Svalbard and Jan Mayen (Longyearbyen)
December
Weather in Svalbard and Jan Mayen for December 2025
Your guide to Svalbard and Jan Mayen weather in December - trends and predictions
Snow Avalanche Warning - See hour by hour.
The climate of Svalbard and Jan Mayen in December is quite snowy, averaging 11 snowy days.
According to Svalbard and Jan Mayen snow forecast for December 2025, 5 snowy days are expected until the end of the month. The closest date with snow is Thursday, 25 December.So far, December 2025 in Svalbard and Jan Mayen shows a warmer trend than usual by 2.9 °C.
Expect cooler weather in the next days in Svalbard and Jan Mayen with the forecast suggesting a temperature of -10.2 °C, lower than the historical average.
In general, the average temperature in Svalbard and Jan Mayen at the beginning of December is -9.6 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of -9 °C by the end of December.
Official Weather Alert ⚠️
Snow Forecast ❄️
Temperatures
20
Dry days
0
Rainy days
11
Snow days
-10°/-14°
Temperatures
14 km/h
Avg max wind
88 %
Avg humidity
Svalbard and Jan Mayen Weather December
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What’s the Weather Like in Svalbard and Jan Mayen This December?
Discover the average temperatures and weather trends across Svalbard and Jan Mayen’s cities this December.
Temperatures trend during December in Svalbard and Jan Mayen
See the weather trend as well as the moving average line
December weather in Svalbard and Jan Mayen day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | -11° /-14° | 0.2 mm | 0.2 cm | |
| 2 Dec. | Sunny | -11° /-16° | 0.7 mm | 0.5 cm | |
| 3 Dec. |  Overcast | -13° /-16° | 0 mm | 0 cm | |
| 4 Dec. |  Moderate snow | -10° /-16° | 0.9 mm | 0.6 cm | |
| 5 Dec. | Overcast | -9° /-14° | 0 mm | 0 cm | |
| 6 Dec. |  Partly cloudy | -8° /-11° | 0.2 mm | 0.1 cm | |
| 7 Dec. |  Light snow | -5° /-9° | 0.2 mm | 0.1 cm | |
| 8 Dec. |  Heavy snow | -6° /-11° | 2.9 mm | 2.1 cm | |
| 9 Dec. | Heavy snow | -9° /-12° | 1.5 mm | 1.2 cm | |
| 10 Dec. | Heavy snow | -8° /-13° | 3.6 mm | 3 cm | |
| 11 Dec. | Overcast | -10° /-17° | 0.7 mm | 0.6 cm | |
| 12 Dec. |  Mist | -8° /-14° | 0.6 mm | 0.4 cm | |
| 13 Dec. |  Moderate or heavy snow showers | -6° /-12° | 7.7 mm | 6.1 cm | |
| 14 Dec. | Moderate snow | -4° /-11° | 0.3 mm | 0.2 cm | |
| 15 Dec. | Moderate snow | -4° /-9° | 0.3 mm | 0.1 cm | |
| 16 Dec. | Overcast | -7° /-11° | 0.2 mm | 0 cm | |
| 17 Dec. | Partly cloudy | -9° /-12° | 0 mm | 0 cm | |
| 18 Dec. | Overcast | -7° /-12° | 0 mm | 0 cm | |
| 19 Dec. | Overcast | -8° /-14° | 0 mm | 0 cm | |
| 20 Dec. | Overcast | -9° /-13° | 0.1 mm | 0 cm | |
| 21 Dec. | Partly cloudy | -8° /-12° | 0.1 mm | 0.1 cm | |
| 22 Dec. | Partly cloudy | -9° /-13° | 1.2 mm | 0.7 cm | |
| 23 Dec. |  Freezing fog | -10° /-14° | 0 mm | 0 cm | |
| 24 Dec. | Overcast | -12° /-17° | 0.1 mm | 0 cm | |
| 25 Dec. | Mist | -1° /-6° | 5.3 mm | 3.8 cm | |
| 26 Dec. |  Light snow showers | -8° /-16° | 1.1 mm | 0.7 cm | |
| 27 Dec. |  Light freezing rain | -14° /-17° | 0.2 mm | 0.1 cm | |
| 28 Dec. | Light freezing rain | -10° /-13° | 0.2 mm | 0.1 cm | |
| 29 Dec. | Overcast | -9° /-12° | 0.1 mm | 0.1 cm | |
| 30 Dec. | Overcast | -10° /-13° | 0 mm | 0 cm | |
| 31 Dec. | Overcast | -11° /-16° | 0 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Svalbard and Jan Mayen 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 Svalbard and Jan Mayen forecast closer to your planned date for the most up-to-date weather information.
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Svalbard and Jan Mayen in December - FAQ
What are the expected maximum and minimum temperatures in Svalbard and Jan Mayen during December?
Brace for cold days with temperatures not exceeding -10° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Svalbard and Jan Mayen during December?
In December, Svalbard and Jan Mayen can expect light to moderate rainfall, totaling 27.3 mm across approximately 0 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Svalbard and Jan Mayen in December 2025?
Svalbard and Jan Mayen experiences an average snowfall of 21.23 cm during December, occurring over 11 days.
What are the typical wind conditions in Svalbard and Jan Mayen during December?
The average wind speed in Svalbard and Jan Mayen during December is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
Svalbard and Jan Mayen snow forecast December 2025
Track daily snowfall levels and discover Svalbard and Jan Mayen’s snowy potential this December ❄️
On average, Svalbard and Jan Mayen sees 11 snowy days during December, with approximately 21.2 cm of total snowfall.
December rainfall patterns in Svalbard and Jan Mayen
Explore the daily rainfall trends and prepare for Svalbard and Jan Mayens December weather 💧
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