In April, the weather in Limburg an der Lahn is typically warm. Average daily high temperature in April is about 13 degrees above zero. On average, Limburg an der Lahn has 12 rainy, 9 partly cloudy, 6 sunny, and 3 cloudy days in April. The rains are usually moderate. April as well as January, February, March, and October is considered the most uncomfortable time to visit Limburg an der Lahn.