All data are in degrees Fahrenheit

en

Water temperature in Hilton Head Island

Detailed information about the current water temperature in Hilton Head Island. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Hilton Head Island now

62.0

°F

March 19, 09:07

Trend:

stable

Yesterday:

62.8°F

Tomorrow:

62.0°F

Sunrise:

07:28

Sunset:

19:34

Day Length:

12 h. 6 min.

Hilton Head Island in March

Minimum:

51.6°F

Average:

56.8°F

Maximum:

66.4°F

Sea water temperature in Hilton Head Island today

As of now, in Hilton Head Island, the water temperature is 62.0°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.3°F higher 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 stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 63.9°F on 2024, while the historical minimum was 58.5°F on 2017.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 62.1°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Hilton Head Island

Date Current Year

actual* / forecast**

last year 10 years average
Mar 5 55.8°F 55.2°F 59.1°F
Mar 6 58.2°F 58.2°F 59.6°F
Mar 7 60.3°F 56.7°F 60.1°F
Mar 8 61.0°F 56.3°F 60.0°F
Mar 9 60.7°F 57.5°F 60.0°F
Mar 10 62.2°F 57.0°F 60.2°F
Mar 11 62.7°F 57.3°F 60.7°F
Mar 12 63.3°F 56.5°F 60.6°F
Mar 13 62.9°F 57.7°F 60.9°F
Mar 14 63.1°F 57.8°F 60.9°F
Mar 15 61.5°F 58.9°F 60.9°F
Mar 16 62.3°F 57.4°F 60.7°F
Mar 17 62.1°F 59.6°F 61.1°F
Mar 18 62.8°F 60.5°F 61.2°F
Mar 19 62.0°F 60.5°F 61.7°F
Mar 20 62.0°F 60.5°F 61.7°F
Mar 21 62.1°F 60.8°F 61.8°F
Mar 22 61.8°F 60.1°F 61.6°F
Mar 23 61.8°F 60.3°F 61.5°F
Mar 24 61.9°F 60.5°F 61.7°F
Mar 25 62.3°F 60.7°F 62.1°F
Mar 26 63.0°F 62.1°F 62.7°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.

Sea water temperature in Hilton Head Island by month

In Hilton Head Island, the months May through October offer comfortable swimming conditions, which amounts to 166 swimming days.
The warmest water in Hilton Head Island was recorded on August 1, 2025, reaching a 88.8°F. While the coldest temperature occurred on January 24, 2025, dipping to 44.6°F. The average readings by season are 55.9°F in Winter, 67.9°F in Spring, 83.7°F in Summer, and 74.2°F in Autumn.