Taking into account the local weather in Rostov is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually July and August with an average temp of 62°F, while the coldest months are January and February with an average of 20°F. The snowiest months in Rostov are December, November, February, and January, with each month seeing an average of 38 inches of snowfall.