Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Hidaka, 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+

July Air Quality Analysis

Hidaka, Saitama, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Jul 2024
78AQI
Lowest AQI recorded on
3rd Jul 2026
14AQI

Same Day Analysis (31st July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 51 of Moderate air quality on the same day.

Day & Night AQI Trend: 30th Jul - 31st Jul 2026

Hidaka, Saitama, Japan

AQI
Day
Night
.

4 AM30th Jul 2026

6 PM

3 AM31st Jul 2026

Day time
Avg. Highest Time
6PM30th Jul

51AQI

Avg. Lowest Time
9AM30th Jul

21AQI

Night time
Avg. Highest Time
2AM31st Jul

59AQI

Avg. Lowest Time
1AM31st Jul

21AQI

In the last 24 hours,

Hidaka's AQI reached its highest point of 59 at 2 AM during the Night, while the lowest point, 21, was recorded at 1 AM during the Night between 30th Jul and 31st Jul 2026.

Day & Night AQI Trend : Jul 2026

Hidaka, Saitama, Japan

Jul
02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st
Day
Night
2nd Jul 2026284 AMAQI
2nd Jul 2026265 AMAQI
2nd Jul 2026266 AMAQI
2nd Jul 2026237 AMAQI
2nd Jul 2026258 AMAQI
2nd Jul 2026279 AMAQI
2nd Jul 20262510 AMAQI
2nd Jul 20262011 AMAQI
2nd Jul 20261812 PMAQI
2nd Jul 2026191 PMAQI
2nd Jul 2026192 PMAQI
2nd Jul 2026203 PMAQI
2nd Jul 2026194 PMAQI
2nd Jul 2026225 PMAQI
2nd Jul 2026226 PMAQI
2nd Jul 2026167 PMAQI
2nd Jul 202688 PMAQI
2nd Jul 202689 PMAQI
2nd Jul 2026810 PMAQI
2nd Jul 2026811 PMAQI
3rd Jul 2026812 AMAQI
3rd Jul 2026101 AMAQI
3rd Jul 2026122 AMAQI
3rd Jul 2026123 AMAQI

21°C20/23°C

3rd Jul 2026124 AMAQI
3rd Jul 2026105 AMAQI
3rd Jul 2026106 AMAQI
3rd Jul 2026127 AMAQI
3rd Jul 202688 AMAQI
3rd Jul 202689 AMAQI
3rd Jul 2026810 AMAQI
3rd Jul 2026811 AMAQI
3rd Jul 2026812 PMAQI
3rd Jul 202661 PMAQI
3rd Jul 202642 PMAQI
3rd Jul 2026123 PMAQI
3rd Jul 2026174 PMAQI
3rd Jul 2026235 PMAQI
3rd Jul 2026256 PMAQI
3rd Jul 2026267 PMAQI
3rd Jul 2026268 PMAQI
3rd Jul 2026269 PMAQI
3rd Jul 20262610 PMAQI
3rd Jul 20262611 PMAQI
4th Jul 20262912 AMAQI
4th Jul 2026271 AMAQI
4th Jul 2026282 AMAQI
4th Jul 2026283 AMAQI

22°C20/24°C

4th Jul 2026264 AMAQI
4th Jul 2026285 AMAQI
4th Jul 2026266 AMAQI
4th Jul 2026267 AMAQI
4th Jul 2026298 AMAQI
4th Jul 2026309 AMAQI
4th Jul 20262810 AMAQI
4th Jul 20263211 AMAQI
4th Jul 20263212 PMAQI
4th Jul 2026321 PMAQI
4th Jul 2026762 PMAQI
4th Jul 2026663 PMAQI
4th Jul 2026714 PMAQI
4th Jul 2026655 PMAQI
4th Jul 2026666 PMAQI
4th Jul 2026567 PMAQI
4th Jul 2026148 PMAQI
4th Jul 2026179 PMAQI
4th Jul 20261210 PMAQI
4th Jul 2026811 PMAQI
5th Jul 20261212 AMAQI
5th Jul 2026121 AMAQI
5th Jul 202682 AMAQI
5th Jul 2026103 AMAQI

23°C21/25°C

5th Jul 2026124 AMAQI
5th Jul 2026215 AMAQI
5th Jul 2026176 AMAQI
5th Jul 2026127 AMAQI
5th Jul 2026178 AMAQI
5th Jul 2026259 AMAQI
5th Jul 20261710 AMAQI
5th Jul 2026611 AMAQI
5th Jul 2026612 PMAQI
5th Jul 202681 PMAQI
5th Jul 2026122 PMAQI
5th Jul 2026123 PMAQI
5th Jul 2026174 PMAQI
5th Jul 2026125 PMAQI
5th Jul 2026126 PMAQI
5th Jul 2026177 PMAQI
5th Jul 2026198 PMAQI
5th Jul 2026259 PMAQI
5th Jul 20262710 PMAQI
5th Jul 20262711 PMAQI
6th Jul 20262312 AMAQI
6th Jul 2026231 AMAQI
6th Jul 2026272 AMAQI
6th Jul 2026253 AMAQI

