May in Zilina is the rainiest month of the year. In May, the weather in Zilina is typically warm. Average daily high temperature in May is about 15 degrees above zero. On average, Zilina has 16 rainy, 12 sunny, 2 partly cloudy, and 1 cloudy day in May. The rains are usually moderate. May as well as February, March, April, and November is considered the most uncomfortable time to visit Zilina.