Last updated: February 24, 2025
In September, North Myrtle Beach offers a delightful blend of warm temperatures and coastal charm. With maximum highs reaching 32°C (90°F) and an average of 25°C (78°F), the weather invites outdoor activities and beach fun. However, as the month progresses, expect some refreshing breaks from the heat, with minimum temperatures dropping to 14°C (57°F). Rainfall is a notable feature, with 187 mm (7.4 in) spread across 12 days, enhancing the lush landscapes with invigorating humidity levels around 81%. Whether basking in the sun or enjoying the occasional shower, September is a vibrant time to experience the beauty of North Myrtle Beach.
In North Myrtle Beach, September ushers in a delightful transitional warmth, where temperatures typically range from a minimum of 14°C (57°F) to an average of 25°C (78°F), peaking at a sizzling 32°C (90°F). This marks a shift from the sweltering summer months, yet the warmth lingers, offering beachgoers and outdoor enthusiasts the perfect balance of sun and comfort. As the month progresses, you may notice subtle hints of autumn, particularly in the cooler mornings and evenings, making it a popular time for visitors seeking less crowded sands and mild weather. Don't miss out on the vibrant sunset vistas that characterize this delightful season!
In September, North Myrtle Beach experiences a significant amount of rainfall, accumulating 187 mm (7.4 in) over the month, making it the second wettest month of the year, just behind August. Notably, rainfall occurs over about 12 days, striking a balance between sunny spells and showers. This pattern highlights the transition from the hot summer months, where July and August deliver the most precipitation, to the drier fall period ahead. As summer storms begin to wane, September often features lingering tropical influences, underscoring the region's unpredictable weather as it gracefully shifts toward autumn.
In September, North Myrtle Beach experiences a humidity level of 81%, maintaining the trend of relatively high moisture that characterizes the summer months. This slight dip from the summer's peak levels in July and August suggests a gradual transition toward the drier conditions of fall. Humidity remains consistent throughout the year, with a notable range from 78% in the spring and early fall to a humid 84% in December. As September ushers in the change of seasons, visitors can expect a warm, sticky atmosphere, making it a real taste of late summer's embrace before the cooler, crisp air sets in for October.
As summer fades into September, North Myrtle Beach experiences a slight dip in the UV Index, falling to 9, categorized as very high. This decrease from the peak summer months, where the UV Index soared to 11, signals a subtle yet important shift for sun seekers. With a burn time of just 15 minutes, it's essential to remain vigilant about sun protection, as UV radiation levels remain significant. Looking ahead, October offers little relief with an index of 8, reminding beachgoers that the sun's rays can still be potent even as temperatures cool. For more detailed insights on UV levels throughout the year, check out the North Myrtle Beach UV Index.
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September in North Myrtle Beach showcases a delightful transition from the peak summer sun, boasting 298 hours of sunshine. This month stands as a charming prelude to autumn, still vibrant with warm days while offering slightly more moderate sunlight than the summer's height of 342 hours in July. As the days begin to shorten, it’s evident that sunshine hours gracefully taper off from August’s 320 hours, yet remain generous enough to bask in the lingering warmth. This trend sets the perfect stage for outdoor activities, making September a prime time to enjoy the beach before the crisp autumn air takes over. With an average of nearly 300 hours, this month captures the essence of summer's tail end, ensuring that North Myrtle Beach remains a sunny paradise for locals and visitors alike.
In September, North Myrtle Beach enjoys a 54% chance of sunny weather, making it one of the brighter months of the year. This marks a noticeable increase from the summer months where the likelihood of sunshine dips, with June and August showing lower probabilities at 32% and 37%, respectively. This trend suggests that as summer wanes, so does the cloud cover, leading to more favorable conditions for beachgoers. Following September, the chance of sunny days remains steady into October at 48%, before gradually climbing again in the late fall. Overall, September stands out as a sweet spot for sunshine seekers in this coastal paradise.
