Iwai, Morohongo, 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
Iwai, Morohongo, Saitama, Japan
2022
2023
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
59AQILowest AQI recorded on
24th Aug 2023
20AQISame Day Analysis (4th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 3rd highest AQI at 25 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 3rd Aug - 4th Aug 2026
Iwai, Morohongo, Saitama, Japan
AQI
Day
Night
.
4 AM3rd Aug 2026
6 PM
3 AM4th Aug 2026
Day time
Avg. Highest Time
4AM3rd Aug
25AQI
Avg. Lowest Time
10AM3rd Aug
10AQI
Night time
Avg. Highest Time
7PM3rd Aug
25AQI
Avg. Lowest Time
3AM4th Aug
21AQI
In the last 24 hours,
Iwai's AQI reached its highest point of 25 at 4 AM during the Day, while the lowest point, 10, was recorded at 10 AM during the Day between 3rd Aug and 4th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Iwai, Morohongo, Saitama, Japan
JulAug
06th - 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 - 02nd02nd - 03rd03rd - 04th04th
Day
Night
6th Jul 2026254 AMAQI
6th Jul 2026315 AMAQI
6th Jul 2026276 AMAQI
6th Jul 2026257 AMAQI
6th Jul 2026218 AMAQI
6th Jul 2026279 AMAQI
6th Jul 20262910 AMAQI
6th Jul 20263111 AMAQI
6th Jul 20263112 PMAQI
6th Jul 2026381 PMAQI
6th Jul 2026402 PMAQI
6th Jul 2026423 PMAQI
6th Jul 2026404 PMAQI
6th Jul 2026425 PMAQI
6th Jul 2026336 PMAQI
6th Jul 2026387 PMAQI
6th Jul 2026368 PMAQI
6th Jul 2026319 PMAQI
6th Jul 20262710 PMAQI
6th Jul 20263311 PMAQI
7th Jul 20263812 AMAQI
7th Jul 2026381 AMAQI
7th Jul 2026312 AMAQI
7th Jul 2026193 AMAQI
21°C20/22°C
7th Jul 2026234 AMAQI
7th Jul 2026175 AMAQI
7th Jul 2026216 AMAQI
7th Jul 2026217 AMAQI
7th Jul 2026218 AMAQI
7th Jul 2026219 AMAQI
7th Jul 20262510 AMAQI
7th Jul 20262911 AMAQI
7th Jul 20263112 PMAQI
7th Jul 2026311 PMAQI
7th Jul 2026382 PMAQI
7th Jul 2026333 PMAQI
7th Jul 2026384 PMAQI
7th Jul 2026335 PMAQI
7th Jul 2026326 PMAQI
7th Jul 2026277 PMAQI
7th Jul 2026198 PMAQI
7th Jul 2026239 PMAQI
7th Jul 20262110 PMAQI
7th Jul 20262511 PMAQI
8th Jul 20262712 AMAQI
8th Jul 2026291 AMAQI
8th Jul 2026272 AMAQI
8th Jul 2026283 AMAQI
23°C20/28°C
8th Jul 2026284 AMAQI
8th Jul 2026305 AMAQI
8th Jul 2026306 AMAQI
8th Jul 2026287 AMAQI
8th Jul 2026308 AMAQI
8th Jul 2026289 AMAQI
8th Jul 20262410 AMAQI
8th Jul 20262611 AMAQI
8th Jul 20262512 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026242 PMAQI
8th Jul 2026283 PMAQI
8th Jul 2026264 PMAQI
8th Jul 2026225 PMAQI
8th Jul 2026246 PMAQI
8th Jul 2026217 PMAQI
8th Jul 2026208 PMAQI
8th Jul 2026219 PMAQI
8th Jul 20262210 PMAQI
8th Jul 20262411 PMAQI
9th Jul 20262712 AMAQI
9th Jul 2026261 AMAQI
9th Jul 2026292 AMAQI
9th Jul 2026293 AMAQI
25°C21/30°C
9th Jul 2026274 AMAQI
9th Jul 2026265 AMAQI
9th Jul 2026266 AMAQI
9th Jul 2026277 AMAQI
9th Jul 2026288 AMAQI
9th Jul 2026259 AMAQI
9th Jul 20262410 AMAQI
9th Jul 20262411 AMAQI
9th Jul 20262412 PMAQI
9th Jul 2026231 PMAQI
9th Jul 2026262 PMAQI
9th Jul 2026283 PMAQI
9th Jul 2026274 PMAQI
9th Jul 2026255 PMAQI
9th Jul 2026246 PMAQI
9th Jul 2026247 PMAQI
9th Jul 2026248 PMAQI
9th Jul 2026249 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262511 PMAQI
10th Jul 20262712 AMAQI
10th Jul 2026281 AMAQI
10th Jul 2026252 AMAQI
10th Jul 2026263 AMAQI
26°C22/31°C
10th Jul 2026254 AMAQI
10th Jul 2026285 AMAQI
10th Jul 2026286 AMAQI
10th Jul 2026287 AMAQI
10th Jul 2026288 AMAQI
10th Jul 2026289 AMAQI
10th Jul 20262710 AMAQI
10th Jul 20262611 AMAQI
10th Jul 20262812 PMAQI
10th Jul 2026261 PMAQI
10th Jul 2026242 PMAQI
10th Jul 2026223 PMAQI
10th Jul 2026264 PMAQI
