In March, the weather in Siemianowice Slaskie is typically cold. Average daily high temperature in March is about 6 degrees above zero. On average, Siemianowice Slaskie has 13 rainy, 7 cloudy, 6 sunny, and 5 partly cloudy days in March. The rains are usually moderate. March as well as January, February, April, and May is considered the most uncomfortable time to visit Siemianowice Slaskie.