December in Strasbourg is the rainiest and the windiest month of the year. In December, the weather in Strasbourg is typically cold. Average daily high temperature in December is about 5 degrees above zero. On average, Strasbourg has 17 rainy, 6 cloudy, 5 sunny, and 3 partly cloudy days in December. The rains are usually moderate. December as well as January and February is considered the most uncomfortable time to visit Strasbourg.