August in Vasco da Gama is the coldest month of the year. In August, the weather in Vasco da Gama is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Vasco da Gama has 30 rainy and 1 sunny day in August. The rains are usually heavy. August as well as June, July, and September is considered the most uncomfortable time to visit Vasco da Gama.