May in Kalush is the rainiest month of the year. In May, the weather in Kalush is typically warm. Average daily high temperature in May is about 18 degrees above zero. On average, Kalush has 15 rainy, 12 sunny, 3 partly cloudy, and 1 cloudy day in May. The rains are usually moderate. May as well as January, February, March, and April is considered the most uncomfortable time to visit Kalush.