S
M
T
W
T
F
S
29
68°
48°
30
73°
52°
31
77°
55°
1
79°
59°
2
77°
61°
3
79°
63°
4
79°
61°
5
79°
68°
6
70°
59°
7
68°
57°
8
64°
54°
9
70°
48°
10
72°
54°
11
81°
50°
12
82°
61°
13
79°
61°
14
80°
63°
15
80°
64°
16
81°
64°
17
83°
64°
18
85°
67°
19
84°
64°
20
77°
57°
21
76°
59°
22
78°
62°
23
80°
63°
24
80°
63°
25
81°
69°
26
78°
65°
27
77°
65°
28
77°
66°
29
75°
66°
30
77°
65°
1
75°
66°
2
76°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in James Island
James Island's April 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 57° and 69°. The average high for April is 79° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in James Island. See also: May | June | July.