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Key West Temperature In December: A Guide To Weather, Activities, And Packing

Planning a trip to Key West in December? Get the lowdown on the temperature, weather trends, and factors that influence it. Find out what to pack and get insider tips for making the most of your visit.

Overview of Key West Temperature in December

Key West in December offers a pleasant climate with mild temperatures, making it an ideal destination for those seeking a break from the cold winter months. This section will provide an overview of the temperature conditions in Key West during December, including the average temperature, daily highs and lows, and historical temperature data.

Average Temperature

In December, Key West experiences an average temperature of around 75°F (24°C). This means that visitors can expect comfortable and enjoyable weather throughout the month. Whether you’re strolling along the sandy beaches or exploring the vibrant streets of Key West, the temperature is generally mild and pleasant, allowing for a variety of outdoor activities.

Daily Highs and Lows

During December, Key West enjoys daily highs that range from the mid-70s to the low 80s°F (24-27°C), providing a perfect balance between warmth and coolness. The afternoons are typically the warmest part of the day, allowing for outdoor adventures like snorkeling, kayaking, or simply lounging by the pool or on the beach.

As the sun sets, Key West experiences cooler temperatures with lows ranging from the mid-60s to the low 70s°F (18-21°C). These cooler evenings create a comfortable atmosphere for evening strolls, al fresco dining, or enjoying the vibrant nightlife that Key West has to offer.

Historical Temperature Data

To gain a deeper understanding of the temperature patterns in Key West during December, it is helpful to look at historical temperature data. Over the years, Key West has maintained a relatively consistent temperature range during this month.

Here is a table showcasing the average daily temperatures for December in Key West over the past five years:

Year Average Daily Temperature (°F)
2020 76
2019 75
2018 74
2017 76
2016 75

As seen from the table, the average daily temperature in Key West during December remains fairly steady, with only slight variations from year to year. This consistency in temperature makes it easier for visitors to plan their activities and pack accordingly.

When considering the weather in Key West in December, it’s important to note that while it generally offers pleasant temperatures, occasional variations may occur due to factors such as Gulf Stream influence, cold fronts, or El Niño or La Niña effects. Understanding these factors can help visitors make the most of their time in Key West and prepare for any changes in weather conditions.

Overall, Key West in December provides a delightful escape from the harsh winter months, with mild temperatures that allow for a wide range of outdoor and indoor activities. Whether you’re seeking water sports and beach activities, holiday festivals and parades, or simply enjoying the local cuisine and entertainment, Key West offers something for everyone to enjoy during this time of the year. So pack your bags, embrace the warmth, and get ready for an unforgettable December getaway in Key West.


Factors Influencing Key West Temperature in December

The temperature in Key West during the month of December is influenced by several factors. Understanding these factors can help visitors plan their trip and make the most of their time in this beautiful island paradise. In this section, we will explore the Gulf Stream influence, the impact of cold fronts, and the effects of El Niño or La Niña.

Gulf Stream Influence

The Gulf Stream, a warm and powerful ocean current, plays a significant role in shaping the weather patterns of Key West, especially during the winter months. This mighty current originates in the Gulf of Mexico and flows along the eastern coast of the United States, including the Florida Keys. The warm waters of the Gulf Stream contribute to the mild temperatures experienced in Key West, even during the winter season.

The Gulf Stream acts as a natural heater, transferring warmth from the tropics to the surrounding waters. This warm water then affects the air temperature, keeping it relatively stable and pleasant throughout December. As a result, Key West enjoys average temperatures that are significantly higher than many other parts of the country during this time of year.

Cold Fronts

While the Gulf Stream provides a warm influence, cold fronts can occasionally make their way to Key West, causing temporary drops in temperature. Cold fronts are characterized by the arrival of cooler air masses from the north, which can bring chilly winds and lower temperatures to the region.

During December, it is not uncommon for cold fronts to pass through Key West, resulting in a brief period of cooler weather. However, these cold fronts are typically short-lived, and the warm influence of the Gulf Stream quickly restores the pleasant temperatures that the island is known for. Visitors should be prepared for the occasional cooler day or two during their stay, but can generally expect mild and enjoyable conditions throughout the month.

