Last updated: February 24, 2025
Folly Beach in September offers a vibrant mix of summer warmth and coastal charm. With maximum temperatures soaring to 35°C (94°F) and an average of 26°C (78°F), the days invite outdoor adventures under the sun. However, the evenings cool down to a minimum of 14°C (57°F), providing a refreshing break from the heat. While September sees a generous precipitation total of 176 mm (6.9 in) over approximately 14 days, the humidity hovers at a sultry 83%, adding a tropical feel to the seaside atmosphere. Embrace the unique blend of sunshine and showers that make this month a spectacular time to visit Folly Beach!
In September, Folly Beach begins to transition from the sweltering summer months, making way for milder autumn temperatures. With minimums averaging around 14°C (57°F) and daily highs peaking at 35°C (94°F), visitors can still enjoy warm beach days, but the humidity is often more bearable. The average temperature settles comfortably at 26°C (78°F), allowing for a pleasant mix of sunny afternoons and cooler evenings. This month marks a subtle shift, as the warmth gradually recedes, signaling both the end of the peak tourist season and the onset of beautiful fall scenery, perfect for those looking to soak up the last rays of summer before autumn fully sets in.
In September, Folly Beach experiences significant rainfall, tallying 176 mm (6.9 in) over approximately 14 days—a continuation of the summer's wet trend. Following the peak of July and August, which saw the highest precipitation levels of the year, September offers a transition into slightly drier conditions, though it's still relatively moist compared to earlier months. This month’s rainfall contributes to overall lush landscapes, while the increased humidity can hint at the remnants of summer heat. As the fall season approaches, residents and visitors can expect a mix of sunny days interspersed with refreshing showers, setting a picturesque backdrop for beachside activities.
In September, humidity in Folly Beach hovers around a moderate 83%, marking a slight increase from the preceding months of summer. This uptick is reflective of the shift towards the fall season, where air moisture levels begin to stabilize after the high summer readings of July and August, which sit at 80% and 81% respectively. As the year progresses into October, humidity levels start a gradual decline, dropping to 78%—a trend that highlights the transition from the sultry summer months to the more comfortable autumn climate. Overall, September serves as a bridge, maintaining warmth while signaling the impending cool down.
In September, Folly Beach experiences a UV Index of 9, categorizing it within the very high exposure range, with a burn time of just 15 minutes. This marks a slight decline from the peak summer months, where the UV Index stays at an extreme level of 11 during June, July, and August. However, the sun remains potent in September, so precautions are essential, especially as the days start to shorten. As we transition into fall, the UV Index will gradually decrease, but it's crucial to stay vigilant about sun safety throughout the month. For more detailed information on sun exposure throughout the year, visit Folly Beach UV Index.
UV Risk Categories
As summer transitions into autumn in Folly Beach, September brings a delightful blend of warmth and sunshine, boasting 300 hours of radiant daylight. This month stands out as a golden opportunity to relish the lingering summer vibes, just a shade below the peak of 341 hours in July. Following a pattern of gradual daylight reduction, September strikes a perfect balance, offering ample sunshine for beach strolls and sunset views while hinting at the cozy charm of the fall season. As the days shorten, visitors and locals alike can still enjoy a vibrant atmosphere, leaving them with cherished memories of sun-soaked afternoons and picturesque evenings by the shore.
As September rolls into Folly Beach, the likelihood of enjoying sunny weather rises significantly, boasting a 51% chance of clear skies. This marks a notable improvement from the summer months, where the probability of sunshine dwindles, with July and August seeing only 34% and 30%, respectively. The transition into fall brings a refreshing change, with sunny days likely to outnumber the cloudier ones. Following September, the odds remain relatively stable into October at 50%, but there’s a marked increase in sunshine as the year ends, with November seeing a robust 62% chance. Thus, for those looking to soak in the late summer sun before autumn fully arrives, September presents a promising opportunity to enjoy Folly Beach's beautiful coastal charm.
