January in Rovaniemi is the most freezing month of the year. In January, the weather in Rovaniemi is typically freezing. Average daily high temperature in January is about 8 degrees below zero. On average, Rovaniemi has 16 cloudy, 11 snowy, 3 sunny, and 1 partly cloudy day in January. The snowfalls are usually light. January as well as April, May, June, and August is considered the most uncomfortable time to visit Rovaniemi.