Weather in Hiroshima in May
May in Hiroshima is mild with average temperatures around 16.6°C (61.9°F). Expect significant rainfall with 146mm across approximately 10 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
22.0°C
71.6°F
Low
11.1°C
52.0°F
Precipitation
146 mm
5.8 inches
~10 rainy days
Conditions
Humidity
79%
Comparison to Adjacent Months
May is 5.0°C warmer than April, 21mm wetter than April.
May is 4.2°C cooler than June, 65mm drier than June.