Last updated: February 24, 2025
Experience the vibrant May weather in Hilton Head, United States, where temperatures soar with a maximum of 34°C (94°F) and an average of 23°C (74°F), offering an ideal climate for outdoor adventures. As spring transitions into summer, revel in the warmth, but be prepared for occasional showers, with rainfall averaging 89 mm (3.5 in) over 10 days. Humidity remains notably high at 75%, creating a lush, tropical atmosphere that enhances the island's stunning natural beauty. Whether you're lounging on the beach or exploring the scenic landscapes, Hilton Head's May weather promises an unforgettable experience.
In May, Hilton Head experiences a delightful transition into warmer weather, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 34°C (94°F). The average temperature rises to a pleasant 23°C (74°F), marking a notable leap from the cooler months preceding it. This month showcases a clear trend towards summer, as the days grow longer and the warmth becomes more inviting. Visitors can enjoy outdoor activities under the sun, all while basking in the lively atmosphere that May brings to this charming coastal destination. With the temperature steadily climbing, Hilton Head is the perfect spot for those eager to embrace the vibrant onset of summer.
In May, Hilton Head experiences a notable uptick in precipitation, with 89 mm (3.5 in) of rain falling over approximately 10 days. This marks a continuation of the progressive increase in rainfall from the previous months, particularly after April's 85 mm (3.4 in). As spring transitions into summer, the island begins to feel the impact of more frequent showers, setting the stage for the rainier months ahead. June typically sees the peaks of summer precipitation, escalating to 122 mm (4.8 in), but May already hints at this seasonal shift. The combination of warmer temperatures and increased moisture fosters a lush, vibrant landscape, inviting both residents and visitors to enjoy the blossoming beauty of Hilton Head.
As spring transitions into summer, May in Hilton Head sees a notable shift in humidity, dropping to 75%—a pleasant decline from the higher levels of the preceding months. This trend marks a continuation of decreasing humidity that began in April, providing a refreshing respite before the summer heat sets in. With June maintaining this comfortable humidity level, May serves as an ideal time for outdoor activities, allowing residents and visitors to enjoy the beautiful coastal environment with relative ease. While the humidity will gradually rise again in the following months, May offers a sweet spot of comfortable conditions, making it a fantastic time to explore all that Hilton Head has to offer.
As May rolls into Hilton Head, the UV Index skyrockets to 11, placing it in the extreme exposure category and significantly cutting down the time it takes for vulnerable skin to start burning—now just 10 minutes. This dramatic increase follows a trend from previous months, where the UV Index has been steadily rising since January’s moderate rating of 4. The shift from high in February to very high by March and April underscores the need for sun protection during this time of year. As temperatures warm and outdoor activities ramp up, it's crucial to stay informed about UV exposure to enjoy this beautiful destination safely. For more detailed information, visit Hilton Head UV Index.
UV Risk Categories
May is a breathtaking month in Hilton Head, United States, as the region basks in an impressive 338 hours of sunshine—the second-highest total of the year. Following the trend of increasing daylight hours, May marks a significant leap from the 309 hours recorded in April. This delightful surge in sunshine not only enhances outdoor activities but also sets the stage for the summer months ahead. Interestingly, while June continues the trend with 321 hours, it’s the vibrant month of July that claims the title for peak sunshine, boasting 347 hours. This consistent upward trajectory from January’s relatively low 192 hours through to June suggests a seasonal shift that invites both locals and visitors to embrace Hilton Head’s picturesque beaches and outdoor adventures. As the year progresses, residents and tourists alike can expect the sun to shine ever brighter, making each day in May a beautiful opportunity to enjoy the natural splendor of this coastal gem.
May in Hilton Head, United States, often brings a promising likelihood of sunny weather, with a 53% chance of sunshine. This is a notable continuation of the increasing trend observed from April's 55%, as the region transitions into summer. April typically marks a shift toward more frequent sunny days, and while May maintains a similar probability, the sun begins to shine less reliably in the months that follow. June and July, for instance, dip to 27%, indicating a seasonal peak in cloudiness and humidity. Overall, May stands out as a lovely time to enjoy Hilton Head's outdoor beauty, balancing warmth with the pleasant possibility of sunshine.
