In April, the weather in Pfaffenhofen a.d.Ilm is typically warm. Average daily high temperature in April is about 13 degrees above zero. On average, Pfaffenhofen a.d.Ilm has 15 rainy, 8 sunny, 5 partly cloudy, and 2 cloudy days in April. The rains are usually heavy. April as well as January, February, March, and May is considered the most uncomfortable time to visit Pfaffenhofen a.d.Ilm.