El Niño or La Niña Effects

El Niño and La Niña are natural climate patterns that can have a significant impact on weather conditions around the world, including Key West. El Niño is characterized by warmer-than-average sea surface temperatures in the equatorial Pacific Ocean, while La Niña is associated with cooler-than-average sea surface temperatures in the same region.

These climate patterns can influence the weather patterns in Key West by altering the position and strength of the jet stream, which in turn affects the movement of weather systems. During an El Niño event, Key West may experience milder and wetter conditions, while a La Niña event can bring cooler and drier weather.

It is important to note that the effects of El Niño or La Niña on Key West’s weather during December can vary from year to year. While these climate patterns can provide some insight into the potential weather conditions, it is always best to check the local forecast closer to your travel dates for the most accurate information.


Activities and Events in Key West in December

Key West in December offers a plethora of activities and events to keep visitors entertained throughout their stay. Whether you’re a fan of water sports and beach activities, enjoy holiday festivals and parades, or prefer outdoor dining and entertainment, there is something for everyone to enjoy in this vibrant island paradise.

Water Sports and Beach Activities

When it comes to water sports and beach activities, Key West has it all. With its crystal-clear turquoise waters and pristine sandy beaches, this tropical paradise is a haven for outdoor enthusiasts. Here are some of the top water sports and beach activities to indulge in during your December visit:

  • Snorkeling and Scuba Diving: Dive into the vibrant underwater world of Key West. Explore the colorful coral reefs teeming with marine life, and swim alongside tropical fish and majestic sea turtles. The warm December waters offer excellent visibility, making it the perfect time to discover the wonders beneath the surface.
  • Kayaking and Paddleboarding: Glide through the calm waters of the Florida Keys on a kayak or paddleboard adventure. Explore the mangrove forests, navigate through narrow channels, and observe the diverse wildlife that calls this unique ecosystem home.
  • Jet Skiing and Parasailing: For those seeking a thrilling experience, hop on a jet ski or soar high above the sparkling waters on a parasailing excursion. Feel the adrenaline rush as you speed through the waves or enjoy breathtaking aerial views of Key West.
  • Sunset Sailing and Catamaran Cruises: Unwind and relax aboard a sunset sailing or catamaran cruise. Set sail as the sun dips below the horizon, painting the sky with vibrant hues of orange and pink. Enjoy the gentle sea breeze and toast to a perfect December evening on the water.

Holiday Festivals and Parades

Key West truly comes alive during the holiday season, with a variety of festive events and parades that capture the spirit of the island. Immerse yourself in the holiday cheer and create lasting memories with these December festivities:

  • Key West Holiday Fest: Join in the merriment at the Key West Holiday Fest, a month-long celebration filled with family-friendly activities. Enjoy live music, holiday markets, and festive decorations that adorn the streets of Old Town. Don’t miss the lighting of the Key West Christmas Tree, a magnificent sight to behold.
  • Lighted Boat Parade: Experience the enchantment of the Key West Lighted Boat Parade, where boats adorned with dazzling lights and decorations cruise through the harbor. Find a cozy spot along the waterfront and marvel at the illuminated vessels as they glide by, spreading holiday cheer.
  • New Year’s Eve Celebrations: Bid farewell to the year in style with Key West’s vibrant New Year’s Eve celebrations. Join the revelry on Duval Street, where bars and restaurants come alive with live music, fireworks, and a lively atmosphere. Raise a glass as the clock strikes midnight and welcome the new year with enthusiasm and joy.

