S
M
T
W
T
F
S
31
77°
68°
1
82°
70°
2
78°
60°
3
79°
62°
4
81°
63°
5
81°
66°
6
84°
72°
7
85°
73°
8
86°
75°
9
85°
76°
10
85°
74°
11
86°
73°
12
87°
75°
13
84°
74°
14
85°
76°
15
87°
77°
16
87°
77°
17
86°
76°
18
87°
77°
19
86°
77°
20
87°
76°
21
84°
78°
22
88°
78°
23
87°
77°
24
88°
78°
25
88°
78°
26
87°
77°
27
87°
77°
28
88°
78°
29
85°
77°
30
86°
76°
1
84°
74°
2
84°
75°
3
85°
77°
4
86°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sullivan's Island
Sullivan's Island's June 2026 forecast shows daily high temperatures ranging from 78° to 88°, with overnight lows between 60° and 78°. The average high for June is 85° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Sullivan's Island. See also: July | August | September.
