April in Olesh is the rainiest month of the year. In April, the weather in Olesh is typically cold. Average daily high temperature in April is about 6 degrees above zero. On average, Olesh has 17 rainy, 11 cloudy, and 2 sunny days in April. The rains are usually light. April as well as January, September, and October is considered the most uncomfortable time to visit Olesh.