December Weather in Bo, Norway

Last updated: August 27, 2025

In December, the average temperature in Bo, Norway hovers around -3°C (27°F). Expect chilly conditions with a minimum plummeting to -14°C (7°F) and a maximum reaching 9°C (48°F). This month also brings 126 mm (5.0 in) of precipitation over 16 days, resulting in an average humidity of 92%, making it a notably damp period.

December Temperature in Bo

In December in Bo, the average temperature is -3°C (27°F). Maximum temperatures can reach 9°C (48°F), while the minimum can drop as low as -14°C (7°F). It's advisable to dress warmly and be prepared for chilly conditions if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Bo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bo, December typically has an average temperature of -3°C (27°F), with highs reaching up to 9°C (48°F) and lows dropping to around -14°C (7°F).

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

December Precipitation in Bo

In Bo in December, the precipitation amount is 126 mm (5.0 in), occurring over the course of 16 days.

December Precipitation Trends in Bo

The chart displays monthly precipitation patterns in Bo, 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 Bo, December typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 16 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Bo

In Bo in December, humidity is 92%. With an average temperature of -3°C (27°F), this humidity feels like a heavy, icy fog enveloping you, making every breath feel damp and chilly, which can be quite uncomfortable for traveling.

December Average Humidity in Bo

This chart illustrates the average monthly humidity levels in Bo, 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 Bo is approximately 92%, 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 Bo

In Bo 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 Bo.

Maximum UV Index Levels in Bo for December

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

Data source: Bo 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 Bo Compares to Other Months

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

This table compares monthly weather conditions in Bo, 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 (25°F)	71 mm (2.8 inches)	93%	low
February Weather	-4°C (26°F)	76 mm (3.0 inches)	91%	low
March Weather	-1°C (30°F)	81 mm (3.2 inches)	88%	moderate
April Weather	3°C (38°F)	44 mm (1.7 inches)	83%	moderate
May Weather	9°C (48°F)	86 mm (3.4 inches)	75%	high
June Weather	14°C (58°F)	107 mm (4.2 inches)	74%	high
July Weather	16°C (61°F)	113 mm (4.5 inches)	74%	high
August Weather	14°C (57°F)	100 mm (3.9 inches)	78%	moderate
September Weather	10°C (51°F)	134 mm (5.3 inches)	86%	moderate
October Weather	5°C (42°F)	140 mm (5.5 inches)	92%	low
November Weather	1°C (34°F)	116 mm (4.6 inches)	92%	low
December Weather	-3°C (27°F)	126 mm (5.0 inches)	92%	low