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December Weather in Rost, Norway

Last updated: August 27, 2025

In December, the average temperature in Rost, Norway hovers around 4°C (40°F), with lows dipping to -2°C (28°F) and highs reaching up to 9°C (48°F). Expect a fair amount of precipitation, totaling 110 mm (4.3 in) over approximately 19 days. The air is also quite humid, with an average humidity of 84%, making for a cool and damp atmosphere.

December Temperature in Rost

In December in Rost, the average temperature is 4°C (40°F). Maximums can reach 9°C (48°F) and minimums can be as low as -2°C (28°F). Visitors should prepare for chilly weather and pack accordingly for their trip.

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

The chart illustrates December temperature patterns in Rost, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rost, December typically has an average temperature of 4°C (40°F), with highs reaching up to 9°C (48°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec373737394349535552474340
Data source: Temperature data for Rost 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 Rost

In Rost in December, the precipitation amount is 110 mm (4.3 in) over a span of 19 days.

December Precipitation Trends in Rost

The chart displays monthly precipitation patterns in Rost, 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 Rost, December typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1028592583845517293126138111
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rost

In Rost in December, humidity is 84%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry while traveling.

December Average Humidity in Rost

This chart illustrates the average monthly humidity levels in Rost, 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 Rost is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%82%77%79%82%84%86%87%86%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rost

In Rost 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 Rost.

Maximum UV Index Levels in Rost for December

The chart shows the monthly maximum UV Index (UVI) for Rost 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 Rost typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345543111
Data source: Rost 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 Rost Compares to Other Months

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

This table compares monthly weather conditions in Rost, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)102 mm (4.0 inches)86%low
February Weather3°C (37°F)85 mm (3.4 inches)84%low
March Weather3°C (37°F)92 mm (3.6 inches)83%low
April Weather4°C (39°F)58 mm (2.3 inches)82%moderate
May Weather6°C (43°F)38 mm (1.5 inches)77%moderate
June Weather9°C (49°F)45 mm (1.8 inches)79%moderate
July Weather12°C (53°F)51 mm (2.0 inches)82%moderate
August Weather13°C (55°F)72 mm (2.8 inches)84%moderate
September Weather11°C (52°F)93 mm (3.7 inches)86%moderate
October Weather8°C (47°F)126 mm (5.0 inches)87%low
November Weather6°C (43°F)138 mm (5.4 inches)86%low
December Weather4°C (40°F)110 mm (4.3 inches)84%low

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