23°C21/27°C

6th Jul 2026214 AMAQI
6th Jul 2026235 AMAQI
6th Jul 2026256 AMAQI
6th Jul 2026237 AMAQI
6th Jul 2026258 AMAQI
6th Jul 2026259 AMAQI
6th Jul 20262510 AMAQI
6th Jul 20262511 AMAQI
6th Jul 20263112 PMAQI
6th Jul 2026331 PMAQI
6th Jul 2026332 PMAQI
6th Jul 2026443 PMAQI
6th Jul 2026444 PMAQI
6th Jul 2026465 PMAQI
6th Jul 2026206 PMAQI
6th Jul 2026257 PMAQI
6th Jul 2026278 PMAQI
6th Jul 2026289 PMAQI
6th Jul 20262810 PMAQI
6th Jul 20262911 PMAQI
7th Jul 20262712 AMAQI
7th Jul 2026301 AMAQI
7th Jul 2026292 AMAQI
7th Jul 2026293 AMAQI

21°C20/22°C

7th Jul 2026264 AMAQI
7th Jul 2026285 AMAQI
7th Jul 2026286 AMAQI
7th Jul 2026267 AMAQI
7th Jul 2026248 AMAQI
7th Jul 2026249 AMAQI
7th Jul 20262410 AMAQI
7th Jul 20262211 AMAQI
7th Jul 20262212 PMAQI
7th Jul 2026221 PMAQI
7th Jul 2026262 PMAQI
7th Jul 2026303 PMAQI
7th Jul 2026324 PMAQI
7th Jul 2026365 PMAQI
7th Jul 2026326 PMAQI
7th Jul 2026287 PMAQI
7th Jul 2026288 PMAQI
7th Jul 2026279 PMAQI
7th Jul 20262610 PMAQI
7th Jul 20262611 PMAQI
8th Jul 20263012 AMAQI
8th Jul 2026311 AMAQI
8th Jul 2026322 AMAQI
8th Jul 2026293 AMAQI

23°C20/28°C

8th Jul 2026254 AMAQI
8th Jul 2026305 AMAQI
8th Jul 2026286 AMAQI
8th Jul 2026317 AMAQI
8th Jul 2026288 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262410 AMAQI
8th Jul 20262411 AMAQI
8th Jul 20262512 PMAQI
8th Jul 2026221 PMAQI
8th Jul 2026262 PMAQI
8th Jul 2026283 PMAQI
8th Jul 2026304 PMAQI
8th Jul 2026245 PMAQI
8th Jul 2026226 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026218 PMAQI
8th Jul 2026249 PMAQI
8th Jul 20262210 PMAQI
8th Jul 20262611 PMAQI
9th Jul 20262812 AMAQI
9th Jul 2026281 AMAQI
9th Jul 2026282 AMAQI
9th Jul 2026283 AMAQI

25°C21/30°C

9th Jul 2026264 AMAQI
9th Jul 2026285 AMAQI
9th Jul 2026276 AMAQI
9th Jul 2026287 AMAQI
9th Jul 2026298 AMAQI
9th Jul 2026249 AMAQI
9th Jul 20262210 AMAQI
9th Jul 20262311 AMAQI
9th Jul 20262412 PMAQI
9th Jul 2026221 PMAQI
9th Jul 2026262 PMAQI
9th Jul 2026273 PMAQI
9th Jul 2026254 PMAQI
9th Jul 2026265 PMAQI
9th Jul 2026266 PMAQI
9th Jul 2026267 PMAQI
9th Jul 2026238 PMAQI
9th Jul 2026249 PMAQI
9th Jul 20262410 PMAQI
9th Jul 20262611 PMAQI
10th Jul 20262412 AMAQI
10th Jul 2026261 AMAQI
10th Jul 2026242 AMAQI
10th Jul 2026263 AMAQI

26°C22/31°C

10th Jul 2026254 AMAQI
10th Jul 2026265 AMAQI
10th Jul 2026286 AMAQI
10th Jul 2026277 AMAQI
10th Jul 2026308 AMAQI
10th Jul 2026309 AMAQI
10th Jul 20262710 AMAQI
10th Jul 20262711 AMAQI
10th Jul 20262612 PMAQI
10th Jul 2026241 PMAQI
10th Jul 2026232 PMAQI
10th Jul 2026223 PMAQI
10th Jul 2026244 PMAQI
10th Jul 2026305 PMAQI
10th Jul 2026276 PMAQI
10th Jul 2026287 PMAQI
10th Jul 2026298 PMAQI
10th Jul 2026289 PMAQI
10th Jul 20263110 PMAQI
10th Jul 20263011 PMAQI
11th Jul 20263212 AMAQI
11th Jul 2026321 AMAQI
11th Jul 2026302 AMAQI
11th Jul 2026323 AMAQI

