December Weather in Saint Augustine, United States

Last updated: February 24, 2025

December in Saint Augustine, United States brings a delightful blend of mild temperatures and occasional rain. With a maximum high of 24°C (75°F) and an average of 17°C (63°F), the weather is generally pleasant, though evenings can dip to a cooler 5°C (41°F). Visitors may encounter about 85 mm (3.3 in) of rain over approximately 10 days, leading to a humid environment at around 84%. This moisture contributes to the region's lush greenery, making December an enchanting time to explore the historical beauty of Saint Augustine.

December Temperature in Saint Augustine

In December, the temperatures in Saint Augustine offer a gentle transition from the warmth of fall to the cooler embrace of winter. With average highs reaching up to 24°C (75°F), the city enjoys pleasantly mild days, perfect for outdoor festivities and strolls along the historic streets. Nights are cooler, with minimum temperatures hovering around 5°C (41°F), inviting cozy evenings by the fire. This month sees a delightful blend of warmth and chill, aligning with the seasonal festivities and making it an inviting time to explore the rich cultural heritage of this coastal gem. As the year winds down, December's climate encourages both relaxation and adventure in this picturesque destination.

December Weather in Saint Augustine: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Saint Augustine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec596264697579818180776863
Data source: Temperature data for Saint Augustine 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 Saint Augustine

In December, Saint Augustine experiences a moderate level of precipitation, with an average of 85 mm (3.3 in) falling over about 10 days. This brings the total for late fall to a consistent range, as December's rainfall prepares the region for the cooler winter months. Notably, it's a slight decline from the heavier downpours of autumn, particularly November, when 107 mm was recorded. As the year wraps up, December's weather marks a transition, bridging the wetter conditions of summer with the drier months ahead, while still offering a vibrant array of coastal foliage and mild temperatures that define the holiday season.

December Precipitation Trends in Saint Augustine

The chart displays monthly precipitation patterns in Saint Augustine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5578468158881129115513010785
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saint Augustine

In December, Saint Augustine experiences a notable increase in humidity, with levels reaching 84%, the highest in the year. This uptick reflects a trend where winter months tend to have consistently elevated moisture, beginning with November's 82% and building through the final month of the year. As the year progresses, humidity shows a general decline from the peak summer months of July and August, hovering around the high 70s and low 80s. This seasonal rhythm highlights Saint Augustine's maritime climate, emphasizing its transition to a damp and cooler winter, setting the scene for the city's historic charm paired with a cozy, mist-laden atmosphere.

December Average Humidity in Saint Augustine

This chart illustrates the average monthly humidity levels in Saint Augustine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec83%80%75%70%68%75%80%81%83%81%82%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saint Augustine

As the year winds down, December in Saint Augustine brings a welcome reprieve from the intense sun of the preceding months. With a UV Index of 5, categorized as moderate, locals and visitors alike can enjoy an increased burn time of 30 minutes without as much risk of skin damage. This contrasts sharply with the extreme levels experienced during the summer months, when the UV Index soared to 11, demanding cautious sun safety measures and limiting burn times to just 10 minutes. While December's UV rays are milder, it’s still prudent to be mindful of sun exposure. For more information on navigating the UV Index throughout the year, check out Saint Augustine UV Index.

Maximum UV Index Levels in Saint Augustine for December

The chart shows the monthly maximum UV Index (UVI) for Saint Augustine 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.
JanFebMarAprMayJunJulAugSepOctNovDec589111111111111975
Data source: Saint Augustine 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 Saint Augustine

As December settles in Saint Augustine, the city enjoys 241 hours of sunshine, adding a warm glow to the holiday spirit. While the month may not boast the highest sunlit days compared to summer, it still reflects a consistent trend of abundant light that the area is known for, especially following the peak in hours experienced during the vibrant months of May to July, where sunseekers basked in over 330 hours of radiant warmth. As the year winds down, December's sunshine acts as a gentle reminder of the bright days that lie ahead, bridging the cozy winter season with a promise of brighter skies in the new year.

Monthly Sunshine Duration in Saint Augustine: December Highlighted

The December sunshine duration represents the total number of hours Saint Augustine 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.
JanFebMarAprMayJunJulAugSepOctNovDec205h231h302h306h332h307h338h319h302h289h247h241h
Data source: Saint Augustine December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint Augustine During December

Saint Augustine experiences a noteworthy trend in December, boasting a 52% chance of sunny weather—a figure that ties with the sunnier months of April and May. Transitioning from the earlier months of the year, where the likelihood of sunshine hovers around 41% to 47%, December provides a festive and bright end to the year. This promising percentage suggests that visitors and locals alike can expect pleasant days to enjoy the city's historic charm, making it an inviting time for outdoor activities and holiday celebrations under the sun. With the chilly grip of winter on the horizon for many places, Saint Augustine's December shines as a beacon of warmth and light.

