Oji, Kawaguchi, 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
Oji, Kawaguchi, Saitama, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
26th Aug 2021
68AQILowest AQI recorded on
24th Aug 2023
10AQISame Day Analysis (6th 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: 7th Aug - 8th Aug 2025
Oji, Kawaguchi, Saitama, Japan
AQI
Day
Night
.
4 AM7th Aug 2025
6 PM
3 AM8th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
5PM7th Aug
65AQI
Avg. Lowest Time
2PM7th Aug
28AQI
In the last 24 hours,
Oji's AQI reached its highest point of 65 at 5 PM during the Night, while the lowest point, undefined, was recorded at 3 AM during the Night between 7th Aug and 8th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Oji, Kawaguchi, Saitama, Japan
JulAug
09th - 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 - 07th07th - 08th08th
Day
Night
9th Jul 2025674 AMAQI
9th Jul 2025715 AMAQI
9th Jul 2025726 AMAQI
9th Jul 2025727 AMAQI
9th Jul 2025718 AMAQI
9th Jul 20251099 AMAQI
9th Jul 202511810 AMAQI
9th Jul 202512911 AMAQI
9th Jul 202512712 PMAQI
9th Jul 20251071 PMAQI
9th Jul 20251012 PMAQI
9th Jul 20251043 PMAQI
9th Jul 20251004 PMAQI
9th Jul 2025985 PMAQI
9th Jul 2025946 PMAQI
9th Jul 2025787 PMAQI
9th Jul 2025628 PMAQI
9th Jul 2025629 PMAQI
9th Jul 20256210 PMAQI
9th Jul 20256011 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025641 AMAQI
10th Jul 2025712 AMAQI
10th Jul 2025723 AMAQI
31°C28/35°C
10th Jul 2025744 AMAQI
10th Jul 2025785 AMAQI
10th Jul 2025786 AMAQI
10th Jul 2025787 AMAQI
10th Jul 2025788 AMAQI
10th Jul 2025539 AMAQI
10th Jul 20255510 AMAQI
10th Jul 20256211 AMAQI
10th Jul 20256612 PMAQI
10th Jul 2025601 PMAQI
10th Jul 2025532 PMAQI
10th Jul 2025463 PMAQI
10th Jul 2025424 PMAQI
10th Jul 2025465 PMAQI
10th Jul 2025466 PMAQI
10th Jul 2025517 PMAQI
10th Jul 2025558 PMAQI
10th Jul 2025609 PMAQI
10th Jul 20255810 PMAQI
10th Jul 20255811 PMAQI
11th Jul 20255812 AMAQI
11th Jul 2025641 AMAQI
11th Jul 2025702 AMAQI
11th Jul 2025703 AMAQI
29°C24/35°C
11th Jul 2025704 AMAQI
11th Jul 2025685 AMAQI
11th Jul 2025696 AMAQI
11th Jul 2025687 AMAQI
11th Jul 2025698 AMAQI
11th Jul 2025309 AMAQI
11th Jul 20251910 AMAQI
11th Jul 20252111 AMAQI
11th Jul 20252212 PMAQI
11th Jul 2025281 PMAQI
11th Jul 2025302 PMAQI
11th Jul 2025293 PMAQI
11th Jul 2025304 PMAQI
11th Jul 2025315 PMAQI
11th Jul 2025326 PMAQI
11th Jul 2025307 PMAQI
11th Jul 2025388 PMAQI
11th Jul 2025569 PMAQI
11th Jul 20255710 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255712 AMAQI
12th Jul 2025611 AMAQI
12th Jul 2025662 AMAQI
12th Jul 2025673 AMAQI
24°C23/27°C
12th Jul 2025654 AMAQI
12th Jul 2025615 AMAQI
12th Jul 2025616 AMAQI
12th Jul 2025627 AMAQI
12th Jul 2025618 AMAQI
12th Jul 2025429 AMAQI
12th Jul 20253510 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20254212 PMAQI
12th Jul 2025461 PMAQI
12th Jul 2025482 PMAQI
12th Jul 2025453 PMAQI
12th Jul 2025444 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025396 PMAQI
12th Jul 2025397 PMAQI
12th Jul 2025438 PMAQI
12th Jul 2025549 PMAQI
12th Jul 20255410 PMAQI
12th Jul 20255411 PMAQI
13th Jul 20255312 AMAQI
13th Jul 2025581 AMAQI
13th Jul 2025622 AMAQI
13th Jul 2025623 AMAQI
25°C22/29°C
13th Jul 2025614 AMAQI
13th Jul 2025595 AMAQI
13th Jul 2025596 AMAQI
