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December Weather in Finnsnes, Norway

Last updated: August 27, 2025

In December, the average temperature in Finnsnes, Norway hovers around -5°C (23°F). Expect chilly conditions with a minimum temperature dipping to -22°C (-7°F) and a maximum of 8°C (47°F). The region experiences 84 mm (3.3 in) of precipitation over about 14 days, contributing to an average humidity of a brisk 94%. Prepare for a truly wintry experience!

December Temperature in Finnsnes

In December in Finnsnes, the average temperature is -5°C (23°F). Maximums can reach 8°C (47°F), while minimums can drop as low as -22°C (-7°F). Travelers should be prepared for a range of cold weather conditions and dress warmly to enjoy their visit.

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

The chart illustrates December temperature patterns in Finnsnes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Finnsnes, December typically has an average temperature of -5°C (23°F), with highs reaching up to 8°C (47°F) and lows dropping to around -22°C (-7°F).
JanFebMarAprMayJunJulAugSepOctNovDec232126334150555447383023
Data source: Temperature data for Finnsnes 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 Finnsnes

In Finnsnes in December, the precipitation amount is 84 mm (3.3 in) over the course of 14 days.

December Precipitation Trends in Finnsnes

The chart displays monthly precipitation patterns in Finnsnes, 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 Finnsnes, December typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9010013110381123891261298910184
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Finnsnes

In Finnsnes in December, humidity is 94%. With an average temperature of -5°C (23°F), this humidity feels like a chilling dampness that seeps into your bones, making travel uncomfortable and requiring extra layers to combat the biting cold.

December Average Humidity in Finnsnes

This chart illustrates the average monthly humidity levels in Finnsnes, 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 Finnsnes is approximately 94%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%91%89%83%84%85%88%92%92%92%94%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Finnsnes

In Finnsnes in December, the maximum UV index is 0, which corresponds to a low Exposure Category. The time to burn is approximately 45 minutes. For detailed information, you can check the Hourly UV Index in Finnsnes.

Maximum UV Index Levels in Finnsnes for December

The chart shows the monthly maximum UV Index (UVI) for Finnsnes 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 Finnsnes typically reaches 0, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345542110
Data source: Finnsnes 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 Finnsnes Compares to Other Months

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

This table compares monthly weather conditions in Finnsnes, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)90 mm (3.5 inches)95%low
February Weather-6°C (21°F)100 mm (4.0 inches)93%low
March Weather-3°C (27°F)131 mm (5.1 inches)91%low
April Weather0°C (33°F)103 mm (4.0 inches)89%moderate
May Weather5°C (41°F)81 mm (3.2 inches)83%moderate
June Weather10°C (51°F)123 mm (4.8 inches)84%moderate
July Weather13°C (56°F)89 mm (3.5 inches)85%moderate
August Weather12°C (54°F)126 mm (4.9 inches)88%moderate
September Weather8°C (47°F)129 mm (5.1 inches)91%low
October Weather3°C (38°F)88 mm (3.5 inches)92%low
November Weather-1°C (31°F)101 mm (4.0 inches)92%low
December Weather-5°C (23°F)84 mm (3.3 inches)94%low

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