March in Tbilisi is the windiest month of the year. In March, the weather in Tbilisi is typically cold. Average daily high temperature in March is about 9 degrees above zero. On average, Tbilisi has 10 rainy, 8 sunny, 8 partly cloudy, and 5 cloudy days in March. The rains are usually moderate. March as well as January, February, April, and May is considered the most uncomfortable time to visit Tbilisi.