May in Brumov-Bylnice is the rainiest month of the year. In May, the weather in Brumov-Bylnice is typically warm. Average daily high temperature in May is about 16 degrees above zero. On average, Brumov-Bylnice has 16 rainy, 11 sunny, and 4 partly cloudy days in May. The rains are usually moderate. May as well as February, March, April, and November is considered the most uncomfortable time to visit Brumov-Bylnice.