In December, the weather in Mosonmagyarovar is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Mosonmagyarovar has 10 partly cloudy, 9 cloudy, 6 sunny, 5 rainy, and 1 snowy day in December. The rains are usually moderate. December as well as January, February, March, and November is considered the most uncomfortable time to visit Mosonmagyarovar.