January weather forecast in Jaca

January in Jaca is the snowiest and the coldest month of the year. In January, the weather in Jaca is typically cold. Average daily high temperature in January is about 5 degrees above zero. On average, Jaca has 9 rainy, 8 sunny, 8 partly cloudy, 5 cloudy, and 1 snowy day in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Jaca.