Last updated: February 24, 2025
August in Hilton Head, United States, brings warm weather ideal for beachgoers and outdoor enthusiasts. With maximum temperatures reaching 34°C (94°F) and an average of 27°C (82°F), visitors can expect plenty of sunshine. However, the minimum temperature of 22°C (73°F) ensures comfortable evenings. This month also sees significant rainfall, with 180 mm (7.1 in) of precipitation spread over 22 days, contributing to a humid atmosphere averaging 81%. Despite the rain, the lush landscape and vibrant local flora thrive, making Hilton Head a beautiful, albeit rainy, summer destination.
In August, Hilton Head basks in the warmth of summer, with temperatures showcasing a delightful range. The minimum temperature hovers around a comfortable 22°C (73°F), while the average reaches a pleasant 27°C (82°F). The island's peak summer vibes are reflected in the maximum temperature, which can soar up to 34°C (94°F). This warm trend is consistent with the preceding months, as July also experiences similarly high readings, reinforcing Hilton Head's reputation as a prime summer getaway. As the summer progresses, the balmy temperatures invite beachgoers and outdoor enthusiasts to soak in the sun, making August an ideal month for relaxation and adventure by the ocean.
August in Hilton Head marks the apex of the summer rainfall season, with precipitation reaching 180 mm (7.1 in), the highest monthly total of the year. This surge in rainfall is accompanied by 22 rainy days, reflecting a trend of increased moisture as summer wanes. Compared to the previous months, August experiences a notable jump from 156 mm (6.1 in) in July, highlighting a pattern where late summer brings persistent showers. This consistency in wet weather can be attributed to tropical influences prevalent during this time. Subsequently, September sees a decline to 127 mm (5.0 in), yet still maintains a significant volume, indicating the lingering effects of summer storms. Overall, August's combination of ample rainfall and frequent showers positions it as a transitional month, paving the way for the upcoming autumn.
August in Hilton Head marks a notable pattern in humidity levels, featuring an average of 81%. This month aligns closely with the slightly more humid summer preceding it, where July holds steady at 80%. As the warm season transitions towards autumn, humidity levels dip slightly in September to 83%, suggesting a gradual shift in the air as temperatures begin to moderate. Throughout the year, the highest humidity peaks occur in the winter months, with January at 86% and December at 87%. Conversely, the late spring and early summer months, particularly May and June, present a more pleasant 75% average, highlighting the blend of comfort and moisture that characterizes the coastal environment of Hilton Head. Overall, the humidity trend in August reinforces the warm, tropical feel of this popular vacation destination.
In August, Hilton Head experiences an extreme UV Index of 11, maintaining the high standards set by the previous couple of months. With a burn time of just 10 minutes, sun safety is paramount during this peak summer month. The trend from May through August highlights a consistent escalation in UV exposure, suggesting that outdoor enthusiasts should take extra precautions, such as wearing protective clothing and applying sunscreen generously. As summer transitions into fall in the subsequent months, UV levels will steadily decrease, but for now, vigilance is key. For more detailed information on UV levels, explore Hilton Head UV Index.
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August in Hilton Head boasts a generous 318 hours of sunshine, making it one of the sunniest months of the year. This vibrant summer month follows a peak of 347 hours in July, showcasing a slight yet pleasant decline in daylight as the summer season transitions toward fall. The trend of abundant sunlight really shines from April through August, where the hours steadily climb from 309 in April to 338 in May and peak in July. Even as the days shorten in September, with 304 hours, Hilton Head remains a warm and inviting destination for beachgoers and outdoor enthusiasts alike. The gradual ebb in hours doesn’t dampen the sunny disposition of this coastal paradise, where each month brings its own unique charm and warmth.
While August in Hilton Head, United States, brings the heat of summer, it unfortunately also comes with a lower likelihood of sunny weather, with only a 27% chance of clear skies—a stark contrast to the higher percentages seen in the months preceding it. This trend of diminished sunshine continues from July, which experiences a similarly low probability of sunny days, reflecting a pattern of increased cloud cover and humidity typical of the late summer. As the season transitions into September, the chance of sun increases again, climbing to 51%. This fluctuation highlights how August serves as a bridging point, as residents and visitors alike look forward to the clearer skies of fall after enduring the sultriness of summer.
