Hilton Head Island weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Fair
Best time to visit: May – October
What is the weather like in Hilton Head Island in April?
In April, Hilton Head Island is warm: daytime highs average 22 °C, and nights cool down to about 16 °C. The sea averages 19.1 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 68 mm. All in all, April is a so-so month for a holiday in Hilton Head Island.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 12 h 56 min06:55 – 19:51
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 5 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 46 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 35 %53 %
- Seaweight 25 %30 %
- Sunshineweight 20 %82 %
- Few rainy daysweight 20 %80 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in April
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
Hilton Head Island in April: quick answers
Is Hilton Head Island hot in April?
Warm rather than hot: in April, daytime highs in Hilton Head Island average 22 °C and nights cool to about 16 °C.
Can you swim in Hilton Head Island in April?
Only if you don't mind cold water: in April the sea averages just 19.1 °C. Comfortable swimming is possible from May to October.
Does it rain much in Hilton Head Island in April?
Rain falls on about 7 days, adding up to 68 mm.
Hilton Head Island month by month
The whole year in Hilton Head IslandAll destinations: USAWhere to go in AprilSea temperature in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences