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+
October Air Quality Analysis
Hidaka, Saitama, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Oct 2025
64AQILowest AQI recorded on
7th Oct 2022
15AQISame Day Analysis (12th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 47 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 12th Oct - 13th Oct 2025
Hidaka, Saitama, Japan
AQI
Day
Night
.
5 AM12th Oct 2025
5 PM
4 AM13th Oct 2025
Day time
Avg. Highest Time
5PM12th Oct
65AQI
Avg. Lowest Time
7AM12th Oct
24AQI
Night time
Avg. Highest Time
6PM12th Oct
63AQI
Avg. Lowest Time
4AM13th Oct
51AQI
In the last 24 hours,
Hidaka's AQI reached its highest point of 65 at 5 PM during the Day, while the lowest point, 24, was recorded at 7 AM during the Day between 12th Oct and 13th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hidaka, Saitama, Japan
SepOct
13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
13th Sep 2025345 AMAQI
13th Sep 2025336 AMAQI
13th Sep 2025337 AMAQI
13th Sep 2025338 AMAQI
13th Sep 2025189 AMAQI
13th Sep 20251610 AMAQI
13th Sep 20252211 AMAQI
13th Sep 20252412 PMAQI
13th Sep 2025221 PMAQI
13th Sep 2025202 PMAQI
13th Sep 2025203 PMAQI
13th Sep 2025244 PMAQI
13th Sep 2025205 PMAQI
13th Sep 2025166 PMAQI
13th Sep 2025187 PMAQI
13th Sep 2025288 PMAQI
13th Sep 2025289 PMAQI
13th Sep 20252810 PMAQI
13th Sep 20253311 PMAQI
14th Sep 20252912 AMAQI
14th Sep 2025341 AMAQI
14th Sep 2025352 AMAQI
14th Sep 2025343 AMAQI
14th Sep 2025334 AMAQI
25°C23/29°C
14th Sep 2025335 AMAQI
14th Sep 2025326 AMAQI
14th Sep 2025347 AMAQI
14th Sep 2025358 AMAQI
14th Sep 2025249 AMAQI
14th Sep 20252610 AMAQI
14th Sep 20252711 AMAQI
14th Sep 20253012 PMAQI
14th Sep 2025461 PMAQI
14th Sep 2025342 PMAQI
14th Sep 2025323 PMAQI
14th Sep 2025354 PMAQI
14th Sep 2025375 PMAQI
14th Sep 2025436 PMAQI
14th Sep 2025507 PMAQI
14th Sep 2025448 PMAQI
14th Sep 2025409 PMAQI
14th Sep 20254110 PMAQI
14th Sep 20254211 PMAQI
15th Sep 20253912 AMAQI
15th Sep 2025361 AMAQI
15th Sep 2025352 AMAQI
15th Sep 2025343 AMAQI
15th Sep 2025344 AMAQI
27°C23/32°C
15th Sep 2025345 AMAQI
15th Sep 2025366 AMAQI
15th Sep 2025357 AMAQI
15th Sep 2025368 AMAQI
15th Sep 2025409 AMAQI
15th Sep 20253910 AMAQI
15th Sep 20253611 AMAQI
15th Sep 20253512 PMAQI
15th Sep 2025311 PMAQI
15th Sep 2025302 PMAQI
15th Sep 2025253 PMAQI
15th Sep 2025314 PMAQI
15th Sep 2025345 PMAQI
15th Sep 2025416 PMAQI
15th Sep 2025427 PMAQI
15th Sep 2025408 PMAQI
15th Sep 2025369 PMAQI
15th Sep 20253410 PMAQI
15th Sep 20253511 PMAQI
16th Sep 20253212 AMAQI
16th Sep 2025361 AMAQI
16th Sep 2025352 AMAQI
16th Sep 2025363 AMAQI
16th Sep 2025354 AMAQI
28°C25/31°C
16th Sep 2025355 AMAQI
16th Sep 2025356 AMAQI
16th Sep 2025367 AMAQI
16th Sep 2025368 AMAQI
16th Sep 2025489 AMAQI
16th Sep 20255410 AMAQI
16th Sep 20255311 AMAQI
16th Sep 20255512 PMAQI
16th Sep 2025561 PMAQI
16th Sep 2025582 PMAQI
16th Sep 2025583 PMAQI
16th Sep 2025524 PMAQI
16th Sep 2025425 PMAQI
16th Sep 2025376 PMAQI
16th Sep 2025347 PMAQI
16th Sep 2025338 PMAQI
16th Sep 2025329 PMAQI
16th Sep 20253210 PMAQI
16th Sep 20253411 PMAQI
17th Sep 20253412 AMAQI
17th Sep 2025341 AMAQI
17th Sep 2025342 AMAQI
17th Sep 2025343 AMAQI
17th Sep 2025384 AMAQI
28°C25/33°C
17th Sep 2025405 AMAQI
17th Sep 2025406 AMAQI
17th Sep 2025407 AMAQI
17th Sep 2025408 AMAQI
17th Sep 2025509 AMAQI
17th Sep 20255110 AMAQI
17th Sep 20255411 AMAQI
17th Sep 20255512 PMAQI
17th Sep 2025561 PMAQI
17th Sep 2025602 PMAQI
17th Sep 2025553 PMAQI
17th Sep 2025524 PMAQI
17th Sep 2025565 PMAQI
