Trøndelag (Trondheim)
December
Weather in Trøndelag for December 2025
Your guide to Trøndelag weather in December - trends and predictions
Snow Avalanche Warning - See hour by hour.
Trøndelag is transformed into a snow paradise in December, with more than 20 snowy days on average.
According to Trøndelag snow forecast for December 2025, 1 snowy day is expected in the next 2 weeks at Saturday, 13 December.So far, December 2025 in Trøndelag shows a warmer trend than usual by 2.8 °C.
The forecast for the coming days of December 2025 predicts a temperature of 3.4 °C , which is warmer than usual.
In general, the average temperature in Trøndelag at the beginning of December is -2.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of -0.4 °C by the end of December.
Official Weather Alert ⚠️
Snow Forecast ❄️
Temperatures
8
Dry days
2
Rainy days
21
Snow days
-2°/-7°
Temperatures
16 km/h
Avg max wind
85 %
Avg humidity
Trøndelag Weather December
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What’s the Weather Like in Trøndelag This December?
Discover the average temperatures and weather trends across Trøndelag’s cities this December.
Temperatures trend during December in Trøndelag
See the weather trend as well as the moving average line
December weather in Trøndelag day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Overcast | -2° /-6° | 0.3 mm | 0.2 cm | |
| 2 Dec. |  Partly cloudy | 0° /-7° | 2.1 mm | 0.8 cm | |
| 3 Dec. | Partly cloudy | -3° /-7° | 0.9 mm | 0.6 cm | |
| 4 Dec. | Partly cloudy | -4° /-8° | 0 mm | 0 cm | |
| 5 Dec. | Overcast | -3° /-8° | 0.1 mm | 0 cm | |
| 6 Dec. | Overcast | -2° /-6° | 0 mm | 0 cm | |
| 7 Dec. | Overcast | -3° /-6° | 0 mm | 0 cm | |
| 8 Dec. | Overcast | -1° /-7° | 0.9 mm | 0.1 cm | |
| 9 Dec. | Overcast | -1° /-6° | 0.1 mm | 0 cm | |
| 10 Dec. |  Light freezing rain | 0° /-6° | 1.8 mm | 0 cm | |
| 11 Dec. |  Sunny | -2° /-5° | 1.2 mm | 0 cm | |
| 12 Dec. | Sunny | -4° /-6° | 1.6 mm | 0 cm | |
| 13 Dec. |  Moderate or heavy snow showers | 1° /-1° | 2.3 mm | 0.7 cm | |
| 14 Dec. |  Patchy rain possible | 4° /0° | 1 mm | 0 cm | |
| 15 Dec. | Patchy rain possible | 4° /1° | 0.8 mm | 0 cm | |
| 16 Dec. | Patchy rain possible | 4° /2° | 0.4 mm | 0 cm | |
| 17 Dec. | Patchy rain possible | 2° /0° | 0.5 mm | 0 cm | |
| 18 Dec. | Partly cloudy | 1° /0° | 0 mm | 0 cm | |
| 19 Dec. | Partly cloudy | 7° /1° | 0 mm | 0 cm | |
| 20 Dec. | Partly cloudy | 4° /2° | 0 mm | 0 cm | |
| 21 Dec. | Patchy rain possible | 3° /3° | 0.1 mm | 0 cm | |
| 22 Dec. | Patchy rain possible | 7° /3° | 2.9 mm | 0 cm | |
| 23 Dec. |  Cloudy | 3° /3° | 0 mm | 0 cm | |
| 24 Dec. | Patchy rain possible | 3° /2° | 1.1 mm | 0 cm | |
| 25 Dec. | Patchy rain possible | 3° /2° | 0.6 mm | 0 cm | |
| 26 Dec. | Overcast | 2° /1° | 0 mm | 0 cm | |
| 27 Dec. |  Moderate snow | 1° /-5° | 2 mm | 1.2 cm | |
| 28 Dec. | Overcast | -2° /-8° | 0.7 mm | 0.3 cm | |
| 29 Dec. | Light freezing rain | -1° /-9° | 4.1 mm | 2.5 cm | |
| 30 Dec. | Overcast | -3° /-7° | 2.4 mm | 0.8 cm | |
| 31 Dec. |  Patchy moderate snow | -3° /-10° | 4 mm | 1.2 cm | |
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Important Notice
Our weather forecast for Trøndelag in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Trøndelag forecast closer to your planned date for the most up-to-date weather information.
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Trøndelag in December - FAQ
What are the expected maximum and minimum temperatures in Trøndelag during December?
Brace for cold days with temperatures not exceeding -2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Trøndelag during December?
Significant rainfall exceeding 104.2 mm is expected in Trøndelag during December, occurring over more than 2 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Trøndelag in December 2025?
Trøndelag experiences an average snowfall of 37.91 cm during December, occurring over 21 days.
What are the typical wind conditions in Trøndelag during December?
The average wind speed in Trøndelag during December is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
Trøndelag snow forecast December 2025
Track daily snowfall levels and discover Trøndelag’s snowy potential this December ❄️
On average, Trøndelag sees 21 snowy days during December, with approximately 37.9 cm of total snowfall.
December rainfall patterns in Trøndelag
Explore the daily rainfall trends and prepare for Trøndelags December weather 💧
Typically, Trøndelag has 2 rainy days in December with a total of 104.2 mm of rainfall.
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Where is Trøndelag?Get accurate weather forecasts for Trøndelag, located at latitude 63.43 and longitude 10.395. Stay updated with localized weather information tailored for Trøndelag.
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