In August, the weather in Ebbw Vale is typically warm. Average daily high temperature in August is about 16 degrees above zero. On average, Ebbw Vale has 22 rainy, 4 sunny, 4 cloudy, and 1 partly cloudy day in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Ebbw Vale.