Weather in Hiroshima in August
August in Hiroshima is warm with average temperatures around 25.7°C (78.3°F). Expect significant rainfall with 123mm across approximately 11 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
29.7°C
85.5°F
Low
21.7°C
71.1°F
Precipitation
123 mm
4.8 inches
~11 rainy days
Conditions
Humidity
83%
Comparison to Adjacent Months
August is 137mm drier than July.
August is 4.0°C warmer than September, 47mm drier than September.