August in Sri Jayawardenapura Kotte is the coldest month of the year. In August, the weather in Sri Jayawardenapura Kotte is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Sri Jayawardenapura Kotte has 30 rainy and 1 sunny day in August. The rains are usually heavy. August as well as March, April, May, and June is considered the most uncomfortable time to visit Sri Jayawardenapura Kotte.