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 12 cloudy, 9 rainy, 5 sunny, and 5 partly cloudy days in March. The rains are usually light. March as well as February, November, and December is considered the most uncomfortable time to visit Bydgoszcz.