April in Sirkka is the cloudiest month of the year. In April, the weather in Sirkka is typically cold. Average daily high temperature in April is about 1 degree above zero. On average, Sirkka has 13 cloudy, 9 rainy, 6 snowy, and 2 sunny days in April. The rains are usually moderate. April as well as January, February, May, and June is considered the most uncomfortable time to visit Sirkka.