In December, the weather in Andorra la Vella is typically cold. Average daily high temperature in December is about 3 degrees above zero. On average, Andorra la Vella has 9 partly cloudy, 8 rainy, 7 sunny, and 7 cloudy days in December. The rains are usually light. December as well as January, February, March, and April is considered the most uncomfortable time to visit Andorra la Vella.