S
M
T
W
T
F
S
29
75°
70°
30
75°
70°
1
76°
69°
2
75°
70°
3
75°
70°
4
77°
69°
5
77°
69°
6
78°
70°
7
77°
69°
8
78°
68°
9
75°
69°
10
74°
67°
11
74°
63°
12
72°
66°
13
74°
69°
14
74°
69°
15
77°
68°
16
77°
66°
17
73°
63°
18
72°
63°
19
73°
67°
20
74°
68°
21
75°
61°
22
71°
64°
23
73°
69°
24
78°
61°
25
80°
59°
26
73°
60°
27
71°
64°
28
72°
66°
29
74°
66°
30
77°
61°
31
77°
66°
1
73°
67°
2
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Miami
Miami's December 2026 forecast shows daily high temperatures ranging from 71° to 80°, with overnight lows between 59° and 70°. The average high for December is 75° with an average low of 66°. 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 Miami. See also: January | February | March.
