January in Kosh-Agach is the sunniest and the most freezing month of the year. In January, the weather in Kosh-Agach is typically freezing. Average daily high temperature in January is about 14 degrees below zero. On average, Kosh-Agach has 26 sunny and 5 partly cloudy days in January. January as well as February, April, November, and December is considered the most uncomfortable time to visit Kosh-Agach.