Chichibu, 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
Chichibu, Saitama, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Aug 2021
62AQILowest AQI recorded on
30th Aug 2024
8AQISame Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Chichibu, Saitama, Japan
AQI
Day
Night
.
4 AM5th Aug 2025
6 PM
3 AM6th Aug 2025
Day time
Avg. Highest Time
10AM5th Aug
62AQI
Avg. Lowest Time
2PM5th Aug
50AQI
Night time
Avg. Highest Time
7PM5th Aug
52AQI
Avg. Lowest Time
11PM5th Aug
42AQI
In the last 24 hours,
Chichibu's AQI reached its highest point of 62 at 10 AM during the Day, while the lowest point, 42, was recorded at 11 PM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chichibu, Saitama, Japan
JulAug
07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
7th Jul 2025524 AMAQI
7th Jul 2025525 AMAQI
7th Jul 2025536 AMAQI
7th Jul 2025537 AMAQI
7th Jul 2025538 AMAQI
7th Jul 2025659 AMAQI
7th Jul 20257410 AMAQI
7th Jul 20257811 AMAQI
7th Jul 20258112 PMAQI
7th Jul 2025821 PMAQI
7th Jul 2025782 PMAQI
7th Jul 2025653 PMAQI
7th Jul 2025734 PMAQI
7th Jul 2025805 PMAQI
7th Jul 2025896 PMAQI
7th Jul 2025987 PMAQI
7th Jul 2025888 PMAQI
7th Jul 2025759 PMAQI
7th Jul 20257410 PMAQI
7th Jul 20257311 PMAQI
8th Jul 20257212 AMAQI
8th Jul 2025651 AMAQI
8th Jul 2025552 AMAQI
8th Jul 2025553 AMAQI
29°C25/35°C
8th Jul 2025564 AMAQI
8th Jul 2025595 AMAQI
8th Jul 2025596 AMAQI
8th Jul 2025597 AMAQI
8th Jul 2025598 AMAQI
8th Jul 2025869 AMAQI
8th Jul 202510310 AMAQI
8th Jul 202510211 AMAQI
8th Jul 202510212 PMAQI
8th Jul 2025901 PMAQI
8th Jul 2025862 PMAQI
8th Jul 2025753 PMAQI
8th Jul 2025814 PMAQI
8th Jul 2025805 PMAQI
8th Jul 2025806 PMAQI
8th Jul 2025797 PMAQI
8th Jul 2025728 PMAQI
8th Jul 2025689 PMAQI
8th Jul 20256910 PMAQI
8th Jul 20257011 PMAQI
9th Jul 20256812 AMAQI
9th Jul 2025641 AMAQI
9th Jul 2025612 AMAQI
9th Jul 2025603 AMAQI
29°C26/35°C
9th Jul 2025644 AMAQI
9th Jul 2025685 AMAQI
9th Jul 2025686 AMAQI
9th Jul 2025687 AMAQI
9th Jul 2025688 AMAQI
9th Jul 2025729 AMAQI
9th Jul 20257710 AMAQI
9th Jul 20257711 AMAQI
9th Jul 20257312 PMAQI
9th Jul 2025791 PMAQI
9th Jul 2025792 PMAQI
9th Jul 2025883 PMAQI
9th Jul 2025984 PMAQI
9th Jul 2025985 PMAQI
9th Jul 2025996 PMAQI
9th Jul 2025917 PMAQI
9th Jul 2025838 PMAQI
9th Jul 2025769 PMAQI
9th Jul 20257410 PMAQI
9th Jul 20257111 PMAQI
10th Jul 20257112 AMAQI
10th Jul 2025701 AMAQI
10th Jul 2025672 AMAQI
10th Jul 2025663 AMAQI
29°C25/35°C
10th Jul 2025684 AMAQI
10th Jul 2025695 AMAQI
10th Jul 2025696 AMAQI
10th Jul 2025697 AMAQI
10th Jul 2025698 AMAQI
10th Jul 2025709 AMAQI
10th Jul 20257510 AMAQI
10th Jul 20257411 AMAQI
10th Jul 20257712 PMAQI
10th Jul 2025721 PMAQI
10th Jul 2025722 PMAQI
10th Jul 2025803 PMAQI
10th Jul 2025734 PMAQI
10th Jul 2025605 PMAQI
10th Jul 2025436 PMAQI
10th Jul 2025247 PMAQI
10th Jul 2025398 PMAQI
10th Jul 2025559 PMAQI
10th Jul 20255510 PMAQI
10th Jul 20255511 PMAQI
11th Jul 20255512 AMAQI
11th Jul 2025581 AMAQI
11th Jul 2025672 AMAQI
11th Jul 2025683 AMAQI
28°C23/33°C
11th Jul 2025704 AMAQI
11th Jul 2025705 AMAQI
11th Jul 2025696 AMAQI
11th Jul 2025697 AMAQI
11th Jul 2025698 AMAQI
11th Jul 2025309 AMAQI
11th Jul 20251610 AMAQI
11th Jul 20251611 AMAQI
11th Jul 20251612 PMAQI
11th Jul 2025241 PMAQI
