S
M
T
W
T
F
S
29
67°
44°
30
68°
34°
1
54°
29°
2
52°
29°
3
54°
35°
4
59°
39°
5
54°
35°
6
53°
31°
7
53°
28°
8
50°
26°
9
50°
26°
10
51°
29°
11
54°
29°
12
59°
35°
13
56°
36°
14
55°
29°
15
53°
28°
16
50°
31°
17
51°
28°
18
50°
25°
19
49°
24°
20
50°
26°
21
52°
28°
22
56°
28°
23
51°
25°
24
48°
24°
25
48°
26°
26
49°
30°
27
51°
28°
28
52°
27°
29
51°
26°
30
50°
27°
31
51°
24°
1
49°
25°
2
51°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Santo
Santo's December 2026 forecast shows daily high temperatures ranging from 48° to 68°, with overnight lows between 24° and 44°. The average high for December is 53° with an average low of 29°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Santo. See also: January | February | March.
