What is the current water temperature in Hilton Head Island?

As of now, in Hilton Head Island, the water temperature is 26.9°F. It's safe to say that the water is comfortably warm for various water-related activities.

United States > Hilton Head Island

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.

80.4

°F

May 27, 04:29

Trend:

increasing

Yesterday:

79.7°F

Tomorrow:

80.7°F

Sunrise:

06:19

Sunset:

20:22

Day Length:

14 h. 3 min.

Hilton Head Island in June

Minimum:

49.9°F

Average:

56.0°F

Maximum:

63.3°F

Sea water temperature in Hilton Head Island today

As of now, in Hilton Head Island, the water temperature is 80.4°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.3°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 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 81.1°F on 2019, while the historical minimum was 75.9°F on 2023.

latest data

last year

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 suggests a gradual increase. The average temperature is expected to rise up to 80.8°F, with minimum temperature starting at 80.5°F, while the maximum might reach 81.0°F.

Daily water temperature in Hilton Head Island

Date	Current Year actual* / forecast**	last year	10 years average
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	74.8°F
May 18	74.3°F	76.6°F	75.3°F
May 19	75.8°F	77.1°F	75.8°F
May 20	75.3°F	77.5°F	76.1°F
May 21	77.4°F	77.3°F	76.4°F
May 22	77.2°F	78.0°F	76.8°F
May 23	78.1°F	78.7°F	77.0°F
May 24	78.2°F	78.9°F	77.5°F
May 25	79.2°F	78.9°F	77.8°F
May 26	79.7°F	78.9°F	78.2°F
May 27	80.4°F	77.5°F	78.1°F
May 28	80.7°F	78.4°F	78.4°F
May 29	80.9°F	78.7°F	78.6°F
May 30	80.5°F	76.6°F	78.2°F
May 31	80.9°F	79.9°F	78.6°F
Jun 1	80.8°F	79.1°F	78.5°F
Jun 2	80.8°F	78.2°F	78.5°F
Jun 3	81.0°F	78.0°F	78.7°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 164 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.