December in Blackpool is the cloudiest month of the year. In December, the weather in Blackpool is typically cold. Average daily high temperature in December is about 8 degrees above zero. On average, Blackpool has 24 rainy, 3 sunny, 2 cloudy, and 2 partly cloudy days in December. The rains are usually heavy. December as well as January, February, March, and August is considered the most uncomfortable time to visit Blackpool.