August in Thiruvananthapuram is the coldest month of the year. In August, the weather in Thiruvananthapuram is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Thiruvananthapuram has 25 rainy, 3 cloudy, 2 partly cloudy, and 1 sunny 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 Thiruvananthapuram.