S
M
T
W
T
F
S
29
79°
68°
30
83°
66°
1
83°
67°
2
82°
66°
3
81°
65°
4
83°
61°
5
82°
58°
6
79°
57°
7
73°
58°
8
73°
59°
9
76°
59°
10
77°
57°
11
74°
57°
12
73°
58°
13
74°
58°
14
75°
57°
15
74°
58°
16
73°
59°
17
74°
59°
18
74°
58°
19
75°
58°
20
74°
60°
21
75°
63°
22
77°
63°
23
80°
64°
24
80°
62°
25
79°
61°
26
79°
62°
27
78°
62°
28
79°
61°
29
79°
62°
30
80°
62°
31
80°
61°
1
79°
60°
2
78°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Delray Beach
Delray Beach's December 2026 forecast shows daily high temperatures ranging from 73° to 83°, with overnight lows between 57° and 68°. The average high for December is 78° with an average low of 61°. 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 Delray Beach. See also: January | February | March.