All data are in degrees Fahrenheit

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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

62.7

°F

November 29, 05:58

Trend:

decreasing

Yesterday:

63.4°F

Tomorrow:

62.5°F

Sunrise:

07:04

Sunset:

17:18

Day Length:

10 h. 14 min.

Hilton Head Island in December

Minimum:

49.1°F

Average:

55.3°F

Maximum:

61.6°F

Sea water temperature in Hilton Head Island today

As of now, in Hilton Head Island, the water temperature is 62.7°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 0.6°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 fall 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 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 66.2°F on 2020, while the historical minimum was 57.9°F on 2021.

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. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 61.6°F, the minimum temperature may reach 60.7°F, and the maximum might stay at 62.5°F.

Daily water temperature in Hilton Head Island

Date Current Year

actual* / forecast**

last year 10 years average
Nov 15 60.2°F 71.0°F 66.7°F
Nov 16 60.7°F 69.4°F 66.4°F
Nov 17 61.6°F 68.4°F 66.0°F
Nov 18 61.4°F 68.1°F 65.5°F
Nov 19 60.8°F 68.1°F 64.9°F
Nov 20 61.5°F 69.0°F 64.7°F
Nov 21 62.0°F 69.4°F 64.5°F
Nov 22 61.6°F 68.5°F 63.9°F
Nov 23 63.8°F 66.5°F 63.3°F
Nov 24 64.1°F 64.7°F 62.7°F
Nov 25 63.9°F 63.8°F 62.4°F
Nov 26 64.2°F 63.7°F 62.2°F
Nov 27 62.9°F 63.8°F 62.2°F
Nov 28 63.4°F 64.0°F 62.0°F
Nov 29 62.7°F 65.3°F 62.1°F
Nov 30 62.5°F 64.8°F 61.8°F
Dec 1 62.2°F 63.3°F 61.5°F
Dec 2 61.9°F 62.4°F 61.3°F
Dec 3 61.6°F 61.1°F 61.0°F
Dec 4 61.3°F 60.3°F 60.7°F
Dec 5 60.9°F 58.2°F 60.3°F
Dec 6 60.7°F 58.2°F 60.1°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 162 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 56.6°F in Winter, 67.8°F in Spring, 83.6°F in Summer, and 74.2°F in Autumn.