S
M
T
W
T
F
S
29
87°
68°
30
87°
67°
1
85°
67°
2
85°
66°
3
86°
68°
4
87°
68°
5
86°
67°
6
85°
68°
7
86°
68°
8
86°
67°
9
85°
68°
10
86°
68°
11
89°
65°
12
90°
66°
13
89°
66°
14
89°
65°
15
88°
66°
16
88°
66°
17
87°
65°
18
88°
66°
19
89°
67°
20
89°
66°
21
88°
66°
22
88°
65°
23
87°
66°
24
88°
65°
25
90°
66°
26
89°
65°
27
89°
66°
28
88°
66°
29
89°
65°
30
88°
65°
31
87°
64°
1
86°
66°
2
87°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Ponce
Ponce's December 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 64° and 68°. The average high for December is 87° with an average low of 66°. 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 Ponce. See also: January | February | March.