Trøndelag (Trondheim)
December
Weather in Trøndelag for December 2025
Your guide to Trøndelag weather in December - trends and predictions
Expect heavy snowfall in Trøndelag during December, with an average of 17 snowy days.
In general, the average temperature in Trøndelag at the beginning of December is -4.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of -1 °C by the end of December.
Snow Forecast ❄️
Temperatures
12
Dry days
2
Rainy days
17
Snow days
-3°/-8°
Temperatures
15 km/h
Avg max wind
85 %
Avg humidity
Trøndelag in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  -3° | 2  -3° | 3 -5° | 4 -7° | 5 -4° | 6 -4° | 7 -5° |
| 8 -2° | 9 -3° | 10 -1° | 11  -3° | 12 -6° | 13 -6° | 14 -4° |
| 15  0° | 16  4° | 17  2° | 18  3° | 19  1° | 20 0° | 21  -6° |
| 22  -3° | 23 -2° | 24 -2° | 25 -1° | 26 2° | 27  1° | 28 -2° |
| 29 -1° | 30 -3° | 31 -3° |
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Temperatures trend during December in Trøndelag
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Overcast | -3° /-6° | 0.1 mm | 0 cm | |
| 2 Dec. | Partly cloudy | -3° /-8° | 3.2 mm | 1.2 cm | |
| 3 Dec. | Partly cloudy | -5° /-9° | 1.3 mm | 0.9 cm | |
| 4 Dec. | Partly cloudy | -7° /-10° | 0 mm | 0 cm | |
| 5 Dec. | Overcast | -4° /-10° | 0.1 mm | 0 cm | |
| 6 Dec. | Overcast | -4° /-7° | 0 mm | 0 cm | |
| 7 Dec. | Overcast | -5° /-8° | 0 mm | 0 cm | |
| 8 Dec. | Overcast | -2° /-9° | 1.3 mm | 0.1 cm | |
| 9 Dec. | Overcast | -3° /-8° | 0 mm | 0 cm | |
| 10 Dec. | Partly cloudy | -1° /-8° | 2.1 mm | 0 cm | |
| 11 Dec. | Sunny | -3° /-5° | 0.2 mm | 0 cm | |
| 12 Dec. | Sunny | -6° /-8° | 0.1 mm | 0.1 cm | |
| 13 Dec. | Partly cloudy | -6° /-7° | 4.4 mm | 0 cm | |
| 14 Dec. | Overcast | -4° /-8° | 5.1 mm | 2.9 cm | |
| 15 Dec. | Moderate or heavy snow with thunder | 0° /-7° | 11.8 mm | 6.8 cm | |
| 16 Dec. | Light freezing rain | 4° /-1° | 14.7 mm | 2.6 cm | |
| 17 Dec. | Light snow | 2° /-2° | 7.8 mm | 3.5 cm | |
| 18 Dec. | Light drizzle | 3° /-3° | 3.2 mm | 0.3 cm | |
| 19 Dec. | Moderate or heavy snow showers | 1° /-4° | 8.4 mm | 2.8 cm | |
| 20 Dec. | Moderate or heavy snow with thunder | 0° /-5° | 4 mm | 2.6 cm | |
| 21 Dec. | Heavy snow | -6° /-9° | 1 mm | 0.9 cm | |
| 22 Dec. | Patchy moderate snow | -3° /-8° | 2.9 mm | 2.2 cm | |
| 23 Dec. | Patchy moderate snow | -2° /-8° | 2.5 mm | 1.2 cm | |
| 24 Dec. | Light freezing rain | -2° /-10° | 2 mm | 0.5 cm | |
| 25 Dec. | Light freezing rain | -1° /-9° | 8.8 mm | 1.5 cm | |
| 26 Dec. | Light freezing rain | 2° /-4° | 6.2 mm | 1.8 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.
Trøndelag in December - FAQ
What are the expected maximum and minimum temperatures in Trøndelag during December?
Brace for cold days with temperatures not exceeding -3° 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?
Moderate rainfall is anticipated in Trøndelag during December, with a total of 74.2 mm spread over approximately 2 days. Considering plans for rainy days is advisable.
Will it snow in Trøndelag in December 2025?
Trøndelag experiences an average snowfall of 26.5 cm during December, occurring over 17 days.
What are the typical wind conditions in Trøndelag during December?
The average wind speed in Trøndelag during December is 15 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 ❄️
December rainfall patterns in Trøndelag
Explore the daily rainfall trends and prepare for Trøndelags December weather 💧
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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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