Shiroishi monthly weather averages

Average daytime temperature

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

Shiroishi average temperature chart (Celsius) Shiroishi average temperature chart (Fahrenheit)
Average monthly temperatures in Shiroishi (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1.9 2.4 6.1 13.7 19.4 22.1 25.7 27.6 22.6 16.6 10.7 5.1
°F 35.4 36.3 43.1 56.7 66.9 71.8 78.2 81.7 72.6 61.8 51.3 41.1

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.

Shiroishi monthly rainfall chart (mm) Shiroishi monthly rainfall chart (inches)
Average monthly rainfall in Shiroishi (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 53 57 69 84 96 129 156 167 164 99 70 50
inches 2.1 2.2 2.7 3.3 3.8 5.1 6.1 6.6 6.4 3.9 2.7 2
Rainy days 27 24 23 18 17 19 21 19 20 18 21 25

Average annual rainfall in Shiroishi: 1371.266mm (539.9 inches)

Average daily sunshine

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

Shiroishi average daily sunshine chart
Average daily sunshine Shiroishi
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.4 5 5.9 6.6 6.9 5.3 5 5.9 4.5 4.9 4.5 4.2

Day / night temperatures

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

Shiroishi average minimum / maximum temperatures (Celsius) Shiroishi average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Shiroishi (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -5.1 -5 -2.4 3.4 8.8 13.7 18 19.4 14.7 7.6 2.1 -2.3
Max °C 2.1 2.6 6.4 14 19.7 22.3 25.9 27.8 22.8 16.8 11 5.3
Min °F 22.9 23.1 27.8 38.1 47.8 56.7 64.3 66.9 58.4 45.7 35.7 28
Max °F 29.3 29.8 35.6 47.7 57.6 64.4 71.4 74.5 65.7 54 43.7 34.7

Sea temperature

The graph below shows the average sea temperature.

Shiroishi average sea temperature chart (Celsius) Shiroishi average sea temperature chart (Fahrenheit)
Average sea temperature around Shiroishi in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 11.6 9.8 9.7 11.4 14.5 18.5 21.7 24.5 23.4 20.3 17.4 14.5
°F 52.9 49.7 49.5 52.6 58.1 65.2 71 76.2 74.2 68.6 63.3 58.1

Wind speed

The graph below shows the average wind speed.

Shiroishi average winspeed by month (km/h) Shiroishi average winspeed by month (mph)
Average wind speed in Shiroishi (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 10 10 11 11 10 8 8 8 8 8 9 10
mph 6 6 7 7 6 5 5 5 5 5 6 6

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.

Shiroishi relative humidity averages
Average relative humidity in Shiroishi
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
73% 71% 67% 65% 67% 77% 81% 79% 80% 76% 73% 73%

Other monthly averages

UV index Best time to go?

Shiroishi weather stats

Shiroishi weather statistics
Hottest month: August 27.6°C 81.7°F
Driest month: December 50mm 2ins
Sunniest month: April 6.6hrs
Coldest month: January 1.9°C 35.4°F
Wettest month: August 167mm 6.6ins
Warmest sea: August 24.5°C 76.1°F
Map showing location of Shiroishi (38.00333, 140.61833) Shiroishi map pin © Google

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