January weather forecast in Helsinki

January in Helsinki is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Helsinki is typically freezing. Average daily high temperature in January is about 3 degrees below zero. On average, Helsinki has 19 snowy, 9 cloudy, 1 rainy, 1 sunny, and 1 partly cloudy day in January. The snowfalls are usually moderate.