March in Boca Raton is the windiest and the sunniest month of the year. In March, the weather in Boca Raton is typically warm. Average daily high temperature in March is about 24 degrees above zero. On average, Boca Raton has 19 sunny, 6 rainy, and 6 partly cloudy days in March. The rains are usually moderate. March as well as February and December is considered the most comfortable time to visit Boca Raton.