December Weather in Big Pine Key, United States

Last updated: February 24, 2025

December in Big Pine Key, United States brings a pleasant tropical experience, with temperatures reaching a maximum of 26°C (79°F) and averaging around 23°C (73°F). As the winter month unfolds, the minimum temperature dips to a cool 14°C (58°F), providing a refreshing contrast to the warmer days. Visitors can expect 39 mm (1.6 in) of precipitation spread over 5 days, contributing to the lush landscape. Despite the occasional rains, humidity remains high at 81%, adding to the characteristic warmth of this idyllic island location. Ideal for nature lovers and outdoor enthusiasts, December offers a perfect opportunity to explore the beauty of Big Pine Key while enjoying its mild climate.

December Temperature in Big Pine Key

In December, Big Pine Key experiences a delightful transition as the year winds down. Temperatures range from a comfortable 14°C (58°F) at night to a pleasant 26°C (79°F) during the day, with an average of 23°C (73°F). This month marks one of the cooler periods in the year, yet it remains inviting compared to many other locations. As the weather shifts from the warmer autumn months, you'll notice a gradual decrease in the maximum temperatures, which peak in the summer at 31°C (88°F). December’s mild climate is perfect for outdoor activities and enjoying the scenic beauty of the keys, making it an ideal time for visitors seeking a sunny escape from winter's chill.

December Weather in Big Pine Key: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Big Pine Key, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec717374777982838482817673
Data source: Temperature data for Big Pine Key generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Big Pine Key

December in Big Pine Key marks a transition as the island bids farewell to the wetter months. With an average precipitation of 39 mm (1.6 in) spread over 5 days, the rainfall is significantly less than the summer peaks, showcasing a noticeable dip from the heavier downpours typically seen in the preceding months. This month’s rainfall is a stark contrast to the 192 mm (7.6 in) experienced in September, revealing how the region shifts from the height of tropical storms to a drier winter. Interestingly, while the rainfall volume diminishes, December still carries the essence of tropical warmth, creating a unique balance that welcomes both sun seekers and those craving a tranquil escape in the serene beauty of the Keys.

December Precipitation Trends in Big Pine Key

The chart displays monthly precipitation patterns in Big Pine Key, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec25281745141111971041921316839
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Big Pine Key

In December, Big Pine Key experiences a notable increase in humidity, reaching 81%, which mirrors the levels seen at the start of the year in January. As the colder months approach, the humidity trends upward from the lower 70s in late spring and summer, reflecting the tropical characteristics of the region. The transition from a peak in May and June with humidity dipping to 69% signifies a seasonal rhythm, culminating in a return to higher humidity levels as the year draws to a close. This cyclical pattern highlights how the island's maritime climate influences moisture levels, fostering a lush and vibrant environment that characterizes the holiday season in this beautiful locale.

December Average Humidity in Big Pine Key

This chart illustrates the average monthly humidity levels in Big Pine Key, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec81%80%76%73%71%70%70%72%76%79%80%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Big Pine Key

In December, Big Pine Key sees a decline in the UV Index to 6, categorizing it as high with a burn time of approximately 25 minutes. This represents a noticeable shift from the more intense conditions experienced in the peak summer months, where UV indexes soared to extremes of 12 or higher. Interestingly, the gradual reduction in UV radiation as the year draws to a close allows for extended outdoor enjoyment while still necessitating sun protection. As winter approaches, residents and visitors should remain mindful of UV exposure, ensuring that they take appropriate precautions during their sunny adventures. For more detailed insights, check the Big Pine Key UV Index.

Maximum UV Index Levels in Big Pine Key for December

The chart shows the monthly maximum UV Index (UVI) for Big Pine Key in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec79101212131212121086
Data source: Big Pine Key December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Big Pine Key

In Big Pine Key, December radiates a welcoming warmth with an average of 292 hours of sunshine, beautifully bridging the year towards its end. As daylight begins to fade into winter, the sunlit hours reflect a steady trend of richness in light throughout the year. Notably, December's sunshine hours decline from the peak summer brightness of 348 hours in July but still outshine the earlier months, consistently showcasing the area's charm. With the colorful splendor of the tropics against a backdrop of clear skies, December offers a delightful experience, inviting both locals and visitors to revel in the mild temperatures and the captivating glow of the sun.

Monthly Sunshine Duration in Big Pine Key: December Highlighted

The December sunshine duration represents the total number of hours Big Pine Key experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec233h286h333h341h333h320h348h338h318h306h286h292h
Data source: Big Pine Key December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Big Pine Key During December

In December, Big Pine Key enjoys an impressive 71% chance of sunny weather, making it one of the brightest months of the year. This increase in sunshine marks a notable rise from the more subdued summer months, where the chances plummet to around 19% in June and hover between 27% and 34% for July and August. As the year transitions into the winter months, the likelihood of clear skies steadily climbs from 51% in October to a robust 52% in November before peaking in December. This trend highlights Big Pine Key's allure as a holiday getaway, promising plenty of sunshine just as winter settles over much of the country.

