Rantasalmi monthly weather averages

Average daytime temperature

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

Rantasalmi average temperature chart (Celsius) Rantasalmi average temperature chart (Fahrenheit)
Average monthly temperatures in Rantasalmi (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -7.4 -6.5 -0.5 5.6 14.2 19.1 21.1 18.4 12.2 6 0 -4.4
°F 18.8 20.4 31 42 57.6 66.4 70 65.1 54 42.9 32.1 24

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.

Rantasalmi monthly rainfall chart (mm) Rantasalmi monthly rainfall chart (inches)
Average monthly rainfall in Rantasalmi (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 40 30 33 34 33 55 69 79 66 60 56 51
inches 1.6 1.2 1.3 1.3 1.3 2.2 2.7 3.1 2.6 2.4 2.2 2
Rainy days 23 18 16 14 12 14 15 17 18 18 23 24

Average annual rainfall in Rantasalmi: 695.933mm (274 inches)

Average daily sunshine

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

Rantasalmi average daily sunshine chart
Average daily sunshine Rantasalmi
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 0.6 1.7 3.5 5.7 9 0 4.4 6.8 4.1 2.3 0.7 0.4

Day / night temperatures

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

Rantasalmi average minimum / maximum temperatures (Celsius) Rantasalmi average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Rantasalmi (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -13.8 -13.1 -8.1 -2.2 4.4 9.9 12.5 10.9 6.1 1.5 -4.2 -10.3
Max °C -7.2 -6.3 -0.4 5.8 14.5 19.4 21.3 18.6 12.4 6.2 0.2 -4.3
Min °F 7.2 8.4 17.5 28.1 39.8 49.7 54.5 51.5 42.9 34.6 24.5 13.5
Max °F 13.1 14.5 24.4 35.2 48.9 58.3 62.4 58.5 48.6 38.8 28.4 18.9

Sea temperature

The graph below shows the average sea temperature.

Rantasalmi average sea temperature chart (Celsius) Rantasalmi average sea temperature chart (Fahrenheit)
Average sea temperature around Rantasalmi in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 0.9 -0.1 -0.2 0.8 3.7 8.4 13.1 14.4 12.1 8.3 5.2 2.6
°F 33.6 31.9 31.6 33.5 38.7 47.1 55.6 57.9 53.7 47 41.3 36.7

Wind speed

The graph below shows the average wind speed.

Rantasalmi average winspeed by month (km/h) Rantasalmi average winspeed by month (mph)
Average wind speed in Rantasalmi (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 10 11 12 12 12 11 10 10 12 13 12 12
mph 7 7 7 7 7 7 6 7 7 8 8 7

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.

Rantasalmi relative humidity averages
Average relative humidity in Rantasalmi
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
88% 87% 82% 73% 64% 65% 70% 77% 84% 87% 91% 90%

Other monthly averages

UV index Best time to go?

Rantasalmi weather stats

Rantasalmi weather statistics
Hottest month: July 21.1°C 70°F
Driest month: February 30mm 1.2ins
Sunniest month: May 9hrs
Coldest month: January -7.4°C 18.7°F
Wettest month: August 79mm 3.1ins
Warmest sea: August 14.4°C 57.9°F
Map showing location of Rantasalmi (62.06667, 28.3) Rantasalmi map pin © Google

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