May in Vrchlabi is the rainiest month of the year. In May, the weather in Vrchlabi is typically warm. Average daily high temperature in May is about 15 degrees above zero. On average, Vrchlabi has 23 rainy, 6 sunny, and 2 partly cloudy days in May. The rains are usually heavy. May as well as March, April, June, and July is considered the most uncomfortable time to visit Vrchlabi.