17th Sep 2025486 PMAQI
17th Sep 2025537 PMAQI
17th Sep 2025508 PMAQI
17th Sep 2025549 PMAQI
17th Sep 20255310 PMAQI
17th Sep 20255411 PMAQI
18th Sep 20255512 AMAQI
18th Sep 2025481 AMAQI
18th Sep 2025352 AMAQI
18th Sep 2025363 AMAQI
18th Sep 2025384 AMAQI
29°C25/35°C
18th Sep 2025425 AMAQI
18th Sep 2025426 AMAQI
18th Sep 2025427 AMAQI
18th Sep 2025428 AMAQI
18th Sep 2025549 AMAQI
18th Sep 20255910 AMAQI
18th Sep 20256611 AMAQI
18th Sep 20256612 PMAQI
18th Sep 2025641 PMAQI
18th Sep 2025612 PMAQI
18th Sep 2025633 PMAQI
18th Sep 2025454 PMAQI
18th Sep 2025235 PMAQI
18th Sep 2025216 PMAQI
18th Sep 2025207 PMAQI
18th Sep 2025248 PMAQI
18th Sep 2025349 PMAQI
18th Sep 20253410 PMAQI
18th Sep 20253211 PMAQI
19th Sep 20253212 AMAQI
19th Sep 2025371 AMAQI
19th Sep 2025442 AMAQI
19th Sep 2025443 AMAQI
19th Sep 2025464 AMAQI
28°C23/36°C
19th Sep 2025515 AMAQI
19th Sep 2025516 AMAQI
19th Sep 2025517 AMAQI
19th Sep 2025528 AMAQI
19th Sep 2025249 AMAQI
19th Sep 20251410 AMAQI
19th Sep 20251411 AMAQI
19th Sep 20251712 PMAQI
19th Sep 2025181 PMAQI
19th Sep 2025182 PMAQI
19th Sep 2025233 PMAQI
19th Sep 2025264 PMAQI
19th Sep 2025285 PMAQI
19th Sep 2025266 PMAQI
19th Sep 2025287 PMAQI
19th Sep 2025308 PMAQI
19th Sep 2025379 PMAQI
19th Sep 20253610 PMAQI
19th Sep 20253711 PMAQI
20th Sep 20253612 AMAQI
20th Sep 2025401 AMAQI
20th Sep 2025462 AMAQI
20th Sep 2025463 AMAQI
20th Sep 2025444 AMAQI
21°C20/22°C
20th Sep 2025385 AMAQI
20th Sep 2025386 AMAQI
20th Sep 2025387 AMAQI
20th Sep 2025388 AMAQI
20th Sep 2025209 AMAQI
20th Sep 20251510 AMAQI
20th Sep 20252311 AMAQI
20th Sep 20253412 PMAQI
20th Sep 2025301 PMAQI
20th Sep 2025242 PMAQI
20th Sep 2025273 PMAQI
20th Sep 2025274 PMAQI
20th Sep 2025295 PMAQI
20th Sep 2025276 PMAQI
20th Sep 2025287 PMAQI
20th Sep 2025358 PMAQI
20th Sep 2025369 PMAQI
20th Sep 20253410 PMAQI
20th Sep 20253311 PMAQI
21st Sep 20253412 AMAQI
21st Sep 2025371 AMAQI
21st Sep 2025402 AMAQI
21st Sep 2025413 AMAQI
21st Sep 2025394 AMAQI
22°C21/23°C
21st Sep 2025375 AMAQI
21st Sep 2025366 AMAQI
21st Sep 2025377 AMAQI
21st Sep 2025378 AMAQI
21st Sep 2025209 AMAQI
21st Sep 20251310 AMAQI
21st Sep 20251211 AMAQI
21st Sep 20251312 PMAQI
21st Sep 2025131 PMAQI
21st Sep 2025142 PMAQI
21st Sep 2025163 PMAQI
21st Sep 2025154 PMAQI
21st Sep 2025165 PMAQI
21st Sep 2025166 PMAQI
21st Sep 2025157 PMAQI
21st Sep 2025218 PMAQI
21st Sep 2025279 PMAQI
21st Sep 20252810 PMAQI
21st Sep 20252811 PMAQI
22nd Sep 20252912 AMAQI
22nd Sep 2025331 AMAQI
22nd Sep 2025372 AMAQI
22nd Sep 2025373 AMAQI
22nd Sep 2025364 AMAQI
24°C20/30°C
22nd Sep 2025325 AMAQI
22nd Sep 2025336 AMAQI
22nd Sep 2025337 AMAQI
22nd Sep 2025338 AMAQI
22nd Sep 2025219 AMAQI
22nd Sep 20251810 AMAQI
22nd Sep 20251811 AMAQI
22nd Sep 20252112 PMAQI
22nd Sep 2025201 PMAQI
22nd Sep 2025232 PMAQI
22nd Sep 2025223 PMAQI
22nd Sep 2025264 PMAQI
22nd Sep 2025255 PMAQI
22nd Sep 2025296 PMAQI
22nd Sep 2025287 PMAQI
22nd Sep 2025288 PMAQI
22nd Sep 2025289 PMAQI
22nd Sep 20252810 PMAQI
22nd Sep 20252811 PMAQI
23rd Sep 20252912 AMAQI
23rd Sep 2025321 AMAQI
23rd Sep 2025342 AMAQI
23rd Sep 2025343 AMAQI
23rd Sep 2025344 AMAQI
22°C19/25°C
23rd Sep 2025325 AMAQI
23rd Sep 2025316 AMAQI
23rd Sep 2025327 AMAQI
23rd Sep 2025318 AMAQI
23rd Sep 2025209 AMAQI
23rd Sep 20252010 AMAQI
23rd Sep 20252211 AMAQI
23rd Sep 20252412 PMAQI
23rd Sep 2025261 PMAQI
23rd Sep 2025272 PMAQI
23rd Sep 2025273 PMAQI
23rd Sep 2025264 PMAQI
23rd Sep 2025285 PMAQI
23rd Sep 2025286 PMAQI
23rd Sep 2025337 PMAQI
23rd Sep 2025308 PMAQI
23rd Sep 2025319 PMAQI
