January in Ust-Aleus is the most freezing month of the year. In January, the weather in Ust-Aleus is typically freezing. Average daily high temperature in January is about 16 degrees below zero. On average, Ust-Aleus has 17 cloudy, 5 sunny, 5 partly cloudy, and 4 snowy days in January. The snowfalls are usually light. January as well as February, October, and December is considered the most uncomfortable time to visit Ust-Aleus.