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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Sendai, Miyagi, 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

Sendai, Miyagi, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Oct 2025
63AQI
Lowest AQI recorded on
10th Oct 2023
13AQI

Same Day Analysis (2nd October):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 24 of Good air quality, showing improvement over 2025, 2024 and 2022 on the same day.

Day & Night AQI Trend: 1st Oct - 2nd Oct 2026

Sendai, Miyagi, Japan

AQI
Day
Night
.

5 AM1st Oct 2026

5 PM

4 AM2nd Oct 2026

Day time
Avg. Highest Time
6AM1st Oct

24AQI

Avg. Lowest Time
5AM1st Oct

21AQI

Night time
Avg. Highest Time
6PM1st Oct

23AQI

Avg. Lowest Time
11PM1st Oct

21AQI

In the last 24 hours,

Sendai's AQI reached its highest point of 24 at 6 AM during the Day, while the lowest point, 21, was recorded at 11 PM during the Night between 1st Oct and 2nd Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Sendai, Miyagi, Japan

SepOct
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 - 01st01st - 02nd02nd
Day
Night
3rd Sep 2026455 AMAQI
3rd Sep 2026286 AMAQI
3rd Sep 2026227 AMAQI
3rd Sep 2026228 AMAQI
3rd Sep 2026269 AMAQI
3rd Sep 20262510 AMAQI
3rd Sep 20262111 AMAQI
3rd Sep 20262312 PMAQI
3rd Sep 2026311 PMAQI
3rd Sep 2026372 PMAQI
3rd Sep 2026393 PMAQI
3rd Sep 2026334 PMAQI
3rd Sep 2026255 PMAQI
3rd Sep 2026296 PMAQI
3rd Sep 2026257 PMAQI
3rd Sep 2026288 PMAQI
3rd Sep 2026259 PMAQI
3rd Sep 20262310 PMAQI
3rd Sep 20262211 PMAQI
4th Sep 20262812 AMAQI
4th Sep 2026231 AMAQI
4th Sep 2026232 AMAQI
4th Sep 2026253 AMAQI
4th Sep 2026274 AMAQI

21°C20/22°C

4th Sep 2026295 AMAQI
4th Sep 2026296 AMAQI
4th Sep 2026277 AMAQI
4th Sep 2026268 AMAQI
4th Sep 2026279 AMAQI
4th Sep 20262410 AMAQI
4th Sep 20262311 AMAQI
4th Sep 20262412 PMAQI
4th Sep 2026261 PMAQI
4th Sep 2026272 PMAQI
4th Sep 2026263 PMAQI
4th Sep 2026254 PMAQI
4th Sep 2026225 PMAQI
4th Sep 2026256 PMAQI
4th Sep 2026257 PMAQI
4th Sep 2026238 PMAQI
4th Sep 2026249 PMAQI
4th Sep 20262410 PMAQI
4th Sep 20262211 PMAQI
5th Sep 20262512 AMAQI
5th Sep 2026241 AMAQI
5th Sep 2026212 AMAQI
5th Sep 2026213 AMAQI
5th Sep 2026224 AMAQI

21°C19/25°C

5th Sep 2026245 AMAQI
5th Sep 2026236 AMAQI
5th Sep 2026257 AMAQI
5th Sep 2026258 AMAQI
5th Sep 2026259 AMAQI
5th Sep 20262510 AMAQI
5th Sep 20262411 AMAQI
5th Sep 20262312 PMAQI
5th Sep 2026231 PMAQI
5th Sep 2026242 PMAQI
5th Sep 2026243 PMAQI
5th Sep 2026244 PMAQI
5th Sep 2026245 PMAQI
5th Sep 2026236 PMAQI
5th Sep 2026217 PMAQI
5th Sep 2026278 PMAQI
5th Sep 2026299 PMAQI
5th Sep 20262510 PMAQI
5th Sep 20262511 PMAQI
6th Sep 20262412 AMAQI
6th Sep 2026231 AMAQI
6th Sep 2026232 AMAQI
6th Sep 2026233 AMAQI
6th Sep 2026214 AMAQI

20°C17/24°C

6th Sep 2026225 AMAQI
6th Sep 2026216 AMAQI
6th Sep 2026217 AMAQI
6th Sep 2026228 AMAQI
6th Sep 2026239 AMAQI
6th Sep 20262210 AMAQI
6th Sep 20262411 AMAQI
6th Sep 20262212 PMAQI
6th Sep 2026221 PMAQI
6th Sep 2026212 PMAQI
6th Sep 2026223 PMAQI
6th Sep 2026214 PMAQI
6th Sep 2026215 PMAQI
6th Sep 2026216 PMAQI
6th Sep 2026227 PMAQI
6th Sep 2026228 PMAQI
6th Sep 2026249 PMAQI
6th Sep 20262410 PMAQI
6th Sep 20262511 PMAQI
7th Sep 20262812 AMAQI
7th Sep 2026331 AMAQI
7th Sep 2026342 AMAQI
7th Sep 2026383 AMAQI
7th Sep 2026404 AMAQI