In Hilton Head, United States, the month of May signals the arrival of longer days, boasting 13 hours of daylight. This trend reflects the gradual increase in daylight that starts in January with just 10 hours, progressively rising each month. By the time spring arrives in March and April, daylight reaches a welcome 12 hours, setting the stage for the sun-drenched days of May. As summer approaches in June, daylight peaks at 14 hours, but the pattern remains consistent with May, as the duration begins to taper slightly during the latter months of summer. This gradual fluctuation underscores Hilton Head’s enchanting transformation through the seasons, making May a perfect time to bask in its warm, vibrant ambiance.
In Hilton Head during May, average wind speeds hover at a pleasant 4.4 m/s (10 mph), maintaining the steady breeze that characterizes this coastal paradise. As spring reaches its peak, wind patterns reveal a slight uptick from the earlier months, aligning with the arrival of warmer weather. This consistent wind speed, notably similar to that of March and April, fosters ideal conditions for outdoor activities, whether it's sailing, cycling, or simply enjoying a leisurely beach walk. The gentle winds continue to decline as summer approaches, with July and August reporting lower speeds, suggesting that May is a prime month to enjoy the refreshing breezes before the heat of summer sets in.
The weather in Hilton Head changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May'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.
May and January showcase a stark contrast in weather patterns. In May, temperatures range from a minimum of 12°C (53°F) to a maximum of 34°C (94°F), with an average of 23°C (74°F), creating a warm and humid atmosphere with 75% humidity. However, May also sees approximately 89 mm (3.5 in) of precipitation over about 10 days. In contrast, January presents much cooler conditions, featuring temperatures that drop as low as -5°C (23°F) and peak at 24°C (75°F), averaging around 11°C (53°F). The winter month experiences less precipitation, totaling 61 mm (2.4 in) over 7 days, with higher humidity levels at 86%. For a deeper look into January's climate specifics, check out Hilton Head weather in January.
Comparing the weather in May and February reveals distinct differences in temperature and overall climate. In May, the minimum temperature is significantly warmer at 12°C (53°F), with an average of 23°C (74°F) and a peak reaching as high as 34°C (94°F). This month also sees a higher average humidity level of 75% alongside 89 mm (3.5 in) of precipitation over about 10 days. In contrast, February experiences cooler temperatures, ranging from a minimum of 1°C (33°F) to a maximum of 25°C (77°F), with an average of 14°C (57°F). February's humidity is slightly higher at 81%, and it has comparable rainfall at 80 mm (3.1 in) over 11 days. For more details on the weather in February, you can visit Hilton Head weather in February.
In comparing the weather between March and May, May generally offers warmer temperatures, with an average high of 23°C (74°F) compared to March's average high of 16°C (61°F). While March experiences a minimum temperature of 1°C (34°F), May starts at a much milder minimum of 12°C (53°F). Precipitation is slightly higher in May, averaging 89 mm (3.5 in) over 10 days, compared to March's 68 mm (2.7 in) over just 6 days. The humidity levels are also high in both months, with May at 75% and March slightly higher at 81%. For more detailed insights, you can check out Hilton Head weather in March.
May typically experiences warmer temperatures compared to April, with minimums averaging 12°C (53°F) and maximums reaching up to 34°C (94°F), compared to April's minimum of 6°C (43°F) and maximum of 30°C (87°F). The average temperature in May is also higher, at 23°C (74°F), while April averages 19°C (67°F). While both months receive similar amounts of precipitation—with May at 89 mm (3.5 in) over 10 days and April at 85 mm (3.4 in) over 8 days—May tends to have slightly more humid conditions at 75%, compared to April’s 79%. For more details, check out this link: Hilton Head weather in April.
May and June present distinct yet somewhat similar weather patterns. In May, temperatures range from a minimum of 12°C (53°F) to a maximum of 34°C (94°F), with an average of 23°C (74°F). The month sees about 89 mm (3.5 in) of precipitation spread over 10 days, accompanied by a humidity level of 75%. In contrast, June provides warmer conditions, featuring a minimum temperature of 18°C (64°F) and an average of 26°C (79°F), while still reaching a maximum of 34°C (93°F). However, rainfall increases to 122 mm (4.8 in) over 18 days, with the humidity remaining constant at 75%. For more detailed information about June weather, you can visit this link: Hilton Head weather in June.
