April in Lviv is the rainiest month of the year. In April, the weather in Lviv is typically warm. Average daily high temperature in April is about 13 degrees above zero. On average, Lviv has 21 rainy, 7 sunny, and 2 partly cloudy days in April. The rains are usually moderate. April as well as February, March, November, and December is considered the most uncomfortable time to visit Lviv.