April in Shumerlya is the rainiest month of the year. In April, the weather in Shumerlya is typically cold. Average daily high temperature in April is about 9 degrees above zero. On average, Shumerlya has 15 rainy, 10 cloudy, 4 sunny, and 1 partly cloudy day in April. The rains are usually moderate. April as well as January, October, and November is considered the most uncomfortable time to visit Shumerlya.