23rd Sep 20253210 PMAQI
23rd Sep 20253211 PMAQI
24th Sep 20252812 AMAQI
24th Sep 2025301 AMAQI
24th Sep 2025312 AMAQI
24th Sep 2025313 AMAQI
24th Sep 2025304 AMAQI
22°C19/25°C
24th Sep 2025285 AMAQI
24th Sep 2025296 AMAQI
24th Sep 2025297 AMAQI
24th Sep 2025298 AMAQI
24th Sep 2025239 AMAQI
24th Sep 20252410 AMAQI
24th Sep 20251911 AMAQI
24th Sep 20252412 PMAQI
24th Sep 2025281 PMAQI
24th Sep 2025282 PMAQI
24th Sep 2025303 PMAQI
24th Sep 2025344 PMAQI
24th Sep 2025365 PMAQI
24th Sep 2025386 PMAQI
24th Sep 2025357 PMAQI
24th Sep 2025328 PMAQI
24th Sep 2025289 PMAQI
24th Sep 20252810 PMAQI
24th Sep 20252811 PMAQI
25th Sep 20252712 AMAQI
25th Sep 2025281 AMAQI
25th Sep 2025292 AMAQI
25th Sep 2025283 AMAQI
25th Sep 2025294 AMAQI
22°C19/26°C
25th Sep 2025285 AMAQI
25th Sep 2025286 AMAQI
25th Sep 2025287 AMAQI
25th Sep 2025288 AMAQI
25th Sep 2025269 AMAQI
25th Sep 20252610 AMAQI
25th Sep 20253311 AMAQI
25th Sep 20254112 PMAQI
25th Sep 2025371 PMAQI
25th Sep 2025502 PMAQI
25th Sep 2025543 PMAQI
25th Sep 2025464 PMAQI
25th Sep 2025465 PMAQI
25th Sep 2025466 PMAQI
25th Sep 2025457 PMAQI
25th Sep 2025468 PMAQI
25th Sep 2025509 PMAQI
25th Sep 20255010 PMAQI
25th Sep 20254611 PMAQI
26th Sep 20254612 AMAQI
26th Sep 2025501 AMAQI
26th Sep 2025512 AMAQI
26th Sep 2025513 AMAQI
26th Sep 2025464 AMAQI
24°C19/28°C
26th Sep 2025455 AMAQI
26th Sep 2025406 AMAQI
26th Sep 2025407 AMAQI
26th Sep 2025398 AMAQI
26th Sep 2025409 AMAQI
26th Sep 20255310 AMAQI
26th Sep 20255211 AMAQI
26th Sep 20254912 PMAQI
26th Sep 2025521 PMAQI
26th Sep 2025582 PMAQI
26th Sep 2025553 PMAQI
26th Sep 2025574 PMAQI
26th Sep 2025505 PMAQI
26th Sep 2025466 PMAQI
26th Sep 2025487 PMAQI
26th Sep 2025488 PMAQI
26th Sep 2025649 PMAQI
26th Sep 20255610 PMAQI
26th Sep 20254511 PMAQI
27th Sep 20253312 AMAQI
27th Sep 2025401 AMAQI
27th Sep 2025442 AMAQI
27th Sep 2025343 AMAQI
27th Sep 2025334 AMAQI
26°C22/31°C
27th Sep 2025335 AMAQI
27th Sep 2025336 AMAQI
27th Sep 2025427 AMAQI
27th Sep 2025448 AMAQI
27th Sep 2025359 AMAQI
27th Sep 20252510 AMAQI
27th Sep 20252911 AMAQI
27th Sep 20253112 PMAQI
27th Sep 2025341 PMAQI
27th Sep 2025332 PMAQI
27th Sep 2025383 PMAQI
27th Sep 2025404 PMAQI
27th Sep 2025445 PMAQI
27th Sep 2025436 PMAQI
27th Sep 2025407 PMAQI
27th Sep 2025398 PMAQI
27th Sep 2025529 PMAQI
27th Sep 20254010 PMAQI
27th Sep 20253911 PMAQI
28th Sep 20253912 AMAQI
28th Sep 2025391 AMAQI
28th Sep 2025382 AMAQI
28th Sep 2025393 AMAQI
28th Sep 2025394 AMAQI
24°C22/27°C
28th Sep 2025375 AMAQI
28th Sep 2025336 AMAQI
28th Sep 2025387 AMAQI
28th Sep 2025398 AMAQI
28th Sep 2025379 AMAQI
28th Sep 20253310 AMAQI
28th Sep 20254311 AMAQI
28th Sep 20254212 PMAQI
28th Sep 2025391 PMAQI
28th Sep 2025372 PMAQI
28th Sep 2025333 PMAQI
28th Sep 2025334 PMAQI
28th Sep 2025385 PMAQI
28th Sep 2025416 PMAQI
28th Sep 2025347 PMAQI
28th Sep 2025308 PMAQI
28th Sep 2025369 PMAQI
28th Sep 20253410 PMAQI
28th Sep 20252911 PMAQI
29th Sep 20252912 AMAQI
29th Sep 2025321 AMAQI
29th Sep 2025362 AMAQI
29th Sep 2025433 AMAQI
29th Sep 2025394 AMAQI
24°C21/27°C
29th Sep 2025435 AMAQI
29th Sep 2025416 AMAQI
29th Sep 2025407 AMAQI
29th Sep 2025458 AMAQI
29th Sep 2025479 AMAQI
29th Sep 20254610 AMAQI
29th Sep 20253911 AMAQI
29th Sep 20253512 PMAQI
29th Sep 2025461 PMAQI
29th Sep 2025492 PMAQI
29th Sep 2025403 PMAQI
29th Sep 2025244 PMAQI
29th Sep 2025265 PMAQI
29th Sep 2025226 PMAQI
29th Sep 2025227 PMAQI
29th Sep 2025228 PMAQI
29th Sep 2025229 PMAQI
29th Sep 20252810 PMAQI
29th Sep 20252911 PMAQI
30th Sep 20252412 AMAQI
30th Sep 2025311 AMAQI
