In December, the weather in Roseto degli Abruzzi is typically warm. Average daily high temperature in December is about 11 degrees above zero. On average, Roseto degli Abruzzi has 11 rainy, 10 sunny, 7 partly cloudy, and 3 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 Roseto degli Abruzzi.