAQI
14th Sep 2026249 AMAQI
14th Sep 20262310 AMAQI
14th Sep 20262511 AMAQI
14th Sep 20262412 PMAQI
14th Sep 2026251 PMAQI
14th Sep 2026212 PMAQI
14th Sep 2026253 PMAQI
14th Sep 2026254 PMAQI
14th Sep 2026215 PMAQI
14th Sep 2026246 PMAQI
14th Sep 2026227 PMAQI
14th Sep 2026258 PMAQI
14th Sep 2026249 PMAQI
14th Sep 20262210 PMAQI
14th Sep 20262311 PMAQI
15th Sep 20262812 AMAQI
15th Sep 2026211 AMAQI
15th Sep 2026312 AMAQI
15th Sep 2026273 AMAQI
15th Sep 2026234 AMAQI

27°C23/32°C

15th Sep 2026225 AMAQI
15th Sep 2026246 AMAQI
15th Sep 2026267 AMAQI
15th Sep 2026268 AMAQI
15th Sep 2026239 AMAQI
15th Sep 20262610 AMAQI
15th Sep 20262511 AMAQI
15th Sep 20262112 PMAQI
15th Sep 2026251 PMAQI
15th Sep 2026272 PMAQI
15th Sep 2026223 PMAQI
15th Sep 2026224 PMAQI
15th Sep 2026235 PMAQI
15th Sep 2026256 PMAQI
15th Sep 2026227 PMAQI
15th Sep 2026238 PMAQI
15th Sep 2026239 PMAQI
15th Sep 20262410 PMAQI
15th Sep 20262811 PMAQI
16th Sep 20262512 AMAQI
16th Sep 2026261 AMAQI
16th Sep 2026242 AMAQI
16th Sep 2026263 AMAQI
16th Sep 2026254 AMAQI

24°C22/26°C

16th Sep 2026265 AMAQI
16th Sep 2026286 AMAQI
16th Sep 2026307 AMAQI
16th Sep 2026298 AMAQI
16th Sep 2026309 AMAQI
16th Sep 20263310 AMAQI
16th Sep 20263411 AMAQI
16th Sep 20263212 PMAQI
16th Sep 2026311 PMAQI
16th Sep 2026302 PMAQI
16th Sep 2026293 PMAQI
16th Sep 2026194 PMAQI
16th Sep 2026185 PMAQI
16th Sep 2026306 PMAQI
16th Sep 2026297 PMAQI
16th Sep 2026288 PMAQI
16th Sep 2026349 PMAQI
16th Sep 20263310 PMAQI
16th Sep 20263311 PMAQI
17th Sep 20262812 AMAQI
17th Sep 2026271 AMAQI
17th Sep 2026162 AMAQI
17th Sep 2026153 AMAQI
17th Sep 2026124 AMAQI

21°C19/22°C

17th Sep 2026125 AMAQI
17th Sep 2026116 AMAQI
17th Sep 2026117 AMAQI
17th Sep 2026118 AMAQI
17th Sep 2026109 AMAQI
17th Sep 20261910 AMAQI
17th Sep 20262211 AMAQI
17th Sep 20262612 PMAQI
17th Sep 2026301 PMAQI
17th Sep 2026262 PMAQI
17th Sep 2026263 PMAQI
17th Sep 2026294 PMAQI
17th Sep 2026275 PMAQI
17th Sep 2026296 PMAQI
17th Sep 2026277 PMAQI
17th Sep 2026268 PMAQI
17th Sep 2026299 PMAQI
17th Sep 20262710 PMAQI
17th Sep 20262611 PMAQI
18th Sep 20262612 AMAQI
18th Sep 2026261 AMAQI
18th Sep 2026242 AMAQI
18th Sep 2026253 AMAQI
18th Sep 2026264 AMAQI

21°C20/23°C

18th Sep 2026275 AMAQI
18th Sep 2026276 AMAQI
18th Sep 2026287 AMAQI
18th Sep 2026288 AMAQI
18th Sep 2026289 AMAQI
18th Sep 20262810 AMAQI
18th Sep 20262811 AMAQI
18th Sep 20262712 PMAQI
18th Sep 2026241 PMAQI
18th Sep 2026242 PMAQI
18th Sep 2026233 PMAQI
18th Sep 2026244 PMAQI
18th Sep 2026245 PMAQI
18th Sep 2026306 PMAQI
18th Sep 2026307 PMAQI
18th Sep 2026238 PMAQI
18th Sep 2026229 PMAQI
18th Sep 20262510 PMAQI
18th Sep 20262411 PMAQI
19th Sep 20262812 AMAQI
19th Sep 2026321 AMAQI
19th Sep 2026322 AMAQI
19th Sep 2026313 AMAQI
19th Sep 2026314 AMAQI

