January in Odesa is the rainiest, the snowiest, the cloudiest, and the coldest month of the year. In January, the weather in Odesa is typically cold. Average daily high temperature in January is about 1 degree above zero. On average, Odesa has 16 cloudy, 5 rainy, 4 snowy, 4 sunny, and 2 partly cloudy days in January. The rains are usually moderate. January as well as February, March, and December is considered the most uncomfortable time to visit Odesa.