March in Split is the rainiest month of the year. In March, the weather in Split is typically warm. Average daily high temperature in March is about 13 degrees above zero. On average, Split has 13 sunny, 11 rainy, 6 partly cloudy, and 1 cloudy day in March. The rains are usually moderate. March as well as January, February, November, and December is considered the most uncomfortable time to visit Split.