21°C18/24°C

19th Sep 2026305 AMAQI
19th Sep 2026296 AMAQI
19th Sep 2026327 AMAQI
19th Sep 2026298 AMAQI
19th Sep 2026299 AMAQI
19th Sep 20263010 AMAQI
19th Sep 20263011 AMAQI
19th Sep 20263212 PMAQI
19th Sep 2026301 PMAQI
19th Sep 2026322 PMAQI
19th Sep 2026303 PMAQI
19th Sep 2026284 PMAQI
19th Sep 2026285 PMAQI
19th Sep 2026286 PMAQI
19th Sep 2026307 PMAQI
19th Sep 2026298 PMAQI
19th Sep 2026279 PMAQI
19th Sep 20262810 PMAQI
19th Sep 20262911 PMAQI
20th Sep 20262712 AMAQI
20th Sep 2026261 AMAQI
20th Sep 2026252 AMAQI
20th Sep 2026283 AMAQI
20th Sep 2026274 AMAQI

23°C21/26°C

20th Sep 2026305 AMAQI
20th Sep 2026266 AMAQI
20th Sep 2026277 AMAQI
20th Sep 2026278 AMAQI
20th Sep 2026299 AMAQI
20th Sep 20263010 AMAQI
20th Sep 20262711 AMAQI
20th Sep 20262912 PMAQI
20th Sep 2026271 PMAQI
20th Sep 2026262 PMAQI
20th Sep 2026263 PMAQI
20th Sep 2026264 PMAQI
20th Sep 2026255 PMAQI
20th Sep 2026306 PMAQI
20th Sep 2026297 PMAQI
20th Sep 2026328 PMAQI
20th Sep 2026309 PMAQI
20th Sep 20262810 PMAQI
20th Sep 20262311 PMAQI
21st Sep 20261712 AMAQI
21st Sep 2026141 AMAQI
21st Sep 2026162 AMAQI
21st Sep 2026163 AMAQI
21st Sep 2026164 AMAQI

22°C21/23°C

21st Sep 2026255 AMAQI
21st Sep 2026146 AMAQI
21st Sep 2026167 AMAQI
21st Sep 2026148 AMAQI
21st Sep 2026179 AMAQI
21st Sep 20261210 AMAQI
21st Sep 20262011 AMAQI
21st Sep 20262012 PMAQI
21st Sep 2026141 PMAQI
21st Sep 2026112 PMAQI
21st Sep 2026123 PMAQI
21st Sep 2026104 PMAQI
21st Sep 2026155 PMAQI
21st Sep 2026106 PMAQI
21st Sep 2026137 PMAQI
21st Sep 2026138 PMAQI
21st Sep 2026169 PMAQI
21st Sep 20261510 PMAQI
21st Sep 20261611 PMAQI
22nd Sep 20261712 AMAQI
22nd Sep 2026201 AMAQI
22nd Sep 2026412 AMAQI
22nd Sep 2026563 AMAQI
22nd Sep 2026564 AMAQI

22°C21/27°C

22nd Sep 2026545 AMAQI
22nd Sep 2026156 AMAQI
22nd Sep 2026217 AMAQI
22nd Sep 2026168 AMAQI
22nd Sep 2026249 AMAQI
22nd Sep 20261910 AMAQI
22nd Sep 20262011 AMAQI
22nd Sep 20262512 PMAQI
22nd Sep 2026281 PMAQI
22nd Sep 2026292 PMAQI
22nd Sep 2026303 PMAQI
22nd Sep 2026284 PMAQI
22nd Sep 2026305 PMAQI
22nd Sep 2026286 PMAQI
22nd Sep 2026377 PMAQI
22nd Sep 2026298 PMAQI
22nd Sep 2026349 PMAQI
22nd Sep 20262810 PMAQI
22nd Sep 20262811 PMAQI
23rd Sep 20262812 AMAQI
23rd Sep 2026271 AMAQI
23rd Sep 2026282 AMAQI
23rd Sep 2026303 AMAQI
23rd Sep 2026274 AMAQI

