S
M
T
W
T
F
S
29
62°
49°
30
64°
51°
1
63°
49°
2
66°
42°
3
63°
41°
4
61°
40°
5
60°
41°
6
61°
40°
7
59°
39°
8
60°
40°
9
60°
46°
10
65°
51°
11
70°
48°
12
58°
39°
13
59°
46°
14
Hist. Avg.
66°
48°
15
Hist. Avg.
66°
48°
16
Hist. Avg.
65°
47°
17
Hist. Avg.
65°
47°
18
Hist. Avg.
65°
47°
19
Hist. Avg.
65°
47°
20
Hist. Avg.
65°
47°
21
Hist. Avg.
65°
47°
22
Hist. Avg.
64°
47°
23
Hist. Avg.
64°
46°
24
Hist. Avg.
64°
46°
25
Hist. Avg.
64°
46°
26
Hist. Avg.
64°
46°
27
Hist. Avg.
64°
46°
28
Hist. Avg.
64°
46°
29
Hist. Avg.
64°
46°
30
Hist. Avg.
64°
46°
31
Hist. Avg.
64°
46°
1
Hist. Avg.
63°
46°
2
Hist. Avg.
63°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Blue Mountain Beach
Blue Mountain Beach's December 2026 forecast shows daily high temperatures ranging from 58° to 70°, with overnight lows between 39° and 51°. The average high for December is 62° with an average low of 44°. 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 Blue Mountain Beach. See also: January | February | March.