S
M
T
W
T
F
S
29
61°
38°
30
61°
38°
1
63°
39°
2
64°
37°
3
63°
38°
4
65°
39°
5
65°
38°
6
61°
35°
7
61°
37°
8
60°
32°
9
58°
36°
10
59°
37°
11
63°
35°
12
64°
36°
13
63°
39°
14
58°
36°
15
61°
35°
16
62°
35°
17
60°
36°
18
62°
36°
19
63°
39°
20
64°
37°
21
60°
32°
22
57°
33°
23
58°
36°
24
61°
35°
25
60°
35°
26
58°
38°
27
58°
39°
28
Hist. Avg.
61°
34°
29
Hist. Avg.
61°
34°
30
Hist. Avg.
61°
34°
31
Hist. Avg.
61°
34°
1
Hist. Avg.
61°
34°
2
Hist. Avg.
61°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Jacumba
Jacumba's December 2026 forecast shows daily high temperatures ranging from 57° to 65°, with overnight lows between 32° and 39°. The average high for December is 61° with an average low of 36°. 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 Jacumba. See also: January | February | March.