Outdoor Dining and Entertainment

Key West boasts a vibrant culinary scene and a plethora of outdoor dining options that allow visitors to savor delicious cuisine while enjoying the island’s tropical ambiance. Here are some recommendations for outdoor dining and entertainment experiences in December:

  • Sunset Pier: Indulge in a delectable meal at Sunset Pier, a waterfront restaurant offering breathtaking views of the sunset. Savor fresh seafood, sip on tropical cocktails, and enjoy live music as you dine al fresco. Watch as the sun paints the sky with vibrant colors, casting a magical glow over the ocean.
  • Mallory Square: Join the nightly Sunset Celebration at Mallory Square, where street performers, artists, and food vendors come together to create a lively atmosphere. Sample local delicacies, browse through unique artisanal crafts, and witness the stunning sunset as street performers entertain the crowd.
  • Outdoor Music Venues: Key West is home to several outdoor music venues, where you can enjoy live performances under the starry sky. From laid-back beach bars to lively music festivals, there is no shortage of entertainment options. Dance the night away to the rhythms of reggae, jazz, or rock, and let the music transport you to a state of pure bliss.

What to Pack for Key West in December

When planning a trip to Key West in December, it’s important to pack appropriately for the weather and activities you plan to engage in. The tropical climate of Key West means that even in December, the temperatures are mild and pleasant. However, it’s always a good idea to be prepared for any changes in weather. Here are some essential tips on what to pack for your December getaway:

Clothing and Layering Tips

Key West in December typically experiences temperatures ranging from the mid-70s°F (around 24°C) during the day to the low 60s°F (around 16°C) in the evenings. While these temperatures may sound warm, it’s important to keep in mind that the island can experience occasional cool fronts that can bring temperatures down. Therefore, packing a variety of clothing options is recommended.

  • Lightweight and breathable clothing: Key West is known for its casual and laid-back atmosphere, so pack comfortable clothes like shorts, t-shirts, and sundresses. Opt for lightweight and breathable fabrics such as cotton or linen to stay cool in the warm daytime temperatures.
  • Long-sleeved shirts and pants: To prepare for cooler evenings or unexpected cool fronts, pack a few long-sleeved shirts and pants. These can be layered over your lightweight clothing for added warmth.
  • Sweater or light jacket: While the temperatures in Key West rarely drop below 60°F (15°C), it’s a good idea to pack a lightweight sweater or jacket for the evenings when the sea breeze can make it feel slightly cooler.
  • Swimwear: Don’t forget to pack your swimwear! Key West is surrounded by beautiful beaches and crystal-clear waters, so take advantage of the opportunity to swim and relax on the sandy shores.
  • Comfortable footwear: Since Key West is a walkable destination, comfortable footwear is essential. Pack a pair of sandals, flip-flops, or walking shoes to explore the island without discomfort.

Essential Accessories

In addition to clothing, there are a few essential accessories that you should consider packing for your December trip to Key West. These accessories will enhance your experience and ensure you have everything you need to fully enjoy your time on the island.

  • Sun hat or cap: Protect yourself from the strong tropical sun by packing a wide-brimmed hat or a cap. This will help shield your face and eyes from the sun’s rays, keeping you comfortable while exploring outdoor attractions or lounging on the beach.
  • Sunglasses: Along with a hat, sunglasses are a must-have accessory to protect your eyes from the bright sun. Opt for sunglasses with UV protection to safeguard your eyes from harmful rays.
  • Beach towel or mat: If you plan on spending time at the beach, pack a lightweight beach towel or mat. This will provide a comfortable spot to relax and soak up the sun.
  • Waterproof phone case: Key West offers plenty of water-based activities such as snorkeling, kayaking, and boating. To protect your phone from water damage, consider investing in a waterproof phone case. This way, you can capture memorable moments without worrying about accidental water exposure.

Sun Protection

One crucial aspect to consider when packing for Key West in December is sun protection. The sun’s rays can be intense, even during the winter months. It’s important to take steps to protect your skin and avoid sunburns. Here are some sun protection essentials to pack:

  • Sunscreen: Bring a high SPF sunscreen to protect your skin from harmful UV rays. Apply sunscreen generously and frequently, especially if you plan on spending time outdoors or engaging in water activities.
  • Lip balm with SPF: Don’t forget to protect your lips as well. Pack a lip balm with SPF to prevent chapping and sunburn.
  • Aloe vera gel: In case you do get a sunburn, having a soothing aloe vera gel on hand can provide relief and help with healing.
  • Lightweight cover-ups: To provide additional protection from the sun, consider packing lightweight cover-ups such as sarongs or long-sleeved shirts that can be worn over your swimwear.

