What Is Key West’s Weather In December?

Key West in December: A Tropical Winter Wonderland


While the northern hemisphere braces for winter’s chill, Key West, Florida, offers a warm and inviting escape for travelers seeking a tropical paradise during the holiday season. December brings delightful weather, sunny skies, and a wide range of outdoor and cultural activities. This article delves into the weather in Key West during December and introduces you to the attractions and events that make this month an ideal time for a winter getaway in this vibrant island city.

Temperature in December

December in Key West boasts mild and comfortable temperatures, providing a welcome respite from the cold of the north. The average high temperature during the day typically ranges from 76°F to 79°F (24°C to 26°C), while the nighttime lows tend to stay above 65°F (18°C). These mild temperatures create an ideal environment for outdoor exploration and relaxation.

Precipitation and Rainfall

Key West experiences a low level of rainfall in December, with an average of about 2 inches (51 mm) of precipitation throughout the month. While there may be occasional rain showers, they are generally short and infrequent, allowing you to make the most of your outdoor activities.

Sunshine and Daylight

December in Key West offers ample sunshine, with around 7 hours of daily sunlight. The extended daylight period ensures plenty of time to explore the island’s natural beauty, historical sites, and outdoor pursuits.

Humidity and Wind

Relative humidity levels in Key West during December are comfortable, typically hovering around 70%. The island benefits from a gentle sea breeze, creating a pleasant environment for outdoor activities such as sailing, snorkeling, and beachfront strolls.

Water Temperature

The waters around Key West remain invitingly warm in December, with an average water temperature of around 74°F (23°C). This temperate water is ideal for swimming, snorkeling, and underwater adventures, allowing visitors to explore the region’s vibrant marine life and coral reefs comfortably.

Activities and Events

December in Key West offers a diverse range of activities and events, making it an ideal time for a holiday escape. Here are some recommendations:

  1. Beach Retreat: Enjoy the serene beauty of Key West’s beaches, including Smathers Beach and Fort Zachary Taylor State Park Beach.
  2. Water Adventures: Engage in water activities like snorkeling, diving, kayaking, paddleboarding, and parasailing in the warm, clear waters.
  3. Historical Exploration: Discover the island’s rich history at attractions like the Ernest Hemingway Home and Museum and the Key West Shipwreck Museum.
  4. Fishing: Enjoy fantastic fishing opportunities to catch species like tarpon, sailfish, and grouper.
  5. Festivals and Events: Embrace the holiday spirit at events like the Lighted Boat Parade and the Key West Holiday Historic Inn Tours.


Key West in December offers a tropical winter wonderland with mild temperatures, sunny skies, and a wide array of outdoor and cultural experiences. Whether you’re seeking a holiday beach vacation, water-based adventures, or historical exploration, the weather in Key West during December provides the perfect backdrop for a memorable winter escape. Immerse yourself in the natural beauty and vibrant culture of Key West during this delightful and festive month, and create lasting memories in this enchanting destination.

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