Measurements:
°C
°F
CURRENT WEATHER
09:41
Hilton Head Island
86°F
SW 12 mph
Feels like: 94°F
Precip: 18%
World Resorts USA Hilton Head Island Weather

7 Day Weather Forecast

09.15
tue
DAY
88°F
W 18 mph
precip
27%
NIGHT
82°F
W 11 mph
precip
12%
09.16
wed
DAY
86°F
SW 13 mph
precip
10%
NIGHT
82°F
W 11 mph
precip
14%
09.17
thu
DAY
86°F
SW 11 mph
precip
8%
NIGHT
80°F
W 7 mph
precip
12%
09.18
fri
DAY
88°F
W 9 mph
precip
9%
NIGHT
82°F
NW 6 mph
precip
13%
09.19
sat
DAY
86°F
W 6 mph
precip
27%
NIGHT
84°F
NW 8 mph
precip
17%
09.20
sun
DAY
86°F
SW 4 mph
precip
50%
NIGHT
82°F
N 7 mph
precip
18%
09.21
mon
DAY
88°F
N 6 mph
precip
23%
NIGHT
82°F
N 10 mph
precip
20%

Hilton Head Island Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Hilton Head Island was 29.2°F. The maximum and minimum values were 28.6°F and 30.0°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 85.1 °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
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