Trondheim Weather in December
With daytime temperatures of 2°C (36°F) and nighttime lows of -4°C (25°F), December in Trondheim brings low temperatures during the day. Do keep in mind that quite a bit of snow/rainfall is typical. Around 105 mm (4.1 in) falls on average.
Rainfall in Trondheim in December
Records from the past 30 years suggest around 24 days of snow/rain, with 105 mm (4.1 in) average for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Trondheim in December
December in Trondheim sees highs of 2°C (36°F) and lows of -4°C (25°F) overnight. Experience the winter season in December. Expect a distinctly cold feel throughout the day, not just overnight. Nights are well below freezing at -4°C (25°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. This month is marked by cold temperatures, so wearing layers is key to staying warm. Don't be caught off-guard by the cold.
Sunshine in Trondheim in December
With limited sunshine this month, there are about 19 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Trondheim.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Norway, check out our Trondheim's climate page.
Trondheim Temperature in December
Min Temperature
-4°C (25°F)
Max Temperature
2°C (36°F)
Chance of Rain
79%
Precipitation
105 mm (4.1 in)
Rainy days
24 days
Humidity
79% *
Sunshine
19 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Trondheim typically stay consistent throughout December, with daily highs averaging around 2°C (36°F). Nights are very cold, with lows typically ranging from -5°C (23°F) to -2°C (28°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Trondheim in December
Browse day-by-day weather records for Trondheim spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Trondheim historical weather extremes in December
The extremes listed below come from historical weather data collected in Trondheim from 1976 through 2025.
- Trondheim recorded its highest December temperature of 13°C (55°F) on December 6, 2000.
- The lowest overnight temperature recorded in December was -21°C (-6°F) (December 27, 1976).
Best Places in Norway in December
Find out more about the weather in Norway and which places have the best travel conditions in this month. See all of Norway in December →
perfect weather
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tolerable
unpleasant
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What to Wear in Trondheim in December
Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Trondheim in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Norway, check out our Trondheim's climate page.
Temperature Rainfall Sunshine Humidity
See the full Trondheim climate overview or explore weather in Norway.
