In December, the weather in Bosteri is typically freezing. Average daily high temperature in December is about 4 degrees below zero. On average, Bosteri has 10 cloudy, 9 partly cloudy, 6 snowy, and 6 sunny days in December. The snowfalls are usually light. December as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most comfortable time to visit Bosteri.