March in Banja Luka is the windiest month of the year. In March, the weather in Banja Luka is typically warm. Average daily high temperature in March is about 11 degrees above zero. On average, Banja Luka has 10 sunny, 9 rainy, 9 partly cloudy, and 3 cloudy days in March. The rains are usually moderate. March as well as January, February, and December is considered the most uncomfortable time to visit Banja Luka.