December in Annecy is the windiest month of the year. In December, the weather in Annecy is typically cold. Average daily high temperature in December is about 4 degrees above zero. On average, Annecy has 14 rainy, 11 sunny, 5 partly cloudy, and 1 cloudy day in December. The rains are usually heavy. December as well as January, February, March, and May is considered the most uncomfortable time to visit Annecy.