March in Key West typically offers a delightful transition from winter to spring. Visitors can expect warm, sunny days with average high temperatures in the low 80s Fahrenheit (high 20s Celsius) and comfortable lows in the mid-70s Fahrenheit (low 20s Celsius). Sea temperatures are also pleasant, making water activities inviting. Rainfall is relatively low, with short-lived showers possible. This period experiences a moderate humidity level, making outdoor pursuits enjoyable.
This time of year presents an ideal opportunity to experience the island’s vibrant culture and natural beauty. The pleasant climate allows for comfortable exploration of historical sites, partaking in watersports, or simply relaxing on the beach. Historically, March has been a popular time for visitors seeking a respite from colder climates further north. The favorable conditions contribute significantly to the local economy and support tourism-related businesses.