December in Rosa Luxemburg is the windiest month of the year. In December, the weather in Rosa Luxemburg is typically freezing. Average daily high temperature in December is about zero. On average, Rosa Luxemburg has 15 cloudy, 8 snowy, 7 rainy, and 1 sunny day in December. The snowfalls are usually moderate. December as well as March and November is considered the most uncomfortable time to visit Rosa Luxemburg.