13th Jul 2025597 AMAQI
13th Jul 2025598 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20254411 AMAQI
13th Jul 20254612 PMAQI
13th Jul 2025491 PMAQI
13th Jul 2025512 PMAQI
13th Jul 2025523 PMAQI
13th Jul 2025514 PMAQI
13th Jul 2025505 PMAQI
13th Jul 2025506 PMAQI
13th Jul 2025447 PMAQI
13th Jul 2025408 PMAQI
13th Jul 2025529 PMAQI
13th Jul 20255210 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025592 AMAQI
14th Jul 2025593 AMAQI
27°C24/32°C
14th Jul 2025584 AMAQI
14th Jul 2025575 AMAQI
14th Jul 2025576 AMAQI
14th Jul 2025577 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025349 AMAQI
14th Jul 20252110 AMAQI
14th Jul 20252011 AMAQI
14th Jul 20252412 PMAQI
14th Jul 2025241 PMAQI
14th Jul 2025232 PMAQI
14th Jul 2025253 PMAQI
14th Jul 2025304 PMAQI
14th Jul 2025285 PMAQI
14th Jul 2025256 PMAQI
14th Jul 2025287 PMAQI
14th Jul 2025318 PMAQI
14th Jul 2025469 PMAQI
14th Jul 20254510 PMAQI
14th Jul 20254811 PMAQI
15th Jul 20254912 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025562 AMAQI
15th Jul 2025563 AMAQI
27°C25/30°C
15th Jul 2025564 AMAQI
15th Jul 2025535 AMAQI
15th Jul 2025536 AMAQI
15th Jul 2025537 AMAQI
15th Jul 2025548 AMAQI
15th Jul 2025409 AMAQI
15th Jul 20253010 AMAQI
15th Jul 20252611 AMAQI
15th Jul 20253212 PMAQI
15th Jul 2025381 PMAQI
15th Jul 2025342 PMAQI
15th Jul 2025433 PMAQI
15th Jul 2025394 PMAQI
15th Jul 2025275 PMAQI
15th Jul 2025316 PMAQI
15th Jul 2025327 PMAQI
15th Jul 2025288 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20254310 PMAQI
15th Jul 20254411 PMAQI
16th Jul 20254612 AMAQI
16th Jul 2025501 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025543 AMAQI
27°C26/29°C
16th Jul 2025544 AMAQI
16th Jul 2025525 AMAQI
16th Jul 2025526 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025528 AMAQI
16th Jul 2025539 AMAQI
16th Jul 20254910 AMAQI
16th Jul 20253411 AMAQI
16th Jul 20252712 PMAQI
16th Jul 2025261 PMAQI
16th Jul 2025262 PMAQI
16th Jul 2025253 PMAQI
16th Jul 2025254 PMAQI
16th Jul 2025275 PMAQI
16th Jul 2025266 PMAQI
16th Jul 2025237 PMAQI
16th Jul 2025308 PMAQI
16th Jul 2025439 PMAQI
16th Jul 20254010 PMAQI
16th Jul 20254011 PMAQI
17th Jul 20254212 AMAQI
17th Jul 2025481 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025523 AMAQI
28°C26/30°C
17th Jul 2025514 AMAQI
17th Jul 2025505 AMAQI
17th Jul 2025496 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025508 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20253010 AMAQI
17th Jul 20253811 AMAQI
17th Jul 20253512 PMAQI
17th Jul 2025371 PMAQI
17th Jul 2025352 PMAQI
17th Jul 2025343 PMAQI
17th Jul 2025354 PMAQI
17th Jul 2025335 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025357 PMAQI
17th Jul 2025418 PMAQI
17th Jul 2025459 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254411 PMAQI
18th Jul 20254412 AMAQI
18th Jul 2025481 AMAQI
18th Jul 2025502 AMAQI
18th Jul 2025503 AMAQI
29°C27/32°C
18th Jul 2025484 AMAQI
18th Jul 2025465 AMAQI
18th Jul 2025466 AMAQI
18th Jul 2025467 AMAQI
18th Jul 2025468 AMAQI
18th Jul 2025329 AMAQI
18th Jul 20252710 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20252712 PMAQI
18th Jul 2025291 PMAQI
18th Jul 2025312 PMAQI
18th Jul 2025313 PMAQI
18th Jul 2025344 PMAQI
18th Jul 2025315 PMAQI
18th Jul 2025286 PMAQI