As summer gracefully transitions into autumn, September in Folly Beach showcases a delightful 12 hours of daylight. Following the peak of 14 hours in June and July, daylight begins to wane slightly, hinting at the approaching cooler months. This subtle decline continues from August’s 13 hours, marking a shift in both the season and the ambiance of beach life. The steady progression from longer days in spring and summer to the shorter days of fall invites both residents and visitors to savor those sunlit hours, making September a perfect time for outdoor activities under the golden rays. The rhythm of daylight serves as a gentle reminder of nature's cyclical beauty, as the days gradually shorten toward the cozy months ahead.
As summer fades into fall, September in Folly Beach, United States, brings a subtle shift in the breeze. With average wind speeds dropping to 2.9 m/s (6 mph), this month marks one of the year's calmest periods, following a gradual decline from the higher speeds earlier in the season. The gentle winds of September offer a serene backdrop for beachgoers, contrasting sharply with the earlier months where more robust gusts prevailed. This slight lull hints at the changing seasons, setting the stage for a more refreshing October, when the winds pick up again to 3.2 m/s (7 mph). September’s breezy tranquility invites moments of reflection and relaxation, making it a delightful time to enjoy the coastal charm of Folly Beach.
The weather in Folly Beach changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Folly Beach and find detailed weather information for every month.
September and January present strikingly different weather patterns. In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 35°C (94°F), with an average of 26°C (78°F). This month also experiences higher precipitation, recording 176 mm (6.9 in) over approximately 14 days and maintaining a humidity level of 83%. In contrast, January is notably colder, with temperatures dropping to a minimum of -13°C (9°F) and peaking at 26°C (79°F), averaging around 11°C (52°F). The winter month sees significantly less precipitation, at 59 mm (2.3 in) over just 7 days, while humidity remains relatively high at 86%. For more details on the weather in January, visit Folly Beach weather in January.
September and February present striking contrasts in weather. In September, temperatures can range from a mild 14°C (57°F) to a scorching 35°C (94°F), with an average temperature of 26°C (78°F). The month is characterized by high humidity levels at 83% and significant rainfall of 176 mm (6.9 in) over 14 days. In contrast, February experiences much cooler temperatures, with a minimum of -2°C (29°F) and an average of 14°C (57°F), peaking at 26°C (79°F). With less precipitation at 78 mm (3.1 in) and around 9 rainy days, February also has slightly lower humidity at 81%. For more details, you can explore Folly Beach weather in February.
September weather is characterized by warm temperatures, with a minimum of 14°C (57°F) and an average high reaching up to 35°C (94°F). In contrast, March experiences cooler conditions, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 28°C (82°F). Additionally, September sees significantly more rainfall, with 176 mm (6.9 in) over 14 days, compared to just 60 mm (2.4 in) across 6 days in March. Both months feature high humidity levels, but September tends to be a bit more humid at 83%, while March sits closely at 81%. For more detailed weather insights, visit Folly Beach weather in March.
When comparing the weather in September and April, it’s clear that September tends to be warmer and more humid. In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 35°C (94°F), with an average of 26°C (78°F), while April offers cooler conditions with temperatures ranging from 4°C (39°F) to 31°C (89°F) and an average of 19°C (66°F). Additionally, September experiences more precipitation, totaling 176 mm (6.9 in) over 14 days, compared to April's 101 mm (4.0 in) over just 8 days. Despite the slight difference in humidity, with September at 83% and April at 79%, both months bring varying weather conditions worth noting. For a closer look at the climate specifics, check out Folly Beach weather in April.
When comparing the weather of September and May, several notable differences emerge. September experiences warmer temperatures, with an average of 26°C (78°F) and a maximum of 35°C (94°F), while May boasts slightly cooler averages at 23°C (74°F) and can reach up to 37°C (98°F). In terms of precipitation, September is significantly wetter, with 176 mm (6.9 in) over 14 days compared to May's 87 mm (3.4 in) across just 9 days. Additionally, September has a higher humidity level at 83%, while May remains relatively drier at 75%. For a more detailed look at May conditions specifically, check out Folly Beach weather in May.
