In September, the weather in Las Lenas is typically cold. Average daily high temperature in September is about 1 degree above zero. On average, Las Lenas has 12 sunny, 10 partly cloudy, 5 snowy, 2 rainy, and 1 cloudy day in September. The snowfalls are usually heavy. September as well as May, June, August, and October is considered the most uncomfortable time to visit Las Lenas.