December Weather in Myrtle Beach, United States

Last updated: February 24, 2025

December in Myrtle Beach offers a blend of mild temperatures and a cozy coastal charm. With maximum highs reaching 24°C (76°F) and average lows around 11°C (52°F), the weather can be quite pleasant despite occasional chill, with minimum temperatures dipping to -4°C (25°F). Visitors can expect about 130 mm (5.1 in) of precipitation over 9 days, contributing to the region's lush landscapes. The humidity level stands at a notable 84%, enhancing the refreshing coastal air. Whether you’re strolling along the beach or exploring local attractions, December presents a unique opportunity to enjoy Myrtle Beach's off-season allure.

December Temperature in Myrtle Beach

In December, Myrtle Beach experiences a notable transition as temperatures begin to dip, marking the onset of winter. With a minimum temperature around -4°C (25°F), the chill in the air contrasts sharply with the month’s average of 11°C (52°F); however, the maximum can still reach a pleasant 24°C (76°F), offering remnants of autumn warmth. This fluctuation reveals a blend of coolness and mild days typical of December in the region, where visitors can enjoy the festive atmosphere without the intense cold of northern climates. As the year winds down, Myrtle Beach provides a unique coastal experience, balancing brisk evenings with sun-kissed afternoons.

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

The chart illustrates December temperature patterns in Myrtle Beach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495457657378818077705752
Data source: Temperature data for Myrtle 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 Myrtle Beach

In December, Myrtle Beach experiences a significant surge in precipitation with an average rain gauge reading of 130 mm (5.1 in), marking it as one of the wetter months of the year. This uptick in rainfall typically occurs over 9 days, providing a notable contrast to the drier spell seen in October with only 61 mm (2.4 in). As the year draws to a close, December’s precipitation is indicative of a broader trend where the coastal region sees increasing precipitation during the late fall and winter months. This pattern often serves to refresh the local environment, setting the stage for the vibrant growth that follows in the spring. Alongside the rainfall, temperatures gradually cool, contributing to a wintry ambiance that many find charming despite the dampness.

December Precipitation Trends in Myrtle Beach

The chart displays monthly precipitation patterns in Myrtle 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.
JanFebMarAprMayJunJulAugSepOctNovDec668771941221571792131786186130
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Myrtle Beach

In December, humidity in Myrtle Beach rises to 84%, marking the month as the most humid of the year. This increase is part of a notable trend in the region's climate; although January kickstarts the year with 83% humidity, it gradually decreases to a low of 78% from April through October. As summer transitions into autumn, humidity levels oscillate around 81-82%, providing a palpable stickiness typical of coastal environments. However, as the calendar turns to winter, the spike in December signifies a return to a more humid atmosphere, setting the stage for the moisture-laden days of the new year. Overall, Myrtle Beach experiences a circular humidity cycle, where winter brings higher levels that precede repeats of milder months in a beautiful climatic dance.

December Average Humidity in Myrtle Beach

This chart illustrates the average monthly humidity levels in Myrtle 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%79%78%78%78%82%81%81%78%82%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Myrtle Beach

In Myrtle Beach, December brings a relief from the extreme UV levels that dominate the summer months. With a UV Index of 4, categorized as moderate, the sun is less intense, allowing for a more leisurely outdoor experience. This means you can enjoy approximately 30 minutes of sun exposure before needing to take precautions against sunburn. The trend reveals a gradual shift from the extreme rates of UV Index 11 experienced in the summer, through the very high levels of spring and fall, to the more forgiving winter rays. As the year winds down, it's a great time to embrace the outdoor activities without the typical summer urgency to seek shade. For more information, check the detailed Myrtle Beach UV Index.

Maximum UV Index Levels in Myrtle Beach for December

The chart shows the monthly maximum UV Index (UVI) for Myrtle 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.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Myrtle 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 Myrtle Beach

In December, Myrtle Beach basks in around 216 hours of sunshine, a delightful embrace of light as the year winds down. This marks a slight dip from the vibrant November sun, which offered 247 hours. As temperatures cool, December's hours reflect a gradual trend downward from the peak of summer, where July dazzles with an impressive 343 hours. However, even in winter's embrace, the coastal charm remains inviting, providing a beautiful backdrop for holiday getaways. Visitors can still delight in mild days filled with sunlight, continuing the seasonal transformation that sees extended hours of brightness each month from January's modest 186 hours to the flourishing warmth of May's 337 hours. The rhythm of sunshine in Myrtle Beach captures both the essence of winter and the lingering warmth of a vibrant coastal lifestyle.

Monthly Sunshine Duration in Myrtle Beach: December Highlighted

The December sunshine duration represents the total number of hours Myrtle 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.
JanFebMarAprMayJunJulAugSepOctNovDec186h210h273h309h337h319h343h320h301h292h247h216h
Data source: Myrtle Beach December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Myrtle Beach During December

In December, Myrtle Beach experiences a 47% chance of sunny weather, reflecting a trend that offers a moderate likelihood of clear skies during the winter season. This percentage is notably consistent with earlier months like January and October, suggesting a relatively stable pattern of sun exposure as the year wraps up. Interestingly, November sees a peak in sunshine with a 62% chance, providing a warm transition into December. While the holiday season may bring cooler temperatures, the potential for bright days remains an inviting aspect of this coastal getaway, allowing visitors to enjoy the festive atmosphere under the Southern sun.

