March in Bern is the windiest and the sunniest month of the year. In March, the weather in Bern is typically warm. Average daily high temperature in March is about 10 degrees above zero. On average, Bern has 12 rainy, 8 sunny, 8 partly cloudy, and 3 cloudy days in March. The rains are usually heavy. March as well as January, February, April, and May is considered the most uncomfortable time to visit Bern.