Ayase, 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
Ayase, Yashio, Saitama, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
60AQILowest AQI recorded on
30th Aug 2024
16AQISame Day Analysis (6th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 24 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Ayase, Yashio, Saitama, Japan
AQI
Day
Night
.
4 AM5th Aug 2026
6 PM
3 AM6th Aug 2026
Day time
Avg. Highest Time
3PM5th Aug
31AQI
Avg. Lowest Time
6PM5th Aug
27AQI
Night time
Avg. Highest Time
7PM5th Aug
27AQI
Avg. Lowest Time
3AM6th Aug
21AQI
In the last 24 hours,
Ayase's AQI reached its highest point of 31 at 3 PM during the Day, while the lowest point, 21, was recorded at 3 AM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Ayase, Yashio, Saitama, Japan
JulAug
08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
8th Jul 2026254 AMAQI
8th Jul 2026255 AMAQI
8th Jul 2026266 AMAQI
8th Jul 2026277 AMAQI
8th Jul 2026268 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262410 AMAQI
8th Jul 20262111 AMAQI
8th Jul 20262212 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026243 PMAQI
8th Jul 2026254 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026236 PMAQI
8th Jul 2026197 PMAQI
8th Jul 2026208 PMAQI
8th Jul 2026209 PMAQI
8th Jul 20261410 PMAQI
8th Jul 20261611 PMAQI
9th Jul 20262612 AMAQI
9th Jul 2026291 AMAQI
9th Jul 2026272 AMAQI
9th Jul 2026173 AMAQI
26°C22/31°C
9th Jul 2026264 AMAQI
9th Jul 2026265 AMAQI
9th Jul 2026246 AMAQI
9th Jul 2026207 AMAQI
9th Jul 2026188 AMAQI
9th Jul 2026239 AMAQI
9th Jul 20262110 AMAQI
9th Jul 20262211 AMAQI
9th Jul 20262212 PMAQI
9th Jul 2026211 PMAQI
9th Jul 2026242 PMAQI
9th Jul 2026263 PMAQI
9th Jul 2026264 PMAQI
9th Jul 2026265 PMAQI
9th Jul 2026266 PMAQI
9th Jul 2026257 PMAQI
9th Jul 2026268 PMAQI
9th Jul 2026229 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262411 PMAQI
10th Jul 20262412 AMAQI
10th Jul 2026261 AMAQI
10th Jul 2026242 AMAQI
10th Jul 2026263 AMAQI
27°C24/31°C
10th Jul 2026224 AMAQI
10th Jul 2026285 AMAQI
10th Jul 2026256 AMAQI
10th Jul 2026247 AMAQI
10th Jul 2026288 AMAQI
10th Jul 2026269 AMAQI
10th Jul 20262610 AMAQI
10th Jul 20262611 AMAQI
10th Jul 20262412 PMAQI
10th Jul 2026241 PMAQI
10th Jul 2026222 PMAQI
10th Jul 2026223 PMAQI
10th Jul 2026234 PMAQI
10th Jul 2026265 PMAQI
10th Jul 2026246 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026278 PMAQI
10th Jul 2026289 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20263011 PMAQI
11th Jul 20263112 AMAQI
11th Jul 202681 AMAQI
11th Jul 2026282 AMAQI
11th Jul 202683 AMAQI
28°C24/32°C
11th Jul 2026274 AMAQI
11th Jul 2026285 AMAQI
11th Jul 2026306 AMAQI
11th Jul 2026297 AMAQI
11th Jul 2026298 AMAQI
11th Jul 2026309 AMAQI
11th Jul 20263410 AMAQI
11th Jul 20262811 AMAQI
11th Jul 20262412 PMAQI
11th Jul 2026221 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026213 PMAQI
11th Jul 2026244 PMAQI
11th Jul 2026295 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026268 PMAQI
11th Jul 2026189 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20262812 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026292 AMAQI
12th Jul 2026203 AMAQI
27°C25/31°C
12th Jul 2026244 AMAQI
12th Jul 2026285 AMAQI
12th Jul 2026286 AMAQI
12th Jul 2026277 AMAQI
12th Jul 2026268 AMAQI
12th Jul 2026269 AMAQI
12th Jul 20262810 AMAQI
12th Jul 20262411 AMAQI
12th Jul 20262612 PMAQI
12th Jul 2026201 PMAQI
12th Jul 2026202 PMAQI
12th Jul 2026253 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026275 PMAQI
12th Jul 2026286 PMAQI
