In September, the weather in Strbské Pleso is typically warm. Average daily high temperature in September is about 15 degrees above zero. On average, Strbské Pleso has 14 rainy, 6 sunny, 6 cloudy, and 4 partly cloudy days in September. The rains are usually heavy. September as well as February, March, April, and May is considered the most uncomfortable time to visit Strbské Pleso.