August in Cocoa Beach is the rainiest month of the year. In August, the weather in Cocoa Beach is typically hot. Average daily high temperature in August is about 29 degrees above zero. On average, Cocoa Beach has 23 rainy, 4 sunny, 3 partly cloudy, and 1 cloudy day in August. The rains are usually heavy. August as well as June, July, and September is considered the most uncomfortable time to visit Cocoa Beach.