Percentage of Sunny Days in December in Saint Augustine

The chart illustrates the percentage of sunny days in Saint Augustine 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 Saint Augustine experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec41%45%41%52%52%21%24%18%39%47%46%52%
Data source: Saint Augustine December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint Augustine in December

In Saint Augustine, the ebb and flow of daylight throughout the year creates a captivating seasonal rhythm. As winter settles in, December offers a brisk 10 hours of daylight, matching the transition from October and November. This pattern hints at a cyclical phenomenon, with daylight gradually increasing from early winter's ten hours to a vibrant 14 hours by mid-year in June. The sun casts its longest glow in the summer months, inviting longer days for outdoor adventures, before the daylight diminishes again as the year winds down. Overall, the gentle oscillation of daylight highlights the beauty of seasonal changes, culminating in a December where shorter days bring cozy evenings and twinkling lights to the historic streets of Saint Augustine.

Average Daylight Hours in Saint Augustine for December

The chart illustrates the variation in daylight duration in Saint Augustine throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 27m11h 7m12h12h 54m13h 39m14h 1m13h 49m13h 9m12h 17m11h 24m10h 37m10h 14m
Data source: Saint Augustine daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Saint Augustine

In December, the winds of Saint Augustine transition to a gentle breeze, averaging 4.3 m/s (10 mph). This slight dip follows a noticeable spike in November, where gusts reached 5.7 m/s (13 mph), hinting at a pattern of increased wind speeds as the year comes to a close. Throughout the year, wind speeds generally fluctuate, peaking in the lively months of March and November, and tapering off during the warmer summer months. As December unfolds, the calmer winds create a serene atmosphere, perfect for enjoying the historic charm of this coastal city while hinting at the approaching winter season.

Average December Wind Speed in Saint Augustine

The chart displays monthly wind speed patterns in Saint Augustine, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.85.05.64.75.24.74.14.23.94.55.74.3 m/s
Data source: Saint Augustine December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Saint Augustine Compares to Other Months

The weather in Saint Augustine 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 Saint Augustine and find detailed weather information for every month.

In December, the weather is generally milder with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 24°C (75°F), and an average temperature of 17°C (63°F). The month experiences about 85 mm (3.3 inches) of precipitation over approximately 10 days, and humidity levels are relatively high at 84%. In contrast, January sees a slight dip in minimum temperatures, dropping to 1°C (34°F), while the maximum remains the same at 24°C (75°F) and the average temperature decreases to 15°C (59°F). Additionally, January has less rainfall, with only 55 mm (2.2 inches) over about 5 days, and a similar humidity level at 83%. For more detailed information about the conditions in January, check out Saint Augustine weather in January.

In December, the weather in Saint Augustine showcases mild temperatures with a minimum of 5°C (41°F) and a comfortable average of 17°C (63°F), peaking at a maximum of 24°C (75°F). The month experiences considerable rainfall, totaling 85 mm (3.3 in) over approximately 10 days, accompanied by high humidity at 84%.

In contrast, February sees slightly warmer temperatures, with a minimum of 6°C (43°F) and an average temperature that remains consistent at 17°C (62°F), still capping at 24°C (75°F). Precipitation decreases to 78 mm (3.1 in) over about 11 days, and humidity also drops to 80%. Overall, while December is wetter and more humid, February maintains similar warmth with slightly less precipitation. For more details on the February weather, visit Saint Augustine weather in February.

December and March in Saint Augustine exhibit distinct weather patterns. December experiences slightly cooler temperatures, with a minimum of 5°C (41°F) and an average of 17°C (63°F), while March boasts warmer conditions, starting at a minimum of 7°C (44°F) and averaging 18°C (65°F). The maximum temperatures in March also peak a bit higher at 26°C (79°F) compared to December's 24°C (75°F). In terms of precipitation, December sees more rainfall at 85 mm (3.3 in) over about 10 days, whereas March has less precipitation at 46 mm (1.8 in) spread over 6 days, accompanied by lower humidity levels at 75%. For a more detailed look at Saint Augustine's weather in March, check out Saint Augustine weather in March.

In December, the weather features a cooler temperature range, with minimums around 5°C (41°F) and maximums reaching 24°C (75°F), while the average temperature stands at 17°C (63°F). Rainfall is fairly common, with approximately 85 mm (3.3 in) of precipitation over about 10 days, resulting in a higher humidity level of 84%. In contrast, April brings milder conditions with minimum temperatures around 11°C (52°F) and maximums peaking at 27°C (82°F), leading to a comfortable average of 21°C (70°F). Precipitation slightly decreases to 81 mm (3.2 in) over just 8 days, and humidity levels drop to 70%, resulting in a fresher feel. For a detailed look at April's climate, you can visit Saint Augustine weather in April.

