Measurements:
°C
°F
CURRENT WEATHER
13:06
Hilton Head Island
84°F
SE 6 mph
Feels like: 86°F
Precip: 0%
World Resorts USA Hilton Head Island Weather

7 Day Weather Forecast

05.14
thu
DAY
84°F
SE 6 mph
precip
0%
NIGHT
70°F
S 10 mph
precip
0%
05.15
fri
DAY
72°F
W 10 mph
precip
0%
NIGHT
70°F
NW 9 mph
precip
0%
05.16
sat
DAY
78°F
NW 12 mph
precip
100%
NIGHT
76°F
N 11 mph
precip
0%
05.17
sun
DAY
78°F
NW 9 mph
precip
0%
NIGHT
76°F
NW 11 mph
precip
0%
05.18
mon
DAY
78°F
NW 9 mph
precip
0%
NIGHT
74°F
NW 9 mph
precip
0%
05.19
tue
DAY
78°F
NW 9 mph
precip
0%
NIGHT
76°F
NW 9 mph
precip
0%
05.20
wed
DAY
80°F
NW 9 mph
precip
0%
NIGHT
76°F
N 9 mph
precip
0%

Hilton Head Island Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Hilton Head Island was 24.8°F. The maximum and minimum values were 23.1°F and 26.6°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 91.5 °F
August 89.5 °F
June 88.2 °F
Warmest sea temperature:
July 89.0 °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 5 days
September 3 days
The most windy months:
January 8 mph
February 8 mph
April 8 mph
more details