S
M
T
W
T
F
S
29
52°
35°
30
49°
34°
1
48°
37°
2
49°
44°
3
59°
40°
4
61°
32°
5
53°
35°
6
47°
37°
7
52°
40°
8
56°
41°
9
52°
32°
10
55°
41°
11
56°
42°
12
Hist. Avg.
50°
33°
13
Hist. Avg.
50°
32°
14
Hist. Avg.
50°
32°
15
Hist. Avg.
50°
32°
16
Hist. Avg.
49°
32°
17
Hist. Avg.
49°
32°
18
Hist. Avg.
49°
31°
19
Hist. Avg.
49°
31°
20
Hist. Avg.
49°
31°
21
Hist. Avg.
48°
31°
22
Hist. Avg.
48°
31°
23
Hist. Avg.
48°
30°
24
Hist. Avg.
48°
30°
25
Hist. Avg.
48°
30°
26
Hist. Avg.
47°
30°
27
Hist. Avg.
47°
30°
28
Hist. Avg.
47°
30°
29
Hist. Avg.
47°
30°
30
Hist. Avg.
47°
29°
31
Hist. Avg.
46°
29°
1
Hist. Avg.
46°
29°
2
Hist. Avg.
46°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Bethany Beach
Bethany Beach's December 2026 forecast shows daily high temperatures ranging from 47° to 61°, with overnight lows between 32° and 44°. The average high for December is 53° with an average low of 38°. 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 Bethany Beach. See also: January | February | March.
