December Weather in Tervo, Finland

Last updated: August 23, 2025

In December, the average temperature in Tervo, Finland hovers around -4°C (25°F). However, don't be surprised if temperatures plunge as low as -22°C (-8°F) or reach a maximum of 4°C (40°F). Be prepared for precipitation as well, with about 66 mm (2.6 in) expected over 14 days. With an average humidity of a whopping 98%, make sure you're ready for the chill!

December Temperature in Tervo

In December in Tervo, the average temperature is -4°C (25°F). The maximum can reach 4°C (40°F), while the minimum can drop as low as -22°C (-8°F). It's advisable to dress warmly and prepare for cold weather if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Tervo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tervo, December typically has an average temperature of -4°C (25°F), with highs reaching up to 4°C (40°F) and lows dropping to around -22°C (-8°F).

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

December Precipitation in Tervo

In Tervo in December, the precipitation amount is 66 mm (2.6 in) spread over a duration of 14 days.

December Precipitation Trends in Tervo

The chart displays monthly precipitation patterns in Tervo, 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 Tervo, December typically receives around 66 mm (2.6 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 Tervo

In Tervo in December humidity is 98%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that clings to your skin, making every step feel more laborious as you navigate through the frosty air, dampening your spirits as well as your clothes.

December Average Humidity in Tervo

This chart illustrates the average monthly humidity levels in Tervo, 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 Tervo is approximately 98%, 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 Tervo

In Tervo 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 Tervo.

Maximum UV Index Levels in Tervo for December

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

Data source: Tervo 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 Tervo Compares to Other Months

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

This table compares monthly weather conditions in Tervo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	48 mm (1.9 inches)	99%	low
February Weather	-7°C (20°F)	42 mm (1.7 inches)	97%	low
March Weather	-3°C (27°F)	41 mm (1.6 inches)	95%	moderate
April Weather	2°C (35°F)	44 mm (1.7 inches)	87%	moderate
May Weather	8°C (47°F)	55 mm (2.2 inches)	78%	moderate
June Weather	15°C (60°F)	59 mm (2.3 inches)	74%	high
July Weather	17°C (63°F)	78 mm (3.1 inches)	80%	high
August Weather	15°C (60°F)	95 mm (3.7 inches)	85%	moderate
September Weather	10°C (50°F)	88 mm (3.5 inches)	91%	moderate
October Weather	5°C (41°F)	85 mm (3.3 inches)	95%	low
November Weather	1°C (33°F)	73 mm (2.9 inches)	94%	low
December Weather	-4°C (25°F)	66 mm (2.6 inches)	98%	low