S
M
T
W
T
F
S
29
80°
69°
30
80°
68°
1
79°
69°
2
77°
68°
3
78°
69°
4
79°
66°
5
80°
69°
6
76°
68°
7
75°
69°
8
77°
68°
9
79°
69°
10
80°
63°
11
80°
62°
12
79°
62°
13
72°
64°
14
74°
61°
15
74°
62°
16
72°
65°
17
73°
67°
18
75°
67°
19
76°
66°
20
78°
67°
21
78°
67°
22
79°
66°
23
78°
67°
24
77°
65°
25
78°
67°
26
78°
65°
27
78°
63°
28
79°
60°
29
Hist. Avg.
77°
62°
30
Hist. Avg.
77°
62°
31
Hist. Avg.
77°
62°
1
Hist. Avg.
77°
62°
2
Hist. Avg.
76°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Miami Beach
Miami Beach's December 2026 forecast shows daily high temperatures ranging from 72° to 80°, with overnight lows between 60° and 69°. The average high for December is 77° 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 Beach. See also: January | February | March.