12th Jul 2026287 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026279 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20263012 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026292 AMAQI
13th Jul 2026313 AMAQI
26°C25/29°C
13th Jul 2026304 AMAQI
13th Jul 2026305 AMAQI
13th Jul 2026296 AMAQI
13th Jul 2026277 AMAQI
13th Jul 2026288 AMAQI
13th Jul 2026309 AMAQI
13th Jul 20263010 AMAQI
13th Jul 20262611 AMAQI
13th Jul 20262712 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026222 PMAQI
13th Jul 2026273 PMAQI
13th Jul 2026264 PMAQI
13th Jul 2026325 PMAQI
13th Jul 2026706 PMAQI
13th Jul 2026567 PMAQI
13th Jul 2026448 PMAQI
13th Jul 2026409 PMAQI
13th Jul 20264010 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026321 AMAQI
14th Jul 2026302 AMAQI
14th Jul 2026313 AMAQI
28°C26/30°C
14th Jul 2026294 AMAQI
14th Jul 2026315 AMAQI
14th Jul 2026326 AMAQI
14th Jul 2026307 AMAQI
14th Jul 2026308 AMAQI
14th Jul 2026309 AMAQI
14th Jul 20263210 AMAQI
14th Jul 20262311 AMAQI
14th Jul 20262812 PMAQI
14th Jul 2026241 PMAQI
14th Jul 2026272 PMAQI
14th Jul 2026523 PMAQI
14th Jul 2026244 PMAQI
14th Jul 2026865 PMAQI
14th Jul 2026716 PMAQI
14th Jul 2026597 PMAQI
14th Jul 2026518 PMAQI
14th Jul 2026489 PMAQI
14th Jul 20264810 PMAQI
14th Jul 20264211 PMAQI
15th Jul 20263812 AMAQI
15th Jul 2026361 AMAQI
15th Jul 2026382 AMAQI
15th Jul 2026203 AMAQI
29°C25/33°C
15th Jul 2026384 AMAQI
15th Jul 2026525 AMAQI
15th Jul 2026426 AMAQI
15th Jul 2026467 AMAQI
15th Jul 2026368 AMAQI
15th Jul 2026369 AMAQI
15th Jul 20263610 AMAQI
15th Jul 20265511 AMAQI
15th Jul 20265812 PMAQI
15th Jul 2026561 PMAQI
15th Jul 2026572 PMAQI
15th Jul 2026643 PMAQI
15th Jul 2026584 PMAQI
15th Jul 2026595 PMAQI
15th Jul 2026596 PMAQI
15th Jul 2026567 PMAQI
15th Jul 2026528 PMAQI
15th Jul 2026589 PMAQI
15th Jul 20265110 PMAQI
15th Jul 20265011 PMAQI
16th Jul 20264412 AMAQI
16th Jul 2026461 AMAQI
16th Jul 2026462 AMAQI
16th Jul 2026293 AMAQI
30°C27/34°C
16th Jul 2026694 AMAQI
16th Jul 2026745 AMAQI
16th Jul 2026696 AMAQI
16th Jul 2026717 AMAQI
16th Jul 2026698 AMAQI
16th Jul 2026689 AMAQI
16th Jul 20266510 AMAQI
16th Jul 20267311 AMAQI
16th Jul 20267212 PMAQI
16th Jul 2026761 PMAQI
16th Jul 2026822 PMAQI
16th Jul 2026813 PMAQI
16th Jul 2026844 PMAQI
16th Jul 2026825 PMAQI
16th Jul 2026836 PMAQI
16th Jul 2026737 PMAQI
16th Jul 2026658 PMAQI
16th Jul 2026699 PMAQI
16th Jul 20268110 PMAQI
16th Jul 20267611 PMAQI
17th Jul 20266412 AMAQI
17th Jul 2026601 AMAQI
17th Jul 2026522 AMAQI
17th Jul 2026503 AMAQI
30°C27/36°C
17th Jul 2026444 AMAQI
17th Jul 2026425 AMAQI
17th Jul 2026406 AMAQI
17th Jul 2026447 AMAQI
17th Jul 2026508 AMAQI
17th Jul 2026569 AMAQI
17th Jul 20265610 AMAQI
17th Jul 20266011 AMAQI
17th Jul 20266812 PMAQI
17th Jul 2026761 PMAQI
17th Jul 2026532 PMAQI
17th Jul 2026363 PMAQI
17th Jul 2026174 PMAQI
17th Jul 2026485 PMAQI
17th Jul 2026466 PMAQI
17th Jul 2026527 PMAQI
17th Jul 2026558 PMAQI
17th Jul 2026579 PMAQI
17th Jul 20265310 PMAQI
17th Jul 20264011 PMAQI
18th Jul 20264012 AMAQI
18th Jul 2026381 AMAQI
18th Jul 2026332 AMAQI
18th Jul 2026333 AMAQI
29°C27/32°C
18th Jul 2026344 AMAQI
18th Jul 2026295 AMAQI
18th Jul 2026296 AMAQI
18th Jul 2026217 AMAQI
18th Jul 2026178 AMAQI
18th Jul 2026129 AMAQI
18th Jul 20262110 AMAQI
18th Jul 20262111 AMAQI
18th Jul 20262112 PMAQI
18th Jul 2026211 PMAQI
18th Jul 2026232 PMAQI
18th Jul 2026143 PMAQI
18th Jul 2026174 PMAQI
18th Jul 2026175 PMAQI
18th Jul 2026196 PMAQI
18th Jul 2026197 PMAQI
18th Jul 2026178 PMAQI
