Chuo, Soja, Okayama, 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
Chuo, Soja, Okayama, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
20th Aug 2023
83AQILowest AQI recorded on
18th Aug 2021
21AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 45 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Chuo, Soja, Okayama, Japan
AQI
Day
Night
.
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
12PM3rd Aug
65AQI
Avg. Lowest Time
3AM4th Aug
41AQI
In the last 24 hours,
Chuo's AQI reached its highest point of 65 at 12 PM during the Night, while the lowest point, 41, was recorded at 3 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chuo, Soja, Okayama, Japan
JulAug
05th - 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 - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025875 AMAQI
5th Jul 2025876 AMAQI
5th Jul 2025857 AMAQI
5th Jul 2025868 AMAQI
5th Jul 20251029 AMAQI
5th Jul 202510010 AMAQI
5th Jul 20259111 AMAQI
5th Jul 20259012 PMAQI
5th Jul 2025911 PMAQI
5th Jul 2025922 PMAQI
5th Jul 2025953 PMAQI
5th Jul 2025934 PMAQI
5th Jul 2025935 PMAQI
5th Jul 2025926 PMAQI
5th Jul 2025917 PMAQI
5th Jul 2025928 PMAQI
5th Jul 2025909 PMAQI
5th Jul 20258910 PMAQI
5th Jul 20258811 PMAQI
6th Jul 20258812 AMAQI
6th Jul 2025881 AMAQI
6th Jul 2025862 AMAQI
6th Jul 2025873 AMAQI
6th Jul 2025884 AMAQI
28°C23/35°C
6th Jul 2025885 AMAQI
6th Jul 2025886 AMAQI
6th Jul 2025897 AMAQI
6th Jul 2025908 AMAQI
6th Jul 2025819 AMAQI
6th Jul 20257010 AMAQI
6th Jul 20256311 AMAQI
6th Jul 20255812 PMAQI
6th Jul 2025571 PMAQI
6th Jul 2025582 PMAQI
6th Jul 2025583 PMAQI
6th Jul 2025584 PMAQI
6th Jul 2025585 PMAQI
6th Jul 2025546 PMAQI
6th Jul 2025557 PMAQI
6th Jul 2025648 PMAQI
6th Jul 2025749 PMAQI
6th Jul 20257410 PMAQI
6th Jul 20257511 PMAQI
7th Jul 20257412 AMAQI
7th Jul 2025781 AMAQI
7th Jul 2025862 AMAQI
7th Jul 2025873 AMAQI
7th Jul 2025844 AMAQI
28°C23/35°C
7th Jul 2025825 AMAQI
7th Jul 2025826 AMAQI
7th Jul 2025827 AMAQI
7th Jul 2025828 AMAQI
7th Jul 2025529 AMAQI
7th Jul 20254910 AMAQI
7th Jul 20255611 AMAQI
7th Jul 20255812 PMAQI
7th Jul 2025631 PMAQI
7th Jul 2025672 PMAQI
7th Jul 2025703 PMAQI
7th Jul 2025814 PMAQI
7th Jul 2025885 PMAQI
7th Jul 2025926 PMAQI
7th Jul 2025927 PMAQI
7th Jul 2025828 PMAQI
7th Jul 2025759 PMAQI
7th Jul 20257510 PMAQI
7th Jul 20257611 PMAQI
8th Jul 20257412 AMAQI
8th Jul 2025771 AMAQI
8th Jul 2025822 AMAQI
8th Jul 2025823 AMAQI
8th Jul 2025804 AMAQI
29°C23/35°C
8th Jul 2025765 AMAQI
8th Jul 2025776 AMAQI
8th Jul 2025787 AMAQI
8th Jul 2025768 AMAQI
8th Jul 2025629 AMAQI
8th Jul 20256010 AMAQI
8th Jul 20256811 AMAQI
8th Jul 20256912 PMAQI
8th Jul 2025681 PMAQI
8th Jul 2025692 PMAQI
8th Jul 2025643 PMAQI
8th Jul 2025644 PMAQI
8th Jul 2025655 PMAQI
8th Jul 2025686 PMAQI
8th Jul 2025727 PMAQI
8th Jul 2025768 PMAQI
8th Jul 2025789 PMAQI
8th Jul 20257910 PMAQI
8th Jul 20257911 PMAQI
9th Jul 20258012 AMAQI
9th Jul 2025771 AMAQI
9th Jul 2025762 AMAQI
9th Jul 2025763 AMAQI
9th Jul 2025754 AMAQI
28°C24/34°C
9th Jul 2025745 AMAQI
9th Jul 2025746 AMAQI
9th Jul 2025747 AMAQI
9th Jul 2025748 AMAQI
9th Jul 2025919 AMAQI
9th Jul 202510010 AMAQI
9th Jul 20259811 AMAQI
9th Jul 20259712 PMAQI
9th Jul 2025941 PMAQI
9th Jul 2025912 PMAQI
9th Jul 2025903 PMAQI
9th Jul 2025924 PMAQI
9th Jul 2025945 PMAQI
