December Weather in Renko, Finland

Last updated: August 23, 2025

In December, the average temperature in Renko, Finland hovers around -2°C (29°F). During this time, temperatures can plummet to a chilling -20°C (-3°F) or rise to a milder 5°C (42°F). Expect a precipitation total of 62 mm (2.4 in) spread over approximately 13 days, with an average humidity level of a staggering 95%.

December Temperature in Renko

In December in Renko, the average temperature is -2°C (29°F), with maximums reaching 5°C (42°F) and minimums dipping as low as -20°C (-3°F). Travelers should prepare for cold weather conditions and dress warmly when visiting during this time.

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

The chart illustrates December temperature patterns in Renko, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Renko, December typically has an average temperature of -2°C (29°F), with highs reaching up to 5°C (42°F) and lows dropping to around -20°C (-3°F).

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

December Precipitation in Renko

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

December Precipitation Trends in Renko

The chart displays monthly precipitation patterns in Renko, 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 Renko, 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.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Renko

In Renko in December, humidity is 95%. With an average temperature of -2°C (29°F), this humidity feels like a cold, damp chill that seeps into your bones, making outdoor travel uncomfortable and necessitating extra layers to stay warm and dry.

December Average Humidity in Renko

This chart illustrates the average monthly humidity levels in Renko, 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 Renko is approximately 95%, 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 Renko

In Renko 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 Renko.

Maximum UV Index Levels in Renko for December

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

Data source: Renko 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 Renko Compares to Other Months

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

This table compares monthly weather conditions in Renko, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	48 mm (1.9 inches)	97%	low
February Weather	-5°C (24°F)	41 mm (1.6 inches)	95%	low
March Weather	-2°C (30°F)	42 mm (1.7 inches)	93%	moderate
April Weather	3°C (38°F)	45 mm (1.8 inches)	86%	moderate
May Weather	10°C (50°F)	59 mm (2.3 inches)	75%	moderate
June Weather	16°C (61°F)	69 mm (2.7 inches)	75%	high
July Weather	17°C (63°F)	84 mm (3.3 inches)	80%	high
August Weather	16°C (61°F)	80 mm (3.2 inches)	83%	moderate
September Weather	11°C (52°F)	64 mm (2.5 inches)	90%	moderate
October Weather	6°C (43°F)	75 mm (2.9 inches)	93%	low
November Weather	2°C (36°F)	52 mm (2.0 inches)	94%	low
December Weather	-2°C (29°F)	62 mm (2.4 inches)	95%	low