March in Ostrovnoye is the sunniest month of the year. In March, the weather in Ostrovnoye is typically freezing. Average daily high temperature in March is about 17 degrees below zero. On average, Ostrovnoye has 17 partly cloudy, 13 sunny, and 1 cloudy day in March. March as well as January, February, November, and December is considered the most uncomfortable time to visit Ostrovnoye.