In March, the weather in Hamar is typically cold. Average daily high temperature in March is about 1 degree above zero. On average, Hamar has 15 cloudy, 5 rainy, 5 sunny, 4 snowy, and 2 partly cloudy days in March. The rains are usually light. March as well as April, May, July, and August is considered the most uncomfortable time to visit Hamar.