December in Key West typically offers a pleasant tropical climate, characterized by warm temperatures, sunshine, and moderate humidity. Average highs range in the low 70s Fahrenheit (low 20s Celsius), while average lows settle in the high 60s Fahrenheit (high teens Celsius). Rainfall is relatively low during this month, contributing to the island’s dry season. This period offers a comfortable escape from colder continental climates.
The agreeable climate of Key West during this period makes it a desirable destination for tourists seeking outdoor activities such as swimming, snorkeling, fishing, and boating. Historically, this time of year has coincided with increased tourism to the island, benefiting the local economy and providing visitors an opportunity to experience the unique culture and environment. The relatively dry and sunny conditions also make it an ideal time for exploring the island’s historical sites and natural attractions.
This favorable climate sets the stage for a variety of experiences. Discussions of average temperatures, rainfall, and humidity provide further context for planning activities. Examining historical weather trends offers insights into potential variations and the impact on local ecosystems. Furthermore, exploring the influence of these conditions on tourism and the local economy reveals the broader implications of Key West’s December climate.
1. Sunshine
Sunshine is a defining characteristic of Key West’s December weather and a primary driver of its appeal as a winter destination. The prevalence of sunshine during this period significantly influences the island’s environment, tourism, and overall atmosphere.
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Daily Duration
Key West experiences a considerable amount of sunshine in December, averaging around 7 hours per day. This extended daylight contributes to warmer temperatures and provides ample opportunity for outdoor activities. The consistent sunshine also enhances the vibrant colors of the tropical flora and the surrounding waters.
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Impact on Tourism
The abundant sunshine plays a crucial role in attracting tourists to Key West during December. Visitors seeking respite from colder climates are drawn to the promise of sunny days, ideal for enjoying the beaches, water sports, and open-air attractions. This influx of tourists benefits the local economy and supports various businesses.
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Effect on Marine Life
Sunshine influences the marine ecosystem surrounding Key West. Sunlight penetration into the water supports the growth of coral reefs and seagrass beds, providing habitat for a diverse range of marine life. This vibrant underwater environment contributes to the popularity of snorkeling and diving activities.
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Influence on Local Culture
The prevalence of sunshine fosters a relaxed and outdoor-oriented lifestyle in Key West. The pleasant weather encourages social gatherings, outdoor dining, and a general appreciation for the natural environment. This atmosphere contributes to the island’s unique cultural identity.
These interconnected facets of sunshine contribute significantly to the overall experience of Key West in December. The abundant sunlight enhances the island’s natural beauty, supports its tourism industry, and influences the local culture, making it a sought-after destination during the winter months.
2. Warm Temperatures
Warm temperatures are a defining feature of Key West’s December climate, distinguishing it from many other North American locations during the same period. This warmth results from Key West’s tropical location and the influence of the Gulf Stream, a warm ocean current. Average high temperatures in December typically range in the low 70s Fahrenheit (low 20s Celsius), while average lows settle in the high 60s Fahrenheit (high teens Celsius). This moderate temperature range creates a comfortable environment for a variety of outdoor activities. For example, visitors can comfortably enjoy swimming, sunbathing, and watersports without the need for wetsuits or excessive sun protection. The warm air temperatures also contribute to pleasant evenings, allowing for outdoor dining and entertainment.
The consistently warm temperatures throughout December contribute significantly to Key West’s appeal as a winter destination. This climate allows for extended stays focused on outdoor recreation and exploration. The warmth also encourages participation in activities such as hiking, biking, and exploring the island’s natural ecosystems. Compared to more northern locations experiencing freezing temperatures and snow in December, Key West’s warm climate provides a stark contrast and a desirable escape for those seeking refuge from winter conditions. This difference in climate drives tourism and influences the local economy, supporting businesses reliant on visitor spending.
Understanding the role of warm temperatures in shaping Key West’s December climate is crucial for planning activities and appreciating the island’s unique environment. These temperatures influence the types of flora and fauna that thrive on the island and contribute to the overall experience of visitors. While temperature variations can occur, the consistently warm conditions throughout December remain a significant draw for tourists and a defining characteristic of Key West’s appeal during the winter months. This predictable warmth allows for reliable planning of outdoor activities and contributes to the island’s reputation as a desirable winter getaway.