11th Jul 2025242 PMAQI
11th Jul 2025263 PMAQI
11th Jul 2025254 PMAQI
11th Jul 2025265 PMAQI
11th Jul 2025296 PMAQI
11th Jul 2025257 PMAQI
11th Jul 2025378 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255310 PMAQI
11th Jul 20255311 PMAQI
12th Jul 20255312 AMAQI
12th Jul 2025571 AMAQI
12th Jul 2025662 AMAQI
12th Jul 2025663 AMAQI
22°C20/22°C
12th Jul 2025634 AMAQI
12th Jul 2025595 AMAQI
12th Jul 2025586 AMAQI
12th Jul 2025597 AMAQI
12th Jul 2025598 AMAQI
12th Jul 2025349 AMAQI
12th Jul 20252610 AMAQI
12th Jul 20252811 AMAQI
12th Jul 20252612 PMAQI
12th Jul 2025321 PMAQI
12th Jul 2025342 PMAQI
12th Jul 2025343 PMAQI
12th Jul 2025364 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025436 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025508 PMAQI
12th Jul 2025539 PMAQI
12th Jul 20255210 PMAQI
12th Jul 20255211 PMAQI
13th Jul 20255112 AMAQI
13th Jul 2025551 AMAQI
13th Jul 2025602 AMAQI
13th Jul 2025603 AMAQI
23°C20/28°C
13th Jul 2025594 AMAQI
13th Jul 2025575 AMAQI
13th Jul 2025576 AMAQI
13th Jul 2025577 AMAQI
13th Jul 2025578 AMAQI
13th Jul 2025439 AMAQI
13th Jul 20252910 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20253912 PMAQI
13th Jul 2025401 PMAQI
13th Jul 2025372 PMAQI
13th Jul 2025413 PMAQI
13th Jul 2025454 PMAQI
13th Jul 2025465 PMAQI
13th Jul 2025496 PMAQI
13th Jul 2025517 PMAQI
13th Jul 2025518 PMAQI
13th Jul 2025519 PMAQI
13th Jul 20255010 PMAQI
13th Jul 20255011 PMAQI
14th Jul 20255012 AMAQI
14th Jul 2025531 AMAQI
14th Jul 2025572 AMAQI
14th Jul 2025573 AMAQI
26°C22/30°C
14th Jul 2025564 AMAQI
14th Jul 2025555 AMAQI
14th Jul 2025556 AMAQI
14th Jul 2025547 AMAQI
14th Jul 2025548 AMAQI
14th Jul 2025329 AMAQI
14th Jul 20252610 AMAQI
14th Jul 20251711 AMAQI
14th Jul 20251612 PMAQI
14th Jul 2025241 PMAQI
14th Jul 2025242 PMAQI
14th Jul 2025223 PMAQI
14th Jul 2025214 PMAQI
14th Jul 2025235 PMAQI
14th Jul 2025256 PMAQI
14th Jul 2025277 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025449 PMAQI
14th Jul 20254310 PMAQI
14th Jul 20254111 PMAQI
15th Jul 20254212 AMAQI
15th Jul 2025481 AMAQI
15th Jul 2025552 AMAQI
15th Jul 2025553 AMAQI
25°C23/28°C
15th Jul 2025544 AMAQI
15th Jul 2025535 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20251410 AMAQI
15th Jul 20251511 AMAQI
15th Jul 20251612 PMAQI
15th Jul 2025191 PMAQI
15th Jul 2025202 PMAQI
15th Jul 2025183 PMAQI
15th Jul 2025194 PMAQI
15th Jul 2025215 PMAQI
15th Jul 2025206 PMAQI
15th Jul 2025197 PMAQI
15th Jul 2025248 PMAQI
15th Jul 2025359 PMAQI
15th Jul 20253610 PMAQI
15th Jul 20253411 PMAQI
16th Jul 20253612 AMAQI
16th Jul 2025431 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI
27°C24/33°C
16th Jul 2025514 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025476 AMAQI
16th Jul 2025477 AMAQI
16th Jul 2025488 AMAQI
16th Jul 2025319 AMAQI
16th Jul 20252810 AMAQI
16th Jul 20253711 AMAQI
16th Jul 20253912 PMAQI
16th Jul 2025351 PMAQI
16th Jul 2025392 PMAQI
16th Jul 2025373 PMAQI
16th Jul 2025404 PMAQI
16th Jul 2025385 PMAQI
16th Jul 2025316 PMAQI
16th Jul 2025227 PMAQI
16th Jul 2025288 PMAQI
16th Jul 2025359 PMAQI
16th Jul 20253610 PMAQI
16th Jul 20253311 PMAQI
17th Jul 20253212 AMAQI
17th Jul 2025391 AMAQI
17th Jul 2025492 AMAQI
17th Jul 2025493 AMAQI
