In March, the weather in Ostrovets is typically cold. Average daily high temperature in March is about 3 degrees above zero. On average, Ostrovets has 15 rainy, 10 cloudy, 3 sunny, 2 snowy, and 1 partly cloudy day in March. The rains are usually light. March as well as April, May, October, and November is considered the most uncomfortable time to visit Ostrovets.