3. Low Humidity
Low humidity is a significant characteristic of Key West’s December weather, contributing to the overall comfort and pleasantness of the climate during this period. Unlike summer months, which can experience higher humidity levels, December offers a drier atmosphere due to the prevailing wind patterns and reduced rainfall. This lower humidity enhances the perceived temperature, making even warmer days feel more comfortable and less oppressive.
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Enhanced Comfort
Lower humidity reduces the sensation of stickiness and allows for greater evaporative cooling, making outdoor activities more enjoyable. This contrasts with humid climates where perspiration evaporates less readily, leading to a feeling of being overheated. In Key West’s December climate, the low humidity contributes to a refreshing and invigorating atmosphere, particularly beneficial for those accustomed to colder, drier climates.
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Improved Visibility
Reduced atmospheric moisture improves visibility, making December an ideal time for sightseeing and appreciating the clear skies and expansive ocean views. Haze and fog are less common during this period, allowing for clearer photographs and unobstructed views of sunsets. This enhanced visibility contributes to the overall aesthetic appeal of the island and enhances the experience of outdoor activities.
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Relief from Respiratory Issues
Lower humidity can provide relief for individuals with respiratory conditions such as asthma or allergies. Dry air is less likely to exacerbate these conditions, allowing visitors to breathe more easily and comfortably. This aspect of Key West’s December climate can be particularly appealing to those seeking a healthier environment.
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Preservation of Historical Structures
The dry air of December contributes to the preservation of Key West’s historic buildings and wooden structures. Lower humidity reduces the risk of mold, mildew, and rot, helping to maintain the integrity of these historical landmarks. This preservation benefits the island’s cultural heritage and tourism industry.
The low humidity in Key West during December contributes significantly to the island’s appeal as a winter destination. The comfortable climate, enhanced visibility, and potential health benefits combine to create a desirable environment for visitors. This characteristic, coupled with other favorable weather conditions, makes December a popular time to experience Key West’s unique atmosphere and attractions.
4. Minimal Rainfall
Minimal rainfall characterizes December in Key West, marking the beginning of the dry season. This period of reduced precipitation stems from the shift in prevailing wind patterns, which transition from the moist, southerly flows of summer to drier, northerly winds. This shift significantly influences the island’s climate, ecosystem, and tourism industry. The decreased rainfall contributes to lower humidity levels, creating a more comfortable environment for outdoor activities. For instance, clear skies and sunshine prevail, ideal for exploring the island’s natural attractions, historic sites, and engaging in watersports. The lack of rain also facilitates outdoor events and festivals common during the holiday season.
The practical significance of minimal rainfall in Key West during December extends beyond tourism. Reduced precipitation impacts the local flora and fauna. Native plants adapted to drier conditions thrive, while certain animal species adjust their behavior accordingly. Furthermore, minimal rainfall reduces the risk of flooding, which can disrupt infrastructure and daily life. This dry period is essential for maintaining the island’s delicate ecosystem and ensuring the smooth operation of local businesses and services. For example, construction projects and outdoor maintenance activities can proceed unimpeded by rain delays. The dry conditions also contribute to the preservation of historical buildings by minimizing moisture damage.
In summary, minimal rainfall is a crucial component of Key West’s December weather. It contributes significantly to the island’s pleasant climate, supports the thriving tourism industry, and sustains the local ecosystem. Understanding this aspect of Key West’s weather is crucial for planning activities, appreciating the island’s unique environment, and recognizing the interconnectedness of weather patterns and local life. This knowledge enables both visitors and residents to fully experience and appreciate Key West’s distinct character during December. The predictable dry season allows for reliable scheduling of outdoor events and contributes to the overall economic stability of the region.
5. Dry Season
December in Key West marks the onset of the dry season, a defining characteristic of the island’s subtropical climate. This period, typically extending from November to April, experiences significantly less rainfall compared to the wetter summer months. The dry season’s arrival coincides with a shift in prevailing winds, transitioning from moist southerly flows to drier northerly breezes. This shift contributes to lower humidity, increased sunshine, and cooler evenings, creating a distinctly pleasant atmosphere.
The dry season’s influence on Key West’s December weather is profound. Reduced rainfall allows for consistent sunshine, averaging around seven hours per day. This abundance of sunlight warms the air, resulting in average high temperatures in the low 70s Fahrenheit (low 20s Celsius). The lower humidity accompanying the dry season enhances comfort levels, making outdoor activities more enjoyable. For example, visitors can comfortably explore historical sites, engage in watersports, or simply relax on the beaches without the oppressive humidity experienced during summer. The dry conditions also benefit the local ecosystem. Native plants adapted to drier conditions flourish, and the reduced risk of flooding safeguards the island’s delicate balance.