28°C24/34°C
17th Jul 2025474 AMAQI
17th Jul 2025475 AMAQI
17th Jul 2025476 AMAQI
17th Jul 2025477 AMAQI
17th Jul 2025468 AMAQI
17th Jul 2025229 AMAQI
17th Jul 20251510 AMAQI
17th Jul 20251611 AMAQI
17th Jul 20251712 PMAQI
17th Jul 2025231 PMAQI
17th Jul 2025232 PMAQI
17th Jul 2025223 PMAQI
17th Jul 2025244 PMAQI
17th Jul 2025265 PMAQI
17th Jul 2025356 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025328 PMAQI
17th Jul 2025369 PMAQI
17th Jul 20253510 PMAQI
17th Jul 20253911 PMAQI
18th Jul 20253812 AMAQI
18th Jul 2025421 AMAQI
18th Jul 2025462 AMAQI
18th Jul 2025473 AMAQI
27°C24/32°C
18th Jul 2025444 AMAQI
18th Jul 2025415 AMAQI
18th Jul 2025406 AMAQI
18th Jul 2025407 AMAQI
18th Jul 2025408 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252310 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20252712 PMAQI
18th Jul 2025311 PMAQI
18th Jul 2025312 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025294 PMAQI
18th Jul 2025325 PMAQI
18th Jul 2025316 PMAQI
18th Jul 2025347 PMAQI
18th Jul 2025348 PMAQI
18th Jul 2025389 PMAQI
18th Jul 20253710 PMAQI
18th Jul 20253711 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025401 AMAQI
19th Jul 2025432 AMAQI
19th Jul 2025443 AMAQI
27°C23/34°C
19th Jul 2025424 AMAQI
19th Jul 2025415 AMAQI
19th Jul 2025416 AMAQI
19th Jul 2025417 AMAQI
19th Jul 2025408 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252510 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025241 PMAQI
19th Jul 2025252 PMAQI
19th Jul 2025253 PMAQI
19th Jul 2025314 PMAQI
19th Jul 2025335 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025327 PMAQI
19th Jul 2025328 PMAQI
19th Jul 2025379 PMAQI
19th Jul 20253710 PMAQI
19th Jul 20253611 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025381 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025423 AMAQI
28°C23/34°C
20th Jul 2025414 AMAQI
20th Jul 2025395 AMAQI
20th Jul 2025396 AMAQI
20th Jul 2025397 AMAQI
20th Jul 2025398 AMAQI
20th Jul 2025329 AMAQI
20th Jul 20252510 AMAQI
20th Jul 20252711 AMAQI
20th Jul 20253112 PMAQI
20th Jul 2025321 PMAQI
20th Jul 2025312 PMAQI
20th Jul 2025373 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025405 PMAQI
20th Jul 2025456 PMAQI
20th Jul 2025447 PMAQI
20th Jul 2025408 PMAQI
20th Jul 2025379 PMAQI
20th Jul 20253710 PMAQI
20th Jul 20253811 PMAQI
21st Jul 20253812 AMAQI
21st Jul 2025391 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025403 AMAQI
29°C23/36°C
21st Jul 2025404 AMAQI
21st Jul 2025385 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025387 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025329 AMAQI
21st Jul 20254010 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20254112 PMAQI
21st Jul 2025461 PMAQI
21st Jul 2025432 PMAQI
21st Jul 2025453 PMAQI
21st Jul 2025524 PMAQI
21st Jul 2025545 PMAQI
21st Jul 2025506 PMAQI
21st Jul 2025467 PMAQI
21st Jul 2025468 PMAQI
21st Jul 2025449 PMAQI
21st Jul 20254510 PMAQI
21st Jul 20254411 PMAQI
22nd Jul 20254412 AMAQI
22nd Jul 2025411 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025393 AMAQI
30°C24/37°C
22nd Jul 2025394 AMAQI
22nd Jul 2025405 AMAQI
22nd Jul 2025396 AMAQI
22nd Jul 2025407 AMAQI
22nd Jul 2025398 AMAQI
22nd Jul 2025389 AMAQI
22nd Jul 20253810 AMAQI
