March weather forecast in Key Largo

March in Key Largo is the windiest month of the year. In March, the weather in Key Largo is typically warm. Average daily high temperature in March is about 24 degrees above zero. On average, Key Largo has 15 sunny, 9 partly cloudy, 6 rainy, and 1 cloudy day in March. The rains are usually moderate. March as well as January, February, and December is considered the most comfortable time to visit Key Largo.