S
M
T
W
T
F
S
29
76°
57°
30
75°
57°
1
76°
55°
2
74°
57°
3
71°
56°
4
74°
52°
5
74°
55°
6
69°
57°
7
73°
56°
8
74°
55°
9
74°
57°
10
75°
47°
11
74°
45°
12
66°
45°
13
63°
46°
14
64°
43°
15
64°
44°
16
62°
48°
17
64°
54°
18
70°
54°
19
68°
53°
20
69°
55°
21
72°
54°
22
71°
55°
23
72°
53°
24
73°
48°
25
73°
51°
26
71°
52°
27
72°
47°
28
74°
44°
29
Hist. Avg.
67°
49°
30
Hist. Avg.
67°
49°
31
Hist. Avg.
67°
49°
1
Hist. Avg.
67°
48°
2
Hist. Avg.
67°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in St. Augustine Beach
St. Augustine Beach's December 2026 forecast shows daily high temperatures ranging from 62° to 76°, with overnight lows between 43° and 57°. The average high for December is 71° 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 St. Augustine Beach. See also: January | February | March.
