What is the current water temperature in Hilton Head Island?

Q: What is the current water temperature in Hilton Head Island?

As of now, in Hilton Head Island, the water temperature is 9.39°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

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.

48.9

°F

February 6, 20:50

Trend:

stable

Yesterday:

45.2°F

Tomorrow:

48.6°F

Sunrise:

07:14

Sunset:

18:01

Day Length:

10 h. 47 min.

Hilton Head Island in February

Minimum:

50.6°F

Average:

56.8°F

Maximum:

66.7°F

Sea water temperature in Hilton Head Island today

As of now, in Hilton Head Island, the water temperature is 48.9°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 6.5°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 61.2°F on 2016, while the historical minimum was 52.3°F on 2022.

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 minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 48.8°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
Jan 23	51.2°F	47.3°F	53.3°F
Jan 24	50.8°F	44.6°F	52.7°F
Jan 25	51.7°F	44.9°F	52.9°F
Jan 26	51.4°F	45.4°F	52.8°F
Jan 27	50.6°F	45.6°F	53.0°F
Jan 28	50.4°F	45.0°F	53.7°F
Jan 29	50.4°F	46.2°F	53.9°F
Jan 30	49.1°F	47.1°F	52.8°F
Jan 31	48.8°F	47.6°F	52.4°F
Feb 1	48.3°F	48.7°F	52.4°F
Feb 2	46.7°F	48.7°F	52.5°F
Feb 3	45.7°F	48.8°F	52.5°F
Feb 4	45.4°F	51.4°F	52.9°F
Feb 5	45.2°F	52.8°F	53.2°F
Feb 6	48.9°F	54.3°F	55.4°F
Feb 7	48.6°F	54.1°F	55.1°F
Feb 8	48.7°F	55.5°F	55.2°F
Feb 9	48.9°F	57.7°F	55.4°F
Feb 10	48.8°F	58.4°F	55.3°F
Feb 11	48.8°F	58.0°F	55.3°F
Feb 12	49.2°F	58.4°F	55.8°F
Feb 13	48.9°F	57.4°F	55.4°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 56.0°F in Winter, 67.9°F in Spring, 83.7°F in Summer, and 74.2°F in Autumn.