Hilton Head Island weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Poor
Best time to visit: May – October
What is the weather like in Hilton Head Island in January?
In January, Hilton Head Island is cool: daytime highs average 14 °C, and nights cool down to about 8 °C. The sea averages 14.7 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain falls on about 8 days, adding up to 73 mm. All in all, January is not an ideal month for a holiday in Hilton Head Island.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 20 | 22 | 23 |
| Day | 16° | 14° | 16° |
| Night | 10° | 8° | 10° |
| Sea | 17° | 15° | 14° |
| Sun | 5 h | 5 h | 6 h |
| Rain days | 9 | 8 | 9 |
More details for January
- Daylight
- 10 h 15 min07:24 – 17:39
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 52 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−5America/New_York
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %40 %
- Few rainy daysweight 20 %71 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in January
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Hilton Head Island in January: quick answers
Is Hilton Head Island hot in January?
No. In January, Hilton Head Island is cool: daytime highs average 14 °C and nights drop to about 8 °C.
Can you swim in Hilton Head Island in January?
Only if you don't mind cold water: in January the sea averages just 14.7 °C. Comfortable swimming is possible from May to October.
Does it rain much in Hilton Head Island in January?
Rain falls on about 8 days, adding up to 73 mm.
Hilton Head Island month by month
The whole year in Hilton Head IslandAll destinations: USAWhere to go in JanuarySea temperature in January
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