18°C16/20°C

7th Sep 2026445 AMAQI
7th Sep 2026546 AMAQI
7th Sep 2026537 AMAQI
7th Sep 2026458 AMAQI
7th Sep 2026369 AMAQI
7th Sep 20262610 AMAQI
7th Sep 20262311 AMAQI
7th Sep 20262112 PMAQI
7th Sep 2026221 PMAQI
7th Sep 2026252 PMAQI
7th Sep 2026183 PMAQI
7th Sep 2026184 PMAQI
7th Sep 2026195 PMAQI
7th Sep 2026176 PMAQI
7th Sep 2026177 PMAQI
7th Sep 2026228 PMAQI
7th Sep 2026229 PMAQI
7th Sep 20262410 PMAQI
7th Sep 20262411 PMAQI
8th Sep 20262912 AMAQI
8th Sep 2026241 AMAQI
8th Sep 2026242 AMAQI
8th Sep 2026233 AMAQI
8th Sep 2026214 AMAQI

21°C19/23°C

8th Sep 2026215 AMAQI
8th Sep 2026176 AMAQI
8th Sep 2026187 AMAQI
8th Sep 2026198 AMAQI
8th Sep 2026189 AMAQI
8th Sep 20261610 AMAQI
8th Sep 20261711 AMAQI
8th Sep 20261912 PMAQI
8th Sep 2026231 PMAQI
8th Sep 2026242 PMAQI
8th Sep 2026243 PMAQI
8th Sep 2026214 PMAQI
8th Sep 2026215 PMAQI
8th Sep 2026216 PMAQI
8th Sep 2026217 PMAQI
8th Sep 2026208 PMAQI
8th Sep 2026219 PMAQI
8th Sep 20262110 PMAQI
8th Sep 20262011 PMAQI
9th Sep 20261912 AMAQI
9th Sep 2026181 AMAQI
9th Sep 2026212 AMAQI
9th Sep 2026263 AMAQI
9th Sep 2026254 AMAQI

20°C18/21°C

9th Sep 2026235 AMAQI
9th Sep 2026236 AMAQI
9th Sep 2026257 AMAQI
9th Sep 2026258 AMAQI
9th Sep 2026279 AMAQI
9th Sep 20262810 AMAQI
9th Sep 20262511 AMAQI
9th Sep 20262512 PMAQI
9th Sep 2026251 PMAQI
9th Sep 2026242 PMAQI
9th Sep 2026243 PMAQI
9th Sep 2026244 PMAQI
9th Sep 2026245 PMAQI
9th Sep 2026216 PMAQI
9th Sep 2026237 PMAQI
9th Sep 2026258 PMAQI
9th Sep 2026259 PMAQI
9th Sep 20262310 PMAQI
9th Sep 20262111 PMAQI
10th Sep 20262112 AMAQI
10th Sep 2026211 AMAQI
10th Sep 2026222 AMAQI
10th Sep 2026243 AMAQI
10th Sep 2026244 AMAQI

19°C17/21°C

10th Sep 2026225 AMAQI
10th Sep 2026246 AMAQI
10th Sep 2026287 AMAQI
10th Sep 2026238 AMAQI
10th Sep 2026239 AMAQI
10th Sep 20262710 AMAQI
10th Sep 20262611 AMAQI
10th Sep 20262412 PMAQI
10th Sep 2026251 PMAQI
10th Sep 2026262 PMAQI
10th Sep 2026263 PMAQI
10th Sep 2026254 PMAQI
10th Sep 2026235 PMAQI
10th Sep 2026236 PMAQI
10th Sep 2026237 PMAQI
10th Sep 2026238 PMAQI
10th Sep 2026299 PMAQI
10th Sep 20262610 PMAQI
10th Sep 20262111 PMAQI
11th Sep 20262412 AMAQI
11th Sep 2026261 AMAQI
11th Sep 2026242 AMAQI
11th Sep 2026253 AMAQI
11th Sep 2026254 AMAQI

17°C16/19°C

11th Sep 2026235 AMAQI
11th Sep 2026226 AMAQI
11th Sep 2026237 AMAQI
11th Sep 2026248 AMAQI
11th Sep 2026249 AMAQI
11th Sep 20262410 AMAQI
11th Sep 20262511 AMAQI
11th Sep 20262612 PMAQI
11th Sep 2026261 PMAQI
11th Sep 2026232 PMAQI
11th Sep 2026233 PMAQI
11th Sep 2026234 PMAQI
11th Sep 2026235 PMAQI
11th Sep 2026246 PMAQI
11th Sep 2026227 PMAQI
11th Sep 2026218 PMAQI
11th Sep 2026239 PMAQI
11th Sep 20262510 PMAQI
11th Sep 20262511 PMAQI
12th Sep 20262512 AMAQI
12th Sep 2026241 AMAQI
12th Sep 2026222 AMAQI
12th Sep 2026233 AMAQI
12th Sep 2026274 AMAQI

17°C16/19°C

12th Sep 2026255 AMAQI
12th Sep 2026236 AMAQI
12th Sep 2026277 AMAQI
12th Sep 2026278 AMAQI
12th Sep 2026269 AMAQI
12th Sep 20262510 AMAQI
12th Sep 20262411 AMAQI
12th Sep 20262212 PMAQI
12th Sep 2026221 PMAQI
12th Sep 2026232 PMAQI
12th Sep 2026253 PMAQI
12th Sep 2026254 PMAQI
12th Sep 2026235 PMAQI
12th Sep 2026236 PMAQI
12th Sep 2026227 PMAQI
12th Sep 2026228 PMAQI
12th Sep 2026229 PMAQI
12th Sep 20262210 PMAQI
12th Sep 20262311 PMAQI
13th Sep 20262212 AMAQI
13th Sep 2026231 AMAQI
13th Sep 2026232 AMAQI
13th Sep 2026233 AMAQI
13th Sep 2026234 AMAQI

