March in Sisak is the windiest month of the year. In March, the weather in Sisak is typically warm. Average daily high temperature in March is about 11 degrees above zero. On average, Sisak has 11 rainy, 9 sunny, 9 partly cloudy, and 2 cloudy days in March. The rains are usually moderate. March as well as January, February, and December is considered the most uncomfortable time to visit Sisak.