December in Ozarow Mazowiecki is the windiest month of the year. In December, the weather in Ozarow Mazowiecki is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Ozarow Mazowiecki has 17 cloudy, 8 rainy, 5 snowy, and 1 sunny day in December. The rains are usually light. December as well as February, March, and November is considered the most uncomfortable time to visit Ozarow Mazowiecki.