Measurements:
°C
°F
CURRENT WEATHER
21:01
Hilton Head Island
74°F
SW 9 mph
Feels like: 74°F
Precip: 28%
World Resorts USA Hilton Head Island Weather

7 Day Weather Forecast

10.05
mon
DAY
74°F
SW 7 mph
precip
92%
NIGHT
74°F
SW 9 mph
precip
27%
10.06
tue
DAY
78°F
SW 14 mph
precip
33%
NIGHT
78°F
SW 16 mph
precip
21%
10.07
wed
DAY
80°F
SW 16 mph
precip
17%
NIGHT
76°F
SW 9 mph
precip
18%
10.08
thu
DAY
78°F
SW 11 mph
precip
17%
NIGHT
74°F
SW 6 mph
precip
20%
10.09
fri
DAY
80°F
SW 11 mph
precip
12%
NIGHT
78°F
W 14 mph
precip
29%
10.10
sat
DAY
76°F
W 21 mph
precip
88%
NIGHT
78°F
NW 13 mph
precip
78%
10.11
sun
DAY
86°F
N 10 mph
precip
33%
NIGHT
80°F
E 8 mph
precip
26%

Hilton Head Island Sea Water Temperature in October, °F

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Hilton Head Island was 22.7°F. The maximum and minimum values were 18.9°F and 26.2°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 90.0 °F
June 88.7 °F
Warmest sea temperature:
July 89.2 °F
August 89.2 °F
September 85.4 °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
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