18th Jul 2025257 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025389 PMAQI
18th Jul 20254010 PMAQI
18th Jul 20253911 PMAQI
19th Jul 20253912 AMAQI
19th Jul 2025421 AMAQI
19th Jul 2025472 AMAQI
19th Jul 2025473 AMAQI
29°C26/32°C
19th Jul 2025464 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025436 AMAQI
19th Jul 2025437 AMAQI
19th Jul 2025438 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252110 AMAQI
19th Jul 20252211 AMAQI
19th Jul 20252812 PMAQI
19th Jul 2025271 PMAQI
19th Jul 2025262 PMAQI
19th Jul 2025273 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025245 PMAQI
19th Jul 2025226 PMAQI
19th Jul 2025247 PMAQI
19th Jul 2025288 PMAQI
19th Jul 2025359 PMAQI
19th Jul 20253610 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253512 AMAQI
20th Jul 2025381 AMAQI
20th Jul 2025442 AMAQI
20th Jul 2025443 AMAQI
29°C26/33°C
20th Jul 2025424 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025319 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252512 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025332 PMAQI
20th Jul 2025333 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025325 PMAQI
20th Jul 2025296 PMAQI
20th Jul 2025297 PMAQI
20th Jul 2025328 PMAQI
20th Jul 2025369 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025371 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025403 AMAQI
30°C27/34°C
21st Jul 2025394 AMAQI
21st Jul 2025385 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025378 AMAQI
21st Jul 2025269 AMAQI
21st Jul 20252910 AMAQI
21st Jul 20253711 AMAQI
21st Jul 20254312 PMAQI
21st Jul 2025461 PMAQI
21st Jul 2025462 PMAQI
21st Jul 2025403 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025415 PMAQI
21st Jul 2025356 PMAQI
21st Jul 2025367 PMAQI
21st Jul 2025358 PMAQI
21st Jul 2025339 PMAQI
21st Jul 20253310 PMAQI
21st Jul 20253411 PMAQI
22nd Jul 20253312 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025383 AMAQI
31°C28/35°C
22nd Jul 2025384 AMAQI
22nd Jul 2025385 AMAQI
22nd Jul 2025386 AMAQI
22nd Jul 2025387 AMAQI
22nd Jul 2025388 AMAQI
22nd Jul 2025319 AMAQI
22nd Jul 20253510 AMAQI
22nd Jul 20254211 AMAQI
22nd Jul 20254812 PMAQI
22nd Jul 2025521 PMAQI
22nd Jul 2025532 PMAQI
22nd Jul 2025563 PMAQI
22nd Jul 2025544 PMAQI
22nd Jul 2025475 PMAQI
22nd Jul 2025396 PMAQI
22nd Jul 2025357 PMAQI
22nd Jul 2025308 PMAQI
22nd Jul 2025329 PMAQI
22nd Jul 20253110 PMAQI
22nd Jul 20253211 PMAQI
23rd Jul 20253212 AMAQI
23rd Jul 2025361 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI
31°C28/35°C
23rd Jul 2025384 AMAQI
23rd Jul 2025395 AMAQI
23rd Jul 2025396 AMAQI
23rd Jul 2025397 AMAQI
23rd Jul 2025398 AMAQI
23rd Jul 2025329 AMAQI
23rd Jul 20254210 AMAQI
23rd Jul 20254911 AMAQI
23rd Jul 20255512 PMAQI
23rd Jul 2025551 PMAQI
23rd Jul 2025572 PMAQI
23rd Jul 2025573 PMAQI
23rd Jul 2025554 PMAQI
23rd Jul 2025535 PMAQI
23rd Jul 2025486 PMAQI
23rd Jul 2025437 PMAQI
23rd Jul 2025378 PMAQI
23rd Jul 2025339 PMAQI
23rd Jul 20253510 PMAQI
23rd Jul 20253211 PMAQI
24th Jul 20253212 AMAQI
24th Jul 2025361 AMAQI
24th Jul 2025382 AMAQI
24th Jul 2025383 AMAQI
31°C28/35°C
24th Jul 2025384 AMAQI
24th Jul 2025415 AMAQI
24th Jul 2025406 AMAQI
24th Jul 2025417 AMAQI
24th Jul 2025418 AMAQI
24th Jul 2025439 AMAQI
24th Jul 20255010 AMAQI
24th Jul 20255711 AMAQI