Understanding the relationship between the dry season and Key West’s December weather is crucial for appreciating the island’s unique environment and planning activities accordingly. The predictable dry weather allows for reliable scheduling of outdoor events, contributes to the success of the tourism industry, and supports the overall well-being of the local community. While occasional showers can occur, the predominantly dry conditions define December’s climate in Key West, making it a desirable destination for those seeking winter sunshine and comfortable temperatures. This consistent climate pattern contributes to the island’s reputation as a haven from harsh winter conditions experienced elsewhere.
6. Average high
The average high temperature in the 70sF (low 20sC) is a cornerstone of Key West’s December weather, distinguishing it from colder continental climates. This moderate warmth plays a significant role in shaping the island’s appeal as a winter destination, influencing visitor activities and the local environment.
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Outdoor Recreation
Average highs in the 70sF create ideal conditions for a wide range of outdoor pursuits. Activities such as swimming, sunbathing, snorkeling, and sailing become highly appealing in this temperature range. The warmth encourages exploration of the island’s natural beauty, from its beaches and coral reefs to its lush tropical vegetation. This comfortable temperature range contributes significantly to Key West’s reputation as a prime outdoor recreation destination during December.
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Tourism and Local Economy
The appeal of 70F weather in December attracts a significant influx of tourists seeking respite from colder climates. This seasonal increase in visitors boosts the local economy, supporting businesses in the hospitality, recreation, and retail sectors. Restaurants with outdoor seating thrive, water sports rentals experience high demand, and local shops benefit from increased visitor spending. The average high temperature thus plays a vital role in sustaining Key West’s economy.
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Environmental Impact
The 70F average high temperature influences Key West’s ecosystem. This moderate warmth supports the growth of tropical flora and provides a suitable habitat for a diverse range of fauna. The warm waters surrounding the island remain conducive to marine life, attracting snorkelers and divers. This temperature also contributes to the dry season, impacting the behavior of local wildlife and the overall balance of the island’s delicate ecosystem.
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Contrast with Other Climates
The 70F average high in Key West during December contrasts sharply with many other regions in North America experiencing freezing temperatures and snow. This stark difference emphasizes Key West’s appeal as a winter escape. The moderate warmth allows visitors to enjoy outdoor activities typically unavailable in colder climates, further solidifying Key West’s reputation as a desirable winter destination. This climatic contrast drives tourism and shapes the island’s identity.
In conclusion, the average high temperature in the 70sF is integral to Key West’s December weather. This moderate warmth underlies the island’s allure as a winter destination, influencing tourism, supporting the local economy, and shaping the environment. It creates an ideal climate for outdoor recreation, distinguishing Key West from colder climates and solidifying its position as a sought-after winter getaway.
7. Average low
Average low temperatures in the 60sF (high teens Celsius) are a critical component of Key West’s December weather. This moderate nighttime temperature range contributes significantly to the island’s comfortable climate, influencing visitor experiences and shaping the overall character of December in Key West. These relatively warm nighttime lows eliminate the need for heavy winter clothing, allowing visitors to enjoy evenings outdoors comfortably. This fosters a vibrant nightlife and encourages participation in open-air events and activities. For example, evening strolls along the beach, outdoor dining, and live music performances become more appealing with such pleasant temperatures. This characteristic distinguishes Key West from destinations experiencing significantly colder December nights.
The impact of 60sF average lows extends beyond comfort. This temperature range influences energy consumption, reducing the need for heating in accommodations and homes. This contributes to lower energy costs for residents and businesses, further enhancing the appeal of Key West as a winter destination. Moreover, these moderate nighttime temperatures impact the local ecosystem. Certain plant and animal species benefit from the consistently warm conditions, influencing their behavior and life cycles. For instance, nocturnal animals remain active, and tropical plants continue to thrive. This consistent warmth supports the island’s biodiversity and contributes to its unique ecological character.
In summary, average low temperatures in the 60sF are integral to Key West’s December weather. This moderate nighttime warmth enhances visitor comfort, influences energy consumption, and supports the local ecosystem. Understanding the significance of these temperatures provides a deeper appreciation for the island’s unique December climate. This knowledge facilitates informed decision-making regarding attire, activity planning, and an overall understanding of the interplay between weather and the environment in Key West during December. This contributes to a more fulfilling and informed experience for visitors and residents alike.
