Porvoo monthly weather averages

Average daytime temperature

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

Porvoo average temperature chart (Celsius) Porvoo average temperature chart (Fahrenheit)
Average monthly temperatures in Porvoo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -4.6 -4.1 0.5 7 15 20 21.3 19.6 13.9 8.2 2.2 -1.9
°F 23.7 24.7 32.9 44.7 59.1 68 70.3 67.3 57 46.7 35.9 28.5

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.

Porvoo monthly rainfall chart (mm) Porvoo monthly rainfall chart (inches)
Average monthly rainfall in Porvoo (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 45 34 36 37 36 46 73 80 73 70 68 59
inches 1.8 1.3 1.4 1.5 1.4 1.8 2.9 3.2 2.9 2.7 2.7 2.3
Rainy days 18 15 14 13 10 11 14 15 16 16 19 20

Average annual rainfall in Porvoo: 742.3mm (292.2 inches)

Average daily sunshine

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

Porvoo average daily sunshine chart
Average daily sunshine Porvoo
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 0.8 1.9 3.8 5.9 9 10.6 9.3 7.1 4.5 2.9 1.1 0.7

Day / night temperatures

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

Porvoo average minimum / maximum temperatures (Celsius) Porvoo average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Porvoo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -11.2 -11.3 -7.5 -1.3 4.1 9 11.3 10.4 6.2 2.3 -2.5 -7.8
Max °C -4.5 -3.9 0.7 7.3 15.3 20.3 21.6 19.9 14.1 8.3 2.3 -1.8
Min °F 11.9 11.7 18.5 29.8 39.4 48.1 52.3 50.6 43.1 36.1 27.5 18
Max °F 18 18.3 25.9 37.4 49.5 58.3 61.5 59.2 50.2 41.5 31.8 23.4

Sea temperature

The graph below shows the average sea temperature.

Porvoo average sea temperature chart (Celsius) Porvoo average sea temperature chart (Fahrenheit)
Average sea temperature around Porvoo in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1.5 0.5 0.5 2 5.5 10.5 15.8 17.1 14.3 10.2 6.5 3.3
°F 34.7 32.9 32.9 35.6 41.8 50.9 60.5 62.7 57.7 50.3 43.7 37.9

Wind speed

The graph below shows the average wind speed.

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

Porvoo relative humidity averages
Average relative humidity in Porvoo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
87% 85% 82% 75% 68% 68% 74% 80% 85% 86% 89% 88%

Other monthly averages

UV index Best time to go?

Porvoo weather stats

Porvoo weather statistics
Hottest month: July 21.3°C 70.3°F
Driest month: February 34mm 1.3ins
Sunniest month: June 10.6hrs
Coldest month: January -4.6°C 23.7°F
Wettest month: August 80mm 3.1ins
Warmest sea: August 17.1°C 62.8°F
Map showing location of Porvoo (60.39233, 25.66507) Porvoo map pin © Google

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