18th Jul 2026179 PMAQI
18th Jul 20261410 PMAQI
18th Jul 20261211 PMAQI
19th Jul 2026912 AMAQI
19th Jul 202681 AMAQI
19th Jul 202682 AMAQI
19th Jul 202683 AMAQI
28°C26/31°C
19th Jul 2026104 AMAQI
19th Jul 2026105 AMAQI
19th Jul 2026106 AMAQI
19th Jul 2026107 AMAQI
19th Jul 202688 AMAQI
19th Jul 202689 AMAQI
19th Jul 20261010 AMAQI
19th Jul 20261211 AMAQI
19th Jul 20262112 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026216 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026278 PMAQI
19th Jul 2026279 PMAQI
19th Jul 20263110 PMAQI
19th Jul 20262311 PMAQI
20th Jul 20263112 AMAQI
20th Jul 2026311 AMAQI
20th Jul 2026382 AMAQI
20th Jul 2026213 AMAQI
28°C25/32°C
20th Jul 2026234 AMAQI
20th Jul 2026215 AMAQI
20th Jul 2026216 AMAQI
20th Jul 2026217 AMAQI
20th Jul 2026238 AMAQI
20th Jul 2026279 AMAQI
20th Jul 20262510 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20262112 PMAQI
20th Jul 2026211 PMAQI
20th Jul 2026562 PMAQI
20th Jul 2026513 PMAQI
20th Jul 2026484 PMAQI
20th Jul 2026585 PMAQI
20th Jul 2026576 PMAQI
20th Jul 2026557 PMAQI
20th Jul 2026558 PMAQI
20th Jul 2026539 PMAQI
20th Jul 20264910 PMAQI
20th Jul 20265211 PMAQI
21st Jul 20265512 AMAQI
21st Jul 2026541 AMAQI
21st Jul 2026422 AMAQI
21st Jul 2026343 AMAQI
31°C27/36°C
21st Jul 2026274 AMAQI
21st Jul 2026215 AMAQI
21st Jul 2026276 AMAQI
21st Jul 2026257 AMAQI
21st Jul 2026298 AMAQI
21st Jul 2026369 AMAQI
21st Jul 20264210 AMAQI
21st Jul 20265011 AMAQI
21st Jul 2026681 PMAQI
21st Jul 2026692 PMAQI
21st Jul 2026963 PMAQI
21st Jul 2026764 PMAQI
21st Jul 2026575 PMAQI
21st Jul 2026566 PMAQI
21st Jul 2026887 PMAQI
21st Jul 2026578 PMAQI
21st Jul 2026499 PMAQI
21st Jul 20265510 PMAQI
21st Jul 20265311 PMAQI
22nd Jul 20265712 AMAQI
22nd Jul 2026571 AMAQI
22nd Jul 2026582 AMAQI
22nd Jul 2026663 AMAQI
32°C28/36°C
22nd Jul 2026634 AMAQI
22nd Jul 2026645 AMAQI
22nd Jul 2026606 AMAQI
22nd Jul 2026627 AMAQI
22nd Jul 2026628 AMAQI
22nd Jul 2026609 AMAQI
22nd Jul 20265910 AMAQI
22nd Jul 20266711 AMAQI
22nd Jul 20267312 PMAQI
22nd Jul 2026731 PMAQI
22nd Jul 2026812 PMAQI
22nd Jul 2026813 PMAQI
22nd Jul 2026784 PMAQI
22nd Jul 2026765 PMAQI
22nd Jul 2026746 PMAQI
22nd Jul 2026797 PMAQI
22nd Jul 2026768 PMAQI
22nd Jul 2026719 PMAQI
22nd Jul 20267410 PMAQI
22nd Jul 20268011 PMAQI
23rd Jul 20268212 AMAQI
23rd Jul 2026851 AMAQI
23rd Jul 2026712 AMAQI
23rd Jul 2026713 AMAQI
32°C28/36°C
23rd Jul 2026574 AMAQI
23rd Jul 2026655 AMAQI
23rd Jul 2026626 AMAQI
23rd Jul 2026667 AMAQI
23rd Jul 2026628 AMAQI
23rd Jul 2026609 AMAQI
23rd Jul 20266410 AMAQI
23rd Jul 20266411 AMAQI
23rd Jul 20266812 PMAQI
23rd Jul 2026671 PMAQI
23rd Jul 2026722 PMAQI
23rd Jul 2026853 PMAQI
23rd Jul 2026764 PMAQI
23rd Jul 2026735 PMAQI
23rd Jul 2026666 PMAQI
23rd Jul 2026647 PMAQI
23rd Jul 2026558 PMAQI
23rd Jul 2026429 PMAQI
23rd Jul 20263110 PMAQI
23rd Jul 20263311 PMAQI
24th Jul 20262912 AMAQI
24th Jul 2026291 AMAQI
24th Jul 2026292 AMAQI
24th Jul 2026293 AMAQI
32°C29/38°C
24th Jul 2026214 AMAQI
24th Jul 2026255 AMAQI
24th Jul 2026296 AMAQI
24th Jul 2026337 AMAQI
24th Jul 2026298 AMAQI
24th Jul 2026319 AMAQI
24th Jul 20263310 AMAQI
24th Jul 20264011 AMAQI
24th Jul 20265212 PMAQI
24th Jul 2026591 PMAQI
24th Jul 2026662 PMAQI
24th Jul 2026653 PMAQI
24th Jul 2026724 PMAQI
24th Jul 2026695 PMAQI
24th Jul 2026746 PMAQI
24th Jul 2026727 PMAQI
24th Jul 2026488 PMAQI
24th Jul 2026409 PMAQI
24th Jul 20263110 PMAQI
24th Jul 20263311 PMAQI
25th Jul 20263612 AMAQI
25th Jul 2026361 AMAQI
25th Jul 2026312 AMAQI
25th Jul 2026313 AMAQI
30°C27/34°C
