Typically, March in Key Largo, Florida, presents a transition from the dry season to the wetter, warmer months. Visitors can expect comfortable daytime temperatures averaging in the low 80s Fahrenheit (high 20s Celsius), with cooler evenings in the low 70s Fahrenheit (low 20s Celsius). Rainfall remains relatively low, making it an appealing time for outdoor activities. The sea temperature is generally pleasant for swimming and water sports.
This period offers a desirable balance of warm, sunny days and comfortable nights. The lower humidity and reduced rainfall compared to the summer months create ideal conditions for exploring the natural beauty of the Florida Keys. Historically, March has been a popular time for tourism in the region, contributing significantly to the local economy. Favorable weather conditions allow for a range of activities, from diving and snorkeling in the coral reefs to fishing and kayaking in the tranquil waters.