In August, the weather in Kuoloyarvi is typically warm. Average daily high temperature in August is about 14 degrees above zero. On average, Kuoloyarvi has 16 rainy, 7 cloudy, 5 sunny, and 3 partly cloudy days in August. The rains are usually moderate. August as well as January, April, May, and June is considered the most uncomfortable time to visit Kuoloyarvi.