20°C16/24°C

13th Sep 2026226 AMAQI
13th Sep 2026247 AMAQI
13th Sep 2026238 AMAQI
13th Sep 2026249 AMAQI
13th Sep 20262410 AMAQI
13th Sep 20262411 AMAQI
13th Sep 20262412 PMAQI
13th Sep 2026231 PMAQI
13th Sep 2026222 PMAQI
13th Sep 2026223 PMAQI
13th Sep 2026224 PMAQI
13th Sep 2026235 PMAQI
13th Sep 2026226 PMAQI
13th Sep 2026237 PMAQI
13th Sep 2026248 PMAQI
13th Sep 2026259 PMAQI
13th Sep 20262210 PMAQI
13th Sep 20262311 PMAQI
14th Sep 20262212 AMAQI
14th Sep 2026341 AMAQI
14th Sep 2026412 AMAQI
14th Sep 2026383 AMAQI
14th Sep 2026404 AMAQI

19°C17/22°C

14th Sep 2026395 AMAQI
14th Sep 2026276 AMAQI
14th Sep 2026277 AMAQI
14th Sep 2026278 AMAQI
14th Sep 2026269 AMAQI
14th Sep 20262510 AMAQI
14th Sep 20262311 AMAQI
14th Sep 20262312 PMAQI
14th Sep 2026251 PMAQI
14th Sep 2026302 PMAQI
14th Sep 2026293 PMAQI
14th Sep 2026264 PMAQI
14th Sep 2026285 PMAQI
14th Sep 2026366 PMAQI
14th Sep 2026397 PMAQI
14th Sep 2026338 PMAQI
14th Sep 2026309 PMAQI
14th Sep 20262210 PMAQI
14th Sep 20262911 PMAQI
15th Sep 20262612 AMAQI
15th Sep 2026281 AMAQI
15th Sep 2026312 AMAQI
15th Sep 2026283 AMAQI
15th Sep 2026274 AMAQI

22°C19/28°C

15th Sep 2026275 AMAQI
15th Sep 2026256 AMAQI
15th Sep 2026257 AMAQI
15th Sep 2026188 AMAQI
15th Sep 2026229 AMAQI
15th Sep 20262410 AMAQI
15th Sep 20262111 AMAQI
15th Sep 20261712 PMAQI
15th Sep 2026201 PMAQI
15th Sep 2026202 PMAQI
15th Sep 2026203 PMAQI
15th Sep 2026264 PMAQI
15th Sep 2026275 PMAQI
15th Sep 2026286 PMAQI
15th Sep 2026257 PMAQI
15th Sep 2026248 PMAQI
15th Sep 2026239 PMAQI
15th Sep 20262610 PMAQI
15th Sep 20262411 PMAQI
16th Sep 20262512 AMAQI
16th Sep 2026261 AMAQI
16th Sep 2026272 AMAQI
16th Sep 2026283 AMAQI
16th Sep 2026244 AMAQI

18°C17/20°C

16th Sep 2026255 AMAQI
16th Sep 2026226 AMAQI
16th Sep 2026247 AMAQI
16th Sep 2026258 AMAQI
16th Sep 2026259 AMAQI
16th Sep 20262410 AMAQI
16th Sep 20262411 AMAQI
16th Sep 20262412 PMAQI
16th Sep 2026241 PMAQI
16th Sep 2026242 PMAQI
16th Sep 2026243 PMAQI
16th Sep 2026254 PMAQI
16th Sep 2026235 PMAQI
16th Sep 2026246 PMAQI
16th Sep 2026217 PMAQI
16th Sep 2026228 PMAQI
16th Sep 2026249 PMAQI
16th Sep 20262710 PMAQI
16th Sep 20262511 PMAQI
17th Sep 20262412 AMAQI
17th Sep 2026231 AMAQI
17th Sep 2026252 AMAQI
17th Sep 2026253 AMAQI
17th Sep 2026234 AMAQI

17°C16/18°C

17th Sep 2026235 AMAQI
17th Sep 2026246 AMAQI
17th Sep 2026247 AMAQI
17th Sep 2026258 AMAQI
17th Sep 2026219 AMAQI
17th Sep 20262110 AMAQI
17th Sep 20262211 AMAQI
17th Sep 20262212 PMAQI
17th Sep 2026261 PMAQI
17th Sep 2026252 PMAQI
17th Sep 2026243 PMAQI
17th Sep 2026244 PMAQI
17th Sep 2026235 PMAQI
17th Sep 2026226 PMAQI
17th Sep 2026227 PMAQI
17th Sep 2026228 PMAQI
17th Sep 2026229 PMAQI
17th Sep 20262310 PMAQI
17th Sep 20262211 PMAQI
18th Sep 20262212 AMAQI
18th Sep 2026221 AMAQI
18th Sep 2026222 AMAQI
18th Sep 2026223 AMAQI
18th Sep 2026224 AMAQI

17°C15/20°C

18th Sep 2026215 AMAQI
18th Sep 2026226 AMAQI
18th Sep 2026237 AMAQI
18th Sep 2026218 AMAQI
18th Sep 2026219 AMAQI
18th Sep 20262210 AMAQI
18th Sep 20262211 AMAQI
18th Sep 20262212 PMAQI
18th Sep 2026221 PMAQI
18th Sep 2026222 PMAQI
18th Sep 2026233 PMAQI
18th Sep 2026244 PMAQI
18th Sep 2026235 PMAQI
18th Sep 2026236 PMAQI
18th Sep 2026237 PMAQI
18th Sep 2026258 PMAQI
18th Sep 2026229 PMAQI
18th Sep 20262210 PMAQI
18th Sep 20262411 PMAQI
19th Sep 20262412 AMAQI
19th Sep 2026261 AMAQI
19th Sep 2026252 AMAQI
19th Sep 2026243 AMAQI
19th Sep 2026214 AMAQI

