January in Minsk Mazowiecki is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Minsk Mazowiecki is typically freezing. Average daily high temperature in January is about 1 degree below zero. On average, Minsk Mazowiecki has 15 snowy, 12 cloudy, 3 rainy, and 1 sunny day in January. The snowfalls are usually moderate.