10th Jul 2026275 PMAQI
10th Jul 2026286 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026308 PMAQI
10th Jul 2026299 PMAQI
10th Jul 20263010 PMAQI
10th Jul 20262011 PMAQI
11th Jul 20263112 AMAQI
11th Jul 2026311 AMAQI
11th Jul 2026302 AMAQI
11th Jul 2026313 AMAQI
27°C23/33°C
11th Jul 2026244 AMAQI
11th Jul 2026295 AMAQI
11th Jul 2026286 AMAQI
11th Jul 2026307 AMAQI
11th Jul 2026328 AMAQI
11th Jul 2026349 AMAQI
11th Jul 20263410 AMAQI
11th Jul 20262811 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026261 PMAQI
11th Jul 2026242 PMAQI
11th Jul 2026253 PMAQI
11th Jul 2026254 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026296 PMAQI
11th Jul 2026307 PMAQI
11th Jul 2026258 PMAQI
11th Jul 2026319 PMAQI
11th Jul 20263010 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026311 AMAQI
12th Jul 2026302 AMAQI
12th Jul 2026273 AMAQI
28°C24/32°C
12th Jul 2026254 AMAQI
12th Jul 2026285 AMAQI
12th Jul 2026296 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026308 AMAQI
12th Jul 2026319 AMAQI
12th Jul 20262810 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262412 PMAQI
12th Jul 2026231 PMAQI
12th Jul 2026232 PMAQI
12th Jul 2026243 PMAQI
12th Jul 2026254 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026296 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026299 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20263212 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026313 AMAQI
26°C24/29°C
13th Jul 2026264 AMAQI
13th Jul 2026265 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026267 AMAQI
13th Jul 2026288 AMAQI
13th Jul 2026289 AMAQI
13th Jul 20263110 AMAQI
13th Jul 20262811 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026242 PMAQI
13th Jul 2026243 PMAQI
13th Jul 2026284 PMAQI
13th Jul 2026305 PMAQI
13th Jul 2026306 PMAQI
13th Jul 2026367 PMAQI
13th Jul 2026338 PMAQI
13th Jul 2026349 PMAQI
13th Jul 20263210 PMAQI
13th Jul 20263111 PMAQI
14th Jul 20263412 AMAQI
14th Jul 2026321 AMAQI
14th Jul 2026322 AMAQI
14th Jul 2026343 AMAQI
26°C25/28°C
14th Jul 2026284 AMAQI
14th Jul 2026335 AMAQI
14th Jul 2026316 AMAQI
14th Jul 2026307 AMAQI
14th Jul 2026348 AMAQI
14th Jul 2026379 AMAQI
14th Jul 20263410 AMAQI
14th Jul 20262711 AMAQI
14th Jul 20262612 PMAQI
14th Jul 2026201 PMAQI
14th Jul 2026222 PMAQI
14th Jul 2026253 PMAQI
14th Jul 2026284 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026316 PMAQI
14th Jul 2026317 PMAQI
14th Jul 2026308 PMAQI
14th Jul 2026329 PMAQI
14th Jul 20263210 PMAQI
14th Jul 20263511 PMAQI
15th Jul 20263412 AMAQI
15th Jul 2026331 AMAQI
15th Jul 2026342 AMAQI
15th Jul 2026313 AMAQI
29°C24/34°C
15th Jul 2026274 AMAQI
15th Jul 2026325 AMAQI
15th Jul 2026266 AMAQI
15th Jul 2026347 AMAQI
15th Jul 2026328 AMAQI
15th Jul 2026329 AMAQI
15th Jul 20263210 AMAQI
15th Jul 20262911 AMAQI
15th Jul 20262812 PMAQI
15th Jul 2026241 PMAQI
15th Jul 2026242 PMAQI
15th Jul 2026223 PMAQI
15th Jul 2026224 PMAQI
15th Jul 2026285 PMAQI
15th Jul 2026266 PMAQI
15th Jul 2026227 PMAQI
15th Jul 2026298 PMAQI
15th Jul 2026289 PMAQI
15th Jul 20262810 PMAQI
15th Jul 20263011 PMAQI
16th Jul 20263012 AMAQI
16th Jul 2026271 AMAQI
16th Jul 2026322 AMAQI
16th Jul 2026303 AMAQI
30°C26/36°C
16th Jul 2026304 AMAQI
16th Jul 2026325 AMAQI
16th Jul 2026326 AMAQI
16th Jul 2026327 AMAQI
16th Jul 2026348 AMAQI
16th Jul 2026329 AMAQI
16th Jul 20263010 AMAQI
16th Jul 20263411 AMAQI
16th Jul 20263012 PMAQI
16th Jul 2026301 PMAQI
16th Jul 2026302 PMAQI
16th Jul 2026283 PMAQI
16th Jul 2026274 PMAQI
16th Jul 2026595 PMAQI
16th Jul 2026556 PMAQI
