April Weather in Hilton Head Island, United States

Last updated: February 24, 2025

April on Hilton Head Island, United States, showcases delightful spring weather, with maximum temperatures reaching 30°C (87°F) and an average of 19°C (67°F), perfect for enjoying the outdoors. While the island enjoys plenty of sunshine, it experiences approximately 85 mm (3.4 in) of rain spread across about 8 days, resulting in a humidity level of 79% that adds a tropical feel to the air. This combination of warmth and occasional showers makes April an inviting time to visit, ideal for both relaxation and recreational activities on this beautiful coastal gem.

April Temperature in Hilton Head Island

As April unfolds on Hilton Head Island, temperatures begin to rise significantly, marking a transition into the warmer months. With a minimum of 6°C (43°F) and a comfortable average of 19°C (67°F), locals and visitors alike start to shed their winter layers. The maximum temperature can soar to 30°C (87°F), offering perfect conditions for outdoor activities and beach outings. This month not only showcases a noticeable increase compared to earlier months but also sets the stage for even hotter conditions as summer approaches. April embodies a delightful blend of warmth that beckons nature lovers and sun seekers to experience the island's blossoming beauty.

April Weather in Hilton Head Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Hilton Head Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec535761677479828179736055
Data source: Temperature data for Hilton Head Island generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Hilton Head Island

April in Hilton Head Island sees a noticeable uptick in precipitation, with an average of 85 mm (3.4 in) of rain falling over 8 days. This marks a slight increase compared to March, which typically experiences 68 mm (2.7 in) over 6 days. As spring transitions into summer, the weather becomes increasingly moist, paving the way for the rainiest months ahead. The gradual rise in precipitation hints at the impending heat, with May on the horizon expected to receive even more rainfall at 89 mm (3.5 in). With every passing month, rainfall and the frequency of rainy days increase, reinforcing the island's lush, vibrant environment as nature awakens.

April Precipitation Trends in Hilton Head Island

The chart displays monthly precipitation patterns in Hilton Head Island, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec62806885891221561801278890125
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Hilton Head Island

In April, Hilton Head Island experiences a comfortable drop in humidity, resting at 79%. This slight decline from the previous months indicates a transition into spring, as temperatures rise and the air begins to feel a bit lighter. Compared to the higher humidity levels in winter, where January peaks at 86%, April offers a refreshing respite, setting the stage for the warmer months ahead. As the summer approaches, moisture levels are likely to rise again, but for now, April presents an idyllic balance, allowing visitors to enjoy the island's natural beauty without the heaviness of humidity.

April Average Humidity in Hilton Head Island

This chart illustrates the average monthly humidity levels in Hilton Head Island, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%81%81%79%75%75%80%81%83%78%85%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Hilton Head Island

As April arrives in Hilton Head Island, the UV Index escalates to 10, marking a significant increase from the previous months. With this very high rating, sun enthusiasts should be particularly cautious, as the burn time drops to just 15 minutes—the same as in March. This pattern signals the start of a trend towards more intense sun exposure, leading into the summer months when the index peaks at 11. Visitors should prepare for this heightened risk by applying sunscreen regularly and seeking shade whenever possible. Embracing the sunshine is delightful, but being sun-smart is essential! For more detailed information, check out the Hilton Head Island UV Index.

Maximum UV Index Levels in Hilton Head Island for April

The chart shows the monthly maximum UV Index (UVI) for Hilton Head Island in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec479101111111110864
Data source: Hilton Head Island April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in Hilton Head Island

April marks a vibrant transition in Hilton Head Island, as the region basks in 309 hours of sunshine, a delightful increase from the previous months. This burst of sunlight not only signals the arrival of spring but also sets the tone for the warmer months ahead. Notably, the trend of rising daylight hours continues into May, with 338 hours anticipated, creating a perfect backdrop for outdoor activities and scenic explorations. As the island moves into the summer months, sunshine peaks in July, reaching an impressive 347 hours. This consistent increase throughout the spring and summer emphasizes Hilton Head's charm as a sunny escape, making it an ideal destination for sun-seekers and nature lovers alike.

Monthly Sunshine Duration in Hilton Head Island: April Highlighted

The April sunshine duration represents the total number of hours Hilton Head Island experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec192h214h282h309h338h321h347h318h304h294h253h218h
Data source: Hilton Head Island April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hilton Head Island During April

As April rolls into Hilton Head Island, residents and visitors can anticipate a noticeable uplift in sunny days, with a 55% chance of sunshine—significantly higher than the preceding months of January through March, which hover around the 38% to 45% mark. This marks a transition into a brighter season, breaking free from winter's grasp. Interestingly, while May follows closely at 53%, the summer months see a dip in sunny probabilities, with June and July plummeting to 27% and 31% respectively. This seasonality indicates that April offers a delightful window of clearer skies before the more unpredictable weather of summer takes hold, making it an ideal time for outdoor activities and enjoying the island's natural beauty.

