S
M
T
W
T
F
S
29
70°
60°
30
71°
64°
1
77°
64°
2
79°
59°
3
77°
56°
4
71°
57°
5
71°
56°
6
70°
55°
7
69°
54°
8
68°
55°
9
69°
56°
10
70°
62°
11
73°
63°
12
74°
61°
13
Hist. Avg.
72°
59°
14
Hist. Avg.
72°
59°
15
Hist. Avg.
72°
59°
16
Hist. Avg.
71°
59°
17
Hist. Avg.
71°
58°
18
Hist. Avg.
71°
58°
19
Hist. Avg.
71°
58°
20
Hist. Avg.
71°
58°
21
Hist. Avg.
71°
58°
22
Hist. Avg.
70°
58°
23
Hist. Avg.
70°
57°
24
Hist. Avg.
70°
57°
25
Hist. Avg.
70°
57°
26
Hist. Avg.
70°
57°
27
Hist. Avg.
70°
57°
28
Hist. Avg.
70°
57°
29
Hist. Avg.
70°
56°
30
Hist. Avg.
69°
56°
31
Hist. Avg.
69°
56°
1
Hist. Avg.
69°
56°
2
Hist. Avg.
69°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in St. Pete Beach
St. Pete Beach's December 2026 forecast shows daily high temperatures ranging from 68° to 79°, with overnight lows between 54° and 64°. The average high for December is 72° with an average low of 59°. 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. Pete Beach. See also: January | February | March.