9th Jul 2025936 PMAQI
9th Jul 2025917 PMAQI
9th Jul 2025888 PMAQI
9th Jul 2025819 PMAQI
9th Jul 20258210 PMAQI
9th Jul 20258211 PMAQI
10th Jul 20258212 AMAQI
10th Jul 2025791 AMAQI
10th Jul 2025752 AMAQI
10th Jul 2025753 AMAQI
10th Jul 2025764 AMAQI
28°C23/33°C
10th Jul 2025785 AMAQI
10th Jul 2025786 AMAQI
10th Jul 2025787 AMAQI
10th Jul 2025788 AMAQI
10th Jul 2025809 AMAQI
10th Jul 20258010 AMAQI
10th Jul 20258011 AMAQI
10th Jul 20258412 PMAQI
10th Jul 2025891 PMAQI
10th Jul 2025902 PMAQI
10th Jul 2025783 PMAQI
10th Jul 2025604 PMAQI
10th Jul 2025535 PMAQI
10th Jul 2025526 PMAQI
10th Jul 2025477 PMAQI
10th Jul 2025508 PMAQI
10th Jul 2025679 PMAQI
10th Jul 20256710 PMAQI
10th Jul 20256811 PMAQI
11th Jul 20257312 AMAQI
11th Jul 2025741 AMAQI
11th Jul 2025762 AMAQI
11th Jul 2025763 AMAQI
11th Jul 2025764 AMAQI
28°C23/34°C
11th Jul 2025765 AMAQI
11th Jul 2025776 AMAQI
11th Jul 2025777 AMAQI
11th Jul 2025778 AMAQI
11th Jul 2025689 AMAQI
11th Jul 20255910 AMAQI
11th Jul 20255611 AMAQI
11th Jul 20255512 PMAQI
11th Jul 2025551 PMAQI
11th Jul 2025552 PMAQI
11th Jul 2025523 PMAQI
11th Jul 2025504 PMAQI
11th Jul 2025485 PMAQI
11th Jul 2025416 PMAQI
11th Jul 2025337 PMAQI
11th Jul 2025458 PMAQI
11th Jul 2025619 PMAQI
11th Jul 20256210 PMAQI
11th Jul 20256211 PMAQI
12th Jul 20256212 AMAQI
12th Jul 2025671 AMAQI
12th Jul 2025732 AMAQI
12th Jul 2025733 AMAQI
12th Jul 2025724 AMAQI
27°C23/32°C
12th Jul 2025705 AMAQI
12th Jul 2025716 AMAQI
12th Jul 2025717 AMAQI
12th Jul 2025718 AMAQI
12th Jul 2025449 AMAQI
12th Jul 20253810 AMAQI
12th Jul 20254211 AMAQI
12th Jul 20254412 PMAQI
12th Jul 2025431 PMAQI
12th Jul 2025412 PMAQI
12th Jul 2025353 PMAQI
12th Jul 2025354 PMAQI
12th Jul 2025355 PMAQI
12th Jul 2025366 PMAQI
12th Jul 2025347 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025569 PMAQI
12th Jul 20255710 PMAQI
12th Jul 20255811 PMAQI
13th Jul 20255812 AMAQI
13th Jul 2025621 AMAQI
13th Jul 2025692 AMAQI
13th Jul 2025693 AMAQI
13th Jul 2025674 AMAQI
27°C22/33°C
13th Jul 2025655 AMAQI
13th Jul 2025656 AMAQI
13th Jul 2025647 AMAQI
13th Jul 2025658 AMAQI
13th Jul 2025489 AMAQI
13th Jul 20253210 AMAQI
13th Jul 20253611 AMAQI
13th Jul 20253612 PMAQI
13th Jul 2025391 PMAQI
13th Jul 2025372 PMAQI
13th Jul 2025363 PMAQI
13th Jul 2025344 PMAQI
13th Jul 2025325 PMAQI
13th Jul 2025316 PMAQI
13th Jul 2025327 PMAQI
13th Jul 2025448 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255510 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025591 AMAQI
14th Jul 2025652 AMAQI
14th Jul 2025643 AMAQI
14th Jul 2025624 AMAQI
27°C23/32°C
14th Jul 2025615 AMAQI
14th Jul 2025616 AMAQI
14th Jul 2025607 AMAQI
14th Jul 2025608 AMAQI
14th Jul 2025309 AMAQI
14th Jul 20251810 AMAQI
14th Jul 20251711 AMAQI
14th Jul 20251912 PMAQI
14th Jul 2025221 PMAQI
14th Jul 2025222 PMAQI
14th Jul 2025193 PMAQI
14th Jul 2025184 PMAQI
14th Jul 2025185 PMAQI
14th Jul 2025206 PMAQI
14th Jul 2025227 PMAQI
14th Jul 2025378 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20254811 PMAQI
15th Jul 20254912 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025602 AMAQI
15th Jul 2025603 AMAQI
15th Jul 2025594 AMAQI
24°C22/26°C
15th Jul 2025565 AMAQI
15th Jul 2025566 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025568 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20252210 AMAQI
