August in Castrocielo is the sunniest and the warmest month of the year. In August, the weather in Castrocielo is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Castrocielo has 28 sunny, 2 rainy, and 1 partly cloudy day in August. The rains are usually heavy. August as well as July is considered the most comfortable time to visit Castrocielo.