December Weather in Saint Augustine Beach, United States

Last updated: February 24, 2025

December weather in Saint Augustine Beach, United States offers a delightful blend of mild temperatures and impressive humidity. With a maximum of 26°C (78°F) and an average of 17°C (63°F), the days are comfortably warm, while evenings can dip to a refreshing minimum of 4°C (39°F). However, December is also characterized by moderate precipitation, accumulating around 70 mm (2.7 in) over approximately 8 days, making it advisable to keep an umbrella handy for those occasional showers. Overall, with humidity levels averaging 84%, visitors can expect a pleasantly balmy atmosphere, perfect for enjoying the scenic coastal beauty.

December Temperature in Saint Augustine Beach

In December, Saint Augustine Beach experiences a mild transition as temperatures begin to dip from the warmer months. The minimum temperature hovers around 4°C (39°F), while average daily highs reach a comfortable 26°C (78°F). This month serves as a bridge between the cooler winter months and the lingering warmth of fall, with an average temperature of 17°C (63°F) inviting visitors to enjoy outdoor activities. As the year ends, the climate remains pleasant compared to many northern locales, making December a delightful time to explore the picturesque beachside paradise. With cooling shore breezes and ample sunshine, your winter escape here promises warmth and relaxation.

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

The chart illustrates December temperature patterns in Saint Augustine Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec596365707680818281776863
Data source: Temperature data for Saint Augustine Beach 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 Beach

In December, Saint Augustine Beach experiences a moderate precipitation amount of 70 mm (2.7 in), marking a pleasant transition from the wetter months of summer. With around 8 days of rainfall, this month provides a gentle reprieve from the heavy downpours often seen in June and July, which can exceed 160 mm. Notably, the precipitation begins to taper off, hinting at a seasonal shift as the year draws to a close. Compared to other months, December stands out for its lower rainfall, creating an ideal atmosphere for outdoor activities while still embracing the last remnants of coastal moisture characteristic of Florida's climate.

December Precipitation Trends in Saint Augustine Beach

The chart displays monthly precipitation patterns in Saint Augustine Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec47613482771431611461631239270
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saint Augustine Beach

In December, Saint Augustine Beach experiences a notable increase in humidity, reaching 84%, which is the highest level recorded for the year. This uptick marks a trend of elevated humidity seen throughout the final months, with November at 82% and October at 81%. The earlier months of the year showcase gradually declining humidity levels, peaking in January at 83% and tapering down to a low of 68% in May. However, as the year wraps up, the humidity not only rises again but also underscores a lingering coastal influence, creating a unique atmosphere as the holiday season approaches. This combination of factors contributes to a distinct and slightly more humid environment during December, ideal for reflecting on the year past amid the balmy coastal air.

December Average Humidity in Saint Augustine Beach

This chart illustrates the average monthly humidity levels in Saint Augustine Beach, 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 Beach

As December rolls in, Saint Augustine Beach experiences a notable shift in its UV Index, dipping to 5, which falls into the moderate exposure category. This change marks a contrast from the extreme levels seen in the preceding summer months, where the UV Index peaked at 12. With a burn time of about 30 minutes, outdoor enthusiasts can enjoy the beach while still taking precautionary measures against sun exposure. This seasonal trend highlights the importance of adapting sun safety practices throughout the year, ensuring that even in winter, one remains vigilant under the sun. For more information on UV levels throughout the year, visit Saint Augustine Beach UV Index.

Maximum UV Index Levels in Saint Augustine Beach for December

The chart shows the monthly maximum UV Index (UVI) for Saint Augustine Beach 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.
JanFebMarAprMayJunJulAugSepOctNovDec589111112111111975
Data source: Saint Augustine Beach 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 Beach

As December rolls in, Saint Augustine Beach experiences a gentle shift in sunlight, offering 246 hours of radiant days. While this marks a dip from the peak sunshine of 334 hours in July, it still provides a delightful atmosphere for beachgoers. Notably, the trend reveals a fascinating ebb and flow of daylight throughout the year, with the sun shining brightest in late spring and summer. Despite the cooler temperatures, December's ample sunshine continues to invite locals and visitors alike to enjoy the serene beaches and stunning sunsets. The consistent presence of sunshine throughout the year, even in winter, makes Saint Augustine Beach a charming destination for those seeking a winter escape.

Monthly Sunshine Duration in Saint Augustine Beach: December Highlighted

The December sunshine duration represents the total number of hours Saint Augustine Beach 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.
JanFebMarAprMayJunJulAugSepOctNovDec205h237h302h303h328h305h334h319h301h288h249h246h
Data source: Saint Augustine Beach December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint Augustine Beach During December

December marks a notable shift in the likelihood of sunny weather for Saint Augustine Beach, with the chance of sun reaching 52%—the highest percentage of the year. This increase contrasts sharply with the summer months, where the sunniest days dwindle to a mere 17-21% chance in July and August. As the year moves toward winter, the potential for clear skies gradually improves, peaking in December and suggesting a delightful early winter retreat. Following the trend from November at 45%, December's sun-filled tendencies make it a promising month for those looking to soak in some winter sun along the picturesque shores of Florida.

