Last updated: February 24, 2025
Experience the warmth of August on Hilton Head Island, where temperatures soar with a maximum of 34°C (94°F) and maintain a comfortable average of 27°C (82°F). The nights bring a mild relief with lows around 22°C (73°F), perfect for evening strolls by the shore. However, expect a fair share of rain, with approximately 180 mm (7.1 in) of precipitation spread over 22 days, contributing to the lush landscapes. With an 81% humidity level, the air feels rich and tropical, enhancing the island's vibrant summer atmosphere. Whether you're lounging on the beach or exploring the island's natural beauty, August promises a captivating blend of sun and fun, perfect for making unforgettable memories.
In August, Hilton Head Island basks in the warmth of summer, with temperatures averaging a pleasant 27°C (82°F). The highs can reach up to 34°C (94°F), providing ideal beach weather, while the nighttime brings a comfortable minimum of 22°C (73°F). This month carries on the trend of rising temperatures observed since May, making it one of the hottest periods of the year. As the island transitions from the peak summer heat into the cooler September, visitors can soak up the sun and enjoy the vibrant local scene, all set against a backdrop of warm ocean breezes. Whether lounging by the pool or exploring the lush landscape, August in Hilton Head promises a delightful experience steeped in summer's embrace.
In August, Hilton Head Island experiences a notable peak in precipitation, with a substantial 180 mm (7.1 in) of rain falling over 22 days, making it the wettest month of the year. This increase in rainfall follows the crescendo of summer storms that begin in June and intensify through July, when the island sees 156 mm (6.1 in) over 19 days. The trend of rising precipitation from May through August highlights a humid and vibrant tropical climate, perfect for the lush landscapes but challenging for those who prefer drier weather. As summer gives way to fall, the precipitation begins to taper off, with September seeing a drop to 127 mm (5.0 in), offering a respite from the summer deluge.
In August, Hilton Head Island experiences a humidity level of 81%, a trend that remains consistent with the preceding months of July and March, both also hovering around the same mark. Throughout the year, humidity begins its high at 86% in January and gradually reduces to 75% in May and June, before steadily rising again as autumn approaches. This fluctuating pattern highlights that while August maintains a moderate level of moisture in the air, the humidity often peaks again in the fall with 83% noted in September. As residents and visitors enjoy the warmth and coastal breezes of summer, the island's humidity creates a lush, tropical ambiance that defines the region.
August in Hilton Head Island features a consistently extreme UV Index of 11, maintaining the peak levels observed since May. With a burn time of just 10 minutes, this month reinforces the necessity for sun protection as locals and visitors enjoy the sun-soaked beaches. The trend towards higher UV values continues from earlier summer months, emphasizing the importance of vigilance during these sun-rich weeks. As the season begins to transition into fall, you can expect a slight decrease in UV exposure in September, but for now, it’s essential to stay prepared. For more information on how to stay safe under the sun, visit Hilton Head Island UV Index.
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August in Hilton Head Island shines with an impressive 318 hours of sunlight, offering a warm embrace as summer nears its end. This month is part of a thrilling peak in bright days, following July's record high of 347 hours. As the summer sun begins its gradual retreat, August still boasts a radiant glow, ensuring plenty of time to bask on sandy shores or explore the island's natural beauty. The sunshine in August, while slightly dipping from July, remains abundant compared to the earlier months of the year, with April and May showcasing significantly less light at 309 hours and 338 hours, respectively. As the days shorten heading into fall, Hilton Head's summer warmth continues to capture the hearts of visitors and locals alike.
August in Hilton Head Island sees a notably lower chance of sunny weather, with only a 27% likelihood of sun. This trend aligns with the summer months, particularly June and July, which also report similarly low chances of sunshine. Interestingly, as the summer fades into early fall, the likelihood of sunny days begins to climb again, with September showing a 51% chance of clear skies. This suggests that while August might be a bit gloomy compared to neighboring months, visitors can look forward to sunnier conditions just around the corner in September. Overall, the island's weather pattern highlights seasonal fluctuations, promising better beach days after the peak of summer.
