April in Bayreuth is the sunniest month of the year. In April, the weather in Bayreuth is typically warm. Average daily high temperature in April is about 13 degrees above zero. On average, Bayreuth has 12 rainy, 7 sunny, 6 cloudy, and 5 partly cloudy days in April. The rains are usually moderate. April as well as January, February, March, and May is considered the most uncomfortable time to visit Bayreuth.