Last updated: February 24, 2025
In December, Duck Key, United States experiences a pleasant climate marked by an average temperature of 23°C (74°F), with daytime highs reaching up to 26°C (80°F). Despite occasional cooler nights, where temperatures can dip to a minimum of 14°C (58°F), the overall environment remains inviting. Visitors can expect some rain, with 44 mm (1.7 in) of precipitation across approximately 7 days of the month. The humidity, hovering around 81%, adds to the tropical feel, making this a perfect time to enjoy the lush surroundings and mild weather.
In Duck Key, United States, December ushers in a refreshing transition as temperatures start to cool, yet remain pleasantly mild. With a minimum of 14°C (58°F) and a comfortable average of 23°C (74°F), locals and visitors alike enjoy outdoor activities without the sweltering heat of summer. Daytime highs reach a delightful 26°C (80°F), making it a perfect time for exploring the stunning coastal scenery or indulging in water sports. This month is characterized by a notable dip from the higher averages of previous months, signaling the arrival of a more relaxed winter climate while still retaining the warmth that the Florida Keys are famed for.
In Duck Key, December marks a notable shift as precipitation begins to taper off after the heavy downpours of the preceding months. With an average of 44 mm (1.7 in) of rain over about 7 days, it signifies a relatively dry period compared to the summer and fall months, where rainfall peaked, especially in September with an impressive 200 mm (7.9 in). This decline in precipitation is accompanied by fewer rain days, allowing residents and visitors to enjoy clearer skies and more outdoor activities. As December transitions into winter, the weather becomes more temperate, offering a welcome respite from the intense rain that characterizes the late summer months. Overall, this month serves as a bridge, leading into the drier winter season while still retaining the tropical charm that defines Duck Key.
In Duck Key, United States, December wraps up the year with a humidity level of 81%, mirroring the figures from January and November. This consistent humidity trend reflects a cycle where levels are higher in the winter months, peaking slightly at the year's end. As the seasons change, we observe a gradual decline in humidity from a humid 81% in January to 69% in June, followed by a slight uptick in the latter half of the year. This fluctuation creates a unique tropical atmosphere, perfect for ocean enthusiasts and those who enjoy warm, balmy weather. Overall, December stands out as part of a trend that emphasizes the high moisture levels characteristic of Duck Key's climate.
In December, Duck Key experiences a UV Index of 6, categorized as high, which allows for a more moderate sun exposure compared to the previous months. As the year winds down, the burn time extends to 25 minutes, providing more leeway for outdoor activities while still promoting sun safety. This trend reflects a gradual decrease from the extreme levels noted throughout the summer and early fall months, where indices peaked at 12 or above. As winter approaches, it's critical to remain vigilant: even at lower UV levels, prolonged exposure can still lead to skin damage. For more detailed insights on daily UV levels, check out the Duck Key UV Index.
UV Risk Categories
As December unfolds in Duck Key, the island basks in a pleasant 292 hours of sunshine, making it a delightful time for visitors seeking warmth and relaxation. This month marks a gentle transition from the vibrant highs of summer, where July shines the brightest with 348 hours of sunlight, down to the cooler winter months. Notably, the overall trend showcases a gradual decline in daylight hours from the summer peak, yet December still offers a generous amount of sun compared to the earlier months of the year. With such inviting conditions, Duck Key beckons sun-seekers to embrace its natural beauty and indulge in outdoor adventures before the year draws to a close.
As December approaches in Duck Key, the chance of experiencing sunny weather notably increases, with a promising 71% likelihood of sunshine. This trend stands out against the more variable conditions seen earlier in the year. While months like June and August struggle with significantly lower probabilities of sunny days, the end of the year ushers in a more favorable forecast, aligning closely with the sunnier patterns of January and February. This upswing in sunshine is perfect for those looking to escape winter chill, making December an ideal time to bask in the radiant warmth of Duck Key.