27°C23/33°C

11th Jul 2026254 AMAQI
11th Jul 2026315 AMAQI
11th Jul 2026306 AMAQI
11th Jul 2026327 AMAQI
11th Jul 2026308 AMAQI
11th Jul 2026339 AMAQI
11th Jul 20263110 AMAQI
11th Jul 20263011 AMAQI
11th Jul 20262712 PMAQI
11th Jul 2026251 PMAQI
11th Jul 2026262 PMAQI
11th Jul 2026243 PMAQI
11th Jul 2026264 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026278 PMAQI
11th Jul 2026309 PMAQI
11th Jul 20262910 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20262912 AMAQI
12th Jul 2026301 AMAQI
12th Jul 2026302 AMAQI
12th Jul 2026293 AMAQI

28°C24/32°C

12th Jul 2026284 AMAQI
12th Jul 2026285 AMAQI
12th Jul 2026306 AMAQI
12th Jul 2026307 AMAQI
12th Jul 2026318 AMAQI
12th Jul 2026289 AMAQI
12th Jul 20262810 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262412 PMAQI
12th Jul 2026221 PMAQI
12th Jul 2026222 PMAQI
12th Jul 2026243 PMAQI
12th Jul 2026244 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 20263211 PMAQI
13th Jul 20263112 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026303 AMAQI

26°C24/29°C

13th Jul 2026284 AMAQI
13th Jul 2026285 AMAQI
13th Jul 2026266 AMAQI
13th Jul 2026267 AMAQI
13th Jul 2026278 AMAQI
13th Jul 2026309 AMAQI
13th Jul 20262810 AMAQI
13th Jul 20262611 AMAQI
13th Jul 20262612 PMAQI
13th Jul 2026221 PMAQI
13th Jul 2026232 PMAQI
13th Jul 2026243 PMAQI
13th Jul 2026274 PMAQI
13th Jul 2026315 PMAQI
13th Jul 2026326 PMAQI
13th Jul 2026347 PMAQI
13th Jul 2026348 PMAQI
13th Jul 2026329 PMAQI
13th Jul 20263310 PMAQI
13th Jul 20263611 PMAQI
14th Jul 20263612 AMAQI
14th Jul 2026341 AMAQI
14th Jul 2026342 AMAQI
14th Jul 2026323 AMAQI

26°C25/28°C

14th Jul 2026264 AMAQI
14th Jul 2026325 AMAQI
14th Jul 2026326 AMAQI
14th Jul 2026287 AMAQI
14th Jul 2026298 AMAQI
14th Jul 2026359 AMAQI
14th Jul 20263410 AMAQI
14th Jul 20262811 AMAQI
14th Jul 20262612 PMAQI
14th Jul 2026241 PMAQI
14th Jul 2026222 PMAQI
14th Jul 2026223 PMAQI
14th Jul 2026264 PMAQI
14th Jul 2026325 PMAQI
14th Jul 2026306 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026318 PMAQI
14th Jul 2026329 PMAQI
14th Jul 20263210 PMAQI
14th Jul 20263411 PMAQI
15th Jul 20263412 AMAQI
15th Jul 2026341 AMAQI
15th Jul 2026342 AMAQI
15th Jul 2026363 AMAQI

29°C24/34°C

15th Jul 2026294 AMAQI
15th Jul 2026335 AMAQI
15th Jul 2026276 AMAQI
15th Jul 2026337 AMAQI
15th Jul 2026348 AMAQI
15th Jul 2026319 AMAQI
15th Jul 20263410 AMAQI
15th Jul 20263111 AMAQI
15th Jul 20262812 PMAQI
15th Jul 2026271 PMAQI
15th Jul 2026262 PMAQI
15th Jul 2026333 PMAQI
15th Jul 2026384 PMAQI
15th Jul 2026285 PMAQI
15th Jul 2026316 PMAQI
15th Jul 2026257 PMAQI
15th Jul 2026308 PMAQI
15th Jul 2026289 PMAQI
15th Jul 20263210 PMAQI
15th Jul 20263011 PMAQI
16th Jul 20262812 AMAQI
16th Jul 2026311 AMAQI
16th Jul 2026362 AMAQI
16th Jul 2026323 AMAQI

30°C26/36°C

16th Jul 2026284 AMAQI
16th Jul 2026325 AMAQI
16th Jul 2026326 AMAQI
16th Jul 2026327 AMAQI
16th Jul 2026348 AMAQI
16th Jul 2026349 AMAQI
16th Jul 20263210 AMAQI
16th Jul 20263211 AMAQI
16th Jul 20263212 PMAQI
16th Jul 2026281 PMAQI
16th Jul 2026282 PMAQI
16th Jul 2026283 PMAQI
16th Jul 2026304 PMAQI
16th Jul 2026625 PMAQI
16th Jul 2026586 PMAQI
16th Jul 2026587 PMAQI
16th Jul 2026568 PMAQI
16th Jul 2026609 PMAQI
16th Jul 20265210 PMAQI
16th Jul 20263811 PMAQI
17th Jul 20262912 AMAQI
17th Jul 2026271 AMAQI
17th Jul 2026252 AMAQI
17th Jul 2026273 AMAQI