September marks a gradual transition in daylight duration for North Myrtle Beach, with 12 hours of daylight, signaling the end of summer and the approach of fall. As daylight peaks in the summer months of June and July with 14 hours, September sees a gentle decrease, with the shorter days hinting at the cooler seasons ahead. This month follows August's 13 hours, showcasing a trend of diminishing daylight that will continue into October, which offers 11 hours. The rhythmic ebb and flow of daylight throughout the year highlights the enchanting cycle of nature in this coastal paradise, inviting visitors to savor the lingering warmth of summer before the days grow shorter.
In North Myrtle Beach, September ushers in a gentle shift in the winds, averaging 3.5 m/s (8 mph), making it a transition period into the fall season. Notably, this month sees a slight increase from August's calmest average of 3.1 m/s (7 mph), reflecting a gradual return to more brisk coastal breezes as summer fades. This trend highlights a seasonal pattern where wind speeds tend to rise again in the fall, echoing a broader cycle seen throughout the year—January through April showcases consistently higher speeds, peaking around 4.7 m/s (11 mph) in the spring months. As such, September’s breezy yet mild winds create an inviting atmosphere, perfect for those seeking a peaceful seaside retreat before the winter chill sets in.
The weather in North Myrtle 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 North Myrtle Beach and find detailed weather information for every month.
September and January showcase strikingly different weather patterns. In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 32°C (90°F), with an average of 25°C (78°F). This month is characterized by high humidity at 81% and significant rainfall, with 187 mm (7.4 in) over 12 days. In contrast, January brings much cooler temperatures, with a minimum of -6°C (22°F) and a maximum of 23°C (73°F), averaging just 10°C (50°F). Precipitation is also lower in January at 71 mm (2.8 in), occurring over 8 days, while humidity remains slightly elevated at 83%. For more insights into January's climate, check out North Myrtle Beach weather in January.
September and February present quite contrasting weather conditions. In September, temperatures range from a mild 14°C (57°F) at night to a warm average of 25°C (78°F), peaking at 32°C (90°F) during the day. The month experiences significant rainfall, with about 187 mm (7.4 in) of precipitation spread over 12 days, contributing to a high humidity level of 81%. In contrast, February offers much cooler temperatures, with nighttime lows dipping to -1°C (30°F) and daytime highs averaging 23°C (73°F), resulting in an overall average of 12°C (54°F). Precipitation is lighter at 95 mm (3.8 in) over 10 days, and humidity hovers around 79%. For a more specific look at February weather, you can check out North Myrtle Beach weather in February.
In September, the weather is significantly warmer, with average temperatures reaching up to 25°C (78°F) and maximum highs of 32°C (90°F). The month experiences considerable rainfall, averaging 187 mm (7.4 in) over about 12 days, contributing to a high humidity level of 81%. In contrast, March brings a much cooler climate, with average temperatures around 14°C (57°F) and maximums peaking at 25°C (77°F). Precipitation in March is considerably lower at 70 mm (2.8 in) across about 8 days, and humidity remains relatively stable at 79%. For a more detailed look at the weather patterns in March, check out North Myrtle Beach weather in March.
September and April present contrasting weather patterns. In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 32°C (90°F), with an average of 25°C (78°F), making it significantly warmer than April, where temperatures start at a cool 4°C (39°F) and peak at 27°C (81°F), averaging 18°C (65°F). Precipitation also differs notably; September sees 187 mm (7.4 in) over about 12 days, while April has just 92 mm (3.6 in) spread across 8 days, resulting in less rainfall and slightly reduced humidity in April at 78% compared to September's 81%. For more details, you can check North Myrtle Beach weather in April.
In comparing the weather of September and May, you'll notice some distinct differences. September has a wider temperature range, with a minimum of 14°C (57°F) and a maximum of 32°C (90°F), while May features a slightly cooler minimum of 10°C (51°F) and a slightly higher maximum of 33°C (93°F). Despite the warmer average temperature in May (22°C or 73°F) compared to September (25°C or 78°F), September experiences higher humidity at 81% compared to May's 78%. Additionally, September is wetter, recording 187 mm (7.4 in) of precipitation over 12 days, whereas May sees less rainfall at 122 mm (4.8 in) over only 9 days. For more detailed information, you can check North Myrtle Beach weather in May.