25th Jul 2026254 AMAQI
25th Jul 2026255 AMAQI
25th Jul 2026216 AMAQI
25th Jul 2026177 AMAQI
25th Jul 2026168 AMAQI
25th Jul 2026169 AMAQI
25th Jul 20262710 AMAQI
25th Jul 20263111 AMAQI
25th Jul 20265412 PMAQI
25th Jul 2026511 PMAQI
25th Jul 2026362 PMAQI
25th Jul 2026463 PMAQI
25th Jul 2026364 PMAQI
25th Jul 2026385 PMAQI
25th Jul 2026196 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026128 PMAQI
25th Jul 2026129 PMAQI
25th Jul 20261210 PMAQI
25th Jul 20261411 PMAQI
26th Jul 20261712 AMAQI
26th Jul 2026121 AMAQI
26th Jul 2026122 AMAQI
26th Jul 2026123 AMAQI
29°C25/35°C
26th Jul 202684 AMAQI
26th Jul 202685 AMAQI
26th Jul 2026126 AMAQI
26th Jul 2026127 AMAQI
26th Jul 2026128 AMAQI
26th Jul 2026129 AMAQI
26th Jul 20261210 AMAQI
26th Jul 20262511 AMAQI
26th Jul 20262912 PMAQI
26th Jul 2026381 PMAQI
26th Jul 2026482 PMAQI
26th Jul 2026743 PMAQI
26th Jul 2026494 PMAQI
26th Jul 2026275 PMAQI
26th Jul 2026316 PMAQI
26th Jul 2026427 PMAQI
26th Jul 2026368 PMAQI
26th Jul 2026339 PMAQI
26th Jul 20262310 PMAQI
26th Jul 20262511 PMAQI
27th Jul 20262312 AMAQI
27th Jul 2026381 AMAQI
27th Jul 2026232 AMAQI
27th Jul 2026253 AMAQI
28°C25/32°C
27th Jul 2026214 AMAQI
27th Jul 2026235 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026218 AMAQI
27th Jul 2026219 AMAQI
27th Jul 20262110 AMAQI
27th Jul 20262511 AMAQI
27th Jul 20262312 PMAQI
27th Jul 2026291 PMAQI
27th Jul 2026312 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026334 PMAQI
27th Jul 2026315 PMAQI
27th Jul 2026276 PMAQI
27th Jul 2026237 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026299 PMAQI
27th Jul 20262110 PMAQI
27th Jul 20262111 PMAQI
28th Jul 20262512 AMAQI
28th Jul 2026291 AMAQI
28th Jul 2026292 AMAQI
28th Jul 2026293 AMAQI
27°C24/30°C
28th Jul 2026254 AMAQI
28th Jul 2026255 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026218 AMAQI
28th Jul 2026219 AMAQI
28th Jul 20262310 AMAQI
28th Jul 20262311 AMAQI
28th Jul 20264412 PMAQI
28th Jul 2026581 PMAQI
28th Jul 2026582 PMAQI
28th Jul 2026603 PMAQI
28th Jul 2026534 PMAQI
28th Jul 2026335 PMAQI
28th Jul 2026316 PMAQI
28th Jul 2026317 PMAQI
28th Jul 2026258 PMAQI
28th Jul 2026219 PMAQI
28th Jul 20263110 PMAQI
28th Jul 20264411 PMAQI
29th Jul 20265512 AMAQI
29th Jul 2026531 AMAQI
29th Jul 2026542 AMAQI
29th Jul 2026343 AMAQI
27°C24/31°C
29th Jul 2026544 AMAQI
29th Jul 2026545 AMAQI
29th Jul 2026516 AMAQI
29th Jul 2026467 AMAQI
29th Jul 2026338 AMAQI
29th Jul 2026369 AMAQI
29th Jul 20263310 AMAQI
29th Jul 20262511 AMAQI
29th Jul 20262912 PMAQI
29th Jul 2026211 PMAQI
29th Jul 2026272 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026235 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20262912 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 2026257 AMAQI
30th Jul 2026218 AMAQI
30th Jul 2026239 AMAQI
30th Jul 20262310 AMAQI
30th Jul 20262711 AMAQI
30th Jul 20263112 PMAQI
30th Jul 2026381 PMAQI
30th Jul 2026512 PMAQI
30th Jul 2026523 PMAQI
30th Jul 2026524 PMAQI
30th Jul 2026565 PMAQI
30th Jul 2026566 PMAQI
30th Jul 2026587 PMAQI
30th Jul 2026698 PMAQI
30th Jul 2026529 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20264411 PMAQI
31st Jul 20265312 AMAQI
31st Jul 2026481 AMAQI
31st Jul 2026382 AMAQI
31st Jul 2026383 AMAQI
32°C28/36°C
31st Jul 2026384 AMAQI
31st Jul 2026385 AMAQI
31st Jul 2026406 AMAQI
31st Jul 2026447 AMAQI
31st Jul 2026408 AMAQI
31st Jul 2026409 AMAQI
31st Jul 20264610 AMAQI
31st Jul 20264811 AMAQI
31st Jul 20265112 PMAQI
31st Jul 2026481 PMAQI
31st Jul 2026482 PMAQI
31st Jul 2026513 PMAQI
