Current sea water temperature:
+83.8°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: | 81.9°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 22 | 83.8°F | September 17 | 84.6°F |
| September 21 | 83.8°F | September 16 | 85.3°F |
| September 20 | 83.3°F | September 15 | 84.7°F |
| September 19 | 83.1°F | September 14 | 83.5°F |
| September 18 | 83.7°F | September 13 | 84.0°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:
2026
2025
2024
The average sea water temperature in September of 2026 was 84.4°F. The highest and lowest sea temperatures during the month were 86.0°F and 83.1°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: 05:17
September 22, tuesday
0600
77°F
S
4 mph
4 mph
0900
79°F
S
6 mph
6 mph
1200
86°F
W
6 mph
6 mph
1500
81°F
NW
12 mph
12 mph
1800
82°F
NW
9 mph
9 mph
2100
81°F
NW
6 mph
6 mph
September 23, wednesday
0000
79°F
N
6 mph
6 mph
0300
77°F
E
3 mph
3 mph