By following these clothing and accessory tips, as well as taking sun protection measures, you’ll be well-prepared for your December adventure in Key West. Remember to check the weather forecast before your trip to ensure you have everything you need to make the most of your time on this beautiful tropical island.


Tips for Enjoying Key West in December

December is a wonderful time to visit Key West, with its mild temperatures and a plethora of exciting activities and attractions to enjoy. To make the most of your trip, here are some tips to keep in mind:

Best Times to Visit Attractions

Key West offers a wide range of attractions that cater to different interests and preferences. To ensure a memorable experience, it’s helpful to know the best times to visit these attractions:

  • Mallory Square Sunset Celebration: This iconic event takes place every evening at Mallory Square, where locals and tourists gather to witness the breathtaking sunset. Arriving early allows you to secure a good spot and enjoy the lively street performers and vendors.
  • Ernest Hemingway Home and Museum: If you’re a fan of literature and history, a visit to the Ernest Hemingway Home and Museum is a must. To avoid the crowds, consider visiting early in the morning or later in the afternoon.
  • Key West Aquarium: For a closer look at the marine life in the area, the Key West Aquarium is a fantastic choice. Weekdays tend to be less crowded compared to weekends, allowing you to explore the exhibits at a leisurely pace.
  • Fort Zachary Taylor State Park: This historic state park offers beautiful beaches, nature trails, and a Civil War-era fort. To fully enjoy the park, weekdays are generally quieter and provide a more peaceful experience.

Recommended Indoor Activities

While Key West is known for its outdoor adventures, there are also plenty of indoor activities to enjoy, especially if you encounter a rainy day or seek a break from the sun. Here are some recommendations:

  • Key West Butterfly and Nature Conservatory: Step into a tropical paradise filled with colorful butterflies and exotic plants. This indoor attraction is a great option for nature lovers and those seeking a tranquil environment.
  • Key West Shipwreck Treasure Museum: Delve into the rich maritime history of Key West at this interactive museum. Explore exhibits, watch a captivating film, and even climb to the top of the lookout tower for panoramic views.
  • Key West Lighthouse and Keeper’s Quarters Museum: Climb the 88 steps to the top of the lighthouse for a breathtaking view of the island. Learn about the history of the lighthouse and the lives of its keepers in the accompanying museum.

Local Tips and Recommendations

To truly immerse yourself in the spirit of Key West, it’s always helpful to get some insider tips and recommendations from the locals. Here are a few suggestions to enhance your experience:

  • Try the local cuisine: Key West is known for its fresh seafood, so be sure to indulge in delicious dishes like conch fritters, Key West pink shrimp, and the famous Key lime pie. Visit local restaurants and food stands to savor the authentic flavors of the island.
  • Explore beyond Duval Street: While Duval Street is the main hub of activity in Key West, don’t be afraid to venture off the beaten path. The quieter streets and neighborhoods often hold hidden gems like charming art galleries, boutique shops, and cozy cafes.
  • Rent a bike or scooter: Key West is a compact island, making it perfect for exploring on two wheels. Renting a bike or scooter allows you to easily navigate the streets, discover hidden beaches, and soak up the laid-back atmosphere at your own pace.
  • Engage with the locals: Key West is known for its friendly and welcoming community. Strike up conversations with locals, whether it’s the bartender at a local bar or the artist at a gallery. They often have fascinating stories to share and can provide valuable insights into the island’s culture and history.

In conclusion, visiting Key West in December offers a delightful experience with mild temperatures and a wide range of activities to enjoy. By considering the best times to visit attractions, exploring indoor activities, and seeking local tips and recommendations, you can make the most of your trip and create lasting memories in this vibrant island paradise.

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