22nd Jul 20254211 AMAQI
22nd Jul 20255312 PMAQI
22nd Jul 2025551 PMAQI
22nd Jul 2025502 PMAQI
22nd Jul 2025483 PMAQI
22nd Jul 2025464 PMAQI
22nd Jul 2025505 PMAQI
22nd Jul 2025516 PMAQI
22nd Jul 2025507 PMAQI
22nd Jul 2025478 PMAQI
22nd Jul 2025469 PMAQI
22nd Jul 20254410 PMAQI
22nd Jul 20254511 PMAQI
23rd Jul 20254412 AMAQI
23rd Jul 2025431 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025413 AMAQI
30°C25/37°C
23rd Jul 2025414 AMAQI
23rd Jul 2025425 AMAQI
23rd Jul 2025436 AMAQI
23rd Jul 2025437 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025429 AMAQI
23rd Jul 20254510 AMAQI
23rd Jul 20255011 AMAQI
23rd Jul 20255412 PMAQI
23rd Jul 2025561 PMAQI
23rd Jul 2025552 PMAQI
23rd Jul 2025553 PMAQI
23rd Jul 2025594 PMAQI
23rd Jul 2025655 PMAQI
23rd Jul 2025556 PMAQI
23rd Jul 2025487 PMAQI
23rd Jul 2025498 PMAQI
23rd Jul 2025449 PMAQI
23rd Jul 20254310 PMAQI
23rd Jul 20254011 PMAQI
24th Jul 20254012 AMAQI
24th Jul 2025411 AMAQI
24th Jul 2025432 AMAQI
24th Jul 2025423 AMAQI
30°C24/37°C
24th Jul 2025444 AMAQI
24th Jul 2025465 AMAQI
24th Jul 2025456 AMAQI
24th Jul 2025457 AMAQI
24th Jul 2025458 AMAQI
24th Jul 2025479 AMAQI
24th Jul 20254810 AMAQI
24th Jul 20255111 AMAQI
24th Jul 20255612 PMAQI
24th Jul 2025571 PMAQI
24th Jul 2025572 PMAQI
24th Jul 2025593 PMAQI
24th Jul 2025624 PMAQI
24th Jul 2025565 PMAQI
24th Jul 2025546 PMAQI
24th Jul 2025587 PMAQI
24th Jul 2025538 PMAQI
24th Jul 2025499 PMAQI
24th Jul 20255010 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20255012 AMAQI
25th Jul 2025471 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025443 AMAQI
30°C24/37°C
25th Jul 2025464 AMAQI
25th Jul 2025485 AMAQI
25th Jul 2025476 AMAQI
25th Jul 2025477 AMAQI
25th Jul 2025478 AMAQI
25th Jul 2025509 AMAQI
25th Jul 20255110 AMAQI
25th Jul 20255411 AMAQI
25th Jul 20255812 PMAQI
25th Jul 2025601 PMAQI
25th Jul 2025592 PMAQI
25th Jul 2025623 PMAQI
25th Jul 2025534 PMAQI
25th Jul 2025375 PMAQI
25th Jul 2025436 PMAQI
25th Jul 2025417 PMAQI
25th Jul 2025438 PMAQI
25th Jul 2025489 PMAQI
25th Jul 20254710 PMAQI
25th Jul 20254511 PMAQI
26th Jul 20254412 AMAQI
26th Jul 2025431 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025463 AMAQI
30°C24/37°C
26th Jul 2025494 AMAQI
26th Jul 2025515 AMAQI
26th Jul 2025506 AMAQI
26th Jul 2025517 AMAQI
26th Jul 2025518 AMAQI
26th Jul 2025489 AMAQI
26th Jul 20254710 AMAQI
26th Jul 20255111 AMAQI
26th Jul 20255512 PMAQI
26th Jul 2025561 PMAQI
26th Jul 2025552 PMAQI
26th Jul 2025563 PMAQI
26th Jul 2025534 PMAQI
26th Jul 2025455 PMAQI
26th Jul 2025386 PMAQI
26th Jul 2025377 PMAQI
26th Jul 2025398 PMAQI
26th Jul 2025449 PMAQI
26th Jul 20254310 PMAQI
26th Jul 20254211 PMAQI
27th Jul 20254312 AMAQI
27th Jul 2025451 AMAQI
27th Jul 2025472 AMAQI
27th Jul 2025483 AMAQI
30°C24/38°C
27th Jul 2025494 AMAQI
27th Jul 2025505 AMAQI
27th Jul 2025506 AMAQI
27th Jul 2025507 AMAQI
27th Jul 2025508 AMAQI
27th Jul 2025439 AMAQI
27th Jul 20253810 AMAQI
27th Jul 20254511 AMAQI
27th Jul 20254812 PMAQI
27th Jul 2025421 PMAQI
27th Jul 2025502 PMAQI
27th Jul 2025473 PMAQI
27th Jul 2025524 PMAQI
27th Jul 2025515 PMAQI
27th Jul 2025416 PMAQI
27th Jul 2025377 PMAQI
27th Jul 2025368 PMAQI
27th Jul 2025429 PMAQI
27th Jul 20254310 PMAQI