15th Jul 20253011 AMAQI
15th Jul 20254612 PMAQI
15th Jul 2025521 PMAQI
15th Jul 2025482 PMAQI
15th Jul 2025423 PMAQI
15th Jul 2025434 PMAQI
15th Jul 2025455 PMAQI
15th Jul 2025456 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025528 PMAQI
15th Jul 2025579 PMAQI
15th Jul 20255810 PMAQI
15th Jul 20255811 PMAQI
16th Jul 20255812 AMAQI
16th Jul 2025571 AMAQI
16th Jul 2025562 AMAQI
16th Jul 2025573 AMAQI
16th Jul 2025554 AMAQI
25°C20/32°C
16th Jul 2025545 AMAQI
16th Jul 2025546 AMAQI
16th Jul 2025557 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025609 AMAQI
16th Jul 20256210 AMAQI
16th Jul 20256411 AMAQI
16th Jul 20256512 PMAQI
16th Jul 2025661 PMAQI
16th Jul 2025602 PMAQI
16th Jul 2025613 PMAQI
16th Jul 2025644 PMAQI
16th Jul 2025655 PMAQI
16th Jul 2025686 PMAQI
16th Jul 2025647 PMAQI
16th Jul 2025638 PMAQI
16th Jul 2025609 PMAQI
16th Jul 20255910 PMAQI
16th Jul 20255811 PMAQI
17th Jul 20255612 AMAQI
17th Jul 2025561 AMAQI
17th Jul 2025562 AMAQI
17th Jul 2025563 AMAQI
17th Jul 2025564 AMAQI
27°C22/33°C
17th Jul 2025575 AMAQI
17th Jul 2025576 AMAQI
17th Jul 2025577 AMAQI
17th Jul 2025578 AMAQI
17th Jul 2025389 AMAQI
17th Jul 20252610 AMAQI
17th Jul 20252511 AMAQI
17th Jul 20252112 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025192 PMAQI
17th Jul 2025193 PMAQI
17th Jul 2025184 PMAQI
17th Jul 2025185 PMAQI
17th Jul 2025206 PMAQI
17th Jul 2025197 PMAQI
17th Jul 2025288 PMAQI
17th Jul 2025419 PMAQI
17th Jul 20254210 PMAQI
17th Jul 20254311 PMAQI
18th Jul 20254212 AMAQI
18th Jul 2025481 AMAQI
18th Jul 2025562 AMAQI
18th Jul 2025563 AMAQI
18th Jul 2025544 AMAQI
25°C23/29°C
18th Jul 2025535 AMAQI
18th Jul 2025536 AMAQI
18th Jul 2025537 AMAQI
18th Jul 2025538 AMAQI
18th Jul 2025279 AMAQI
18th Jul 20252210 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20253012 PMAQI
18th Jul 2025311 PMAQI
18th Jul 2025322 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025334 PMAQI
18th Jul 2025325 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025337 PMAQI
18th Jul 2025408 PMAQI
18th Jul 2025439 PMAQI
18th Jul 20254410 PMAQI
18th Jul 20254211 PMAQI
19th Jul 20254212 AMAQI
19th Jul 2025471 AMAQI
19th Jul 2025532 AMAQI
19th Jul 2025533 AMAQI
19th Jul 2025514 AMAQI
26°C23/30°C
19th Jul 2025505 AMAQI
19th Jul 2025506 AMAQI
19th Jul 2025497 AMAQI
19th Jul 2025508 AMAQI
19th Jul 2025259 AMAQI
19th Jul 20252110 AMAQI
19th Jul 20252011 AMAQI
19th Jul 20251912 PMAQI
19th Jul 2025201 PMAQI
19th Jul 2025202 PMAQI
19th Jul 2025203 PMAQI
19th Jul 2025214 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025216 PMAQI
19th Jul 2025207 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253810 PMAQI
19th Jul 20253911 PMAQI
20th Jul 20253712 AMAQI
20th Jul 2025411 AMAQI
20th Jul 2025512 AMAQI
20th Jul 2025503 AMAQI
20th Jul 2025484 AMAQI
26°C22/31°C
20th Jul 2025455 AMAQI
20th Jul 2025456 AMAQI
20th Jul 2025457 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025339 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252211 AMAQI
20th Jul 20251912 PMAQI
20th Jul 2025171 PMAQI
20th Jul 2025182 PMAQI
20th Jul 2025203 PMAQI
20th Jul 2025264 PMAQI
20th Jul 2025255 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025288 PMAQI
20th Jul 2025349 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253312 AMAQI
