S
M
T
W
T
F
S
29
86°
70°
30
85°
70°
1
86°
69°
2
86°
70°
3
85°
70°
4
86°
68°
5
86°
69°
6
85°
70°
7
86°
70°
8
86°
69°
9
85°
69°
10
86°
67°
11
85°
68°
12
86°
69°
13
85°
68°
14
85°
69°
15
84°
68°
16
84°
67°
17
85°
67°
18
84°
69°
19
85°
69°
20
86°
67°
21
86°
68°
22
84°
67°
23
85°
68°
24
84°
67°
25
85°
68°
26
86°
67°
27
84°
68°
28
85°
67°
29
85°
68°
30
86°
68°
31
Hist. Avg.
84°
68°
1
Hist. Avg.
84°
68°
2
Hist. Avg.
84°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Monte Mar
Monte Mar's December 2026 forecast shows daily high temperatures ranging from 84° to 86°, with overnight lows between 67° and 70°. The average high for December is 85° with an average low of 68°. 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 Monte Mar. See also: January | February | March.
