January in Písek is the snowiest, the cloudiest, and the coldest month of the year. In January, the weather in Písek is typically cold. Average daily high temperature in January is about zero. On average, Písek has 15 cloudy, 5 rainy, 4 snowy, 4 sunny, and 3 partly cloudy days in January. The rains are usually light. January as well as February, March, November, and December is considered the most uncomfortable time to visit Písek.