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
Miyoshi, Hiroshima, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 47 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Aug - 21st Aug 2025
Miyoshi, Hiroshima, Japan
5 AM20th Aug 2025
7 PM
4 AM21st Aug 2025
53AQI
47AQI
48AQI
42AQI
In the last 24 hours,
Miyoshi's AQI reached its highest point of 53 at 4 PM during the Day, while the lowest point, 42, was recorded at 10 PM during the Night between 20th Aug and 21st Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Miyoshi, Hiroshima, Japan
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
28°C24/33°C
27°C23/34°C
27°C22/34°C
25°C21/31°C
22°C19/24°C
24°C22/25°C
23°C21/24°C
24°C22/25°C
25°C21/30°C
27°C23/33°C
27°C23/34°C
27°C22/33°C
26°C22/32°C
26°C22/32°C
26°C22/31°C
26°C22/31°C
--°C/°C
42AQI
34AQI
41AQI
41AQI
2025 Days Vs Air Quality
Miyoshi, Hiroshima, Japan
84%
195
16%
37
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 233 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
Miyoshi, Hiroshima, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
25AQI
35AQI
28AQI
29AQI
24AQI
26AQI
27AQI
27AQI
27AQI
25AQI
25AQI
27AQI
31AQI
31AQI
35AQI
31AQI
28AQI
26AQI
37AQI
31AQI
37AQI
51AQI
58AQI
47AQI
42AQI
36AQI
32AQI
32AQI
30AQI
44AQI
42AQI
41AQI
32AQI
38AQI
33AQI
36AQI
31AQI
29AQI
30AQI
27AQI
29AQI
33AQI
28AQI
30AQI
37AQI
29AQI
35AQI
42AQI
33AQI
35AQI
30AQI
30AQI
34AQI
31AQI
34AQI
36AQI
38AQI
41AQI
41AQI
44AQI
45AQI
41AQI
36AQI
31AQI
33AQI
33AQI
36AQI
39AQI
42AQI
39AQI
40AQI
48AQI
30AQI
28AQI
19AQI
30AQI
22AQI
41AQI
40AQI
42AQI
57AQI
45AQI
45AQI
64AQI
71AQI
66AQI
46AQI
43AQI
42AQI
40AQI
40AQI
31AQI
24AQI
30AQI
28AQI
23AQI
24AQI
23AQI
30AQI
29AQI
32AQI
27AQI
24AQI
24AQI
20AQI
24AQI
26AQI
31AQI
27AQI
25AQI
20AQI
20AQI
14AQI
16AQI
55AQI
31AQI
40AQI
34AQI
36AQI
33AQI
49AQI
40AQI
46AQI
32AQI
34AQI
27AQI
27AQI
30AQI
36AQI
32AQI
41AQI
51AQI
46AQI
57AQI
56AQI
43AQI
45AQI
38AQI
58AQI
59AQI
47AQI
40AQI
40AQI
30AQI
24AQI
24AQI
36AQI
26AQI
44AQI
38AQI
39AQI
44AQI
51AQI
28AQI
42AQI
43AQI
46AQI
45AQI
65AQI
62AQI
36AQI
36AQI
51AQI
44AQI
41AQI
30AQI
28AQI
27AQI
33AQI
44AQI
48AQI
49AQI
61AQI
52AQI
49AQI
47AQI
51AQI
55AQI
49AQI
47AQI
55AQI
59AQI
76AQI
76AQI
98AQI
84AQI
75AQI
70AQI
69AQI
65AQI
72AQI
62AQI
58AQI
57AQI
48AQI
48AQI
51AQI
51AQI
43AQI
37AQI
34AQI
31AQI
31AQI
32AQI
41AQI
30AQI
28AQI
26AQI
32AQI
29AQI
39AQI
42AQI
43AQI
44AQI
47AQI
57AQI
50AQI
48AQI
46AQI
46AQI
37AQI
33AQI
32AQI
34AQI
39AQI
45AQI
50AQI
48AQI
45AQI
47AQI
48AQI
47AQI
33AQI
34AQI
41AQI
28AQI
40AQI
45AQI
51AQI
44AQI
No. of days
202539AQI
Highest AQI recorded in
July51AQI
Lowest AQI recorded in
April28AQI
202432AQI
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
December25AQI
202336AQI
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
December30AQI
202236AQI
Highest AQI recorded in
May46AQI
Lowest AQI recorded in
December28AQI
202135AQI
Highest AQI recorded in
June45AQI
Lowest AQI recorded in
December30AQI
202036AQI
Highest AQI recorded in
August51AQI
Lowest AQI recorded in
September27AQI
Most & Least Polluted Years Over the Last 6 Years
Miyoshi's annual 2025 AQI (39) shows an average percentage change of 12.7% (worsened AQI) compared to previous years: 2020 (36), 2021 (35), 2022 (36), 2023 (36), 2024 (32).