February in Trondheim is the cloudiest month of the year. In February, the weather in Trondheim is typically freezing. Average daily high temperature in February is about zero. On average, Trondheim has 10 snowy, 8 rainy, 5 cloudy, 4 sunny, and 2 partly cloudy days in February. The snowfalls are usually moderate. February as well as March, April, May, and June is considered the most uncomfortable time to visit Trondheim.