In May, the weather in Herrljunga is typically warm. Average daily high temperature in May is about 15 degrees above zero. On average, Herrljunga has 13 rainy, 9 sunny, 6 partly cloudy, and 3 cloudy days in May. The rains are usually moderate. May as well as January, February, March, and April is considered the most uncomfortable time to visit Herrljunga.