30°C26/36°C

17th Jul 2026244 AMAQI
17th Jul 2026245 AMAQI
17th Jul 2026256 AMAQI
17th Jul 2026247 AMAQI
17th Jul 2026248 AMAQI
17th Jul 2026229 AMAQI
17th Jul 20263310 AMAQI
17th Jul 20264611 AMAQI
17th Jul 20265212 PMAQI
17th Jul 2026401 PMAQI
17th Jul 2026302 PMAQI
17th Jul 2026313 PMAQI
17th Jul 2026524 PMAQI
17th Jul 2026405 PMAQI
17th Jul 2026406 PMAQI
17th Jul 2026447 PMAQI
17th Jul 2026488 PMAQI
17th Jul 2026499 PMAQI
17th Jul 20265210 PMAQI
17th Jul 20265211 PMAQI
18th Jul 20264812 AMAQI
18th Jul 2026441 AMAQI
18th Jul 2026442 AMAQI
18th Jul 2026443 AMAQI

28°C25/30°C

18th Jul 2026404 AMAQI
18th Jul 2026365 AMAQI
18th Jul 2026336 AMAQI
18th Jul 2026367 AMAQI
18th Jul 2026298 AMAQI
18th Jul 2026279 AMAQI
18th Jul 20262110 AMAQI
18th Jul 20262111 AMAQI
18th Jul 20262512 PMAQI
18th Jul 2026121 PMAQI
18th Jul 2026172 PMAQI
18th Jul 2026213 PMAQI
18th Jul 2026174 PMAQI
18th Jul 2026125 PMAQI
18th Jul 2026126 PMAQI
18th Jul 2026227 PMAQI
18th Jul 2026388 PMAQI
18th Jul 2026429 PMAQI
18th Jul 20264410 PMAQI
18th Jul 20262911 PMAQI
19th Jul 20263312 AMAQI
19th Jul 2026331 AMAQI
19th Jul 2026312 AMAQI
19th Jul 2026253 AMAQI

27°C25/29°C

19th Jul 2026254 AMAQI
19th Jul 2026145 AMAQI
19th Jul 202686 AMAQI
19th Jul 2026107 AMAQI
19th Jul 2026148 AMAQI
19th Jul 2026149 AMAQI
19th Jul 20261010 AMAQI
19th Jul 20261411 AMAQI
19th Jul 20261412 PMAQI
19th Jul 2026171 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026234 PMAQI
19th Jul 2026235 PMAQI
19th Jul 2026236 PMAQI
19th Jul 2026327 PMAQI
19th Jul 2026238 PMAQI
19th Jul 2026329 PMAQI
19th Jul 20264010 PMAQI
19th Jul 20263811 PMAQI
20th Jul 20264212 AMAQI
20th Jul 2026421 AMAQI
20th Jul 2026442 AMAQI
20th Jul 2026333 AMAQI

28°C24/33°C

20th Jul 2026324 AMAQI
20th Jul 2026275 AMAQI
20th Jul 2026256 AMAQI
20th Jul 2026237 AMAQI
20th Jul 2026218 AMAQI
20th Jul 2026219 AMAQI
20th Jul 20262310 AMAQI
20th Jul 20262911 AMAQI
20th Jul 20262912 PMAQI
20th Jul 2026211 PMAQI
20th Jul 2026232 PMAQI
20th Jul 2026253 PMAQI
20th Jul 2026254 PMAQI
20th Jul 2026255 PMAQI
20th Jul 2026316 PMAQI
20th Jul 2026297 PMAQI
20th Jul 2026278 PMAQI
20th Jul 2026279 PMAQI
20th Jul 20262910 PMAQI
20th Jul 20262711 PMAQI
21st Jul 20262912 AMAQI
21st Jul 2026271 AMAQI
21st Jul 2026292 AMAQI
21st Jul 2026293 AMAQI

31°C26/37°C

21st Jul 2026294 AMAQI
21st Jul 2026425 AMAQI
21st Jul 2026536 AMAQI
21st Jul 2026547 AMAQI
21st Jul 2026538 AMAQI
21st Jul 2026539 AMAQI
21st Jul 20265210 AMAQI
21st Jul 20265411 AMAQI
21st Jul 2026531 PMAQI
21st Jul 2026522 PMAQI
21st Jul 2026553 PMAQI
21st Jul 2026544 PMAQI
21st Jul 2026555 PMAQI
21st Jul 2026566 PMAQI
21st Jul 2026957 PMAQI
21st Jul 2026558 PMAQI
21st Jul 2026559 PMAQI
21st Jul 20265310 PMAQI
21st Jul 20265411 PMAQI
22nd Jul 20265712 AMAQI
22nd Jul 2026581 AMAQI
22nd Jul 2026582 AMAQI
22nd Jul 2026543 AMAQI

