21.07
tue
tue
Day
93°F
N 16 mph
Precip.
5%
5%
Night
82°F
NE 14 mph
Precip.
39%
39%
22.07
wed
wed
Day
88°F
N 14 mph
Precip.
4%
4%
Night
82°F
N 13 mph
Precip.
63%
63%
23.07
thu
thu
Day
90°F
NE 7 mph
Precip.
4%
4%
Night
79°F
SW 8 mph
Precip.
81%
81%
24.07
fri
fri
Day
77°F
S 9 mph
Precip.
45%
45%
Night
79°F
N 9 mph
Precip.
46%
46%
25.07
sat
sat
Day
84°F
E 8 mph
Precip.
66%
66%
Night
75°F
NW 6 mph
Precip.
20%
20%
26.07
sun
sun
Day
79°F
SE 4 mph
Precip.
9%
9%
Night
79°F
NE 7 mph
Precip.
28%
28%
27.07
mon
mon
Day
86°F
NE 9 mph
Precip.
7%
7%
Night
82°F
NE 11 mph
Precip.
11%
11%
sea water
temperature
temperature
| Hilton Head Island |
monthly
weather
weather
| Hilton Head Island |
current
weather
weather
| Hilton Head Island |
14 days
forecast
forecast
| Hilton Head Island |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 86.1°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.
Air temperature in Hilton Head Island, °F
Precipitation total in Hilton Head Island, in.
* Charts above show average data for the last 3 years.
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: 09:44
July 21, tuesday
1200
93°F
N
16 mph
16 mph
1500
91°F
N
18 mph
18 mph
1800
88°F
N
16 mph
16 mph
2100
84°F
N
16 mph
16 mph
July 22, wednesday
0000
82°F
NE
14 mph
14 mph
0300
82°F
NE
12 mph
12 mph
0600
81°F
NE
12 mph
12 mph
0900
82°F
NE
13 mph
13 mph