Percentage of Sunny Days in December in Saint Augustine Beach

The chart illustrates the percentage of sunny days in Saint Augustine Beach 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 Beach experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec42%44%40%50%50%21%21%17%36%46%45%52%
Data source: Saint Augustine Beach December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint Augustine Beach in December

In Saint Augustine Beach, December ushers in a season of shorter days, with the daylight duration settling at 10 hours—similar to both January and November. As the year progresses from the warmth of summer in June, which boasts the longest stretch of 14 hours of daylight, there's a gradual decline through the fall months, ultimately settling into the cozy winter as daylight reaches its annual low. This consistent pattern of increasing daylight from January to June and decreasing daylight from July to December highlights the rhythmic ebb and flow of the seasons in this charming coastal city, inviting residents and visitors alike to embrace the beauty of each unique period.

Average Daylight Hours in Saint Augustine Beach for December

The chart illustrates the variation in daylight duration in Saint Augustine Beach 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 8m12h12h 54m13h 39m14h13h 49m13h 9m12h 17m11h 24m10h 38m10h 15m
Data source: Saint Augustine Beach daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Saint Augustine Beach

In Saint Augustine Beach, the December wind dances gently at an average speed of 3.4 m/s (8 mph), a slight dip from the brisker winds of November, which often invigorate the air at 4.3 m/s (10 mph). As the year winds down, it’s interesting to note that the coastal breezes have generally mellowed since their peak in March, when they reach 4.4 m/s (10 mph). The trend showcases a gradual decline from the more energetic gusts of early spring, settling into a more tranquil rhythm that invites visitors to enjoy the serene beach vistas. This seasonal shift not only enhances the holiday charm of December, but also underscores the coastal area's tendency to embrace milder winds as winter approaches.

Average December Wind Speed in Saint Augustine Beach

The chart displays monthly wind speed patterns in Saint Augustine Beach, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.83.94.43.84.13.63.23.22.93.44.33.4 m/s
Data source: Saint Augustine Beach December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Saint Augustine Beach Compares to Other Months

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

December and January in Saint Augustine Beach exhibit some notable differences in weather patterns. In December, temperatures range from a minimum of 4°C (39°F) to a maximum of 26°C (78°F), with an average temperature of 17°C (63°F). The month experiences higher precipitation, totaling 70 mm (2.7 in) over 8 days, and humidity levels hover around 84%. In contrast, January sees cooler minimum temperatures dropping to 0°C (33°F) but maintains a similar maximum temperature of 25°C (77°F), with an average of 15°C (60°F). Precipitation decreases to 47 mm (1.9 in) and occurs over just 5 days, while humidity remains slightly lower at 83%. For more detailed information, visit Saint Augustine Beach weather in January.

In December, the weather features a minimum temperature of 4°C (39°F) and an average high of 26°C (78°F), while February sees a slightly warmer minimum of 5°C (41°F) but retains a similar average of 17°C (63°F) and maximum of 26°C (79°F). December experiences a bit more rainfall with 70 mm (2.7 in) across 8 days, compared to February's 61 mm (2.4 in) over 9 days. Humidity levels are also slightly higher in December at 84%, while February enjoys a more comfortable 80%. For more details about February's weather in Saint Augustine Beach, you can check out this link: Saint Augustine Beach weather in February.

In December, the weather is characterized by a minimum temperature of 4°C (39°F) and an average high of 26°C (78°F), with a notable humidity level of 84%. The month experiences about 70 mm (2.7 in) of precipitation spread over 8 days, making it relatively damp. In contrast, March brings slightly warmer temperatures, with a minimum of 6°C (44°F) and an average maximum of 28°C (82°F). It also sees less rainfall, accumulating only 34 mm (1.3 in) over 6 days, and a lower humidity of 75%. For a detailed overview of March weather, you can refer to Saint Augustine Beach weather in March.

In comparing the weather of December and April, we see a noticeable shift in temperatures and humidity levels. December experiences milder temperatures, with a minimum of 4°C (39°F) and an average of 17°C (63°F), while April warms up significantly, boasting a minimum of 11°C (52°F) and an average of 21°C (70°F). Additionally, the maximum temperature in April reaches 30°C (85°F), compared to December's maximum of 26°C (78°F). Precipitation levels are quite similar, with December receiving 70 mm (2.7 in) across 8 days and April slightly higher at 82 mm (3.2 in) over 7 days. Humidity is higher in December at 84%, while it drops to a more comfortable 70% in April. For a closer look at the specifics of April weather, you can check out Saint Augustine Beach weather in April.