In May, temperatures range from a mild 12°C (53°F) to a warm 34°C (94°F), with an average of 23°C (74°F). The month sees about 89 mm (3.5 in) of precipitation over 10 days, and humidity hovers around 75%. In contrast, July experiences higher temperatures, with minimums of 23°C (73°F) and maximums reaching 35°C (95°F), averaging 28°C (82°F). This month also has increased rainfall, receiving 156 mm (6.1 in) over 19 days, and higher humidity levels at 80%. For more details about July weather, you can check out the information here: Hilton Head weather in July.
May and August present distinct weather patterns that highlight the transition from spring to summer. In May, temperatures range from a comfortable minimum of 12°C (53°F) to a warm average of 23°C (74°F), with a peak of 34°C (94°F). The month sees about 89 mm (3.5 in) of precipitation spread over approximately 10 days, accompanied by a humidity level of 75%. In contrast, August experiences a noticeably warmer climate, with minimum temperatures at 22°C (73°F) and an average of 27°C (82°F), also peaking at 34°C (94°F). However, it brings significantly more rainfall, totaling 180 mm (7.1 in) over about 22 days, and slightly higher humidity at 81%. For a more detailed analysis of August weather, you can check Hilton Head weather in August.
May and September showcase similar maximum temperatures, both reaching around 34°C (94°F), but the overall feel of the two months differs significantly. In May, the average temperature is a pleasant 23°C (74°F) with lower humidity at 75% and less precipitation, totaling 89 mm (3.5 in) over about 10 days. In contrast, September offers a warmer average temperature of 26°C (79°F) but comes with increased humidity at 83% and higher rainfall, accumulating 127 mm (5.0 in) over approximately 15 days. For more detailed information, you can check Hilton Head weather in September.
May and October both feature pleasant average temperatures around 23°C (74°F), creating a comfortable atmosphere for outdoor activities. However, May tends to be warmer overall, with maximum temperatures reaching up to 34°C (94°F), compared to October’s peak of 31°C (89°F). Precipitation levels are similar in both months, with May experiencing 89 mm (3.5 in) over 10 days and October slightly higher at 88 mm (3.5 in) over 11 days. Additionally, October typically has cooler minimum temperatures, dipping down to 6°C (42°F) versus May's minimum of 12°C (53°F). For more detailed weather information, you can check Hilton Head weather in October.
May and November offer contrasting weather experiences. In May, temperatures can range from a minimum of 12°C (53°F) to a maximum of 34°C (94°F), with an average temperature of 23°C (74°F). This month also witnesses considerable humidity at 75% and receives about 89 mm (3.5 in) of rainfall over approximately 10 days. In contrast, November features cooler temperatures, starting at a minimum of 1°C (35°F) and reaching a maximum of 28°C (82°F), with an average of 16°C (61°F). Although November also sees similar rainfall at 90 mm (3.5 in), it occurs over a shorter period of approximately 8 days, and the humidity slightly increases to 85%. For more detailed insights, check out Hilton Head weather in November.
May and December present stark contrasts in weather. In May, temperatures range from a mild 12°C (53°F) at night to a warm 34°C (94°F) during the day, with an average of 23°C (74°F). The humidity levels sit at a comfortable 75%, and the month experiences 89 mm (3.5 in) of rain over about 10 days. In contrast, December brings much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 23°C (73°F), averaging 13°C (55°F). Precipitation increases to 125 mm (4.9 in) over the same number of days, and humidity rises to 87%. For those interested in December's specific conditions, more information can be found here: Hilton Head weather in December.
As May arrives on Hilton Head, the island transforms into a vibrant canvas of warm temperatures and blossoming nature. With average highs reaching a pleasant 23°C (74°F), it stands out compared to the cooler temperatures of earlier months. While occasional rainfall may grace the island, with about 10 days experiencing precipitation, the overall atmosphere is decidedly balmy and invigorating. The humidity levels average around 75%, creating an inviting tropical feel, perfect for beach outings and outdoor activities. As you plan your visit, discovering more about the weather patterns can be helpful. For further insights on what to expect throughout the year, check out Hilton Head Climate.