Myrtle Beach, December 21, 2025
Myrtle Beach is enjoying a mild winter day with sunshine and a few clouds, reaching temperatures between 62°F to 64°F. This pleasant weather contrasts the earlier dense fog advisories affecting the region. As evening approaches, skies will clear and temperatures will drop to around 40°F. Light winds and moderate humidity add to the comfortable atmosphere, making it an ideal day for outdoor activities. However, residents should be aware of broader winter outlooks influenced by La Niña, which may lead to drier conditions in the coming months.
Myrtle Beach, South Carolina
A Gentle Winter Day Graces Coastal Carolina Amidst Regional Fog Advisories
Myrtle Beach is experiencing a day of serene winter weather, as Sunday, December 21, 2025, unfolds with a mild forecast. The daytime brings sunshine and a few clouds, offering a pleasant backdrop to daily activities. The temperature is expected to reach a comfortable high of 62°F to 64°F, a notable warmth for late December. This agreeable weather contrasts with earlier dense fog advisories that affected the Myrtle Beach area and other parts of the Grand Strand during the morning hours, which have since dissipated.
Evening Brings Clear Skies and Cooler Air
As the day progresses into evening, Myrtle Beach will transition to mostly clear skies. The night air is predicted to cool, with temperatures falling to a low near 40°F. This shift from day to night ushers in the crispness characteristic of winter evenings, yet remains within a gentle range, suitable for quiet contemplation under the expanding night sky. The conditions offer a clear view of the celestial expanse without the hindrance of widespread cloud cover.
A Whisper of Winds and Measured Humidity
The day’s tranquility is further characterized by subtle atmospheric movements. Throughout the day, winds are generally light, creating a comfortable environment. Earlier forecasts indicated winds from the north-northwest at 5 to 10 miles per hour during the day. As night falls, winds are anticipated to shift direction slightly, coming from the north-northeast at 10 to 15 miles per hour. The humidity for the area is noted around 59% to 81%, contributing to the overall pleasant air quality. These elements, though often subtle, play a role in shaping the perceptible comfort of the coastal atmosphere.
Regional Context: The Broader Coastal Carolinas
While Myrtle Beach enjoys a mild Sunday, the broader Coastal Carolinas region has been experiencing a variety of atmospheric conditions. Earlier in the morning, a dense fog advisory was in effect for areas including Inland Georgetown, Coastal Georgetown, Conway, and Williamsburg County, in addition to Myrtle Beach. This advisory, issued by the National Weather Service, warned of reduced visibility, at times approaching zero, for motorists, though it was expected to dissipate by mid-morning. Such advisories underscore the dynamic nature of coastal weather, where conditions can change rapidly and impact daily routines.
Winter Outlook and Meteorological Influences
Looking beyond the immediate forecast, the winter season of 2025-2026 for the Southeastern North Carolina and Northeastern South Carolina regions is influenced by larger meteorological phenomena. For the fourth time in six years, La Niña is expected to play a role, potentially leading to below-normal rainfall across the Carolinas. This phenomenon, characterized by the cooling of ocean water in the tropical east Pacific, often increases the potential for drier conditions in the region during winter months. While the current day in Myrtle Beach is pleasant, the broader winter outlook suggests a need for awareness regarding potential precipitation deficits and expanding drought across North and South Carolina. Temperatures, however, do not show an especially large difference between La Niña, El Niño, and ENSO-neutral winters, implying that while precipitation may be lower, significant deviations in average seasonal temperatures are less certain.
The Human Measure of a Mild December Day
For the human experience, a day such as this in late December offers a gentle respite from the usual expectations of winter’s chill. It allows for a continuation of outdoor life with ease, inviting residents and visitors to engage with the natural beauty of the coast. The absence of harsh conditions permits leisurely walks along the shore or quiet moments spent outdoors, unburdened by severe cold. Such days, while perhaps not dramatic, carry a quiet significance, highlighting the subtle rhythms of the seasons and their capacity to shape our collective and individual experiences. They stand as a testament to the quiet continuity of life, unfolding under a sky that, for this day, offers a generous warmth and clear perspective, allowing for reflection on the simple, enduring gifts of nature in its gentle moods. The fleeting nature of such agreeable weather in late December also reminds one of the larger, unpredictable forces that govern our world, encouraging both present enjoyment and a quiet reverence for the meteorological dance that constantly reshapes our environment.
Frequently Asked Questions (FAQ)
- What is the weather forecast for Myrtle Beach today, December 21, 2025?
- The weather forecast for Myrtle Beach today, December 21, 2025, includes sunshine and a few clouds with a high of 62°F to 64°F.
- What are the expected weather conditions for tonight in Myrtle Beach?
- Tonight in Myrtle Beach, the skies are expected to be mostly clear with a low near 40°F.
- What are the wind conditions expected in Myrtle Beach today?
- During the day in Myrtle Beach, winds were from the north-northwest at 5 to 10 miles per hour. Tonight, winds are expected from the north-northeast at 10 to 15 miles per hour.
- What is the humidity level in Myrtle Beach?
- The humidity in Myrtle Beach is noted around 59% to 81%.
- Was there a fog advisory in Myrtle Beach today?
- Yes, a dense fog advisory was in effect for the Myrtle Beach area and other parts of the Grand Strand during the morning hours, which has since dissipated.
- What is the broader winter outlook for the Coastal Carolinas?
- The winter season of 2025-2026 for the Southeastern North Carolina and Northeastern South Carolina regions is influenced by La Niña, potentially leading to below-normal rainfall and expanding drought.
Key Weather Features for Myrtle Beach, December 21, 2025
| Feature | Daytime Conditions (December 21) | Nighttime Conditions (December 21) |
|---|---|---|
| Sky | Sunshine and a few clouds | Mostly clear skies |
| High/Low Temperature | High: 62°F to 64°F | Low: 40°F |
| Wind Speed & Direction | NNW at 5 to 10 mph | NNE at 10 to 15 mph |
| Humidity | 59% to 81% | |
| Morning Advisory | Dense fog advisory (since dissipated) | |
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Author: STAFF HERE MYRTLE BEACH
The HERE Myrtle Beach Staff Writers are a collaborative team of journalists, editors, and local contributors passionate about delivering accurate, timely information to the Myrtle Beach community. As part of the HEREcity.com Network, which powers over 100 U.S. city sites including HEREcolumbia.com, our staff draws on collective experience in South Carolina journalism to cover everything from business sales and real estate developments to dining deals and community initiatives. Our Expertise and Background Local Roots in Myrtle Beach Our team includes lifelong Myrtle Beach residents and SC natives with deep knowledge of the area’s history, economy, and culture. We’ve covered key events like the recent developments along the Grand Strand, Myrtle Beach’s tourism and hospitality industry, and growth in local education sectors (e.g., Coastal Carolina University programs). Collective Experience With over 50 combined years in journalism, our staff has backgrounds in print, digital media, and community reporting. We prioritize fact-based stories, drawing from sources like the Myrtle Beach Area Chamber of Commerce, city government records, and on-the-ground interviews. Commitment to Quality Every article is a group effort, involving research, editing, and verification to ensure reliability. We adhere to journalistic standards, citing credible sources and updating content as new details emerge.
