S
M
T
W
T
F
S
26
81°
61°
27
63°
54°
28
73°
54°
29
79°
61°
30
75°
61°
1
70°
59°
2
64°
54°
3
68°
54°
4
76°
61°
5
78°
65°
6
81°
69°
7
80°
61°
8
72°
59°
9
78°
60°
10
80°
64°
11
82°
66°
12
78°
64°
13
77°
62°
14
82°
65°
15
84°
66°
16
82°
74°
17
77°
68°
18
78°
70°
19
77°
70°
20
82°
71°
21
82°
71°
22
78°
66°
23
77°
65°
24
76°
66°
25
77°
69°
26
79°
69°
27
78°
67°
28
78°
68°
29
79°
69°
30
80°
70°
31
79°
72°
1
80°
74°
2
82°
73°
3
80°
74°
4
80°
74°
5
81°
73°
6
82°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in James Island
James Island's May 2026 forecast shows daily high temperatures ranging from 68° to 84°, with overnight lows between 54° and 74°. The average high for May is 79° with an average low of 67°. 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 James Island. See also: June | July | August.