In August, Hilton Head enjoys approximately 13 hours of daylight, continuing the trend of longer days that peaks in June with an impressive 14 hours. As summer progresses, daylight hours gradually decline from July's 13 hours, signaling the transition toward autumn. This fluctuation reflects the island's distinct seasonal rhythms, where the length of daylight extends from just 10 hours in January to a summer high. The steady pattern of diminishing daylight as the year advances creates an inviting atmosphere for summer activities and relaxation, making August a perfect month to soak up the lingering sunshine before the days begin to shorten further.
In August, Hilton Head experiences a notable dip in wind speed, averaging just 3.4 m/s (8 mph), which is the year's lowest, following a gradual decline from the breezy heights of 4.4 m/s in May. This calmness in August reflects a broader summer trend, as the island transitions from the mild winds of earlier months to softer breezes, creating a relaxed atmosphere perfect for leisurely beach days. After July's peak at 3.6 m/s (8 mph), the gentle winds in August contribute to a serene coastal experience, inviting visitors to appreciate the tranquil beauty of the area. As summer gives way to autumn, the winds begin to pick up again in September, hinting at seasonal changes ahead, with an average of 3.2 m/s.
The weather in Hilton Head changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Hilton Head and find detailed weather information for every month.
The weather in August and January presents a striking contrast. August features warmer temperatures, with lows around 22°C (73°F) and highs peaking at 34°C (94°F), accompanied by significant rainfall totaling 180 mm (7.1 in) over approximately 22 days. In contrast, January experiences much cooler temperatures, ranging from a minimum of -5°C (23°F) to a maximum of 24°C (75°F), with considerably less precipitation at 61 mm (2.4 in) over only 7 days. Additionally, while August maintains a high humidity level of 81%, January’s humidity is slightly higher at 86%. For more detailed weather information, you can check Hilton Head weather in January.
August and February offer contrasting weather experiences. August is characterized by warm temperatures, with an average of 27°C (82°F) and highs reaching up to 34°C (94°F), combined with significant precipitation of 180 mm (7.1 in) spread over 22 days, resulting in high humidity levels of 81%. In contrast, February experiences much cooler temperatures, with an average of 14°C (57°F) and a maximum of 25°C (77°F). This month sees considerably less rainfall at 80 mm (3.1 in) over just 11 days, while maintaining the same humidity level of 81%. For a more detailed look at the February climate, you can visit Hilton Head weather in February.
The weather in August is notably warmer and more humid than in March, with average temperatures ranging from a minimum of 22°C (73°F) to a maximum of 34°C (94°F). In contrast, March experiences a much cooler climate, with temperatures ranging from 1°C (34°F) to a maximum of 27°C (81°F) and an average of 16°C (61°F). Additionally, August sees significantly higher precipitation, with 180 mm (7.1 in) over approximately 22 days, compared to March's 68 mm (2.7 in) over just 6 days. Despite both months having a humidity level of 81%, the overall comfort level in March is typically much more pleasant for outdoor activities. For more detailed information, check out Hilton Head weather in March.
When comparing the weather in August and April, notable differences emerge. August is marked by significantly warmer temperatures, with a minimum of 22°C (73°F) and an average of 27°C (82°F), peaking at a maximum of 34°C (94°F). In contrast, April experiences much cooler weather, with temperatures ranging from a minimum of 6°C (43°F) to an average of 19°C (67°F), reaching up to a maximum of 30°C (87°F). Precipitation levels also differ, as August sees 180 mm (7.1 in) of rain over 22 days, while April has a drier spell with just 85 mm (3.4 in) across 8 days. Humidity remains relatively high in both months, with August at 81% and April slightly lower at 79%. For more detailed insights, check out Hilton Head weather in April.
When comparing the weather in August and May, substantial differences can be observed. August tends to be much warmer, with an average temperature of 27°C (82°F) compared to May's cooler average of 23°C (74°F). While both months can reach a maximum temperature of 34°C (94°F), August features notably higher humidity at 81%, compared to May's more comfortable 75%. Additionally, August experiences significantly more rainfall, with 180 mm (7.1 in) over 22 days, while May sees only 89 mm (3.5 in) across 10 days. For more detailed insights, check out Hilton Head weather in May.