31st Jul 2026514 PMAQI
31st Jul 2026465 PMAQI
31st Jul 2026516 PMAQI
31st Jul 2026547 PMAQI
31st Jul 2026628 PMAQI
31st Jul 2026569 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20264811 PMAQI
1st Aug 20265012 AMAQI
1st Aug 2026481 AMAQI
1st Aug 2026522 AMAQI
1st Aug 2026423 AMAQI
31°C29/36°C
1st Aug 2026584 AMAQI
1st Aug 2026565 AMAQI
1st Aug 2026586 AMAQI
1st Aug 2026547 AMAQI
1st Aug 2026588 AMAQI
1st Aug 2026559 AMAQI
1st Aug 20265510 AMAQI
1st Aug 20266211 AMAQI
1st Aug 20266212 PMAQI
1st Aug 2026601 PMAQI
1st Aug 2026622 PMAQI
1st Aug 2026603 PMAQI
1st Aug 2026644 PMAQI
1st Aug 2026585 PMAQI
1st Aug 2026596 PMAQI
1st Aug 2026587 PMAQI
1st Aug 2026608 PMAQI
1st Aug 2026659 PMAQI
1st Aug 20266610 PMAQI
1st Aug 20266911 PMAQI
2nd Aug 20267012 AMAQI
2nd Aug 2026681 AMAQI
2nd Aug 2026722 AMAQI
2nd Aug 2026563 AMAQI
32°C27/37°C
2nd Aug 2026694 AMAQI
2nd Aug 2026665 AMAQI
2nd Aug 2026626 AMAQI
2nd Aug 2026627 AMAQI
2nd Aug 2026568 AMAQI
2nd Aug 2026549 AMAQI
2nd Aug 20265410 AMAQI
2nd Aug 20265911 AMAQI
2nd Aug 20265912 PMAQI
2nd Aug 2026551 PMAQI
2nd Aug 2026512 PMAQI
2nd Aug 2026463 PMAQI
2nd Aug 2026444 PMAQI
2nd Aug 2026365 PMAQI
2nd Aug 2026316 PMAQI
2nd Aug 2026197 PMAQI
2nd Aug 2026128 PMAQI
2nd Aug 202689 PMAQI
2nd Aug 20261210 PMAQI
2nd Aug 2026811 PMAQI
3rd Aug 2026812 AMAQI
3rd Aug 2026121 AMAQI
3rd Aug 202682 AMAQI
3rd Aug 2026123 AMAQI
30°C25/35°C
3rd Aug 2026144 AMAQI
3rd Aug 2026175 AMAQI
3rd Aug 2026176 AMAQI
3rd Aug 202687 AMAQI
3rd Aug 2026128 AMAQI
3rd Aug 2026199 AMAQI
3rd Aug 20261910 AMAQI
3rd Aug 20261711 AMAQI
3rd Aug 20262112 PMAQI
3rd Aug 2026251 PMAQI
3rd Aug 2026252 PMAQI
3rd Aug 2026233 PMAQI
3rd Aug 2026214 PMAQI
3rd Aug 2026235 PMAQI
3rd Aug 2026146 PMAQI
3rd Aug 2026257 PMAQI
3rd Aug 2026338 PMAQI
3rd Aug 2026279 PMAQI
3rd Aug 20262510 PMAQI
3rd Aug 20262511 PMAQI
4th Aug 20262512 AMAQI
4th Aug 2026291 AMAQI
4th Aug 2026212 AMAQI
4th Aug 2026213 AMAQI
25°C24/27°C
4th Aug 2026254 AMAQI
4th Aug 2026255 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026257 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026239 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262711 AMAQI
4th Aug 20263112 PMAQI
4th Aug 2026461 PMAQI
4th Aug 2026522 PMAQI
4th Aug 2026493 PMAQI
4th Aug 2026424 PMAQI
4th Aug 2026525 PMAQI
4th Aug 2026466 PMAQI
4th Aug 2026507 PMAQI
4th Aug 2026448 PMAQI
4th Aug 2026549 PMAQI
4th Aug 20264410 PMAQI
4th Aug 20264811 PMAQI
5th Aug 20264812 AMAQI
5th Aug 2026481 AMAQI
5th Aug 2026482 AMAQI
5th Aug 2026273 AMAQI
26°C22/30°C
5th Aug 2026294 AMAQI
5th Aug 2026295 AMAQI
5th Aug 2026276 AMAQI
5th Aug 2026297 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026279 AMAQI
5th Aug 20262910 AMAQI
5th Aug 20262911 AMAQI
5th Aug 20262912 PMAQI
5th Aug 2026291 PMAQI
5th Aug 2026292 PMAQI
5th Aug 2026313 PMAQI
5th Aug 2026294 PMAQI
5th Aug 2026275 PMAQI
5th Aug 2026276 PMAQI
5th Aug 2026277 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026259 PMAQI
5th Aug 20262110 PMAQI
5th Aug 20262311 PMAQI
6th Aug 20262112 AMAQI
6th Aug 2026211 AMAQI
6th Aug 2026232 AMAQI
6th Aug 2026213 AMAQI
27°C23/31°C
6th Aug 2026254 AMAQI
4 AM6th Aug 2026235 AMAQI
6th Aug 2026236 AMAQI
6th Aug 2026237 AMAQI
6th Aug 2026218 AMAQI
6th Aug 2026219 AMAQI
6th Aug 20262110 AMAQI
6th Aug 20262311 AMAQI
11 AM6th Aug 20262312 PMAQI
6th Aug 2026231 PMAQI
6th Aug 2026252 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026254 PMAQI
6th Aug 2026255 PMAQI
6th Aug 2026216 PMAQI
6 PM6th Aug 2026387 PMAQI
