February in Isilkul is the cloudiest month of the year. In February, the weather in Isilkul is typically freezing. Average daily high temperature in February is about 11 degrees below zero. On average, Isilkul has 25 cloudy, 3 snowy, and 1 sunny day in February. The snowfalls are usually light. February as well as January, October, and December is considered the most uncomfortable time to visit Isilkul.