Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Yashio, Saitama, 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

Yashio, Saitama, Japan

2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2025
60AQI
Lowest AQI recorded on
30th Aug 2024
16AQI

Same Day Analysis (31st August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 53 of Moderate air quality on the same day.

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

Yashio, Saitama, Japan

AQI
Day
Night
.

4 AM31st Jul 2026

6 PM

3 AM1st Aug 2026

Day time
Avg. Highest Time
6PM31st Jul

50AQI

Avg. Lowest Time
5AM31st Jul

37AQI

Night time
Avg. Highest Time
8PM31st Jul

60AQI

Avg. Lowest Time
3AM1st Aug

42AQI

In the last 24 hours,

Yashio's AQI reached its highest point of 60 at 8 PM during the Night, while the lowest point, 37, was recorded at 5 AM during the Day between 31st Jul and 1st Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Yashio, Saitama, 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 2026124 AMAQI
3rd Jul 2026145 AMAQI
3rd Jul 202686 AMAQI
3rd Jul 2026107 AMAQI
3rd Jul 202688 AMAQI
3rd Jul 2026119 AMAQI
3rd Jul 20261010 AMAQI
3rd Jul 20261311 AMAQI
3rd Jul 20261412 PMAQI
3rd Jul 2026221 PMAQI
3rd Jul 2026282 PMAQI
3rd Jul 2026263 PMAQI
3rd Jul 2026194 PMAQI
3rd Jul 2026175 PMAQI
3rd Jul 2026276 PMAQI
3rd Jul 2026287 PMAQI
3rd Jul 2026288 PMAQI
3rd Jul 2026269 PMAQI
3rd Jul 20262610 PMAQI
3rd Jul 20262611 PMAQI
4th Jul 20262612 AMAQI
4th Jul 2026301 AMAQI
4th Jul 2026282 AMAQI
4th Jul 2026263 AMAQI

23°C21/26°C

4th Jul 2026284 AMAQI
4th Jul 2026265 AMAQI
4th Jul 2026296 AMAQI
4th Jul 2026387 AMAQI
4th Jul 2026708 AMAQI
4th Jul 2026749 AMAQI
4th Jul 20267510 AMAQI
4th Jul 20268011 AMAQI
4th Jul 20267612 PMAQI
4th Jul 2026591 PMAQI
4th Jul 2026422 PMAQI
4th Jul 2026463 PMAQI
4th Jul 2026344 PMAQI
4th Jul 2026245 PMAQI
4th Jul 2026276 PMAQI
4th Jul 2026307 PMAQI
4th Jul 2026258 PMAQI
4th Jul 2026239 PMAQI
4th Jul 20261810 PMAQI
4th Jul 20261411 PMAQI
5th Jul 20261812 AMAQI
5th Jul 2026161 AMAQI
5th Jul 2026192 AMAQI
5th Jul 2026143 AMAQI

24°C22/26°C

5th Jul 2026214 AMAQI
5th Jul 2026195 AMAQI
5th Jul 2026206 AMAQI
5th Jul 2026187 AMAQI
5th Jul 2026128 AMAQI
5th Jul 2026129 AMAQI
5th Jul 20261310 AMAQI
5th Jul 20261611 AMAQI
5th Jul 20262712 PMAQI
5th Jul 2026281 PMAQI
5th Jul 2026272 PMAQI
5th Jul 2026303 PMAQI
5th Jul 2026314 PMAQI
5th Jul 2026275 PMAQI
5th Jul 2026296 PMAQI
5th Jul 2026297 PMAQI
5th Jul 2026338 PMAQI
5th Jul 2026389 PMAQI
5th Jul 20262810 PMAQI
5th Jul 20262811 PMAQI
6th Jul 20262912 AMAQI
6th Jul 2026291 AMAQI
6th Jul 2026382 AMAQI
6th Jul 2026273 AMAQI

24°C22/27°C

6th Jul 2026344 AMAQI
6th Jul 2026345 AMAQI
6th Jul 2026326 AMAQI
6th Jul 2026307 AMAQI
6th Jul 2026308 AMAQI
6th Jul 2026329 AMAQI
6th Jul 20263210 AMAQI
6th Jul 20262611 AMAQI
6th Jul 20262012 PMAQI
6th Jul 2026181 PMAQI
6th Jul 2026222 PMAQI
6th Jul 2026243 PMAQI
6th Jul 2026254 PMAQI
6th Jul 2026205 PMAQI
6th Jul 2026196 PMAQI
6th Jul 2026217 PMAQI
6th Jul 2026248 PMAQI
6th Jul 2026249 PMAQI
6th Jul 20262510 PMAQI
6th Jul 20262611 PMAQI
7th Jul 20262812 AMAQI
7th Jul 2026291 AMAQI
7th Jul 2026282 AMAQI
7th Jul 2026303 AMAQI

