January Weather in Tarvasjoki, Finland

Last updated: August 23, 2025

In January, the average temperature in Tarvasjoki, Finland hovers around -2°C (28°F). Expect chilly conditions with minimum temperatures plummeting to -26°C (-14°F), while highs might reach up to 8°C (47°F). Precipitation can be expected, with 49 mm (1.9 in) over approximately 10 days, and average humidity is a notable 97%. Prepare for a frosty and damp month!

January Temperature in Tarvasjoki

In January in Tarvasjoki, the average temperature is -2°C (28°F), with maximums that can reach 8°C (47°F) and minimums that can plummet to -26°C (-14°F). Travelers should prepare for a wide range of temperatures and dress in layers to stay comfortable during their visit.

January Weather in Tarvasjoki: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Tarvasjoki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tarvasjoki, January typically has an average temperature of -2°C (28°F), with highs reaching up to 8°C (47°F) and lows dropping to around -26°C (-14°F).

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

January Precipitation in Tarvasjoki

In Tarvasjoki in January, the total precipitation amount is 49 mm (1.9 in) over the course of 10 days.

January Precipitation Trends in Tarvasjoki

The chart displays monthly precipitation patterns in Tarvasjoki, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Tarvasjoki, January typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 10 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Tarvasjoki

In Tarvasjoki in January, humidity is 97%. With an average temperature of -2°C (28°F), this humidity feels like a frigid fog that clings to your skin, making every step feel heavier and the cold air bite sharper; it can be quite challenging for traveling as you navigate the dampness that seeps into your clothes, leaving you feeling chilled and uncomfortable.

January Average Humidity in Tarvasjoki

This chart illustrates the average monthly humidity levels in Tarvasjoki, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Tarvasjoki is approximately 97%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Tarvasjoki

In Tarvasjoki in January, 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 Tarvasjoki.

Maximum UV Index Levels in Tarvasjoki for January

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

Data source: Tarvasjoki January 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 January Weather in Tarvasjoki Compares to Other Months

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

This table compares monthly weather conditions in Tarvasjoki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	49 mm (1.9 inches)	97%	low
February Weather	-4°C (26°F)	43 mm (1.7 inches)	95%	low
March Weather	0°C (31°F)	46 mm (1.8 inches)	93%	moderate
April Weather	4°C (40°F)	37 mm (1.4 inches)	86%	moderate
May Weather	10°C (50°F)	54 mm (2.1 inches)	75%	moderate
June Weather	16°C (62°F)	49 mm (1.9 inches)	75%	high
July Weather	18°C (64°F)	75 mm (2.9 inches)	80%	high
August Weather	16°C (62°F)	89 mm (3.5 inches)	83%	moderate
September Weather	12°C (53°F)	57 mm (2.2 inches)	90%	moderate
October Weather	7°C (44°F)	75 mm (2.9 inches)	93%	low
November Weather	3°C (38°F)	52 mm (2.1 inches)	94%	low
December Weather	-1°C (31°F)	70 mm (2.7 inches)	95%	low