26°C25/27°C

23rd Sep 2026285 AMAQI
23rd Sep 2026286 AMAQI
23rd Sep 2026287 AMAQI
23rd Sep 2026298 AMAQI
23rd Sep 2026279 AMAQI
23rd Sep 20262810 AMAQI
23rd Sep 20262611 AMAQI
23rd Sep 20262612 PMAQI
23rd Sep 2026251 PMAQI
23rd Sep 2026282 PMAQI
23rd Sep 2026283 PMAQI
23rd Sep 2026274 PMAQI
23rd Sep 2026275 PMAQI
23rd Sep 2026276 PMAQI
23rd Sep 2026287 PMAQI
23rd Sep 2026298 PMAQI
23rd Sep 2026289 PMAQI
23rd Sep 20262810 PMAQI
23rd Sep 20265411 PMAQI
24th Sep 20262412 AMAQI
24th Sep 2026271 AMAQI
24th Sep 2026372 AMAQI
24th Sep 2026543 AMAQI
24th Sep 2026484 AMAQI

22°C20/24°C

24th Sep 2026495 AMAQI
24th Sep 2026286 AMAQI
24th Sep 2026347 AMAQI
24th Sep 2026308 AMAQI
24th Sep 2026259 AMAQI
24th Sep 20262810 AMAQI
24th Sep 20262011 AMAQI
24th Sep 20262312 PMAQI
24th Sep 2026221 PMAQI
24th Sep 2026242 PMAQI
24th Sep 2026273 PMAQI
24th Sep 2026274 PMAQI
24th Sep 2026275 PMAQI
24th Sep 2026406 PMAQI
24th Sep 2026427 PMAQI
24th Sep 2026378 PMAQI
24th Sep 2026519 PMAQI
24th Sep 20264610 PMAQI
24th Sep 20264711 PMAQI
25th Sep 20263712 AMAQI
25th Sep 2026321 AMAQI
25th Sep 2026262 AMAQI
25th Sep 2026263 AMAQI
25th Sep 2026244 AMAQI

24°C20/29°C

25th Sep 2026285 AMAQI
25th Sep 2026276 AMAQI
25th Sep 2026247 AMAQI
25th Sep 2026248 AMAQI
25th Sep 2026249 AMAQI
25th Sep 20262410 AMAQI
25th Sep 20262511 AMAQI
25th Sep 20262412 PMAQI
25th Sep 2026241 PMAQI
25th Sep 2026242 PMAQI
25th Sep 2026283 PMAQI
25th Sep 2026294 PMAQI
25th Sep 2026225 PMAQI
25th Sep 2026236 PMAQI
25th Sep 2026227 PMAQI
25th Sep 2026248 PMAQI
25th Sep 2026239 PMAQI
25th Sep 20262210 PMAQI
25th Sep 20262811 PMAQI
26th Sep 20262812 AMAQI
26th Sep 2026241 AMAQI
26th Sep 2026252 AMAQI
26th Sep 2026233 AMAQI
26th Sep 2026234 AMAQI

24°C23/27°C

26th Sep 2026235 AMAQI
26th Sep 2026246 AMAQI
26th Sep 2026227 AMAQI
26th Sep 2026248 AMAQI
26th Sep 2026249 AMAQI
26th Sep 20262710 AMAQI
26th Sep 20262511 AMAQI
26th Sep 20262312 PMAQI
26th Sep 2026241 PMAQI
26th Sep 2026262 PMAQI
26th Sep 2026253 PMAQI
26th Sep 2026264 PMAQI
26th Sep 2026265 PMAQI
26th Sep 2026256 PMAQI
26th Sep 2026257 PMAQI
26th Sep 2026278 PMAQI
26th Sep 2026249 PMAQI
26th Sep 20262410 PMAQI
26th Sep 20262611 PMAQI
27th Sep 20262712 AMAQI
27th Sep 2026251 AMAQI
27th Sep 2026232 AMAQI
27th Sep 2026223 AMAQI
27th Sep 2026214 AMAQI