23°C22/24°C

7th Jul 2026294 AMAQI
7th Jul 2026305 AMAQI
7th Jul 2026286 AMAQI
7th Jul 2026277 AMAQI
7th Jul 2026298 AMAQI
7th Jul 2026249 AMAQI
7th Jul 20262410 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20262212 PMAQI
7th Jul 2026221 PMAQI
7th Jul 2026232 PMAQI
7th Jul 2026273 PMAQI
7th Jul 2026254 PMAQI
7th Jul 2026275 PMAQI
7th Jul 2026266 PMAQI
7th Jul 2026267 PMAQI
7th Jul 2026258 PMAQI
7th Jul 2026279 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262511 PMAQI
8th Jul 20262812 AMAQI
8th Jul 2026281 AMAQI
8th Jul 2026282 AMAQI
8th Jul 2026283 AMAQI

25°C21/30°C

8th Jul 2026254 AMAQI
8th Jul 2026265 AMAQI
8th Jul 2026266 AMAQI
8th Jul 2026267 AMAQI
8th Jul 2026268 AMAQI
8th Jul 2026259 AMAQI
8th Jul 20262010 AMAQI
8th Jul 20262211 AMAQI
8th Jul 20262212 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026253 PMAQI
8th Jul 2026244 PMAQI
8th Jul 2026235 PMAQI
8th Jul 2026236 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026208 PMAQI
8th Jul 2026209 PMAQI
8th Jul 20261610 PMAQI
8th Jul 20262011 PMAQI
9th Jul 20262612 AMAQI
9th Jul 2026281 AMAQI
9th Jul 2026262 AMAQI
9th Jul 2026223 AMAQI

26°C22/31°C

9th Jul 2026264 AMAQI
9th Jul 2026265 AMAQI
9th Jul 2026256 AMAQI
9th Jul 2026237 AMAQI
9th Jul 2026158 AMAQI
9th Jul 2026229 AMAQI
9th Jul 20262210 AMAQI
9th Jul 20262211 AMAQI
9th Jul 20262112 PMAQI
9th Jul 2026201 PMAQI
9th Jul 2026242 PMAQI
9th Jul 2026263 PMAQI
9th Jul 2026264 PMAQI
9th Jul 2026265 PMAQI
9th Jul 2026266 PMAQI
9th Jul 2026247 PMAQI
9th Jul 2026258 PMAQI
9th Jul 2026239 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262511 PMAQI
10th Jul 20262512 AMAQI
10th Jul 2026261 AMAQI
10th Jul 2026262 AMAQI
10th Jul 2026213 AMAQI

27°C24/31°C

10th Jul 2026244 AMAQI
10th Jul 2026225 AMAQI
10th Jul 2026226 AMAQI
10th Jul 2026257 AMAQI
10th Jul 2026278 AMAQI
10th Jul 2026269 AMAQI
10th Jul 20262710 AMAQI
10th Jul 20262611 AMAQI
10th Jul 20262612 PMAQI
10th Jul 2026231 PMAQI
10th Jul 2026222 PMAQI
10th Jul 2026223 PMAQI
10th Jul 2026244 PMAQI
10th Jul 2026265 PMAQI
10th Jul 2026276 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026278 PMAQI
10th Jul 2026249 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20263011 PMAQI
11th Jul 20263012 AMAQI
11th Jul 202681 AMAQI
11th Jul 2026232 AMAQI
11th Jul 2026193 AMAQI

28°C24/32°C

11th Jul 2026284 AMAQI
11th Jul 2026285 AMAQI
11th Jul 2026306 AMAQI
11th Jul 2026307 AMAQI
11th Jul 2026308 AMAQI
11th Jul 2026259 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20262611 AMAQI
11th Jul 20262512 PMAQI
11th Jul 2026221 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026223 PMAQI
11th Jul 2026244 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026276 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026268 PMAQI
11th Jul 2026249 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20262712 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026282 AMAQI
12th Jul 2026253 AMAQI

27°C25/31°C

12th Jul 2026264 AMAQI
12th Jul 2026285 AMAQI
12th Jul 2026286 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026278 AMAQI
12th Jul 2026289 AMAQI
12th Jul 20262810 AMAQI
12th Jul 20262511 AMAQI
12th Jul 20262412 PMAQI
12th Jul 2026221 PMAQI
12th Jul 2026212 PMAQI
12th Jul 2026243 PMAQI
12th Jul 2026274 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026296 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026288 PMAQI
12th Jul 2026289 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262911 PMAQI
13th Jul 20262912 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026303 AMAQI