December and May exhibit distinctly different weather patterns. In December, temperatures range from a cooler minimum of 4°C (39°F) to a comfortable average of 17°C (63°F), with a maximum of 26°C (78°F). The month sees 70 mm (2.7 in) of precipitation over 8 days, and humidity levels are relatively high at 84%. In contrast, May boasts warmer temperatures, with minimums starting at 14°C (58°F) and reaching an average of 24°C (76°F) and maximums of 32°C (90°F). Although May has slightly more precipitation at 77 mm (3.0 in) over the same number of days, the humidity is lower at 68%. For a more detailed look at the weather in May, you can visit Saint Augustine Beach weather in May.

When comparing the weather in December and June, notable differences emerge. December enjoys a mild range of temperatures, with a minimum of 4°C (39°F) and averaging around 17°C (63°F), while the maximum can reach up to 26°C (78°F). Precipitation is relatively low, with about 70 mm (2.7 in) falling over approximately 8 days and humidity levels are quite high at 84%.

In sharp contrast, June is much warmer, with a minimum temperature of 22°C (72°F) and an average of 26°C (80°F), peaking at a sweltering 33°C (92°F). Rainfall significantly increases to 143 mm (5.6 in) spread over about 22 days, and while humidity drops to 75%, the combination of heat and moisture can still create a tropical feel. For more insights on this month, check out Saint Augustine Beach weather in June.

When comparing the weather between December and July, the contrasts are quite striking. December sees milder temperatures, with a minimum of 4°C (39°F) and an average high of 26°C (78°F), alongside relatively high humidity at 84%. In contrast, July is significantly warmer, with minimum temperatures around 24°C (75°F) and maximums reaching up to 33°C (91°F). Additionally, July experiences much higher precipitation, totaling 161 mm (6.3 in) over approximately 23 days, compared to December's 70 mm (2.7 in) spread across just 8 days. For more details about July weather, you can check Saint Augustine Beach weather in July.

When comparing December and August weather, a striking contrast emerges. December boasts a milder temperature range, with minimums as low as 4°C (39°F) and maximums reaching up to 26°C (78°F), averaging around 17°C (63°F). It experiences less precipitation, totaling 70 mm (2.7 in) over about 8 days, while humidity levels linger at a relatively high 84%. In contrast, August is characterized by a significantly warmer climate, with minimum temperatures starting at 24°C (75°F) and maximums soaring to 34°C (93°F), and an average of 28°C (82°F). August also sees increased rainfall, with 146 mm (5.8 in) occurring over approximately 24 days, and a slightly lower humidity of 81%. For more detailed insights, you can check Saint Augustine Beach weather in August.

In comparing the weather between September and December, significant differences can be observed. September typically experiences warmer temperatures, with minimums around 20°C (68°F) and averages peaking at 27°C (81°F), whereas December cools down significantly, with a minimum of 4°C (39°F) and an average of 17°C (63°F). Additionally, September is much wetter, receiving 162 mm (6.4 in) of precipitation over 19 days, compared to December's 70 mm (2.7 in) over only 8 days. Humidity levels are quite similar, with September at 83% and December slightly higher at 84%. For a detailed look at September weather, you can refer to Saint Augustine Beach weather in September.

When comparing the weather in December and October, we see notable differences in both temperature and precipitation. December experiences milder temperatures, with a minimum of 4°C (39°F) and an average high of 26°C (78°F), while October boasts warmer conditions, with minimums of 11°C (51°F) and average highs reaching 32°C (89°F). In terms of precipitation, December sees less rain, totaling 70 mm (2.7 in) over 8 days, compared to October's 123 mm (4.9 in) that falls over 16 days. The humidity is slightly higher in December at 84%, compared to October's 81%. For a more detailed look at the October weather specifically, you can check Saint Augustine Beach weather in October.

In comparing the weather between November and December, we observe that December experiences milder temperatures, with a minimum of 4°C (39°F) compared to November's 6°C (43°F). The average temperatures in December also dip to 17°C (63°F), while November maintains a warmer average of 20°C (68°F). Additionally, December's maximum temperature reaches 26°C (78°F), slightly lower than November's 30°C (86°F). Precipitation in December totals 70 mm (2.7 in) over 8 days, which is less than November's 91 mm (3.6 in) across 10 days, indicating that December is both drier and cooler. Notably, humidity remains relatively high in both months, with December at 84% and November at 82%. For more insights on November weather, you can check Saint Augustine Beach weather in November.

Compare Saint Augustine Beach's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Saint Augustine Beach

In December, Saint Augustine Beach experiences a notable shift in weather compared to the rest of the year. With average temperatures hovering around a comfortable 17°C (63°F), daytime warmth contrasts with cooler nights that can drop to a brisk 4°C (39°F). This month also brings a higher humidity level of 84%, creating a mild yet occasionally damp atmosphere, with about 70 mm of precipitation spread over eight days. As the holiday season sets in, December provides a unique blend of seasonal charm and mild coastal weather, making it a distinct time for visitors and residents alike. For more detailed information, explore the Saint Augustine Beach Climate page.