March in Lewes is the cloudiest month of the year. In March, the weather in Lewes is typically warm. Average daily high temperature in March is about 10 degrees above zero. On average, Lewes has 12 rainy, 9 partly cloudy, 7 cloudy, and 3 sunny days in March. The rains are usually moderate. March as well as January, February, April, and October is considered the most uncomfortable time to visit Lewes.