December in Aarhus is the windiest month of the year. In December, the weather in Aarhus is typically cold. Average daily high temperature in December is about 4 degrees above zero. On average, Aarhus has 20 rainy, 8 cloudy, and 3 sunny days in December. The rains are usually moderate. December as well as January, February, October, and November is considered the most uncomfortable time to visit Aarhus.