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
Sanibel Island 88.8°F 87.3°F
Everglades 88.8°F 87.0°F
Islamorada 88.8°F 87.3°F
Key West 88.8°F 87.8°F
Key Largo 88.7°F 87.3°F
Marco Island 88.7°F 87.1°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

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 55.8 °F
December 58.8 °F
February 60.1 °F
Rainiest months:
August 5 days
July 5 days
February 3 days
Windiest months:
December 8.1 mph
January 8.0 mph
April 7.9 mph

Hilton Head Island on a weather map

Hilton Head Island
+46°F
E 9 mph
Feels like: +41°F
Precip.: 0%
Places in USA:
Name
°F
+27°F
+73°F
+73°F
+48°F
+55°F
+48°F
+61°F
+66°F
+23°F
+61°F
+54°F
+48°F
+50°F
+61°F
+14°F
24 Hours Forecast
Hilton Head Island
Local time: 04:24
January 02, friday
0600
45°F
E
10 mph
0900
50°F
E
10 mph
1200
55°F
E
11 mph
1500
59°F
NE
10 mph
1800
59°F
NE
9 mph
2100
59°F
NE
7 mph
January 03, saturday
0000
59°F
NE
9 mph
0300
59°F
NE
9 mph
Units of measurement: °C / °F