S
M
T
W
T
F
S
29
67°
44°
30
64°
44°
1
61°
47°
2
62°
45°
3
64°
45°
4
62°
46°
5
62°
48°
6
63°
47°
7
65°
46°
8
64°
50°
9
63°
50°
10
64°
51°
11
66°
51°
12
68°
50°
13
67°
51°
14
67°
50°
15
68°
51°
16
68°
51°
17
67°
48°
18
64°
45°
19
60°
51°
20
63°
50°
21
64°
50°
22
61°
48°
23
62°
51°
24
61°
49°
25
63°
46°
26
61°
47°
27
63°
48°
28
62°
45°
29
61°
44°
30
61°
46°
31
61°
47°
1
Hist. Avg.
64°
48°
2
Hist. Avg.
64°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Encinitas
Encinitas's December 2026 forecast shows daily high temperatures ranging from 60° to 68°, with overnight lows between 44° and 51°. The average high for December is 64° with an average low of 48°. 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 Encinitas. See also: January | February | March.
