Sekiyama, Hasuda, 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
Sekiyama, Hasuda, Saitama, Japan
2022
2023
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
59AQILowest AQI recorded on
22nd Aug 2023
19AQISame Day Analysis (9th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 2nd highest AQI at 25 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Sekiyama, Hasuda, Saitama, Japan
AQI
Day
Night
.
4 AM8th Aug 2026
6 PM
3 AM9th Aug 2026
Day time
Avg. Highest Time
12PM8th Aug
27AQI
Avg. Lowest Time
6PM8th Aug
21AQI
Night time
Avg. Highest Time
12AM9th Aug
31AQI
Avg. Lowest Time
3AM9th Aug
21AQI
In the last 24 hours,
Sekiyama's AQI reached its highest point of 31 at 12 AM during the Night, while the lowest point, 21, was recorded at 3 AM during the Night between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Sekiyama, Hasuda, Saitama, Japan
JulAug
11th - 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 - 07th07th - 08th08th - 09th09th
Day
Night
11th Jul 2026204 AMAQI
11th Jul 2026285 AMAQI
11th Jul 2026326 AMAQI
11th Jul 2026307 AMAQI
11th Jul 2026288 AMAQI
11th Jul 2026309 AMAQI
11th Jul 20263210 AMAQI
11th Jul 20262611 AMAQI
11th Jul 20262612 PMAQI
11th Jul 2026241 PMAQI
11th Jul 2026262 PMAQI
11th Jul 2026233 PMAQI
11th Jul 2026264 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026268 PMAQI
11th Jul 2026309 PMAQI
11th Jul 20263110 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026292 AMAQI
12th Jul 2026303 AMAQI
29°C25/34°C
12th Jul 2026264 AMAQI
12th Jul 2026265 AMAQI
12th Jul 2026286 AMAQI
12th Jul 2026287 AMAQI
12th Jul 2026268 AMAQI
12th Jul 2026289 AMAQI
12th Jul 20263010 AMAQI
12th Jul 20262411 AMAQI
12th Jul 20262412 PMAQI
12th Jul 2026251 PMAQI
12th Jul 2026242 PMAQI
12th Jul 2026243 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026325 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026307 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026329 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20262811 PMAQI
13th Jul 20263112 AMAQI
13th Jul 2026281 AMAQI
13th Jul 2026312 AMAQI
13th Jul 2026323 AMAQI
27°C25/30°C
13th Jul 2026304 AMAQI
13th Jul 2026305 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026317 AMAQI
13th Jul 2026308 AMAQI
13th Jul 2026329 AMAQI
13th Jul 20263210 AMAQI
13th Jul 20262811 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026252 PMAQI
13th Jul 2026273 PMAQI
13th Jul 2026304 PMAQI
13th Jul 2026335 PMAQI
13th Jul 2026346 PMAQI
13th Jul 2026327 PMAQI
13th Jul 2026318 PMAQI
13th Jul 2026309 PMAQI
13th Jul 20263210 PMAQI
13th Jul 20263011 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026331 AMAQI
14th Jul 2026332 AMAQI
14th Jul 2026313 AMAQI
28°C26/31°C
14th Jul 2026264 AMAQI
14th Jul 2026315 AMAQI
14th Jul 2026366 AMAQI
14th Jul 2026347 AMAQI
14th Jul 2026308 AMAQI
14th Jul 2026339 AMAQI
14th Jul 20263410 AMAQI
14th Jul 20262811 AMAQI
14th Jul 20262612 PMAQI
14th Jul 2026221 PMAQI
14th Jul 2026222 PMAQI
14th Jul 2026203 PMAQI
14th Jul 2026244 PMAQI
14th Jul 2026295 PMAQI
14th Jul 2026286 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026308 PMAQI
14th Jul 2026309 PMAQI
14th Jul 20263110 PMAQI
14th Jul 20263111 PMAQI
15th Jul 20263212 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026362 AMAQI
15th Jul 2026313 AMAQI
30°C26/36°C
15th Jul 2026304 AMAQI
15th Jul 2026325 AMAQI
15th Jul 2026286 AMAQI
15th Jul 2026327 AMAQI
15th Jul 2026328 AMAQI
15th Jul 2026329 AMAQI
15th Jul 20263210 AMAQI
15th Jul 20262911 AMAQI
