Key Colony Beach is part of Marathon Key, which is a 10-mile stretch of island two hours south of Miami International Airport in the middle of the Keys island chain. With its crystal aquamarine waters, warm ocean breezes, and slow island living, it’s a place filled with endless possibilities!

Fishing and boating abound in this tropical paradise, not to mention the delicious seafood restaurants available in town. Whether the purpose of your trip is to spend time with family or a romantic getaway, the options here are endless.

Enjoy an old-Keys lifestyle with annual seafood festivals, waterside restaurants that harvest fresh fish, lobster and stone crab claws from local waters, and a community filled with nothing but friendly locals and happy smiles.

When you need an excursion, you can drive one hour to visit Key West and the home of Ernest Hemingway.

Marathon enjoys a tropical climate throughout the year. March to May brings warm temperatures and low humidity, making it an ideal time to explore the area's beautiful beaches, partake in water sports, and experience the vibrant marine life. This season is perfect for snorkeling, diving, and enjoying the pleasant spring weather.

June to August features hot temperatures ideal for enjoying Marathon’s beaches, boating, and outdoor festivals. This period is great for immersing yourself in the warm waters and vibrant local culture. September to November offers slightly cooler temperatures and a more relaxed atmosphere, making it an excellent time to explore the Keys' natural beauty, engage in water activities, and enjoy fewer crowds. December to February brings mild weather with cooler evenings, providing a serene setting for fishing, beachcombing, and experiencing the charming, laid-back vibe of Marathon.

WEATHER: Monthly Averages