16th Jul 2026567 PMAQI
16th Jul 2026508 PMAQI
16th Jul 2026609 PMAQI
16th Jul 20265010 PMAQI
16th Jul 20263111 PMAQI
17th Jul 20262712 AMAQI
17th Jul 2026271 AMAQI
17th Jul 2026232 AMAQI
17th Jul 2026253 AMAQI
30°C26/36°C
17th Jul 2026214 AMAQI
17th Jul 2026225 AMAQI
17th Jul 2026216 AMAQI
17th Jul 2026247 AMAQI
17th Jul 2026218 AMAQI
17th Jul 2026229 AMAQI
17th Jul 20263110 AMAQI
17th Jul 20264211 AMAQI
17th Jul 20265012 PMAQI
17th Jul 2026401 PMAQI
17th Jul 2026322 PMAQI
17th Jul 2026303 PMAQI
17th Jul 2026524 PMAQI
17th Jul 2026425 PMAQI
17th Jul 2026366 PMAQI
17th Jul 2026427 PMAQI
17th Jul 2026448 PMAQI
17th Jul 2026509 PMAQI
17th Jul 20264810 PMAQI
17th Jul 20265011 PMAQI
18th Jul 20264812 AMAQI
18th Jul 2026401 AMAQI
18th Jul 2026422 AMAQI
18th Jul 2026403 AMAQI
28°C25/30°C
18th Jul 2026364 AMAQI
18th Jul 2026365 AMAQI
18th Jul 2026316 AMAQI
18th Jul 2026337 AMAQI
18th Jul 2026298 AMAQI
18th Jul 2026279 AMAQI
18th Jul 20262110 AMAQI
18th Jul 20262111 AMAQI
18th Jul 20262312 PMAQI
18th Jul 2026231 PMAQI
18th Jul 2026232 PMAQI
18th Jul 2026233 PMAQI
18th Jul 2026254 PMAQI
18th Jul 2026255 PMAQI
18th Jul 2026326 PMAQI
18th Jul 2026327 PMAQI
18th Jul 2026388 PMAQI
18th Jul 2026409 PMAQI
18th Jul 20263810 PMAQI
18th Jul 20263411 PMAQI
19th Jul 20263812 AMAQI
19th Jul 2026381 AMAQI
19th Jul 2026332 AMAQI
19th Jul 2026293 AMAQI
27°C25/29°C
19th Jul 2026274 AMAQI
19th Jul 2026295 AMAQI
19th Jul 2026296 AMAQI
19th Jul 2026337 AMAQI
19th Jul 2026388 AMAQI
19th Jul 2026389 AMAQI
19th Jul 20264010 AMAQI
19th Jul 20263311 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026231 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026214 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026237 PMAQI
19th Jul 2026238 PMAQI
19th Jul 2026329 PMAQI
19th Jul 20263410 PMAQI
19th Jul 20262911 PMAQI
20th Jul 20262512 AMAQI
20th Jul 2026251 AMAQI
20th Jul 2026272 AMAQI
20th Jul 2026293 AMAQI
28°C24/33°C
20th Jul 2026254 AMAQI
20th Jul 2026235 AMAQI
20th Jul 2026256 AMAQI
20th Jul 2026217 AMAQI
20th Jul 2026218 AMAQI
20th Jul 2026239 AMAQI
20th Jul 20262510 AMAQI
20th Jul 20263111 AMAQI
20th Jul 20262912 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026252 PMAQI
20th Jul 2026273 PMAQI
20th Jul 2026254 PMAQI
20th Jul 2026275 PMAQI
20th Jul 2026296 PMAQI
20th Jul 2026317 PMAQI
20th Jul 2026318 PMAQI
20th Jul 2026299 PMAQI
20th Jul 20262710 PMAQI
20th Jul 20262911 PMAQI
21st Jul 20262912 AMAQI
21st Jul 2026291 AMAQI
21st Jul 2026292 AMAQI
21st Jul 2026273 AMAQI
31°C26/37°C
21st Jul 2026314 AMAQI
21st Jul 2026425 AMAQI
21st Jul 2026506 AMAQI
21st Jul 2026537 AMAQI
21st Jul 2026528 AMAQI
21st Jul 2026539 AMAQI
21st Jul 20265010 AMAQI
21st Jul 20265111 AMAQI
21st Jul 2026511 PMAQI
21st Jul 2026482 PMAQI
21st Jul 2026513 PMAQI
21st Jul 2026534 PMAQI
21st Jul 2026535 PMAQI
21st Jul 2026546 PMAQI
21st Jul 2026947 PMAQI
21st Jul 2026558 PMAQI
21st Jul 2026539 PMAQI
21st Jul 20265410 PMAQI
21st Jul 20265311 PMAQI
22nd Jul 20265312 AMAQI
22nd Jul 2026551 AMAQI
22nd Jul 2026562 AMAQI
22nd Jul 2026523 AMAQI
32°C27/38°C
22nd Jul 2026524 AMAQI
22nd Jul 2026595 AMAQI
22nd Jul 2026556 AMAQI
22nd Jul 2026577 AMAQI
22nd Jul 2026638 AMAQI
22nd Jul 2026559 AMAQI
22nd Jul 20265510 AMAQI
22nd Jul 20266211 AMAQI
22nd Jul 20266412 PMAQI
22nd Jul 2026641 PMAQI
22nd Jul 2026642 PMAQI
22nd Jul 2026643 PMAQI
22nd Jul 2026624 PMAQI
22nd Jul 2026645 PMAQI
22nd Jul 2026676 PMAQI
22nd Jul 2026657 PMAQI
22nd Jul 2026648 PMAQI
22nd Jul 2026629 PMAQI
22nd Jul 20266310 PMAQI
22nd Jul 20266511 PMAQI
23rd Jul 20265812 AMAQI