26°C25/29°C

13th Jul 2026304 AMAQI
13th Jul 2026295 AMAQI
13th Jul 2026306 AMAQI
13th Jul 2026287 AMAQI
13th Jul 2026298 AMAQI
13th Jul 2026309 AMAQI
13th Jul 20263110 AMAQI
13th Jul 20262811 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026262 PMAQI
13th Jul 2026283 PMAQI
13th Jul 2026274 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026516 PMAQI
13th Jul 2026437 PMAQI
13th Jul 2026388 PMAQI
13th Jul 2026369 PMAQI
13th Jul 20263510 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026321 AMAQI
14th Jul 2026312 AMAQI
14th Jul 2026323 AMAQI

28°C26/30°C

14th Jul 2026304 AMAQI
14th Jul 2026325 AMAQI
14th Jul 2026326 AMAQI
14th Jul 2026317 AMAQI
14th Jul 2026308 AMAQI
14th Jul 2026319 AMAQI
14th Jul 20263210 AMAQI
14th Jul 20262411 AMAQI
14th Jul 20262612 PMAQI
14th Jul 2026221 PMAQI
14th Jul 2026242 PMAQI
14th Jul 2026523 PMAQI
14th Jul 2026244 PMAQI
14th Jul 2026825 PMAQI
14th Jul 2026686 PMAQI
14th Jul 2026587 PMAQI
14th Jul 2026508 PMAQI
14th Jul 2026459 PMAQI
14th Jul 20264710 PMAQI
14th Jul 20264211 PMAQI
15th Jul 20264012 AMAQI
15th Jul 2026361 AMAQI
15th Jul 2026372 AMAQI
15th Jul 2026213 AMAQI

29°C25/33°C

15th Jul 2026374 AMAQI
15th Jul 2026495 AMAQI
15th Jul 2026406 AMAQI
15th Jul 2026467 AMAQI
15th Jul 2026368 AMAQI
15th Jul 2026359 AMAQI
15th Jul 20263710 AMAQI
15th Jul 20265611 AMAQI
15th Jul 20265612 PMAQI
15th Jul 2026561 PMAQI
15th Jul 2026562 PMAQI
15th Jul 2026613 PMAQI
15th Jul 2026574 PMAQI
15th Jul 2026585 PMAQI
15th Jul 2026616 PMAQI
15th Jul 2026567 PMAQI
15th Jul 2026508 PMAQI
15th Jul 2026589 PMAQI
15th Jul 20265210 PMAQI
15th Jul 20265011 PMAQI
16th Jul 20264512 AMAQI
16th Jul 2026451 AMAQI
16th Jul 2026462 AMAQI
16th Jul 2026303 AMAQI

30°C27/34°C

16th Jul 2026684 AMAQI
16th Jul 2026725 AMAQI
16th Jul 2026686 AMAQI
16th Jul 2026727 AMAQI
16th Jul 2026728 AMAQI
16th Jul 2026689 AMAQI
16th Jul 20266610 AMAQI
16th Jul 20267111 AMAQI
16th Jul 20267112 PMAQI
16th Jul 2026741 PMAQI
16th Jul 2026842 PMAQI
16th Jul 2026813 PMAQI
16th Jul 2026784 PMAQI
16th Jul 2026805 PMAQI
16th Jul 2026806 PMAQI
16th Jul 2026707 PMAQI
16th Jul 2026628 PMAQI
16th Jul 2026709 PMAQI
16th Jul 20267710 PMAQI
16th Jul 20267611 PMAQI
17th Jul 20266212 AMAQI
17th Jul 2026561 AMAQI
17th Jul 2026492 AMAQI
17th Jul 2026453 AMAQI

30°C27/36°C

17th Jul 2026424 AMAQI
17th Jul 2026405 AMAQI
17th Jul 2026386 AMAQI
17th Jul 2026417 AMAQI
17th Jul 2026488 AMAQI
17th Jul 2026549 AMAQI
17th Jul 20265810 AMAQI
17th Jul 20265811 AMAQI
17th Jul 20266712 PMAQI
17th Jul 2026751 PMAQI
17th Jul 2026562 PMAQI
17th Jul 2026463 PMAQI
17th Jul 2026214 PMAQI
17th Jul 2026455 PMAQI
17th Jul 2026436 PMAQI
17th Jul 2026507 PMAQI
17th Jul 2026548 PMAQI
17th Jul 2026559 PMAQI
17th Jul 20265210 PMAQI
17th Jul 20264611 PMAQI
18th Jul 20263912 AMAQI
18th Jul 2026381 AMAQI
18th Jul 2026322 AMAQI
18th Jul 2026363 AMAQI