Percentage of Sunny Days in April in Hilton Head Island

The chart illustrates the percentage of sunny days in Hilton Head Island throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Hilton Head Island experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%38%39%55%53%27%31%27%51%52%61%43%
Data source: Hilton Head Island April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hilton Head Island in April

In Hilton Head Island, April brings a delightful continuation of spring with 12 hours of daylight, mirroring the length of March. This stable duration highlights a gentle transition as the days grow gradually longer, paving the way for the sun-drenched months ahead. Following April, May ushers in a noticeable increase, boasting 13 hours of daylight, setting the stage for summer's vibrant energy. The overall trend showcases a slow yet steady escalation of daylight from the winter months, indicating a rejuvenating shift as nature awakens fully, inviting locals and visitors alike to embrace the longer days and the myriad outdoor activities they inspire.

Average Daylight Hours in Hilton Head Island for April

The chart illustrates the variation in daylight duration in Hilton Head Island throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 17m11h 2m12h12h 59m13h 48m14h 12m13h 59m13h 15m12h 19m11h 20m10h 29m10h 3m
Data source: Hilton Head Island daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Hilton Head Island

April on Hilton Head Island brings a refreshing breeze, with an average wind speed of 4.3 m/s (10 mph), mirroring the gentle gusts of January and March. This steady wind pattern sets the stage for delightful outdoor activities, as the island transitions from the relatively calmer months of late winter to the more variable spring weather. As temperatures rise in May, wind speeds slightly increase to 4.4 m/s, creating perfect conditions for sailing and beach strolls. The month of April stands out not only for its comfortable wind but also as a prelude to the summer’s sultry heat, marking an ideal time for visitors seeking a balance of warmth and refreshing air.

Average April Wind Speed in Hilton Head Island

The chart displays monthly wind speed patterns in Hilton Head Island, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.24.44.3 m/s4.44.13.63.43.23.54.03.8
Data source: Hilton Head Island April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Hilton Head Island Compares to Other Months

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 April'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.

When comparing the weather in April and January, notable differences emerge. April experiences significantly warmer temperatures, with minimums around 6°C (43°F) and maximums reaching up to 30°C (87°F), contrasted with January's chilling lows of -5°C (23°F) and highs of 24°C (75°F). While April has a higher average temperature of 19°C (67°F) and experiences more rainfall at 85 mm (3.4 in) over 8 days, January is drier with 61 mm (2.4 in) of precipitation over just 7 days. Additionally, April's humidity averages 79%, slightly less than January's 86%. For more details on January's conditions, you can visit Hilton Head Island weather in January.

April generally offers warmer temperatures compared to February, with a minimum of 6°C (43°F) and an average high of 19°C (67°F) versus February's minimum of 1°C (33°F) and an average maximum of 14°C (57°F). While both months experience similar levels of precipitation—85 mm (3.4 in) in April and 80 mm (3.1 in) in February—April sees rain on fewer days (8 days) compared to February's 11 days, making it feel slightly drier. Humidity levels are quite comparable as well, with April at 79% and February at 81%. For more detailed insights about February weather, you can check out Hilton Head Island weather in February.

When comparing the weather in March and April, it's evident that April experiences noticeably warmer temperatures, with a minimum of 6°C (43°F) and an average of 19°C (67°F), compared to March's minimum of 1°C (34°F) and average of 16°C (61°F). Despite both months having a similar level of humidity, April sees more precipitation, totaling 85 mm (3.4 in) over 8 days, while March has 68 mm (2.7 in) over just 6 days. This increase in rainfall might contribute to the lushness of the scenery as spring progresses. For more detailed information on the weather patterns for March, you can visit Hilton Head Island weather in March.

In comparing the weather patterns of April and May, we observe a notable increase in temperature. April sees minimum temperatures around 6°C (43°F) and an average of 19°C (67°F), while May starts warmer with a minimum of 12°C (53°F) and an average of 23°C (74°F). The maximum temperatures in May also rise significantly, reaching up to 34°C (94°F) compared to April's maximum of 30°C (87°F). Precipitation levels are similar, with April recording 85 mm (3.4 in) over 8 days and May slightly higher at 89 mm (3.5 in) over 10 days, though humidity in May decreases slightly to 75% from April's 79%. To explore more about the weather in May, check out this link: Hilton Head Island weather in May.

