March in Sisian is the windiest month of the year. In March, the weather in Sisian is typically cold. Average daily high temperature in March is about 1 degree above zero. On average, Sisian has 14 rainy, 6 sunny, 5 snowy, 4 cloudy, and 2 partly cloudy days in March. The rains are usually heavy. March as well as April, May, and October is considered the most uncomfortable time to visit Sisian.