S
M
T
W
T
F
S
26
89°
72°
27
88°
71°
28
89°
72°
29
89°
72°
30
88°
75°
31
92°
73°
1
91°
74°
2
92°
75°
3
92°
75°
4
Hist. Avg.
89°
73°
5
Hist. Avg.
89°
73°
6
Hist. Avg.
89°
73°
7
Hist. Avg.
89°
73°
8
Hist. Avg.
89°
73°
9
Hist. Avg.
89°
73°
10
Hist. Avg.
89°
73°
11
Hist. Avg.
89°
73°
12
Hist. Avg.
88°
73°
13
Hist. Avg.
88°
73°
14
Hist. Avg.
88°
73°
15
Hist. Avg.
88°
73°
16
Hist. Avg.
88°
73°
17
Hist. Avg.
88°
73°
18
Hist. Avg.
88°
73°
19
Hist. Avg.
88°
73°
20
Hist. Avg.
88°
73°
21
Hist. Avg.
88°
73°
22
Hist. Avg.
88°
73°
23
Hist. Avg.
88°
73°
24
Hist. Avg.
88°
73°
25
Hist. Avg.
88°
73°
26
Hist. Avg.
88°
73°
27
Hist. Avg.
87°
72°
28
Hist. Avg.
87°
72°
29
Hist. Avg.
87°
72°
30
Hist. Avg.
87°
72°
31
Hist. Avg.
87°
72°
1
Hist. Avg.
87°
72°
2
Hist. Avg.
87°
72°
3
Hist. Avg.
87°
72°
4
Hist. Avg.
86°
72°
5
Hist. Avg.
86°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Hilton Head Island
Hilton Head Island's August 2026 forecast shows daily high temperatures ranging from 88° to 92°, with overnight lows between 71° and 75°. The average high for August is 90° with an average low of 73°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Hilton Head Island. See also: September | October | November.