6th Aug 2026428 PMAQI
6th Aug 2026239 PMAQI
6th Aug 20262310 PMAQI
6th Aug 20262311 PMAQI
11 PM3 AM
29°C26/34°C
Day time
Avg. Highest Time
3 PM
45AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
8 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. 45), while the lowest AQI was between 8 AM to 8 AM (Avg. 31).
Night time
Avg. Highest Time
7 PM
43AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM
30AQI
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. 43), while the lowest AQI was between 3 AM to 3 AM (Avg. 30).
2026 Days Vs Air Quality
Ayase, Yashio, Saitama, Japan
2026
84%
183
16%
35
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Good
183 DaysModerate
35 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2026, 84% of 218 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
Ayase, 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)
18AQI (US)
2nd January 2026
20AQI (US)
20AQI (US)
3rd January 2026
14AQI (US)
14AQI (US)
4th January 2026
22AQI (US)
22AQI (US)
5th January 2026
53AQI (US)
53AQI (US)
6th January 2026
22AQI (US)
22AQI (US)
7th January 2026
37AQI (US)
37AQI (US)
8th January 2026
47AQI (US)
47AQI (US)
9th January 2026
20AQI (US)
20AQI (US)
10th January 2026
39AQI (US)
39AQI (US)
11th January 2026
34AQI (US)
34AQI (US)
12th January 2026
20AQI (US)
20AQI (US)
13th January 2026
42AQI (US)
42AQI (US)
14th January 2026
19AQI (US)
19AQI (US)
15th January 2026
38AQI (US)
38AQI (US)
16th January 2026
57AQI (US)
57AQI (US)
17th January 2026
55AQI (US)
55AQI (US)
18th January 2026
26AQI (US)
26AQI (US)
19th January 2026
48AQI (US)
48AQI (US)
20th January 2026
60AQI (US)
60AQI (US)
21st January 2026
12AQI (US)
12AQI (US)
22nd January 2026
27AQI (US)
27AQI (US)
23rd January 2026
40AQI (US)
40AQI (US)
24th January 2026
43AQI (US)
43AQI (US)
25th January 2026
46AQI (US)
46AQI (US)
26th January 2026
25AQI (US)
25AQI (US)
27th January 2026
38AQI (US)
38AQI (US)
28th January 2026
21AQI (US)
21AQI (US)
29th January 2026
20AQI (US)
20AQI (US)
30th January 2026
42AQI (US)
42AQI (US)
31st January 2026
39AQI (US)
39AQI (US)
1st February 2026
41AQI (US)
41AQI (US)
2nd February 2026
48AQI (US)
48AQI (US)
3rd February 2026
32AQI (US)
32AQI (US)
4th February 2026
42AQI (US)
42AQI (US)
5th February 2026
65AQI (US)
65AQI (US)
6th February 2026
62AQI (US)
62AQI (US)
7th February 2026
18AQI (US)
18AQI (US)
8th February 2026
17AQI (US)
17AQI (US)
9th February 2026
37AQI (US)
37AQI (US)
10th February 2026
42AQI (US)
42AQI (US)
11th February 2026
61AQI (US)
61AQI (US)
12th February 2026
32AQI (US)
32AQI (US)
13th February 2026
52AQI (US)
52AQI (US)
14th February 2026
65AQI (US)
65AQI (US)
15th February 2026
73AQI (US)
73AQI (US)
16th February 2026
54AQI (US)
54AQI (US)
17th February 2026
21AQI (US)
21AQI (US)
18th February 2026
42AQI (US)
42AQI (US)
19th February 2026
16AQI (US)
16AQI (US)
20th February 2026
26AQI (US)
26AQI (US)
21st February 2026
49AQI (US)
49AQI (US)
22nd February 2026
43AQI (US)
43AQI (US)
23rd February 2026
49AQI (US)
49AQI (US)
24th February 2026
37AQI (US)
37AQI (US)
25th February 2026
35AQI (US)
35AQI (US)
26th February 2026
15AQI (US)
15AQI (US)
27th February 2026
42AQI (US)
42AQI (US)
28th February 2026
29AQI (US)
29AQI (US)
1st March 2026
20AQI (US)
20AQI (US)
2nd March 2026
53AQI (US)
53AQI (US)
3rd March 2026
45AQI (US)
45AQI (US)
4th March 2026
41AQI (US)
41AQI (US)
5th March 2026
20AQI (US)
20AQI (US)
6th March 2026
25AQI (US)
25AQI (US)
7th March 2026
41AQI (US)
41AQI (US)
8th March 2026
36AQI (US)
36AQI (US)
