June in Rovaniemi is the rainiest month of the year. In June, the weather in Rovaniemi is typically warm. Average daily high temperature in June is about 14 degrees above zero. On average, Rovaniemi has 17 rainy, 5 sunny, 5 cloudy, and 3 partly cloudy days in June. The rains are usually moderate. June as well as January, April, May, and August is considered the most uncomfortable time to visit Rovaniemi.