S
M
T
W
T
F
S
29
45°
38°
30
46°
37°
1
47°
41°
2
50°
42°
3
49°
35°
4
44°
34°
5
43°
34°
6
43°
35°
7
44°
35°
8
44°
36°
9
43°
35°
10
43°
33°
11
48°
39°
12
49°
39°
13
47°
40°
14
48°
39°
15
48°
39°
16
47°
38°
17
46°
39°
18
48°
39°
19
48°
38°
20
47°
39°
21
48°
39°
22
48°
38°
23
49°
38°
24
48°
37°
25
46°
38°
26
47°
39°
27
47°
40°
28
48°
39°
29
49°
39°
30
48°
40°
31
49°
40°
1
48°
39°
2
48°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Southport
Southport's December 2026 forecast shows daily high temperatures ranging from 43° to 50°, with overnight lows between 33° and 42°. The average high for December is 47° 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 Southport. See also: January | February | March.
