January in Kostino is the most freezing month of the year. In January, the weather in Kostino is typically freezing. Average daily high temperature in January is about 16 degrees below zero. On average, Kostino has 21 cloudy, 5 snowy, 3 sunny, and 2 partly cloudy days in January. The snowfalls are usually light. January as well as February, April, May, and September is considered the most uncomfortable time to visit Kostino.