Hamamatsu monthly weather averages

  • Average daytime temperature

    The bar chart below shows the average monthly peak daytime temperatures at Hamamatsu

    Hamamatsu average temperature chart
    Average monthly temperatures in Hamamatsu (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 9.7 10.4 13.5 18.7 22.6 25.3 28.7 30.5 27.4 22.5 17.6 12.3
    °F 49.4 50.7 56.4 65.7 72.6 77.6 83.7 87 81.3 72.4 63.7 54.1

    Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

  • Average rainfall & rainy days

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

    Average monthly rainfall in Hamamatsu (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 57 85 148 181 204 267 223 210 211 152 105 56
    inches 2.2 3.3 5.8 7.1 8 10.5 8.8 8.3 8.3 6 4.1 2.2
    Rainy days 11 12 15 16 14 18 18 15 18 15 11 10
  • Average daily sunshine

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

    Average daily sunshine Hamamatsu
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 6.7 6.5 6.5 6.1 6.7 5.1 5.8 7.2 5.4 5.5 5.8 6.5
  • Day / night temperatures

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

    Maximum and minimum daily temperatures in Hamamatsu (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C 1.8 2.2 4.9 10.5 14.7 18.9 22.8 23.9 20.7 14.8 9.4 4.1
    Max °C 9.9 10.6 13.8 18.9 22.8 25.5 28.9 30.7 27.6 22.7 17.8 12.5
    Min °F 35.2 36 40.7 50.9 58.4 66 73 75 69.2 58.6 48.9 39.4
    Max °F 42.4 43.5 48.7 58.5 65.7 72 78.4 81.1 75.4 65.7 56.5 46.9
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Hamamatsu in degrees centigrade and fahrenheit
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 17.8 17 17.3 18.5 20.7 23.2 26 27.7 26.6 24.2 22 19.7
    °F 64 62.6 63.1 65.3 69.3 73.8 78.7 81.8 79.8 75.5 71.7 67.5
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Hamamatsu (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 15 15 14 13 12 10 10 10 10 11 12 13
    mph 9 9 9 8 7 7 6 6 6 7 7 8

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

  • Relative humidity

    The graph below shows the average relative humidity.

    Average relative humidity in Hamamatsu
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    59% 60% 61% 69% 72% 79% 82% 79% 77% 71% 67% 62%

Other monthly averages

UV index

Hamamatsu weather stats

Hamamatsu weather statistics
Hottest month: August 30.5°C 86.9°F
Driest month: December 56mm 2.2ins
Sunniest month: January 6.7hrs
Coldest month: January 9.7°C 49.5°F
Wettest month: June 267mm 10.5ins
Warmest sea: August 27.7°C 81.9°F
Map showing location of Hamamatsu (34.7, 137.73333)

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