19°C17/23°C

27th Sep 2026245 AMAQI
27th Sep 2026226 AMAQI
27th Sep 2026237 AMAQI
27th Sep 2026228 AMAQI
27th Sep 2026249 AMAQI
27th Sep 20262410 AMAQI
27th Sep 20262611 AMAQI
27th Sep 20262612 PMAQI
27th Sep 2026261 PMAQI
27th Sep 2026282 PMAQI
27th Sep 2026243 PMAQI
27th Sep 2026234 PMAQI
27th Sep 2026245 PMAQI
27th Sep 2026266 PMAQI
27th Sep 2026287 PMAQI
27th Sep 2026248 PMAQI
27th Sep 2026259 PMAQI
27th Sep 20262210 PMAQI
27th Sep 20262311 PMAQI
28th Sep 20262612 AMAQI
28th Sep 2026261 AMAQI
28th Sep 2026252 AMAQI
28th Sep 2026263 AMAQI
28th Sep 2026274 AMAQI

21°C18/24°C

28th Sep 2026305 AMAQI
28th Sep 2026476 AMAQI
28th Sep 2026507 AMAQI
28th Sep 2026558 AMAQI
28th Sep 2026619 AMAQI
28th Sep 20266810 AMAQI
28th Sep 20266411 AMAQI
28th Sep 20265812 PMAQI
28th Sep 2026651 PMAQI
28th Sep 2026552 PMAQI
28th Sep 2026393 PMAQI
28th Sep 2026414 PMAQI
28th Sep 2026555 PMAQI
28th Sep 2026446 PMAQI
28th Sep 2026497 PMAQI
28th Sep 2026448 PMAQI
28th Sep 2026399 PMAQI
28th Sep 20265610 PMAQI
28th Sep 20266211 PMAQI
29th Sep 20265812 AMAQI
29th Sep 2026501 AMAQI
29th Sep 2026502 AMAQI
29th Sep 2026523 AMAQI
29th Sep 2026474 AMAQI

22°C21/24°C

29th Sep 2026245 AMAQI
29th Sep 2026236 AMAQI
29th Sep 2026227 AMAQI
29th Sep 2026258 AMAQI
29th Sep 2026259 AMAQI
29th Sep 20262210 AMAQI
29th Sep 20262611 AMAQI
29th Sep 20262312 PMAQI
29th Sep 2026231 PMAQI
29th Sep 2026222 PMAQI
29th Sep 2026253 PMAQI
29th Sep 2026214 PMAQI
29th Sep 2026215 PMAQI
29th Sep 2026256 PMAQI
29th Sep 2026237 PMAQI
29th Sep 2026228 PMAQI
29th Sep 2026229 PMAQI
29th Sep 20262510 PMAQI
29th Sep 20262611 PMAQI
30th Sep 20262712 AMAQI
30th Sep 2026411 AMAQI
30th Sep 2026542 AMAQI
30th Sep 2026233 AMAQI
30th Sep 2026454 AMAQI

19°C18/22°C

30th Sep 2026295 AMAQI
30th Sep 2026346 AMAQI
30th Sep 2026317 AMAQI
30th Sep 2026608 AMAQI
30th Sep 2026489 AMAQI
30th Sep 20262610 AMAQI
30th Sep 20262311 AMAQI
30th Sep 20262012 PMAQI
30th Sep 2026261 PMAQI
30th Sep 2026242 PMAQI
30th Sep 2026223 PMAQI
30th Sep 2026234 PMAQI
30th Sep 2026265 PMAQI
30th Sep 2026256 PMAQI
30th Sep 2026237 PMAQI
30th Sep 2026228 PMAQI
30th Sep 2026259 PMAQI
30th Sep 20262710 PMAQI
30th Sep 20262411 PMAQI
1st Oct 20262112 AMAQI
1st Oct 2026221 AMAQI
1st Oct 2026222 AMAQI
1st Oct 2026243 AMAQI
1st Oct 2026254 AMAQI

19°C18/20°C

1st Oct 2026235 AMAQI
5 AM
1st Oct 2026306 AMAQI
1st Oct 2026417 AMAQI
1st Oct 2026508 AMAQI
1st Oct 2026519 AMAQI
1st Oct 20262710 AMAQI
1st Oct 20262311 AMAQI
11 AM
1st Oct 20262312 PMAQI
1st Oct 2026221 PMAQI
1st Oct 2026232 PMAQI
1st Oct 2026203 PMAQI
1st Oct 2026214 PMAQI
1st Oct 2026245 PMAQI
5 PM
1st Oct 2026226 PMAQI
1st Oct 2026267 PMAQI
1st Oct 2026238 PMAQI
1st Oct 2026229 PMAQI
1st Oct 20262910 PMAQI
1st Oct 20263711 PMAQI
11 PM
4 AM

23°C19/28°C

Day time
Avg. Highest Time
11 AM - 2 PM

28AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
6 AM

25AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 2 PM (Avg. 28), while the lowest AQI was between 6 AM to 6 AM (Avg. 25).
Night time
Avg. Highest Time
11 PM

30AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
1 AM - 8 PM

27AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 30), while the lowest AQI was between 1 AM to 8 PM (Avg. 27).

