May in Palatka is the cloudiest month of the year. In May, the weather in Palatka is typically cold. Average daily high temperature in May is about 5 degrees above zero. On average, Palatka has 13 cloudy, 10 rainy, 4 sunny, and 4 partly cloudy days in May. The rains are usually light. May as well as January, February, March, and September is considered the most uncomfortable time to visit Palatka.