December in Obihiro is the snowiest month of the year. In December, the weather in Obihiro is typically freezing. Average daily high temperature in December is about 1 degree below zero. On average, Obihiro has 15 partly cloudy, 12 sunny, 3 snowy, and 1 rainy day in December. The snowfalls are usually moderate. December as well as March, April, and November is considered the most uncomfortable time to visit Obihiro.