Hiroshima monthly weather averages

  • Average temperature

    The bar chart below shows the average monthly temperatures at Hiroshima

    Hiroshima average temperature chart
    Average monthly temperatures in Hiroshima
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 4.2 4.7 7.7 13.2 17.6 21.4 25.8 26.9 22.9 17.1 11.7 6.7
    °F 39.6 40.5 45.9 55.8 63.7 70.5 78.4 80.4 73.2 62.8 53.1 44.1

    Please note: these are the average temperatures taken over a 24 hour period so do not show daytime / night highs and lows. For more accurate daytime temperatures have a look at the temperature max / min chart below.

  • Average daily sunshine

    The bar chart below shows the average daily sunshine hours in Hiroshima

    Average daily sunshine Hiroshima
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 4.2 4.6 5.7 6.3 6.9 5.6 6.2 7.2 5.6 6 5.1 4.4
  • Day / night temperatures

    The graph below shows the daily range of temperatures for each month.

    Maximum and minimum daily temperatures in Hiroshima
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C 0.4 0.8 3.2 8.6 13.1 17.6 22.4 23.1 19 12.6 7.3 2.6
    Max °C 8 8.7 12.2 17.9 22.2 25.2 29.3 30.8 26.8 21.6 16.2 10.9
    Min °F 32.7 33.4 37.8 47.4 55.5 63.7 72.2 73.5 66.2 54.7 45.1 36.6
    Max °F 39.6 40.5 45.9 55.8 63.7 70.5 78.4 80.4 73.2 62.8 53.1 44.1
  • Average rainfall & rainy days

    The graph below shows the average rainfall and number of rainy days per month.

    Average monthly rainfall in Hiroshima
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 58 69 111 161 154 267 249 125 186 105 77 47
    inches 2.3 2.7 4.4 6.3 6.1 10.5 9.8 4.9 7.3 4.1 3 1.9
    Rainy days 19 18 18 15 14 17 17 14 16 13 13 17
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Hiroshima
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 16.1 14.9 14.8 15.9 18.3 21.5 24.8 27.1 25.9 23.3 20.9 18.3
    °F 60.9 58.7 58.6 60.7 65 70.7 76.6 80.8 78.6 73.9 69.6 64.9
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Hiroshima
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 11 11 10 9 8 8 8 8 8 9 10 10
    mph 7 7 6 6 5 5 5 5 5 6 6 7

    A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

  • Relative humidity

    The graph below shows the average rainfall.

    Average relative humidity in Hiroshima
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    68% 69% 68% 69% 72% 78% 80% 77% 76% 72% 71% 70%
Hiroshima

Other monthly averages

Hiroshima weather stats

Hiroshima weather statistics
Hottest month: August 26.9°C
Driest month: December 47mm
Sunniest month: August 7.2hrs
Coldest month: January 4.2°C
Wettest month: June 267mm
Warmest sea: August 27.1°C
Map showing location of Hiroshima (34.39627, 132.45937)

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