Asahi, Aioi, Hyogo, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Asahi, Aioi, Hyogo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (6th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 50 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Asahi, Aioi, Hyogo, Japan
5 AM6th Aug 2025
7 PM
4 AM7th Aug 2025
58AQI
45AQI
58AQI
48AQI
In the last 24 hours,
Asahi's AQI reached its highest point of 58 at 7 PM during the Day, while the lowest point, 45, was recorded at 3 PM during the Day between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Asahi, Aioi, Hyogo, Japan
27°C25/30°C
27°C25/29°C
28°C26/31°C
27°C25/29°C
26°C24/28°C
26°C25/29°C
25°C23/26°C
25°C23/28°C
26°C24/28°C
24°C23/25°C
26°C25/27°C
26°C25/28°C
26°C25/28°C
26°C25/29°C
27°C25/28°C
27°C25/29°C
27°C25/29°C
27°C25/29°C
27°C25/29°C
27°C25/29°C
27°C25/29°C
28°C25/30°C
28°C25/30°C
28°C26/30°C
28°C25/30°C
28°C24/32°C
28°C24/31°C
28°C26/31°C
28°C26/30°C
29°C27/31°C
--°C/°C
51AQI
44AQI
50AQI
50AQI
2025 Days Vs Air Quality
Asahi, Aioi, Hyogo, Japan
63%
137
37%
81
Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)
Under WHO’s Safe Air Quality Limits: 63%
Health Risk Level:
Moderate
In 2025, 63% of 219 days were within WHO’s safe air quality limits, and 37% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Asahi, Aioi, Hyogo, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
42AQI
32AQI
34AQI
36AQI
44AQI
34AQI
33AQI
30AQI
28AQI
30AQI
37AQI
37AQI
50AQI
42AQI
43AQI
34AQI
34AQI
38AQI
48AQI
41AQI
66AQI
84AQI
69AQI
47AQI
41AQI
36AQI
37AQI
32AQI
46AQI
74AQI
73AQI
46AQI
50AQI
42AQI
41AQI
36AQI
40AQI
31AQI
30AQI
31AQI
31AQI
41AQI
31AQI
43AQI
29AQI
53AQI
39AQI
39AQI
32AQI
32AQI
31AQI
33AQI
34AQI
34AQI
36AQI
39AQI
67AQI
74AQI
89AQI
84AQI
54AQI
45AQI
34AQI
39AQI
35AQI
40AQI
39AQI
42AQI
39AQI
50AQI
51AQI
46AQI
35AQI
25AQI
33AQI
34AQI
33AQI
49AQI
60AQI
67AQI
69AQI
72AQI
71AQI
88AQI
67AQI
45AQI
48AQI
35AQI
41AQI
39AQI
36AQI
23AQI
33AQI
40AQI
44AQI
47AQI
52AQI
61AQI
63AQI
61AQI
57AQI
39AQI
51AQI
29AQI
47AQI
48AQI
60AQI
60AQI
54AQI
47AQI
49AQI
42AQI
32AQI
70AQI
57AQI
63AQI
55AQI
54AQI
62AQI
57AQI
41AQI
52AQI
37AQI
44AQI
26AQI
31AQI
29AQI
40AQI
34AQI
40AQI
52AQI
57AQI
61AQI
58AQI
52AQI
43AQI
52AQI
56AQI
69AQI
48AQI
40AQI
53AQI
41AQI
27AQI
34AQI
36AQI
38AQI
41AQI
39AQI
39AQI
46AQI
53AQI
33AQI
49AQI
48AQI
54AQI
57AQI
70AQI
60AQI
43AQI
51AQI
58AQI
57AQI
46AQI
40AQI
49AQI
45AQI
52AQI
56AQI
56AQI
53AQI
52AQI
49AQI
46AQI
47AQI
48AQI
56AQI
58AQI
56AQI
58AQI
61AQI
76AQI
88AQI
86AQI
85AQI
76AQI
74AQI
75AQI
83AQI
74AQI
68AQI
65AQI
60AQI
53AQI
55AQI
58AQI
49AQI
53AQI
45AQI
42AQI
40AQI
42AQI
40AQI
38AQI
32AQI
32AQI
29AQI
31AQI
39AQI
42AQI
42AQI
46AQI
45AQI
47AQI
60AQI
51AQI
50AQI
42AQI
41AQI
50AQI
49AQI
44AQI
52AQI
56AQI
50AQI
No. of days
202548AQI
Highest AQI recorded in
July56AQI
Lowest AQI recorded in
February41AQI
202438AQI
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
January30AQI
202338AQI
Highest AQI recorded in
April47AQI
Lowest AQI recorded in
August31AQI
202237AQI
Highest AQI recorded in
May46AQI
Lowest AQI recorded in
December31AQI
202136AQI
Highest AQI recorded in
May43AQI
Lowest AQI recorded in
January31AQI
202035AQI
Highest AQI recorded in
August55AQI
Lowest AQI recorded in
October28AQI
Most & Least Polluted Years Over the Last 6 Years
Asahi's annual 2025 AQI (48) shows an average percentage change of 30.2% (worsened AQI) compared to previous years: 2020 (35), 2021 (36), 2022 (37), 2023 (38), 2024 (38).