December Weather in Maentyharju, Finland

Last updated: August 23, 2025

In December, the average temperature in Maentyharju, Finland hovers around -3°C (27°F), with a minimum dipping as low as -21°C (-6°F) and a maximum reaching up to 5°C (41°F). Expect a precipitation amount of 68 mm (2.7 in) over approximately 14 days, paired with high average humidity at 96%. Prepare for a cold and damp month!

December Temperature in Maentyharju

In December in Maentyharju, the average temperature is -3°C (27°F), with maximums reaching 5°C (41°F) and minimums dropping as low as -21°C (-6°F). Be sure to pack warm clothing if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Maentyharju, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Maentyharju, 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 (-6°F).

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

December Precipitation in Maentyharju

In Maentyharju in December, the precipitation amount is 68 mm (2.7 in) distributed over a period of 14 days.

December Precipitation Trends in Maentyharju

The chart displays monthly precipitation patterns in Maentyharju, 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 Maentyharju, December typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 14 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Maentyharju

In Maentyharju 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 Maentyharju

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

In Maentyharju 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 Maentyharju.

Maximum UV Index Levels in Maentyharju for December

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

Data source: Maentyharju 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 Maentyharju Compares to Other Months

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

This table compares monthly weather conditions in Maentyharju, 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	-6°C (22°F)	46 mm (1.8 inches)	96%	low
March Weather	-2°C (28°F)	44 mm (1.7 inches)	93%	moderate
April Weather	3°C (37°F)	45 mm (1.8 inches)	87%	moderate
May Weather	10°C (50°F)	55 mm (2.2 inches)	75%	moderate
June Weather	16°C (61°F)	63 mm (2.5 inches)	74%	high
July Weather	18°C (64°F)	84 mm (3.3 inches)	80%	high
August Weather	16°C (61°F)	91 mm (3.6 inches)	85%	moderate
September Weather	11°C (52°F)	68 mm (2.7 inches)	90%	moderate
October Weather	6°C (43°F)	75 mm (3.0 inches)	94%	low
November Weather	2°C (35°F)	52 mm (2.1 inches)	94%	low
December Weather	-3°C (27°F)	68 mm (2.7 inches)	96%	low