In March, the weather in Bydgoszcz is typically cold. Average daily high temperature in March is about 6 degrees above zero. On average, Bydgoszcz has 9 cloudy, 9 partly cloudy, 7 rainy, 5 sunny, and 1 snowy day in March. The rains are usually light. March as well as January, February, October, and November is considered the most uncomfortable time to visit Bydgoszcz.