Percentage of Sunny Days in December in Myrtle Beach

The chart illustrates the percentage of sunny days in Myrtle 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 Myrtle Beach experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%37%37%59%49%32%39%35%53%47%62%47%
Data source: Myrtle Beach December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Myrtle Beach in December

In Myrtle Beach, December marks the turning point of daylight hours, with a modest 9 hours of daylight, the shortest of the year. The transition from the longer days of summer—where daylight stretches to a generous 14 hours in June and July—seamlessly shifts through the autumn months. By November, daylight dips to 10 hours, gently indicating the onset of winter. As the year progresses, the trend reveals a fascinating rhythm: spring months like March and April bask in increasing light, peaking at 13 hours in May before summer reigns. This gradual decrease through the fall and into December showcases the seasonal ebb and flow of sunlight, inviting residents and visitors alike to embrace the cozy charm of winter in this vibrant coastal city.

Average Daylight Hours in Myrtle Beach for December

The chart illustrates the variation in daylight duration in Myrtle 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 10m10h 58m11h 59m13h 2m13h 55m14h 21m14h 7m13h 20m12h 20m11h 17m10h 23m9h 55m
Data source: Myrtle Beach daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Myrtle Beach

In December, Myrtle Beach witnesses a gentle breeze with an average wind speed of 3.4 m/s (8 mph), maintaining the pleasant, calm atmosphere typical of the winter months. Following a seasonal trend, the wind speeds have gradually decreased since the summer peak, where July recorded its lowest at 3.0 m/s (7 mph). As the year wraps up, December’s winds reflect a slightly revitalized blast compared to the summer lull, echoing patterns seen throughout previous months. Despite the decline from earlier spring months, where March peaked at 3.9 m/s (9 mph), December's softness adds a tranquil charm to this coastal paradise, making it an inviting destination for those seeking a serene escape.

Average December Wind Speed in Myrtle Beach

The chart displays monthly wind speed patterns in Myrtle 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.63.73.93.73.53.43.02.52.83.23.63.4 m/s
Data source: Myrtle Beach December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Myrtle Beach Compares to Other Months

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

In December, the weather features a broader temperature range with minimums dropping to -4°C (25°F) and maximums reaching up to 24°C (76°F), resulting in an average of 11°C (52°F). This month experiences higher precipitation levels at 130 mm (5.1 in) over about 9 days, along with considerable humidity at 84%. In contrast, January sees a cooler average temperature of 10°C (50°F) with minimums registering at -9°C (15°F) and maximums slightly higher at 25°C (77°F). Precipitation decreases significantly to 66 mm (2.6 in) over 8 days, accompanied by a marginally lower humidity of 83%. For more detailed information, you can visit Myrtle Beach weather in January.

In December, the weather features a wider temperature range with minimums dipping to -4°C (25°F) and maximums reaching 24°C (76°F), averaging around 11°C (52°F). This month also experiences higher precipitation levels at 130 mm (5.1 in) spread over 9 days, accompanied by high humidity at 84%. In contrast, February offers slightly warmer conditions, with minimum temperatures of -3°C (27°F) and maximums reaching 26°C (79°F), averaging 12°C (54°F). Precipitation is reduced to 87 mm (3.4 in), also over 9 days, and humidity lowers to 79%. For those interested in more details about February's weather, check out Myrtle Beach weather in February.

December and March present contrasting weather patterns. In December, temperatures range from a chilly -4°C (25°F) at night to a pleasant 24°C (76°F) during the day, with an average of 11°C (52°F). There is considerable precipitation, totaling 130 mm (5.1 in) over approximately 9 days, and humidity levels are relatively high at 84%. In comparison, March shows a slight increase in average temperature, reaching an average of 14°C (58°F) and peaking at 28°C (83°F), while the nighttime lows remain just slightly warmer at -3°C (27°F). Precipitation decreases to 71 mm (2.8 in) over about 8 days, with a slight drop in humidity to 79%. For more detailed insights, you can visit Myrtle Beach weather in March.

In December, the weather tends to be quite chilly, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 24°C (76°F) and an average of 11°C (52°F). This month also sees higher precipitation, totaling 130 mm (5.1 in) over about 9 days, accompanied by a humidity level of 84%. In contrast, April brings a significant warming trend, with temperatures reaching a minimum of 2°C (35°F) and soaring to a maximum of 29°C (85°F), yielding an average temperature of 18°C (65°F). Precipitation decreases to 94 mm (3.7 in) over 8 days, and the humidity lowers slightly to 78%. For more details on the mild and pleasant April weather, you can check Myrtle Beach weather in April.

