S
M
T
W
T
F
S
26
87°
76°
27
87°
76°
28
88°
77°
29
87°
77°
30
88°
78°
31
88°
76°
1
89°
76°
2
88°
77°
3
88°
76°
4
89°
76°
5
88°
78°
6
89°
76°
7
89°
75°
8
86°
75°
9
87°
76°
10
87°
76°
11
88°
75°
12
86°
76°
13
86°
74°
14
88°
75°
15
89°
78°
16
89°
78°
17
88°
77°
18
89°
78°
19
89°
76°
20
88°
77°
21
89°
77°
22
89°
78°
23
88°
78°
24
89°
77°
25
89°
78°
26
88°
77°
27
89°
77°
28
89°
76°
29
87°
77°
30
88°
75°
31
88°
75°
1
87°
74°
2
87°
74°
3
86°
75°
4
87°
77°
5
87°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Kiawah Island
Kiawah Island's August 2026 forecast shows daily high temperatures ranging from 86° to 89°, with overnight lows between 74° and 78°. The average high for August is 88° with an average low of 76°. 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 Kiawah Island. See also: September | October | November.