21st Jul 2025361 AMAQI
21st Jul 2025452 AMAQI
21st Jul 2025453 AMAQI
21st Jul 2025434 AMAQI
27°C22/33°C
21st Jul 2025405 AMAQI
21st Jul 2025406 AMAQI
21st Jul 2025407 AMAQI
21st Jul 2025408 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252210 AMAQI
21st Jul 20252811 AMAQI
21st Jul 20253412 PMAQI
21st Jul 2025341 PMAQI
21st Jul 2025312 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025284 PMAQI
21st Jul 2025275 PMAQI
21st Jul 2025246 PMAQI
21st Jul 2025287 PMAQI
21st Jul 2025358 PMAQI
21st Jul 2025389 PMAQI
21st Jul 20253610 PMAQI
21st Jul 20253811 PMAQI
22nd Jul 20254012 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025403 AMAQI
22nd Jul 2025394 AMAQI
28°C23/34°C
22nd Jul 2025375 AMAQI
22nd Jul 2025386 AMAQI
22nd Jul 2025387 AMAQI
22nd Jul 2025388 AMAQI
22nd Jul 2025289 AMAQI
22nd Jul 20252410 AMAQI
22nd Jul 20253111 AMAQI
22nd Jul 20254212 PMAQI
22nd Jul 2025521 PMAQI
22nd Jul 2025522 PMAQI
22nd Jul 2025563 PMAQI
22nd Jul 2025644 PMAQI
22nd Jul 2025765 PMAQI
22nd Jul 2025706 PMAQI
22nd Jul 2025767 PMAQI
22nd Jul 2025628 PMAQI
22nd Jul 2025509 PMAQI
22nd Jul 20255310 PMAQI
22nd Jul 20255011 PMAQI
23rd Jul 20254912 AMAQI
23rd Jul 2025441 AMAQI
23rd Jul 2025392 AMAQI
23rd Jul 2025383 AMAQI
23rd Jul 2025384 AMAQI
28°C23/34°C
23rd Jul 2025395 AMAQI
23rd Jul 2025396 AMAQI
23rd Jul 2025397 AMAQI
23rd Jul 2025398 AMAQI
23rd Jul 2025319 AMAQI
23rd Jul 20252710 AMAQI
23rd Jul 20252611 AMAQI
23rd Jul 20252912 PMAQI
23rd Jul 2025331 PMAQI
23rd Jul 2025402 PMAQI
23rd Jul 2025413 PMAQI
23rd Jul 2025424 PMAQI
23rd Jul 2025385 PMAQI
23rd Jul 2025406 PMAQI
23rd Jul 2025437 PMAQI
23rd Jul 2025408 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254210 PMAQI
23rd Jul 20254211 PMAQI
24th Jul 20254212 AMAQI
24th Jul 2025391 AMAQI
24th Jul 2025402 AMAQI
24th Jul 2025403 AMAQI
24th Jul 2025404 AMAQI
28°C23/34°C
24th Jul 2025405 AMAQI
24th Jul 2025396 AMAQI
24th Jul 2025397 AMAQI
24th Jul 2025398 AMAQI
24th Jul 2025289 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20252711 AMAQI
24th Jul 20253112 PMAQI
24th Jul 2025381 PMAQI
24th Jul 2025472 PMAQI
24th Jul 2025443 PMAQI
24th Jul 2025354 PMAQI
24th Jul 2025265 PMAQI
24th Jul 2025286 PMAQI
24th Jul 2025277 PMAQI
24th Jul 2025298 PMAQI
24th Jul 2025329 PMAQI
24th Jul 20253110 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20252712 AMAQI
25th Jul 2025341 AMAQI
25th Jul 2025402 AMAQI
25th Jul 2025393 AMAQI
25th Jul 2025384 AMAQI
28°C23/34°C
25th Jul 2025385 AMAQI
25th Jul 2025386 AMAQI
25th Jul 2025397 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025229 AMAQI
25th Jul 20251810 AMAQI
25th Jul 20251811 AMAQI
25th Jul 20251812 PMAQI
25th Jul 2025191 PMAQI
25th Jul 2025192 PMAQI
25th Jul 2025183 PMAQI
25th Jul 2025174 PMAQI
25th Jul 2025185 PMAQI
25th Jul 2025196 PMAQI
25th Jul 2025207 PMAQI
25th Jul 2025238 PMAQI
25th Jul 2025289 PMAQI
25th Jul 20252810 PMAQI
25th Jul 20252711 PMAQI
26th Jul 20252512 AMAQI
26th Jul 2025281 AMAQI
26th Jul 2025362 AMAQI
26th Jul 2025373 AMAQI
26th Jul 2025344 AMAQI
28°C23/33°C
26th Jul 2025345 AMAQI
26th Jul 2025336 AMAQI
26th Jul 2025337 AMAQI
26th Jul 2025338 AMAQI
26th Jul 2025199 AMAQI
26th Jul 20251610 AMAQI
26th Jul 20252011 AMAQI
26th Jul 20252212 PMAQI
26th Jul 2025221 PMAQI
26th Jul 2025232 PMAQI
26th Jul 2025193 PMAQI
