January in Svilengrad is the coldest month of the year. In January, the weather in Svilengrad is typically cold. Average daily high temperature in January is about 4 degrees above zero. On average, Svilengrad has 10 rainy, 8 sunny, 8 partly cloudy, and 5 cloudy days in January. The rains are usually heavy. January as well as March and December is considered the most uncomfortable time to visit Svilengrad.