29°C27/32°C

18th Jul 2026344 AMAQI
18th Jul 2026305 AMAQI
18th Jul 2026276 AMAQI
18th Jul 2026187 AMAQI
18th Jul 2026148 AMAQI
18th Jul 2026129 AMAQI
18th Jul 20261910 AMAQI
18th Jul 20261911 AMAQI
18th Jul 20261912 PMAQI
18th Jul 2026191 PMAQI
18th Jul 2026212 PMAQI
18th Jul 2026113 PMAQI
18th Jul 2026124 PMAQI
18th Jul 2026145 PMAQI
18th Jul 2026166 PMAQI
18th Jul 2026147 PMAQI
18th Jul 2026148 PMAQI
18th Jul 2026149 PMAQI
18th Jul 20261310 PMAQI
18th Jul 20261211 PMAQI
19th Jul 20261212 AMAQI
19th Jul 2026101 AMAQI
19th Jul 2026102 AMAQI
19th Jul 2026103 AMAQI

28°C26/31°C

19th Jul 2026104 AMAQI
19th Jul 2026105 AMAQI
19th Jul 2026116 AMAQI
19th Jul 2026117 AMAQI
19th Jul 202698 AMAQI
19th Jul 202689 AMAQI
19th Jul 2026910 AMAQI
19th Jul 20261211 AMAQI
19th Jul 20261612 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026232 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026245 PMAQI
19th Jul 2026236 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026268 PMAQI
19th Jul 2026269 PMAQI
19th Jul 20262810 PMAQI
19th Jul 20262511 PMAQI
20th Jul 20263012 AMAQI
20th Jul 2026271 AMAQI
20th Jul 2026322 AMAQI
20th Jul 2026233 AMAQI

28°C25/32°C

20th Jul 2026244 AMAQI
20th Jul 2026225 AMAQI
20th Jul 2026216 AMAQI
20th Jul 2026217 AMAQI
20th Jul 2026228 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262510 AMAQI
20th Jul 20262711 AMAQI
20th Jul 20263012 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026402 PMAQI
20th Jul 2026423 PMAQI
20th Jul 2026444 PMAQI
20th Jul 2026475 PMAQI
20th Jul 2026446 PMAQI
20th Jul 2026427 PMAQI
20th Jul 2026428 PMAQI
20th Jul 2026399 PMAQI
20th Jul 20263510 PMAQI
20th Jul 20263811 PMAQI
21st Jul 20264312 AMAQI
21st Jul 2026421 AMAQI
21st Jul 2026362 AMAQI
21st Jul 2026323 AMAQI

31°C27/36°C

21st Jul 2026284 AMAQI
21st Jul 2026265 AMAQI
21st Jul 2026306 AMAQI
21st Jul 2026307 AMAQI
21st Jul 2026318 AMAQI
21st Jul 2026349 AMAQI
21st Jul 20264010 AMAQI
21st Jul 20264511 AMAQI
21st Jul 2026581 PMAQI
21st Jul 2026582 PMAQI
21st Jul 2026693 PMAQI
21st Jul 2026624 PMAQI
21st Jul 2026565 PMAQI
21st Jul 2026546 PMAQI
21st Jul 2026907 PMAQI
21st Jul 2026548 PMAQI
21st Jul 2026489 PMAQI
21st Jul 20265310 PMAQI
21st Jul 20265211 PMAQI
22nd Jul 20265512 AMAQI
22nd Jul 2026561 AMAQI
22nd Jul 2026572 AMAQI
22nd Jul 2026643 AMAQI

32°C28/36°C

22nd Jul 2026624 AMAQI
22nd Jul 2026625 AMAQI
22nd Jul 2026606 AMAQI
22nd Jul 2026607 AMAQI
22nd Jul 2026608 AMAQI
22nd Jul 2026589 AMAQI
22nd Jul 20265810 AMAQI
22nd Jul 20266711 AMAQI
22nd Jul 20267212 PMAQI
22nd Jul 2026731 PMAQI
22nd Jul 2026762 PMAQI
22nd Jul 2026783 PMAQI
22nd Jul 2026744 PMAQI
22nd Jul 2026725 PMAQI
22nd Jul 2026716 PMAQI
22nd Jul 2026767 PMAQI
22nd Jul 2026748 PMAQI
22nd Jul 2026719 PMAQI
22nd Jul 20267210 PMAQI
22nd Jul 20267511 PMAQI
23rd Jul 20268112 AMAQI
23rd Jul 2026801 AMAQI
23rd Jul 2026702 AMAQI
23rd Jul 2026643 AMAQI

