Chuocho, Daiwanishi, Hyogo, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Chuocho, Daiwanishi, Hyogo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 38 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Chuocho, Daiwanishi, Hyogo, Japan
5 AM4th Oct 2025
6 PM
4 AM5th Oct 2025
AQI
AQI
55AQI
30AQI
In the last 24 hours,
Chuocho's AQI reached its highest point of 55 at 12 AM during the Night, while the lowest point, 30, was recorded at 4 PM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Chuocho, Daiwanishi, Hyogo, Japan
26°C24/29°C
27°C22/33°C
28°C25/32°C
29°C26/32°C
29°C26/33°C
28°C25/33°C
26°C24/30°C
27°C24/30°C
27°C24/30°C
28°C25/32°C
29°C26/33°C
29°C25/33°C
29°C26/33°C
27°C24/31°C
25°C22/29°C
25°C23/28°C
24°C20/27°C
22°C18/27°C
23°C21/25°C
24°C22/27°C
24°C22/28°C
25°C22/30°C
23°C19/28°C
23°C19/29°C
24°C20/27°C
23°C18/27°C
23°C19/27°C
22°C18/27°C
21°C20/23°C
--°C/°C
--°C/°C
38AQI
31AQI
36AQI
36AQI
2025 Days Vs Air Quality
Chuocho, Daiwanishi, Hyogo, Japan
75%
208
25%
69
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 75%
Health Risk Level:
Low
In 2025, 75% of 277 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
Chuocho, Daiwanishi, Hyogo, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
39AQI
31AQI
32AQI
30AQI
33AQI
32AQI
30AQI
29AQI
24AQI
25AQI
39AQI
39AQI
50AQI
42AQI
39AQI
35AQI
32AQI
32AQI
41AQI
35AQI
54AQI
68AQI
59AQI
44AQI
39AQI
36AQI
36AQI
32AQI
39AQI
71AQI
66AQI
45AQI
52AQI
39AQI
39AQI
33AQI
37AQI
30AQI
28AQI
29AQI
28AQI
41AQI
30AQI
40AQI
28AQI
49AQI
37AQI
36AQI
30AQI
28AQI
28AQI
31AQI
32AQI
31AQI
32AQI
40AQI
62AQI
62AQI
65AQI
79AQI
46AQI
45AQI
31AQI
39AQI
31AQI
37AQI
34AQI
38AQI
29AQI
36AQI
46AQI
42AQI
35AQI
23AQI
32AQI
27AQI
29AQI
43AQI
55AQI
61AQI
70AQI
70AQI
69AQI
92AQI
61AQI
45AQI
41AQI
32AQI
35AQI
28AQI
30AQI
21AQI
25AQI
38AQI
39AQI
46AQI
47AQI
52AQI
55AQI
54AQI
52AQI
32AQI
50AQI
26AQI
45AQI
46AQI
58AQI
57AQI
48AQI
41AQI
47AQI
25AQI
27AQI
63AQI
54AQI
60AQI
45AQI
53AQI
61AQI
58AQI
39AQI
46AQI
37AQI
42AQI
23AQI
29AQI
28AQI
35AQI
28AQI
33AQI
49AQI
53AQI
57AQI
52AQI
48AQI
42AQI
47AQI
54AQI
63AQI
43AQI
35AQI
51AQI
39AQI
26AQI
29AQI
31AQI
31AQI
38AQI
35AQI
39AQI
43AQI
49AQI
29AQI
46AQI
48AQI
46AQI
54AQI
62AQI
46AQI
29AQI
36AQI
44AQI
46AQI
34AQI
36AQI
41AQI
41AQI
48AQI
53AQI
55AQI
51AQI
48AQI
44AQI
41AQI
38AQI
39AQI
50AQI
47AQI
48AQI
53AQI
58AQI
72AQI
83AQI
86AQI
89AQI
81AQI
72AQI
73AQI
80AQI
67AQI
61AQI
60AQI
56AQI
49AQI
53AQI
57AQI
44AQI
47AQI
42AQI
38AQI
35AQI
35AQI
37AQI
34AQI
31AQI
28AQI
27AQI
28AQI
34AQI
36AQI
38AQI
43AQI
44AQI
48AQI
60AQI
51AQI
53AQI
53AQI
48AQI
47AQI
45AQI
38AQI
36AQI
39AQI
43AQI
44AQI
43AQI
43AQI
45AQI
47AQI
45AQI
46AQI
44AQI
48AQI
56AQI
56AQI
55AQI
52AQI
53AQI
56AQI
56AQI
54AQI
42AQI
35AQI
37AQI
29AQI
23AQI
26AQI
33AQI
36AQI
37AQI
35AQI
29AQI
30AQI
27AQI
36AQI
39AQI
46AQI
53AQI
46AQI
41AQI
44AQI
37AQI
34AQI
37AQI
35AQI
33AQI
26AQI
23AQI
26AQI
30AQI
24AQI
35AQI
46AQI
47AQI
38AQI
39AQI
38AQI
46AQI
44AQI
41AQI
45AQI
53AQI
48AQI
34AQI
42AQI
No. of days
202543AQI
Highest AQI recorded in
July53AQI
Lowest AQI recorded in
September34AQI
202435AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
January30AQI
202336AQI
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
August32AQI
202236AQI
Highest AQI recorded in
May45AQI
Lowest AQI recorded in
August24AQI
202132AQI
Highest AQI recorded in
March36AQI
Lowest AQI recorded in
September29AQI
202032AQI
Highest AQI recorded in
August49AQI
Lowest AQI recorded in
October25AQI
Most & Least Polluted Years Over the Last 6 Years
Chuocho's annual 2025 AQI (43) shows an average percentage change of 25.8% (worsened AQI) compared to previous years: 2020 (32), 2021 (32), 2022 (36), 2023 (36), 2024 (35).