24th Jul 20256212 PMAQI
24th Jul 2025601 PMAQI
24th Jul 2025652 PMAQI
24th Jul 2025673 PMAQI
24th Jul 2025624 PMAQI
24th Jul 2025605 PMAQI
24th Jul 2025516 PMAQI
24th Jul 2025387 PMAQI
24th Jul 2025328 PMAQI
24th Jul 2025349 PMAQI
24th Jul 20253610 PMAQI
24th Jul 20253711 PMAQI
25th Jul 20253612 AMAQI
25th Jul 2025361 AMAQI
25th Jul 2025372 AMAQI
25th Jul 2025383 AMAQI
32°C28/36°C
25th Jul 2025404 AMAQI
25th Jul 2025435 AMAQI
25th Jul 2025446 AMAQI
25th Jul 2025437 AMAQI
25th Jul 2025438 AMAQI
25th Jul 2025449 AMAQI
25th Jul 20255210 AMAQI
25th Jul 20255511 AMAQI
25th Jul 20255812 PMAQI
25th Jul 2025571 PMAQI
25th Jul 2025532 PMAQI
25th Jul 2025463 PMAQI
25th Jul 2025444 PMAQI
25th Jul 2025365 PMAQI
25th Jul 2025326 PMAQI
25th Jul 2025277 PMAQI
25th Jul 2025278 PMAQI
25th Jul 2025339 PMAQI
25th Jul 20253210 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253212 AMAQI
26th Jul 2025361 AMAQI
26th Jul 2025412 AMAQI
26th Jul 2025403 AMAQI
32°C29/36°C
26th Jul 2025414 AMAQI
26th Jul 2025445 AMAQI
26th Jul 2025446 AMAQI
26th Jul 2025457 AMAQI
26th Jul 2025448 AMAQI
26th Jul 2025409 AMAQI
26th Jul 20254810 AMAQI
26th Jul 20255711 AMAQI
26th Jul 20256012 PMAQI
26th Jul 2025541 PMAQI
26th Jul 2025492 PMAQI
26th Jul 2025503 PMAQI
26th Jul 2025444 PMAQI
26th Jul 2025325 PMAQI
26th Jul 2025246 PMAQI
26th Jul 2025317 PMAQI
26th Jul 2025338 PMAQI
26th Jul 2025349 PMAQI
26th Jul 20253510 PMAQI
26th Jul 20253411 PMAQI
27th Jul 20253212 AMAQI
27th Jul 2025351 AMAQI
27th Jul 2025382 AMAQI
27th Jul 2025393 AMAQI
32°C29/36°C
27th Jul 2025404 AMAQI
27th Jul 2025435 AMAQI
27th Jul 2025426 AMAQI
27th Jul 2025437 AMAQI
27th Jul 2025438 AMAQI
27th Jul 2025359 AMAQI
27th Jul 20253510 AMAQI
27th Jul 20255211 AMAQI
27th Jul 20255412 PMAQI
27th Jul 2025501 PMAQI
27th Jul 2025422 PMAQI
27th Jul 2025383 PMAQI
27th Jul 2025344 PMAQI
27th Jul 2025295 PMAQI
27th Jul 2025256 PMAQI
27th Jul 2025227 PMAQI
27th Jul 2025238 PMAQI
27th Jul 2025309 PMAQI
27th Jul 20252910 PMAQI
27th Jul 20252911 PMAQI
28th Jul 20253112 AMAQI
28th Jul 2025341 AMAQI
28th Jul 2025382 AMAQI
28th Jul 2025393 AMAQI
31°C29/36°C
28th Jul 2025384 AMAQI
28th Jul 2025405 AMAQI
28th Jul 2025406 AMAQI
28th Jul 2025407 AMAQI
28th Jul 2025408 AMAQI
28th Jul 2025309 AMAQI
28th Jul 20253210 AMAQI
28th Jul 20254411 AMAQI
28th Jul 20255212 PMAQI
28th Jul 2025531 PMAQI
28th Jul 2025562 PMAQI
28th Jul 2025583 PMAQI
28th Jul 2025614 PMAQI
28th Jul 2025585 PMAQI
28th Jul 2025546 PMAQI
28th Jul 2025547 PMAQI
28th Jul 2025488 PMAQI
28th Jul 2025389 PMAQI
28th Jul 20253510 PMAQI
28th Jul 20253411 PMAQI
29th Jul 20253512 AMAQI
29th Jul 2025361 AMAQI
29th Jul 2025372 AMAQI
29th Jul 2025363 AMAQI
32°C28/37°C
29th Jul 2025384 AMAQI
29th Jul 2025405 AMAQI
29th Jul 2025406 AMAQI
29th Jul 2025407 AMAQI
29th Jul 2025398 AMAQI
29th Jul 2025289 AMAQI
29th Jul 20253210 AMAQI
29th Jul 20254111 AMAQI
29th Jul 20254712 PMAQI
29th Jul 2025481 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025524 PMAQI
29th Jul 2025445 PMAQI
29th Jul 2025346 PMAQI
29th Jul 2025287 PMAQI
29th Jul 2025278 PMAQI
29th Jul 2025319 PMAQI
29th Jul 20252710 PMAQI
29th Jul 20252811 PMAQI
30th Jul 20252812 AMAQI
30th Jul 2025321 AMAQI
30th Jul 2025382 AMAQI
30th Jul 2025383 AMAQI
32°C28/38°C
30th Jul 2025384 AMAQI
