August in Belluno is the cloudiest month of the year. In August, the weather in Belluno is typically warm. Average daily high temperature in August is about 18 degrees above zero. On average, Belluno has 26 rainy, 3 partly cloudy, and 2 cloudy days in August. The rains are usually heavy. August as well as April, May, June, and July is considered the most uncomfortable time to visit Belluno.