23rd Jul 2026551 AMAQI
23rd Jul 2026442 AMAQI
23rd Jul 2026403 AMAQI
32°C27/37°C
23rd Jul 2026484 AMAQI
23rd Jul 2026465 AMAQI
23rd Jul 2026516 AMAQI
23rd Jul 2026537 AMAQI
23rd Jul 2026548 AMAQI
23rd Jul 2026629 AMAQI
23rd Jul 20266010 AMAQI
23rd Jul 20265711 AMAQI
23rd Jul 20265412 PMAQI
23rd Jul 2026531 PMAQI
23rd Jul 2026502 PMAQI
23rd Jul 2026443 PMAQI
23rd Jul 2026524 PMAQI
23rd Jul 2026655 PMAQI
23rd Jul 2026656 PMAQI
23rd Jul 2026597 PMAQI
23rd Jul 2026568 PMAQI
23rd Jul 2026529 PMAQI
23rd Jul 20264610 PMAQI
23rd Jul 20264211 PMAQI
24th Jul 20263312 AMAQI
24th Jul 2026311 AMAQI
24th Jul 2026292 AMAQI
24th Jul 2026293 AMAQI
31°C27/37°C
24th Jul 2026334 AMAQI
24th Jul 2026275 AMAQI
24th Jul 2026256 AMAQI
24th Jul 2026257 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20262710 AMAQI
24th Jul 20263411 AMAQI
24th Jul 20263612 PMAQI
24th Jul 2026481 PMAQI
24th Jul 2026532 PMAQI
24th Jul 2026553 PMAQI
24th Jul 2026604 PMAQI
24th Jul 2026655 PMAQI
24th Jul 2026596 PMAQI
24th Jul 2026547 PMAQI
24th Jul 2026518 PMAQI
24th Jul 2026469 PMAQI
24th Jul 20264610 PMAQI
24th Jul 20264611 PMAQI
25th Jul 20264212 AMAQI
25th Jul 2026401 AMAQI
25th Jul 2026422 AMAQI
25th Jul 2026383 AMAQI
29°C26/33°C
25th Jul 2026334 AMAQI
25th Jul 2026315 AMAQI
25th Jul 2026336 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026388 AMAQI
25th Jul 2026369 AMAQI
25th Jul 20263810 AMAQI
25th Jul 20264611 AMAQI
25th Jul 20264812 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026422 PMAQI
25th Jul 2026383 PMAQI
25th Jul 2026314 PMAQI
25th Jul 2026295 PMAQI
25th Jul 2026256 PMAQI
25th Jul 2026297 PMAQI
25th Jul 2026278 PMAQI
25th Jul 2026219 PMAQI
25th Jul 20262110 PMAQI
25th Jul 20262111 PMAQI
26th Jul 20264412 AMAQI
26th Jul 2026311 AMAQI
26th Jul 2026332 AMAQI
26th Jul 2026253 AMAQI
29°C25/35°C
26th Jul 2026334 AMAQI
26th Jul 2026295 AMAQI
26th Jul 2026296 AMAQI
26th Jul 2026217 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026259 AMAQI
26th Jul 20262110 AMAQI
26th Jul 20262511 AMAQI
26th Jul 20262912 PMAQI
26th Jul 2026311 PMAQI
26th Jul 2026312 PMAQI
26th Jul 2026293 PMAQI
26th Jul 2026254 PMAQI
26th Jul 2026215 PMAQI
26th Jul 2026256 PMAQI
26th Jul 2026217 PMAQI
26th Jul 2026258 PMAQI
26th Jul 2026259 PMAQI
26th Jul 20262310 PMAQI
26th Jul 20262311 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026251 AMAQI
27th Jul 2026292 AMAQI
27th Jul 2026253 AMAQI
27°C25/31°C
27th Jul 2026214 AMAQI
27th Jul 2026215 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026218 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20262910 AMAQI
27th Jul 20262111 AMAQI
27th Jul 20262112 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026292 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026215 PMAQI
27th Jul 2026216 PMAQI
27th Jul 2026217 PMAQI
27th Jul 2026258 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20262110 PMAQI
27th Jul 20262111 PMAQI
28th Jul 20262512 AMAQI
28th Jul 2026211 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026233 AMAQI
26°C23/31°C
28th Jul 2026254 AMAQI
28th Jul 2026235 AMAQI
28th Jul 2026216 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026218 AMAQI
28th Jul 2026219 AMAQI
28th Jul 20262110 AMAQI
28th Jul 20262311 AMAQI
28th Jul 20262712 PMAQI
28th Jul 2026311 PMAQI
28th Jul 2026312 PMAQI
28th Jul 2026343 PMAQI
28th Jul 2026364 PMAQI
28th Jul 2026405 PMAQI
28th Jul 2026336 PMAQI
28th Jul 2026387 PMAQI
28th Jul 2026388 PMAQI
28th Jul 2026409 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20264011 PMAQI