Percentage of Sunny Days in December in Big Pine Key

The chart illustrates the percentage of sunny days in Big Pine Key throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Big Pine Key experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%67%68%63%59%19%32%27%34%51%52%71%
Data source: Big Pine Key December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Big Pine Key in December

In Big Pine Key, United States, December brings a return to shorter days, mirroring the daylight duration of January with approximately 10 hours of sunlight. As the year unfolds, daylight gradually increases from the depths of winter in December and January, peaking at 13 hours during the vibrant summer months of May, June, and July. As autumn sets in, daylight begins to wane again, starting a seasonal cycle where bright spring days make way for the mellow hues of winter. This rhythmic pattern not only enhances the island's natural beauty but also invites visitors to experience the unique charm of each season, despite the shorter daylight hours in December.

Average Daylight Hours in Big Pine Key for December

The chart illustrates the variation in daylight duration in Big Pine Key throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 47m11h 19m12h 1m12h 44m13h 20m13h 37m13h 28m12h 56m12h 15m11h 32m10h 55m10h 37m
Data source: Big Pine Key daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Big Pine Key

In Big Pine Key, December ushers in a gentle breeze with an average wind speed of 5.0 m/s (11 mph), marking a notable dip from the burst of activity earlier in the year. As the holiday season approaches, the winds typically slow down after the slightly brisker months of November and March, which feature speeds of 5.9 m/s (13 mph) and 6.5 m/s (15 mph) respectively. This gradual decrease is a continuation of a trend observed since the summer, where July recorded its calmest moment at only 4.5 m/s (10 mph). Despite the lower speeds, December’s winds create a soothing backdrop for the tranquil beauty of the Keys, providing a welcome respite from the more turbulent gusts of spring. The overall pattern reflects a seasonal rhythm, embracing both the serene and the spirited aspects of island life.

Average December Wind Speed in Big Pine Key

The chart displays monthly wind speed patterns in Big Pine Key, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.26.06.55.95.85.64.55.33.55.35.95.0 m/s
Data source: Big Pine Key December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Big Pine Key Compares to Other Months

The weather in Big Pine 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 Big Pine Key and find detailed weather information for every month.

In December, the weather is slightly warmer, with minimum temperatures around 14°C (58°F) and an average of 23°C (73°F), while January experiences cooler conditions, with temperatures dipping to a minimum of 11°C (52°F) and an average of 21°C (71°F). Both months share the same maximum temperature of 26°C (79°F), but December sees more rainfall, averaging 39 mm (1.6 in) over 5 days compared to January’s 25 mm (1.0 in) over 4 days. Humidity levels remain consistent at 81% for both months, creating a humid atmosphere year-round. For more detailed information, you can check Big Pine Key weather in January.

December and February exhibit similar average temperatures in Big Pine Key, both ranging between 23°C (73°F) and 26°C (79°F). However, December tends to start with slightly cooler minimum temperatures at 14°C (58°F), compared to February's 15°C (59°F). Precipitation in December is a bit higher at 39 mm (1.6 in) over 5 days, while February sees lower rainfall at 28 mm (1.1 in) also spread over 5 days, resulting in a drier experience. Additionally, humidity is marginally lower in February at 79%, compared to December's 81%. For more details on February weather, visit Big Pine Key weather in February.

In December, the weather features a minimum temperature of 14°C (58°F), with an average of 23°C (73°F) and a maximum reaching 26°C (79°F). This month typically sees around 39 mm (1.6 in) of precipitation over about 5 days, coupled with a high humidity level of 81%. In contrast, March experiences slightly warmer conditions, with a minimum of 16°C (60°F) and maintaining the same average and maximum temperatures as December. However, March benefits from less precipitation, only 17 mm (0.7 in) across approximately 2 days, resulting in lower humidity at 76%. For more specific insights into the weather conditions for this period, you can consult Big Pine Key weather in March.

When comparing the weather in December and April, it’s clear that April brings warmer temperatures. December has a minimum of 14°C (58°F) and averages 23°C (73°F), while April starts at a higher minimum of 18°C (65°F) and reaches an average of 25°C (77°F). Additionally, the maximum temperatures also rise in April, peaking at 29°C (84°F) compared to December’s 26°C (79°F). Precipitation is slightly higher in April, with 45 mm (1.8 in) falling over seven days, compared to December’s 39 mm (1.6 in) over five days. Despite the increased precipitation in April, humidity levels are lower at 73% compared to December’s 81%. For more detailed information, you can check Big Pine Key weather in April.

