Trondheim monthly weather averages

Average daytime temperature

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

Trondheim average temperature chart (Celsius) Trondheim average temperature chart (Fahrenheit)
Average monthly temperatures in Trondheim (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -0.5 -0 2.9 6 12 15.4 16.1 16.4 12.1 7.6 2.7 0.9
°F 31.1 32 37.1 42.8 53.6 59.7 61 61.5 53.7 45.7 36.8 33.6

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.

Trondheim monthly rainfall chart (mm) Trondheim monthly rainfall chart (inches)
Average monthly rainfall in Trondheim (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 100 82 81 67 53 70 81 77 133 129 100 123
inches 3.9 3.2 3.2 2.6 2.1 2.8 3.2 3 5.2 5.1 3.9 4.9
Rainy days 22 19 18 18 15 17 19 19 24 23 21 24

Average daily sunshine

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

Trondheim average daily sunshine chart
Average daily sunshine Trondheim
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 0.6 1.6 3.3 5.2 3.6 0 3.4 6.3 3.9 2.5 1.4 0.5

Day / night temperatures

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

Trondheim average minimum / maximum temperatures (Celsius) Trondheim average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Trondheim (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -5.2 -5.1 -3 -0.2 4.4 7.8 9.4 8.9 6 3.1 -1.8 -4
Max °C -0.4 0.1 3 6.2 12.2 15.6 16.3 16.6 12.2 7.8 2.8 1
Min °F 22.6 22.8 26.6 31.7 39.9 46 48.8 47.9 42.8 37.5 28.8 24.8
Max °F 27 27.5 32 37.4 46.9 53.1 55 54.9 48.4 41.7 32.9 29.3

Sea temperature

The graph below shows the average sea temperature.

Trondheim average sea temperature chart (Celsius) Trondheim average sea temperature chart (Fahrenheit)
Average sea temperature around Trondheim in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.7 6.3 6.1 6.3 7.8 10.4 12.8 13.7 12.4 10.3 8.6 7.3
°F 44.1 43.4 43 43.4 46.1 50.8 55 56.7 54.3 50.6 47.4 45.2

Wind speed

The graph below shows the average wind speed.

Trondheim average winspeed by month (km/h) Trondheim average winspeed by month (mph)
Average wind speed in Trondheim (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 21 18 18 17 14 15 13 13 16 17 18 21
mph 13 11 11 11 9 9 8 8 10 11 11 13

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.

Trondheim relative humidity averages
Average relative humidity in Trondheim
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
82% 80% 75% 75% 72% 76% 80% 81% 82% 82% 82% 83%
Trondheim

Other monthly averages

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Trondheim weather stats

Trondheim weather statistics
Hottest month: July 16.1°C 61°F
Driest month: May 53mm 2.1ins
Sunniest month: May 3.6hrs
Coldest month: January -0.5°C 31.1°F
Wettest month: September 133mm 5.2ins
Warmest sea: August 13.7°C 56.7°F
Map showing location of Trondheim (63.43049, 10.39506)

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