December Weather in Hollola, Finland

Last updated: August 23, 2025

In December, the average temperature in Hollola, Finland hovers around -2°C (28°F), with temperatures dipping as low as -21°C (-5°F) and occasionally reaching up to 5°C (42°F). Visitors can expect a fair amount of precipitation, averaging 70 mm (2.8 in) over 15 days. The humidity is notably high at 96%, making for a chilly and damp atmosphere.

December Temperature in Hollola

In December in Hollola, the average temperature is -2°C (28°F). Maximum can reach 5°C (42°F), and minimum can be as low as -21°C (-5°F). Be sure to pack warm clothing and prepare for chilly conditions if you plan on traveling to Hollola during this time.

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

The chart illustrates December temperature patterns in Hollola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hollola, December typically has an average temperature of -2°C (28°F), with highs reaching up to 5°C (42°F) and lows dropping to around -21°C (-5°F).

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

December Precipitation in Hollola

In Hollola in December, the total precipitation amount reaches 70 mm (2.8 in) over the course of 15 days.

December Precipitation Trends in Hollola

The chart displays monthly precipitation patterns in Hollola, 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 Hollola, December typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 15 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 Hollola

In Hollola in December humidity is 96%. With an average temperature of -2°C (28°F), this humidity feels like a suffocating blanket draped over you, making each breath feel heavy and cold, which can be quite challenging for traveling.

December Average Humidity in Hollola

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

In Hollola 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 Hollola.

Maximum UV Index Levels in Hollola for December

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

Data source: Hollola 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 Hollola Compares to Other Months

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

This table compares monthly weather conditions in Hollola, 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 (25°F)	49 mm (1.9 inches)	98%	low
February Weather	-5°C (24°F)	44 mm (1.7 inches)	96%	low
March Weather	-2°C (29°F)	45 mm (1.8 inches)	93%	moderate
April Weather	3°C (38°F)	47 mm (1.9 inches)	87%	moderate
May Weather	10°C (50°F)	56 mm (2.2 inches)	75%	moderate
June Weather	16°C (61°F)	64 mm (2.5 inches)	74%	high
July Weather	17°C (64°F)	80 mm (3.1 inches)	80%	high
August Weather	16°C (61°F)	81 mm (3.2 inches)	85%	moderate
September Weather	11°C (52°F)	65 mm (2.6 inches)	90%	moderate
October Weather	6°C (43°F)	79 mm (3.1 inches)	94%	low
November Weather	2°C (36°F)	54 mm (2.1 inches)	94%	low
December Weather	-2°C (28°F)	70 mm (2.8 inches)	96%	low