In comparing the weather of September and June, both months boast a similar average temperature of around 26°C (79°F), with maximum temperatures peaking at 35°C (95°F). However, September tends to be slightly cooler at night, with a minimum temperature of 14°C (57°F) compared to June's 16°C (61°F). Precipitation levels are notably higher in September, with 176 mm (6.9 in) spread over 14 days, whereas June experiences 150 mm (5.9 in) over 19 days. Additionally, the humidity is higher in September at 83%, compared to June's humidity level of 75%. For a closer look at the specific weather patterns in June, you can check Folly Beach weather in June.
When comparing the weather in September to that of July, notable differences emerge. September typically experiences a slightly cooler range with minimum temperatures around 14°C (57°F), averaging 26°C (78°F), and maximums reaching 35°C (94°F). In contrast, July has a warmer minimum of 20°C (69°F) and a higher average of 28°C (82°F), with maximums also peaking at 34°C (94°F). Rainfall is relatively high in both months, but September sees about 176 mm (6.9 in) over 14 days, while July has 187 mm (7.4 in) spread over 20 days, indicating a marginally wetter month. Additionally, September's humidity is slightly higher at 83%, compared to July's 80%. For more specific details about July weather at Folly Beach, visit Folly Beach weather in July.
In comparing the weather of September to that of August, we observe a notable shift in temperature and precipitation patterns. September records a minimum temperature of 14°C (57°F), which is significantly cooler than August’s starting point of 21°C (70°F). However, September maintains a similar average temperature of 26°C (78°F) compared to August's 27°C (81°F), while both months reach a maximum temperature of 35°C (95°F). Precipitation is also a factor; September experiences slightly less rain, with 176 mm (6.9 in) over 14 days, compared to August's 183 mm (7.2 in) across 21 days. Despite this, September's humidity levels rise to 83%, surpassing August's 81%. For more detailed weather information, you can refer to Folly Beach weather in August.
September and October present a noticeable shift in weather conditions. In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 35°C (94°F), resulting in an average temperature of 26°C (78°F). The month is characterized by high humidity at 83% and significant rainfall, accumulating 176 mm (6.9 in) over 14 days. By contrast, October experiences cooler temperatures, with minima dropping to 3°C (38°F) and an average of 22°C (72°F), while the maximum reaches 31°C (89°F). Precipitation decreases substantially to 79 mm (3.1 in), spread over just 9 days, and humidity slightly lowers to 78%. This transition signals the end of the hot summer months and the onset of a milder autumn season. For more detailed information, check out Folly Beach weather in October.
September and November present notably different weather characteristics. In September, temperatures are significantly warmer, with a minimum of 14°C (57°F) and an average high of 35°C (94°F), while November sees cooler temperatures, ranging from a minimum of -1°C (31°F) to a maximum of 28°C (84°F). September also experiences higher precipitation levels at 176 mm (6.9 in), falling over approximately 14 days, compared to November's 92 mm (3.6 in) spread over just 8 days. Humidity remains relatively consistent, with September at 83% and November slightly higher at 85%. For more insights on November weather specifics, check out Folly Beach weather in November.
September weather is characterized by warm temperatures, with minimums around 14°C (57°F) and maximums reaching as high as 35°C (94°F). The month experiences significant rainfall, averaging 176 mm (6.9 in) over 14 days, coupled with high humidity at 83%. In contrast, December brings a notable drop in temperature, with minimums plunging to -3°C (28°F) and maximums peaking at 25°C (77°F). Although it is cooler, December still sees considerable humidity at 87%, yet it experiences less precipitation amounting to 127 mm (5.0 in) over only 9 days. For a more detailed outlook, you can check Folly Beach weather in December.
As September rolls in, Folly Beach experiences a unique blend of summer's warmth and the anticipation of fall. The temperatures remain warm with highs reaching around 35°C (94°F) while the humidity hovers at a notable 83%, creating a sticky atmosphere. With an average temperature of about 26°C (78°F), outdoor activities remain enjoyable, although occasional rain showers—averaging 176 mm over 14 days—remind visitors of summer's volatile nature. Unlike the sweltering peak months, September offers a refreshing coastal breeze, making it an ideal time to explore the beach before the crowds thin out. For more in-depth insights, check out Folly Beach Climate.