S
M
T
W
T
F
S
29
31°
25°
30
35°
17°
1
27°
11°
2
26°
5°
3
24°
3°
4
22°
4°
5
19°
9°
6
22°
11°
7
24°
11°
8
25°
12°
9
25°
5°
10
22°
4°
11
21°
14°
12
25°
11°
13
28°
4°
14
22°
0°
15
18°
-1°
16
14°
13°
17
27°
17°
18
31°
17°
19
32°
15°
20
35°
16°
21
31°
18°
22
34°
15°
23
35°
13°
24
28°
11°
25
26°
12°
26
28°
14°
27
28°
13°
28
29°
12°
29
28°
12°
30
28°
9°
31
27°
5°
1
22°
5°
2
18°
6°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in St. Martin
St. Martin's December 2026 forecast shows daily high temperatures ranging from 14° to 35°, with overnight lows between -1° and 25°. The average high for December is 26° with an average low of 11°. 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 St. Martin. See also: January | February | March.