15th Jul 20262412 PMAQI
15th Jul 2026241 PMAQI
15th Jul 2026232 PMAQI
15th Jul 2026243 PMAQI
15th Jul 2026244 PMAQI
15th Jul 2026245 PMAQI
15th Jul 2026276 PMAQI
15th Jul 2026267 PMAQI
15th Jul 2026278 PMAQI
15th Jul 2026289 PMAQI
15th Jul 20262810 PMAQI
15th Jul 20263011 PMAQI
16th Jul 20262812 AMAQI
16th Jul 2026241 AMAQI
16th Jul 2026302 AMAQI
16th Jul 2026313 AMAQI
32°C28/37°C
16th Jul 2026284 AMAQI
16th Jul 2026305 AMAQI
16th Jul 2026316 AMAQI
16th Jul 2026347 AMAQI
16th Jul 2026328 AMAQI
16th Jul 2026309 AMAQI
16th Jul 20263310 AMAQI
16th Jul 20262811 AMAQI
16th Jul 20263112 PMAQI
16th Jul 2026301 PMAQI
16th Jul 2026622 PMAQI
16th Jul 2026583 PMAQI
16th Jul 2026584 PMAQI
16th Jul 2026585 PMAQI
16th Jul 2026606 PMAQI
16th Jul 2026687 PMAQI
16th Jul 2026668 PMAQI
16th Jul 2026629 PMAQI
16th Jul 20264910 PMAQI
16th Jul 20264011 PMAQI
17th Jul 20263612 AMAQI
17th Jul 2026311 AMAQI
17th Jul 2026262 AMAQI
17th Jul 2026213 AMAQI
32°C27/37°C
17th Jul 2026214 AMAQI
17th Jul 2026235 AMAQI
17th Jul 2026256 AMAQI
17th Jul 2026297 AMAQI
17th Jul 2026428 AMAQI
17th Jul 2026509 AMAQI
17th Jul 20265510 AMAQI
17th Jul 20266311 AMAQI
17th Jul 20266512 PMAQI
17th Jul 2026621 PMAQI
17th Jul 2026602 PMAQI
17th Jul 2026543 PMAQI
17th Jul 2026504 PMAQI
17th Jul 2026485 PMAQI
17th Jul 2026386 PMAQI
17th Jul 2026337 PMAQI
17th Jul 2026488 PMAQI
17th Jul 2026599 PMAQI
17th Jul 20266010 PMAQI
17th Jul 20265011 PMAQI
18th Jul 20264812 AMAQI
18th Jul 2026461 AMAQI
18th Jul 2026402 AMAQI
18th Jul 2026383 AMAQI
29°C27/31°C
18th Jul 2026334 AMAQI
18th Jul 2026335 AMAQI
18th Jul 2026296 AMAQI
18th Jul 2026237 AMAQI
18th Jul 2026198 AMAQI
18th Jul 2026129 AMAQI
18th Jul 20261710 AMAQI
18th Jul 20262511 AMAQI
18th Jul 20263112 PMAQI
18th Jul 2026231 PMAQI
18th Jul 2026312 PMAQI
18th Jul 2026313 PMAQI
18th Jul 2026124 PMAQI
18th Jul 2026145 PMAQI
18th Jul 2026196 PMAQI
18th Jul 2026187 PMAQI
18th Jul 2026218 PMAQI
18th Jul 2026189 PMAQI
18th Jul 20263310 PMAQI
18th Jul 20264211 PMAQI
19th Jul 20263812 AMAQI
19th Jul 2026291 AMAQI
19th Jul 2026232 AMAQI
19th Jul 2026143 AMAQI
29°C26/32°C
19th Jul 2026124 AMAQI
19th Jul 2026105 AMAQI
19th Jul 202676 AMAQI
19th Jul 202687 AMAQI
19th Jul 202688 AMAQI
19th Jul 202689 AMAQI
19th Jul 2026810 AMAQI
19th Jul 2026811 AMAQI
19th Jul 20262112 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026213 PMAQI
19th Jul 2026234 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026278 PMAQI
19th Jul 2026279 PMAQI
19th Jul 20262510 PMAQI
19th Jul 20263411 PMAQI
20th Jul 20264212 AMAQI
20th Jul 2026361 AMAQI
20th Jul 2026402 AMAQI
20th Jul 2026333 AMAQI
29°C26/33°C
20th Jul 2026274 AMAQI
20th Jul 2026305 AMAQI
20th Jul 2026326 AMAQI
20th Jul 2026257 AMAQI
20th Jul 2026238 AMAQI
20th Jul 2026239 AMAQI
20th Jul 20262710 AMAQI
20th Jul 20262511 AMAQI
20th Jul 20262512 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026212 PMAQI
20th Jul 2026333 PMAQI
20th Jul 2026424 PMAQI
20th Jul 2026365 PMAQI
20th Jul 2026276 PMAQI
20th Jul 2026257 PMAQI
20th Jul 2026278 PMAQI
20th Jul 2026259 PMAQI
20th Jul 20262710 PMAQI
20th Jul 20263211 PMAQI
21st Jul 20262912 AMAQI
21st Jul 2026281 AMAQI
21st Jul 2026282 AMAQI
21st Jul 2026303 AMAQI
33°C28/38°C
21st Jul 2026364 AMAQI
21st Jul 2026425 AMAQI
21st Jul 2026406 AMAQI
21st Jul 2026347 AMAQI
21st Jul 2026318 AMAQI
21st Jul 2026299 AMAQI
21st Jul 20263610 AMAQI
21st Jul 20263811 AMAQI
21st Jul 2026511 PMAQI
21st Jul 2026502 PMAQI
21st Jul 2026423 PMAQI
21st Jul 2026474 PMAQI
