S
M
T
W
T
F
S
29
48°
22°
30
45°
20°
1
35°
20°
2
33°
21°
3
36°
22°
4
41°
24°
5
44°
30°
6
46°
31°
7
47°
28°
8
48°
25°
9
46°
26°
10
36°
23°
11
39°
20°
12
37°
19°
13
34°
20°
14
33°
17°
15
32°
14°
16
30°
12°
17
28°
13°
18
28°
12°
19
28°
9°
20
28°
13°
21
30°
24°
22
35°
25°
23
41°
20°
24
39°
18°
25
33°
6°
26
32°
7°
27
27°
19°
28
33°
9°
29
35°
8°
30
26°
7°
31
25°
13°
1
27°
15°
2
34°
9°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cuba
Cuba's December 2026 forecast shows daily high temperatures ranging from 25° to 48°, with overnight lows between 6° and 31°. The average high for December is 35° with an average low of 18°. 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 Cuba. See also: January | February | March.