S
M
T
W
T
F
S
26
81°
68°
27
72°
64°
28
77°
66°
29
81°
68°
30
88°
72°
1
77°
70°
2
76°
55°
3
72°
59°
4
75°
65°
5
78°
68°
6
88°
69°
7
81°
62°
8
76°
63°
9
80°
67°
10
81°
70°
11
82°
71°
12
84°
70°
13
85°
56°
14
84°
69°
15
84°
70°
16
83°
70°
17
84°
71°
18
83°
71°
19
83°
70°
20
85°
71°
21
85°
71°
22
84°
72°
23
86°
72°
24
86°
71°
25
85°
72°
26
84°
73°
27
85°
72°
28
84°
73°
29
82°
73°
30
83°
72°
31
82°
73°
1
83°
73°
2
82°
72°
3
83°
73°
4
84°
74°
5
87°
72°
6
83°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saint Simons Island
Saint Simons Island's May 2026 forecast shows daily high temperatures ranging from 72° to 88°, with overnight lows between 55° and 74°. The average high for May is 82° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Saint Simons Island. See also: June | July | August.