32°C27/38°C

22nd Jul 2026544 AMAQI
22nd Jul 2026625 AMAQI
22nd Jul 2026596 AMAQI
22nd Jul 2026607 AMAQI
22nd Jul 2026678 AMAQI
22nd Jul 2026589 AMAQI
22nd Jul 20266010 AMAQI
22nd Jul 20266211 AMAQI
22nd Jul 20266712 PMAQI
22nd Jul 2026651 PMAQI
22nd Jul 2026622 PMAQI
22nd Jul 2026653 PMAQI
22nd Jul 2026594 PMAQI
22nd Jul 2026645 PMAQI
22nd Jul 2026636 PMAQI
22nd Jul 2026647 PMAQI
22nd Jul 2026678 PMAQI
22nd Jul 2026659 PMAQI
22nd Jul 20266310 PMAQI
22nd Jul 20266811 PMAQI
23rd Jul 20266212 AMAQI
23rd Jul 2026571 AMAQI
23rd Jul 2026462 AMAQI
23rd Jul 2026423 AMAQI

32°C27/37°C

23rd Jul 2026484 AMAQI
23rd Jul 2026475 AMAQI
23rd Jul 2026496 AMAQI
23rd Jul 2026537 AMAQI
23rd Jul 2026548 AMAQI
23rd Jul 2026609 AMAQI
23rd Jul 20266210 AMAQI
23rd Jul 20265711 AMAQI
23rd Jul 20265412 PMAQI
23rd Jul 2026511 PMAQI
23rd Jul 2026462 PMAQI
23rd Jul 2026483 PMAQI
23rd Jul 2026544 PMAQI
23rd Jul 2026635 PMAQI
23rd Jul 2026636 PMAQI
23rd Jul 2026647 PMAQI
23rd Jul 2026598 PMAQI
23rd Jul 2026539 PMAQI
23rd Jul 20264210 PMAQI
23rd Jul 20263811 PMAQI
24th Jul 20263612 AMAQI
24th Jul 2026331 AMAQI
24th Jul 2026312 AMAQI
24th Jul 2026293 AMAQI

31°C27/37°C

24th Jul 2026294 AMAQI
24th Jul 2026295 AMAQI
24th Jul 2026296 AMAQI
24th Jul 2026277 AMAQI
24th Jul 2026278 AMAQI
24th Jul 2026279 AMAQI
24th Jul 20262710 AMAQI
24th Jul 20263111 AMAQI
24th Jul 20264012 PMAQI
24th Jul 2026481 PMAQI
24th Jul 2026562 PMAQI
24th Jul 2026623 PMAQI
24th Jul 2026664 PMAQI
24th Jul 2026755 PMAQI
24th Jul 2026796 PMAQI
24th Jul 2026567 PMAQI
24th Jul 2026528 PMAQI
24th Jul 2026589 PMAQI
24th Jul 20265210 PMAQI
24th Jul 20265711 PMAQI
25th Jul 20264912 AMAQI
25th Jul 2026461 AMAQI
25th Jul 2026462 AMAQI
25th Jul 2026463 AMAQI

29°C26/33°C

25th Jul 2026424 AMAQI
25th Jul 2026365 AMAQI
25th Jul 2026386 AMAQI
25th Jul 2026407 AMAQI
25th Jul 2026408 AMAQI
25th Jul 2026429 AMAQI
25th Jul 20264610 AMAQI
25th Jul 20264811 AMAQI
25th Jul 20265012 PMAQI
25th Jul 2026461 PMAQI
25th Jul 2026442 PMAQI
25th Jul 2026423 PMAQI
25th Jul 2026384 PMAQI
25th Jul 2026315 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026337 PMAQI
25th Jul 2026298 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262110 PMAQI
25th Jul 20262111 PMAQI
26th Jul 2026812 AMAQI
26th Jul 202681 AMAQI
26th Jul 202672 AMAQI
26th Jul 202683 AMAQI

29°C25/35°C

26th Jul 202684 AMAQI
26th Jul 2026125 AMAQI
26th Jul 2026146 AMAQI
26th Jul 2026177 AMAQI
26th Jul 2026148 AMAQI
26th Jul 2026179 AMAQI
26th Jul 20261410 AMAQI
26th Jul 20262111 AMAQI
26th Jul 20262312 PMAQI
26th Jul 2026291 PMAQI
26th Jul 2026402 PMAQI
26th Jul 2026333 PMAQI
26th Jul 2026234 PMAQI
26th Jul 2026125 PMAQI
26th Jul 2026256 PMAQI
26th Jul 2026217 PMAQI
26th Jul 2026238 PMAQI
26th Jul 2026239 PMAQI
26th Jul 20262110 PMAQI
26th Jul 20262111 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026251 AMAQI
27th Jul 2026252 AMAQI
27th Jul 2026253 AMAQI

