Climate in Hiroshima (Hiroshima), Japan

The graphs below show the monthly weather averages over the year.
* Data from weather station: Hiroshima, Japan.

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Daily percent of sunshine

The mean percent of sunhours during the day over the year

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Inches

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average humidity

The mean monthly relative humidity over the year

Average wind speed

The mean monthly wind speed over the year (in meters per second)

Weather Forecasts for Hiroshima (Hiroshima)

TUE Sep 21
27°C | 19°C

Partly cloudy

WED Sep 22
29°C | 20°C

Moderate rain

THU Sep 23
29°C | 18°C

Partly cloudy

The best time of year to visit Hiroshima in Japan

Here are some average weather facts we collected from our historical climate data:

  • During the month of May, June and October you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F).
  • On average, the warmest month(s) are July and August.
  • The months of March, April, May, August, September and October have a high chance of precipitation.
  • The warmest month is August with an average maximum temperature of 30°C (86°F).
  • The coldest month is January with an average maximum temperature of 8°C (46°F).
  • June is the most wet month. This month should be avoided if you are not a big fan of rain.
  • December is the driest month.
  • August is the most sunny month.
No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.