30th Sep 2025202 AMAQI
30th Sep 2025233 AMAQI
30th Sep 2025204 AMAQI
26°C21/33°C
30th Sep 2025215 AMAQI
30th Sep 2025246 AMAQI
30th Sep 2025307 AMAQI
30th Sep 2025358 AMAQI
30th Sep 2025279 AMAQI
30th Sep 20252910 AMAQI
30th Sep 20253011 AMAQI
30th Sep 20252712 PMAQI
30th Sep 2025301 PMAQI
30th Sep 2025282 PMAQI
30th Sep 2025363 PMAQI
30th Sep 2025384 PMAQI
30th Sep 2025505 PMAQI
30th Sep 2025536 PMAQI
30th Sep 2025437 PMAQI
30th Sep 2025498 PMAQI
30th Sep 2025529 PMAQI
30th Sep 20255210 PMAQI
30th Sep 20254311 PMAQI
1st Oct 20255012 AMAQI
1st Oct 2025451 AMAQI
1st Oct 2025472 AMAQI
1st Oct 2025393 AMAQI
1st Oct 2025384 AMAQI
23°C21/26°C
1st Oct 2025425 AMAQI
1st Oct 2025396 AMAQI
1st Oct 2025477 AMAQI
1st Oct 2025438 AMAQI
1st Oct 2025459 AMAQI
1st Oct 20255210 AMAQI
1st Oct 20255211 AMAQI
1st Oct 20254612 PMAQI
1st Oct 2025341 PMAQI
1st Oct 2025222 PMAQI
1st Oct 2025223 PMAQI
1st Oct 2025224 PMAQI
1st Oct 2025225 PMAQI
1st Oct 2025226 PMAQI
1st Oct 2025227 PMAQI
1st Oct 2025368 PMAQI
1st Oct 2025379 PMAQI
1st Oct 20253210 PMAQI
1st Oct 20252711 PMAQI
2nd Oct 20252112 AMAQI
2nd Oct 2025401 AMAQI
2nd Oct 2025482 AMAQI
2nd Oct 2025473 AMAQI
2nd Oct 2025414 AMAQI
19°C19/20°C
2nd Oct 2025385 AMAQI
2nd Oct 2025366 AMAQI
2nd Oct 2025367 AMAQI
2nd Oct 2025368 AMAQI
2nd Oct 2025439 AMAQI
2nd Oct 20254010 AMAQI
2nd Oct 20254211 AMAQI
2nd Oct 20254012 PMAQI
2nd Oct 2025381 PMAQI
2nd Oct 2025392 PMAQI
2nd Oct 2025383 PMAQI
2nd Oct 2025404 PMAQI
2nd Oct 2025385 PMAQI
2nd Oct 2025476 PMAQI
2nd Oct 2025487 PMAQI
2nd Oct 2025548 PMAQI
2nd Oct 2025569 PMAQI
2nd Oct 20255710 PMAQI
2nd Oct 20256311 PMAQI
3rd Oct 20255912 AMAQI
3rd Oct 2025551 AMAQI
3rd Oct 2025482 AMAQI
3rd Oct 2025483 AMAQI
3rd Oct 2025524 AMAQI
21°C17/26°C
3rd Oct 2025515 AMAQI
3rd Oct 2025426 AMAQI
3rd Oct 2025387 AMAQI
3rd Oct 2025358 AMAQI
3rd Oct 2025509 AMAQI
3rd Oct 20255110 AMAQI
3rd Oct 20255111 AMAQI
3rd Oct 20254712 PMAQI
3rd Oct 2025371 PMAQI
3rd Oct 2025352 PMAQI
3rd Oct 2025513 PMAQI
3rd Oct 2025574 PMAQI
3rd Oct 2025555 PMAQI
3rd Oct 2025496 PMAQI
3rd Oct 2025537 PMAQI
3rd Oct 2025478 PMAQI
3rd Oct 2025659 PMAQI
3rd Oct 20256810 PMAQI
3rd Oct 20257411 PMAQI
4th Oct 20257212 AMAQI
4th Oct 2025641 AMAQI
4th Oct 2025682 AMAQI
4th Oct 2025693 AMAQI
4th Oct 2025674 AMAQI
22°C18/25°C
4th Oct 2025615 AMAQI
4th Oct 2025616 AMAQI
4th Oct 2025627 AMAQI
4th Oct 2025508 AMAQI
4th Oct 2025579 AMAQI
4th Oct 20256310 AMAQI
4th Oct 20256611 AMAQI
4th Oct 20256712 PMAQI
4th Oct 2025681 PMAQI
4th Oct 2025642 PMAQI
4th Oct 2025573 PMAQI
4th Oct 2025564 PMAQI
4th Oct 2025585 PMAQI
4th Oct 2025646 PMAQI
4th Oct 2025597 PMAQI
4th Oct 2025608 PMAQI
4th Oct 2025629 PMAQI
4th Oct 20256410 PMAQI
4th Oct 20256111 PMAQI
5th Oct 20255612 AMAQI
5th Oct 2025561 AMAQI
5th Oct 2025592 AMAQI
5th Oct 2025663 AMAQI
5th Oct 2025674 AMAQI
22°C20/24°C
5th Oct 2025665 AMAQI
5th Oct 2025596 AMAQI
5th Oct 2025587 AMAQI
5th Oct 2025538 AMAQI
5th Oct 2025579 AMAQI
5th Oct 20255310 AMAQI
5th Oct 20255511 AMAQI
5th Oct 20255512 PMAQI
5th Oct 2025541 PMAQI
5th Oct 2025362 PMAQI
5th Oct 2025333 PMAQI
5th Oct 2025534 PMAQI
5th Oct 2025555 PMAQI
5th Oct 2025556 PMAQI
5th Oct 2025547 PMAQI
5th Oct 2025548 PMAQI
5th Oct 2025579 PMAQI
5th Oct 20256110 PMAQI
5th Oct 20256411 PMAQI
6th Oct 20255812 AMAQI
6th Oct 2025621 AMAQI
6th Oct 2025592 AMAQI
6th Oct 2025583 AMAQI
6th Oct 2025564 AMAQI
23°C19/27°C
6th Oct 2025565 AMAQI
6th Oct 2025556 AMAQI
6th Oct 2025557 AMAQI
6th Oct 2025568 AMAQI
6th Oct 2025599 AMAQI
6th Oct 20256210 AMAQI