April and June display notable differences in weather patterns. In April, temperatures range from a minimum of 6°C (43°F) to a maximum of 30°C (87°F), with an average of 19°C (67°F). The month experiences about 85 mm (3.4 in) of precipitation over 8 days, coupled with a humidity level of 79%. In contrast, June brings warmer temperatures, with minima around 18°C (64°F), averages at 26°C (79°F), and maxima reaching 34°C (93°F). While June is generally hotter, it also sees increased rainfall, totaling 122 mm (4.8 in) over 18 days, but with slightly lower humidity at 75%. For further details, you can check Hilton Head Island weather in June.

April and July present contrasting weather conditions. In April, temperatures range from a mild minimum of 6°C (43°F) to a comfortable average of 19°C (67°F) and a maximum of 30°C (87°F). This month experiences around 85 mm (3.4 in) of precipitation over about 8 days, accompanied by a humidity level of 79%.

In sharp contrast, July is significantly warmer, with temperatures starting at a minimum of 23°C (73°F) and peaking at an average of 28°C (82°F) and a maximum of 35°C (95°F). Rainfall increases to 156 mm (6.1 in) over 19 days, keeping the humidity similar at 80%. For more detailed insights, check out the Hilton Head Island weather in July.

April and August present quite distinct weather patterns. In April, temperatures range from a mild 6°C (43°F) at night to a warm 30°C (87°F) during the day, with an average of 19°C (67°F). The month experiences around 85 mm (3.4 in) of precipitation over about 8 days, coupled with a humidity level of 79%. In contrast, August boasts much warmer temperatures, with a minimum of 22°C (73°F) and a peak of 34°C (94°F), averaging 27°C (82°F). This summer month sees nearly double the rainfall at 180 mm (7.1 in) across 22 days, while maintaining a similar humidity level of 81%. For a more detailed look at the weather conditions, check out Hilton Head Island weather in August.

April and September offer contrasting weather patterns. In April, temperatures range from a cool minimum of 6°C (43°F) to a pleasant maximum of 30°C (87°F), with an average of 19°C (67°F). Precipitation is moderate at 85 mm (3.4 in) over about 8 days, and humidity sits at a comfortable 79%. In contrast, September experiences warmer conditions, with temperatures ranging from a mild 16°C (61°F) to a peak of 34°C (93°F) and an average of 26°C (79°F). However, it also sees increased rainfall, totaling 127 mm (5.0 in) across approximately 15 days, alongside slightly higher humidity at 83%. This makes September feel warmer and wetter compared to April. For more details, check out Hilton Head Island weather in September.

April and October present similar yet distinct weather patterns. In April, temperatures range from a minimum of 6°C (43°F) to a maximum of 30°C (87°F), with an average of 19°C (67°F). The month sees around 85 mm (3.4 in) of precipitation over approximately 8 days, accompanied by a relatively high humidity of 79%.

In contrast, October experiences slightly warmer temperatures, with a minimum of 6°C (42°F), an average of 23°C (73°F), and a maximum of 31°C (89°F). Precipitation increases slightly to 88 mm (3.5 in) over about 11 days, while humidity sits at a similar level of 78%.

Despite these similarities, the warmer average in October makes it feel more comfortable for outdoor activities. For a detailed look at the weather specifics, check out Hilton Head Island weather in October.

April and November present contrasting weather experiences. April generally enjoys milder temperatures with a minimum of 6°C (43°F) and an average of 19°C (67°F), peaking at a comfortable 30°C (87°F). In contrast, November starts cooler, with minimum temperatures dropping to 1°C (35°F), while maintaining an average of 16°C (61°F) and a maximum of 28°C (82°F). Both months experience similar levels of precipitation, around 85-90 mm (3.4-3.5 in) over approximately 8 days, but November typically has a slightly higher humidity at 85% compared to April's 79%. For more detailed insights on the weather during this month, you can check Hilton Head Island weather in November.

April and December showcase contrasting weather patterns. In April, temperatures range from a minimum of 6°C (43°F) to a maximum of 30°C (87°F), with an average of 19°C (67°F). The month experiences about 85 mm (3.4 in) of precipitation over 8 days and humidity levels around 79%. In contrast, December sees cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 23°C (73°F), averaging 13°C (55°F). It is also wetter, receiving approximately 125 mm (4.9 in) of rainfall over 10 days and higher humidity at 87%. For more details, visit Hilton Head Island weather in December.

Compare Hilton Head Island's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Hilton Head Island

As April arrives on Hilton Head Island, the weather takes a delightful turn, offering a vibrant blend of warmth and mildness that sets it apart from the chillier months of winter. With maximum temperatures reaching a pleasant 30°C, the island welcomes longer days perfect for outdoor adventures. Although some rain may grace the island, with an average of 8 precipitation days, the humidity remains fairly comfortable at 79%. This makes April an inviting time for visitors seeking to escape the heat and enjoy the island's natural beauty. For a deeper dive into the seasonal patterns on Hilton Head Island, check out the extensive information available at Hilton Head Island Climate.