8. Water Temperature
Comfortable water temperatures are a significant component of Key West’s December weather and a key factor influencing the island’s appeal for water-based activities. Sea surface temperatures during this period typically range from the low 70s to the high 60s Fahrenheit (low 20s Celsius), creating conditions conducive to extended periods in the water without discomfort. This characteristic plays a crucial role in shaping the December tourism landscape and supporting various recreational pursuits.
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Swimming and Snorkeling
Comfortable water temperatures in December encourage swimming and snorkeling. The absence of a need for wetsuits allows for greater freedom of movement and enhances the enjoyment of exploring Key West’s coral reefs and diverse marine life. This contributes significantly to the popularity of snorkeling excursions and underwater sightseeing tours during this period. The pleasant water temperatures provide an inviting environment for both experienced snorkelers and beginners.
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Diving
Similarly, comfortable water temperatures benefit scuba diving activities. Divers can spend longer periods underwater without experiencing chilling effects, allowing for more extensive exploration of shipwrecks, reefs, and other underwater attractions. This contributes to the appeal of Key West as a diving destination in December, attracting both recreational and professional divers. The comfortable water allows divers to focus on the underwater environment rather than thermal discomfort.
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Fishing
Water temperature influences fish behavior and distribution. Comfortable water temperatures in December support a diverse fish population, creating favorable conditions for various fishing activities. This attracts anglers seeking a range of species, from sport fish to reef fish. The comfortable conditions also enhance the overall fishing experience, making it more enjoyable to spend extended periods on the water.
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Other Water Sports
Beyond swimming, snorkeling, and diving, comfortable water temperatures enhance the experience of other water sports such as kayaking, paddleboarding, and jet skiing. The pleasant water makes accidental immersions less jarring and encourages participation in these activities. This further diversifies the range of recreational options available to visitors in Key West during December, catering to various interests and skill levels.
The comfortable water temperatures in Key West during December are integral to the island’s appeal as a winter destination for water enthusiasts. This characteristic expands recreational opportunities, supports the local tourism industry, and enhances the overall visitor experience. The interplay between comfortable air and water temperatures creates a uniquely appealing environment, distinguishing Key West from other winter destinations and contributing to its popularity during the holiday season.
9. Calm seas
Calm seas are a hallmark of Key West’s December weather, contributing significantly to the island’s appeal for maritime activities and overall visitor experience. The prevalence of calm seas during this period results from the shift in prevailing wind patterns. As the dry season commences, the dominant winds transition from the stronger, more variable southerly flows of summer to gentler northerly breezes. This shift reduces wave action and creates generally placid conditions in the surrounding waters. This predictable calmness facilitates a range of water-based activities, from leisurely boat tours and sunset cruises to more adventurous pursuits like snorkeling and diving. For example, glass-bottom boat tours operate with greater consistency, providing clear underwater views, while kayaking and paddleboarding become more accessible to a wider range of skill levels due to the reduced likelihood of capsizing.
The practical significance of calm seas during December in Key West extends beyond recreation. These conditions are crucial for the smooth operation of the local fishing industry. Calm waters allow fishing charters to operate safely and efficiently, maximizing catch potential and contributing to the local economy. Furthermore, the calmer seas facilitate transportation between Key West and surrounding islands, supporting inter-island commerce and tourism. The predictable maritime conditions allow for reliable ferry schedules and enhance the accessibility of neighboring islands for day trips and excursions. This interconnectedness between calm seas and various aspects of Key West’s economy underscores the importance of this weather characteristic.
In summary, calm seas are an integral component of Key West’s December weather. This characteristic enhances recreational opportunities, supports essential industries such as fishing and inter-island transportation, and contributes to the overall visitor experience. Understanding the relationship between calm seas and the prevailing weather patterns during December provides valuable insights into the dynamics of Key West’s climate and its influence on local life and economic activities. This knowledge allows for informed planning of maritime activities and a deeper appreciation of the island’s unique environment during this period. The predictability of calm seas during December allows for reliable scheduling of boat tours, fishing charters, and other water-dependent activities, contributing to the overall stability and success of these sectors.
Frequently Asked Questions about Key West Weather in December
This section addresses common inquiries regarding Key West’s weather during December, providing concise and informative responses based on typical climate patterns.
Question 1: What is the average temperature in Key West during December?
Average high temperatures typically range in the low 70s Fahrenheit (low 20s Celsius), while average lows settle in the high 60s Fahrenheit (high teens Celsius).
