Omachi, Oakashicho, 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
Omachi, Oakashicho, Hyogo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (12th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 37 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Aug - 14th Aug 2025
Omachi, Oakashicho, Hyogo, Japan
5 AM13th Aug 2025
7 PM
4 AM14th Aug 2025
AQI
AQI
55AQI
30AQI
In the last 24 hours,
Omachi's AQI reached its highest point of 55 at 4 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 13th Aug and 14th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Omachi, Oakashicho, Hyogo, Japan
26°C24/28°C
27°C26/29°C
25°C22/26°C
26°C25/29°C
27°C25/29°C
27°C25/30°C
28°C26/30°C
28°C26/31°C
28°C26/31°C
28°C26/31°C
28°C26/31°C
28°C26/31°C
28°C26/31°C
28°C26/31°C
29°C26/32°C
29°C26/32°C
29°C27/33°C
30°C27/33°C
30°C26/34°C
29°C26/33°C
28°C27/30°C
29°C27/31°C
30°C27/32°C
29°C25/31°C
27°C25/31°C
26°C25/28°C
26°C25/26°C
27°C25/29°C
26°C24/26°C
--°C/°C
--°C/°C
42AQI
37AQI
43AQI
40AQI
2025 Days Vs Air Quality
Omachi, Oakashicho, Hyogo, Japan
63%
142
36%
81
0.4%
1
Total number of days with different AQI categories in last 225 days in 2025 (140 days remaining)
Under WHO’s Safe Air Quality Limits: 63%
Health Risk Level:
Moderate
In 2025, 63% of 225 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
Omachi, Oakashicho, Hyogo, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI
40AQI
32AQI
32AQI
33AQI
41AQI
33AQI
33AQI
31AQI
26AQI
30AQI
39AQI
39AQI
51AQI
42AQI
40AQI
33AQI
34AQI
39AQI
54AQI
42AQI
63AQI
77AQI
70AQI
47AQI
42AQI
36AQI
38AQI
32AQI
42AQI
70AQI
72AQI
45AQI
55AQI
40AQI
41AQI
33AQI
37AQI
30AQI
31AQI
32AQI
29AQI
42AQI
31AQI
45AQI
29AQI
58AQI
40AQI
40AQI
33AQI
33AQI
31AQI
34AQI
35AQI
34AQI
37AQI
40AQI
68AQI
70AQI
90AQI
104AQI
56AQI
49AQI
34AQI
39AQI
35AQI
39AQI
37AQI
44AQI
37AQI
48AQI
56AQI
50AQI
39AQI
27AQI
40AQI
35AQI
29AQI
47AQI
55AQI
65AQI
69AQI
74AQI
69AQI
87AQI
64AQI
49AQI
45AQI
35AQI
38AQI
37AQI
38AQI
25AQI
31AQI
39AQI
44AQI
50AQI
52AQI
57AQI
59AQI
59AQI
56AQI
39AQI
53AQI
30AQI
46AQI
49AQI
57AQI
62AQI
51AQI
48AQI
50AQI
42AQI
32AQI
63AQI
60AQI
64AQI
55AQI
54AQI
65AQI
60AQI
43AQI
53AQI
42AQI
46AQI
27AQI
34AQI
33AQI
44AQI
34AQI
38AQI
52AQI
57AQI
61AQI
56AQI
54AQI
49AQI
54AQI
58AQI
61AQI
38AQI
38AQI
50AQI
37AQI
27AQI
30AQI
37AQI
31AQI
43AQI
34AQI
40AQI
47AQI
50AQI
32AQI
51AQI
49AQI
53AQI
57AQI
66AQI
53AQI
36AQI
45AQI
56AQI
53AQI
43AQI
37AQI
51AQI
43AQI
53AQI
57AQI
61AQI
51AQI
43AQI
40AQI
36AQI
36AQI
39AQI
54AQI
57AQI
54AQI
57AQI
63AQI
77AQI
69AQI
78AQI
87AQI
72AQI
71AQI
77AQI
86AQI
67AQI
57AQI
57AQI
52AQI
43AQI
53AQI
56AQI
38AQI
43AQI
37AQI
35AQI
32AQI
34AQI
34AQI
30AQI
28AQI
28AQI
28AQI
28AQI
34AQI
38AQI
40AQI
45AQI
46AQI
48AQI
61AQI
50AQI
55AQI
47AQI
52AQI
51AQI
49AQI
39AQI
37AQI
42AQI
41AQI
51AQI
49AQI
44AQI
49AQI
51AQI
48AQI
No. of days
202547AQI
Highest AQI recorded in
March51AQI
Lowest AQI recorded in
February41AQI
202442AQI
Highest AQI recorded in
April53AQI
Lowest AQI recorded in
December33AQI
202348AQI
Highest AQI recorded in
April59AQI
Lowest AQI recorded in
August34AQI
202246AQI
Highest AQI recorded in
March59AQI
Lowest AQI recorded in
October36AQI
202144AQI
Highest AQI recorded in
March51AQI
Lowest AQI recorded in
August38AQI
202050AQI
Highest AQI recorded in
August61AQI
Lowest AQI recorded in
September43AQI
Most & Least Polluted Years Over the Last 6 Years
Omachi's annual 2025 AQI (47) shows an average percentage change of 2.09% (worsened AQI) compared to previous years: 2020 (50), 2021 (44), 2022 (46), 2023 (48), 2024 (42).