30th Jul 2025385 AMAQI
30th Jul 2025386 AMAQI
30th Jul 2025387 AMAQI
30th Jul 2025388 AMAQI
30th Jul 2025229 AMAQI
30th Jul 20251910 AMAQI
30th Jul 20252211 AMAQI
30th Jul 20253112 PMAQI
30th Jul 2025351 PMAQI
30th Jul 2025342 PMAQI
30th Jul 2025313 PMAQI
30th Jul 2025324 PMAQI
30th Jul 2025285 PMAQI
30th Jul 2025306 PMAQI
30th Jul 2025347 PMAQI
30th Jul 2025348 PMAQI
30th Jul 2025349 PMAQI
30th Jul 20253410 PMAQI
30th Jul 20253411 PMAQI
31st Jul 20253412 AMAQI
31st Jul 2025351 AMAQI
31st Jul 2025362 AMAQI
31st Jul 2025363 AMAQI
31°C27/36°C
31st Jul 2025364 AMAQI
31st Jul 2025365 AMAQI
31st Jul 2025366 AMAQI
31st Jul 2025367 AMAQI
31st Jul 2025368 AMAQI
31st Jul 2025369 AMAQI
31st Jul 20253610 AMAQI
31st Jul 20254211 AMAQI
31st Jul 20254012 PMAQI
31st Jul 2025391 PMAQI
31st Jul 2025362 PMAQI
31st Jul 2025343 PMAQI
31st Jul 2025324 PMAQI
31st Jul 2025325 PMAQI
31st Jul 2025256 PMAQI
31st Jul 2025207 PMAQI
31st Jul 2025258 PMAQI
31st Jul 2025289 PMAQI
31st Jul 20252910 PMAQI
31st Jul 20252711 PMAQI
1st Aug 20252612 AMAQI
1st Aug 2025291 AMAQI
1st Aug 2025332 AMAQI
1st Aug 2025343 AMAQI
29°C26/34°C
1st Aug 2025364 AMAQI
1st Aug 2025345 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025367 AMAQI
1st Aug 2025378 AMAQI
1st Aug 2025339 AMAQI
1st Aug 20253310 AMAQI
1st Aug 20254011 AMAQI
1st Aug 20254012 PMAQI
1st Aug 2025341 PMAQI
1st Aug 2025372 PMAQI
1st Aug 2025323 PMAQI
1st Aug 2025424 PMAQI
1st Aug 2025345 PMAQI
1st Aug 2025356 PMAQI
1st Aug 2025237 PMAQI
1st Aug 2025268 PMAQI
1st Aug 2025279 PMAQI
1st Aug 20252910 PMAQI
1st Aug 20252611 PMAQI
2nd Aug 20252812 AMAQI
2nd Aug 2025301 AMAQI
2nd Aug 2025372 AMAQI
2nd Aug 2025373 AMAQI
29°C26/32°C
2nd Aug 2025374 AMAQI
2nd Aug 2025385 AMAQI
2nd Aug 2025396 AMAQI
2nd Aug 2025377 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025319 AMAQI
2nd Aug 20253510 AMAQI
2nd Aug 20254411 AMAQI
2nd Aug 20254412 PMAQI
2nd Aug 2025491 PMAQI
2nd Aug 2025622 PMAQI
2nd Aug 2025593 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025555 PMAQI
2nd Aug 2025586 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025388 PMAQI
2nd Aug 2025379 PMAQI
2nd Aug 20253810 PMAQI
2nd Aug 20254411 PMAQI
3rd Aug 20253612 AMAQI
3rd Aug 2025351 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025373 AMAQI
31°C27/37°C
3rd Aug 2025404 AMAQI
3rd Aug 2025395 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025489 AMAQI
3rd Aug 20255410 AMAQI
3rd Aug 20255511 AMAQI
3rd Aug 20256212 PMAQI
3rd Aug 2025521 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025523 PMAQI
3rd Aug 2025494 PMAQI
3rd Aug 2025505 PMAQI
3rd Aug 2025516 PMAQI
3rd Aug 2025497 PMAQI
3rd Aug 2025468 PMAQI
3rd Aug 2025429 PMAQI
3rd Aug 20254410 PMAQI
3rd Aug 20254011 PMAQI
4th Aug 20253812 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025393 AMAQI
32°C28/37°C
4th Aug 2025424 AMAQI
4th Aug 2025435 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025427 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025629 AMAQI
4th Aug 20256910 AMAQI
4th Aug 20258311 AMAQI
4th Aug 20258112 PMAQI
4th Aug 2025901 PMAQI
4th Aug 2025982 PMAQI
4th Aug 2025873 PMAQI
4th Aug 2025864 PMAQI
4th Aug 2025875 PMAQI
4th Aug 2025806 PMAQI
4th Aug 2025757 PMAQI
4th Aug 2025688 PMAQI