6th Oct 20256411 AMAQI
6th Oct 20256512 PMAQI
6th Oct 2025671 PMAQI
6th Oct 2025602 PMAQI
6th Oct 2025563 PMAQI
6th Oct 2025544 PMAQI
6th Oct 2025545 PMAQI
6th Oct 2025546 PMAQI
6th Oct 2025567 PMAQI
6th Oct 2025588 PMAQI
6th Oct 2025619 PMAQI
6th Oct 20256010 PMAQI
6th Oct 20255711 PMAQI
7th Oct 20255612 AMAQI
7th Oct 2025611 AMAQI
7th Oct 2025642 AMAQI
24°C19/28°C
7th Oct 2025508 PMAQI
7th Oct 2025379 PMAQI
7th Oct 20254610 PMAQI
7th Oct 20255511 PMAQI
8th Oct 20255912 AMAQI
8th Oct 2025591 AMAQI
8th Oct 2025592 AMAQI
8th Oct 2025583 AMAQI
8th Oct 2025564 AMAQI
20°C19/20°C
8th Oct 2025565 AMAQI
8th Oct 2025566 AMAQI
8th Oct 2025567 AMAQI
8th Oct 2025578 AMAQI
8th Oct 2025599 AMAQI
8th Oct 20255910 AMAQI
8th Oct 20256011 AMAQI
8th Oct 20256112 PMAQI
8th Oct 2025461 PMAQI
8th Oct 2025552 PMAQI
8th Oct 2025563 PMAQI
8th Oct 2025524 PMAQI
8th Oct 2025545 PMAQI
8th Oct 2025546 PMAQI
8th Oct 2025487 PMAQI
8th Oct 2025608 PMAQI
8th Oct 2025679 PMAQI
8th Oct 20257210 PMAQI
8th Oct 20257411 PMAQI
9th Oct 20256812 AMAQI
9th Oct 2025711 AMAQI
9th Oct 2025682 AMAQI
9th Oct 2025683 AMAQI
9th Oct 2025664 AMAQI
23°C18/28°C
9th Oct 2025695 AMAQI
9th Oct 2025686 AMAQI
9th Oct 2025707 AMAQI
9th Oct 2025658 AMAQI
9th Oct 2025619 AMAQI
9th Oct 20255710 AMAQI
9th Oct 20255111 AMAQI
9th Oct 20254912 PMAQI
9th Oct 2025481 PMAQI
9th Oct 2025302 PMAQI
9th Oct 2025403 PMAQI
9th Oct 2025384 PMAQI
9th Oct 2025405 PMAQI
9th Oct 2025526 PMAQI
9th Oct 2025567 PMAQI
9th Oct 2025588 PMAQI
9th Oct 2025469 PMAQI
9th Oct 20253710 PMAQI
9th Oct 20254211 PMAQI
10th Oct 20253612 AMAQI
10th Oct 2025421 AMAQI
10th Oct 2025552 AMAQI
10th Oct 2025543 AMAQI
10th Oct 2025514 AMAQI
20°C17/22°C
10th Oct 2025465 AMAQI
10th Oct 2025486 AMAQI
10th Oct 2025397 AMAQI
10th Oct 2025478 AMAQI
10th Oct 2025569 AMAQI
10th Oct 20255810 AMAQI
10th Oct 20255911 AMAQI
10th Oct 20255112 PMAQI
10th Oct 2025401 PMAQI
10th Oct 2025402 PMAQI
10th Oct 2025473 PMAQI
10th Oct 2025494 PMAQI
10th Oct 2025515 PMAQI
10th Oct 2025516 PMAQI
10th Oct 2025647 PMAQI
10th Oct 2025578 PMAQI
10th Oct 2025609 PMAQI
10th Oct 20256110 PMAQI
10th Oct 20256111 PMAQI
11th Oct 20254612 AMAQI
11th Oct 2025481 AMAQI
11th Oct 2025552 AMAQI
11th Oct 2025563 AMAQI
11th Oct 2025574 AMAQI
19°C17/22°C
11th Oct 2025595 AMAQI
11th Oct 2025606 AMAQI
11th Oct 2025587 AMAQI
11th Oct 2025598 AMAQI
11th Oct 2025589 AMAQI
11th Oct 20255610 AMAQI
11th Oct 20255411 AMAQI
11th Oct 20255212 PMAQI
11th Oct 2025491 PMAQI
11th Oct 2025542 PMAQI
11th Oct 2025583 PMAQI
11th Oct 2025584 PMAQI
11th Oct 2025545 PMAQI
11th Oct 2025556 PMAQI
11th Oct 2025567 PMAQI
11th Oct 2025568 PMAQI
11th Oct 2025319 PMAQI
11th Oct 20252510 PMAQI
11th Oct 20254411 PMAQI
12th Oct 20255012 AMAQI
12th Oct 2025461 AMAQI
12th Oct 2025402 AMAQI
12th Oct 2025323 AMAQI
12th Oct 2025434 AMAQI
18°C17/19°C
12th Oct 2025465 AMAQI
12th Oct 2025426 AMAQI
12th Oct 2025247 AMAQI
12th Oct 2025388 AMAQI
12th Oct 2025419 AMAQI
12th Oct 20254810 AMAQI
12th Oct 20254811 AMAQI
12th Oct 20255112 PMAQI
12th Oct 2025401 PMAQI
12th Oct 2025492 PMAQI
12th Oct 2025523 PMAQI
12th Oct 2025594 PMAQI
12th Oct 2025655 PMAQI
12th Oct 2025636 PMAQI
12th Oct 2025587 PMAQI
12th Oct 2025578 PMAQI
12th Oct 2025569 PMAQI
12th Oct 20255410 PMAQI
12th Oct 20255411 PMAQI
13th Oct 20255412 AMAQI
13th Oct 2025531 AMAQI
13th Oct 2025552 AMAQI
13th Oct 2025533 AMAQI
13th Oct 2025514 AMAQI
20°C16/25°C
13th Oct 2025555 AMAQI
5 AM13th Oct 2025546 AMAQI
13th Oct 2025547 AMAQI
13th Oct 2025578 AMAQI
13th Oct 2025569 AMAQI
