December Weather in Suomenniemi, Finland

Last updated: August 23, 2025

In Suomenniemi, Finland, the average temperature in December hovers around -3°C (27°F). Be prepared for chilly extremes, as temperatures can drop as low as -21°C (-5°F), while occasionally peaking at 5°C (41°F). With an average precipitation of 69 mm (2.7 in) spread across 15 days, and a high humidity of 96%, this month is marked by a cool, damp atmosphere.

December Temperature in Suomenniemi

In December in Suomenniemi, the average temperature is -3°C (27°F), with maximums reaching 5°C (41°F) and minimums plummeting to -21°C (-5°F). Be sure to dress warmly and prepare for cold weather conditions if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Suomenniemi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suomenniemi, December typically has an average temperature of -3°C (27°F), with highs reaching up to 5°C (41°F) and lows dropping to around -21°C (-5°F).

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

December Precipitation in Suomenniemi

In Suomenniemi in December, the precipitation amount is 69 mm (2.7 in) over the course of 15 days.

December Precipitation Trends in Suomenniemi

The chart displays monthly precipitation patterns in Suomenniemi, 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 Suomenniemi, December typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 15 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 Suomenniemi

In Suomenniemi in December humidity is 96%. With an average temperature of -3°C (27°F), this humidity feels like a biting cold that penetrates your clothes, making travel uncomfortable as the dampness clings to your skin and leaves you feeling chilled to the bone.

December Average Humidity in Suomenniemi

This chart illustrates the average monthly humidity levels in Suomenniemi, 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 Suomenniemi is approximately 96%, 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 Suomenniemi

In Suomenniemi 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 Suomenniemi.

Maximum UV Index Levels in Suomenniemi for December

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

Data source: Suomenniemi 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 Suomenniemi Compares to Other Months

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

This table compares monthly weather conditions in Suomenniemi, 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 (24°F)	47 mm (1.9 inches)	98%	low
February Weather	-5°C (23°F)	48 mm (1.9 inches)	96%	low
March Weather	-2°C (29°F)	44 mm (1.7 inches)	93%	moderate
April Weather	3°C (37°F)	43 mm (1.7 inches)	87%	moderate
May Weather	9°C (49°F)	54 mm (2.1 inches)	75%	moderate
June Weather	16°C (61°F)	59 mm (2.3 inches)	74%	high
July Weather	18°C (64°F)	81 mm (3.2 inches)	80%	high
August Weather	16°C (61°F)	89 mm (3.5 inches)	85%	moderate
September Weather	11°C (52°F)	67 mm (2.6 inches)	90%	moderate
October Weather	6°C (43°F)	76 mm (3.0 inches)	94%	low
November Weather	2°C (36°F)	49 mm (1.9 inches)	94%	low
December Weather	-3°C (27°F)	69 mm (2.7 inches)	96%	low