June in Sirkka is the rainiest month of the year. In June, the weather in Sirkka is typically warm. Average daily high temperature in June is about 13 degrees above zero. On average, Sirkka has 19 rainy, 8 cloudy, and 3 sunny days in June. The rains are usually moderate. June as well as January, February, April, and May is considered the most uncomfortable time to visit Sirkka.