27th Jul 20254111 PMAQI
28th Jul 20254112 AMAQI
28th Jul 2025441 AMAQI
28th Jul 2025482 AMAQI
28th Jul 2025483 AMAQI
30°C25/37°C
28th Jul 2025484 AMAQI
28th Jul 2025485 AMAQI
28th Jul 2025476 AMAQI
28th Jul 2025487 AMAQI
28th Jul 2025488 AMAQI
28th Jul 2025399 AMAQI
28th Jul 20253110 AMAQI
28th Jul 20254011 AMAQI
28th Jul 20254312 PMAQI
28th Jul 2025471 PMAQI
28th Jul 2025482 PMAQI
28th Jul 2025483 PMAQI
28th Jul 2025534 PMAQI
28th Jul 2025595 PMAQI
28th Jul 2025626 PMAQI
28th Jul 2025597 PMAQI
28th Jul 2025548 PMAQI
28th Jul 2025499 PMAQI
28th Jul 20254910 PMAQI
28th Jul 20254511 PMAQI
29th Jul 20254412 AMAQI
29th Jul 2025451 AMAQI
29th Jul 2025472 AMAQI
29th Jul 2025463 AMAQI
30°C25/37°C
29th Jul 2025464 AMAQI
29th Jul 2025465 AMAQI
29th Jul 2025466 AMAQI
29th Jul 2025467 AMAQI
29th Jul 2025468 AMAQI
29th Jul 2025449 AMAQI
29th Jul 20254310 AMAQI
29th Jul 20254411 AMAQI
29th Jul 20254912 PMAQI
29th Jul 2025491 PMAQI
29th Jul 2025472 PMAQI
29th Jul 2025493 PMAQI
29th Jul 2025504 PMAQI
29th Jul 2025475 PMAQI
29th Jul 2025556 PMAQI
29th Jul 2025577 PMAQI
29th Jul 2025548 PMAQI
29th Jul 2025479 PMAQI
29th Jul 20254410 PMAQI
29th Jul 20254111 PMAQI
30th Jul 20254012 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025462 AMAQI
30th Jul 2025463 AMAQI
31°C25/37°C
30th Jul 2025464 AMAQI
30th Jul 2025475 AMAQI
30th Jul 2025476 AMAQI
30th Jul 2025477 AMAQI
30th Jul 2025468 AMAQI
30th Jul 2025329 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20252811 AMAQI
30th Jul 20253212 PMAQI
30th Jul 2025341 PMAQI
30th Jul 2025322 PMAQI
30th Jul 2025323 PMAQI
30th Jul 2025314 PMAQI
30th Jul 2025405 PMAQI
30th Jul 2025456 PMAQI
30th Jul 2025497 PMAQI
30th Jul 2025398 PMAQI
30th Jul 2025389 PMAQI
30th Jul 20253910 PMAQI
30th Jul 20253711 PMAQI
31st Jul 20253812 AMAQI
31st Jul 2025401 AMAQI
31st Jul 2025452 AMAQI
31st Jul 2025463 AMAQI
29°C24/36°C
31st Jul 2025464 AMAQI
31st Jul 2025465 AMAQI
31st Jul 2025466 AMAQI
31st Jul 2025467 AMAQI
31st Jul 2025468 AMAQI
31st Jul 2025469 AMAQI
31st Jul 20254610 AMAQI
31st Jul 20253411 AMAQI
31st Jul 20253612 PMAQI
31st Jul 2025361 PMAQI
31st Jul 2025352 PMAQI
31st Jul 2025353 PMAQI
31st Jul 2025364 PMAQI
31st Jul 2025435 PMAQI
31st Jul 2025466 PMAQI
31st Jul 2025397 PMAQI
31st Jul 2025348 PMAQI
31st Jul 2025499 PMAQI
31st Jul 20253810 PMAQI
31st Jul 20253411 PMAQI
1st Aug 20253512 AMAQI
1st Aug 2025361 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025393 AMAQI
28°C23/35°C
1st Aug 2025384 AMAQI
1st Aug 2025355 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025407 AMAQI
1st Aug 2025378 AMAQI
1st Aug 2025339 AMAQI
1st Aug 20252910 AMAQI
1st Aug 20254411 AMAQI
1st Aug 20254712 PMAQI
1st Aug 2025441 PMAQI
1st Aug 2025352 PMAQI
1st Aug 2025323 PMAQI
1st Aug 2025464 PMAQI
1st Aug 2025415 PMAQI
1st Aug 2025426 PMAQI
1st Aug 2025387 PMAQI
1st Aug 2025338 PMAQI
1st Aug 2025329 PMAQI
1st Aug 20253610 PMAQI
1st Aug 20253111 PMAQI
2nd Aug 20253312 AMAQI
2nd Aug 2025351 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025403 AMAQI
26°C23/31°C
2nd Aug 2025424 AMAQI
2nd Aug 2025415 AMAQI
2nd Aug 2025426 AMAQI
2nd Aug 2025397 AMAQI
2nd Aug 2025418 AMAQI
2nd Aug 2025399 AMAQI
2nd Aug 20253610 AMAQI
2nd Aug 20254011 AMAQI
2nd Aug 20253212 PMAQI