32°C28/36°C

23rd Jul 2026544 AMAQI
23rd Jul 2026605 AMAQI
23rd Jul 2026586 AMAQI
23rd Jul 2026597 AMAQI
23rd Jul 2026558 AMAQI
23rd Jul 2026609 AMAQI
23rd Jul 20266210 AMAQI
23rd Jul 20266411 AMAQI
23rd Jul 20266912 PMAQI
23rd Jul 2026681 PMAQI
23rd Jul 2026712 PMAQI
23rd Jul 2026803 PMAQI
23rd Jul 2026744 PMAQI
23rd Jul 2026705 PMAQI
23rd Jul 2026666 PMAQI
23rd Jul 2026607 PMAQI
23rd Jul 2026528 PMAQI
23rd Jul 2026409 PMAQI
23rd Jul 20263210 PMAQI
23rd Jul 20263211 PMAQI
24th Jul 20262712 AMAQI
24th Jul 2026291 AMAQI
24th Jul 2026272 AMAQI
24th Jul 2026263 AMAQI

32°C29/38°C

24th Jul 2026204 AMAQI
24th Jul 2026225 AMAQI
24th Jul 2026266 AMAQI
24th Jul 2026307 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20263110 AMAQI
24th Jul 20263611 AMAQI
24th Jul 20264712 PMAQI
24th Jul 2026561 PMAQI
24th Jul 2026602 PMAQI
24th Jul 2026663 PMAQI
24th Jul 2026654 PMAQI
24th Jul 2026625 PMAQI
24th Jul 2026546 PMAQI
24th Jul 2026687 PMAQI
24th Jul 2026508 PMAQI
24th Jul 2026289 PMAQI
24th Jul 20263110 PMAQI
24th Jul 20262911 PMAQI
25th Jul 20263012 AMAQI
25th Jul 2026261 AMAQI
25th Jul 2026302 AMAQI
25th Jul 2026263 AMAQI

30°C27/34°C

25th Jul 2026244 AMAQI
25th Jul 2026235 AMAQI
25th Jul 2026186 AMAQI
25th Jul 2026147 AMAQI
25th Jul 2026168 AMAQI
25th Jul 2026189 AMAQI
25th Jul 20262410 AMAQI
25th Jul 20263011 AMAQI
25th Jul 20264612 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026342 PMAQI
25th Jul 2026433 PMAQI
25th Jul 2026364 PMAQI
25th Jul 2026385 PMAQI
25th Jul 2026206 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026208 PMAQI
25th Jul 2026249 PMAQI
25th Jul 20262010 PMAQI
25th Jul 20262611 PMAQI
26th Jul 20262612 AMAQI
26th Jul 2026221 AMAQI
26th Jul 2026202 AMAQI
26th Jul 2026223 AMAQI

29°C25/35°C

26th Jul 2026184 AMAQI
26th Jul 2026205 AMAQI
26th Jul 2026226 AMAQI
26th Jul 2026167 AMAQI
26th Jul 2026188 AMAQI
26th Jul 2026189 AMAQI
26th Jul 20261810 AMAQI
26th Jul 20262411 AMAQI
26th Jul 20262712 PMAQI
26th Jul 2026371 PMAQI
26th Jul 2026432 PMAQI
26th Jul 2026623 PMAQI
26th Jul 2026424 PMAQI
26th Jul 2026265 PMAQI
26th Jul 2026306 PMAQI
26th Jul 2026387 PMAQI
26th Jul 2026348 PMAQI
26th Jul 2026319 PMAQI
26th Jul 20262210 PMAQI
26th Jul 20262411 PMAQI
27th Jul 20262312 AMAQI
27th Jul 2026401 AMAQI
27th Jul 2026242 AMAQI
27th Jul 2026273 AMAQI

28°C25/32°C

27th Jul 2026214 AMAQI
27th Jul 2026225 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026218 AMAQI
27th Jul 2026239 AMAQI
27th Jul 20262110 AMAQI
27th Jul 20262411 AMAQI
27th Jul 20262412 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026272 PMAQI
27th Jul 2026223 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026265 PMAQI
27th Jul 2026266 PMAQI
27th Jul 2026227 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20262610 PMAQI
27th Jul 20262411 PMAQI
28th Jul 20262312 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026253 AMAQI

27°C24/30°C

28th Jul 2026234 AMAQI
28th Jul 2026235 AMAQI
28th Jul 2026236 AMAQI
28th Jul 2026227 AMAQI
28th Jul 2026228 AMAQI
28th Jul 2026219 AMAQI
28th Jul 20262210 AMAQI
28th Jul 20262411 AMAQI
28th Jul 20263412 PMAQI
28th Jul 2026421 PMAQI
28th Jul 2026442 PMAQI
28th Jul 2026423 PMAQI
28th Jul 2026394 PMAQI
28th Jul 2026295 PMAQI
28th Jul 2026286 PMAQI
28th Jul 2026277 PMAQI
28th Jul 2026258 PMAQI
28th Jul 2026249 PMAQI
28th Jul 20263210 PMAQI
28th Jul 20264211 PMAQI
29th Jul 20265412 AMAQI
29th Jul 2026531 AMAQI
29th Jul 2026542 AMAQI
29th Jul 2026353 AMAQI

