March in Ostrov is the rainiest month of the year. In March, the weather in Ostrov is typically cold. Average daily high temperature in March is about 1 degree above zero. On average, Ostrov has 13 rainy, 12 cloudy, 4 snowy, and 2 sunny days in March. The rains are usually light. March as well as April and November is considered the most uncomfortable time to visit Ostrov.