Hamamatsu monthly weather averages

Average daytime temperature

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

Hamamatsu average temperature chart (Celsius) Hamamatsu average temperature chart (Fahrenheit)
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.

Hamamatsu monthly rainfall chart (mm) Hamamatsu monthly rainfall chart (inches)
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

Hamamatsu average daily sunshine chart
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.

Hamamatsu average minimum / maximum temperatures (Celsius) Hamamatsu average minimum / maximum temperatures (Fahrenheit)
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.

Hamamatsu average sea temperature chart (Celsius) Hamamatsu average sea temperature chart (Fahrenheit)
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.

Hamamatsu average winspeed by month (km/h) Hamamatsu average winspeed by month (mph)
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.

Hamamatsu relative humidity averages
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 Best time to go?

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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