December Weather in As, Sweden

Last updated: August 27, 2025

In December, the average temperature in As, Sweden hovers around -4°C (25°F), showcasing winter’s chill. Temperatures can dip as low as -21°C (-6°F), while occasionally peaking at 7°C (44°F). Expect about 63 mm (2.5 in) of precipitation over 14 days, and be prepared for high humidity levels, averaging around 100%.

December Temperature in As

In December in As, the average temperature is -4°C (25°F). Maximum temperatures can reach 7°C (44°F), while minimums can drop to as low as -21°C (-6°F). Be prepared for cold weather and pack accordingly for your travels to As during this time.

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

The chart illustrates December temperature patterns in As, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In As, December typically has an average temperature of -4°C (25°F), with highs reaching up to 7°C (44°F) and lows dropping to around -21°C (-6°F).

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

December Precipitation in As

In As in December, the precipitation amount is 63 mm (2.5 in) over a span of 14 days.

December Precipitation Trends in As

The chart displays monthly precipitation patterns in As, 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 As, December typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 14 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 As

In As 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 As

This chart illustrates the average monthly humidity levels in As, 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 As 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 As

In As 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 As.

Maximum UV Index Levels in As for December

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

Data source: As 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 As Compares to Other Months

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

This table compares monthly weather conditions in As, 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)	51 mm (2.0 inches)	99%	low
February Weather	-5°C (22°F)	34 mm (1.3 inches)	97%	low
March Weather	-2°C (28°F)	47 mm (1.8 inches)	94%	moderate
April Weather	2°C (35°F)	31 mm (1.2 inches)	89%	moderate
May Weather	7°C (45°F)	50 mm (2.0 inches)	86%	moderate
June Weather	13°C (56°F)	67 mm (2.6 inches)	81%	high
July Weather	15°C (59°F)	80 mm (3.2 inches)	82%	high
August Weather	13°C (56°F)	75 mm (3.0 inches)	90%	moderate
September Weather	9°C (49°F)	79 mm (3.1 inches)	92%	moderate
October Weather	4°C (40°F)	79 mm (3.1 inches)	95%	low
November Weather	-1°C (31°F)	50 mm (2.0 inches)	98%	low
December Weather	-4°C (25°F)	63 mm (2.5 inches)	100%	low