December weather forecast in Lisbon

December in Lisbon is the cloudiest month of the year. In December, the weather in Lisbon is typically warm. Average daily high temperature in December is about 14 degrees above zero. On average, Lisbon has 11 rainy, 8 sunny, 8 partly cloudy, and 4 cloudy days in December. The rains are usually heavy. December as well as January, February, March, and November is considered the most uncomfortable time to visit Lisbon.