In March, the weather in Kostiantynivka is typically cold. Average daily high temperature in March is about 6 degrees above zero. On average, Kostiantynivka has 11 cloudy, 9 rainy, 6 partly cloudy, and 5 sunny days in March. The rains are usually light. March as well as February, November, and December is considered the most uncomfortable time to visit Kostiantynivka.