In December, the weather in Tossa de Mar is typically warm. Average daily high temperature in December is about 13 degrees above zero. On average, Tossa de Mar has 13 sunny, 10 partly cloudy, 7 rainy, and 1 cloudy day in December. The rains are usually moderate. December as well as January, February, March, and April is considered the most uncomfortable time to visit Tossa de Mar.