17°C16/18°C

19th Sep 2026215 AMAQI
19th Sep 2026216 AMAQI
19th Sep 2026257 AMAQI
19th Sep 2026218 AMAQI
19th Sep 2026239 AMAQI
19th Sep 20262510 AMAQI
19th Sep 20262411 AMAQI
19th Sep 20262412 PMAQI
19th Sep 2026231 PMAQI
19th Sep 2026222 PMAQI
19th Sep 2026223 PMAQI
19th Sep 2026244 PMAQI
19th Sep 2026235 PMAQI
19th Sep 2026236 PMAQI
19th Sep 2026247 PMAQI
19th Sep 2026268 PMAQI
19th Sep 2026239 PMAQI
19th Sep 20262510 PMAQI
19th Sep 20262511 PMAQI
20th Sep 20262312 AMAQI
20th Sep 2026221 AMAQI
20th Sep 2026242 AMAQI
20th Sep 2026253 AMAQI
20th Sep 2026244 AMAQI

19°C17/20°C

20th Sep 2026265 AMAQI
20th Sep 2026246 AMAQI
20th Sep 2026257 AMAQI
20th Sep 2026258 AMAQI
20th Sep 2026279 AMAQI
20th Sep 20262510 AMAQI
20th Sep 20262311 AMAQI
20th Sep 20262212 PMAQI
20th Sep 2026161 PMAQI
20th Sep 2026212 PMAQI
20th Sep 2026213 PMAQI
20th Sep 2026234 PMAQI
20th Sep 2026235 PMAQI
20th Sep 2026236 PMAQI
20th Sep 2026247 PMAQI
20th Sep 2026238 PMAQI
20th Sep 2026249 PMAQI
20th Sep 20262410 PMAQI
20th Sep 20262311 PMAQI
21st Sep 20262312 AMAQI
21st Sep 2026221 AMAQI
21st Sep 2026242 AMAQI
21st Sep 2026223 AMAQI
21st Sep 2026204 AMAQI

20°C19/21°C

21st Sep 2026205 AMAQI
21st Sep 2026186 AMAQI
21st Sep 2026137 AMAQI
21st Sep 2026178 AMAQI
21st Sep 2026189 AMAQI
21st Sep 20261810 AMAQI
21st Sep 20261811 AMAQI
21st Sep 20261812 PMAQI
21st Sep 2026191 PMAQI
21st Sep 2026172 PMAQI
21st Sep 2026183 PMAQI
21st Sep 2026184 PMAQI
21st Sep 2026165 PMAQI
21st Sep 202696 PMAQI
21st Sep 2026167 PMAQI
21st Sep 2026168 PMAQI
21st Sep 2026159 PMAQI
21st Sep 20261510 PMAQI
21st Sep 20261511 PMAQI
22nd Sep 20261512 AMAQI
22nd Sep 2026151 AMAQI
22nd Sep 2026352 AMAQI
22nd Sep 2026483 AMAQI
22nd Sep 2026404 AMAQI

20°C19/21°C

22nd Sep 2026255 AMAQI
22nd Sep 2026166 AMAQI
22nd Sep 2026187 AMAQI
22nd Sep 2026168 AMAQI
22nd Sep 2026169 AMAQI
22nd Sep 20261910 AMAQI
22nd Sep 20261711 AMAQI
22nd Sep 20261712 PMAQI
22nd Sep 2026201 PMAQI
22nd Sep 2026222 PMAQI
22nd Sep 2026243 PMAQI
22nd Sep 2026244 PMAQI
22nd Sep 2026245 PMAQI
22nd Sep 2026246 PMAQI
22nd Sep 2026247 PMAQI
22nd Sep 2026248 PMAQI
22nd Sep 2026249 PMAQI
22nd Sep 20262410 PMAQI
22nd Sep 20262311 PMAQI
23rd Sep 20262412 AMAQI
23rd Sep 2026221 AMAQI
23rd Sep 2026242 AMAQI
23rd Sep 2026273 AMAQI
23rd Sep 2026244 AMAQI

21°C16/26°C

23rd Sep 2026235 AMAQI
23rd Sep 2026236 AMAQI
23rd Sep 2026237 AMAQI
23rd Sep 2026258 AMAQI
23rd Sep 2026249 AMAQI
23rd Sep 20262410 AMAQI
23rd Sep 20262411 AMAQI
23rd Sep 20262412 PMAQI
23rd Sep 2026241 PMAQI
23rd Sep 2026242 PMAQI
23rd Sep 2026243 PMAQI
23rd Sep 2026234 PMAQI
23rd Sep 2026225 PMAQI
23rd Sep 2026226 PMAQI
23rd Sep 2026227 PMAQI
23rd Sep 2026228 PMAQI
23rd Sep 2026229 PMAQI
23rd Sep 20262210 PMAQI
23rd Sep 20262211 PMAQI
24th Sep 20262212 AMAQI
24th Sep 2026221 AMAQI
24th Sep 2026222 AMAQI
24th Sep 2026233 AMAQI
24th Sep 2026224 AMAQI