December and May showcase stark contrasts in weather conditions. In December, temperatures range from a chilly minimum of -4°C (25°F) to a comfortable maximum of 24°C (76°F), with an average of 11°C (52°F). The month sees approximately 130 mm (5.1 in) of precipitation over nine days, accompanied by relatively high humidity at 84%. In comparison, May boasts much warmer temperatures, with a minimum of 9°C (48°F) and a maximum reaching up to 36°C (97°F), averaging around 23°C (73°F). Precipitation in May is slightly lower at 122 mm (4.8 in) across ten days, and the humidity is also lower at 78%. For a detailed look at conditions specific to this month, check out Myrtle Beach weather in May.

December and June present contrasting weather conditions. In December, temperatures can be quite chilly, ranging from a minimum of -4°C (25°F) to a maximum of 24°C (76°F), with an average temperature of 11°C (52°F). This month sees typical precipitation of 130 mm (5.1 in) over about 9 days, accompanied by high humidity at 84%. In stark contrast, June offers a much warmer climate, with temperatures varying from a minimum of 14°C (57°F) to a sweltering maximum of 34°C (94°F), and an average of 25°C (78°F). Rainfall is slightly higher in June, totaling 156 mm (6.2 in) over 17 days, yet the humidity is lower at 78%. For more details on the specifics of June weather, you can explore Myrtle Beach weather in June.

December and July present a striking contrast in weather conditions. In December, temperatures range from a chilly -4°C (25°F) to a mild 24°C (76°F), with an average of 11°C (52°F). It's a wetter month, with 130 mm (5.1 in) of precipitation spread over 9 days and higher humidity at 84%. In contrast, July boasts much warmer temperatures, with a minimum of 18°C (65°F) and a maximum of 34°C (93°F), averaging 27°C (81°F). It's also a rainier month with 179 mm (7.0 in) of precipitation on 18 days, though humidity remains slightly lower at 82%. For more detailed information about July weather, you can visit Myrtle Beach weather in July.

When comparing the weather in December and August, it’s clear that each month offers a distinct experience. December features cooler temperatures, with a minimum of -4°C (25°F) and an average of 11°C (52°F), while August boasts a much warmer climate, with temperatures ranging from a minimum of 19°C (66°F) to an average of 27°C (80°F). Precipitation levels also vary significantly; December receives 130 mm (5.1 in) over about 9 days, whereas August sees a higher 212 mm (8.4 in) spread across 22 days. Despite the increased rainfall in August, humidity levels remain fairly similar, at 84% in December and 81% in August. For more details on what to expect during this warm month, you can check out Myrtle Beach weather in August.

In comparing the weather of December and September, we see notable differences in temperature and precipitation. December experiences much cooler temperatures, with averages ranging from a minimum of -4°C (25°F) to a maximum of 24°C (76°F), while September boasts warmer conditions, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 34°C (93°F). Precipitation levels also differ, with December receiving 130 mm (5.1 in) over approximately 9 days, compared to September's higher total of 178 mm (7.0 in) across 12 days. Interestingly, the humidity remains relatively high in both months, at 84% in December and 81% in September. For more detailed insights on September weather, you can check Myrtle Beach weather in September.

When comparing the weather in December and October, it's clear that October enjoys warmer temperatures, with an average of 21°C (70°F) and maximums reaching up to 33°C (92°F). In contrast, December experiences cooler temperatures, ranging from a minimum of -4°C (25°F) to a maximum of 24°C (76°F). Additionally, October has significantly less precipitation, at 61 mm (2.4 in) over just 8 days, while December sees more rainfall with 130 mm (5.1 in) across 9 days. Humidity levels are also slightly higher in December at 84%, compared to 78% in October. For more detailed insights, you can check Myrtle Beach weather in October.

When comparing the weather in December to November, December typically experiences cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 24°C (76°F), whereas November has a minimum of 0°C (32°F) and a maximum of 27°C (82°F). The average temperature in December hovers around 11°C (52°F), compared to November’s average of 14°C (57°F). Additionally, December sees a higher total precipitation of 130 mm (5.1 in) over 9 days, compared to November’s 86 mm (3.4 in) spread across 10 days. Humidity levels are slightly higher in December at 84%, compared to 82% in November, indicating a wetter and cooler month overall. For more detailed information, you can check Myrtle Beach weather in November.

Compare Myrtle Beach's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Myrtle Beach

As December rolls into Myrtle Beach, visitors can expect a noticeable shift in weather compared to the warmer months. While temperatures remain mild, peaking around a comfortable 24°C, the average coolness at 11°C brings a refreshing chill to the air. Nights can dip down to a crisp 25°F, making it essential to pack layers for those evening strolls. Precipitation is more frequent this month, with about nine wet days contributing to a total rainfall of 130 mm. With an humidity level soaring at 84%, the coastal air feels particularly brisk. Despite the cooler temperatures and increased rain, December still offers a unique charm to the beachside experience, perfect for those seeking a quieter escape. For more insights on seasonal weather patterns, check out Myrtle Beach Climate.