December Weather in Roa, Norway

Last updated: August 27, 2025

In December, the average temperature in Roa, Norway hovers around -3°C (26°F), with extremes ranging from a chilly -17°C (2°F) to a milder 6°C (43°F). Expect a substantial precipitation amount of 101 mm (4.0 in) over approximately 15 days, and don't forget to brace yourself for the high average humidity of 98% that can make the air feel quite crisp!

December Temperature in Roa

In December in Roa, the average temperature is -3°C (26°F), with maximums reaching 6°C (43°F) and minimums dropping as low as -17°C (2°F). Travelers should be prepared for cold weather conditions and dress accordingly to enjoy their visit.

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

The chart illustrates December temperature patterns in Roa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roa, December typically has an average temperature of -3°C (26°F), with highs reaching up to 6°C (43°F) and lows dropping to around -17°C (2°F).

Data source: Temperature data for Roa generated using information from the Copernicus Climate Change Service.

December Precipitation in Roa

In Roa in December, the total precipitation amount is 101 mm (4.0 in) over the course of 15 days.

December Precipitation Trends in Roa

The chart displays monthly precipitation patterns in Roa, 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 Roa, December typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 15 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Roa

In Roa in December humidity is 98%. With an average temperature of -3°C (26°F), this humidity feels like a biting chill that creeps into your bones, making traveling uncomfortable and potentially hazardous as you navigate through the frosty air.

December Average Humidity in Roa

This chart illustrates the average monthly humidity levels in Roa, 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 Roa is approximately 98%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Roa

In Roa 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 Roa.

Maximum UV Index Levels in Roa for December

The chart shows the monthly maximum UV Index (UVI) for Roa 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 Roa typically reaches 1, which falls under the low exposure category.

Data source: Roa 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 Roa Compares to Other Months

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

This table compares monthly weather conditions in Roa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (24°F)	58 mm (2.3 inches)	98%	low
February Weather	-4°C (25°F)	59 mm (2.3 inches)	95%	low
March Weather	-1°C (31°F)	63 mm (2.5 inches)	92%	moderate
April Weather	4°C (39°F)	42 mm (1.6 inches)	88%	moderate
May Weather	9°C (49°F)	94 mm (3.7 inches)	84%	moderate
June Weather	15°C (59°F)	95 mm (3.7 inches)	82%	high
July Weather	16°C (62°F)	102 mm (4.0 inches)	82%	high
August Weather	15°C (58°F)	108 mm (4.2 inches)	87%	moderate
September Weather	11°C (52°F)	102 mm (4.0 inches)	91%	moderate
October Weather	6°C (42°F)	125 mm (4.9 inches)	95%	low
November Weather	1°C (34°F)	98 mm (3.8 inches)	97%	low
December Weather	-3°C (26°F)	101 mm (4.0 inches)	98%	low