29th Jul 20264012 AMAQI
29th Jul 2026331 AMAQI
29th Jul 2026332 AMAQI
29th Jul 2026333 AMAQI
25°C23/29°C
29th Jul 2026384 AMAQI
29th Jul 2026295 AMAQI
29th Jul 2026316 AMAQI
29th Jul 2026297 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026279 AMAQI
29th Jul 20262310 AMAQI
29th Jul 20262111 AMAQI
29th Jul 20262112 PMAQI
29th Jul 2026321 PMAQI
29th Jul 2026212 PMAQI
29th Jul 2026293 PMAQI
29th Jul 2026234 PMAQI
29th Jul 2026255 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026337 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20261911 PMAQI
30th Jul 20262512 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026212 AMAQI
30th Jul 2026293 AMAQI
28°C22/35°C
30th Jul 2026214 AMAQI
30th Jul 2026235 AMAQI
30th Jul 2026256 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026258 AMAQI
30th Jul 2026259 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262711 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026311 PMAQI
30th Jul 2026332 PMAQI
30th Jul 2026273 PMAQI
30th Jul 2026254 PMAQI
30th Jul 2026255 PMAQI
30th Jul 2026446 PMAQI
30th Jul 2026477 PMAQI
30th Jul 2026488 PMAQI
30th Jul 2026499 PMAQI
30th Jul 20264210 PMAQI
30th Jul 20264011 PMAQI
31st Jul 20263412 AMAQI
31st Jul 2026311 AMAQI
31st Jul 2026542 AMAQI
31st Jul 2026543 AMAQI
30°C25/35°C
31st Jul 2026524 AMAQI
31st Jul 2026545 AMAQI
31st Jul 2026546 AMAQI
31st Jul 2026517 AMAQI
31st Jul 2026538 AMAQI
31st Jul 2026529 AMAQI
31st Jul 20265010 AMAQI
31st Jul 20265011 AMAQI
31st Jul 20265112 PMAQI
31st Jul 2026481 PMAQI
31st Jul 2026442 PMAQI
31st Jul 2026443 PMAQI
31st Jul 2026464 PMAQI
31st Jul 2026385 PMAQI
31st Jul 2026466 PMAQI
31st Jul 2026547 PMAQI
31st Jul 2026558 PMAQI
31st Jul 2026549 PMAQI
31st Jul 20265410 PMAQI
31st Jul 20265411 PMAQI
1st Aug 20265712 AMAQI
1st Aug 2026551 AMAQI
1st Aug 2026572 AMAQI
1st Aug 2026563 AMAQI
30°C25/35°C
1st Aug 2026554 AMAQI
1st Aug 2026545 AMAQI
1st Aug 2026556 AMAQI
1st Aug 2026567 AMAQI
1st Aug 2026558 AMAQI
1st Aug 2026549 AMAQI
1st Aug 20264210 AMAQI
1st Aug 20264811 AMAQI
1st Aug 20265012 PMAQI
1st Aug 2026421 PMAQI
1st Aug 2026512 PMAQI
1st Aug 2026443 PMAQI
1st Aug 2026424 PMAQI
1st Aug 2026445 PMAQI
1st Aug 2026406 PMAQI
1st Aug 2026367 PMAQI
1st Aug 2026608 PMAQI
1st Aug 2026649 PMAQI
1st Aug 20264810 PMAQI
1st Aug 20266211 PMAQI
2nd Aug 20265812 AMAQI
2nd Aug 2026531 AMAQI
2nd Aug 2026422 AMAQI
2nd Aug 2026363 AMAQI
31°C26/36°C
2nd Aug 2026404 AMAQI
2nd Aug 2026385 AMAQI
2nd Aug 2026386 AMAQI
2nd Aug 2026407 AMAQI
2nd Aug 2026368 AMAQI
2nd Aug 2026389 AMAQI
2nd Aug 20263810 AMAQI
2nd Aug 20263811 AMAQI
2nd Aug 20264012 PMAQI
2nd Aug 2026381 PMAQI
2nd Aug 2026402 PMAQI
2nd Aug 2026463 PMAQI
2nd Aug 2026464 PMAQI
2nd Aug 2026445 PMAQI
2nd Aug 2026506 PMAQI
2nd Aug 2026387 PMAQI
2nd Aug 2026258 PMAQI
2nd Aug 2026239 PMAQI
2nd Aug 20262910 PMAQI
2nd Aug 20262511 PMAQI
3rd Aug 20261212 AMAQI
3rd Aug 2026331 AMAQI
3rd Aug 2026292 AMAQI
3rd Aug 2026253 AMAQI
30°C24/36°C
3rd Aug 2026254 AMAQI
3rd Aug 2026255 AMAQI
3rd Aug 2026256 AMAQI
3rd Aug 2026107 AMAQI
3rd Aug 2026258 AMAQI
3rd Aug 2026129 AMAQI
3rd Aug 20261010 AMAQI
3rd Aug 20261611 AMAQI
3rd Aug 20262112 PMAQI
3rd Aug 2026211 PMAQI
3rd Aug 2026212 PMAQI
3rd Aug 2026233 PMAQI
3rd Aug 2026254 PMAQI
3rd Aug 2026255 PMAQI
3rd Aug 2026256 PMAQI
3rd Aug 2026257 PMAQI
3rd Aug 2026218 PMAQI
3rd Aug 2026239 PMAQI
3rd Aug 20262110 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20262312 AMAQI
4th Aug 2026231 AMAQI
4th Aug 2026212 AMAQI
4th Aug 2026213 AMAQI
23°C22/25°C
4th Aug 2026214 AMAQI