In August, the weather is typically warmer with minimum temperatures of 22°C (73°F) compared to June’s 18°C (64°F). Both months can reach a maximum of 34°C (93°F to 94°F), but August has a higher average temperature of 27°C (82°F) versus June's 26°C (79°F). Additionally, August sees significantly more rainfall, with 180 mm (7.1 inches) over 22 days, whereas June experiences 122 mm (4.8 inches) over 18 days. Humidity levels are also higher in August at 81%, compared to June’s 75%. For a more detailed look at June weather, you can visit Hilton Head weather in June.
In comparing the weather between July and August, both months exhibit warm temperatures, but August tends to be slightly cooler on average. July features a minimum temperature of 23°C (73°F) and an average of 28°C (82°F), reaching a maximum of 35°C (95°F). In contrast, August has a minimum temperature of 22°C (73°F) and an average of 27°C (82°F), with a maximum of 34°C (94°F). Precipitation levels are higher in August, totaling 180 mm (7.1 in) over 22 days compared to July's 156 mm (6.1 in) across 19 days. Humidity is also marginally higher in August at 81%, compared to 80% in July. For a more detailed overview of July's weather, you can visit Hilton Head weather in July.
In comparing August and September weather, August tends to be noticeably warmer, with average temperatures around 27°C (82°F) and a maximum reaching up to 34°C (94°F). It also experiences higher precipitation, averaging 180 mm (7.1 in) over 22 days, along with humidity levels of 81%. In contrast, September sees a slight dip in temperatures, with a minimum of 16°C (61°F) and an average of 26°C (79°F), while still reaching a maximum of 34°C (93°F). Precipitation decreases to 127 mm (5.0 in) across 15 days, accompanied by slightly higher humidity at 83%. For a more detailed look at September's climate, you can check out Hilton Head weather in September.
August and October offer remarkably different weather patterns. In August, temperatures are significantly warmer, with minimums around 22°C (73°F) and maxing out at 34°C (94°F). This month also sees high humidity levels at 81% and considerable rainfall, averaging 180 mm over 22 days. In contrast, October experiences a more temperate climate, with a lower minimum temperature of 6°C (42°F) while still reaching a comfortable average of 23°C (73°F) during the day. Rainfall is reduced to 88 mm over just 11 days, and humidity falls slightly to 78%. For a detailed look at the weather specifics in October, check out Hilton Head weather in October.
In August, the weather is characterized by high temperatures, with a minimum of 22°C (73°F), an average of 27°C (82°F), and a maximum reaching 34°C (94°F). The month experiences significant rainfall, totaling 180 mm (7.1 in) over 22 days, combined with a high humidity of 81%. In contrast, November brings much cooler conditions, with temperatures ranging from a minimum of 1°C (35°F) to an average of 16°C (61°F) and a maximum of 28°C (82°F). Precipitation decreases to 90 mm (3.5 in) over just 8 days, while humidity slightly increases to 85%. For more detailed insights, you can check Hilton Head weather in November.
August and December present stark contrasts in weather conditions. In August, temperatures are notably warm, with a minimum of 22°C (73°F) and an average of 27°C (82°F), peaking at a hot 34°C (94°F). This month also sees significant precipitation, with 180 mm (7.1 in) falling over 22 days, contributing to an 81% humidity level. In contrast, December experiences much cooler temperatures, ranging from a minimum of -1°C (30°F) to an average of 13°C (55°F), with a maximum temperature of 23°C (73°F). Precipitation decreases to 125 mm (4.9 in) over just 10 days, and humidity rises slightly to 87%. For more details on seasonal weather in December, visit Hilton Head weather in December.
August in Hilton Head brings a distinct warmth, with higher temperatures and significant humidity that set it apart from other months. Visitors can expect sweltering days, where the heat peaks, coupled with an increased chance of precipitation as rain falls on many days of the month. This mix of heat and humidity creates a uniquely tropical atmosphere, perfect for those who enjoy the summer vibe. To learn more about the overall climate patterns of this beautiful coastal destination, check out Hilton Head Climate.