4th Aug 2025609 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20254911 PMAQI
5th Aug 20256212 AMAQI
5th Aug 2025421 AMAQI
5th Aug 2025402 AMAQI
5th Aug 2025403 AMAQI
33°C30/37°C
5th Aug 2025504 AMAQI
5th Aug 2025545 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025527 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025569 AMAQI
5th Aug 20255910 AMAQI
5th Aug 20255911 AMAQI
5th Aug 20256212 PMAQI
5th Aug 2025571 PMAQI
5th Aug 2025552 PMAQI
5th Aug 2025533 PMAQI
5th Aug 2025604 PMAQI
5th Aug 2025565 PMAQI
5th Aug 2025546 PMAQI
5th Aug 2025507 PMAQI
5th Aug 2025488 PMAQI
5th Aug 2025499 PMAQI
5th Aug 20254810 PMAQI
5th Aug 20254711 PMAQI
6th Aug 20254612 AMAQI
6th Aug 2025491 AMAQI
6th Aug 2025502 AMAQI
6th Aug 2025483 AMAQI
34°C30/39°C
6th Aug 2025524 AMAQI
6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025549 AMAQI
6th Aug 20254810 AMAQI
6th Aug 20255111 AMAQI
6th Aug 20255712 PMAQI
6th Aug 2025541 PMAQI
6th Aug 2025592 PMAQI
6th Aug 2025553 PMAQI
6th Aug 2025564 PMAQI
6th Aug 2025625 PMAQI
6th Aug 2025576 PMAQI
6th Aug 2025597 PMAQI
6th Aug 2025548 PMAQI
6th Aug 2025489 PMAQI
6th Aug 20254910 PMAQI
6th Aug 20254811 PMAQI
7th Aug 20254712 AMAQI
7th Aug 2025481 AMAQI
7th Aug 2025522 AMAQI
7th Aug 2025503 AMAQI
33°C30/38°C
7th Aug 2025524 AMAQI
7th Aug 2025515 AMAQI
7th Aug 2025516 AMAQI
7th Aug 2025467 AMAQI
7th Aug 2025518 AMAQI
7th Aug 2025489 AMAQI
7th Aug 20254610 AMAQI
7th Aug 20254511 AMAQI
7th Aug 20253012 PMAQI
7th Aug 2025331 PMAQI
7th Aug 2025282 PMAQI
7th Aug 2025373 PMAQI
7th Aug 2025564 PMAQI
7th Aug 2025655 PMAQI
7th Aug 2025616 PMAQI
7th Aug 2025577 PMAQI
7th Aug 2025558 PMAQI
7th Aug 2025529 PMAQI
7th Aug 20255210 PMAQI
7th Aug 20255211 PMAQI
8th Aug 20255112 AMAQI
8th Aug 2025501 AMAQI
--°C/°C
4 AM
11 AM
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
48AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 AM - 10 AM
41AQI
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. 48), while the lowest AQI was between 9 AM to 10 AM (Avg. 41).
Night time
Avg. Highest Time
2 AM - 3 AM
47AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
7 PM - 8 PM
39AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 3 AM (Avg. 47), while the lowest AQI was between 7 PM to 8 PM (Avg. 39).
2025 Days Vs Air Quality
Oji, Kawaguchi, Saitama, Japan
2025
94%
204
6%
14
Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)
Good
204 DaysModerate
14 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 219 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Oji, Kawaguchi, 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
28AQI
28AQI
2nd January 2025
27AQI
27AQI
3rd January 2025
24AQI
24AQI
4th January 2025
25AQI
25AQI
5th January 2025
25AQI
25AQI
6th January 2025
31AQI
31AQI
7th January 2025
26AQI
26AQI
8th January 2025
26AQI
26AQI
9th January 2025
24AQI
24AQI
10th January 2025
25AQI
25AQI
11th January 2025
23AQI
23AQI
12th January 2025
27AQI
27AQI
13th January 2025
29AQI
29AQI
14th January 2025
27AQI
27AQI
15th January 2025
28AQI
28AQI
16th January 2025
24AQI
24AQI
17th January 2025
29AQI
29AQI
18th January 2025
26AQI
26AQI
19th January 2025
29AQI
29AQI
20th January 2025
30AQI
30AQI
21st January 2025
32AQI
32AQI
22nd January 2025
33AQI
33AQI
23rd January 2025
32AQI
32AQI
24th January 2025
35AQI
35AQI
