January in South Indian Lake is the most freezing month of the year. In January, the weather in South Indian Lake is typically freezing. Average daily high temperature in January is about 19 degrees below zero. On average, South Indian Lake has 16 cloudy, 6 snowy, 5 partly cloudy, and 4 sunny days in January. The snowfalls are usually light. January as well as February and December is considered the most uncomfortable time to visit South Indian Lake.