2026 Days Vs Air Quality

Honcho, Tokyo, Japan

2026

87%

238

13%

36

Total number of days with different AQI categories in last 274 days in 2026 (91 days remaining)

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

Under WHO’s Safe Air Quality Limits: 87%

Health Risk Level:

Low

In 2026, 87% of 274 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

Honcho, 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
18AQI (US)
4th January 2026
23AQI (US)
5th January 2026
37AQI (US)
6th January 2026
14AQI (US)
7th January 2026
25AQI (US)
8th January 2026
32AQI (US)
9th January 2026
18AQI (US)
10th January 2026
34AQI (US)
11th January 2026
30AQI (US)
12th January 2026
17AQI (US)
13th January 2026
32AQI (US)
14th January 2026
17AQI (US)
15th January 2026
28AQI (US)
16th January 2026
50AQI (US)
17th January 2026
52AQI (US)
18th January 2026
29AQI (US)
19th January 2026
43AQI (US)
20th January 2026
41AQI (US)
21st January 2026
13AQI (US)
22nd January 2026
23AQI (US)
23rd January 2026
38AQI (US)
24th January 2026
40AQI (US)
25th January 2026
44AQI (US)
26th January 2026
30AQI (US)
27th January 2026
40AQI (US)
28th January 2026
11AQI (US)
29th January 2026
17AQI (US)
30th January 2026
34AQI (US)
31st January 2026
36AQI (US)
1st February 2026
39AQI (US)
2nd February 2026
44AQI (US)
3rd February 2026
31AQI (US)
4th February 2026
39AQI (US)
5th February 2026
52AQI (US)
6th February 2026
48AQI (US)
7th February 2026
13AQI (US)
8th February 2026
15AQI (US)
9th February 2026
34AQI (US)
10th February 2026
37AQI (US)
11th February 2026
52AQI (US)
12th February 2026
29AQI (US)
13th February 2026
42AQI (US)
14th February 2026
50AQI (US)
15th February 2026
55AQI (US)
16th February 2026
42AQI (US)
17th February 2026
18AQI (US)
18th February 2026
34AQI (US)
19th February 2026
30AQI (US)
20th February 2026
22AQI (US)
21st February 2026
48AQI (US)
22nd February 2026
44AQI (US)
23rd February 2026
38AQI (US)
24th February 2026
35AQI (US)
25th February 2026
36AQI (US)
26th February 2026
11AQI (US)
27th February 2026
36AQI (US)
28th February 2026
44AQI (US)
1st March 2026
36AQI (US)
2nd March 2026
82AQI (US)
3rd March 2026
46AQI (US)
4th March 2026
60AQI (US)
5th March 2026
57AQI (US)
6th March 2026
53AQI (US)
7th March 2026
43AQI (US)
8th March 2026
26AQI (US)
9th March 2026
38AQI (US)
10th March 2026
58AQI (US)
11th March 2026
58AQI (US)
12th March 2026
69AQI (US)
13th March 2026
44AQI (US)
14th March 2026
45AQI (US)
15th March 2026
55AQI (US)
16th March 2026
54AQI (US)
17th March 2026
54AQI (US)
18th March 2026
57AQI (US)
19th March 2026
34AQI (US)
20th March 2026
30AQI (US)
21st March 2026
53AQI (US)
22nd March 2026
49AQI (US)
23rd March 2026
53AQI (US)
24th March 2026
55AQI (US)
25th March 2026
60AQI (US)
26th March 2026
31AQI (US)
27th March 2026
23AQI (US)
28th March 2026
49AQI (US)
29th March 2026
52AQI (US)
30th March 2026
57AQI (US)
31st March 2026
25AQI (US)
1st April 2026
24AQI (US)
2nd April 2026
36AQI (US)
3rd April 2026
43AQI (US)
4th April 2026
44AQI (US)
5th April 2026
37AQI (US)
6th April 2026
28AQI (US)
7th April 2026
38AQI (US)
8th April 2026
22AQI (US)
9th April 2026
32AQI (US)
10th April 2026
46AQI (US)
11th April 2026
43AQI (US)
12th April 2026
26AQI (US)
13th April 2026
36AQI (US)
14th April 2026
40AQI (US)
15th April 2026
40AQI (US)
16th April 2026
34AQI (US)
17th April 2026
38AQI (US)
18th April 2026
33AQI (US)
19th April 2026
40AQI (US)
20th April 2026
38AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
46AQI (US)
23rd April 2026
36AQI (US)
24th April 2026
32AQI (US)
25th April 2026
45AQI (US)
26th April 2026
51AQI (US)
27th April 2026
49AQI (US)
28th April 2026
42AQI (US)
29th April 2026
39AQI (US)
30th April 2026
38AQI (US)
1st May 2026
48AQI (US)
2nd May 2026
52AQI (US)
3rd May 2026
46AQI (US)
4th May 2026
28AQI (US)
5th May 2026
21AQI (US)
6th May 2026
32AQI (US)
7th May 2026
33AQI (US)
8th May 2026
25AQI (US)
9th May 2026
25AQI (US)
10th May 2026