27°C25/31°C

27th Jul 2026214 AMAQI
27th Jul 2026235 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20262910 AMAQI
27th Jul 20262111 AMAQI
27th Jul 20262112 PMAQI
27th Jul 2026211 PMAQI
27th Jul 2026232 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026254 PMAQI
27th Jul 2026425 PMAQI
27th Jul 2026486 PMAQI
27th Jul 2026427 PMAQI
27th Jul 2026308 PMAQI
27th Jul 2026349 PMAQI
27th Jul 20263610 PMAQI
27th Jul 20263611 PMAQI
28th Jul 20263612 AMAQI
28th Jul 2026321 AMAQI
28th Jul 2026232 AMAQI
28th Jul 2026343 AMAQI

26°C23/31°C

28th Jul 2026274 AMAQI
28th Jul 2026275 AMAQI
28th Jul 2026406 AMAQI
28th Jul 2026327 AMAQI
28th Jul 2026328 AMAQI
28th Jul 2026389 AMAQI
28th Jul 20263310 AMAQI
28th Jul 20264411 AMAQI
28th Jul 20263612 PMAQI
28th Jul 2026461 PMAQI
28th Jul 2026212 PMAQI
28th Jul 2026533 PMAQI
28th Jul 2026254 PMAQI
28th Jul 2026535 PMAQI
28th Jul 2026216 PMAQI
28th Jul 2026217 PMAQI
28th Jul 2026368 PMAQI
28th Jul 2026559 PMAQI
28th Jul 20264110 PMAQI
28th Jul 20265311 PMAQI
29th Jul 20264312 AMAQI
29th Jul 2026331 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026253 AMAQI

25°C23/29°C

29th Jul 2026254 AMAQI
29th Jul 2026365 AMAQI
29th Jul 2026446 AMAQI
29th Jul 2026337 AMAQI
29th Jul 2026298 AMAQI
29th Jul 2026219 AMAQI
29th Jul 20263110 AMAQI
29th Jul 20264611 AMAQI
29th Jul 20264012 PMAQI
29th Jul 2026401 PMAQI
29th Jul 2026292 PMAQI
29th Jul 2026293 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026385 PMAQI
29th Jul 2026296 PMAQI
29th Jul 2026297 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20262910 PMAQI
29th Jul 20263811 PMAQI
30th Jul 20262712 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026402 AMAQI
30th Jul 2026443 AMAQI

28°C22/35°C

30th Jul 2026364 AMAQI
30th Jul 2026365 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026407 AMAQI
30th Jul 2026368 AMAQI
30th Jul 2026219 AMAQI
30th Jul 20264710 AMAQI
30th Jul 20263811 AMAQI
30th Jul 20263812 PMAQI
30th Jul 2026461 PMAQI
30th Jul 2026382 PMAQI
30th Jul 2026403 PMAQI
30th Jul 2026424 PMAQI
30th Jul 2026385 PMAQI
30th Jul 2026516 PMAQI
30th Jul 2026547 PMAQI
30th Jul 2026488 PMAQI
30th Jul 2026489 PMAQI
30th Jul 20265310 PMAQI
30th Jul 20263811 PMAQI
31st Jul 20265212 AMAQI
31st Jul 2026211 AMAQI
31st Jul 2026592 AMAQI
31st Jul 2026593 AMAQI

30°C25/35°C

31st Jul 2026564 AMAQI
4 AM
31st Jul 2026515 AMAQI
31st Jul 2026546 AMAQI
31st Jul 2026607 AMAQI
31st Jul 2026638 AMAQI
31st Jul 2026569 AMAQI
31st Jul 20264810 AMAQI
31st Jul 20264811 AMAQI
11 AM
31st Jul 20265312 PMAQI
31st Jul 2026421 PMAQI
31st Jul 2026382 PMAQI
31st Jul 2026443 PMAQI
31st Jul 2026424 PMAQI
31st Jul 2026545 PMAQI
31st Jul 2026446 PMAQI
6 PM
31st Jul 2026527 PMAQI
31st Jul 2026548 PMAQI
31st Jul 2026589 PMAQI
31st Jul 20265310 PMAQI
31st Jul 20265311 PMAQI
11 PM
3 AM

30°C25/35°C

Day time
Avg. Highest Time
5 PM - 6 PM

37AQI

2 hours / Day
60 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 5 PM to 6 PM (Avg. 37), while the lowest AQI was between 4 AM to 4 AM (Avg. 29).
Night time
Avg. Highest Time
7 PM

37AQI

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

31AQI

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. 37), while the lowest AQI was between 1 AM to 1 AM (Avg. 31).

