Mihara, 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
Mihara, Hiroshima, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 36 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Mihara, Hiroshima, Japan
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
AQI
AQI
44AQI
26AQI
In the last 24 hours,
Mihara's AQI reached its highest point of 44 at 12 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Mihara, Hiroshima, Japan
27°C23/32°C
27°C22/33°C
28°C22/33°C
28°C24/33°C
28°C24/33°C
28°C23/34°C
28°C24/32°C
27°C23/32°C
28°C24/32°C
24°C21/26°C
25°C20/30°C
26°C22/31°C
26°C23/31°C
25°C23/28°C
26°C23/31°C
27°C23/32°C
27°C24/32°C
27°C23/32°C
27°C23/33°C
28°C23/33°C
28°C24/33°C
28°C24/33°C
28°C23/33°C
28°C23/33°C
28°C23/34°C
29°C24/34°C
28°C24/33°C
29°C24/34°C
29°C24/35°C
--°C/°C
--°C/°C
52AQI
30AQI
52AQI
41AQI
2025 Days Vs Air Quality
Mihara, Hiroshima, Japan
84%
179
16%
34
0.4%
1
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 215 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
Mihara, Hiroshima, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
32AQI
28AQI
26AQI
26AQI
24AQI
27AQI
25AQI
27AQI
25AQI
26AQI
27AQI
31AQI
33AQI
34AQI
29AQI
27AQI
26AQI
38AQI
28AQI
36AQI
50AQI
60AQI
50AQI
44AQI
37AQI
31AQI
31AQI
30AQI
41AQI
38AQI
44AQI
34AQI
39AQI
33AQI
34AQI
30AQI
29AQI
30AQI
28AQI
29AQI
31AQI
30AQI
31AQI
35AQI
29AQI
34AQI
38AQI
32AQI
33AQI
30AQI
31AQI
34AQI
32AQI
34AQI
33AQI
36AQI
44AQI
51AQI
51AQI
94AQI
50AQI
48AQI
32AQI
39AQI
33AQI
38AQI
40AQI
40AQI
45AQI
41AQI
52AQI
31AQI
29AQI
20AQI
32AQI
19AQI
36AQI
39AQI
37AQI
60AQI
43AQI
42AQI
58AQI
69AQI
76AQI
44AQI
41AQI
38AQI
39AQI
42AQI
33AQI
23AQI
29AQI
26AQI
22AQI
20AQI
18AQI
27AQI
27AQI
26AQI
29AQI
23AQI
24AQI
19AQI
21AQI
22AQI
27AQI
24AQI
24AQI
18AQI
19AQI
15AQI
15AQI
49AQI
31AQI
36AQI
31AQI
27AQI
30AQI
49AQI
36AQI
46AQI
31AQI
33AQI
26AQI
24AQI
25AQI
36AQI
30AQI
38AQI
50AQI
42AQI
57AQI
55AQI
49AQI
43AQI
38AQI
57AQI
59AQI
51AQI
40AQI
36AQI
30AQI
23AQI
25AQI
37AQI
27AQI
48AQI
37AQI
38AQI
43AQI
52AQI
27AQI
45AQI
44AQI
44AQI
41AQI
63AQI
60AQI
32AQI
29AQI
52AQI
47AQI
47AQI
30AQI
26AQI
25AQI
28AQI
40AQI
46AQI
49AQI
64AQI
53AQI
49AQI
47AQI
50AQI
54AQI
49AQI
49AQI
55AQI
53AQI
76AQI
80AQI
102AQI
91AQI
76AQI
68AQI
71AQI
67AQI
74AQI
60AQI
58AQI
55AQI
47AQI
47AQI
49AQI
50AQI
41AQI
39AQI
32AQI
30AQI
28AQI
31AQI
40AQI
29AQI
26AQI
22AQI
32AQI
29AQI
35AQI
43AQI
39AQI
36AQI
33AQI
34AQI
44AQI
26AQI
39AQI
45AQI
51AQI
38AQI
No. of days
202539AQI
Highest AQI recorded in
July51AQI
Lowest AQI recorded in
April26AQI
202438AQI
Highest AQI recorded in
April52AQI
Lowest AQI recorded in
December26AQI
202342AQI
Highest AQI recorded in
June50AQI
Lowest AQI recorded in
August36AQI
202241AQI
Highest AQI recorded in
May54AQI
Lowest AQI recorded in
August21AQI
202141AQI
Highest AQI recorded in
June52AQI
Lowest AQI recorded in
December31AQI
202043AQI
Highest AQI recorded in
August57AQI
Lowest AQI recorded in
September35AQI
Most & Least Polluted Years Over the Last 6 Years
Mihara's annual 2025 AQI (39) shows an average percentage change of -5.1% (improved AQI) compared to previous years: 2020 (43), 2021 (41), 2022 (41), 2023 (42), 2024 (38).