28AQI (US)
11th May 2026
31AQI (US)
12th May 2026
37AQI (US)
13th May 2026
48AQI (US)
14th May 2026
34AQI (US)
15th May 2026
38AQI (US)
16th May 2026
86AQI (US)
17th May 2026
69AQI (US)
18th May 2026
53AQI (US)
19th May 2026
48AQI (US)
20th May 2026
62AQI (US)
21st May 2026
59AQI (US)
22nd May 2026
60AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
58AQI (US)
25th May 2026
47AQI (US)
26th May 2026
40AQI (US)
27th May 2026
25AQI (US)
28th May 2026
25AQI (US)
29th May 2026
26AQI (US)
30th May 2026
23AQI (US)
31st May 2026
29AQI (US)
1st June 2026
35AQI (US)
2nd June 2026
31AQI (US)
3rd June 2026
26AQI (US)
4th June 2026
23AQI (US)
5th June 2026
22AQI (US)
6th June 2026
21AQI (US)
7th June 2026
23AQI (US)
8th June 2026
21AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
24AQI (US)
12th June 2026
25AQI (US)
13th June 2026
35AQI (US)
14th June 2026
32AQI (US)
15th June 2026
17AQI (US)
16th June 2026
26AQI (US)
17th June 2026
24AQI (US)
18th June 2026
25AQI (US)
19th June 2026
30AQI (US)
20th June 2026
23AQI (US)
21st June 2026
18AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
22AQI (US)
25th June 2026
27AQI (US)
26th June 2026
29AQI (US)
27th June 2026
26AQI (US)
28th June 2026
28AQI (US)
29th June 2026
28AQI (US)
30th June 2026
26AQI (US)
1st July 2026
29AQI (US)
2nd July 2026
23AQI (US)
3rd July 2026
17AQI (US)
4th July 2026
32AQI (US)
5th July 2026
17AQI (US)
6th July 2026
25AQI (US)
7th July 2026
26AQI (US)
8th July 2026
25AQI (US)
9th July 2026
24AQI (US)
10th July 2026
22AQI (US)
11th July 2026
26AQI (US)
12th July 2026
26AQI (US)
13th July 2026
29AQI (US)
14th July 2026
32AQI (US)
15th July 2026
30AQI (US)
16th July 2026
50AQI (US)
17th July 2026
46AQI (US)
18th July 2026
25AQI (US)
19th July 2026
22AQI (US)
20th July 2026
32AQI (US)
21st July 2026
48AQI (US)
22nd July 2026
64AQI (US)
23rd July 2026
56AQI (US)
24th July 2026
45AQI (US)
25th July 2026
38AQI (US)
26th July 2026
24AQI (US)
27th July 2026
24AQI (US)
28th July 2026
29AQI (US)
29th July 2026
34AQI (US)
30th July 2026
35AQI (US)
31st July 2026
54AQI (US)
1st August 2026
61AQI (US)
2nd August 2026
46AQI (US)
3rd August 2026
18AQI (US)
4th August 2026
26AQI (US)
5th August 2026
28AQI (US)
6th August 2026
26AQI (US)
7th August 2026
27AQI (US)
8th August 2026
24AQI (US)
9th August 2026
27AQI (US)
10th August 2026
27AQI (US)
11th August 2026
33AQI (US)
12th August 2026
24AQI (US)
13th August 2026
28AQI (US)
14th August 2026
23AQI (US)
15th August 2026
28AQI (US)
16th August 2026
26AQI (US)
17th August 2026
25AQI (US)
18th August 2026
25AQI (US)
19th August 2026
28AQI (US)
20th August 2026
27AQI (US)
21st August 2026
30AQI (US)
22nd August 2026
39AQI (US)
23rd August 2026
50AQI (US)
24th August 2026
52AQI (US)
25th August 2026
37AQI (US)
26th August 2026
46AQI (US)
27th August 2026
32AQI (US)
28th August 2026
22AQI (US)
29th August 2026
26AQI (US)
30th August 2026
29AQI (US)
31st August 2026
28AQI (US)
1st September 2026
25AQI (US)
2nd September 2026
32AQI (US)
3rd September 2026
27AQI (US)
4th September 2026
25AQI (US)
5th September 2026
25AQI (US)
6th September 2026
26AQI (US)
7th September 2026
21AQI (US)
8th September 2026
27AQI (US)
9th September 2026
26AQI (US)
10th September 2026
26AQI (US)
11th September 2026
26AQI (US)
12th September 2026
24AQI (US)
13th September 2026
32AQI (US)
14th September 2026
25AQI (US)
15th September 2026
24AQI (US)
16th September 2026
28AQI (US)
17th September 2026
22AQI (US)
18th September 2026
26AQI (US)
19th September 2026
30AQI (US)
20th September 2026
28AQI (US)
21st September 2026
15AQI (US)
22nd September 2026
30AQI (US)
23rd September 2026
29AQI (US)
24th September 2026
34AQI (US)
25th September 2026
26AQI (US)
26th September 2026
25AQI (US)
27th September 2026
24AQI (US)
28th September 2026
46AQI (US)
29th September 2026
29AQI (US)
30th September 2026
30AQI (US)
1st October 2026
27AQI (US)
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

