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 20.74°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

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.

69.3

°F

October 29, 07:18

Trend:

stable

Yesterday:

69.4°F

Tomorrow:

69.3°F

Sunrise:

07:37

Sunset:

18:36

Day Length:

10 h. 59 min.

Hilton Head Island in November

Minimum:

48.7°F

Average:

55.5°F

Maximum:

62.1°F

Sea water temperature in Hilton Head Island today

As of now, in Hilton Head Island, the water temperature is 69.3°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.5°F lower 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

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 75.3°F on 2020, while the historical minimum was 68.8°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. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 68.4°F, the minimum temperature may reach 67.2°F, and the maximum might stay at 69.3°F.

Daily water temperature in Hilton Head Island

Date	Current Year actual* / forecast**	last year	10 years average
Oct 15	70.4°F	73.4°F	74.9°F
Oct 16	71.1°F	72.2°F	74.8°F
Oct 17	70.5°F	71.1°F	74.7°F
Oct 18	70.7°F	70.3°F	74.2°F
Oct 19	70.5°F	68.6°F	73.5°F
Oct 20	71.6°F	68.1°F	72.9°F
Oct 21	70.8°F	68.2°F	72.6°F
Oct 22	70.8°F	67.8°F	72.3°F
Oct 23	71.3°F	68.3°F	72.3°F
Oct 24	71.6°F	68.2°F	72.1°F
Oct 25	70.4°F	69.1°F	71.7°F
Oct 26	69.5°F	69.4°F	71.7°F
Oct 27	69.4°F	70.3°F	71.9°F
Oct 28	69.4°F	70.7°F	71.7°F
Oct 29	69.3°F	70.3°F	71.9°F
Oct 30	69.3°F	70.0°F	71.9°F
Oct 31	69.0°F	70.3°F	71.5°F
Nov 1	69.0°F	71.3°F	71.5°F
Nov 2	68.7°F	71.9°F	71.2°F
Nov 3	68.2°F	71.9°F	70.7°F
Nov 4	67.4°F	72.3°F	69.9°F
Nov 5	67.2°F	71.4°F	69.7°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 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 74.3°F in Autumn.