Innoshima monthly weather averages

Average daytime temperature

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

Innoshima average temperature chart (Celsius) Innoshima average temperature chart (Fahrenheit)
Average monthly temperatures in Innoshima (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.8 8.3 11.7 17.6 22.1 25.3 29.5 31 26.8 21.3 15.8 10.6
°F 46 47 53.1 63.7 71.7 77.6 85.1 87.8 80.2 70.3 60.4 51

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.

Innoshima monthly rainfall chart (mm) Innoshima monthly rainfall chart (inches)
Average monthly rainfall in Innoshima (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 40 52 82 125 127 216 184 106 174 97 63 30
inches 1.6 2.1 3.2 4.9 5 8.5 7.2 4.2 6.8 3.8 2.5 1.2
Rainy days 15 16 16 14 14 16 16 13 16 12 11 13

Average annual rainfall in Innoshima: 1463.3335mm (576.1 inches)

Average daily sunshine

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

Innoshima average daily sunshine chart
Average daily sunshine Innoshima
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.8 5 5.9 6.4 6.9 5.7 6.5 7.5 5.6 5.9 5.3 4.9

Day / night temperatures

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

Innoshima average minimum / maximum temperatures (Celsius) Innoshima average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Innoshima (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -0.7 -0.4 2.1 7.8 12.5 17.5 22.2 22.9 18.8 12 6.4 1.5
Max °C 8 8.5 11.9 17.9 22.3 25.5 29.7 31.2 27 21.5 16 10.8
Min °F 30.7 31.3 35.8 46.1 54.4 63.5 71.9 73.2 65.8 53.5 43.5 34.7
Max °F 38.5 39.3 44.6 55.1 63.3 70.7 78.7 80.7 73.2 62.1 52.2 43.1

Sea temperature

The graph below shows the average sea temperature.

Innoshima average sea temperature chart (Celsius) Innoshima average sea temperature chart (Fahrenheit)
Average sea temperature around Innoshima in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 16.2 15 14.9 16.1 18.6 21.8 25.1 27.3 26 23.4 21 18.4
°F 61.1 59 58.9 61.1 65.6 71.3 77.2 81.1 78.9 74.1 69.8 65

Wind speed

The graph below shows the average wind speed.

Innoshima average winspeed by month (km/h) Innoshima average winspeed by month (mph)
Average wind speed in Innoshima (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 9 8 8 8 7 6 6 7 7 7 7 8
mph 5 5 5 5 4 4 4 4 4 4 5 5

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.

Innoshima relative humidity averages
Average relative humidity in Innoshima
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
68% 68% 67% 68% 71% 76% 78% 75% 76% 72% 72% 70%

Other monthly averages

UV index Best time to go?

Innoshima weather stats

Innoshima weather statistics
Hottest month: August 31°C 87.8°F
Driest month: December 30mm 1.2ins
Sunniest month: August 7.5hrs
Coldest month: January 7.8°C 46°F
Wettest month: June 216mm 8.5ins
Warmest sea: August 27.3°C 81.1°F
Map showing location of Innoshima (34.28333, 133.18333) Innoshima map pin © Google

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