May in Sopot is the rainiest and the cloudiest month of the year. In May, the weather in Sopot is typically warm. Average daily high temperature in May is about 19 degrees above zero. On average, Sopot has 18 rainy, 6 sunny, 6 partly cloudy, and 1 cloudy day in May. The rains are usually heavy. May as well as January, February, March, and April is considered the most uncomfortable time to visit Sopot.