World Resorts USA Hilton Head Island Weather

Hilton Head Island sea water temperature

Current sea water temperature:
+53.6°F
Minimum sea water temperature in February: 63.7°F
Maximum sea water temperature in February: 45.1°F
Average sea water temperature in February: 54.2°F

Sea water temperature for the last 10 days:

February 26 53.6°F February 21 52.0°F
February 25 52.9°F February 20 52.2°F
February 24 55.2°F February 19 51.8°F
February 23 54.7°F February 18 51.1°F
February 22 52.0°F February 17 51.6°F

When is the warmest sea in Hilton Head Island?

Based on the data about daily sea water temperature for the last three years the warmest sea in Hilton Head Island was noticed in August, July and September.

Monthly Sea Temperatures in Hilton Head Island, °F

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.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 85.7°F. The highest and lowest sea temperatures during the month were 88.3°F and 83.8°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 79.8°F. The highest and lowest sea temperatures during the month were 81.5°F and 77.2°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 59.7 °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
+66°F
N 9 mph
Feels like: +66°F
Precip.: 0%
Places in USA:
Name
°F
+54°F
+72°F
+72°F
+88°F
+86°F
+75°F
+77°F
+68°F
+39°F
+81°F
+68°F
+73°F
+75°F
+75°F
+39°F
24 Hours Forecast
Hilton Head Island
Local time: 18:07
February 26, thursday
2100
59°F
NE
8 mph
February 27, friday
0000
61°F
NE
11 mph
0300
61°F
NE
9 mph
0600
57°F
NE
8 mph
0900
57°F
NE
5 mph
1200
57°F
S
4 mph
1500
57°F
W
6 mph
1800
57°F
NW
6 mph
Units of measurement: °C / °F