January Weather in Heinola, Finland

Last updated: August 23, 2025

In Heinola, Finland, the average temperature in January hovers around -4°C (25°F). Be prepared for chilly days, as temperatures can plunge to a bone-chilling -25°C (-14°F), while occasionally peaking at a milder 7°C (45°F). Expect 47 mm (1.9 in) of precipitation spread over 12 days, contributing to a high average humidity of 98%. Stay warm and dry during your visit!

January Temperature in Heinola

In January in Heinola, the average temperature is -4°C (25°F). Maximums can reach 7°C (45°F), while minimums can drop as low as -25°C (-14°F). Travelers should be prepared for cold conditions and dress warmly to fully enjoy the winter activities.

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

The chart illustrates January temperature patterns in Heinola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Heinola, January typically has an average temperature of -4°C (25°F), with highs reaching up to 7°C (45°F) and lows dropping to around -25°C (-14°F).

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

January Precipitation in Heinola

In Heinola in January, the total precipitation amount reaches 47 mm (1.9 in) over the course of 12 days.

January Precipitation Trends in Heinola

The chart displays monthly precipitation patterns in Heinola, 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 Heinola, January typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 12 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 Heinola

In Heinola in January 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.

January Average Humidity in Heinola

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

In Heinola 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 Heinola.

Maximum UV Index Levels in Heinola for January

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

Data source: Heinola 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 Heinola Compares to Other Months

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

This table compares monthly weather conditions in Heinola, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	47 mm (1.9 inches)	98%	low
February Weather	-5°C (23°F)	44 mm (1.7 inches)	96%	low
March Weather	-2°C (29°F)	43 mm (1.7 inches)	93%	moderate
April Weather	3°C (38°F)	47 mm (1.8 inches)	87%	moderate
May Weather	9°C (49°F)	56 mm (2.2 inches)	75%	moderate
June Weather	15°C (60°F)	62 mm (2.5 inches)	74%	high
July Weather	17°C (63°F)	80 mm (3.1 inches)	80%	high
August Weather	16°C (61°F)	87 mm (3.4 inches)	85%	moderate
September Weather	11°C (52°F)	64 mm (2.5 inches)	90%	moderate
October Weather	6°C (43°F)	77 mm (3.0 inches)	94%	low
November Weather	2°C (36°F)	54 mm (2.1 inches)	94%	low
December Weather	-2°C (28°F)	69 mm (2.7 inches)	96%	low