In March, the weather in Rostov-na-Donu is typically cold. Average daily high temperature in March is about 7 degrees above zero. On average, Rostov-na-Donu has 14 rainy, 12 cloudy, 3 sunny, and 2 partly cloudy days in March. The rains are usually moderate. March as well as February and December is considered the most uncomfortable time to visit Rostov-na-Donu.