29AQI (US)

36AQI (US)

49AQI (US)

38AQI (US)

42AQI (US)

25AQI (US)

33AQI (US)

31AQI (US)

27AQI (US)

27AQI (US)

No. of days

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

202634AQI (US)

30
1
25
3
14
17
29
1
22
9
30
28
3
29
2
30
1
238
36

Highest AQI (US) recorded in

March

49AQI (US)

Lowest AQI (US) recorded in

June

25AQI (US)

202534AQI (US)

31
28
28
3
30
31
30
23
8
23
8
30
21
10
23
7
21
10
319
46

Highest AQI (US) recorded in

July

46AQI (US)

Lowest AQI (US) recorded in

May

21AQI (US)

202432AQI (US)

31
29
30
1
28
2
31
29
1
22
9
31
28
2
30
1
29
1
31
349
17

Highest AQI (US) recorded in

July

41AQI (US)

Lowest AQI (US) recorded in

December

25AQI (US)

202333AQI (US)

31
27
1
28
3
24
6
29
2
29
1
29
2
31
30
31
27
2
31
347
17

Highest AQI (US) recorded in

April

41AQI (US)

Lowest AQI (US) recorded in

August

25AQI (US)

202230AQI (US)

31
21
1
31
27
3
30
1
28
2
22
1
1
28
31
30
31
311
8

Highest AQI (US) recorded in

April

36AQI (US)

Lowest AQI (US) recorded in

August

22AQI (US)

202122AQI (US)

31
28
30
1
30
31
30
31
29
2
30
30
1
30
31
361
4

Highest AQI (US) recorded in

May

29AQI (US)

Lowest AQI (US) recorded in

February

13AQI (US)

202018AQI (US)

13
21
18
30
31
31
19
31
30
31
255

Highest AQI (US) recorded in

August

30AQI (US)

Lowest AQI (US) recorded in

September

12AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2026(Avg.)
34AQI (US)
Least Polluted Year Recorded
2020(Avg.)
18AQI (US)

Honcho's annual 2026 AQI (US) (34) shows an average percentage change of 27.6% (worsened AQI (US)) compared to previous years: 2020 (18), 2021 (22), 2022 (30), 2023 (33), 2024 (32), 2025 (34).