December and May exhibit distinct weather patterns, reflecting the transition from the dry to the wet season. In December, temperatures range from a minimum of 14°C (58°F) to a maximum of 26°C (79°F), with an average of 23°C (73°F). The month sees about 39 mm (1.6 in) of precipitation over approximately 5 days and maintains a high humidity level of 81%. In contrast, May experiences warmer conditions, with temperatures ranging from 22°C (72°F) to 29°C (84°F), and an average of 26°C (79°F). However, it is notably wetter, with precipitation reaching 141 mm (5.6 in) over 11 days, accompanied by lower humidity at 71%. For a deeper look at specific weather conditions, you can refer to Big Pine Key weather in May.

December and June present contrasting weather patterns. In December, temperatures range from a mild 14°C (58°F) to a comfortable 26°C (79°F), with an average of 23°C (73°F). The month sees relatively low rainfall, with only 39 mm (1.6 in) spread over 5 days and higher humidity at 81%. In contrast, June experiences warmer conditions, with temperatures ranging from 24°C (76°F) to a maximum of 31°C (88°F), averaging 28°C (82°F). However, it also brings significantly more rain, totaling 111 mm (4.4 in) over 16 days, accompanied by lower humidity of 69%. For more details, you can check Big Pine Key weather in June.

When comparing the weather in December and July, it's clear that these months present contrasting climates. December sees milder temperatures, with a minimum of 14°C (58°F) and a maximum of 26°C (79°F), while July offers a much warmer range, with minimums at 25°C (78°F) and maximums reaching 31°C (87°F). Precipitation also differs significantly, with December receiving 39 mm (1.6 in) over about 5 days, compared to July's much wetter conditions of 97 mm (3.8 in) across 17 days. Additionally, humidity is higher in December at 81%, whereas July experiences a slightly lower humidity level of 70%. For more detailed information about the weather during July, you can visit Big Pine Key weather in July.

December and August in Big Pine Key present quite different weather experiences. In December, temperatures range from a mild 14°C (58°F) at night to a comfortable 26°C (79°F) during the day, with an average humidity of 81%. Precipitation is relatively low, totaling 39 mm (1.6 in) over about 5 days, making it a pleasant month for outdoor activities.

In contrast, August is much warmer, with nighttime temperatures starting at 25°C (78°F) and peaking at 30°C (87°F) during the day. It experiences significantly higher rainfall, totaling 104 mm (4.1 in) over 18 days, accompanied by a lower humidity level of 72%. This summer month can be quite humid and wet, impacting outdoor plans. For more detailed information on August weather, you can refer to Big Pine Key weather in August.

When comparing the weather in December and September, distinct differences become evident. December boasts milder temperatures, with a minimum of 14°C (58°F) and an average high of 26°C (79°F), creating a comfortable atmosphere. In contrast, September typically experiences warmer temperatures, starting with a minimum of 25°C (77°F) and averaging up to 30°C (87°F), reflecting the peak of summer heat. Additionally, December sees significantly less precipitation, with only 39 mm (1.6 in) over about 5 days, while September is much rainier, receiving 192 mm (7.6 in) across 19 days. The humidity levels are relatively high in both months, with December at 81% and September at 76%. For further insights into September's weather specifics, check Big Pine Key weather in September.

When comparing the weather between October and December, we notice a significant drop in temperatures and precipitation patterns. In December, the temperature ranges from a minimum of 14°C (58°F) to a maximum of 26°C (79°F), with an average of 23°C (73°F), while October is warmer, with temperatures ranging from 19°C (67°F) to 29°C (85°F) and an average of 27°C (81°F). Additionally, December experiences less rainfall, with only 39 mm (1.6 in) over 5 days, compared to October’s 131 mm (5.1 in) over 18 days. The humidity remains relatively high in both months, at 81% in December and 79% in October, creating a humid atmosphere throughout. For more detailed insights on October weather, check out Big Pine Key weather in October.

In comparing the weather of December and November, December tends to be slightly cooler, with minimum temperatures averaging 14°C (58°F) compared to November's 17°C (63°F). The average temperature in December is about 23°C (73°F), while November sees a warmer average of 25°C (77°F). Additionally, December experiences less precipitation, totaling 39 mm (1.6 in) over 5 days, unlike November, which has 68 mm (2.7 in) over 9 days. Humidity levels are comparable, with December at 81% and November at 80%. For more detailed insights, you can check Big Pine Key weather in November.

Compare Big Pine Key's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Big Pine Key

As December unfolds in Big Pine Key, the weather showcases a delightful shift from the sweltering summer months, bringing milder temperatures and refreshing breezes. The crisp air, characterized by an average temperature of 23°C (73°F), invites both locals and visitors to enjoy outdoor activities without the sweltering heat. While December does experience some rain, with an average of 39 mm spread over five days, the manageable humidity of 81% allows for a pleasant atmosphere. This makes December an ideal time to explore the beautiful surroundings, as the cooler temperatures contrast strikingly with the hotter, more humid summer climate. For a deeper understanding of the region's weather patterns throughout the year, check out Big Pine Key Climate.