13th Oct 20255410 AMAQI
13th Oct 20255511 AMAQI
11 AM13th Oct 20256112 PMAQI
13th Oct 2025631 PMAQI
13th Oct 2025582 PMAQI
13th Oct 2025553 PMAQI
13th Oct 2025564 PMAQI
13th Oct 2025555 PMAQI
5 PM13th Oct 2025556 PMAQI
13th Oct 2025537 PMAQI
13th Oct 2025538 PMAQI
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 5 PM
41AQI
13 hours / Day
390 hours / Month
Avg. Lowest Time
5 AM - 10 AM
42AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 PM (Avg. 41), while the lowest AQI was between 5 AM to 10 AM (Avg. 42).
Night time
Avg. Highest Time
1 AM - 4 AM
44AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
6 PM - 7 PM
41AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 44), while the lowest AQI was between 6 PM to 7 PM (Avg. 41).
2025 Days Vs Air Quality
Hidaka, Saitama, Japan
2025
83%
236
17%
49
Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)
Good
236 DaysModerate
49 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 83%
Health Risk Level:
Low
In 2025, 83% of 286 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 2025
AQI
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 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
29AQI
29AQI
2nd January 2025
30AQI
30AQI
3rd January 2025
25AQI
25AQI
4th January 2025
26AQI
26AQI
5th January 2025
31AQI
31AQI
6th January 2025
53AQI
53AQI
7th January 2025
27AQI
27AQI
8th January 2025
35AQI
35AQI
9th January 2025
28AQI
28AQI
10th January 2025
29AQI
29AQI
11th January 2025
25AQI
25AQI
12th January 2025
35AQI
35AQI
13th January 2025
29AQI
29AQI
14th January 2025
32AQI
32AQI
15th January 2025
33AQI
33AQI
16th January 2025
30AQI
30AQI
17th January 2025
30AQI
30AQI
18th January 2025
31AQI
31AQI
19th January 2025
44AQI
44AQI
20th January 2025
37AQI
37AQI
21st January 2025
44AQI
44AQI
22nd January 2025
37AQI
37AQI
23rd January 2025
46AQI
46AQI
24th January 2025
50AQI
50AQI
25th January 2025
38AQI
38AQI
26th January 2025
38AQI
38AQI
27th January 2025
32AQI
32AQI
28th January 2025
41AQI
41AQI
29th January 2025
31AQI
31AQI
30th January 2025
34AQI
34AQI
31st January 2025
32AQI
32AQI
1st February 2025
46AQI
46AQI
2nd February 2025
51AQI
51AQI
3rd February 2025
46AQI
46AQI
4th February 2025
38AQI
38AQI
5th February 2025
35AQI
35AQI
6th February 2025
30AQI
30AQI
7th February 2025
30AQI
30AQI
8th February 2025
30AQI
30AQI
9th February 2025
29AQI
29AQI
10th February 2025
28AQI
28AQI
11th February 2025
29AQI
29AQI
12th February 2025
40AQI
40AQI
13th February 2025
33AQI
33AQI
14th February 2025
34AQI
34AQI
15th February 2025
29AQI
29AQI
16th February 2025
41AQI
41AQI
17th February 2025
40AQI
40AQI
18th February 2025
34AQI
34AQI
19th February 2025
33AQI
33AQI
20th February 2025
30AQI
30AQI
21st February 2025
32AQI
32AQI
22nd February 2025
30AQI
30AQI
23rd February 2025
33AQI
33AQI
24th February 2025
32AQI
32AQI
25th February 2025
34AQI
34AQI
26th February 2025
37AQI
37AQI
27th February 2025
43AQI
43AQI
28th February 2025
50AQI
50AQI
1st March 2025
54AQI
54AQI
2nd March 2025
60AQI
60AQI
3rd March 2025
40AQI
40AQI
4th March 2025
39AQI
39AQI
5th March 2025
29AQI
29AQI
6th March 2025
35AQI
35AQI
7th March 2025
32AQI
32AQI
8th March 2025
41AQI
41AQI
9th March 2025
40AQI
40AQI
10th March 2025
39AQI
39AQI
11th March 2025
42AQI
42AQI
12th March 2025
48AQI
48AQI
13th March 2025
50AQI
50AQI
14th March 2025
45AQI
45AQI
15th March 2025
42AQI
42AQI
16th March 2025
26AQI
26AQI
17th March 2025
23AQI
23AQI
18th March 2025
26AQI
26AQI
19th March 2025
18AQI
18AQI
20th March 2025
25AQI
25AQI
21st March 2025
38AQI
