S
M
T
W
T
F
S
29
50°
33°
30
49°
27°
1
41°
20°
2
35°
19°
3
41°
32°
4
44°
31°
5
40°
31°
6
35°
26°
7
34°
20°
8
32°
21°
9
37°
24°
10
40°
28°
11
42°
28°
12
46°
27°
13
43°
29°
14
38°
25°
15
40°
24°
16
39°
23°
17
36°
18°
18
33°
14°
19
31°
12°
20
29°
10°
21
27°
24°
22
34°
15°
23
34°
18°
24
33°
10°
25
29°
19°
26
29°
25°
27
34°
22°
28
34°
17°
29
32°
15°
30
29°
17°
31
28°
8°
1
29°
5°
2
25°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Conception
Conception's December 2026 forecast shows daily high temperatures ranging from 25° to 50°, with overnight lows between 5° and 33°. The average high for December is 36° with an average low of 21°. 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 Conception. See also: January | February | March.
