January in Tomari is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Tomari is typically freezing. Average daily high temperature in January is about 9 degrees below zero. On average, Tomari has 19 snowy, 11 cloudy, and 1 sunny day in January. The snowfalls are usually light. January as well as February, April, May, and June is considered the most uncomfortable time to visit Tomari.