In Duck Key, United States, December brings a return to shorter days, with daylight lasting just 10 hours. This pattern marks a continuation of earlier months, following the same trend established over the year. As we move through the seasons, daylight gradually increases from 10 hours in January to a peak of 13 hours in both May and June, before tapering off again. The gradual decline in daylight across the late summer and fall months culminates in December, reminding us of the seasonal cycles and their impact on our daily lives. Whether basking in the sun during the long summer days or enjoying the cozy feel of winter nights, Duck Key's daylight journey throughout the year offers a unique perspective on the rhythm of nature.
As the year winds down in Duck Key, December brings an average wind speed of 5.0 m/s (11 mph), marking a slight dip from the preceding months. This seasonal decline in wind intensity is consistent with the trend observed since the summer, where July experienced the lowest average wind speed of 4.4 m/s (10 mph). As autumn progresses, wind speeds gradually increase, peaking in March at 6.6 m/s (15 mph) before tapering off again as winter sets in. Overall, the monthly averages highlight a gentle ebb and flow, with the refreshing December breeze capturing the tranquil essence of this picturesque locale.
The weather in Duck Key changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Duck Key and find detailed weather information for every month.
In December, the weather is characterized by slightly warmer temperatures, with a minimum of 14°C (58°F) and an average of 23°C (74°F), peaking at 26°C (80°F). The month sees a total precipitation of 44 mm (1.7 in) spread over 7 days, accompanied by high humidity at 81%. In contrast, January experiences a slight drop in minimum temperatures to 11°C (52°F) and a similar maximum of 26°C (80°F), while the average temperature hovers around 22°C (71°F). This month also experiences reduced precipitation, totaling 24 mm (1.0 in) over just 4 days, yet maintains the same humidity level of 81%. For a closer look at the specifics, check out Duck Key weather in January.
In December, the weather features a minimum temperature of 14°C (58°F) and a comfortable average of 23°C (74°F), peaking at a maximum of 26°C (80°F). December experiences 44 mm (1.7 in) of precipitation over about 7 days, with humidity levels at 81%. In comparison, February sees a slight increase in the minimum temperature to 15°C (59°F) while maintaining the same average and maximum temperatures. Precipitation drops to 28 mm (1.1 in) over just 5 days, with humidity slightly lower at 79%. For more detailed insights, you can check out Duck Key weather in February.
In December, temperatures in Duck Key range from a minimum of 14°C (58°F) to a maximum of 26°C (80°F), with an average of 23°C (74°F). The month experiences significant humidity at 81% and sees about 44 mm (1.7 in) of precipitation over 7 days. In contrast, March maintains a similar temperature profile, with a minimum of 15°C (60°F) and a maximum still reaching 26°C (80°F), while averaging the same 23°C (74°F). However, March enjoys less rainfall, totaling just 22 mm (0.9 in) over 3 days, leading to lower humidity levels at 76%. For those interested in specific weather details, you can find more information here: Duck Key weather in March.
In December, the weather is generally mild, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (80°F) and an average of 23°C (74°F). The month experiences about 44 mm (1.7 in) of precipitation over approximately 7 days, coupled with a high humidity level of 81%. In contrast, April sees warmer temperatures, with a minimum of 18°C (65°F) and a maximum reaching 29°C (84°F), averaging at 25°C (77°F). Although the precipitation remains the same at 44 mm (1.7 in) over 7 days, April enjoys a lower humidity of 73%, making it feel more comfortable. For more detailed information, you can check Duck Key weather in April.
In December, the weather features milder temperatures with a minimum of 14°C (58°F) and an average of 23°C (74°F), reaching a maximum of 26°C (80°F). Humidity levels are high at 81%, with approximately 44 mm (1.7 in) of precipitation spread over 7 days. In contrast, May sees warmer conditions, with a minimum of 22°C (72°F) and an average of 26°C (79°F), peaking at 29°C (84°F). While the temperatures are higher, May experiences significantly more rainfall, with 142 mm (5.6 in) over 11 days, but a lower humidity level at 71%. For more detailed insights, you can check Duck Key weather in May.
