December Weather in Arno, Sweden

Last updated: August 27, 2025

In December, the average temperature in Arno, Sweden hovers around 1°C (34°F), with temperatures dipping as low as -12°C (11°F) and climbing to a maximum of 10°C (50°F). This month also brings 62 mm (2.4 in) of precipitation over approximately 13 days, contributing to a notably high average humidity of 87%.

December Temperature in Arno

In December in Arno, the average temperature is 1°C (34°F). The maximum can reach 10°C (50°F), while the minimum can drop as low as -12°C (11°F). It's advisable to pack warm clothing and be prepared for cold weather conditions while traveling.

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

The chart illustrates December temperature patterns in Arno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arno, December typically has an average temperature of 1°C (34°F), with highs reaching up to 10°C (50°F) and lows dropping to around -12°C (11°F).

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

December Precipitation in Arno

In Arno in December, the precipitation amount is 62 mm (2.4 in) over the course of 13 days.

December Precipitation Trends in Arno

The chart displays monthly precipitation patterns in Arno, 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 Arno, December typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 13 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 Arno

In Arno in December humidity is 87%. With an average temperature of 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making every step outside feel heavy and damp, and leaving you longing for warmth and comfort while traveling.

December Average Humidity in Arno

This chart illustrates the average monthly humidity levels in Arno, 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 Arno is approximately 87%, 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 Arno

In Arno 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 Arno.

Maximum UV Index Levels in Arno for December

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

Data source: Arno 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 Arno Compares to Other Months

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

This table compares monthly weather conditions in Arno, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	38 mm (1.5 inches)	90%	low
February Weather	-1°C (31°F)	34 mm (1.3 inches)	88%	low
March Weather	1°C (35°F)	38 mm (1.5 inches)	89%	moderate
April Weather	4°C (40°F)	29 mm (1.2 inches)	85%	moderate
May Weather	9°C (49°F)	51 mm (2.0 inches)	77%	moderate
June Weather	15°C (60°F)	39 mm (1.6 inches)	76%	high
July Weather	17°C (63°F)	61 mm (2.4 inches)	74%	high
August Weather	17°C (63°F)	61 mm (2.4 inches)	77%	moderate
September Weather	13°C (55°F)	48 mm (1.9 inches)	85%	moderate
October Weather	8°C (47°F)	75 mm (2.9 inches)	89%	low
November Weather	4°C (40°F)	43 mm (1.7 inches)	90%	low
December Weather	1°C (34°F)	62 mm (2.4 inches)	87%	low