January in Salon-de-Provence is the coldest month of the year. In January, the weather in Salon-de-Provence is typically cold. Average daily high temperature in January is about 9 degrees above zero. On average, Salon-de-Provence has 14 sunny, 12 partly cloudy, and 5 rainy days in January. The rains are usually light. January as well as February and December is considered the most uncomfortable time to visit Salon-de-Provence.