S
M
T
W
T
F
S
29
68°
56°
30
73°
57°
1
77°
53°
2
77°
46°
3
78°
45°
4
65°
46°
5
66°
53°
6
68°
55°
7
73°
56°
8
74°
51°
9
63°
52°
10
76°
56°
11
76°
54°
12
Hist. Avg.
68°
49°
13
Hist. Avg.
68°
49°
14
Hist. Avg.
68°
48°
15
Hist. Avg.
68°
48°
16
Hist. Avg.
68°
48°
17
Hist. Avg.
68°
48°
18
Hist. Avg.
67°
48°
19
Hist. Avg.
67°
48°
20
Hist. Avg.
67°
47°
21
Hist. Avg.
67°
47°
22
Hist. Avg.
67°
47°
23
Hist. Avg.
67°
47°
24
Hist. Avg.
66°
47°
25
Hist. Avg.
66°
47°
26
Hist. Avg.
66°
47°
27
Hist. Avg.
66°
46°
28
Hist. Avg.
66°
46°
29
Hist. Avg.
66°
46°
30
Hist. Avg.
66°
46°
31
Hist. Avg.
66°
46°
1
Hist. Avg.
65°
46°
2
Hist. Avg.
65°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Port O'Connor
Port O'Connor's December 2026 forecast shows daily high temperatures ranging from 63° to 78°, with overnight lows between 45° and 57°. The average high for December is 72° with an average low of 52°. 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 Port O'Connor. See also: January | February | March.