2026 Days Vs Air Quality

Hidaka, Saitama, Japan

2026

84%

179

16%

33

Total number of days with different AQI categories in last 212 days in 2026 (153 days remaining)

Good
179 Days
Moderate
33 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 84%

Health Risk Level:

Low

In 2026, 84% of 212 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

Hidaka, 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
25AQI (US)
2nd January 2026
20AQI (US)
3rd January 2026
21AQI (US)
4th January 2026
25AQI (US)
5th January 2026
34AQI (US)
6th January 2026
23AQI (US)
7th January 2026
36AQI (US)
8th January 2026
32AQI (US)
9th January 2026
23AQI (US)
10th January 2026
40AQI (US)
11th January 2026
31AQI (US)
12th January 2026
12AQI (US)
13th January 2026
24AQI (US)
14th January 2026
22AQI (US)
15th January 2026
33AQI (US)
16th January 2026
48AQI (US)
17th January 2026
53AQI (US)
18th January 2026
34AQI (US)
19th January 2026
59AQI (US)
20th January 2026
38AQI (US)
21st January 2026
17AQI (US)
22nd January 2026
24AQI (US)
23rd January 2026
39AQI (US)
24th January 2026
38AQI (US)
25th January 2026
43AQI (US)
26th January 2026
32AQI (US)
27th January 2026
37AQI (US)
28th January 2026
27AQI (US)
29th January 2026
26AQI (US)
30th January 2026
36AQI (US)
31st January 2026
37AQI (US)
1st February 2026
37AQI (US)
2nd February 2026
47AQI (US)
3rd February 2026
32AQI (US)
4th February 2026
37AQI (US)
5th February 2026
47AQI (US)
6th February 2026
44AQI (US)
7th February 2026
14AQI (US)
8th February 2026
18AQI (US)
9th February 2026
40AQI (US)
10th February 2026
20AQI (US)
11th February 2026
28AQI (US)
12th February 2026
26AQI (US)
13th February 2026
45AQI (US)
14th February 2026
66AQI (US)
15th February 2026
61AQI (US)
16th February 2026
37AQI (US)
17th February 2026
23AQI (US)
18th February 2026
33AQI (US)
19th February 2026
32AQI (US)
20th February 2026
31AQI (US)
21st February 2026
39AQI (US)
22nd February 2026
40AQI (US)
23rd February 2026
43AQI (US)
24th February 2026
37AQI (US)
25th February 2026
38AQI (US)
26th February 2026
10AQI (US)
27th February 2026
28AQI (US)
28th February 2026
48AQI (US)
1st March 2026
48AQI (US)
2nd March 2026
83AQI (US)
3rd March 2026
48AQI (US)
4th March 2026
56AQI (US)
5th March 2026
60AQI (US)
6th March 2026
53AQI (US)
7th March 2026
49AQI (US)
8th March 2026
47AQI (US)
9th March 2026
54AQI (US)
10th March 2026
60AQI (US)
11th March 2026
60AQI (US)
12th March 2026
72AQI (US)
13th March 2026
44AQI (US)
14th March 2026
38AQI (US)
15th March 2026
17AQI (US)
16th March 2026
32AQI (US)
17th March 2026
57AQI (US)
18th March 2026
59AQI (US)
19th March 2026
35AQI (US)
20th March 2026
34AQI (US)
21st March 2026
52AQI (US)
22nd March 2026
54AQI (US)
23rd March 2026
57AQI (US)
24th March 2026
49AQI (US)
25th March 2026
72AQI (US)
26th March 2026
22AQI (US)
27th March 2026
20AQI (US)
28th March 2026
49AQI (US)
29th March 2026
57AQI (US)
30th March 2026
59AQI (US)
31st March 2026
34AQI (US)
1st April 2026
19AQI (US)
2nd April 2026
24AQI (US)
3rd April 2026
46AQI (US)
4th April 2026
46AQI (US)
5th April 2026
38AQI (US)
6th April 2026
25AQI (US)
7th April 2026
40AQI (US)
8th April 2026
25AQI (US)
9th April 2026
33AQI (US)
10th April 2026
49AQI (US)
11th April 2026
37AQI (US)
12th April 2026
38AQI (US)
13th April 2026
37AQI (US)
14th April 2026
48AQI (US)
15th April 2026
46AQI (US)
16th April 2026
36AQI (US)
17th April 2026
41AQI (US)
18th April 2026
36AQI (US)
19th April 2026
40AQI (US)
20th April 2026
39AQI (US)
21st April 2026
42AQI (US)
22nd April 2026
47AQI (US)
23rd April 2026
38AQI (US)
24th April 2026
32AQI (US)
25th April 2026
46AQI (US)
26th April 2026
51AQI (US)
27th April 2026
49AQI (US)
28th April 2026
43AQI (US)
29th April 2026
40AQI (US)
30th April 2026
40AQI (US)
1st May 2026
48AQI (US)
2nd May 2026
51AQI (US)
3rd May 2026
45AQI (US)
4th May 2026
28AQI (US)
5th May 2026
23AQI (US)
6th May 2026
35AQI (US)
7th May 2026
35AQI (US)
8th May 2026
28AQI (US)
9th May 2026
27AQI (US)
10th May 2026
35AQI (US)
11th May 2026
37AQI (US)
12th May 2026
43AQI (US)
13th May 2026
46AQI (US)
14th May 2026
42AQI (US)
15th May 2026
42AQI (US)
16th May 2026
86AQI (US)
17th May 2026
68AQI (US)
18th May 2026
54AQI (US)
19th May 2026
49AQI (US)
20th May 2026
61AQI (US)
21st May 2026
60AQI (US)
22nd May 2026
61AQI (US)
23rd May 2026
53AQI (US)
24th May 2026
58AQI (US)
25th May 2026
47AQI (US)
26th May 2026
40AQI (US)
27th May 2026
25AQI (US)
28th May 2026
26AQI (US)
29th May 2026
25AQI (US)
30th May 2026
25AQI (US)
31st May 2026
28AQI (US)
1st June 2026
32AQI (US)
2nd June 2026
34AQI (US)
3rd June 2026
11AQI (US)
4th June 2026
20AQI (US)
5th June 2026
22AQI (US)
6th June 2026
22AQI (US)
7th June 2026
22AQI (US)
8th June 2026
21AQI (US)
9th June 2026
23AQI (US)
10th June 2026
22AQI (US)
11th June 2026
25AQI (US)
12th June 2026
25AQI (US)
13th June 2026
28AQI (US)
14th June 2026
25AQI (US)
15th June 2026
20AQI (US)
16th June 2026
27AQI (US)
17th June 2026
25AQI (US)
18th June 2026
25AQI (US)
19th June 2026
30AQI (US)
20th June 2026
23AQI (US)
21st June 2026
19AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
22AQI (US)
25th June 2026
26AQI (US)
26th June 2026
28AQI (US)
27th June 2026
27AQI (US)
28th June 2026
28AQI (US)
29th June 2026
27AQI (US)
30th June 2026
26AQI (US)
1st July 2026
27AQI (US)
2nd July 2026
21AQI (US)
3rd July 2026
14AQI (US)
4th July 2026
36AQI (US)
5th July 2026
15AQI (US)
6th July 2026
28AQI (US)
7th July 2026
27AQI (US)
8th July 2026
26AQI (US)
9th July 2026
26AQI (US)
10th July 2026
27AQI (US)
11th July 2026
29AQI (US)
12th July 2026
28AQI (US)
13th July 2026
29AQI (US)
14th July 2026
30AQI (US)
15th July 2026
31AQI (US)
16th July 2026
38AQI (US)
17th July 2026
36AQI (US)
18th July 2026
30AQI (US)
19th July 2026
22AQI (US)
20th July 2026
28AQI (US)
21st July 2026
50AQI (US)
22nd July 2026
62AQI (US)
23rd July 2026
53AQI (US)
24th July 2026
44AQI (US)
25th July 2026
38AQI (US)
26th July 2026
18AQI (US)
27th July 2026
28AQI (US)
28th July 2026
36AQI (US)
29th July 2026
32AQI (US)
30th July 2026
39AQI (US)
31st July 2026
51AQI (US)
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