18°C15/22°C

24th Sep 2026225 AMAQI
24th Sep 2026226 AMAQI
24th Sep 2026227 AMAQI
24th Sep 2026228 AMAQI
24th Sep 2026239 AMAQI
24th Sep 20262510 AMAQI
24th Sep 20262411 AMAQI
24th Sep 20262212 PMAQI
24th Sep 2026221 PMAQI
24th Sep 2026242 PMAQI
24th Sep 2026243 PMAQI
24th Sep 2026234 PMAQI
24th Sep 2026225 PMAQI
24th Sep 2026226 PMAQI
24th Sep 2026227 PMAQI
24th Sep 2026238 PMAQI
24th Sep 2026249 PMAQI
24th Sep 20262110 PMAQI
24th Sep 20262111 PMAQI
25th Sep 20262112 AMAQI
25th Sep 2026231 AMAQI
25th Sep 2026222 AMAQI
25th Sep 2026253 AMAQI
25th Sep 2026264 AMAQI

19°C16/25°C

25th Sep 2026255 AMAQI
25th Sep 2026256 AMAQI
25th Sep 2026257 AMAQI
25th Sep 2026228 AMAQI
25th Sep 2026249 AMAQI
25th Sep 20262510 AMAQI
25th Sep 20262811 AMAQI
25th Sep 20262612 PMAQI
25th Sep 2026251 PMAQI
25th Sep 2026262 PMAQI
25th Sep 2026253 PMAQI
25th Sep 2026264 PMAQI
25th Sep 2026255 PMAQI
25th Sep 2026236 PMAQI
25th Sep 2026227 PMAQI
25th Sep 2026228 PMAQI
25th Sep 2026259 PMAQI
25th Sep 20262310 PMAQI
25th Sep 20262511 PMAQI
26th Sep 20262312 AMAQI
26th Sep 2026251 AMAQI
26th Sep 2026252 AMAQI
26th Sep 2026263 AMAQI
26th Sep 2026264 AMAQI

19°C16/23°C

26th Sep 2026265 AMAQI
26th Sep 2026216 AMAQI
26th Sep 2026237 AMAQI
26th Sep 2026268 AMAQI
26th Sep 2026239 AMAQI
26th Sep 20262410 AMAQI
26th Sep 20262311 AMAQI
26th Sep 20262312 PMAQI
26th Sep 2026251 PMAQI
26th Sep 2026242 PMAQI
26th Sep 2026223 PMAQI
26th Sep 2026214 PMAQI
26th Sep 2026245 PMAQI
26th Sep 2026266 PMAQI
26th Sep 2026257 PMAQI
26th Sep 2026238 PMAQI
26th Sep 2026259 PMAQI
26th Sep 20262410 PMAQI
26th Sep 20262511 PMAQI
27th Sep 20262412 AMAQI
27th Sep 2026221 AMAQI
27th Sep 2026272 AMAQI
27th Sep 2026243 AMAQI
27th Sep 2026224 AMAQI

15°C14/17°C

27th Sep 2026285 AMAQI
27th Sep 2026256 AMAQI
27th Sep 2026257 AMAQI
27th Sep 2026258 AMAQI
27th Sep 2026249 AMAQI
27th Sep 20262310 AMAQI
27th Sep 20262311 AMAQI
27th Sep 20262312 PMAQI
27th Sep 2026241 PMAQI
27th Sep 2026212 PMAQI
27th Sep 2026213 PMAQI
27th Sep 2026244 PMAQI
27th Sep 2026255 PMAQI
27th Sep 2026246 PMAQI
27th Sep 2026267 PMAQI
27th Sep 2026268 PMAQI
27th Sep 2026239 PMAQI
27th Sep 20262310 PMAQI
27th Sep 20262511 PMAQI
28th Sep 20262512 AMAQI
28th Sep 2026241 AMAQI
28th Sep 2026212 AMAQI
28th Sep 2026213 AMAQI
28th Sep 2026214 AMAQI

17°C16/18°C

28th Sep 2026225 AMAQI
28th Sep 2026236 AMAQI
28th Sep 2026217 AMAQI
28th Sep 2026298 AMAQI
28th Sep 2026269 AMAQI
28th Sep 20262510 AMAQI
28th Sep 20262511 AMAQI
28th Sep 20262512 PMAQI
28th Sep 2026231 PMAQI
28th Sep 2026242 PMAQI
28th Sep 2026223 PMAQI
28th Sep 2026224 PMAQI
28th Sep 2026225 PMAQI
28th Sep 2026226 PMAQI
28th Sep 2026237 PMAQI
28th Sep 2026228 PMAQI
28th Sep 2026239 PMAQI
28th Sep 20262310 PMAQI
28th Sep 20262411 PMAQI
29th Sep 20262312 AMAQI
29th Sep 2026231 AMAQI
29th Sep 2026262 AMAQI
29th Sep 2026233 AMAQI
29th Sep 2026234 AMAQI

19°C16/21°C

29th Sep 2026235 AMAQI
29th Sep 2026226 AMAQI
29th Sep 2026217 AMAQI
29th Sep 2026218 AMAQI
29th Sep 2026259 AMAQI
29th Sep 20262610 AMAQI
29th Sep 20262411 AMAQI
29th Sep 20262512 PMAQI
29th Sep 2026241 PMAQI
29th Sep 2026252 PMAQI
29th Sep 2026233 PMAQI
29th Sep 2026234 PMAQI
29th Sep 2026235 PMAQI
29th Sep 2026246 PMAQI
29th Sep 2026247 PMAQI
29th Sep 2026248 PMAQI
29th Sep 2026249 PMAQI
29th Sep 20262410 PMAQI
29th Sep 20262211 PMAQI
30th Sep 20262212 AMAQI
30th Sep 2026231 AMAQI
30th Sep 2026252 AMAQI
30th Sep 2026263 AMAQI
30th Sep 2026274 AMAQI