27°C24/31°C

29th Jul 2026544 AMAQI
29th Jul 2026535 AMAQI
29th Jul 2026516 AMAQI
29th Jul 2026457 AMAQI
29th Jul 2026338 AMAQI
29th Jul 2026369 AMAQI
29th Jul 20263210 AMAQI
29th Jul 20262311 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026211 PMAQI
29th Jul 2026262 PMAQI
29th Jul 2026243 PMAQI
29th Jul 2026234 PMAQI
29th Jul 2026245 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026248 PMAQI
29th Jul 2026239 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20262812 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026232 AMAQI
30th Jul 2026253 AMAQI

30°C25/36°C

30th Jul 2026214 AMAQI
30th Jul 2026215 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026247 AMAQI
30th Jul 2026228 AMAQI
30th Jul 2026229 AMAQI
30th Jul 20262210 AMAQI
30th Jul 20262611 AMAQI
30th Jul 20262912 PMAQI
30th Jul 2026341 PMAQI
30th Jul 2026442 PMAQI
30th Jul 2026463 PMAQI
30th Jul 2026504 PMAQI
30th Jul 2026545 PMAQI
30th Jul 2026566 PMAQI
30th Jul 2026587 PMAQI
30th Jul 2026648 PMAQI
30th Jul 2026529 PMAQI
30th Jul 20264010 PMAQI
30th Jul 20264711 PMAQI
31st Jul 20265012 AMAQI
31st Jul 2026461 AMAQI
31st Jul 2026382 AMAQI
31st Jul 2026373 AMAQI

32°C28/36°C

31st Jul 2026384 AMAQI
31st Jul 2026375 AMAQI
31st Jul 2026406 AMAQI
31st Jul 2026437 AMAQI
31st Jul 2026398 AMAQI
31st Jul 2026399 AMAQI
31st Jul 20264410 AMAQI
31st Jul 20264511 AMAQI
31st Jul 20264812 PMAQI
31st Jul 2026461 PMAQI
31st Jul 2026472 PMAQI
31st Jul 2026483 PMAQI
31st Jul 2026484 PMAQI
31st Jul 2026445 PMAQI
31st Jul 2026506 PMAQI
31st Jul 2026537 PMAQI
31st Jul 2026608 PMAQI
31st Jul 2026559 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20264711 PMAQI
1st Aug 20264812 AMAQI
1st Aug 2026491 AMAQI
1st Aug 2026522 AMAQI
1st Aug 2026423 AMAQI

31°C29/36°C

1st Aug 2026564 AMAQI
4 AM
1st Aug 2026565 AMAQI
1st Aug 2026586 AMAQI
1st Aug 2026557 AMAQI
1st Aug 2026588 AMAQI
1st Aug 2026549 AMAQI
1st Aug 20265210 AMAQI
1st Aug 20265811 AMAQI
11 AM
1st Aug 20265812 PMAQI
1st Aug 2026601 PMAQI
1st Aug 2026582 PMAQI
1st Aug 2026583 PMAQI
1st Aug 2026604 PMAQI
1st Aug 2026575 PMAQI
1st Aug 2026566 PMAQI
6 PM
1st Aug 2026587 PMAQI
1st Aug 2026608 PMAQI
1st Aug 2026669 PMAQI
1st Aug 20266810 PMAQI
1st Aug 20267011 PMAQI
11 PM
3 AM

32°C27/37°C

Day time
Avg. Highest Time
3 PM

42AQI

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

31AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 3 PM (Avg. 42), while the lowest AQI was between 6 AM to 6 AM (Avg. 31).
Night time
Avg. Highest Time
7 PM

41AQI

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

29AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 41), while the lowest AQI was between 3 AM to 3 AM (Avg. 29).

2026 Days Vs Air Quality

Yashio, Saitama, Japan

2026

86%

182

14%

30

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

Good
182 Days
Moderate
30 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 86%

Health Risk Level:

Low

In 2026, 86% 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

Yashio, Saitama, 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
18AQI (US)
2nd January 2026
20AQI (US)
3rd January 2026
16AQI (US)
4th January 2026
22AQI (US)
5th January 2026
52AQI (US)
6th January 2026
22AQI (US)
7th January 2026
36AQI (US)
8th January 2026
42AQI (US)
9th January 2026
18AQI (US)
10th January 2026
36AQI (US)
11th January 2026
34AQI (US)
12th January 2026
21AQI (US)
13th January 2026
41AQI (US)
14th January 2026
19AQI (US)
15th January 2026
36AQI (US)
16th January 2026
52AQI (US)
17th January 2026
52AQI (US)
18th January 2026
22AQI (US)
19th January 2026
46AQI (US)
20th January 2026
50AQI (US)
21st January 2026
12AQI (US)
22nd January 2026
24AQI (US)
23rd January 2026
40AQI (US)
24th January 2026
42AQI (US)
25th January 2026
44AQI (US)
26th January 2026
26AQI (US)
27th January 2026
38AQI (US)
28th January 2026
24AQI (US)
29th January 2026
21AQI (US)
30th January 2026
40AQI (US)
31st January 2026
38AQI (US)
1st February 2026
40AQI (US)
2nd February 2026
47AQI (US)
3rd February 2026
30AQI (US)
4th February 2026
42AQI (US)
5th February 2026
65AQI (US)
6th February 2026
61AQI (US)
7th February 2026
15AQI (US)
8th February 2026
14AQI (US)
9th February 2026
36AQI (US)
10th February 2026
42AQI (US)
11th February 2026
60AQI (US)
12th February 2026
32AQI (US)
13th February 2026
50AQI (US)
14th February 2026
61AQI (US)
15th February 2026
73AQI (US)
16th February 2026
54AQI (US)
17th February 2026
19AQI (US)
18th February 2026
40AQI (US)
19th February 2026
22AQI (US)
20th February 2026
26AQI (US)
21st February 2026
48AQI (US)
22nd February 2026
43AQI (US)
23rd February 2026
49AQI (US)
24th February 2026
38AQI (US)
25th February 2026
35AQI (US)
26th February 2026
15AQI (US)
27th February 2026
42AQI (US)
28th February 2026
29AQI (US)
1st March 2026
20AQI (US)
2nd March 2026
52AQI (US)
3rd March 2026
44AQI (US)
4th March 2026
43AQI (US)
5th March 2026
31AQI (US)
6th March 2026
24AQI (US)
7th March 2026
41AQI (US)
8th March 2026
34AQI (US)
9th March 2026
43AQI (US)
10th March 2026
57AQI (US)
11th March 2026
57AQI (US)
12th March 2026
63AQI (US)
13th March 2026
36AQI (US)
14th March 2026
45AQI (US)
15th March 2026
56AQI (US)
16th March 2026
48AQI (US)
17th March 2026
48AQI (US)
18th March 2026
50AQI (US)
19th March 2026
38AQI (US)
20th March 2026
28AQI (US)
21st March 2026
59AQI (US)
22nd March 2026
50AQI (US)
23rd March 2026
50AQI (US)
24th March 2026
49AQI (US)
25th March 2026
62AQI (US)
26th March 2026
30AQI (US)
27th March 2026
24AQI (US)
28th March 2026
50AQI (US)
29th March 2026
50AQI (US)
30th March 2026
58AQI (US)
31st March 2026
25AQI (US)
1st April 2026
25AQI (US)
2nd April 2026
34AQI (US)
3rd April 2026
46AQI (US)
4th April 2026
46AQI (US)
5th April 2026
38AQI (US)
6th April 2026
30AQI (US)
7th April 2026
28AQI (US)
8th April 2026
32AQI (US)
9th April 2026
33AQI (US)
10th April 2026
42AQI (US)
11th April 2026
49AQI (US)
12th April 2026
34AQI (US)
13th April 2026
42AQI (US)
14th April 2026
38AQI (US)
15th April 2026
38AQI (US)
16th April 2026
33AQI (US)
17th April 2026
34AQI (US)
18th April 2026
38AQI (US)
19th April 2026
38AQI (US)
20th April 2026
36AQI (US)
21st April 2026
36AQI (US)
22nd April 2026
47AQI (US)
23rd April 2026
38AQI (US)
24th April 2026
32AQI (US)
25th April 2026
46AQI (US)
26th April 2026
51AQI (US)
27th April 2026
48AQI (US)
28th April 2026
42AQI (US)
29th April 2026
39AQI (US)
30th April 2026
36AQI (US)
1st May 2026
47AQI (US)
2nd May 2026
50AQI (US)
3rd May 2026
52AQI (US)
4th May 2026
31AQI (US)
5th May 2026
20AQI (US)
6th May 2026
30AQI (US)
7th May 2026
30AQI (US)
8th May 2026
26AQI (US)
9th May 2026
26AQI (US)
10th May 2026
30AQI (US)
11th May 2026
28AQI (US)
12th May 2026
34AQI (US)
13th May 2026
38AQI (US)
14th May 2026
33AQI (US)
15th May 2026
36AQI (US)
16th May 2026
86AQI (US)
17th May 2026
68AQI (US)
18th May 2026
53AQI (US)
19th May 2026
48AQI (US)
20th May 2026
61AQI (US)
21st May 2026
58AQI (US)
22nd May 2026
60AQI (US)
23rd May 2026
54AQI (US)
24th May 2026
58AQI (US)
25th May 2026
47AQI (US)
26th May 2026
39AQI (US)
27th May 2026
24AQI (US)
28th May 2026
25AQI (US)
29th May 2026
24AQI (US)
30th May 2026
24AQI (US)
31st May 2026
27AQI (US)
1st June 2026
29AQI (US)
2nd June 2026
25AQI (US)
3rd June 2026
14AQI (US)
4th June 2026
22AQI (US)
5th June 2026
21AQI (US)
6th June 2026
20AQI (US)
7th June 2026
22AQI (US)
8th June 2026
20AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
24AQI (US)
12th June 2026
24AQI (US)
13th June 2026
34AQI (US)
14th June 2026
46AQI (US)
15th June 2026
14AQI (US)
16th June 2026
22AQI (US)
17th June 2026
23AQI (US)
18th June 2026
24AQI (US)
19th June 2026
25AQI (US)
20th June 2026
22AQI (US)
21st June 2026
20AQI (US)
22nd June 2026
18AQI (US)
23rd June 2026
21AQI (US)
24th June 2026
22AQI (US)
25th June 2026
26AQI (US)
26th June 2026
30AQI (US)
27th June 2026
24AQI (US)
28th June 2026
26AQI (US)
29th June 2026
24AQI (US)
30th June 2026
24AQI (US)
1st July 2026
30AQI (US)
2nd July 2026
21AQI (US)
3rd July 2026
17AQI (US)
4th July 2026
40AQI (US)
5th July 2026
23AQI (US)
6th July 2026
26AQI (US)
7th July 2026
26AQI (US)
8th July 2026
24AQI (US)
9th July 2026
24AQI (US)
10th July 2026
26AQI (US)
11th July 2026
26AQI (US)
12th July 2026
27AQI (US)
13th July 2026
32AQI (US)
14th July 2026
38AQI (US)
15th July 2026
48AQI (US)
16th July 2026
68AQI (US)
17th July 2026
50AQI (US)
18th July 2026
20AQI (US)
19th July 2026
17AQI (US)
20th July 2026
32AQI (US)
21st July 2026
47AQI (US)
22nd July 2026
67AQI (US)
23rd July 2026
62AQI (US)
24th July 2026
39AQI (US)
25th July 2026
28AQI (US)
26th July 2026
28AQI (US)
27th July 2026
24AQI (US)
28th July 2026
28AQI (US)
29th July 2026
34AQI (US)
30th July 2026
36AQI (US)
31st July 2026
46AQI (US)
1st August 2026
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