In December, the weather is relatively mild with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (80°F), accompanied by a humidity level of 81%. There’s some precipitation during this month, averaging 44 mm (1.7 in) over about 7 days. In contrast, June experiences a warmer climate with a minimum temperature of 24°C (75°F), averaging 28°C (82°F), and peaking at 31°C (88°F). June also sees more rainfall, with about 105 mm (4.1 in) of precipitation over 16 days, while the humidity is lower at 69%. For a closer look at what to expect, check out Duck Key weather in June.
In December, the weather is characterized by milder temperatures, with a minimum of 14°C (58°F) and an average around 23°C (74°F), peaking at a maximum of 26°C (80°F). This month experiences about 44 mm (1.7 in) of precipitation over approximately 7 days, coupled with a relatively high humidity level of 81%. In contrast, July brings significantly warmer temperatures, with a minimum of 25°C (78°F) and an average of 28°C (83°F), reaching a maximum of 31°C (87°F). Although July sees more rainfall, totaling 90 mm (3.6 in) over about 16 days, the humidity is somewhat lower at 70%. For more detailed information, you can check out Duck Key weather in July.
When comparing the weather in December and August, it's clear that both months offer distinct experiences. December boasts a milder climate with temperatures ranging from a minimum of 14°C (58°F) to an average of 23°C (74°F) and a maximum of 26°C (80°F). This month also sees relatively low precipitation at 44 mm (1.7 in) over about 7 days, along with higher humidity levels at 81%. In contrast, August is considerably warmer, with temperatures starting at a minimum of 25°C (78°F) and averaging around 29°C (84°F), peaking at 31°C (87°F). However, August is also marked by significantly higher rainfall, totaling 96 mm (3.8 in) over 16 days, accompanied by a lower humidity of 72%. For more details about the warm and wet August conditions, check out Duck Key weather in August.
When comparing the weather in December and September, December boasts milder temperatures with a minimum of 14°C (58°F) and a maximum of 26°C (80°F), averaging around 23°C (74°F). In contrast, September experiences warmer conditions, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F), averaging 28°C (83°F). Additionally, September is notably wetter, receiving 200 mm (7.9 in) of precipitation across 18 days, while December sees much less rain, with only 44 mm (1.7 in) over 7 days. Humidity levels are slightly higher in December at 81%, compared to 76% in September. For a detailed look at September's weather conditions, visit Duck Key weather in September.
When comparing December and October weather, a few notable differences emerge. December tends to be slightly cooler, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 26°C (80°F), while October boasts warmer averages, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (85°F). Additionally, December experiences significantly less rainfall, accumulating only 44 mm (1.7 in) over about 7 days, compared to October's 131 mm (5.2 in) over 18 days. Humidity levels are relatively similar in both months, with December at 81% and October at 79%. For more details on weather patterns, you can check Duck Key weather in October.
In December, temperatures are slightly cooler compared to November, with a minimum of 14°C (58°F) and a maximum of 26°C (80°F), while November enjoys a slightly higher range, with temperatures varying from 17°C (63°F) to 28°C (83°F). Precipitation levels also differ, with December receiving 44 mm (1.7 in) over 7 days, whereas November sees a higher total of 69 mm (2.7 in) across 11 days. Humidity remains relatively consistent, with December at 81% and November at 80%. For a more detailed look at November conditions, you can visit Duck Key weather in November.
December weather in Duck Key presents a refreshing change from the warmer months, with comfortable temperatures averaging around 23°C (74°F) and a pleasant humidity level of 81%. While the maximum temperature reaches a mild 26°C (80°F), cooler nights can drop to about 14°C (58°F), inviting cozy evenings. December also sees an increase in rainfall, with approximately 44 mm spread over 7 days, adding a touch of winter charm to the tropical setting. If you're curious about the nuances of Duck Key's climate throughout the year, explore more in our detailed section on Duck Key Climate.