32AQI (US)

36AQI (US)

49AQI (US)

39AQI (US)

43AQI (US)

24AQI (US)

32AQI (US)

No. of days

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

202637AQI (US)

29
2
26
2
15
16
29
1
22
9
30
28
3
179
33

Highest AQI (US) recorded in

March

49AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202541AQI (US)

30
1
27
1
23
8
23
7
27
4
27
3
23
8
23
8
30
13
18
18
12
19
12
283
82

Highest AQI (US) recorded in

October

48AQI (US)

Lowest AQI (US) recorded in

January

34AQI (US)

202439AQI (US)

15
4
25
6
13
17
26
5
20
10
17
14
29
2
27
3
30
1
27
3
31
264
61

Highest AQI (US) recorded in

April

53AQI (US)

Lowest AQI (US) recorded in

December

30AQI (US)

202341AQI (US)

28
2
22
6
24
7
19
11
23
8
19
11
18
13
26
28
2
30
1
21
8
25
6
283
75

Highest AQI (US) recorded in

April

50AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202239AQI (US)

28
1
19
2
21
10
19
11
24
7
16
14
17
7
1
27
1
28
3
25
5
31
256
61

Highest AQI (US) recorded in

June

48AQI (US)

Lowest AQI (US) recorded in

December

28AQI (US)

202137AQI (US)

27
4
21
7
21
9
1
24
6
23
8
25
5
29
2
26
5
28
2
29
2
28
2
30
1
311
53
1

Highest AQI (US) recorded in

March

45AQI (US)

Lowest AQI (US) recorded in

December

33AQI (US)

202037AQI (US)

10
3
17
4
17
1
22
8
29
2
13
18
19
28
3
21
9
28
3
204
51

Highest AQI (US) recorded in

August

53AQI (US)

Lowest AQI (US) recorded in

July

25AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
41AQI (US)
Least Polluted Year Recorded
2020(Avg.)
37AQI (US)

Hidaka's annual 2026 AQI (US) (37) shows an average percentage change of -4.9% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (37), 2022 (39), 2023 (41), 2024 (39), 2025 (41).