S
M
T
W
T
F
S
30
60°
46°
1
67°
46°
2
63°
50°
3
60°
48°
4
62°
50°
5
70°
51°
6
73°
55°
7
74°
57°
8
71°
56°
9
75°
57°
10
79°
58°
11
75°
55°
12
64°
53°
13
55°
49°
14
57°
50°
15
67°
49°
16
74°
60°
17
65°
56°
18
70°
56°
19
62°
49°
20
64°
54°
21
61°
58°
22
63°
50°
23
66°
57°
24
64°
58°
25
63°
56°
26
61°
55°
27
59°
50°
28
61°
50°
29
69°
48°
30
68°
55°
31
63°
56°
1
63°
58°
2
66°
50°
3
62°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Morro Bay
Morro Bay's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Morro Bay. See also: January | February | March.