Question 2: How much rain does Key West typically receive in December?
December marks the beginning of Key West’s dry season, characterized by minimal rainfall. Average precipitation is significantly lower compared to the summer months.
Question 3: Is it humid in Key West during December?
Humidity levels are generally low in Key West during December, contributing to the comfortable climate.
Question 4: What is the water temperature like in December?
Water temperatures remain comfortable in December, typically ranging from the low 70s to high 60s Fahrenheit (low 20s Celsius), suitable for swimming and other water activities.
Question 5: Is it windy in Key West during December?
Winds tend to be calmer in December compared to the summer months, contributing to calm seas ideal for boating and water sports.
Question 6: What should one pack for a trip to Key West in December?
Light clothing, swimwear, sunscreen, and a light jacket for cooler evenings are recommended. Rain gear is generally not necessary due to the minimal rainfall.
Understanding these typical weather patterns allows for informed planning and preparation for a December trip to Key West. This knowledge enhances the visitor experience by ensuring appropriate attire and facilitating informed activity choices.
Further exploration of specific activities and attractions appropriate for Key West’s December weather follows in the subsequent section.
Tips for Experiencing Key West in December
Key West in December offers a unique blend of pleasant weather and festive atmosphere. The following tips provide guidance for maximizing enjoyment of this special time of year.
Tip 1: Book Accommodations and Flights Early
December is a popular time to visit Key West. Booking accommodations and flights well in advance secures preferred choices and potentially better rates. Last-minute bookings may encounter limited availability and higher prices due to increased demand during the holiday season.
Tip 2: Pack Light Clothing, Layers, and Swimwear
Daytime temperatures typically reach the low 70s Fahrenheit (low 20s Celsius), making light clothing appropriate. However, evenings can be cooler, necessitating light jackets or sweaters. Swimwear is essential for enjoying the beaches and water activities.
Tip 3: Plan for Outdoor Activities
December’s pleasant weather creates ideal conditions for outdoor activities. Consider exploring the island’s natural beauty through snorkeling, diving, kayaking, or hiking. The calm seas also provide excellent opportunities for sailing and fishing charters.
Tip 4: Explore the Historic Sites and Attractions
Key West boasts a rich history. December’s comfortable weather provides an ideal opportunity to explore historical landmarks such as the Ernest Hemingway Home and Museum, Fort Zachary Taylor Historic State Park, and the Key West Lighthouse and Keeper’s Quarters Museum. Walking tours offer insights into the island’s architectural and cultural heritage.
Tip 5: Attend Holiday Events and Festivals
Key West hosts various holiday events and festivals throughout December. Check local listings for holiday boat parades, concerts, and festive celebrations. These events showcase the island’s unique cultural blend and enhance the holiday atmosphere.
Tip 6: Make Restaurant Reservations
Dining establishments, especially popular venues, can become crowded during December. Making reservations in advance ensures preferred dining times and avoids potential wait times. This is particularly important for holiday meals and special occasions.
Following these tips ensures a well-prepared and enjoyable experience in Key West during December, maximizing opportunities to appreciate the island’s unique blend of pleasant weather, natural beauty, and festive atmosphere.
These preparations contribute to a fulfilling experience and allow visitors to fully immerse themselves in the distinct character of Key West during the holiday season.
Key West Dec Weather
Key West in December presents a compelling combination of favorable meteorological conditions. Mild temperatures, averaging in the low 70s Fahrenheit (low 20s Celsius) during the day and high 60s Fahrenheit (high teens Celsius) at night, coupled with low humidity and minimal rainfall, define the island’s desirable climate during this period. Calm seas and comfortable water temperatures further enhance the appeal, creating an ideal environment for various outdoor activities, from watersports to exploring historical sites. This distinct climate distinguishes Key West from many other North American locations experiencing colder, harsher weather in December.
The confluence of these favorable weather conditions contributes significantly to Key West’s appeal as a sought-after winter destination. This predictable climate allows for reliable planning of outdoor activities, supports a thriving tourism industry, and fosters a unique island atmosphere. Visitors seeking respite from winter’s chill find a haven in Key West’s December weather. This climate fosters an environment conducive to relaxation, exploration, and enjoyment of the island’s natural beauty and cultural richness. An understanding of these climatic characteristics provides valuable context for planning a December visit, ensuring a fulfilling experience attuned to the island’s distinct seasonal offerings.
