October in Dambulla is the rainiest month of the year. In October, the weather in Dambulla is typically hot. Average daily high temperature in October is about 31 degrees above zero. On average, Dambulla has 23 rainy, 4 partly cloudy, 2 sunny, and 2 cloudy days in October. The rains are usually heavy. October as well as April, May, June, and July is considered the most uncomfortable time to visit Dambulla.