Current sea water temperature:
+85.3°F
| Minimum sea water temperature in August: | 88.9°F |
| Maximum sea water temperature in August: | 80.8°F |
| Average sea water temperature in August: | 85.2°F |
| more information | |
14 days
forecast
forecast
| Hilton Head Island |
monthly
weather
weather
| Hilton Head Island |
Sea water temperature for the last 10 days:
| August 10 | 85.3°F | August 5 | 85.8°F |
| August 9 | 86.2°F | August 4 | 86.2°F |
| August 8 | 86.0°F | August 3 | 86.7°F |
| August 7 | 85.6°F | August 2 | 86.9°F |
| August 6 | 85.8°F | August 1 | 87.1°F |
Monthly sea water temperature, °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 July, August and September.
Monthly Sea Temperatures in Hilton Head Island, °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 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 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.
current
weather
weather
| Hilton Head Island |
weather in
August
August
| Hilton Head Island |
Best time for vacation in Hilton Head Island
Hilton Head Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Hilton Head Island
Local time: 15:18
August 10, monday
1800
88°F
N
13 mph
13 mph
2100
84°F
NE
15 mph
15 mph
August 11, tuesday
0000
82°F
NE
12 mph
12 mph
0300
81°F
NE
12 mph
12 mph
0600
79°F
E
9 mph
9 mph
0900
82°F
E
7 mph
7 mph
1200
91°F
NE
7 mph
7 mph
1500
93°F
NE
11 mph
11 mph
