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December Weather in Sylling, Norway

Last updated: August 27, 2025

In December, the average temperature in Sylling, Norway hovers around -3°C (27°F). Expect chilly conditions, with the minimum temperature dipping to -15°C (5°F) and a maximum reaching 7°C (45°F). During this period, precipitation amounts to 102 mm (4.0 in), typically spread over 15 days, while the air is characterized by a high average humidity of 93%. Stay warm and prepared for the winter weather!

December Temperature in Sylling

In December in Sylling, the average temperature is -3°C (27°F). The maximum can reach 7°C (45°F), while the minimum can drop as low as -15°C (5°F). Be prepared for chilly weather and pack accordingly if you plan to travel then.

December Weather in Sylling: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sylling, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sylling, December typically has an average temperature of -3°C (27°F), with highs reaching up to 7°C (45°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec252732404959636054443627
Data source: Temperature data for Sylling generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Sylling

In Sylling in December, the precipitation amount is 102 mm (4.0 in) over the course of 15 days.

December Precipitation Trends in Sylling

The chart displays monthly precipitation patterns in Sylling, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Sylling, December typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec576163388688949610212594102
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sylling

In Sylling in December humidity is 93%. With an average temperature of -3°C (27°F), this humidity feels like a damp chill that seeps through your clothes, making travel uncomfortable and forcing you to bundle up against the biting cold while navigating the wet conditions.

December Average Humidity in Sylling

This chart illustrates the average monthly humidity levels in Sylling, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Sylling is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%82%73%71%72%77%86%92%93%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sylling

In Sylling in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Sylling.

Maximum UV Index Levels in Sylling for December

The chart shows the monthly maximum UV Index (UVI) for Sylling in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Sylling typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Sylling December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Sylling Compares to Other Months

Weather in Sylling varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sylling, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sylling, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)57 mm (2.3 inches)94%low
February Weather-3°C (27°F)61 mm (2.4 inches)92%low
March Weather0°C (32°F)63 mm (2.5 inches)89%moderate
April Weather4°C (40°F)38 mm (1.5 inches)82%moderate
May Weather9°C (49°F)86 mm (3.4 inches)73%moderate
June Weather15°C (59°F)88 mm (3.5 inches)71%high
July Weather17°C (63°F)94 mm (3.7 inches)72%high
August Weather16°C (61°F)96 mm (3.8 inches)77%moderate
September Weather12°C (54°F)102 mm (4.0 inches)86%moderate
October Weather7°C (44°F)125 mm (4.9 inches)92%low
November Weather2°C (36°F)94 mm (3.7 inches)93%low
December Weather-3°C (27°F)102 mm (4.0 inches)93%low

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