26th Jul 2025204 PMAQI
26th Jul 2025225 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025217 PMAQI
26th Jul 2025258 PMAQI
26th Jul 2025289 PMAQI
26th Jul 20252710 PMAQI
26th Jul 20252811 PMAQI
27th Jul 20252712 AMAQI
27th Jul 2025291 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025333 AMAQI
27th Jul 2025324 AMAQI
28°C24/33°C
27th Jul 2025305 AMAQI
27th Jul 2025306 AMAQI
27th Jul 2025307 AMAQI
27th Jul 2025308 AMAQI
27th Jul 2025249 AMAQI
27th Jul 20251710 AMAQI
27th Jul 20251711 AMAQI
27th Jul 20251612 PMAQI
27th Jul 2025151 PMAQI
27th Jul 2025202 PMAQI
27th Jul 2025223 PMAQI
27th Jul 2025214 PMAQI
27th Jul 2025215 PMAQI
27th Jul 2025206 PMAQI
27th Jul 2025207 PMAQI
27th Jul 2025228 PMAQI
27th Jul 2025269 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20252611 PMAQI
28th Jul 20252612 AMAQI
28th Jul 2025251 AMAQI
28th Jul 2025302 AMAQI
28th Jul 2025303 AMAQI
28th Jul 2025294 AMAQI
28°C23/34°C
28th Jul 2025285 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025287 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025199 AMAQI
28th Jul 20251810 AMAQI
28th Jul 20252111 AMAQI
28th Jul 20252412 PMAQI
28th Jul 2025251 PMAQI
28th Jul 2025262 PMAQI
28th Jul 2025243 PMAQI
28th Jul 2025264 PMAQI
28th Jul 2025275 PMAQI
28th Jul 2025286 PMAQI
28th Jul 2025257 PMAQI
28th Jul 2025268 PMAQI
28th Jul 2025279 PMAQI
28th Jul 20252710 PMAQI
28th Jul 20252711 PMAQI
29th Jul 20252712 AMAQI
29th Jul 2025271 AMAQI
29th Jul 2025272 AMAQI
29th Jul 2025273 AMAQI
29th Jul 2025274 AMAQI
28°C22/34°C
29th Jul 2025275 AMAQI
29th Jul 2025276 AMAQI
29th Jul 2025267 AMAQI
29th Jul 2025268 AMAQI
29th Jul 2025269 AMAQI
29th Jul 20253010 AMAQI
29th Jul 20253511 AMAQI
29th Jul 20253612 PMAQI
29th Jul 2025371 PMAQI
29th Jul 2025412 PMAQI
29th Jul 2025473 PMAQI
29th Jul 2025504 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025526 PMAQI
29th Jul 2025517 PMAQI
29th Jul 2025508 PMAQI
29th Jul 2025469 PMAQI
29th Jul 20254810 PMAQI
29th Jul 20254711 PMAQI
30th Jul 20254712 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025282 AMAQI
30th Jul 2025283 AMAQI
30th Jul 2025284 AMAQI
29°C23/35°C
30th Jul 2025295 AMAQI
30th Jul 2025296 AMAQI
30th Jul 2025307 AMAQI
30th Jul 2025298 AMAQI
30th Jul 2025439 AMAQI
30th Jul 20254410 AMAQI
30th Jul 20253711 AMAQI
30th Jul 20253412 PMAQI
30th Jul 2025341 PMAQI
30th Jul 2025462 PMAQI
30th Jul 2025533 PMAQI
30th Jul 2025574 PMAQI
30th Jul 2025555 PMAQI
30th Jul 2025576 PMAQI
30th Jul 2025617 PMAQI
30th Jul 2025578 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20255110 PMAQI
30th Jul 20255111 PMAQI
31st Jul 20255212 AMAQI
31st Jul 2025431 AMAQI
31st Jul 2025322 AMAQI
31st Jul 2025323 AMAQI
31st Jul 2025324 AMAQI
30°C24/36°C
31st Jul 2025325 AMAQI
31st Jul 2025326 AMAQI
31st Jul 2025327 AMAQI
31st Jul 2025328 AMAQI
31st Jul 2025329 AMAQI
31st Jul 20253210 AMAQI
31st Jul 20254711 AMAQI
31st Jul 20255312 PMAQI
31st Jul 2025541 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025643 PMAQI
31st Jul 2025704 PMAQI
31st Jul 2025765 PMAQI
31st Jul 2025726 PMAQI
31st Jul 2025717 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025439 PMAQI
31st Jul 20254110 PMAQI
31st Jul 20253311 PMAQI
1st Aug 20253312 AMAQI
1st Aug 2025321 AMAQI
1st Aug 2025292 AMAQI
1st Aug 2025303 AMAQI
1st Aug 2025334 AMAQI