38AQI
22nd March 2025
48AQI
48AQI
23rd March 2025
57AQI
57AQI
24th March 2025
60AQI
60AQI
25th March 2025
73AQI
73AQI
26th March 2025
81AQI
81AQI
27th March 2025
77AQI
77AQI
28th March 2025
61AQI
61AQI
29th March 2025
39AQI
39AQI
30th March 2025
40AQI
40AQI
31st March 2025
33AQI
33AQI
1st April 2025
32AQI
32AQI
2nd April 2025
21AQI
21AQI
3rd April 2025
23AQI
23AQI
4th April 2025
20AQI
20AQI
5th April 2025
29AQI
29AQI
6th April 2025
23AQI
23AQI
7th April 2025
31AQI
31AQI
8th April 2025
39AQI
39AQI
9th April 2025
30AQI
30AQI
10th April 2025
46AQI
46AQI
11th April 2025
43AQI
43AQI
12th April 2025
44AQI
44AQI
13th April 2025
35AQI
35AQI
14th April 2025
36AQI
36AQI
15th April 2025
29AQI
29AQI
16th April 2025
29AQI
29AQI
17th April 2025
44AQI
44AQI
18th April 2025
57AQI
57AQI
19th April 2025
67AQI
67AQI
20th April 2025
66AQI
66AQI
21st April 2025
46AQI
46AQI
22nd April 2025
54AQI
54AQI
23rd April 2025
35AQI
35AQI
24th April 2025
39AQI
39AQI
25th April 2025
45AQI
45AQI
26th April 2025
49AQI
49AQI
27th April 2025
52AQI
52AQI
28th April 2025
56AQI
56AQI
29th April 2025
39AQI
39AQI
30th April 2025
51AQI
51AQI
1st May 2025
44AQI
44AQI
2nd May 2025
35AQI
35AQI
3rd May 2025
32AQI
32AQI
4th May 2025
40AQI
40AQI
5th May 2025
35AQI
35AQI
6th May 2025
34AQI
34AQI
7th May 2025
26AQI
26AQI
8th May 2025
34AQI
34AQI
9th May 2025
33AQI
33AQI
10th May 2025
29AQI
29AQI
11th May 2025
23AQI
23AQI
12th May 2025
24AQI
24AQI
13th May 2025
35AQI
35AQI
14th May 2025
40AQI
40AQI
15th May 2025
41AQI
41AQI
16th May 2025
48AQI
48AQI
17th May 2025
31AQI
31AQI
18th May 2025
48AQI
48AQI
19th May 2025
47AQI
47AQI
20th May 2025
62AQI
62AQI
21st May 2025
68AQI
68AQI
22nd May 2025
56AQI
56AQI
23rd May 2025
52AQI
52AQI
24th May 2025
50AQI
50AQI
25th May 2025
37AQI
37AQI
26th May 2025
33AQI
33AQI
27th May 2025
33AQI
33AQI
28th May 2025
30AQI
30AQI
29th May 2025
38AQI
38AQI
30th May 2025
30AQI
30AQI
31st May 2025
23AQI
23AQI
1st June 2025
23AQI
23AQI
2nd June 2025
33AQI
33AQI
3rd June 2025
33AQI
33AQI
4th June 2025
30AQI
30AQI
5th June 2025
41AQI
41AQI
6th June 2025
46AQI
46AQI
7th June 2025
52AQI
52AQI
8th June 2025
60AQI
60AQI
9th June 2025
54AQI
54AQI
10th June 2025
39AQI
39AQI
11th June 2025
29AQI
29AQI
12th June 2025
40AQI
40AQI
13th June 2025
48AQI
48AQI
14th June 2025
39AQI
39AQI
15th June 2025
32AQI
32AQI
16th June 2025
36AQI
36AQI
17th June 2025
49AQI
49AQI
18th June 2025
46AQI
46AQI
19th June 2025
48AQI
48AQI
20th June 2025
48AQI
48AQI
21st June 2025
41AQI
41AQI
22nd June 2025
31AQI
31AQI
23rd June 2025
33AQI
33AQI
24th June 2025
30AQI
30AQI
25th June 2025
26AQI
26AQI
26th June 2025
25AQI
25AQI
27th June 2025
29AQI
29AQI
28th June 2025
31AQI
31AQI
29th June 2025
36AQI
36AQI
30th June 2025
40AQI
40AQI
1st July 2025
43AQI
43AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
46AQI
46AQI
4th July 2025
45AQI
45AQI
5th July 2025
47AQI
47AQI
6th July 2025
52AQI
52AQI
7th July 2025
69AQI
69AQI
8th July 2025
76AQI
76AQI
9th July 2025
77AQI
77AQI
10th July 2025
65AQI
65AQI
11th July 2025
54AQI
54AQI
12th July 2025
56AQI
56AQI
13th July 2025
55AQI
55AQI
14th July 2025
46AQI
46AQI
15th July 2025
43AQI
43AQI
16th July 2025
45AQI
45AQI
17th July 2025
42AQI
42AQI
18th July 2025
40AQI
40AQI
19th July 2025
38AQI
38AQI
20th July 2025
37AQI
37AQI
21st July 2025
38AQI
38AQI
22nd July 2025
38AQI
38AQI
23rd July 2025
42AQI
42AQI
24th July 2025
42AQI
42AQI
25th July 2025
43AQI
43AQI
26th July 2025
43AQI
43AQI
27th July 2025
41AQI
41AQI
28th July 2025
43AQI
43AQI
29th July 2025
44AQI
44AQI
30th July 2025