2nd Aug 2025381 PMAQI
2nd Aug 2025482 PMAQI
2nd Aug 2025513 PMAQI
2nd Aug 2025434 PMAQI
2nd Aug 2025455 PMAQI
2nd Aug 2025496 PMAQI
2nd Aug 2025507 PMAQI
2nd Aug 2025428 PMAQI
2nd Aug 2025429 PMAQI
2nd Aug 20253810 PMAQI
2nd Aug 20254611 PMAQI
3rd Aug 20253512 AMAQI
3rd Aug 2025371 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025393 AMAQI
30°C25/38°C
3rd Aug 2025424 AMAQI
3rd Aug 2025405 AMAQI
3rd Aug 2025406 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025398 AMAQI
3rd Aug 2025439 AMAQI
3rd Aug 20255110 AMAQI
3rd Aug 20255011 AMAQI
3rd Aug 20255812 PMAQI
3rd Aug 2025551 PMAQI
3rd Aug 2025552 PMAQI
3rd Aug 2025463 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025545 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025469 PMAQI
3rd Aug 20254610 PMAQI
3rd Aug 20254311 PMAQI
4th Aug 20253812 AMAQI
4th Aug 2025401 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI
30°C25/37°C
4th Aug 2025434 AMAQI
4th Aug 2025455 AMAQI
4th Aug 2025456 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025458 AMAQI
4th Aug 2025539 AMAQI
4th Aug 20255810 AMAQI
4th Aug 20257511 AMAQI
4th Aug 20257312 PMAQI
4th Aug 2025691 PMAQI
4th Aug 2025802 PMAQI
4th Aug 2025693 PMAQI
4th Aug 2025834 PMAQI
4th Aug 2025725 PMAQI
4th Aug 2025726 PMAQI
4th Aug 2025717 PMAQI
4th Aug 2025638 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20255311 PMAQI
5th Aug 20255512 AMAQI
5th Aug 2025481 AMAQI
5th Aug 2025432 AMAQI
5th Aug 2025433 AMAQI
32°C27/38°C
5th Aug 2025504 AMAQI
5th Aug 2025525 AMAQI
5th Aug 2025526 AMAQI
5th Aug 2025517 AMAQI
5th Aug 2025538 AMAQI
5th Aug 2025539 AMAQI
5th Aug 20256210 AMAQI
5th Aug 20255511 AMAQI
5th Aug 20256012 PMAQI
5th Aug 2025531 PMAQI
5th Aug 2025502 PMAQI
5th Aug 2025563 PMAQI
5th Aug 2025594 PMAQI
5th Aug 2025565 PMAQI
5th Aug 2025586 PMAQI
5th Aug 2025527 PMAQI
5th Aug 2025518 PMAQI
5th Aug 2025489 PMAQI
5th Aug 20254810 PMAQI
5th Aug 20254211 PMAQI
6th Aug 20254412 AMAQI
6th Aug 2025501 AMAQI
6th Aug 2025502 AMAQI
6th Aug 2025513 AMAQI
32°C26/39°C
6th Aug 2025524 AMAQI
4 AM6th Aug 2025525 AMAQI
6th Aug 2025516 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025389 AMAQI
6th Aug 20253310 AMAQI
6th Aug 20253311 AMAQI
11 AM6th Aug 20254712 PMAQI
6th Aug 2025431 PMAQI
6th Aug 2025472 PMAQI
6th Aug 2025523 PMAQI
6th Aug 2025424 PMAQI
6th Aug 2025505 PMAQI
6th Aug 2025436 PMAQI
6 PM6th Aug 2025547 PMAQI
6th Aug 2025528 PMAQI
6th Aug 2025499 PMAQI
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
49AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 AM - 10 AM
42AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 49), while the lowest AQI was between 9 AM to 10 AM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 11 PM
47AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
47AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 47), while the lowest AQI was between 12 AM to 11 PM (Avg. 47).
2025 Days Vs Air Quality
Chichibu, Saitama, Japan
2025
87%
188
13%
29
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
188 DaysModerate
29 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 218 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Chichibu, 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.
