S
M
T
W
T
F
S
26
72°
54°
27
73°
55°
28
75°
52°
29
71°
49°
30
72°
50°
1
76°
54°
2
78°
56°
3
77°
54°
4
75°
54°
5
71°
52°
6
71°
53°
7
72°
51°
8
72°
53°
9
76°
57°
10
78°
58°
11
79°
58°
12
79°
57°
13
76°
56°
14
75°
55°
15
75°
55°
16
74°
56°
17
74°
55°
18
73°
55°
19
72°
54°
20
71°
54°
21
71°
53°
22
72°
54°
23
72°
55°
24
74°
57°
25
72°
54°
26
79°
61°
27
81°
61°
28
82°
62°
29
75°
56°
30
73°
56°
31
74°
59°
1
78°
60°
2
82°
61°
3
81°
59°
4
81°
60°
5
80°
61°
6
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Santee
Santee's May 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 49° and 62°. The average high for May is 75° with an average low of 56°. 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 Santee. See also: June | July | August.
