Weather in Hilton Head Island: January
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Average day temperature: | 55.8°F |
| Average night temperature: | 48.3°F | |
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Sea water temperature: | 53.8°F |
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Number of sunny days: | 13 days |
| Day length: | 10.1 - 10.6 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.0 in. | |
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forecast
| Hilton Head Island |
temperature
| Hilton Head Island |
Air temperature in January, °F
The highest day temperature during January of 2025 was 60°F. At the same time the lowest night temperature was 29°F. Daily and nightly averages during January were 48.7°F and 43.4°F.
Sea water temperature in Hilton Head Island in January, °F
The average sea water temperature in January of 2025 was 49.6°F. The highest and lowest sea temperatures during the month were 55.6°F and 44.6°F.
Mostly all days in January are sunny but cloudy days are also possible.
Precipitation total in January, in.
Precipitation total value in Hilton Head Island in January is 1.0 in. Other months of the year show relatively similar values.
The average wind speed value in January is 8.0 mph It makes January most windy month 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 January is: 6.2.
Best time for vacation in Hilton Head Island
Hilton Head Island on a weather map
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