4 AM4th Aug 2026215 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026217 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262511 AMAQI
11 AM4th Aug 20262312 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026272 PMAQI
4th Aug 2026293 PMAQI
4th Aug 2026274 PMAQI
4th Aug 2026295 PMAQI
4th Aug 2026336 PMAQI
6 PM4th Aug 2026387 PMAQI
4th Aug 2026298 PMAQI
4th Aug 2026279 PMAQI
4th Aug 20262510 PMAQI
4th Aug 20262511 PMAQI
11 PM3 AM
25°C21/30°C
Day time
Avg. Highest Time
1 PM - 6 PM
34AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
4 AM - 5 AM
31AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 6 PM (Avg. 34), while the lowest AQI was between 4 AM to 5 AM (Avg. 31).
Night time
Avg. Highest Time
7 PM - 9 PM
36AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 9 PM (Avg. 36), while the lowest AQI was between 3 AM to 3 AM (Avg. 32).
2026 Days Vs Air Quality
Iwai, Morohongo, Saitama, Japan
2026
85%
183
15%
33
Total number of days with different AQI categories in last 216 days in 2026 (149 days remaining)
Good
183 DaysModerate
33 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2026, 85% of 216 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
Iwai, Morohongo, 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
26AQI (US)
26AQI (US)
2nd January 2026
22AQI (US)
22AQI (US)
3rd January 2026
22AQI (US)
22AQI (US)
4th January 2026
27AQI (US)
27AQI (US)
5th January 2026
36AQI (US)
36AQI (US)
6th January 2026
23AQI (US)
23AQI (US)
7th January 2026
34AQI (US)
34AQI (US)
8th January 2026
31AQI (US)
31AQI (US)
9th January 2026
24AQI (US)
24AQI (US)
10th January 2026
41AQI (US)
41AQI (US)
11th January 2026
36AQI (US)
36AQI (US)
12th January 2026
15AQI (US)
15AQI (US)
13th January 2026
28AQI (US)
28AQI (US)
14th January 2026
22AQI (US)
22AQI (US)
15th January 2026
34AQI (US)
34AQI (US)
16th January 2026
47AQI (US)
47AQI (US)
17th January 2026
53AQI (US)
53AQI (US)
18th January 2026
36AQI (US)
36AQI (US)
19th January 2026
60AQI (US)
60AQI (US)
20th January 2026
37AQI (US)
37AQI (US)
21st January 2026
18AQI (US)
18AQI (US)
22nd January 2026
24AQI (US)
24AQI (US)
23rd January 2026
35AQI (US)
35AQI (US)
24th January 2026
39AQI (US)
39AQI (US)
25th January 2026
45AQI (US)
45AQI (US)
26th January 2026
29AQI (US)
29AQI (US)
27th January 2026
36AQI (US)
36AQI (US)
28th January 2026
27AQI (US)
27AQI (US)
29th January 2026
23AQI (US)
23AQI (US)
30th January 2026
34AQI (US)
34AQI (US)
31st January 2026
35AQI (US)
35AQI (US)
1st February 2026
36AQI (US)
36AQI (US)
2nd February 2026
42AQI (US)
42AQI (US)
3rd February 2026
31AQI (US)
31AQI (US)
4th February 2026
37AQI (US)
37AQI (US)
5th February 2026
46AQI (US)
46AQI (US)
6th February 2026
44AQI (US)
44AQI (US)
7th February 2026
13AQI (US)
13AQI (US)
8th February 2026
18AQI (US)
18AQI (US)
9th February 2026
37AQI (US)
37AQI (US)
10th February 2026
21AQI (US)
21AQI (US)
11th February 2026
28AQI (US)
28AQI (US)
12th February 2026
25AQI (US)
25AQI (US)
13th February 2026
45AQI (US)
45AQI (US)
14th February 2026
66AQI (US)
66AQI (US)
15th February 2026
62AQI (US)
62AQI (US)
16th February 2026
38AQI (US)
38AQI (US)
17th February 2026
19AQI (US)
19AQI (US)
18th February 2026
33AQI (US)
33AQI (US)
19th February 2026
31AQI (US)
31AQI (US)
20th February 2026
32AQI (US)
32AQI (US)
21st February 2026
42AQI (US)
42AQI (US)
22nd February 2026
40AQI (US)
40AQI (US)
23rd February 2026
43AQI (US)
43AQI (US)
24th February 2026
41AQI (US)
41AQI (US)
25th February 2026
40AQI (US)
40AQI (US)
26th February 2026
10AQI (US)
10AQI (US)