21st Jul 2026535 PMAQI
21st Jul 2026506 PMAQI
21st Jul 2026907 PMAQI
21st Jul 2026518 PMAQI
21st Jul 2026539 PMAQI
21st Jul 20264810 PMAQI
21st Jul 20265011 PMAQI
22nd Jul 20264812 AMAQI
22nd Jul 2026511 AMAQI
22nd Jul 2026522 AMAQI
22nd Jul 2026533 AMAQI
34°C30/39°C
22nd Jul 2026534 AMAQI
22nd Jul 2026505 AMAQI
22nd Jul 2026566 AMAQI
22nd Jul 2026537 AMAQI
22nd Jul 2026568 AMAQI
22nd Jul 2026539 AMAQI
22nd Jul 20265210 AMAQI
22nd Jul 20265811 AMAQI
22nd Jul 20266412 PMAQI
22nd Jul 2026651 PMAQI
22nd Jul 2026672 PMAQI
22nd Jul 2026693 PMAQI
22nd Jul 2026684 PMAQI
22nd Jul 2026715 PMAQI
22nd Jul 2026686 PMAQI
22nd Jul 2026687 PMAQI
22nd Jul 2026658 PMAQI
22nd Jul 2026669 PMAQI
22nd Jul 20266210 PMAQI
22nd Jul 20266211 PMAQI
23rd Jul 20265412 AMAQI
23rd Jul 2026521 AMAQI
23rd Jul 2026422 AMAQI
23rd Jul 2026383 AMAQI
34°C29/40°C
23rd Jul 2026424 AMAQI
23rd Jul 2026425 AMAQI
23rd Jul 2026426 AMAQI
23rd Jul 2026467 AMAQI
23rd Jul 2026488 AMAQI
23rd Jul 2026549 AMAQI
23rd Jul 20265510 AMAQI
23rd Jul 20266011 AMAQI
23rd Jul 20265912 PMAQI
23rd Jul 2026561 PMAQI
23rd Jul 2026572 PMAQI
23rd Jul 2026643 PMAQI
23rd Jul 2026674 PMAQI
23rd Jul 2026675 PMAQI
23rd Jul 2026636 PMAQI
23rd Jul 2026567 PMAQI
23rd Jul 2026508 PMAQI
23rd Jul 2026409 PMAQI
23rd Jul 20263310 PMAQI
23rd Jul 20263111 PMAQI
24th Jul 20262712 AMAQI
24th Jul 2026251 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026273 AMAQI
33°C28/39°C
24th Jul 2026274 AMAQI
24th Jul 2026255 AMAQI
24th Jul 2026276 AMAQI
24th Jul 2026277 AMAQI
24th Jul 2026278 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20262510 AMAQI
24th Jul 20263111 AMAQI
24th Jul 20263412 PMAQI
24th Jul 2026421 PMAQI
24th Jul 2026552 PMAQI
24th Jul 2026643 PMAQI
24th Jul 2026644 PMAQI
24th Jul 2026555 PMAQI
24th Jul 2026516 PMAQI
24th Jul 2026497 PMAQI
24th Jul 2026388 PMAQI
24th Jul 2026429 PMAQI
24th Jul 20263310 PMAQI
24th Jul 20262911 PMAQI
25th Jul 20263112 AMAQI
25th Jul 2026311 AMAQI
25th Jul 2026272 AMAQI
25th Jul 2026273 AMAQI
30°C27/35°C
25th Jul 2026254 AMAQI
25th Jul 2026235 AMAQI
25th Jul 2026236 AMAQI
25th Jul 2026217 AMAQI
25th Jul 2026198 AMAQI
25th Jul 2026219 AMAQI
25th Jul 20262310 AMAQI
25th Jul 20263311 AMAQI
25th Jul 20263612 PMAQI
25th Jul 2026401 PMAQI
25th Jul 2026402 PMAQI
25th Jul 2026383 PMAQI
25th Jul 2026334 PMAQI
25th Jul 2026295 PMAQI
25th Jul 2026296 PMAQI
25th Jul 2026217 PMAQI
25th Jul 2026218 PMAQI
25th Jul 2026239 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20262911 PMAQI
26th Jul 20263312 AMAQI
26th Jul 2026331 AMAQI
26th Jul 2026332 AMAQI
26th Jul 2026213 AMAQI
29°C25/36°C
26th Jul 2026294 AMAQI
26th Jul 2026365 AMAQI
26th Jul 2026386 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026259 AMAQI
26th Jul 20262710 AMAQI
26th Jul 20262111 AMAQI
26th Jul 20262912 PMAQI
26th Jul 2026291 PMAQI
26th Jul 2026332 PMAQI
26th Jul 2026333 PMAQI
26th Jul 2026254 PMAQI
26th Jul 2026215 PMAQI
26th Jul 2026216 PMAQI
26th Jul 2026237 PMAQI
26th Jul 2026218 PMAQI
26th Jul 2026239 PMAQI
26th Jul 20262110 PMAQI
26th Jul 20262311 PMAQI
27th Jul 20262112 AMAQI
27th Jul 2026231 AMAQI
27th Jul 2026272 AMAQI
27th Jul 2026293 AMAQI
29°C26/34°C
27th Jul 2026254 AMAQI
27th Jul 2026235 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026219 AMAQI
27th Jul 20262510 AMAQI
27th Jul 20262511 AMAQI
27th Jul 20262512 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026232 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026256 PMAQI
27th Jul 2026217 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262311 PMAQI
28th Jul 20262112 AMAQI
28th Jul 2026211 AMAQI
28th Jul 2026232 AMAQI
28th Jul 2026213 AMAQI
27°C24/32°C
28th Jul 2026214 AMAQI
28th Jul 2026215 AMAQI
28th Jul 2026216 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026218 AMAQI
28th Jul 2026219 AMAQI
28th Jul 20262110 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20262512 PMAQI
28th Jul 2026291 PMAQI
28th Jul 2026332 PMAQI
28th Jul 2026383 PMAQI
28th Jul 2026384 PMAQI
28th Jul 2026405 PMAQI
28th Jul 2026426 PMAQI
28th Jul 2026467 PMAQI
28th Jul 2026508 PMAQI
28th Jul 2026489 PMAQI
28th Jul 20265110 PMAQI
28th Jul 20265211 PMAQI
29th Jul 20265212 AMAQI
29th Jul 2026541 AMAQI
29th Jul 2026502 AMAQI
29th Jul 2026513 AMAQI
27°C24/32°C
29th Jul 2026464 AMAQI
29th Jul 2026485 AMAQI
29th Jul 2026486 AMAQI
29th Jul 2026467 AMAQI
29th Jul 2026428 AMAQI
29th Jul 2026389 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20263311 AMAQI
29th Jul 20263312 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026292 PMAQI
29th Jul 2026293 PMAQI
29th Jul 2026254 PMAQI
29th Jul 2026275 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026127 PMAQI
29th Jul 2026128 PMAQI
29th Jul 2026129 PMAQI
29th Jul 20261910 PMAQI
29th Jul 20261911 PMAQI
30th Jul 20262512 AMAQI
30th Jul 202681 AMAQI
30th Jul 2026252 AMAQI
30th Jul 2026213 AMAQI
30°C24/37°C
30th Jul 2026214 AMAQI
30th Jul 2026175 AMAQI
30th Jul 2026196 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026218 AMAQI
30th Jul 2026279 AMAQI
30th Jul 20262710 AMAQI
30th Jul 20262511 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026341 PMAQI
30th Jul 2026402 PMAQI
30th Jul 2026423 PMAQI
30th Jul 2026424 PMAQI
30th Jul 2026445 PMAQI
30th Jul 2026526 PMAQI
30th Jul 2026537 PMAQI
30th Jul 2026548 PMAQI
30th Jul 2026529 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20263611 PMAQI
31st Jul 20263812 AMAQI
31st Jul 2026461 AMAQI
31st Jul 2026402 AMAQI
31st Jul 2026333 AMAQI
32°C27/37°C
31st Jul 2026314 AMAQI
31st Jul 2026295 AMAQI
31st Jul 2026406 AMAQI
31st Jul 2026407 AMAQI
31st Jul 2026388 AMAQI
31st Jul 2026369 AMAQI
31st Jul 20264210 AMAQI
31st Jul 20264011 AMAQI
31st Jul 20264412 PMAQI
31st Jul 2026421 PMAQI
31st Jul 2026462 PMAQI
31st Jul 2026513 PMAQI
31st Jul 2026494 PMAQI
31st Jul 2026425 PMAQI
31st Jul 2026526 PMAQI
31st Jul 2026537 PMAQI
31st Jul 2026548 PMAQI
31st Jul 2026549 PMAQI
31st Jul 20264610 PMAQI
31st Jul 20264211 PMAQI
1st Aug 20264012 AMAQI
1st Aug 2026421 AMAQI
1st Aug 2026462 AMAQI
1st Aug 2026363 AMAQI
32°C28/37°C
1st Aug 2026404 AMAQI
1st Aug 2026405 AMAQI
1st Aug 2026426 AMAQI
1st Aug 2026407 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026429 AMAQI
1st Aug 20264210 AMAQI
1st Aug 20263811 AMAQI
1st Aug 20264412 PMAQI
1st Aug 2026441 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026403 PMAQI
1st Aug 2026424 PMAQI
1st Aug 2026425 PMAQI
1st Aug 2026426 PMAQI
1st Aug 2026427 PMAQI
1st Aug 2026468 PMAQI
1st Aug 2026449 PMAQI
1st Aug 20264610 PMAQI
1st Aug 20267811 PMAQI
2nd Aug 20264412 AMAQI
2nd Aug 2026501 AMAQI
2nd Aug 2026602 AMAQI
2nd Aug 2026543 AMAQI
32°C27/38°C
2nd Aug 2026524 AMAQI
2nd Aug 2026515 AMAQI
2nd Aug 2026466 AMAQI
2nd Aug 2026427 AMAQI
2nd Aug 2026488 AMAQI
2nd Aug 2026509 AMAQI
2nd Aug 20265310 AMAQI
2nd Aug 20264611 AMAQI
2nd Aug 20265012 PMAQI
2nd Aug 2026421 PMAQI
2nd Aug 2026382 PMAQI
2nd Aug 2026363 PMAQI
2nd Aug 2026334 PMAQI
2nd Aug 2026255 PMAQI
2nd Aug 2026236 PMAQI
2nd Aug 2026217 PMAQI
2nd Aug 2026258 PMAQI
2nd Aug 2026349 PMAQI
2nd Aug 20264010 PMAQI
2nd Aug 20262911 PMAQI
3rd Aug 20263112 AMAQI
3rd Aug 2026291 AMAQI
3rd Aug 2026272 AMAQI
3rd Aug 2026313 AMAQI
30°C25/35°C
3rd Aug 2026234 AMAQI
3rd Aug 2026255 AMAQI
3rd Aug 2026276 AMAQI
3rd Aug 2026257 AMAQI
3rd Aug 2026258 AMAQI
3rd Aug 2026299 AMAQI
3rd Aug 20262910 AMAQI
3rd Aug 20262311 AMAQI
3rd Aug 20262112 PMAQI
3rd Aug 2026251 PMAQI
3rd Aug 2026212 PMAQI
3rd Aug 2026213 PMAQI
3rd Aug 2026214 PMAQI
3rd Aug 2026235 PMAQI
3rd Aug 2026216 PMAQI
3rd Aug 2026217 PMAQI
3rd Aug 2026238 PMAQI
3rd Aug 2026259 PMAQI
3rd Aug 20262310 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20262112 AMAQI
4th Aug 2026211 AMAQI
4th Aug 2026232 AMAQI
4th Aug 2026233 AMAQI
25°C24/26°C
4th Aug 2026214 AMAQI
4th Aug 2026215 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026237 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262510 AMAQI
4th Aug 20262711 AMAQI
4th Aug 20262712 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026252 PMAQI
4th Aug 2026273 PMAQI
4th Aug 2026274 PMAQI
4th Aug 2026295 PMAQI
4th Aug 2026296 PMAQI
4th Aug 2026297 PMAQI
4th Aug 2026298 PMAQI
4th Aug 2026299 PMAQI
4th Aug 20262910 PMAQI
4th Aug 20262711 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026291 AMAQI
5th Aug 2026332 AMAQI
5th Aug 2026293 AMAQI
26°C22/31°C
5th Aug 2026294 AMAQI
5th Aug 2026295 AMAQI
5th Aug 2026296 AMAQI
5th Aug 2026297 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026299 AMAQI
5th Aug 20262710 AMAQI
5th Aug 20262711 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 2026296 PMAQI
5th Aug 2026277 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026219 PMAQI
5th Aug 20262310 PMAQI
5th Aug 20262311 PMAQI
6th Aug 20262312 AMAQI
6th Aug 2026251 AMAQI
6th Aug 2026212 AMAQI
6th Aug 2026213 AMAQI
27°C23/32°C
6th Aug 2026214 AMAQI
6th Aug 2026235 AMAQI
6th Aug 2026216 AMAQI
6th Aug 2026237 AMAQI
6th Aug 2026238 AMAQI
6th Aug 2026219 AMAQI
6th Aug 20262110 AMAQI
6th Aug 20262111 AMAQI
6th Aug 20262112 PMAQI
6th Aug 2026211 PMAQI
6th Aug 2026212 PMAQI
6th Aug 2026213 PMAQI
6th Aug 2026214 PMAQI
6th Aug 2026215 PMAQI
6th Aug 2026236 PMAQI
6th Aug 2026237 PMAQI
6th Aug 2026218 PMAQI
6th Aug 2026219 PMAQI
6th Aug 20262110 PMAQI
6th Aug 20262111 PMAQI
7th Aug 20262312 AMAQI
7th Aug 2026231 AMAQI
7th Aug 2026212 AMAQI
7th Aug 2026213 AMAQI
30°C26/34°C
7th Aug 2026214 AMAQI
7th Aug 2026215 AMAQI
7th Aug 2026216 AMAQI
7th Aug 2026217 AMAQI
7th Aug 2026218 AMAQI
7th Aug 2026219 AMAQI
7th Aug 20262110 AMAQI
7th Aug 20262311 AMAQI
7th Aug 20264012 PMAQI
7th Aug 2026491 PMAQI
7th Aug 2026232 PMAQI
7th Aug 2026213 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026215 PMAQI
7th Aug 2026236 PMAQI
7th Aug 2026217 PMAQI
7th Aug 2026218 PMAQI
7th Aug 2026219 PMAQI
7th Aug 20262110 PMAQI
7th Aug 20262111 PMAQI
8th Aug 20262112 AMAQI
8th Aug 2026231 AMAQI
8th Aug 2026212 AMAQI
8th Aug 2026233 AMAQI
31°C27/36°C
8th Aug 2026234 AMAQI
8th Aug 2026255 AMAQI
8th Aug 2026236 AMAQI
8th Aug 2026237 AMAQI
8th Aug 2026258 AMAQI
8th Aug 2026239 AMAQI
8th Aug 20262110 AMAQI
8th Aug 20262511 AMAQI
8th Aug 20262712 PMAQI
8th Aug 2026231 PMAQI
8th Aug 2026232 PMAQI
8th Aug 2026213 PMAQI
8th Aug 2026214 PMAQI
8th Aug 2026235 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026217 PMAQI
8th Aug 2026218 PMAQI
8th Aug 2026219 PMAQI
8th Aug 20262110 PMAQI
8th Aug 20262311 PMAQI
9th Aug 20263112 AMAQI
9th Aug 2026231 AMAQI
9th Aug 2026212 AMAQI
