May in Freetown is the hottest month of the year. In May, the weather in Freetown is typically hot. Average daily high temperature in May is about 28 degrees above zero. On average, Freetown has 19 rainy, 6 sunny, 5 partly cloudy, and 1 cloudy day in May. The rains are usually heavy. May as well as June, July, August, and September is considered the most uncomfortable time to visit Freetown.