30°C24/37°C
1st Aug 2025325 AMAQI
1st Aug 2025346 AMAQI
1st Aug 2025377 AMAQI
1st Aug 2025358 AMAQI
1st Aug 2025469 AMAQI
1st Aug 20254810 AMAQI
1st Aug 20254811 AMAQI
1st Aug 20255112 PMAQI
1st Aug 2025521 PMAQI
1st Aug 2025572 PMAQI
1st Aug 2025613 PMAQI
1st Aug 2025634 PMAQI
1st Aug 2025655 PMAQI
1st Aug 2025646 PMAQI
1st Aug 2025617 PMAQI
1st Aug 2025528 PMAQI
1st Aug 2025489 PMAQI
1st Aug 20254410 PMAQI
1st Aug 20254511 PMAQI
2nd Aug 20254012 AMAQI
2nd Aug 2025351 AMAQI
2nd Aug 2025342 AMAQI
2nd Aug 2025343 AMAQI
2nd Aug 2025364 AMAQI
30°C24/37°C
2nd Aug 2025375 AMAQI
2nd Aug 2025396 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025519 AMAQI
2nd Aug 20255310 AMAQI
2nd Aug 20255411 AMAQI
2nd Aug 20254912 PMAQI
2nd Aug 2025571 PMAQI
2nd Aug 2025602 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025584 PMAQI
2nd Aug 2025585 PMAQI
2nd Aug 2025526 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025508 PMAQI
2nd Aug 2025429 PMAQI
2nd Aug 20254010 PMAQI
2nd Aug 20254111 PMAQI
3rd Aug 20254412 AMAQI
3rd Aug 2025381 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025383 AMAQI
3rd Aug 2025404 AMAQI
29°C24/37°C
3rd Aug 2025435 AMAQI
3rd Aug 2025426 AMAQI
3rd Aug 2025427 AMAQI
3rd Aug 2025428 AMAQI
3rd Aug 2025489 AMAQI
3rd Aug 20254810 AMAQI
3rd Aug 20255611 AMAQI
3rd Aug 20256512 PMAQI
3rd Aug 2025531 PMAQI
3rd Aug 2025572 PMAQI
3rd Aug 2025553 PMAQI
3rd Aug 2025574 PMAQI
3rd Aug 2025515 PMAQI
3rd Aug 2025506 PMAQI
3rd Aug 2025487 PMAQI
3rd Aug 2025468 PMAQI
3rd Aug 2025499 PMAQI
3rd Aug 20255110 PMAQI
3rd Aug 20254511 PMAQI
4th Aug 20254812 AMAQI
4th Aug 2025421 AMAQI
4th Aug 2025412 AMAQI
4th Aug 2025413 AMAQI
4th Aug 2025444 AMAQI
--°C/°C
4th Aug 2025465 AMAQI
5 AM4th Aug 2025466 AMAQI
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
52AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
10 AM - 7 PM
45AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 52), while the lowest AQI was between 10 AM to 7 PM (Avg. 45).
Night time
Avg. Highest Time
12 AM - 4 AM
52AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
8 PM - 11 PM
50AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 52), while the lowest AQI was between 8 PM to 11 PM (Avg. 50).
2025 Days Vs Air Quality
Chuo, Soja, Okayama, Japan
2025
64%
137
35%
74
1%
3
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
137 DaysModerate
74 DaysPoor
3 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 64%
Health Risk Level:
Moderate
In 2025, 64% of 215 days were within WHO’s safe air quality limits, and 36% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Chuo, Soja, Okayama, 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
31AQI
31AQI
2nd January 2025
38AQI
38AQI
3rd January 2025
31AQI
31AQI
4th January 2025
31AQI
31AQI
5th January 2025
35AQI
35AQI
6th January 2025
46AQI
46AQI
7th January 2025
32AQI
32AQI
8th January 2025
36AQI
36AQI
9th January 2025
29AQI
29AQI
10th January 2025
28AQI
28AQI
11th January 2025
29AQI
29AQI
12th January 2025
30AQI
30AQI
13th January 2025
34AQI
34AQI
14th January 2025
49AQI
49AQI
15th January 2025
39AQI
39AQI
16th January 2025
37AQI
37AQI
17th January 2025
33AQI
33AQI
18th January 2025
37AQI
37AQI
19th January 2025
45AQI
45AQI
20th January 2025
49AQI
49AQI
21st January 2025
45AQI
45AQI
22nd January 2025
