Water temperature in Hilton Head Island
72.0
°F
May 17, 23:53
Trend:
stableYesterday:
72.8°FTomorrow:
72.4°F
Sunrise:
Sunset:
Day Length:
13 h. 51 min.Hilton Head Island in May
Minimum:
50.3°FAverage:
56.2°FMaximum:
64.3°FSea water temperature in Hilton Head Island today
As of now, in Hilton Head Island, the water temperature is 72.0°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 3.1°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise a bit.Recent sea temperature and forecast
The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 76.9°F on 2025, while the historical minimum was 72.1°F on 2021.
Daily water temperature in Hilton Head Island
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| May 3 | 69.5°F | 73.6°F | 72.3°F |
| May 4 | 70.3°F | 74.3°F | 72.8°F |
| May 5 | 70.0°F | 75.3°F | 73.4°F |
| May 6 | 70.5°F | 75.4°F | 73.5°F |
| May 7 | 71.1°F | 75.3°F | 73.7°F |
| May 8 | 72.9°F | 75.4°F | 73.6°F |
| May 9 | 71.5°F | 76.1°F | 73.4°F |
| May 10 | 72.0°F | 75.6°F | 72.9°F |
| May 11 | 73.3°F | 75.7°F | 73.0°F |
| May 12 | 72.0°F | 75.9°F | 73.2°F |
| May 13 | 72.1°F | 75.6°F | 73.7°F |
| May 14 | 72.2°F | 75.6°F | 73.8°F |
| May 15 | 72.6°F | 75.9°F | 74.2°F |
| May 16 | 72.8°F | 76.0°F | 74.4°F |
| May 17 | 72.0°F | 76.9°F | 75.1°F |
| May 18 | 72.4°F | 76.6°F | 75.4°F |
| May 19 | 72.8°F | 77.1°F | 75.8°F |
| May 20 | 73.2°F | 77.5°F | 76.2°F |
| May 21 | 73.3°F | 77.3°F | 76.3°F |
| May 22 | 73.7°F | 78.0°F | 76.8°F |
| May 23 | 73.8°F | 78.7°F | 76.8°F |
| May 24 | 74.4°F | 78.9°F | 77.4°F |
* actual - actual temperature values
** forecast - projected values for the next week
Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.
Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.