May in Nilaveli is the hottest month of the year. In May, the weather in Nilaveli is typically hot. Average daily high temperature in May is about 32 degrees above zero. On average, Nilaveli has 19 rainy, 6 cloudy, 5 sunny, and 1 partly cloudy day in May. The rains are usually moderate. May as well as August, September, October, and November is considered the most uncomfortable time to visit Nilaveli.