9th March 2026
43AQI (US)
43AQI (US)
10th March 2026
58AQI (US)
58AQI (US)
11th March 2026
57AQI (US)
57AQI (US)
12th March 2026
63AQI (US)
63AQI (US)
13th March 2026
37AQI (US)
37AQI (US)
14th March 2026
45AQI (US)
45AQI (US)
15th March 2026
56AQI (US)
56AQI (US)
16th March 2026
48AQI (US)
48AQI (US)
17th March 2026
47AQI (US)
47AQI (US)
18th March 2026
49AQI (US)
49AQI (US)
19th March 2026
39AQI (US)
39AQI (US)
20th March 2026
29AQI (US)
29AQI (US)
21st March 2026
62AQI (US)
62AQI (US)
22nd March 2026
49AQI (US)
49AQI (US)
23rd March 2026
50AQI (US)
50AQI (US)
24th March 2026
49AQI (US)
49AQI (US)
25th March 2026
62AQI (US)
62AQI (US)
26th March 2026
31AQI (US)
31AQI (US)
27th March 2026
25AQI (US)
25AQI (US)
28th March 2026
50AQI (US)
50AQI (US)
29th March 2026
50AQI (US)
50AQI (US)
30th March 2026
57AQI (US)
57AQI (US)
31st March 2026
25AQI (US)
25AQI (US)
1st April 2026
26AQI (US)
26AQI (US)
2nd April 2026
34AQI (US)
34AQI (US)
3rd April 2026
46AQI (US)
46AQI (US)
4th April 2026
47AQI (US)
47AQI (US)
5th April 2026
38AQI (US)
38AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
28AQI (US)
28AQI (US)
8th April 2026
33AQI (US)
33AQI (US)
9th April 2026
33AQI (US)
33AQI (US)
10th April 2026
43AQI (US)
43AQI (US)
11th April 2026
50AQI (US)
50AQI (US)
12th April 2026
36AQI (US)
36AQI (US)
13th April 2026
42AQI (US)
42AQI (US)
14th April 2026
39AQI (US)
39AQI (US)
15th April 2026
38AQI (US)
38AQI (US)
16th April 2026
33AQI (US)
33AQI (US)
17th April 2026
33AQI (US)
33AQI (US)
18th April 2026
38AQI (US)
38AQI (US)
19th April 2026
39AQI (US)
39AQI (US)
20th April 2026
35AQI (US)
35AQI (US)
21st April 2026
36AQI (US)
36AQI (US)
22nd April 2026
47AQI (US)
47AQI (US)
23rd April 2026
39AQI (US)
39AQI (US)
24th April 2026
33AQI (US)
33AQI (US)
25th April 2026
46AQI (US)
46AQI (US)
26th April 2026
51AQI (US)
51AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
43AQI (US)
43AQI (US)
29th April 2026
40AQI (US)
40AQI (US)
30th April 2026
36AQI (US)
36AQI (US)
1st May 2026
47AQI (US)
47AQI (US)
2nd May 2026
50AQI (US)
50AQI (US)
3rd May 2026
53AQI (US)
53AQI (US)
4th May 2026
31AQI (US)
31AQI (US)
5th May 2026
20AQI (US)
20AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
30AQI (US)
30AQI (US)
8th May 2026
26AQI (US)
26AQI (US)
9th May 2026
27AQI (US)
27AQI (US)
10th May 2026
31AQI (US)
31AQI (US)
11th May 2026
29AQI (US)
29AQI (US)
12th May 2026
34AQI (US)
34AQI (US)
13th May 2026
39AQI (US)
39AQI (US)
14th May 2026
33AQI (US)
33AQI (US)
15th May 2026
35AQI (US)
35AQI (US)
16th May 2026
86AQI (US)
86AQI (US)
17th May 2026
69AQI (US)
69AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
48AQI (US)
48AQI (US)
20th May 2026
61AQI (US)
61AQI (US)
21st May 2026
59AQI (US)
59AQI (US)
22nd May 2026
59AQI (US)
59AQI (US)
23rd May 2026
54AQI (US)
54AQI (US)
24th May 2026
59AQI (US)
59AQI (US)
25th May 2026
47AQI (US)
47AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
24AQI (US)
24AQI (US)
28th May 2026
25AQI (US)
25AQI (US)
29th May 2026
25AQI (US)
25AQI (US)
30th May 2026
24AQI (US)
24AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
29AQI (US)
29AQI (US)
2nd June 2026
23AQI (US)
23AQI (US)
3rd June 2026
14AQI (US)
14AQI (US)
4th June 2026
22AQI (US)
22AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
21AQI (US)
21AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
21AQI (US)
21AQI (US)
9th June 2026
23AQI (US)
23AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
24AQI (US)
24AQI (US)
13th June 2026
36AQI (US)
36AQI (US)