27th February 2026
27AQI (US)
27AQI (US)
28th February 2026
47AQI (US)
47AQI (US)
1st March 2026
41AQI (US)
41AQI (US)
2nd March 2026
82AQI (US)
82AQI (US)
3rd March 2026
45AQI (US)
45AQI (US)
4th March 2026
59AQI (US)
59AQI (US)
5th March 2026
59AQI (US)
59AQI (US)
6th March 2026
53AQI (US)
53AQI (US)
7th March 2026
49AQI (US)
49AQI (US)
8th March 2026
45AQI (US)
45AQI (US)
9th March 2026
53AQI (US)
53AQI (US)
10th March 2026
59AQI (US)
59AQI (US)
11th March 2026
60AQI (US)
60AQI (US)
12th March 2026
70AQI (US)
70AQI (US)
13th March 2026
42AQI (US)
42AQI (US)
14th March 2026
37AQI (US)
37AQI (US)
15th March 2026
17AQI (US)
17AQI (US)
16th March 2026
31AQI (US)
31AQI (US)
17th March 2026
57AQI (US)
57AQI (US)
18th March 2026
57AQI (US)
57AQI (US)
19th March 2026
35AQI (US)
35AQI (US)
20th March 2026
33AQI (US)
33AQI (US)
21st March 2026
50AQI (US)
50AQI (US)
22nd March 2026
58AQI (US)
58AQI (US)
23rd March 2026
55AQI (US)
55AQI (US)
24th March 2026
47AQI (US)
47AQI (US)
25th March 2026
65AQI (US)
65AQI (US)
26th March 2026
24AQI (US)
24AQI (US)
27th March 2026
22AQI (US)
22AQI (US)
28th March 2026
47AQI (US)
47AQI (US)
29th March 2026
57AQI (US)
57AQI (US)
30th March 2026
58AQI (US)
58AQI (US)
31st March 2026
35AQI (US)
35AQI (US)
1st April 2026
17AQI (US)
17AQI (US)
2nd April 2026
24AQI (US)
24AQI (US)
3rd April 2026
46AQI (US)
46AQI (US)
4th April 2026
54AQI (US)
54AQI (US)
5th April 2026
32AQI (US)
32AQI (US)
6th April 2026
24AQI (US)
24AQI (US)
7th April 2026
44AQI (US)
44AQI (US)
8th April 2026
26AQI (US)
26AQI (US)
9th April 2026
32AQI (US)
32AQI (US)
10th April 2026
49AQI (US)
49AQI (US)
11th April 2026
37AQI (US)
37AQI (US)
12th April 2026
35AQI (US)
35AQI (US)
13th April 2026
36AQI (US)
36AQI (US)
14th April 2026
43AQI (US)
43AQI (US)
15th April 2026
44AQI (US)
44AQI (US)
16th April 2026
33AQI (US)
33AQI (US)
17th April 2026
35AQI (US)
35AQI (US)
18th April 2026
35AQI (US)
35AQI (US)
19th April 2026
40AQI (US)
40AQI (US)
20th April 2026
38AQI (US)
38AQI (US)
21st April 2026
41AQI (US)
41AQI (US)
22nd April 2026
48AQI (US)
48AQI (US)
23rd April 2026
38AQI (US)
38AQI (US)
24th April 2026
32AQI (US)
32AQI (US)
25th April 2026
46AQI (US)
46AQI (US)
26th April 2026
52AQI (US)
52AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
42AQI (US)
42AQI (US)
29th April 2026
40AQI (US)
40AQI (US)
30th April 2026
39AQI (US)
39AQI (US)
1st May 2026
48AQI (US)
48AQI (US)
2nd May 2026
51AQI (US)
51AQI (US)
3rd May 2026
45AQI (US)
45AQI (US)
4th May 2026
30AQI (US)
30AQI (US)
5th May 2026
24AQI (US)
24AQI (US)
6th May 2026
32AQI (US)
32AQI (US)
7th May 2026
34AQI (US)
34AQI (US)
8th May 2026
28AQI (US)
28AQI (US)
9th May 2026
26AQI (US)
26AQI (US)
10th May 2026
28AQI (US)
28AQI (US)
11th May 2026
33AQI (US)
33AQI (US)
12th May 2026
37AQI (US)
37AQI (US)
13th May 2026
45AQI (US)
45AQI (US)
14th May 2026
40AQI (US)
40AQI (US)
15th May 2026
37AQI (US)
37AQI (US)
16th May 2026
85AQI (US)
85AQI (US)
17th May 2026
68AQI (US)
68AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
48AQI (US)
48AQI (US)
20th May 2026
62AQI (US)
62AQI (US)
21st May 2026
59AQI (US)
59AQI (US)
22nd May 2026
61AQI (US)
61AQI (US)
23rd May 2026
55AQI (US)
55AQI (US)
24th May 2026
58AQI (US)
58AQI (US)
25th May 2026
48AQI (US)
48AQI (US)
26th May 2026
40AQI (US)
40AQI (US)
27th May 2026
26AQI (US)
26AQI (US)
28th May 2026
26AQI (US)
26AQI (US)
29th May 2026
25AQI (US)
25AQI (US)
30th May 2026
24AQI (US)
24AQI (US)
31st May 2026
28AQI (US)
28AQI (US)
1st June 2026
30AQI (US)
30AQI (US)
2nd June 2026