In December, the weather in Saint Augustine is relatively mild, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 24°C (75°F) and an average of 17°C (63°F). The month experiences 85 mm (3.3 in) of precipitation over about 10 days, resulting in a high humidity level of 84%. In contrast, May brings warmer conditions, with temperatures starting at a minimum of 15°C (60°F) and peaking at 30°C (87°F), averaging 24°C (75°F). Additionally, May sees less precipitation at 58 mm (2.3 in) over about 6 days and lower humidity at 68%. This shift highlights a transition from the cooler, wetter December to the warmer, drier May. For more detailed information, you can refer to Saint Augustine weather in May.

In December, temperatures in Saint Augustine range from a minimum of 5°C (41°F) to a maximum of 24°C (75°F), with an average of 17°C (63°F). The month experiences relatively high humidity at 84% and receives around 85 mm (3.3 in) of precipitation over approximately 10 days. In contrast, June boasts warmer temperatures, with a minimum of 22°C (71°F) and a maximum of 31°C (88°F), averaging 26°C (79°F). While June has slightly more precipitation at 88 mm (3.5 in) over about 14 days, the humidity is noticeably lower at 75%. For more detailed information about June weather, you can visit Saint Augustine weather in June.

December and July present distinctly different weather patterns. In December, temperatures range from a mild minimum of 5°C (41°F) to a pleasant average of 17°C (63°F), peaking at 24°C (75°F). This month experiences about 85 mm (3.3 in) of precipitation across approximately 10 days, accompanied by relatively high humidity at 84%. In contrast, July boasts significantly warmer conditions, with temperatures starting at a minimum of 24°C (75°F), an average of 27°C (81°F), and a maximum that reaches 31°C (89°F). Precipitation increases to 112 mm (4.4 in) over roughly 16 days, though humidity is slightly lower at 79%. For those interested in a detailed outlook, check Saint Augustine weather in July.

When comparing the weather in December and August, we see a marked contrast in temperatures and overall conditions. December features milder temperatures, with a minimum of 5°C (41°F) and an average of 17°C (63°F), peaking at a maximum of 24°C (75°F), while August presents much warmer conditions, with a minimum of 25°C (76°F) and an average of 27°C (81°F), reaching highs of 32°C (89°F). Precipitation is relatively similar, with December receiving 85 mm (3.3 in) over 10 days and August slightly higher at 91 mm (3.6 in) across 16 days. Humidity levels are quite high in both months, though December is notably more humid at 84%, compared to August's 81%. For more detailed insights into August weather, you can check out Saint Augustine weather in August.

When comparing the weather in December and September, notable differences emerge. December features milder temperatures, with a minimum of 5°C (41°F) and an average of 17°C (63°F), while September boasts much warmer conditions, with minimums around 20°C (68°F) and average highs reaching 27°C (81°F) to 32°C (90°F). Precipitation levels also vary; December sees 85 mm (3.3 in) of rain over about 10 days, whereas September experiences significantly higher rainfall of 155 mm (6.1 in) across 16 days. Humidity remains relatively constant, with December at 84% and September at 83%. For more detailed insights into September weather specifics, you can check Saint Augustine weather in September.

When comparing the weather in December and October, notable differences emerge. December experiences cooler temperatures, with average highs reaching 24°C (75°F) and lows around 5°C (41°F), while October is warmer, boasting averages of 25°C (77°F) during the day and minimums of 12°C (54°F). Additionally, October sees increased rainfall, with 130 mm (5.1 in) over about 16 days compared to December's 85 mm (3.3 in) spread over 10 days. Even though humidity remains relatively high in both months, October has slightly lower humidity levels at 81%, compared to December's 84%. For a closer look at the climate specifics, check out Saint Augustine weather in October.

In comparing the weather of December and November, we see some notable differences. December generally experiences a slight decrease in temperature, with average highs of 24°C (75°F) compared to November's warmer average of 28°C (83°F). Additionally, December brings cooler minimum temperatures, dipping to 5°C (41°F) versus November's milder 7°C (45°F). Precipitation also varies slightly between the two months, with December receiving 85 mm (3.3 in) over 10 days, while November sees more rain at 107 mm (4.2 in) across the same number of days. Humidity remains similar, hovering around 84% in December and 82% in November, indicating a consistently humid atmosphere during this time. For more detailed information about the weather in November, check out Saint Augustine weather in November.

Compare Saint Augustine's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Saint Augustine

As December settles over Saint Augustine, the weather becomes notably cooler and more humid compared to the preceding months. Although daytime highs can reach a pleasant 24°C (75°F), the evenings usher in a refreshing drop to about 5°C (41°F). This month also witnesses a rise in average precipitation, totaling around 85 mm across about 10 days, offering a stark contrast to the drier autumn months. Overall, December creates a more cozy atmosphere, perfect for holiday festivities while still inviting visitors to explore the city's rich history. For a deeper understanding of what to expect throughout the year, visit Saint Augustine Climate.