November in Triest is the rainiest and the cloudiest month of the year. In November, the weather in Triest is typically warm. Average daily high temperature in November is about 11 degrees above zero. On average, Triest has 19 rainy, 8 sunny, and 3 partly cloudy days in November. The rains are usually heavy. November as well as January, February, and December is considered the most uncomfortable time to visit Triest.