1st January 2025
30AQI
30AQI
2nd January 2025
30AQI
30AQI
3rd January 2025
27AQI
27AQI
4th January 2025
27AQI
27AQI
5th January 2025
27AQI
27AQI
6th January 2025
40AQI
40AQI
7th January 2025
27AQI
27AQI
8th January 2025
32AQI
32AQI
9th January 2025
28AQI
28AQI
10th January 2025
27AQI
27AQI
11th January 2025
26AQI
26AQI
12th January 2025
30AQI
30AQI
13th January 2025
28AQI
28AQI
14th January 2025
29AQI
29AQI
15th January 2025
29AQI
29AQI
16th January 2025
28AQI
28AQI
17th January 2025
29AQI
29AQI
18th January 2025
29AQI
29AQI
19th January 2025
36AQI
36AQI
20th January 2025
34AQI
34AQI
21st January 2025
38AQI
38AQI
22nd January 2025
36AQI
36AQI
23rd January 2025
41AQI
41AQI
24th January 2025
47AQI
47AQI
25th January 2025
36AQI
36AQI
26th January 2025
36AQI
36AQI
27th January 2025
29AQI
29AQI
28th January 2025
34AQI
34AQI
29th January 2025
30AQI
30AQI
30th January 2025
33AQI
33AQI
31st January 2025
32AQI
32AQI
1st February 2025
39AQI
39AQI
2nd February 2025
45AQI
45AQI
3rd February 2025
42AQI
42AQI
4th February 2025
37AQI
37AQI
5th February 2025
35AQI
35AQI
6th February 2025
30AQI
30AQI
7th February 2025
32AQI
32AQI
8th February 2025
31AQI
31AQI
9th February 2025
31AQI
31AQI
10th February 2025
30AQI
30AQI
11th February 2025
31AQI
31AQI
12th February 2025
36AQI
36AQI
13th February 2025
33AQI
33AQI
14th February 2025
33AQI
33AQI
15th February 2025
31AQI
31AQI
16th February 2025
37AQI
37AQI
17th February 2025
37AQI
37AQI
18th February 2025
32AQI
32AQI
19th February 2025
32AQI
32AQI
20th February 2025
31AQI
31AQI
21st February 2025
32AQI
32AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
33AQI
33AQI
24th February 2025
33AQI
33AQI
25th February 2025
35AQI
35AQI
26th February 2025
37AQI
37AQI
27th February 2025
42AQI
42AQI
28th February 2025
48AQI
48AQI
1st March 2025
50AQI
50AQI
2nd March 2025
55AQI
55AQI
3rd March 2025
41AQI
41AQI
4th March 2025
37AQI
37AQI
5th March 2025
29AQI
29AQI
6th March 2025
32AQI
32AQI
7th March 2025
33AQI
33AQI
8th March 2025
37AQI
37AQI
9th March 2025
35AQI
35AQI
10th March 2025
38AQI
38AQI
11th March 2025
44AQI
44AQI
12th March 2025
48AQI
48AQI
13th March 2025
49AQI
49AQI
14th March 2025
44AQI
44AQI
15th March 2025
38AQI
38AQI
16th March 2025
25AQI
25AQI
17th March 2025
23AQI
23AQI
18th March 2025
25AQI
25AQI
19th March 2025
20AQI
20AQI
20th March 2025
25AQI
25AQI
21st March 2025
34AQI
34AQI
22nd March 2025
45AQI
45AQI
23rd March 2025
54AQI
54AQI
24th March 2025
59AQI
59AQI
25th March 2025
70AQI
70AQI
26th March 2025
80AQI
80AQI
27th March 2025
72AQI
72AQI
28th March 2025
57AQI
57AQI
29th March 2025
36AQI
36AQI
30th March 2025
38AQI
38AQI
31st March 2025
32AQI
32AQI
1st April 2025
28AQI
28AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
21AQI
21AQI
4th April 2025
23AQI
23AQI
5th April 2025
31AQI
31AQI
6th April 2025
28AQI
28AQI
7th April 2025
30AQI
30AQI
8th April 2025
37AQI
37AQI
9th April 2025
32AQI
32AQI
10th April 2025
45AQI
45AQI
11th April 2025
39AQI
39AQI
12th April 2025
43AQI
43AQI
13th April 2025
26AQI
26AQI
14th April 2025
31AQI
31AQI
15th April 2025
24AQI
24AQI
16th April 2025
30AQI
30AQI
17th April 2025
43AQI
43AQI
18th April 2025
55AQI
55AQI
19th April 2025
64AQI
64AQI
20th April 2025
65AQI
65AQI
21st April 2025
42AQI
42AQI
22nd April 2025
55AQI
55AQI
23rd April 2025
33AQI
33AQI
24th April 2025
38AQI
38AQI
25th April 2025
36AQI
36AQI
26th April 2025
45AQI
45AQI
27th April 2025
45AQI
45AQI
28th April 2025
53AQI
53AQI
29th April 2025
36AQI
36AQI
30th April 2025
46AQI
46AQI
1st May 2025
44AQI
44AQI
2nd May 2025
30AQI
30AQI
3rd May 2025
31AQI
31AQI
4th May 2025
36AQI
36AQI
5th May 2025
35AQI
35AQI
6th May 2025
