Measurements:
°C
°F
CURRENT WEATHER
15:16
Hilton Head Island
94°F
N 11 mph
Feels like: 112°F
Precip: 6%
World Resorts USA Hilton Head Island Weather

7 Day Weather Forecast

08.05
wed
DAY
96°F
N 11 mph
precip
4%
NIGHT
84°F
NW 11 mph
precip
9%
08.06
thu
DAY
90°F
NW 8 mph
precip
5%
NIGHT
86°F
N 11 mph
precip
10%
08.07
fri
DAY
90°F
NW 7 mph
precip
19%
NIGHT
86°F
NW 11 mph
precip
8%
08.08
sat
DAY
88°F
NW 9 mph
precip
24%
NIGHT
86°F
N 11 mph
precip
12%
08.09
sun
DAY
90°F
N 4 mph
precip
17%
NIGHT
86°F
N 13 mph
precip
10%
08.10
mon
DAY
92°F
N 11 mph
precip
6%
NIGHT
86°F
NE 11 mph
precip
9%
08.11
tue
DAY
92°F
NE 9 mph
precip
6%
NIGHT
88°F
NE 11 mph
precip
13%

Hilton Head Island Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Hilton Head Island was 29.4°F. The maximum and minimum values were 27.7°F and 31.6°F respectively.

Hilton Head Island on the Weather Map

Best Time to Visit Hilton Head Island
The most sunny months:
October 17 days
November 15 days
December 15 days
The most warm months:
July 92.2 °F
August 89.5 °F
June 88.7 °F
Warmest sea temperature:
July 89.2 °F
August 89.0 °F
September 85.1 °F
The most cold months:
January 56.2 °F
December 59.8 °F
February 60.8 °F
The most rainy months:
August 5 days
July 4 days
September 3 days
The most windy months:
January 8 mph
February 8 mph
April 8 mph
more details