January weather forecast in Sian

January in Sian is the sunniest and the most freezing month of the year. In January, the weather in Sian is typically freezing. Average daily high temperature in January is about 20 degrees below zero. On average, Sian has 15 partly cloudy, 13 sunny, and 3 cloudy days in January. January as well as February, November, and December is considered the most uncomfortable time to visit Sian.