14th June 2026
46AQI (US)
46AQI (US)
15th June 2026
14AQI (US)
14AQI (US)
16th June 2026
23AQI (US)
23AQI (US)
17th June 2026
23AQI (US)
23AQI (US)
18th June 2026
23AQI (US)
23AQI (US)
19th June 2026
25AQI (US)
25AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
19AQI (US)
19AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
22AQI (US)
22AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
30AQI (US)
30AQI (US)
27th June 2026
23AQI (US)
23AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
24AQI (US)
24AQI (US)
30th June 2026
23AQI (US)
23AQI (US)
1st July 2026
32AQI (US)
32AQI (US)
2nd July 2026
21AQI (US)
21AQI (US)
3rd July 2026
15AQI (US)
15AQI (US)
4th July 2026
38AQI (US)
38AQI (US)
5th July 2026
22AQI (US)
22AQI (US)
6th July 2026
26AQI (US)
26AQI (US)
7th July 2026
26AQI (US)
26AQI (US)
8th July 2026
24AQI (US)
24AQI (US)
9th July 2026
24AQI (US)
24AQI (US)
10th July 2026
26AQI (US)
26AQI (US)
11th July 2026
26AQI (US)
26AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
33AQI (US)
33AQI (US)
14th July 2026
38AQI (US)
38AQI (US)
15th July 2026
48AQI (US)
48AQI (US)
16th July 2026
69AQI (US)
69AQI (US)
17th July 2026
51AQI (US)
51AQI (US)
18th July 2026
22AQI (US)
22AQI (US)
19th July 2026
17AQI (US)
17AQI (US)
20th July 2026
37AQI (US)
37AQI (US)
21st July 2026
51AQI (US)
51AQI (US)
22nd July 2026
69AQI (US)
69AQI (US)
23rd July 2026
64AQI (US)
64AQI (US)
24th July 2026
43AQI (US)
43AQI (US)
25th July 2026
28AQI (US)
28AQI (US)
26th July 2026
25AQI (US)
25AQI (US)
27th July 2026
25AQI (US)
25AQI (US)
28th July 2026
33AQI (US)
33AQI (US)
29th July 2026
34AQI (US)
34AQI (US)
30th July 2026
37AQI (US)
37AQI (US)
31st July 2026
47AQI (US)
47AQI (US)
1st August 2026
58AQI (US)
58AQI (US)
2nd August 2026
47AQI (US)
47AQI (US)
3rd August 2026
19AQI (US)
19AQI (US)
4th August 2026
35AQI (US)
35AQI (US)
5th August 2026
30AQI (US)
30AQI (US)
6th August 2026
24AQI (US)
24AQI (US)
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
34AQI (US)
41AQI (US)
44AQI (US)
39AQI (US)
41AQI (US)
24AQI (US)
35AQI (US)
36AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202637AQI (US)
27
4
21
7
23
8
29
1
22
9
30
26
5
5
1
183
35
Highest AQI (US) recorded in
March44AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202536AQI (US)
31
28
28
3
30
31
30
25
6
22
9
30
19
12
15
15
15
16
304
61
Highest AQI (US) recorded in
December52AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202435AQI (US)
23
8
26
3
21
10
22
8
29
2
30
29
2
27
4
27
1
2
31
28
2
31
324
40
2
Highest AQI (US) recorded in
April48AQI (US)
Lowest AQI (US) recorded in
December26AQI (US)
202342AQI (US)
21
10
18
10
22
9
16
14
24
7
21
9
20
11
28
3
29
1
31
18
11
24
7
272
92
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202234AQI (US)
31
19
2
30
1
28
2
27
4
20
10
21
1
1
28
28
3
23
7
22
9
278
39
Highest AQI (US) recorded in
June43AQI (US)
Lowest AQI (US) recorded in
September21AQI (US)
202123AQI (US)
30
1
28
29
2
30
30
1
29
1
31
27
4
30
30
1
30
31
355
10
Highest AQI (US) recorded in
June33AQI (US)
Lowest AQI (US) recorded in
February15AQI (US)
202019AQI (US)
13
21
18
29
1
31
31
19
31
30
31
254
1
Highest AQI (US) recorded in
March25AQI (US)
Lowest AQI (US) recorded in
April13AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
42AQI (US)Least Polluted Year Recorded
2020(Avg.)
19AQI (US)Ayase's annual 2026 AQI (US) (37) shows an average percentage change of 26.8% (worsened AQI (US)) compared to previous years: 2020 (19), 2021 (23), 2022 (34), 2023 (42), 2024 (35), 2025 (36).
