March in Rogaška Slatina is the windiest month of the year. In March, the weather in Rogaška Slatina is typically warm. Average daily high temperature in March is about 11 degrees above zero. On average, Rogaška Slatina has 11 partly cloudy, 9 rainy, 8 sunny, and 3 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 Rogaška Slatina.