December weather forecast in Unawatuna

In December, the weather in Unawatuna is typically warm. Average daily high temperature in December is about 27 degrees above zero. On average, Unawatuna has 20 rainy, 6 sunny, and 5 partly cloudy days in December. The rains are usually heavy. December as well as March, April, May, and June is considered the most uncomfortable time to visit Unawatuna.