August weather forecast in Rhyl

August in Rhyl is the warmest month of the year. In August, the weather in Rhyl is typically warm. Average daily high temperature in August is about 17 degrees above zero. On average, Rhyl has 17 rainy, 10 partly cloudy, 2 sunny, and 2 cloudy days in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Rhyl.