World Resorts USA Hilton Head Island Weather

Hilton Head Island 7 Days Forecast

10.08
mon
Day
90°F
NE 4 mph
Precip.
6%
Night
82°F
NE 12 mph
Precip.
11%
11.08
tue
Day
91°F
NE 7 mph
Precip.
3%
Night
84°F
NE 11 mph
Precip.
8%
12.08
wed
Day
91°F
E 9 mph
Precip.
3%
Night
84°F
NE 9 mph
Precip.
7%
13.08
thu
Day
93°F
E 7 mph
Precip.
3%
Night
84°F
E 9 mph
Precip.
6%
14.08
fri
Day
93°F
NE 5 mph
Precip.
3%
Night
81°F
SW 8 mph
Precip.
26%
15.08
sat
Day
86°F
N 6 mph
Precip.
36%
Night
82°F
NE 8 mph
Precip.
70%
16.08
sun
Day
88°F
SW 3 mph
Precip.
6%
Night
86°F
E 9 mph
Precip.
18%

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 85.0°F. The highest and lowest sea temperatures during the month were 88.9°F and 81.9°F.

Air temperature in Hilton Head Island, °F

Precipitation total in Hilton Head Island, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Hilton Head Island

Sunniest months:
October 17 days
November 15 days
December 15 days
Warmest months:
July 88.0 °F
August 85.5 °F
June 84.8 °F
Warmest sea temp:
July 85.3 °F
August 85.1 °F
September 81.6 °F
Coldest months:
January 55.6 °F
December 58.8 °F
February 59.8 °F
Rainiest months:
August 5 days
July 4 days
September 3 days
Windiest months:
January 8.3 mph
February 8.2 mph
April 8.2 mph

Hilton Head Island on a weather map

Hilton Head Island
+88°F
N 13 mph
Feels like: +102°F
Precip.: 7%
Places in USA:
Name
°F
+91°F
+90°F
+81°F
+108°F
+90°F
+91°F
+79°F
+90°F
+90°F
+79°F
+70°F
+79°F
+88°F
+93°F
+72°F
24 Hours Forecast
Hilton Head Island
Local time: 16:56
August 10, monday
1800
88°F
N
13 mph
2100
84°F
NE
15 mph
August 11, tuesday
0000
82°F
NE
12 mph
0300
81°F
NE
12 mph
0600
79°F
E
9 mph
0900
82°F
E
7 mph
1200
91°F
NE
7 mph
1500
93°F
NE
11 mph
Units of measurement: °C / °F