Tromsø
December
Weather in Tromsø for December 2025
Your guide to Tromsø weather in December - trends and predictions
Tromsø is transformed into a snow paradise in December, with more than 20 snowy days on average.
In general, the average temperature in Tromsø at the beginning of December is -4.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of -4.1 °C by the end of December.
Snow Forecast ❄️
Temperatures
6
Dry days
1
Rainy days
24
Snow days
-5°/-9°
Temperatures
21 km/h
Avg max wind
81 %
Avg humidity
Tromsø in December average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  -2° | 2  -3° | 3  -6° | 4 -5° | 5 -5° | 6 -5° | 7 -7° |
| 8 -7° | 9 -5° | 10 -4° | 11 -4° | 12  -5° | 13 -5° | 14  -5° |
| 15 -3° | 16  -2° | 17 -3° | 18 -4° | 19 -4° | 20  -3° | 21 -5° |
| 22 -4° | 23 -4° | 24 -2° | 25 -3° | 26 -5° | 27 -4° | 28 -3° |
| 29 -5° | 30 -5° | 31  -4° |
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Temperatures trend during December in Tromsø
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. | Heavy snow | -2° /-9° | 5.6 mm | 3.8 cm | |
| 2 Dec. | Overcast | -3° /-8° | 3.6 mm | 2.4 cm | |
| 3 Dec. | Sunny | -6° /-9° | 3.8 mm | 2.5 cm | |
| 4 Dec. | Sunny | -5° /-9° | 3.5 mm | 2.6 cm | |
| 5 Dec. | Overcast | -5° /-10° | 4.6 mm | 1.5 cm | |
| 6 Dec. | Overcast | -5° /-11° | 1.1 mm | 0.3 cm | |
| 7 Dec. | Sunny | -7° /-11° | 0.7 mm | 0.5 cm | |
| 8 Dec. | Overcast | -7° /-11° | 3.1 mm | 1.3 cm | |
| 9 Dec. | Sunny | -5° /-10° | 14.1 mm | 0.9 cm | |
| 10 Dec. | Overcast | -4° /-9° | 14.1 mm | 0.1 cm | |
| 11 Dec. | Sunny | -4° /-9° | 6.3 mm | 2.8 cm | |
| 12 Dec. | Cloudy | -5° /-9° | 2.7 mm | 1.5 cm | |
| 13 Dec. | Overcast | -5° /-11° | 0.3 mm | 0 cm | |
| 14 Dec. | Light freezing rain | -5° /-10° | 0.6 mm | 0 cm | |
| 15 Dec. | Light freezing rain | -3° /-9° | 1.6 mm | 0.3 cm | |
| 16 Dec. | Moderate snow | -2° /-7° | 4.1 mm | 1 cm | |
| 17 Dec. | Sunny | -3° /-7° | 5.9 mm | 0.8 cm | |
| 18 Dec. | Cloudy | -4° /-9° | 4.7 mm | 1.7 cm | |
| 19 Dec. | Overcast | -4° /-8° | 1.2 mm | 0.6 cm | |
| 20 Dec. | Moderate or heavy snow showers | -3° /-8° | 5.6 mm | 3.5 cm | |
| 21 Dec. | Moderate snow | -5° /-9° | 2.4 mm | 1.2 cm | |
| 22 Dec. | Cloudy | -4° /-10° | 2.4 mm | 1.3 cm | |
| 23 Dec. | Overcast | -4° /-9° | 0.6 mm | 0.3 cm | |
| 24 Dec. | Overcast | -2° /-8° | 2.1 mm | 1.1 cm | |
| 25 Dec. | Overcast | -3° /-9° | 2.9 mm | 0.9 cm | |
| 26 Dec. | Overcast | -5° /-9° | 4.3 mm | 1.9 cm | |
| 27 Dec. | Light freezing rain | -4° /-8° | 7.2 mm | 3.2 cm | |
| 28 Dec. | Cloudy | -3° /-9° | 5.3 mm | 2.4 cm | |
| 29 Dec. | Overcast | -5° /-10° | 0.3 mm | 0 cm | |
| 30 Dec. | Overcast | -5° /-9° | 1.5 mm | 0.9 cm | |
| 31 Dec. | Partly cloudy | -4° /-9° | 1.3 mm | 0.7 cm | |
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Important Notice
Our weather forecast for Tromsø 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 Tromsø forecast closer to your planned date for the most up-to-date weather information.
Tromsø in December - FAQ
What are the expected maximum and minimum temperatures in Tromsø during December?
Brace for cold days with temperatures not exceeding -5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Tromsø during December?
Significant rainfall exceeding 103.9 mm is expected in Tromsø during December, occurring over more than 1 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Tromsø in December 2025?
Tromsø experiences an average snowfall of 34.491 cm during December, occurring over 24 days.
What are the typical wind conditions in Tromsø during December?
The average wind speed in Tromsø during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
Tromsø snow forecast December 2025
Track daily snowfall levels and discover Tromsø’s snowy potential this December ❄️
December rainfall patterns in Tromsø
Explore the daily rainfall trends and prepare for Tromsøs December weather 💧
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