December in Peniche is the windiest and the cloudiest month of the year. In December, the weather in Peniche is typically warm. Average daily high temperature in December is about 15 degrees above zero. On average, Peniche has 12 rainy, 8 partly cloudy, 6 sunny, and 5 cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Peniche.