In March, the weather in Ostrovets is typically cold. Average daily high temperature in March is about 4 degrees above zero. On average, Ostrovets has 9 partly cloudy, 8 cloudy, 6 rainy, 6 sunny, and 2 snowy days in March. The rains are usually light. March as well as February, April, October, and November is considered the most uncomfortable time to visit Ostrovets.