Rishiri Town monthly weather averages

Average daytime temperature

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

Rishiri Town average temperature chart (Celsius) Rishiri Town average temperature chart (Fahrenheit)
Average monthly temperatures in Rishiri Town (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -4.4 -4.1 -0.1 6.5 11.7 15.4 19.5 21.5 18.6 12.4 4.9 -1.1
°F 24 24.5 31.8 43.7 53 59.7 67.1 70.7 65.4 54.3 40.7 30.1

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.

Rishiri Town monthly rainfall chart (mm) Rishiri Town monthly rainfall chart (inches)
Average monthly rainfall in Rishiri Town (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 93 68 61 57 69 71 97 139 138 126 128 116
inches 3.7 2.7 2.4 2.3 2.7 2.8 3.8 5.5 5.4 4.9 5 4.6
Rainy days 28 25 24 17 18 17 18 18 17 20 24 28

Average annual rainfall in Rishiri Town: 1347.833mm (530.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Rishiri Town

Rishiri Town average daily sunshine chart
Average daily sunshine Rishiri Town
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.2 3.6 5.3 6.3 6.5 6.3 5.5 5.5 6.4 5 2.7 1.8

Day / night temperatures

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

Rishiri Town average minimum / maximum temperatures (Celsius) Rishiri Town average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Rishiri Town (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -9.9 -10.2 -6.1 0.2 4.6 9.1 13.8 15.6 11.7 5.5 -1 -6.3
Max °C -4.3 -4 0 6.7 11.9 15.6 19.7 21.7 18.8 12.6 5 -1
Min °F 14.2 13.6 21.1 32.3 40.2 48.3 56.8 60 53 41.8 30.2 20.8
Max °F 19.2 19.2 26.6 38.1 46.8 54.1 62.1 65.5 59.4 48.2 35.6 25.5

Sea temperature

The graph below shows the average sea temperature.

Rishiri Town average sea temperature chart (Celsius) Rishiri Town average sea temperature chart (Fahrenheit)
Average sea temperature around Rishiri Town in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.6 2.1 2.7 4 7 11.3 16 19.3 18.3 13.8 8.8 4.9
°F 36.6 35.7 36.8 39.2 44.5 52.3 60.8 66.7 64.9 56.8 47.9 40.9

Wind speed

The graph below shows the average wind speed.

Rishiri Town average winspeed by month (km/h) Rishiri Town average winspeed by month (mph)
Average wind speed in Rishiri Town (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 16 15 15 15 13 12 12 14 16 17 17
mph 11 10 9 9 9 8 7 8 9 10 11 11

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.

Rishiri Town relative humidity averages
Average relative humidity in Rishiri Town
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 74% 72% 72% 75% 83% 85% 83% 75% 69% 69% 72%

Other monthly averages

UV index Best time to go?

Rishiri Town weather stats

Rishiri Town weather statistics
Hottest month: August 21.5°C 70.7°F
Driest month: April 57mm 2.2ins
Sunniest month: September 6.4hrs
Coldest month: January -4.4°C 24.1°F
Wettest month: August 139mm 5.5ins
Warmest sea: August 19.3°C 66.7°F
Map showing location of Rishiri Town (45.15928, 141.19629) Rishiri Town map pin © Google

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