32AQI (US)

40AQI (US)

44AQI (US)

38AQI (US)

41AQI (US)

24AQI (US)

34AQI (US)

No. of days

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

202636AQI (US)

28
3
22
6
23
8
29
1
22
9
30
28
3
182
30

Highest AQI (US) recorded in

March

44AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202539AQI (US)

31
28
27
4
29
1
30
1
30
25
6
23
8
30
14
17
16
14
16
14
1
299
65
1

Highest AQI (US) recorded in

December

51AQI (US)

Lowest AQI (US) recorded in

May

28AQI (US)

202438AQI (US)

25
6
26
3
23
8
22
8
27
4
29
1
26
5
30
1
27
3
30
1
28
2
31
324
42

Highest AQI (US) recorded in

April

48AQI (US)

Lowest AQI (US) recorded in

December

31AQI (US)

202342AQI (US)

21
10
19
9
23
8
16
14
24
7
22
8
20
11
29
2
29
1
29
2
18
11
20
11
270
94

Highest AQI (US) recorded in

April

50AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202237AQI (US)

31
19
2
27
4
24
6
27
4
21
9
22
2
1
28
30
1
21
9
25
6
276
43

Highest AQI (US) recorded in

June

45AQI (US)

Lowest AQI (US) recorded in

September

27AQI (US)

202132AQI (US)

29
2
26
2
28
3
29
1
29
2
27
3
31
27
4
30
30
1
29
1
28
3
343
22

Highest AQI (US) recorded in

June

38AQI (US)

Lowest AQI (US) recorded in

April

27AQI (US)

202028AQI (US)

12
1
21
18
27
3
31
27
4
19
30
1
25
5
29
2
239
16

Highest AQI (US) recorded in

August

34AQI (US)

Lowest AQI (US) recorded in

September

22AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
42AQI (US)
Least Polluted Year Recorded
2020(Avg.)
28AQI (US)

Yashio's annual 2026 AQI (US) (36) shows an average percentage change of 1.8% (worsened AQI (US)) compared to previous years: 2020 (28), 2021 (32), 2022 (37), 2023 (42), 2024 (38), 2025 (39).