January in Sumon Bay-Dagsky is the sunniest and the most freezing month of the year. In January, the weather in Sumon Bay-Dagsky is typically freezing. Average daily high temperature in January is about 16 degrees below zero. On average, Sumon Bay-Dagsky has 20 sunny and 11 partly cloudy days in January. January as well as February and December is considered the most uncomfortable time to visit Sumon Bay-Dagsky.