January in Japishan is the windiest and the coldest month of the year. In January, the weather in Japishan is typically cold. Average daily high temperature in January is about 5 degrees above zero. On average, Japishan has 10 cloudy, 10 partly cloudy, 9 sunny, and 2 rainy days in January. The rains are usually light. January as well as February and December is considered the most uncomfortable time to visit Japishan.