18°C14/20°C

30th Sep 2026225 AMAQI
30th Sep 2026226 AMAQI
30th Sep 2026257 AMAQI
30th Sep 2026248 AMAQI
30th Sep 2026249 AMAQI
30th Sep 20262210 AMAQI
30th Sep 20262711 AMAQI
30th Sep 20262712 PMAQI
30th Sep 2026271 PMAQI
30th Sep 2026242 PMAQI
30th Sep 2026253 PMAQI
30th Sep 2026264 PMAQI
30th Sep 2026235 PMAQI
30th Sep 2026226 PMAQI
30th Sep 2026237 PMAQI
30th Sep 2026278 PMAQI
30th Sep 2026269 PMAQI
30th Sep 20262410 PMAQI
30th Sep 20262311 PMAQI
1st Oct 20262212 AMAQI
1st Oct 2026241 AMAQI
1st Oct 2026242 AMAQI
1st Oct 2026243 AMAQI
1st Oct 2026234 AMAQI

17°C13/21°C

1st Oct 2026215 AMAQI
1st Oct 2026246 AMAQI
1st Oct 2026247 AMAQI
1st Oct 2026238 AMAQI
1st Oct 2026239 AMAQI
1st Oct 20262310 AMAQI
1st Oct 20262411 AMAQI
1st Oct 20262412 PMAQI
1st Oct 2026241 PMAQI
1st Oct 2026232 PMAQI
1st Oct 2026233 PMAQI
1st Oct 2026224 PMAQI
1st Oct 2026235 PMAQI
1st Oct 2026236 PMAQI
1st Oct 2026227 PMAQI
1st Oct 2026228 PMAQI
1st Oct 2026229 PMAQI
1st Oct 20262210 PMAQI
1st Oct 20262111 PMAQI
2nd Oct 20262212 AMAQI
2nd Oct 2026221 AMAQI
2nd Oct 2026222 AMAQI
2nd Oct 2026223 AMAQI
2nd Oct 2026234 AMAQI

20°C15/27°C

2nd Oct 2026235 AMAQI
5 AM
2nd Oct 2026216 AMAQI
2nd Oct 2026267 AMAQI
2nd Oct 2026268 AMAQI
2nd Oct 2026259 AMAQI
2nd Oct 20262510 AMAQI
2nd Oct 20262311 AMAQI
11 AM
2nd Oct 20262512 PMAQI
2nd Oct 2026231 PMAQI
2nd Oct 2026232 PMAQI
2nd Oct 2026243 PMAQI
2nd Oct 2026254 PMAQI
2nd Oct 2026245 PMAQI
5 PM
2nd Oct 2026256 PMAQI
2nd Oct 2026237 PMAQI
2nd Oct 2026218 PMAQI
2nd Oct 2026259 PMAQI
2nd Oct 20262610 PMAQI
2nd Oct 20262311 PMAQI
11 PM
4 AM

16°C14/21°C

Day time
Avg. Highest Time
5 AM

26AQI

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

23AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 AM (Avg. 26), while the lowest AQI was between 11 AM to 1 PM (Avg. 23).
Night time
Avg. Highest Time
3 AM

27AQI

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

23AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 3 AM (Avg. 27), while the lowest AQI was between 6 PM to 8 PM (Avg. 23).

2026 Days Vs Air Quality

Sendai, Miyagi, Japan

2026

88%

243

12%

32

Total number of days with different AQI categories in last 275 days in 2026 (90 days remaining)

Good
243 Days
Moderate
32 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 88%

Health Risk Level:

Low

In 2026, 88% of 275 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

Sendai, Miyagi, 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
18AQI (US)
3rd January 2026
19AQI (US)
4th January 2026
20AQI (US)
5th January 2026
20AQI (US)
6th January 2026
20AQI (US)
7th January 2026
28AQI (US)
8th January 2026
26AQI (US)
9th January 2026
22AQI (US)
10th January 2026
27AQI (US)
11th January 2026
25AQI (US)
12th January 2026
20AQI (US)
13th January 2026
17AQI (US)
14th January 2026
15AQI (US)
15th January 2026
24AQI (US)
16th January 2026
31AQI (US)
17th January 2026
38AQI (US)
18th January 2026
21AQI (US)
19th January 2026
36AQI (US)
20th January 2026
23AQI (US)
21st January 2026
18AQI (US)
22nd January 2026
23AQI (US)
23rd January 2026
36AQI (US)
24th January 2026
35AQI (US)
25th January 2026
40AQI (US)
26th January 2026
31AQI (US)
27th January 2026
34AQI (US)
28th January 2026
28AQI (US)
29th January 2026
21AQI (US)
30th January 2026
34AQI (US)
31st January 2026
40AQI (US)
1st February 2026
33AQI (US)
2nd February 2026
35AQI (US)
3rd February 2026
31AQI (US)
4th February 2026
35AQI (US)
5th February 2026
42AQI (US)
6th February 2026
34AQI (US)
7th February 2026
19AQI (US)
8th February 2026
22AQI (US)
9th February 2026
38AQI (US)
10th February 2026
49AQI (US)
11th February 2026
59AQI (US)
12th February 2026
29AQI (US)
13th February 2026
29AQI (US)
14th February 2026
68AQI (US)
15th February 2026
48AQI (US)
16th February 2026
42AQI (US)
17th February 2026
21AQI (US)
18th February 2026
32AQI (US)
19th February 2026
31AQI (US)
20th February 2026
33AQI (US)
21st February 2026
47AQI (US)
22nd February 2026
43AQI (US)
23rd February 2026
41AQI (US)
24th February 2026
38AQI (US)
25th February 2026
41AQI (US)
26th February 2026
37AQI (US)
27th February 2026
40AQI (US)
28th February 2026
40AQI (US)
1st March 2026
42AQI (US)
2nd March 2026
82AQI (US)
3rd March 2026
52AQI (US)
4th March 2026
72AQI (US)
5th March 2026
66AQI (US)
6th March 2026
57AQI (US)
7th March 2026
47AQI (US)
8th March 2026
50AQI (US)
9th March 2026
50AQI (US)
10th March 2026
55AQI (US)
11th March 2026
56AQI (US)
12th March 2026
66AQI (US)
13th March 2026
44AQI (US)
14th March 2026
49AQI (US)
15th March 2026
60AQI (US)
16th March 2026
62AQI (US)
17th March 2026
57AQI (US)
18th March 2026
53AQI (US)
19th March 2026
36AQI (US)
20th March 2026
38AQI (US)
21st March 2026
50AQI (US)
22nd March 2026
39AQI (US)
23rd March 2026
43AQI (US)
24th March 2026
60AQI (US)
25th March 2026
58AQI (US)
26th March 2026
34AQI (US)
27th March 2026
24AQI (US)
28th March 2026
47AQI (US)
29th March 2026
56AQI (US)
30th March 2026
54AQI (US)
31st March 2026
45AQI (US)
1st April 2026
32AQI (US)
2nd April 2026
29AQI (US)
3rd April 2026
49AQI (US)
4th April 2026
51AQI (US)
5th April 2026
37AQI (US)
6th April 2026
22AQI (US)
7th April 2026
25AQI (US)
8th April 2026
25AQI (US)
9th April 2026
38AQI (US)
10th April 2026
51AQI (US)
11th April 2026
27AQI (US)
12th April 2026
20AQI (US)
13th April 2026
33AQI (US)
14th April 2026
39AQI (US)
15th April 2026
44AQI (US)
16th April 2026
29AQI (US)
17th April 2026
38AQI (US)
18th April 2026
37AQI (US)
19th April 2026
40AQI (US)
20th April 2026
32AQI (US)
21st April 2026
40AQI (US)
22nd April 2026
26AQI (US)
23rd April 2026
24AQI (US)
24th April 2026
31AQI (US)
25th April 2026
44AQI (US)
26th April 2026
46AQI (US)
27th April 2026
44AQI (US)
28th April 2026
39AQI (US)
29th April 2026
31AQI (US)
30th April 2026
40AQI (US)
1st May 2026
51AQI (US)
2nd May 2026
52AQI (US)
3rd May 2026
40AQI (US)
4th May 2026
30AQI (US)
5th May 2026
25AQI (US)
6th May 2026
34AQI (US)
7th May 2026
32AQI (US)
8th May 2026
26AQI (US)
9th May 2026
27AQI (US)
10th May 2026
33AQI (US)
11th May 2026
33AQI (US)
12th May 2026
37AQI (US)
13th May 2026
44AQI (US)
14th May 2026
36AQI (US)
15th May 2026
37AQI (US)
16th May 2026
84AQI (US)
17th May 2026
68AQI (US)
18th May 2026
53AQI (US)
19th May 2026
48AQI (US)
20th May 2026
61AQI (US)
21st May 2026
60AQI (US)
22nd May 2026
62AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
59AQI (US)
25th May 2026
48AQI (US)
26th May 2026
40AQI (US)
27th May 2026
25AQI (US)
28th May 2026
25AQI (US)
29th May 2026
25AQI (US)
30th May 2026
26AQI (US)
31st May 2026
29AQI (US)
1st June 2026
28AQI (US)
2nd June 2026
33AQI (US)
3rd June 2026
23AQI (US)
4th June 2026
14AQI (US)
5th June 2026
21AQI (US)
6th June 2026
21AQI (US)
7th June 2026
20AQI (US)
8th June 2026
20AQI (US)
9th June 2026
22AQI (US)
10th June 2026
21AQI (US)
11th June 2026
24AQI (US)
12th June 2026
24AQI (US)
13th June 2026
26AQI (US)
14th June 2026
24AQI (US)
15th June 2026
23AQI (US)
16th June 2026
17AQI (US)
17th June 2026
24AQI (US)
18th June 2026
25AQI (US)
19th June 2026
27AQI (US)
20th June 2026
21AQI (US)
21st June 2026
19AQI (US)
22nd June 2026
17AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
21AQI (US)
25th June 2026
27AQI (US)
26th June 2026
29AQI (US)
27th June 2026
27AQI (US)
28th June 2026
28AQI (US)
29th June 2026
29AQI (US)
30th June 2026
24AQI (US)
1st July 2026
24AQI (US)
2nd July 2026
23AQI (US)
3rd July 2026
24AQI (US)
4th July 2026
25AQI (US)
5th July 2026
22AQI (US)
6th July 2026
24AQI (US)
7th July 2026
25AQI (US)
8th July 2026
24AQI (US)
9th July 2026
24AQI (US)
10th July 2026
28AQI (US)
11th July 2026
30AQI (US)
12th July 2026
27AQI (US)
13th July 2026
18AQI (US)
14th July 2026
25AQI (US)
15th July 2026
34AQI (US)
16th July 2026
50AQI (US)
17th July 2026
39AQI (US)
18th July 2026
11AQI (US)
19th July 2026
22AQI (US)
20th July 2026
46AQI (US)
21st July 2026
58AQI (US)
22nd July 2026
53AQI (US)
23rd July 2026
28AQI (US)
24th July 2026
25AQI (US)
25th July 2026
24AQI (US)
26th July 2026
20AQI (US)
27th July 2026
20AQI (US)
28th July 2026
23AQI (US)
29th July 2026
25AQI (US)
30th July 2026
24AQI (US)
31st July 2026
24AQI (US)
1st August 2026
24AQI (US)
2nd August 2026
21AQI (US)
3rd August 2026
22AQI (US)
4th August 2026
28AQI (US)
5th August 2026
25AQI (US)
6th August 2026
22AQI (US)
7th August 2026
31AQI (US)
8th August 2026
32AQI (US)
9th August 2026
23AQI (US)
10th August 2026
24AQI (US)
11th August 2026
26AQI (US)
12th August 2026
24AQI (US)
13th August 2026
27AQI (US)
14th August 2026
25AQI (US)
15th August 2026
25AQI (US)
16th August 2026
25AQI (US)
17th August 2026
27AQI (US)
18th August 2026
24AQI (US)
19th August 2026
23AQI (US)
20th August 2026
26AQI (US)
21st August 2026
29AQI (US)
22nd August 2026
25AQI (US)
23rd August 2026
27AQI (US)
24th August 2026
29AQI (US)
25th August 2026
46AQI (US)
26th August 2026
49AQI (US)
27th August 2026
34AQI (US)
28th August 2026
25AQI (US)
29th August 2026
25AQI (US)
30th August 2026
20AQI (US)
31st August 2026
15AQI (US)
1st September 2026
22AQI (US)
2nd September 2026
26AQI (US)
3rd September 2026
31AQI (US)
4th September 2026
25AQI (US)
5th September 2026
24AQI (US)
6th September 2026
22AQI (US)
7th September 2026
29AQI (US)
8th September 2026
21AQI (US)
9th September 2026
24AQI (US)
10th September 2026
24AQI (US)
11th September 2026
24AQI (US)
12th September 2026
24AQI (US)
13th September 2026
23AQI (US)
14th September 2026
30AQI (US)
15th September 2026
24AQI (US)
16th September 2026
24AQI (US)
17th September 2026
23AQI (US)
18th September 2026
23AQI (US)
19th September 2026
23AQI (US)
20th September 2026
23AQI (US)
21st September 2026
18AQI (US)
22nd September 2026
23AQI (US)
23rd September 2026
23AQI (US)
24th September 2026
22AQI (US)
25th September 2026
24AQI (US)
26th September 2026
24AQI (US)
27th September 2026
24AQI (US)
28th September 2026
23AQI (US)
29th September 2026
24AQI (US)
30th September 2026
24AQI (US)
1st October 2026
23AQI (US)
2nd October 2026
24AQI (US)
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

