In September, the weather in Selva di Val Gardena is typically warm. Average daily high temperature in September is about 13 degrees above zero. On average, Selva di Val Gardena has 14 rainy, 10 sunny, 5 partly cloudy, and 1 cloudy day in September. The rains are usually heavy. September as well as March, April, May, and June is considered the most uncomfortable time to visit Selva di Val Gardena.