May weather forecast in Jablonec nad Nisou

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