30AQI
30AQI
7th May 2025
26AQI
26AQI
8th May 2025
34AQI
34AQI
9th May 2025
33AQI
33AQI
10th May 2025
25AQI
25AQI
11th May 2025
25AQI
25AQI
12th May 2025
24AQI
24AQI
13th May 2025
35AQI
35AQI
14th May 2025
43AQI
43AQI
15th May 2025
44AQI
44AQI
16th May 2025
49AQI
49AQI
17th May 2025
35AQI
35AQI
18th May 2025
46AQI
46AQI
19th May 2025
37AQI
37AQI
20th May 2025
58AQI
58AQI
21st May 2025
66AQI
66AQI
22nd May 2025
59AQI
59AQI
23rd May 2025
50AQI
50AQI
24th May 2025
46AQI
46AQI
25th May 2025
29AQI
29AQI
26th May 2025
31AQI
31AQI
27th May 2025
31AQI
31AQI
28th May 2025
29AQI
29AQI
29th May 2025
36AQI
36AQI
30th May 2025
25AQI
25AQI
31st May 2025
21AQI
21AQI
1st June 2025
20AQI
20AQI
2nd June 2025
33AQI
33AQI
3rd June 2025
26AQI
26AQI
4th June 2025
30AQI
30AQI
5th June 2025
37AQI
37AQI
6th June 2025
46AQI
46AQI
7th June 2025
52AQI
52AQI
8th June 2025
57AQI
57AQI
9th June 2025
54AQI
54AQI
10th June 2025
36AQI
36AQI
11th June 2025
33AQI
33AQI
12th June 2025
39AQI
39AQI
13th June 2025
46AQI
46AQI
14th June 2025
35AQI
35AQI
15th June 2025
32AQI
32AQI
16th June 2025
39AQI
39AQI
17th June 2025
46AQI
46AQI
18th June 2025
44AQI
44AQI
19th June 2025
49AQI
49AQI
20th June 2025
51AQI
51AQI
21st June 2025
46AQI
46AQI
22nd June 2025
38AQI
38AQI
23rd June 2025
39AQI
39AQI
24th June 2025
31AQI
31AQI
25th June 2025
27AQI
27AQI
26th June 2025
27AQI
27AQI
27th June 2025
33AQI
33AQI
28th June 2025
36AQI
36AQI
29th June 2025
45AQI
45AQI
30th June 2025
50AQI
50AQI
1st July 2025
53AQI
53AQI
2nd July 2025
47AQI
47AQI
3rd July 2025
52AQI
52AQI
4th July 2025
50AQI
50AQI
5th July 2025
53AQI
53AQI
6th July 2025
55AQI
55AQI
7th July 2025
69AQI
69AQI
8th July 2025
73AQI
73AQI
9th July 2025
76AQI
76AQI
10th July 2025
63AQI
63AQI
11th July 2025
45AQI
45AQI
12th July 2025
48AQI
48AQI
13th July 2025
50AQI
50AQI
14th July 2025
39AQI
39AQI
15th July 2025
34AQI
34AQI
16th July 2025
39AQI
39AQI
17th July 2025
34AQI
34AQI
18th July 2025
36AQI
36AQI
19th July 2025
35AQI
35AQI
20th July 2025
38AQI
38AQI
21st July 2025
42AQI
42AQI
22nd July 2025
44AQI
44AQI
23rd July 2025
47AQI
47AQI
24th July 2025
50AQI
50AQI
25th July 2025
48AQI
48AQI
26th July 2025
47AQI
47AQI
27th July 2025
45AQI
45AQI
28th July 2025
48AQI
48AQI
29th July 2025
47AQI
47AQI
30th July 2025
40AQI
40AQI
31st July 2025
41AQI
41AQI
1st August 2025
37AQI
37AQI
2nd August 2025
41AQI
41AQI
3rd August 2025
47AQI
47AQI
4th August 2025
57AQI
57AQI
5th August 2025
52AQI
52AQI
32AQI
35AQI
42AQI
38AQI
37AQI
39AQI
48AQI
47AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202539AQI
31
28
24
7
25
5
28
3
26
4
23
8
3
2
188
29
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
January32AQI
202436AQI
31
29
27
4
18
12
26
5
23
7
24
7
29
2
29
1
31
30
31
328
38
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
October28AQI
202338AQI
30
1
26
2
26
5
21
9
24
7
22
8
22
9
31
30
30
1
25
4
31
318
46
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
August29AQI
202236AQI
30
1
20
1
24
7
21
9
25
6
21
9
22
3
3
29
29
2
29
1
31
284
39
Highest AQI recorded in
April44AQI
Lowest AQI recorded in
September28AQI
202134AQI
31
24
4
26
5
28
2
27
4
25
5
28
3
30
1
30
31
29
1
31
340
25
Highest AQI recorded in
June41AQI
Lowest AQI recorded in
January29AQI
202035AQI
11
2
17
4
18
20
10
29
2
13
18
19
28
3
26
4
31
212
43
Highest AQI recorded in
August51AQI
Lowest AQI recorded in
September25AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
39AQILeast Polluted Year Recorded
2021(Avg.)
34AQIChichibu's annual 2025 AQI (39) shows an average percentage change of 9.01% (worsened AQI) compared to previous years: 2020 (35), 2021 (34), 2022 (36), 2023 (38), 2024 (36).
