May in Lazise is the rainiest month of the year. In May, the weather in Lazise is typically warm. Average daily high temperature in May is about 19 degrees above zero. On average, Lazise has 20 rainy, 10 sunny, and 1 partly 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 Lazise.