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

86.0

°F

June 27, 01:28

Trend:

increasing

Yesterday:

85.9°F

Tomorrow:

86.2°F

Sunrise:

06:18

Sunset:

20:33

Day Length:

14 h. 15 min.

Hilton Head Island in July

Minimum:

49.0°F

Average:

56.5°F

Maximum:

63.1°F

Sea water temperature in Hilton Head Island today

As of now, in Hilton Head Island, the water temperature is 86.0°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 3.5°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 rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 84.1°F on 2022, while the historical minimum was 80.5°F on 2023.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 86.7°F, with minimum temperature starting at 86.2°F, while the maximum might reach 87.3°F.

Daily water temperature in Hilton Head Island

Date Current Year

actual* / forecast**

last year 10 years average
Jun 13 81.2°F 82.3°F 81.2°F
Jun 14 82.7°F 83.2°F 81.3°F
Jun 15 82.3°F 82.6°F 81.2°F
Jun 16 82.3°F 82.1°F 81.3°F
Jun 17 82.1°F 83.4°F 81.6°F
Jun 18 83.5°F 83.4°F 81.7°F
Jun 19 84.2°F 83.4°F 81.7°F
Jun 20 84.0°F 82.8°F 81.7°F
Jun 21 84.1°F 82.5°F 81.9°F
Jun 22 84.0°F 82.1°F 82.0°F
Jun 23 85.1°F 82.7°F 82.3°F
Jun 24 84.7°F 82.7°F 82.3°F
Jun 25 85.6°F 83.5°F 82.5°F
Jun 26 85.9°F 83.9°F 82.5°F
Jun 27 86.0°F 83.9°F 82.5°F
Jun 28 86.2°F 84.5°F 82.7°F
Jun 29 86.4°F 84.3°F 82.9°F
Jun 30 86.5°F 84.9°F 83.0°F
Jul 1 86.8°F 85.0°F 83.3°F
Jul 2 86.9°F 84.9°F 83.4°F
Jul 3 87.3°F 85.1°F 83.8°F
Jul 4 87.3°F 84.8°F 83.9°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 22, 2023, reaching a 87.7°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 74.4°F in Autumn.