December in Ebbw Vale is the windiest month of the year. In December, the weather in Ebbw Vale is typically cold. Average daily high temperature in December is about 6 degrees above zero. On average, Ebbw Vale has 22 rainy, 5 cloudy, 3 sunny, and 1 partly cloudy day in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Ebbw Vale.