32AQI (US)
32AQI (US)
3rd June 2026
11AQI (US)
11AQI (US)
4th June 2026
20AQI (US)
20AQI (US)
5th June 2026
22AQI (US)
22AQI (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
23AQI (US)
23AQI (US)
11th June 2026
26AQI (US)
26AQI (US)
12th June 2026
25AQI (US)
25AQI (US)
13th June 2026
28AQI (US)
28AQI (US)
14th June 2026
25AQI (US)
25AQI (US)
15th June 2026
20AQI (US)
20AQI (US)
16th June 2026
26AQI (US)
26AQI (US)
17th June 2026
25AQI (US)
25AQI (US)
18th June 2026
26AQI (US)
26AQI (US)
19th June 2026
31AQI (US)
31AQI (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
22AQI (US)
22AQI (US)
24th June 2026
22AQI (US)
22AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
28AQI (US)
28AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
27AQI (US)
27AQI (US)
30th June 2026
25AQI (US)
25AQI (US)
1st July 2026
27AQI (US)
27AQI (US)
2nd July 2026
21AQI (US)
21AQI (US)
3rd July 2026
13AQI (US)
13AQI (US)
4th July 2026
36AQI (US)
36AQI (US)
5th July 2026
17AQI (US)
17AQI (US)
6th July 2026
32AQI (US)
32AQI (US)
7th July 2026
27AQI (US)
27AQI (US)
8th July 2026
26AQI (US)
26AQI (US)
9th July 2026
26AQI (US)
26AQI (US)
10th July 2026
27AQI (US)
27AQI (US)
11th July 2026
29AQI (US)
29AQI (US)
12th July 2026
28AQI (US)
28AQI (US)
13th July 2026
29AQI (US)
29AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
29AQI (US)
29AQI (US)
16th July 2026
37AQI (US)
37AQI (US)
17th July 2026
34AQI (US)
34AQI (US)
18th July 2026
32AQI (US)
32AQI (US)
19th July 2026
30AQI (US)
30AQI (US)
20th July 2026
26AQI (US)
26AQI (US)
21st July 2026
48AQI (US)
48AQI (US)
22nd July 2026
60AQI (US)
60AQI (US)
23rd July 2026
53AQI (US)
53AQI (US)
24th July 2026
40AQI (US)
40AQI (US)
25th July 2026
34AQI (US)
34AQI (US)
26th July 2026
27AQI (US)
27AQI (US)
27th July 2026
24AQI (US)
24AQI (US)
28th July 2026
29AQI (US)
29AQI (US)
29th July 2026
28AQI (US)
28AQI (US)
30th July 2026
30AQI (US)
30AQI (US)
31st July 2026
49AQI (US)
49AQI (US)
1st August 2026
51AQI (US)
51AQI (US)
2nd August 2026
39AQI (US)
39AQI (US)
3rd August 2026
22AQI (US)
22AQI (US)
4th August 2026
25AQI (US)
25AQI (US)
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)
36AQI (US)
48AQI (US)
38AQI (US)
42AQI (US)
24AQI (US)
32AQI (US)
34AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202636AQI (US)
29
2
26
2
16
15
28
2
22
9
30
29
2
3
1
183
33
Highest AQI (US) recorded in
March48AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202542AQI (US)
30
1
28
22
9
22
8
27
4
27
3
22
9
23
8
29
1
12
19
16
14
17
14
275
90
Highest AQI (US) recorded in
October51AQI (US)
Lowest AQI (US) recorded in
September35AQI (US)
202344AQI (US)
25
5
21
7
17
14
12
18
22
9
18
12
15
16
30
1
27
3
29
2
20
9
24
7
260
103
Highest AQI (US) recorded in
April53AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202241AQI (US)
29
1
20
1
20
11
18
12
23
8
17
13
18
6
1
19
9
27
4
22
8
31
245
73
Highest AQI (US) recorded in
June50AQI (US)
Lowest AQI (US) recorded in
December29AQI (US)
202139AQI (US)
25
6
22
6
21
8
2
24
6
24
7
22
8
29
2
23
8
26
4
27
4
28
2
30
1
301
62
2
Highest AQI (US) recorded in
March47AQI (US)
Lowest AQI (US) recorded in
December35AQI (US)
202037AQI (US)
11
2
17
4
17
1
21
9
27
4
14
17
18
1
27
4
21
9
28
3
201
54
Highest AQI (US) recorded in
August50AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
44AQI (US)Least Polluted Year Recorded
2026(Avg.)
36AQI (US)Iwai's annual 2026 AQI (US) (36) shows an average percentage change of -11.01% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (39), 2022 (41), 2023 (44), 2025 (42).
