March in Vilnius is the rainiest month of the year. In March, the weather in Vilnius is typically cold. Average daily high temperature in March is about 3 degrees above zero. On average, Vilnius has 18 rainy, 9 cloudy, 3 sunny, and 1 snowy day in March. The rains are usually light. March as well as April, May, October, and November is considered the most uncomfortable time to visit Vilnius.