In May, the weather in Kalpitiya is typically hot. Average daily high temperature in May is about 30 degrees above zero. On average, Kalpitiya has 15 rainy, 6 sunny, 6 cloudy, and 4 partly cloudy days in May. The rains are usually heavy. May as well as April, September, October, and November is considered the most uncomfortable time to visit Kalpitiya.