The highest day temperature in December 2023 was 40°F. The lowest night temperature was 12°F. The average values for day and night temperatures during December were 21.4°F и 20.2°F respectivly.

The average sea surface temperature in December 2023 for Trondheim was 40.6°F. The maximum and minimum values were 34.8°F and 44.2°F respectively.

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation total in December for Trondheim is 2.7 in.

The average wind speed in December is 7.8 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Trondheim in December is 1.9 hours.