26AQI (US)

38AQI (US)

52AQI (US)

35AQI (US)

42AQI (US)

23AQI (US)

28AQI (US)

27AQI (US)

24AQI (US)

24AQI (US)

No. of days

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

202633AQI (US)

31
26
2
15
16
28
2
21
10
30
29
2
31
30
2
243
32

Highest AQI (US) recorded in

March

52AQI (US)

Lowest AQI (US) recorded in

June

23AQI (US)

202536AQI (US)

31
28
26
5
27
3
29
2
27
3
17
14
30
1
30
22
9
28
2
29
2
324
41

Highest AQI (US) recorded in

July

51AQI (US)

Lowest AQI (US) recorded in

February

26AQI (US)

202431AQI (US)

31
28
1
28
3
17
12
1
30
1
28
2
26
5
31
30
31
29
1
31
340
25
1

Highest AQI (US) recorded in

April

47AQI (US)

Lowest AQI (US) recorded in

December

22AQI (US)

202335AQI (US)

31
26
2
18
11
18
12
24
7
27
3
23
8
25
6
29
1
31
28
1
30
1
310
52

Highest AQI (US) recorded in

April

50AQI (US)

Lowest AQI (US) recorded in

December

24AQI (US)

202230AQI (US)

30
21
28
3
23
7
26
5
27
3
24
1
4
29
29
2
30
31
302
21

Highest AQI (US) recorded in

August

41AQI (US)

Lowest AQI (US) recorded in

December

19AQI (US)

202130AQI (US)

31
25
3
25
5
1
30
28
3
23
7
27
4
31
30
31
30
31
342
22
1

Highest AQI (US) recorded in

March

40AQI (US)

Lowest AQI (US) recorded in

December

24AQI (US)

202029AQI (US)

12
1
21
17
1
27
3
31
24
7
19
30
1
28
2
30
1
239
16

Highest AQI (US) recorded in

August

42AQI (US)

Lowest AQI (US) recorded in

December

22AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
36AQI (US)
Least Polluted Year Recorded
2020(Avg.)
29AQI (US)

Sendai's annual 2026 AQI (US) (33) shows an average percentage change of 4.3% (worsened AQI (US)) compared to previous years: 2020 (29), 2021 (30), 2022 (30), 2023 (35), 2024 (31), 2025 (36).