December in Kalpitiya is the coldest month of the year. In December, the weather in Kalpitiya is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Kalpitiya has 24 rainy, 4 sunny, 2 partly cloudy, and 1 cloudy day in December. The rains are usually heavy. December as well as April, May, September, and October is considered the most uncomfortable time to visit Kalpitiya.