S
M
T
W
T
F
S
29
64°
39°
30
73°
46°
31
77°
52°
1
79°
54°
2
77°
55°
3
79°
59°
4
81°
59°
5
82°
64°
6
66°
54°
7
68°
50°
8
64°
46°
9
70°
43°
10
72°
46°
11
82°
46°
12
77°
50°
13
79°
52°
14
81°
54°
15
86°
59°
16
74°
63°
17
84°
64°
18
84°
68°
19
83°
48°
20
70°
49°
21
70°
55°
22
76°
56°
23
78°
62°
24
79°
63°
25
79°
64°
26
77°
61°
27
79°
59°
28
76°
57°
29
75°
51°
30
77°
60°
1
76°
58°
2
78°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in South Santee
South Santee's April 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 48° and 68°. The average high for April is 77° with an average low of 59°. 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 South Santee. See also: May | June | July.