62AQI
62AQI
23rd January 2025
77AQI
77AQI
24th January 2025
70AQI
70AQI
25th January 2025
47AQI
47AQI
26th January 2025
43AQI
43AQI
27th January 2025
36AQI
36AQI
28th January 2025
38AQI
38AQI
29th January 2025
32AQI
32AQI
30th January 2025
44AQI
44AQI
31st January 2025
68AQI
68AQI
1st February 2025
69AQI
69AQI
2nd February 2025
44AQI
44AQI
3rd February 2025
51AQI
51AQI
4th February 2025
40AQI
40AQI
5th February 2025
39AQI
39AQI
6th February 2025
32AQI
32AQI
7th February 2025
36AQI
36AQI
8th February 2025
30AQI
30AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
31AQI
31AQI
12th February 2025
39AQI
39AQI
13th February 2025
31AQI
31AQI
14th February 2025
39AQI
39AQI
15th February 2025
30AQI
30AQI
16th February 2025
50AQI
50AQI
17th February 2025
40AQI
40AQI
18th February 2025
39AQI
39AQI
19th February 2025
34AQI
34AQI
20th February 2025
33AQI
33AQI
21st February 2025
31AQI
31AQI
22nd February 2025
32AQI
32AQI
23rd February 2025
32AQI
32AQI
24th February 2025
34AQI
34AQI
25th February 2025
38AQI
38AQI
26th February 2025
40AQI
40AQI
27th February 2025
62AQI
62AQI
28th February 2025
72AQI
72AQI
1st March 2025
105AQI
105AQI
2nd March 2025
105AQI
105AQI
3rd March 2025
60AQI
60AQI
4th March 2025
51AQI
51AQI
5th March 2025
35AQI
35AQI
6th March 2025
41AQI
41AQI
7th March 2025
35AQI
35AQI
8th March 2025
43AQI
43AQI
9th March 2025
42AQI
42AQI
10th March 2025
43AQI
43AQI
11th March 2025
43AQI
43AQI
12th March 2025
49AQI
49AQI
13th March 2025
52AQI
52AQI
14th March 2025
46AQI
46AQI
15th March 2025
37AQI
37AQI
16th March 2025
26AQI
26AQI
17th March 2025
35AQI
35AQI
18th March 2025
31AQI
31AQI
19th March 2025
38AQI
38AQI
20th March 2025
48AQI
48AQI
21st March 2025
56AQI
56AQI
22nd March 2025
64AQI
64AQI
23rd March 2025
67AQI
67AQI
24th March 2025
67AQI
67AQI
25th March 2025
72AQI
72AQI
26th March 2025
80AQI
80AQI
27th March 2025
79AQI
79AQI
28th March 2025
52AQI
52AQI
29th March 2025
49AQI
49AQI
30th March 2025
41AQI
41AQI
31st March 2025
44AQI
44AQI
1st April 2025
38AQI
38AQI
2nd April 2025
37AQI
37AQI
3rd April 2025
25AQI
25AQI
4th April 2025
37AQI
37AQI
5th April 2025
40AQI
40AQI
6th April 2025
49AQI
49AQI
7th April 2025
48AQI
48AQI
8th April 2025
51AQI
51AQI
9th April 2025
64AQI
64AQI
10th April 2025
61AQI
61AQI
11th April 2025
63AQI
63AQI
12th April 2025
54AQI
54AQI
13th April 2025
43AQI
43AQI
14th April 2025
50AQI
50AQI
15th April 2025
31AQI
31AQI
16th April 2025
49AQI
49AQI
17th April 2025
51AQI
51AQI
18th April 2025
62AQI
62AQI
19th April 2025
65AQI
65AQI
20th April 2025
61AQI
61AQI
21st April 2025
48AQI
48AQI
22nd April 2025
52AQI
52AQI
23rd April 2025
45AQI
45AQI
24th April 2025
36AQI
36AQI
25th April 2025
69AQI
69AQI
26th April 2025
62AQI
62AQI
27th April 2025
62AQI
62AQI
28th April 2025
52AQI
52AQI
29th April 2025
51AQI
51AQI
30th April 2025
61AQI
61AQI
1st May 2025
57AQI
57AQI
2nd May 2025
39AQI
39AQI
3rd May 2025
50AQI
50AQI
4th May 2025
40AQI
40AQI
5th May 2025
46AQI
46AQI
6th May 2025
34AQI
34AQI
7th May 2025
36AQI
36AQI
8th May 2025
30AQI
30AQI
9th May 2025
40AQI
40AQI
10th May 2025
34AQI
34AQI
11th May 2025
39AQI
39AQI
12th May 2025
52AQI
52AQI
13th May 2025
55AQI
55AQI
14th May 2025
64AQI
64AQI
15th May 2025
59AQI
59AQI
16th May 2025
57AQI
57AQI
17th May 2025
43AQI
43AQI
18th May 2025
48AQI
48AQI
19th May 2025
56AQI
