January in Assy is the most freezing month of the year. In January, the weather in Assy is typically freezing. Average daily high temperature in January is about 11 degrees below zero. On average, Assy has 17 cloudy, 10 snowy, and 4 sunny days in January. The snowfalls are usually light. January as well as February, April, May, and September is considered the most uncomfortable time to visit Assy.