In December, the weather in Kurunegala is typically warm. Average daily high temperature in December is about 27 degrees above zero. On average, Kurunegala has 18 rainy, 5 partly cloudy, 4 sunny, and 4 cloudy days in December. The rains are usually heavy. December as well as April, May, June, and July is considered the most uncomfortable time to visit Kurunegala.