56AQI
20th May 2025
66AQI
66AQI
21st May 2025
61AQI
61AQI
22nd May 2025
41AQI
41AQI
23rd May 2025
54AQI
54AQI
24th May 2025
42AQI
42AQI
25th May 2025
30AQI
30AQI
26th May 2025
33AQI
33AQI
27th May 2025
41AQI
41AQI
28th May 2025
43AQI
43AQI
29th May 2025
45AQI
45AQI
30th May 2025
40AQI
40AQI
31st May 2025
43AQI
43AQI
1st June 2025
49AQI
49AQI
2nd June 2025
64AQI
64AQI
3rd June 2025
35AQI
35AQI
4th June 2025
49AQI
49AQI
5th June 2025
49AQI
49AQI
6th June 2025
61AQI
61AQI
7th June 2025
64AQI
64AQI
8th June 2025
72AQI
72AQI
9th June 2025
56AQI
56AQI
10th June 2025
39AQI
39AQI
11th June 2025
49AQI
49AQI
12th June 2025
63AQI
63AQI
13th June 2025
61AQI
61AQI
14th June 2025
40AQI
40AQI
15th June 2025
39AQI
39AQI
16th June 2025
48AQI
48AQI
17th June 2025
42AQI
42AQI
18th June 2025
52AQI
52AQI
19th June 2025
55AQI
55AQI
20th June 2025
61AQI
61AQI
21st June 2025
60AQI
60AQI
22nd June 2025
61AQI
61AQI
23rd June 2025
51AQI
51AQI
24th June 2025
46AQI
46AQI
25th June 2025
46AQI
46AQI
26th June 2025
48AQI
48AQI
27th June 2025
58AQI
58AQI
28th June 2025
62AQI
62AQI
29th June 2025
62AQI
62AQI
30th June 2025
63AQI
63AQI
1st July 2025
64AQI
64AQI
2nd July 2025
90AQI
90AQI
3rd July 2025
89AQI
89AQI
4th July 2025
108AQI
108AQI
5th July 2025
90AQI
90AQI
6th July 2025
73AQI
73AQI
7th July 2025
77AQI
77AQI
8th July 2025
73AQI
73AQI
9th July 2025
85AQI
85AQI
10th July 2025
72AQI
72AQI
11th July 2025
62AQI
62AQI
12th July 2025
54AQI
54AQI
13th July 2025
50AQI
50AQI
14th July 2025
41AQI
41AQI
15th July 2025
50AQI
50AQI
16th July 2025
60AQI
60AQI
17th July 2025
39AQI
39AQI
18th July 2025
41AQI
41AQI
19th July 2025
35AQI
35AQI
20th July 2025
33AQI
33AQI
21st July 2025
35AQI
35AQI
22nd July 2025
48AQI
48AQI
23rd July 2025
39AQI
39AQI
24th July 2025
35AQI
35AQI
25th July 2025
27AQI
27AQI
26th July 2025
27AQI
27AQI
27th July 2025
25AQI
25AQI
28th July 2025
26AQI
26AQI
29th July 2025
37AQI
37AQI
30th July 2025
43AQI
43AQI
31st July 2025
47AQI
47AQI
1st August 2025
46AQI
46AQI
2nd August 2025
45AQI
45AQI
41AQI
40AQI
53AQI
51AQI
46AQI
54AQI
54AQI
46AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202548AQI
27
4
24
4
18
11
2
14
16
21
10
13
17
18
12
1
2
137
74
3
Highest AQI recorded in
July54AQI
Lowest AQI recorded in
February40AQI
202444AQI
16
15
24
5
23
8
14
15
1
16
15
18
12
21
10
19
12
21
9
28
3
24
6
31
255
110
1
Highest AQI recorded in
April55AQI
Lowest AQI recorded in
December34AQI
202348AQI
22
8
1
19
9
14
17
15
15
15
16
14
16
21
10
26
5
21
9
20
11
17
10
2
18
12
222
138
3
Highest AQI recorded in
April55AQI
Lowest AQI recorded in
August39AQI
202248AQI
22
9
16
5
15
16
13
17
9
22
15
15
17
7
1
2
1
24
5
22
9
18
12
28
3
201
121
1
Highest AQI recorded in
May56AQI
Lowest AQI recorded in
December37AQI
202145AQI
22
9
16
12
15
14
12
9
16
15
14
16
24
7
24
7
25
5
25
6
21
9
23
8
237
117
Highest AQI recorded in
June52AQI
Lowest AQI recorded in
August40AQI
202043AQI
7
6
13
8
10
8
22
8
28
3
16
11
4
18
1
24
7
21
9
21
10
180
71
4
Highest AQI recorded in
August61AQI
Lowest AQI recorded in
September30AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
48AQILeast Polluted Year Recorded
2020(Avg.)
43AQIChuo's annual 2025 AQI (48) shows an average percentage change of 6.1% (worsened AQI) compared to previous years: 2020 (43), 2021 (45), 2022 (48), 2023 (48), 2024 (44).
