S
M
T
W
T
F
S
29
65°
41°
30
65°
45°
1
68°
39°
2
69°
29°
3
65°
28°
4
56°
24°
5
50°
23°
6
47°
23°
7
49°
26°
8
49°
28°
9
51°
24°
10
47°
23°
11
48°
33°
12
50°
30°
13
54°
25°
14
57°
24°
15
47°
26°
16
50°
34°
17
51°
37°
18
51°
39°
19
58°
41°
20
59°
39°
21
61°
39°
22
59°
41°
23
60°
37°
24
63°
30°
25
54°
29°
26
52°
37°
27
55°
41°
28
59°
40°
29
59°
36°
30
61°
33°
31
59°
24°
1
54°
27°
2
46°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Saint Thomas
Saint Thomas's December 2026 forecast shows daily high temperatures ranging from 46° to 69°, with overnight lows between 23° and 45°. The average high for December is 56° with an average low of 32°. 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 Saint Thomas. See also: January | February | March.
