August in Kovalam is the coldest month of the year. In August, the weather in Kovalam is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Kovalam has 29 rainy, 1 sunny, and 1 cloudy day in August. The rains are usually heavy. August as well as April, May, June, and July is considered the most uncomfortable time to visit Kovalam.