January weather forecast in Unawatuna

January in Unawatuna is the coldest month of the year. In January, the weather in Unawatuna is typically warm. Average daily high temperature in January is about 27 degrees above zero. On average, Unawatuna has 14 rainy, 7 partly cloudy, 6 sunny, and 4 cloudy days in January. The rains are usually moderate.