January in Jerez de la Frontera is the coldest month of the year. In January, the weather in Jerez de la Frontera is typically warm. Average daily high temperature in January is about 14 degrees above zero. On average, Jerez de la Frontera has 16 sunny, 9 partly cloudy, 5 rainy, and 1 cloudy day in January. The rains are usually moderate. January as well as February is considered the most uncomfortable time to visit Jerez de la Frontera.