In June, the weather in Demänovska Dolina is typically warm. Average daily high temperature in June is about 17 degrees above zero. On average, Demänovska Dolina has 22 rainy, 7 sunny, and 1 partly cloudy day in June. The rains are usually heavy. June as well as March, April, May, and October is considered the most uncomfortable time to visit Demänovska Dolina.