Weather in Hilton Head Island: April
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Average day temperature: | 73.1°F |
| Average night temperature: | 61.5°F | |
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Sea water temperature: | 68.3°F |
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Number of sunny days: | 14 days |
| Day length: | 12.5 - 13.4 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.3 in. | |
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forecast
| Hilton Head Island |
temperature
| Hilton Head Island |
Air temperature in April, °F
The highest day temperature during April of 2025 was 85°F. At the same time the lowest night temperature was 54°F. Daily and nightly averages during April were 77.0°F and 64.8°F.
Sea water temperature in Hilton Head Island in April, °F
The average sea water temperature in April of 2025 was 69.4°F. The highest and lowest sea temperatures during the month were 74.5°F and 64.2°F.
Mostly all days in April are sunny but cloudy days are also possible.
Precipitation total in April, in.
Precipitation total value in Hilton Head Island in April is 1.3 in. Other months of the year show relatively similar values.
The average wind speed value in April is 7.9 mph It makes April one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in April is: 8.4.
Best time for vacation in Hilton Head Island
Hilton Head Island on a weather map
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