April in Osinovskaya is the rainiest and the windiest month of the year. In April, the weather in Osinovskaya is typically cold. Average daily high temperature in April is about 6 degrees above zero. On average, Osinovskaya has 15 rainy, 14 cloudy, and 1 sunny day in April. The rains are usually moderate. April as well as January, February, September, and October is considered the most uncomfortable time to visit Osinovskaya.