S
M
T
W
T
F
S
26
88°
77°
27
88°
75°
28
93°
77°
29
93°
81°
30
95°
75°
31
90°
75°
1
91°
81°
2
88°
73°
3
88°
75°
4
89°
76°
5
88°
76°
6
87°
75°
7
87°
77°
8
87°
76°
9
88°
77°
10
89°
79°
11
92°
77°
12
91°
76°
13
90°
78°
14
87°
77°
15
87°
76°
16
89°
75°
17
87°
76°
18
90°
79°
19
91°
79°
20
91°
78°
21
90°
78°
22
88°
77°
23
89°
76°
24
89°
78°
25
90°
78°
26
89°
77°
27
88°
78°
28
87°
78°
29
87°
77°
30
89°
78°
31
89°
77°
1
88°
78°
2
87°
77°
3
84°
74°
4
84°
72°
5
85°
72°
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 84° to 92°, with overnight lows between 72° and 79°. The average high for August is 88° with an average low of 77°. 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.
