Current sea water temperature:
+84.6°F
| Minimum sea water temperature in September: | 87.3°F |
| Maximum sea water temperature in September: | 76.5°F |
| Average sea water temperature in September: | 81.6°F |
| more information | |
14 days
forecast
forecast
| Hilton Head Island |
monthly
weather
weather
| Hilton Head Island |
Sea water temperature for the last 10 days:
| September 1 | 84.6°F | August 27 | 86.5°F |
| August 31 | 84.7°F | August 26 | 86.5°F |
| August 30 | 85.3°F | August 25 | 86.9°F |
| August 29 | 85.5°F | August 24 | 86.7°F |
| August 28 | 86.0°F | August 23 | 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 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:
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
September
September
| 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: 06:21
September 01, tuesday
0900
81°F
SW
5 mph
5 mph
1200
84°F
NW
7 mph
7 mph
1500
84°F
NW
10 mph
10 mph
1800
82°F
NW
10 mph
10 mph
2100
81°F
NW
8 mph
8 mph
September 02, wednesday
0000
81°F
N
5 mph
5 mph
0300
79°F
N
2 mph
2 mph
0600
79°F
S
2 mph
2 mph