36AQI
36AQI
31st July 2025
37AQI
37AQI
1st August 2025
35AQI
35AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
46AQI
46AQI
4th August 2025
60AQI
60AQI
5th August 2025
51AQI
51AQI
6th August 2025
50AQI
50AQI
7th August 2025
44AQI
44AQI
8th August 2025
41AQI
41AQI
9th August 2025
44AQI
44AQI
10th August 2025
42AQI
42AQI
11th August 2025
39AQI
39AQI
12th August 2025
35AQI
35AQI
13th August 2025
33AQI
33AQI
14th August 2025
33AQI
33AQI
15th August 2025
33AQI
33AQI
16th August 2025
36AQI
36AQI
17th August 2025
38AQI
38AQI
18th August 2025
41AQI
41AQI
19th August 2025
43AQI
43AQI
20th August 2025
45AQI
45AQI
21st August 2025
45AQI
45AQI
22nd August 2025
47AQI
47AQI
23rd August 2025
47AQI
47AQI
24th August 2025
54AQI
54AQI
25th August 2025
56AQI
56AQI
26th August 2025
56AQI
56AQI
27th August 2025
51AQI
51AQI
28th August 2025
48AQI
48AQI
29th August 2025
49AQI
49AQI
30th August 2025
55AQI
55AQI
31st August 2025
54AQI
54AQI
1st September 2025
44AQI
44AQI
2nd September 2025
38AQI
38AQI
3rd September 2025
36AQI
36AQI
4th September 2025
31AQI
31AQI
5th September 2025
27AQI
27AQI
6th September 2025
28AQI
28AQI
7th September 2025
30AQI
30AQI
8th September 2025
37AQI
37AQI
9th September 2025
39AQI
39AQI
10th September 2025
36AQI
36AQI
11th September 2025
30AQI
30AQI
12th September 2025
30AQI
30AQI
13th September 2025
27AQI
27AQI
14th September 2025
36AQI
36AQI
15th September 2025
36AQI
36AQI
16th September 2025
40AQI
40AQI
17th September 2025
47AQI
47AQI
18th September 2025
42AQI
42AQI
19th September 2025
33AQI
33AQI
20th September 2025
33AQI
33AQI
21st September 2025
26AQI
26AQI
22nd September 2025
28AQI
28AQI
23rd September 2025
29AQI
29AQI
24th September 2025
29AQI
29AQI
25th September 2025
37AQI
37AQI
26th September 2025
49AQI
49AQI
27th September 2025
37AQI
37AQI
28th September 2025
37AQI
37AQI
29th September 2025
33AQI
33AQI
30th September 2025
33AQI
33AQI
1st October 2025
38AQI
38AQI
2nd October 2025
40AQI
40AQI
3rd October 2025
52AQI
52AQI
4th October 2025
64AQI
64AQI
5th October 2025
56AQI
56AQI
6th October 2025
57AQI
57AQI
7th October 2025
51AQI
51AQI
8th October 2025
58AQI
58AQI
9th October 2025
57AQI
57AQI
10th October 2025
53AQI
53AQI
11th October 2025
52AQI
52AQI
12th October 2025
47AQI
47AQI
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
34AQI
36AQI
44AQI
40AQI
38AQI
38AQI
47AQI
45AQI
35AQI
52AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202540AQI
30
1
27
1
23
8
23
7
27
4
27
3
23
8
23
8
30
3
9
236
49
Highest AQI recorded in
October52AQI
Lowest AQI recorded in
January34AQI
202439AQI
16
4
25
6
13
17
26
5
20
10
17
14
29
2
27
3
30
1
27
3
31
265
61
Highest AQI recorded in
April53AQI
Lowest AQI recorded in
January30AQI
202340AQI
29
2
22
6
24
7
19
11
23
8
19
11
18
13
26
28
2
30
1
21
8
25
6
284
75
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
August30AQI
202239AQI
29
1
19
2
21
10
19
11
24
7
16
14
17
7
1
27
1
28
3
25
5
31
257
61
Highest AQI recorded in
June48AQI
Lowest AQI recorded in
December28AQI
202137AQI
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 recorded in
March45AQI
Lowest AQI recorded in
December33AQI
202037AQI
10
3
17
4
17
1
22
8
29
2
13
18
19
28
3
21
9
28
3
204
51
Highest AQI recorded in
August53AQI
Lowest AQI recorded in
July25AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
40AQILeast Polluted Year Recorded
2020(Avg.)
37AQIHidaka's annual 2025 AQI (40) shows an average percentage change of 4.7% (worsened AQI) compared to previous years: 2020 (37), 2021 (37), 2022 (39), 2023 (40), 2024 (39).