9th Aug 2026213 AMAQI
31°C27/36°C
9th Aug 2026254 AMAQI
4 AM9th Aug 2026255 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026258 AMAQI
9th Aug 2026259 AMAQI
9th Aug 20262510 AMAQI
9th Aug 20262311 AMAQI
11 AM9th Aug 20262312 PMAQI
9th Aug 2026211 PMAQI
9th Aug 2026212 PMAQI
9th Aug 2026213 PMAQI
9th Aug 2026214 PMAQI
9th Aug 2026255 PMAQI
9th Aug 2026236 PMAQI
6 PM9th Aug 2026277 PMAQI
9th Aug 2026318 PMAQI
9th Aug 2026319 PMAQI
9th Aug 20262910 PMAQI
9th Aug 20262711 PMAQI
11 PM3 AM
30°C27/34°C
Day time
Avg. Highest Time
2 PM - 6 PM
35AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
4 AM
29AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 6 PM (Avg. 35), while the lowest AQI was between 4 AM to 4 AM (Avg. 29).
Night time
Avg. Highest Time
7 PM - 11 PM
34AQI
5 hours / Day
150 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 11 PM (Avg. 34), while the lowest AQI was between 3 AM to 3 AM (Avg. 30).
2026 Days Vs Air Quality
Sekiyama, Hasuda, Saitama, Japan
2026
87%
192
13%
29
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Good
192 DaysModerate
29 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 221 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
Sekiyama, Hasuda, 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
21AQI (US)
21AQI (US)
2nd January 2026
18AQI (US)
18AQI (US)
3rd January 2026
22AQI (US)
22AQI (US)
4th January 2026
25AQI (US)
25AQI (US)
5th January 2026
44AQI (US)
44AQI (US)
6th January 2026
29AQI (US)
29AQI (US)
7th January 2026
35AQI (US)
35AQI (US)
8th January 2026
39AQI (US)
39AQI (US)
9th January 2026
18AQI (US)
18AQI (US)
10th January 2026
37AQI (US)
37AQI (US)
11th January 2026
30AQI (US)
30AQI (US)
12th January 2026
17AQI (US)
17AQI (US)
13th January 2026
36AQI (US)
36AQI (US)
14th January 2026
15AQI (US)
15AQI (US)
15th January 2026
30AQI (US)
30AQI (US)
16th January 2026
53AQI (US)
53AQI (US)
17th January 2026
44AQI (US)
44AQI (US)
18th January 2026
26AQI (US)
26AQI (US)
19th January 2026
48AQI (US)
48AQI (US)
20th January 2026
48AQI (US)
48AQI (US)
21st January 2026
13AQI (US)
13AQI (US)
22nd January 2026
19AQI (US)
19AQI (US)
23rd January 2026
23AQI (US)
23AQI (US)
24th January 2026
31AQI (US)
31AQI (US)
25th January 2026
47AQI (US)
47AQI (US)
26th January 2026
15AQI (US)
15AQI (US)
27th January 2026
19AQI (US)
19AQI (US)
28th January 2026
20AQI (US)
20AQI (US)
29th January 2026
20AQI (US)
20AQI (US)
30th January 2026
39AQI (US)
39AQI (US)
31st January 2026
20AQI (US)
20AQI (US)
1st February 2026
22AQI (US)
22AQI (US)
2nd February 2026
25AQI (US)
25AQI (US)
3rd February 2026
28AQI (US)
28AQI (US)
4th February 2026
42AQI (US)
42AQI (US)
5th February 2026
63AQI (US)
63AQI (US)
6th February 2026
53AQI (US)
53AQI (US)
7th February 2026
15AQI (US)
15AQI (US)
8th February 2026
14AQI (US)
14AQI (US)
9th February 2026
34AQI (US)
34AQI (US)
10th February 2026
42AQI (US)
42AQI (US)
11th February 2026
53AQI (US)
53AQI (US)
12th February 2026
26AQI (US)
26AQI (US)
13th February 2026
45AQI (US)
45AQI (US)
14th February 2026
58AQI (US)
58AQI (US)
15th February 2026
74AQI (US)
74AQI (US)
16th February 2026
49AQI (US)
49AQI (US)
17th February 2026
22AQI (US)
22AQI (US)
18th February 2026
40AQI (US)
40AQI (US)
19th February 2026
34AQI (US)
34AQI (US)
20th February 2026
26AQI (US)
26AQI (US)
21st February 2026
37AQI (US)
37AQI (US)
22nd February 2026
44AQI (US)
44AQI (US)
23rd February 2026
43AQI (US)
43AQI (US)
24th February 2026
45AQI (US)
45AQI (US)
