Climate in Hiroshima (Hiroshima), Japan

The graphs below show the monthly weather averages over the year.

Average day and night temperature

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

Average min and max temperatures in Hiroshima, Japan   Copyright © 2022  weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in Hiroshima, Japan   Copyright © 2022  weather-and-climate.com

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Daily percent of sunshine

The mean percent of sunhours during the day over the year

Average percent of sunshine in Hiroshima, Japan   Copyright © 2022  weather-and-climate.com

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Monthly precipitation

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

Average precipitation (rain/snow) in Hiroshima, Japan   Copyright © 2022  weather-and-climate.com

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Monthly rainy days

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

Average rainy days (rain/snow) in Hiroshima, Japan   Copyright © 2022  weather-and-climate.com

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Average humidity

The mean monthly relative humidity over the year

Average relative humidity in Hiroshima, Japan   Copyright © 2022  weather-and-climate.com

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Average wind speed

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

Average wind speed in Hiroshima, Japan   Copyright © 2022  weather-and-climate.com

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Weather Forecasts for Hiroshima (Hiroshima)

MON Jan 24
10°C | 1°C
Patchy rain possible

Patchy rain possible

TUE Jan 25
9°C | 0°C
Sunny

Sunny

WED Jan 26
12°C | 2°C
Partly cloudy

Partly cloudy

The best time of year to visit Hiroshima in Japan

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).

Other facts from our historical climate data:
  • Which months have the greatest rainfall in Hiroshima?
    Most rainfall (rainy season) is seen in April, May, June, July and September.
  • Which is the warmest month in Hiroshima?
    August has an average maximum temperature of 30.0°C (86°F) and is the warmest month of the year.
  • Which is the coldest month in Hiroshima?
    The coldest month is January with an average maximum temperature of 8.0°C (46.4°F).
  • Which is the wettest month in Hiroshima?
    June tops the wettest month list with 272mm (10.7in) of rainfall.
  • Which is the driest month in Hiroshima?
    December is the driest month with 39mm (1.5in) of precipitation.
  • Which is the sunniest month in Hiroshima?
    August is the sunniest month with an average of 213 hours of sunshine.

  • 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.