December Weather in Hallsta, Sweden

Last updated: August 27, 2025

In December, the average temperature in Hallsta, Sweden hovers around -4°C (25°F), with extremes reaching as low as -22°C (-7°F) and peaking at 6°C (44°F). Expect a fair amount of precipitation, with 61 mm (2.4 in) over approximately 12 days. Notably, the region experiences an average humidity of 100%, making it a chilly and damp time of year.

December Temperature in Hallsta

In December in Hallsta, the average temperature is -4°C (25°F). The maximum can reach 6°C (44°F), while the minimum can drop to as low as -22°C (-7°F). Travelers should be prepared for very cold conditions and pack accordingly to ensure a comfortable visit.

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

The chart illustrates December temperature patterns in Hallsta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hallsta, December typically has an average temperature of -4°C (25°F), with highs reaching up to 6°C (44°F) and lows dropping to around -22°C (-7°F).

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

December Precipitation in Hallsta

In Hallsta in December, the total precipitation amount is 61 mm (2.4 in), which occurs over a span of 12 days.

December Precipitation Trends in Hallsta

The chart displays monthly precipitation patterns in Hallsta, 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 Hallsta, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 12 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 Hallsta

In Hallsta in December humidity is 100%. With an average temperature of -4°C (25°F), this humidity feels like walking through a dense fog; every breath is heavy with moisture, making it challenging to stay warm and comfortable while traveling.

December Average Humidity in Hallsta

This chart illustrates the average monthly humidity levels in Hallsta, 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 Hallsta is approximately 100%, 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 Hallsta

In Hallsta 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 Hallsta.

Maximum UV Index Levels in Hallsta for December

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

Data source: Hallsta 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 Hallsta Compares to Other Months

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

This table compares monthly weather conditions in Hallsta, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	45 mm (1.8 inches)	99%	low
February Weather	-6°C (22°F)	31 mm (1.2 inches)	97%	low
March Weather	-2°C (28°F)	41 mm (1.6 inches)	94%	moderate
April Weather	2°C (36°F)	31 mm (1.2 inches)	89%	moderate
May Weather	7°C (45°F)	52 mm (2.0 inches)	86%	moderate
June Weather	13°C (56°F)	72 mm (2.8 inches)	81%	high
July Weather	15°C (59°F)	80 mm (3.1 inches)	82%	high
August Weather	14°C (57°F)	70 mm (2.8 inches)	90%	moderate
September Weather	9°C (49°F)	78 mm (3.1 inches)	92%	moderate
October Weather	4°C (40°F)	74 mm (2.9 inches)	95%	low
November Weather	-1°C (31°F)	45 mm (1.8 inches)	98%	low
December Weather	-4°C (25°F)	61 mm (2.4 inches)	100%	low