August in Manta is the sunniest month of the year. In August, the weather in Manta is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, Manta has 13 partly cloudy, 12 cloudy, 3 rainy, and 3 sunny days in August. The rains are usually light. August as well as July, September, and October is considered the most comfortable time to visit Manta.