August in Campos dos Goytacazes is the sunniest month of the year. In August, the weather in Campos dos Goytacazes is typically warm. Average daily high temperature in August is about 25 degrees above zero. On average, Campos dos Goytacazes has 20 sunny, 7 partly cloudy, and 4 rainy days in August. The rains are usually light. August as well as May, June, July, and September is considered the most comfortable time to visit Campos dos Goytacazes.