January in Belo sur Mer is the rainiest month of the year. In January, the weather in Belo sur Mer is typically hot. Average daily high temperature in January is about 30 degrees above zero. On average, Belo sur Mer has 22 rainy and 9 sunny days in January. The rains are usually heavy. January as well as February is considered the most uncomfortable time to visit Belo sur Mer.