In August, Hilton Head Island enjoys approximately 13 hours of daylight, mirroring the length seen in July. This month serves as a transitional point, as the days gradually shorten from the 14 hours experienced in June. The steady daylight allows ample opportunity for outdoor activities, beach outings, and exploration of the island's natural beauty. Following the patterns of preceding months, as summer winds down, daylight will start to decrease, leading into the shorter days of September and beyond. Overall, August embraces a bright, sun-filled atmosphere, perfect for making the most of the lingering summer warmth.
In Hilton Head Island during August, the average wind speed drops to a gentle 3.4 m/s (8 mph), reflecting a notable trend of decreasing winds as summer begins to fade. This decline follows a pattern established through the warmer months, where July experiences a slightly higher average speed of 3.6 m/s (8 mph). While the gusts provide a refreshing respite from the heat, they are among the calmest of the year. The transition into autumn continues with September's even milder winds at 3.2 m/s (7 mph), signaling a shift towards quieter breezes. This gradual reduction in wind not only enhances the serene beach atmosphere but also invites a slower pace for enjoying the island's natural beauty.
The weather in Hilton Head Island 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 Island and find detailed weather information for every month.
The weather in August is characterized by warm temperatures, with a minimum of 22°C (73°F) and an average of 27°C (82°F), peaking at a high of 34°C (94°F). This month experiences significant precipitation of 180 mm (7.1 in) spread over 22 days, resulting in high humidity levels of 81%. In contrast, January presents a much cooler climate, with temperatures ranging from a chilling minimum of -5°C (23°F) to a pleasant average of 11°C (53°F), and a maximum of 24°C (75°F). This winter month sees far less rainfall, at 61 mm (2.4 in) across just 7 days, and slightly higher humidity at 86%. For more detailed information, you can check Hilton Head Island weather in January.
When comparing the weather in August and February, a stark contrast emerges. August boasts significantly warmer temperatures, with a minimum of 22°C (73°F) and an average of 27°C (82°F), peaking at a sweltering 34°C (94°F). In addition, it experiences high humidity at 81% and considerable precipitation, with 180 mm (7.1 in) spread over 22 days. Conversely, February presents a much cooler climate, starting at a minimum of 1°C (33°F) and reaching an average of 14°C (57°F), maxing out at 25°C (77°F). The rainfall in February is notably less, at 80 mm (3.1 in) across 11 days, while the humidity remains consistent at 81%. For a more detailed look at the weather conditions during this month, you can check out Hilton Head Island weather in February.
In comparing the weather between August and March, it is clear that August is significantly warmer and wetter. August features average temperatures ranging from a minimum of 22°C (73°F) to a maximum of 34°C (94°F), with high humidity at 81% and substantial rainfall totaling 180 mm (7.1 in) over 22 days. In stark contrast, March boasts a much cooler climate, with temperatures ranging from a chilly minimum of 1°C (34°F) to a pleasant maximum of 27°C (81°F) and an average of 16°C (61°F). March also experiences significantly less rainfall, with only 68 mm (2.7 in) spread over just 6 days, all while maintaining the same level of humidity at 81%. For further details about the weather in March, you can visit Hilton Head Island weather in March.
August and April present contrasting weather experiences. In August, temperatures are significantly warmer, with minimums around 22°C (73°F) and average highs reaching 34°C (94°F), while April offers a cooler climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 30°C (87°F). Additionally, August is characterized by higher precipitation levels, totaling 180 mm (7.1 in) over 22 days, compared to April's 85 mm (3.4 in) over just 8 days. Humidity remains relatively high in both months, at 81% in August and 79% in April, creating a humid atmosphere throughout the year. For more specific details on April weather, you can visit Hilton Head Island weather in April.
In comparing the weather of August and May, August is characterized by significantly warmer temperatures, with an average of 27°C (82°F) compared to May's 23°C (74°F). While both months can reach temperatures as high as 34°C (94°F), May enjoys cooler minimum temperatures at 12°C (53°F) versus August's 22°C (73°F). Additionally, August experiences much higher precipitation, averaging 180 mm (7.1 in) over 22 days, while May has only 89 mm (3.5 in) over 10 days. The humidity in August is also higher at 81%, compared to May's 75%. For a deeper look into May’s climate, you can check Hilton Head Island weather in May.