25th January 2025
33AQI
33AQI
26th January 2025
32AQI
32AQI
27th January 2025
26AQI
26AQI
28th January 2025
28AQI
28AQI
29th January 2025
27AQI
27AQI
30th January 2025
28AQI
28AQI
31st January 2025
28AQI
28AQI
1st February 2025
28AQI
28AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
25AQI
25AQI
4th February 2025
29AQI
29AQI
5th February 2025
27AQI
27AQI
6th February 2025
27AQI
27AQI
7th February 2025
26AQI
26AQI
8th February 2025
28AQI
28AQI
9th February 2025
28AQI
28AQI
10th February 2025
26AQI
26AQI
11th February 2025
30AQI
30AQI
12th February 2025
28AQI
28AQI
13th February 2025
31AQI
31AQI
14th February 2025
29AQI
29AQI
15th February 2025
30AQI
30AQI
16th February 2025
32AQI
32AQI
17th February 2025
33AQI
33AQI
18th February 2025
29AQI
29AQI
19th February 2025
30AQI
30AQI
20th February 2025
29AQI
29AQI
21st February 2025
29AQI
29AQI
22nd February 2025
31AQI
31AQI
23rd February 2025
31AQI
31AQI
24th February 2025
32AQI
32AQI
25th February 2025
31AQI
31AQI
26th February 2025
35AQI
35AQI
27th February 2025
37AQI
37AQI
28th February 2025
39AQI
39AQI
1st March 2025
40AQI
40AQI
2nd March 2025
47AQI
47AQI
3rd March 2025
32AQI
32AQI
4th March 2025
32AQI
32AQI
5th March 2025
23AQI
23AQI
6th March 2025
30AQI
30AQI
7th March 2025
30AQI
30AQI
8th March 2025
32AQI
32AQI
9th March 2025
34AQI
34AQI
10th March 2025
33AQI
33AQI
11th March 2025
32AQI
32AQI
12th March 2025
36AQI
36AQI
13th March 2025
34AQI
34AQI
14th March 2025
28AQI
28AQI
15th March 2025
22AQI
22AQI
16th March 2025
19AQI
19AQI
17th March 2025
16AQI
16AQI
18th March 2025
17AQI
17AQI
19th March 2025
15AQI
15AQI
20th March 2025
17AQI
17AQI
21st March 2025
25AQI
25AQI
22nd March 2025
29AQI
29AQI
23rd March 2025
29AQI
29AQI
24th March 2025
28AQI
28AQI
25th March 2025
51AQI
51AQI
26th March 2025
65AQI
65AQI
27th March 2025
59AQI
59AQI
28th March 2025
39AQI
39AQI
29th March 2025
32AQI
32AQI
30th March 2025
37AQI
37AQI
31st March 2025
30AQI
30AQI
1st April 2025
24AQI
24AQI
2nd April 2025
21AQI
21AQI
3rd April 2025
18AQI
18AQI
4th April 2025
18AQI
18AQI
5th April 2025
18AQI
18AQI
6th April 2025
15AQI
15AQI
7th April 2025
16AQI
16AQI
8th April 2025
18AQI
18AQI
9th April 2025
17AQI
17AQI
10th April 2025
22AQI
22AQI
11th April 2025
24AQI
24AQI
12th April 2025
22AQI
22AQI
13th April 2025
19AQI
19AQI
14th April 2025
23AQI
23AQI
15th April 2025
21AQI
21AQI
16th April 2025
19AQI
19AQI
17th April 2025
25AQI
25AQI
18th April 2025
29AQI
29AQI
19th April 2025
35AQI
35AQI
20th April 2025
26AQI
26AQI
21st April 2025
25AQI
25AQI
22nd April 2025
22AQI
22AQI
23rd April 2025
18AQI
18AQI
24th April 2025
20AQI
20AQI
25th April 2025
21AQI
21AQI
26th April 2025
21AQI
21AQI
27th April 2025
21AQI
21AQI
28th April 2025
20AQI
20AQI
29th April 2025
16AQI
16AQI
30th April 2025
19AQI
19AQI
1st May 2025
19AQI
19AQI
2nd May 2025
18AQI
18AQI
3rd May 2025
19AQI
19AQI
4th May 2025
25AQI
25AQI
5th May 2025
20AQI
20AQI
6th May 2025
18AQI
18AQI
7th May 2025
16AQI
16AQI
8th May 2025
18AQI
18AQI
9th May 2025
18AQI
18AQI
10th May 2025
15AQI
15AQI
11th May 2025
16AQI
16AQI
12th May 2025
15AQI
15AQI
13th May 2025
19AQI
19AQI
14th May 2025
18AQI
18AQI
15th May 2025
20AQI
20AQI
16th May 2025
21AQI
21AQI
17th May 2025
18AQI
18AQI
18th May 2025
22AQI
22AQI
19th May 2025
25AQI
25AQI
20th May 2025
