April in Krakow is the rainiest month of the year. In April, the weather in Krakow is typically warm. Average daily high temperature in April is about 13 degrees above zero. On average, Krakow has 12 rainy, 10 sunny, 6 partly cloudy, and 2 cloudy days in April. The rains are usually light. April as well as January, February, March, and December is considered the most uncomfortable time to visit Krakow.