Hiraiso, 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
Hiraiso, Oakashicho, Hyogo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (10th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 48 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Aug - 12th Aug 2025
Hiraiso, Oakashicho, Hyogo, Japan
5 AM11th Aug 2025
7 PM
4 AM12th Aug 2025
AQI
AQI
48AQI
23AQI
In the last 24 hours,
Hiraiso's AQI reached its highest point of 48 at 5 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 11th Aug and 12th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hiraiso, Oakashicho, Hyogo, Japan
27°C25/30°C
26°C24/28°C
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
--°C/°C
--°C/°C
44AQI
36AQI
43AQI
41AQI
2025 Days Vs Air Quality
Hiraiso, Oakashicho, Hyogo, Japan
64%
143
36%
79
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 64%
Health Risk Level:
Moderate
In 2025, 64% of 223 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
Hiraiso, Oakashicho, Hyogo, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI
38AQI
31AQI
32AQI
31AQI
40AQI
33AQI
32AQI
30AQI
25AQI
29AQI
37AQI
38AQI
50AQI
42AQI
39AQI
33AQI
33AQI
37AQI
52AQI
42AQI
63AQI
75AQI
70AQI
47AQI
42AQI
35AQI
37AQI
31AQI
41AQI
67AQI
71AQI
44AQI
54AQI
40AQI
40AQI
33AQI
36AQI
30AQI
30AQI
32AQI
29AQI
41AQI
30AQI
43AQI
28AQI
56AQI
39AQI
39AQI
32AQI
32AQI
30AQI
33AQI
34AQI
33AQI
35AQI
38AQI
66AQI
69AQI
90AQI
98AQI
55AQI
48AQI
33AQI
40AQI
34AQI
38AQI
36AQI
43AQI
36AQI
47AQI
55AQI
48AQI
37AQI
26AQI
39AQI
33AQI
29AQI
46AQI
54AQI
65AQI
68AQI
74AQI
68AQI
84AQI
63AQI
48AQI
43AQI
35AQI
37AQI
36AQI
38AQI
25AQI
31AQI
37AQI
42AQI
50AQI
51AQI
56AQI
58AQI
59AQI
55AQI
39AQI
53AQI
31AQI
46AQI
49AQI
56AQI
62AQI
51AQI
48AQI
49AQI
42AQI
33AQI
63AQI
59AQI
63AQI
55AQI
53AQI
65AQI
59AQI
44AQI
52AQI
42AQI
46AQI
28AQI
34AQI
31AQI
43AQI
35AQI
38AQI
52AQI
56AQI
60AQI
56AQI
54AQI
49AQI
53AQI
57AQI
60AQI
37AQI
38AQI
49AQI
37AQI
28AQI
31AQI
37AQI
32AQI
43AQI
33AQI
40AQI
47AQI
49AQI
33AQI
51AQI
49AQI
52AQI
56AQI
65AQI
53AQI
38AQI
45AQI
55AQI
53AQI
44AQI
37AQI
50AQI
43AQI
54AQI
57AQI
60AQI
51AQI
43AQI
41AQI
36AQI
36AQI
40AQI
54AQI
57AQI
54AQI
56AQI
61AQI
75AQI
70AQI
73AQI
86AQI
72AQI
70AQI
77AQI
85AQI
68AQI
58AQI
57AQI
53AQI
45AQI
53AQI
56AQI
40AQI
43AQI
37AQI
35AQI
32AQI
34AQI
32AQI
29AQI
27AQI
28AQI
27AQI
26AQI
32AQI
35AQI
39AQI
45AQI
45AQI
46AQI
59AQI
49AQI
54AQI
47AQI
52AQI
50AQI
48AQI
41AQI
40AQI
50AQI
49AQI
44AQI
49AQI
50AQI
50AQI
No. of days
202546AQI
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
February40AQI
202440AQI
Highest AQI recorded in
April49AQI
Lowest AQI recorded in
December32AQI
202347AQI
Highest AQI recorded in
April57AQI
Lowest AQI recorded in
August32AQI
202245AQI
Highest AQI recorded in
March59AQI
Lowest AQI recorded in
October31AQI
202143AQI
Highest AQI recorded in
May49AQI
Lowest AQI recorded in
August37AQI
202050AQI
Highest AQI recorded in
August61AQI
Lowest AQI recorded in
October44AQI
Most & Least Polluted Years Over the Last 6 Years
Hiraiso's annual 2025 AQI (46) shows an average percentage change of 3.2% (worsened AQI) compared to previous years: 2020 (50), 2021 (43), 2022 (45), 2023 (47), 2024 (40).