37AQI
37AQI
21st May 2025
34AQI
34AQI
22nd May 2025
26AQI
26AQI
23rd May 2025
24AQI
24AQI
24th May 2025
22AQI
22AQI
25th May 2025
18AQI
18AQI
26th May 2025
18AQI
18AQI
27th May 2025
17AQI
17AQI
28th May 2025
16AQI
16AQI
29th May 2025
19AQI
19AQI
30th May 2025
17AQI
17AQI
31st May 2025
14AQI
14AQI
1st June 2025
14AQI
14AQI
2nd June 2025
18AQI
18AQI
3rd June 2025
18AQI
18AQI
4th June 2025
17AQI
17AQI
5th June 2025
21AQI
21AQI
6th June 2025
23AQI
23AQI
7th June 2025
24AQI
24AQI
8th June 2025
28AQI
28AQI
9th June 2025
24AQI
24AQI
10th June 2025
25AQI
25AQI
11th June 2025
23AQI
23AQI
12th June 2025
26AQI
26AQI
13th June 2025
26AQI
26AQI
14th June 2025
22AQI
22AQI
15th June 2025
23AQI
23AQI
16th June 2025
22AQI
22AQI
17th June 2025
41AQI
41AQI
18th June 2025
38AQI
38AQI
19th June 2025
29AQI
29AQI
20th June 2025
24AQI
24AQI
21st June 2025
20AQI
20AQI
22nd June 2025
13AQI
13AQI
23rd June 2025
13AQI
13AQI
24th June 2025
15AQI
15AQI
25th June 2025
15AQI
15AQI
26th June 2025
15AQI
15AQI
27th June 2025
20AQI
20AQI
28th June 2025
19AQI
19AQI
29th June 2025
21AQI
21AQI
30th June 2025
39AQI
39AQI
1st July 2025
41AQI
41AQI
2nd July 2025
46AQI
46AQI
3rd July 2025
44AQI
44AQI
4th July 2025
48AQI
48AQI
5th July 2025
53AQI
53AQI
6th July 2025
66AQI
66AQI
7th July 2025
80AQI
80AQI
8th July 2025
78AQI
78AQI
9th July 2025
82AQI
82AQI
10th July 2025
61AQI
61AQI
11th July 2025
48AQI
48AQI
12th July 2025
51AQI
51AQI
13th July 2025
52AQI
52AQI
14th July 2025
41AQI
41AQI
15th July 2025
42AQI
42AQI
16th July 2025
40AQI
40AQI
17th July 2025
42AQI
42AQI
18th July 2025
37AQI
37AQI
19th July 2025
34AQI
34AQI
20th July 2025
34AQI
34AQI
21st July 2025
37AQI
37AQI
22nd July 2025
39AQI
39AQI
23rd July 2025
42AQI
42AQI
24th July 2025
45AQI
45AQI
25th July 2025
40AQI
40AQI
26th July 2025
40AQI
40AQI
27th July 2025
36AQI
36AQI
28th July 2025
43AQI
43AQI
29th July 2025
37AQI
37AQI
30th July 2025
33AQI
33AQI
31st July 2025
33AQI
33AQI
1st August 2025
32AQI
32AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
45AQI
45AQI
4th August 2025
61AQI
61AQI
5th August 2025
52AQI
52AQI
6th August 2025
52AQI
52AQI
28AQI
30AQI
32AQI
21AQI
20AQI
23AQI
47AQI
47AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202529AQI
31
28
28
3
30
31
30
23
8
3
3
204
14
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
May20AQI
202433AQI
29
2
29
30
1
29
1
30
1
30
24
7
29
2
28
2
30
1
27
3
31
346
20
Highest AQI recorded in
July41AQI
Lowest AQI recorded in
September25AQI
202330AQI
30
1
27
1
27
4
24
6
29
2
29
1
28
3
31
30
31
27
2
31
344
20
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
August19AQI
202233AQI
27
4
18
3
30
1
28
2
24
7
18
12
20
3
1
28
31
30
30
1
285
33
Highest AQI recorded in
June46AQI
Lowest AQI recorded in
August21AQI
202121AQI
30
1
28
31
30
30
1
28
2
31
29
2
30
30
1
30
31
358
7
Highest AQI recorded in
June31AQI
Lowest AQI recorded in
February11AQI
202014AQI
13
21
18
30
31
31
19
31
30
31
255
Highest AQI recorded in
March20AQI
Lowest AQI recorded in
September10AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2024(Avg.)
33AQILeast Polluted Year Recorded
2020(Avg.)
14AQIOji's annual 2025 AQI (29) shows an average percentage change of 23.1% (worsened AQI) compared to previous years: 2020 (14), 2021 (21), 2022 (33), 2023 (30), 2024 (33).