In comparing the weather in September and June, both months showcase similar average temperatures, with a minimum of around 14-15°C (57-59°F), an average of 25°C (78°F), and a maximum reaching up to 32°C (90°F). However, September experiences higher precipitation, totaling 187 mm (7.4 in) over 12 days, compared to June’s 139 mm (5.5 in) spread over 15 days. Humidity levels are slightly higher in September at 81%, while June maintains a more comfortable level at 78%. For more details on the June weather, you can check out North Myrtle Beach weather in June.
When comparing the weather in September and July, we see notable differences and similarities. September features a broader temperature range with minimums around 14°C (57°F) and average highs of 32°C (90°F), resulting in an average temperature of 25°C (78°F). In contrast, July has higher minimum temperatures starting at 21°C (70°F) and a slightly lower average of 27°C (81°F). Both months experience high humidity levels, with September at 81% and July at 82%. Precipitation is more frequent in September, with 187 mm (7.4 in) over 12 days compared to July's 162 mm (6.4 in) over 16 days. For those looking to explore the appealing weather of July, more details can be found here: North Myrtle Beach weather in July.
In comparing the weather between September and August, both months experience warm temperatures, but September begins to cool slightly. September has a minimum temperature of 14°C (57°F), with an average of 25°C (78°F) and a maximum reaching 32°C (90°F). Conversely, August is warmer, featuring a minimum of 20°C (68°F), an average of 27°C (81°F), and the same maximum of 32°C (90°F). Both months witness high humidity levels at 81%, but September sees increased precipitation, totaling 187 mm (7.4 in) over 12 days, whereas August experiences 197 mm (7.8 in) over 21 days. For more details on weather patterns specific to August, visit North Myrtle Beach weather in August.
September and October experience notable shifts in weather patterns. In September, the temperatures are warmer, ranging from a minimum of 14°C (57°F) to a maximum of 32°C (90°F), with an average of 25°C (78°F). This month also sees higher precipitation levels, totaling 187 mm (7.4 in) over 12 days and maintaining a humidity level of 81%. In contrast, October brings cooler temperatures with a minimum of 6°C (43°F) and an average of 22°C (71°F), peaking at 31°C (88°F). Precipitation decreases significantly to 62 mm (2.4 in) over 9 days, and humidity slightly drops to 78%. You can find more detailed information on North Myrtle Beach weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a minimum of 14°C (57°F) to a high of 32°C (90°F), with an average of 25°C (78°F). The month sees significant rainfall, totaling 187 mm (7.4 in) over about 12 days, with humidity lingering around 81%. In contrast, November experiences much cooler weather, with minimum temperatures dropping to 1°C (34°F) and an average of 15°C (59°F), peaking at 26°C (80°F). Rainfall decreases to 93 mm (3.6 in) spread over 9 days, and humidity remains steady at 82%. This transition showcases the shift from the warm, humid late summer to the much cooler and drier autumn. For more details, visit North Myrtle Beach weather in November.
In September, the weather is warm and humid, with temperatures ranging from a pleasant 14°C (57°F) at night to a sweltering 32°C (90°F) during the day, accompanied by significant rainfall of 187 mm (7.4 in) over about 12 days. In contrast, December brings much cooler conditions, where temperatures drop to a minimum of -2°C (30°F) and ascend to a maximum of 23°C (73°F), with less rainfall totaling 135 mm (5.3 in) over 10 days. While September is characterized by high humidity levels averaging 81%, December has a slightly higher humidity of 84%, contributing to a crisp yet somewhat damp atmosphere. For a closer look at what to expect during the holiday season, visit North Myrtle Beach weather in December.
As summer gracefully transitions into fall, September in North Myrtle Beach offers a unique blend of warm temperatures and increased humidity, making it a distinctive month compared to others in the year. While still basking in warmth, with highs around 32°C, the shifting weather brings a notable uptick in rainfall, contributing to a lush, vibrant landscape. Unlike the drier months of summer, visitors can expect frequent, albeit brief, showers, punctuating the sunny days. Despite the precipitation, the mild evenings invite outdoor activities, making September an appealing time for those who enjoy a less-crowded beach experience. For a deeper dive into the seasonal changes, explore the North Myrtle Beach Climate.