Water temperature in Hilton Head Island
77.8
°F
October 17, 12:01
Trend:
stableYesterday:
77.2°FTomorrow:
77.3°F
Sunrise:
Sunset:
Day Length:
11 h. 20 min.Hilton Head Island in October
Minimum:
48.4°FAverage:
55.3°FMaximum:
61.8°FSea water temperature in Hilton Head Island today
As of now, in Hilton Head Island, the water temperature is 77.8°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.9°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.Recent sea temperature and forecast
Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 80.3°F on 2018, while the historical minimum was 70.5°F on 2025.
Daily water temperature in Hilton Head Island
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Oct 3 | 79.4°F | 77.9°F | 78.9°F |
| Oct 4 | 79.5°F | 77.4°F | 78.6°F |
| Oct 5 | 79.4°F | 76.5°F | 78.2°F |
| Oct 6 | 79.4°F | 76.4°F | 77.9°F |
| Oct 7 | 78.9°F | 77.0°F | 77.7°F |
| Oct 8 | 78.3°F | 76.5°F | 77.3°F |
| Oct 9 | 78.0°F | 76.1°F | 77.1°F |
| Oct 10 | 77.6°F | 75.9°F | 76.9°F |
| Oct 11 | 77.9°F | 75.7°F | 76.6°F |
| Oct 12 | 76.7°F | 75.1°F | 76.1°F |
| Oct 13 | 76.0°F | 74.2°F | 75.7°F |
| Oct 14 | 76.5°F | 70.7°F | 75.4°F |
| Oct 15 | 76.9°F | 70.4°F | 75.2°F |
| Oct 16 | 77.2°F | 71.1°F | 75.1°F |
| Oct 17 | 77.8°F | 70.5°F | 74.8°F |
| Oct 18 | 77.3°F | 70.7°F | 74.4°F |
| Oct 19 | 76.5°F | 70.5°F | 73.6°F |
| Oct 20 | 76.0°F | 71.6°F | 73.1°F |
| Oct 21 | 75.8°F | 70.8°F | 72.9°F |
| Oct 22 | 75.5°F | 70.8°F | 72.5°F |
| Oct 23 | 75.4°F | 71.3°F | 72.5°F |
| Oct 24 | 75.1°F | 71.6°F | 72.2°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.