January in Mariupol is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Mariupol is typically freezing. Average daily high temperature in January is about zero. On average, Mariupol has 17 cloudy, 5 partly cloudy, 3 rainy, 3 snowy, and 3 sunny days in January. The rains are usually moderate. January as well as February, March, November, and December is considered the most uncomfortable time to visit Mariupol.