In April, the weather in Sibir is typically cold. Average daily high temperature in April is about 7 degrees above zero. On average, Sibir has 9 partly cloudy, 8 sunny, 6 rainy, 6 cloudy, and 1 snowy 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 Sibir.