Mibu, Miyoshi, Hiroshima, 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
Mibu, Miyoshi, Hiroshima, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (4th 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 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Mibu, Miyoshi, Hiroshima, Japan
5 AM4th Aug 2025
7 PM
4 AM5th Aug 2025
78AQI
44AQI
62AQI
43AQI
In the last 24 hours,
Mibu's AQI reached its highest point of 78 at 2 PM during the Day, while the lowest point, 43, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Mibu, Miyoshi, Hiroshima, Japan
27°C20/34°C
27°C20/34°C
27°C24/32°C
27°C22/33°C
28°C22/34°C
27°C22/32°C
27°C23/32°C
27°C23/32°C
24°C19/26°C
24°C19/29°C
24°C19/30°C
25°C21/30°C
23°C21/25°C
25°C21/31°C
26°C21/31°C
26°C22/32°C
27°C22/32°C
27°C21/34°C
27°C22/33°C
27°C22/34°C
27°C22/34°C
27°C22/34°C
27°C22/34°C
27°C22/34°C
27°C22/34°C
28°C22/35°C
28°C22/34°C
28°C22/37°C
27°C22/35°C
27°C23/32°C
--°C/°C
50AQI
29AQI
51AQI
43AQI
2025 Days Vs Air Quality
Mibu, Miyoshi, Hiroshima, Japan
84%
181
16%
34
0.4%
1
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 217 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
Mibu, Miyoshi, Hiroshima, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
38AQI
29AQI
29AQI
24AQI
26AQI
28AQI
26AQI
27AQI
24AQI
25AQI
27AQI
32AQI
30AQI
36AQI
32AQI
28AQI
26AQI
38AQI
31AQI
37AQI
52AQI
59AQI
47AQI
42AQI
36AQI
33AQI
32AQI
30AQI
45AQI
39AQI
40AQI
31AQI
37AQI
32AQI
36AQI
30AQI
30AQI
29AQI
28AQI
29AQI
35AQI
27AQI
30AQI
38AQI
29AQI
36AQI
43AQI
34AQI
36AQI
30AQI
31AQI
35AQI
32AQI
35AQI
37AQI
37AQI
41AQI
38AQI
43AQI
45AQI
40AQI
36AQI
31AQI
33AQI
33AQI
37AQI
40AQI
43AQI
41AQI
42AQI
51AQI
30AQI
29AQI
19AQI
31AQI
21AQI
42AQI
40AQI
41AQI
58AQI
44AQI
44AQI
64AQI
73AQI
63AQI
47AQI
44AQI
43AQI
40AQI
40AQI
33AQI
24AQI
31AQI
28AQI
22AQI
23AQI
20AQI
27AQI
25AQI
27AQI
24AQI
21AQI
23AQI
18AQI
22AQI
26AQI
27AQI
24AQI
22AQI
18AQI
18AQI
13AQI
14AQI
54AQI
29AQI
40AQI
34AQI
34AQI
31AQI
49AQI
41AQI
47AQI
30AQI
32AQI
25AQI
25AQI
29AQI
37AQI
33AQI
43AQI
52AQI
44AQI
58AQI
56AQI
39AQI
45AQI
35AQI
59AQI
59AQI
41AQI
42AQI
37AQI
30AQI
23AQI
23AQI
38AQI
25AQI
46AQI
39AQI
41AQI
45AQI
52AQI
28AQI
42AQI
45AQI
46AQI
43AQI
65AQI
65AQI
38AQI
36AQI
50AQI
40AQI
39AQI
30AQI
27AQI
27AQI
30AQI
43AQI
47AQI
47AQI
61AQI
52AQI
48AQI
46AQI
51AQI
55AQI
47AQI
46AQI
55AQI
57AQI
78AQI
82AQI
105AQI
88AQI
76AQI
70AQI
71AQI
66AQI
72AQI
61AQI
58AQI
58AQI
48AQI
48AQI
49AQI
51AQI
42AQI
33AQI
30AQI
27AQI
27AQI
26AQI
39AQI
25AQI
23AQI
23AQI
33AQI
26AQI
41AQI
42AQI
44AQI
44AQI
48AQI
50AQI
33AQI
34AQI
42AQI
26AQI
39AQI
45AQI
51AQI
47AQI
No. of days
202539AQI
Highest AQI recorded in
July51AQI
Lowest AQI recorded in
April26AQI
202430AQI
Highest AQI recorded in
April37AQI
Lowest AQI recorded in
January23AQI
202336AQI
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
December25AQI
202235AQI
Highest AQI recorded in
May45AQI
Lowest AQI recorded in
December27AQI
202134AQI
Highest AQI recorded in
June45AQI
Lowest AQI recorded in
December30AQI
202034AQI
Highest AQI recorded in
August49AQI
Lowest AQI recorded in
September22AQI
Most & Least Polluted Years Over the Last 6 Years
Mibu's annual 2025 AQI (39) shows an average percentage change of 15.5% (worsened AQI) compared to previous years: 2020 (34), 2021 (34), 2022 (35), 2023 (36), 2024 (30).