World Resorts USA Hilton Head Island Weather

Hilton Head Island Sea Temperature in August

Average sea water temperature in August:
+85.2°F
Minimum sea water temperature in August: 88.9°F
Maximum sea water temperature in August: 80.8°F

Daily 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.

Monthly sea water temperature in Hilton Head Island, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Everglades 88.8°F 87.0°F
Key West 88.8°F 87.8°F
Cape Coral 88.7°F 86.8°F
Naples 88.7°F 87.0°F
St. Petersburg 88.7°F 86.9°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Galveston 87.9°F 88.3°F
Galveston Island 87.8°F 88.5°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F
West Palm Beach 86.8°F 86.2°F
Cocoa Beach 86.8°F 84.5°F
Pensacola Beach 86.6°F 87.4°F

Best time for vacation in Hilton Head Island

Sunniest months:
October 17 days
November 15 days
December 15 days
Warmest months:
July 87.3 °F
August 85.5 °F
June 84.4 °F
Warmest sea temp:
July 85.1 °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 5 days
September 3 days
Windiest months:
January 8.3 mph
February 8.2 mph
December 8.1 mph

Hilton Head Island on a weather map

Hilton Head Island
+48°F
S 10 mph
Feels like: +45°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+75°F
+75°F
+77°F
+72°F
+66°F
+70°F
+70°F
+32°F
+63°F
+64°F
+57°F
+54°F
+61°F
+37°F
24 Hours Forecast
Hilton Head Island
Local time: 23:28
March 19, thursday
0000
48°F
S
10 mph
0300
46°F
S
10 mph
0600
46°F
S
11 mph
0900
50°F
S
11 mph
1200
57°F
SW
9 mph
1500
59°F
W
9 mph
1800
59°F
W
9 mph
2100
55°F
W
5 mph
Units of measurement: °C / °F