World Resorts USA Hilton Head Island Weather

Hilton Head Island sea water temperature

Current sea water temperature:
+76.6°F
Minimum sea water temperature in October: 80.2°F
Maximum sea water temperature in October: 66.0°F
Average sea water temperature in October: 73.9°F

Sea water temperature for the last 10 days:

October 12 76.6°F October 7 78.8°F
October 11 77.9°F October 6 79.3°F
October 10 77.5°F October 5 79.3°F
October 9 77.9°F October 4 79.5°F
October 8 78.3°F October 3 79.3°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:
2026
2025
2024

The average sea water temperature in August of 2026 was 86.2°F. The highest and lowest sea temperatures during the month were 88.0°F and 84.7°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 86.3°F. The highest and lowest sea temperatures during the month were 87.3°F and 84.9°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 83.2°F. The highest and lowest sea temperatures during the month were 86.0°F and 77.5°F.

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 86.0 °F
June 84.8 °F
Warmest sea temp:
July 85.3 °F
August 85.3 °F
September 81.8 °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
+82°F
SE 9 mph
Feels like: +84°F
Precip.: 2%
Places in USA:
Name
°F
+68°F
+72°F
+79°F
+70°F
+68°F
+88°F
+73°F
+82°F
+75°F
+66°F
+59°F
+66°F
+86°F
+88°F
+79°F
24 Hours Forecast
Hilton Head Island
Local time: 13:38
October 12, monday
1500
82°F
SE
9 mph
1800
81°F
SE
7 mph
2100
75°F
SE
4 mph
October 13, tuesday
0000
73°F
S
5 mph
0300
72°F
S
4 mph
0600
70°F
S
6 mph
0900
72°F
S
6 mph
1200
81°F
W
5 mph
Units of measurement: °C / °F