In December, the weather in Sri Jayawardenapura Kotte is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Sri Jayawardenapura Kotte has 25 rainy, 4 sunny, 1 cloudy, and 1 partly cloudy day in December. The rains are usually heavy. December as well as March, April, May, and June is considered the most uncomfortable time to visit Sri Jayawardenapura Kotte.