In comparing the weather of August and June, it’s clear that both months experience warm temperatures, but August tends to be slightly hotter and more humid. August has a minimum temperature of 22°C (73°F) and an average of 27°C (82°F), compared to June's minimum of 18°C (64°F) and average of 26°C (79°F). While both months can reach a maximum of 34°C (94°F for August and 93°F for June), August brings considerably more rainfall, averaging 180 mm (7.1 in) over 22 days, while June sees 122 mm (4.8 in) over 18 days. Additionally, August has higher humidity levels at 81%, compared to June's 75%. For a deeper look into June's weather specifics, you can visit Hilton Head Island weather in June.
In comparing the weather of August and July, we observe that August is slightly warmer, with average temperatures of 27°C (82°F) compared to July's 28°C (82°F). Both months experience high temperatures, with August peaking at 34°C (94°F) and July reaching 35°C (95°F). However, August sees more precipitation, totaling 180 mm (7.1 in) over 22 days, whereas July experiences 156 mm (6.1 in) across 19 days. Humidity levels are comparable, with August at 81% and July at 80%. For more detailed information, you can check this link: Hilton Head Island weather in July.
August typically sees warmer temperatures, with a minimum of 22°C (73°F) and an average high of 34°C (94°F), while September experiences slightly cooler conditions, dropping to a minimum of 16°C (61°F) but maintaining a similar max temperature of 34°C (93°F). Precipitation levels are higher in August, with 180 mm (7.1 in) over 22 days, compared to September's 127 mm (5.0 in) over 15 days, indicating a trend toward drier conditions as summer transitions into fall. Humidity remains relatively high in both months, with August at 81% and September slightly higher at 83%. For more detailed information on weather patterns, check out Hilton Head Island weather in September.
August weather is characterized by significantly warmer temperatures, with minimums around 22°C (73°F) and maximums reaching up to 34°C (94°F), making it the peak of summer. In contrast, October sees a drop in the minimum temperature to 6°C (42°F) while maintaining a comfortable average of 23°C (73°F) and highs of 31°C (89°F). Precipitation is also notably reduced in October, with only 88 mm (3.5 in) of rain over 11 days compared to August's 180 mm (7.1 in) over 22 days, contributing to a less humid atmosphere of 78%. For more detailed weather patterns, check out Hilton Head Island weather in October.
August and November present stark contrasts in weather conditions. In August, temperatures soar with a minimum of 22°C (73°F) and an average of 27°C (82°F), reaching highs of 34°C (94°F). The month experiences significant rainfall, totaling 180 mm (7.1 in) over 22 days, accompanied by high humidity levels at 81%. Conversely, November brings a much cooler atmosphere, with minimum temperatures dropping to 1°C (35°F) and an average of 16°C (61°F), while the maximum reaches a milder 28°C (82°F). Rainfall is less frequent in November, accumulating only 90 mm (3.5 in) over 8 days, and humidity slightly rises to 85%. For more detailed weather conditions, check out Hilton Head Island weather in November.
August and December present stark contrasts in weather. In August, temperatures soar with a minimum of 22°C (73°F) and can reach up to 34°C (94°F), accompanied by high humidity levels at 81%. This month also sees significant rainfall, averaging 180 mm (7.1 in) over 22 days, contributing to a warm and often muggy atmosphere. In sharp contrast, December offers a much cooler climate, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 23°C (73°F), and an average of 13°C (55°F). Despite higher humidity at 87%, December experiences less rainfall, totaling about 125 mm (4.9 in) over only 10 days. For those interested in more details about the weather during this month, you can visit Hilton Head Island weather in December.
August on Hilton Head Island marks the peak of summer, bringing higher temperatures and increased humidity compared to other months. This time of year features more frequent rainy days, with substantial precipitation that can momentarily cool the air but also adds to the overall muggy feel. Visitors can expect the lush landscapes to be vibrant and alive, yet they should prepare for warm, humid conditions that set this month apart from the milder summer months preceding it. For a detailed look at how August compares to the rest of the year, check out the full Hilton Head Island Climate resource.