25th February 2026
37AQI (US)
37AQI (US)
26th February 2026
12AQI (US)
12AQI (US)
27th February 2026
31AQI (US)
31AQI (US)
28th February 2026
40AQI (US)
40AQI (US)
1st March 2026
37AQI (US)
37AQI (US)
2nd March 2026
62AQI (US)
62AQI (US)
3rd March 2026
43AQI (US)
43AQI (US)
4th March 2026
50AQI (US)
50AQI (US)
5th March 2026
56AQI (US)
56AQI (US)
6th March 2026
51AQI (US)
51AQI (US)
7th March 2026
45AQI (US)
45AQI (US)
8th March 2026
36AQI (US)
36AQI (US)
9th March 2026
47AQI (US)
47AQI (US)
10th March 2026
57AQI (US)
57AQI (US)
11th March 2026
58AQI (US)
58AQI (US)
12th March 2026
64AQI (US)
64AQI (US)
13th March 2026
37AQI (US)
37AQI (US)
14th March 2026
29AQI (US)
29AQI (US)
15th March 2026
13AQI (US)
13AQI (US)
16th March 2026
30AQI (US)
30AQI (US)
17th March 2026
50AQI (US)
50AQI (US)
18th March 2026
53AQI (US)
53AQI (US)
19th March 2026
44AQI (US)
44AQI (US)
20th March 2026
35AQI (US)
35AQI (US)
21st March 2026
57AQI (US)
57AQI (US)
22nd March 2026
54AQI (US)
54AQI (US)
23rd March 2026
50AQI (US)
50AQI (US)
24th March 2026
46AQI (US)
46AQI (US)
25th March 2026
66AQI (US)
66AQI (US)
26th March 2026
31AQI (US)
31AQI (US)
27th March 2026
25AQI (US)
25AQI (US)
28th March 2026
49AQI (US)
49AQI (US)
29th March 2026
55AQI (US)
55AQI (US)
30th March 2026
55AQI (US)
55AQI (US)
31st March 2026
24AQI (US)
24AQI (US)
1st April 2026
20AQI (US)
20AQI (US)
2nd April 2026
25AQI (US)
25AQI (US)
3rd April 2026
47AQI (US)
47AQI (US)
4th April 2026
47AQI (US)
47AQI (US)
5th April 2026
38AQI (US)
38AQI (US)
6th April 2026
25AQI (US)
25AQI (US)
7th April 2026
41AQI (US)
41AQI (US)
8th April 2026
26AQI (US)
26AQI (US)
9th April 2026
32AQI (US)
32AQI (US)
10th April 2026
48AQI (US)
48AQI (US)
11th April 2026
39AQI (US)
39AQI (US)
12th April 2026
31AQI (US)
31AQI (US)
13th April 2026
35AQI (US)
35AQI (US)
14th April 2026
40AQI (US)
40AQI (US)
15th April 2026
39AQI (US)
39AQI (US)
16th April 2026
34AQI (US)
34AQI (US)
17th April 2026
36AQI (US)
36AQI (US)
18th April 2026
32AQI (US)
32AQI (US)
19th April 2026
33AQI (US)
33AQI (US)
20th April 2026
34AQI (US)
34AQI (US)
21st April 2026
41AQI (US)
41AQI (US)
22nd April 2026
33AQI (US)
33AQI (US)
23rd April 2026
13AQI (US)
13AQI (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
38AQI (US)
38AQI (US)
1st May 2026
48AQI (US)
48AQI (US)
2nd May 2026
50AQI (US)
50AQI (US)
3rd May 2026
45AQI (US)
45AQI (US)
4th May 2026
29AQI (US)
29AQI (US)
5th May 2026
22AQI (US)
22AQI (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
30AQI (US)
30AQI (US)
10th May 2026
24AQI (US)
24AQI (US)
11th May 2026
24AQI (US)
24AQI (US)
12th May 2026
36AQI (US)
36AQI (US)
13th May 2026
37AQI (US)
37AQI (US)
14th May 2026
33AQI (US)
33AQI (US)
15th May 2026
35AQI (US)
35AQI (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
61AQI (US)
61AQI (US)
21st May 2026
59AQI (US)
59AQI (US)
22nd May 2026
60AQI (US)
60AQI (US)
23rd May 2026
54AQI (US)
54AQI (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
25AQI (US)
25AQI (US)
28th May 2026
26AQI (US)
26AQI (US)
29th May 2026
25AQI (US)
25AQI (US)
30th May 2026
28AQI (US)
28AQI (US)
31st May 2026
32AQI (US)
32AQI (US)
1st June 2026
29AQI (US)
29AQI (US)
2nd June 2026
29AQI (US)
29AQI (US)
3rd June 2026
26AQI (US)
26AQI (US)
4th June 2026
23AQI (US)
23AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
20AQI (US)
20AQI (US)
7th June 2026
21AQI (US)
21AQI (US)
8th June 2026
21AQI (US)
21AQI (US)
9th June 2026
22AQI (US)
22AQI (US)
10th June 2026
23AQI (US)
23AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
24AQI (US)
24AQI (US)
13th June 2026
28AQI (US)
28AQI (US)
14th June 2026
50AQI (US)
50AQI (US)
15th June 2026
17AQI (US)
17AQI (US)
16th June 2026
19AQI (US)
19AQI (US)
17th June 2026
23AQI (US)
23AQI (US)
18th June 2026
25AQI (US)
25AQI (US)
19th June 2026
27AQI (US)
27AQI (US)
20th June 2026
23AQI (US)
23AQI (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
27AQI (US)
27AQI (US)
26th June 2026
30AQI (US)
30AQI (US)
27th June 2026
27AQI (US)
27AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
27AQI (US)
27AQI (US)
30th June 2026
24AQI (US)
24AQI (US)
1st July 2026
26AQI (US)
26AQI (US)
2nd July 2026
17AQI (US)
17AQI (US)
3rd July 2026
16AQI (US)
16AQI (US)
4th July 2026
41AQI (US)
41AQI (US)
5th July 2026
25AQI (US)
25AQI (US)
6th July 2026
32AQI (US)
32AQI (US)
7th July 2026
26AQI (US)
26AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
23AQI (US)
23AQI (US)
10th July 2026
26AQI (US)
26AQI (US)
11th July 2026
27AQI (US)
27AQI (US)
12th July 2026
28AQI (US)
28AQI (US)
13th July 2026
30AQI (US)
30AQI (US)
14th July 2026
29AQI (US)
29AQI (US)
15th July 2026
29AQI (US)
29AQI (US)
16th July 2026
42AQI (US)
42AQI (US)
17th July 2026
44AQI (US)
44AQI (US)
18th July 2026
27AQI (US)
27AQI (US)
19th July 2026
20AQI (US)
20AQI (US)
20th July 2026
30AQI (US)
30AQI (US)
21st July 2026
43AQI (US)
43AQI (US)
22nd July 2026
60AQI (US)
60AQI (US)
23rd July 2026
51AQI (US)
51AQI (US)
24th July 2026
36AQI (US)
36AQI (US)
25th July 2026
28AQI (US)
28AQI (US)
26th July 2026
27AQI (US)
27AQI (US)
27th July 2026
24AQI (US)
24AQI (US)
28th July 2026
31AQI (US)
31AQI (US)
29th July 2026
34AQI (US)
34AQI (US)
30th July 2026
32AQI (US)
32AQI (US)
31st July 2026
43AQI (US)
43AQI (US)
1st August 2026
43AQI (US)
43AQI (US)
2nd August 2026
41AQI (US)
41AQI (US)
3rd August 2026
25AQI (US)
25AQI (US)
4th August 2026
25AQI (US)
25AQI (US)
5th August 2026
28AQI (US)
28AQI (US)
6th August 2026
22AQI (US)
22AQI (US)
7th August 2026
24AQI (US)
24AQI (US)
8th August 2026
23AQI (US)
23AQI (US)
9th August 2026
25AQI (US)
25AQI (US)
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
29AQI (US)
38AQI (US)
45AQI (US)
36AQI (US)
41AQI (US)
25AQI (US)
31AQI (US)
28AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
30
1
23
5
19
12
29
1
23
8
30
29
2
9
192
29
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202543AQI (US)
28
3
27
1
22
9
22
8
29
2
27
3
23
8
22
9
29
1
14
17
16
14
18
13
277
88
Highest AQI (US) recorded in
October51AQI (US)
Lowest AQI (US) recorded in
September36AQI (US)
202347AQI (US)
15
15
15
13
13
18
17
13
20
11
18
12
16
15
27
4
27
3
21
10
16
13
16
15
221
142
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202244AQI (US)
25
6
16
5
16
15
15
15
23
8
19
11
14
7
1
25
3
21
10
18
12
26
5
219
97
Highest AQI (US) recorded in
November50AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202142AQI (US)
20
11
20
8
20
10
1
27
3
22
9
25
5
28
3
26
5
27
3
27
4
19
11
20
11
281
83
1
Highest AQI (US) recorded in
January46AQI (US)
Lowest AQI (US) recorded in
August36AQI (US)
202040AQI (US)
7
6
15
6
16
2
27
3
29
2
21
10
18
1
25
6
15
15
19
12
192
63
Highest AQI (US) recorded in
November51AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
47AQI (US)Least Polluted Year Recorded
2026(Avg.)
35AQI (US)Sekiyama's annual 2026 AQI (US) (35) shows an average percentage change of -18.7% (improved AQI (US)) compared to previous years: 2020 (40), 2021 (42), 2022 (44), 2023 (47), 2025 (43).
