January Weather in Ruukki, Finland

Last updated: August 23, 2025

In January, the average temperature in Ruukki, Finland hovers around -7°C (20°F). Temperatures can plummet to a chilling -30°C (-23°F), while the mercury can rise to a maximum of 6°C (42°F). Expect about 36 mm (1.4 in) of precipitation over 9 days, and brace yourself for high humidity levels averaging an astonishing 99%.

January Temperature in Ruukki

In January in Ruukki, the average temperature is -7°C (20°F), with maximums reaching 6°C (42°F) and minimums dropping as low as -30°C (-23°F). Travelers should prepare for a chilly experience and dress warmly to fully enjoy the winter wonderland.

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

The chart illustrates January temperature patterns in Ruukki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ruukki, January typically has an average temperature of -7°C (20°F), with highs reaching up to 6°C (42°F) and lows dropping to around -30°C (-23°F).

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

January Precipitation in Ruukki

In Ruukki in January, the precipitation amount is 36 mm (1.4 in) over the course of 9 days.

January Precipitation Trends in Ruukki

The chart displays monthly precipitation patterns in Ruukki, 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 Ruukki, January typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 9 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 Ruukki

In Ruukki in January humidity is 99%. With an average temperature of -7°C (20°F), this humidity feels like an icy dagger against the skin, making every breath a challenge and turning outdoor adventures into a test of resilience.

January Average Humidity in Ruukki

This chart illustrates the average monthly humidity levels in Ruukki, 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 Ruukki is approximately 99%, 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 Ruukki

In Ruukki 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 Ruukki.

Maximum UV Index Levels in Ruukki for January

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

Data source: Ruukki 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 Ruukki Compares to Other Months

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

This table compares monthly weather conditions in Ruukki, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	36 mm (1.4 inches)	99%	low
February Weather	-8°C (18°F)	36 mm (1.4 inches)	97%	low
March Weather	-4°C (26°F)	36 mm (1.4 inches)	93%	moderate
April Weather	1°C (34°F)	36 mm (1.4 inches)	86%	moderate
May Weather	7°C (46°F)	52 mm (2.1 inches)	80%	moderate
June Weather	14°C (58°F)	53 mm (2.1 inches)	76%	high
July Weather	17°C (62°F)	74 mm (2.9 inches)	79%	high
August Weather	14°C (58°F)	92 mm (3.6 inches)	83%	moderate
September Weather	10°C (50°F)	70 mm (2.8 inches)	89%	moderate
October Weather	4°C (40°F)	77 mm (3.0 inches)	94%	low
November Weather	0°C (32°F)	57 mm (2.2 inches)	94%	low
December Weather	-4°C (25°F)	50 mm (2.0 inches)	98%	low