S
M
T
W
T
F
S
29
82°
73°
30
84°
70°
1
84°
70°
2
83°
71°
3
84°
71°
4
84°
70°
5
83°
71°
6
83°
71°
7
82°
69°
8
83°
69°
9
81°
70°
10
82°
70°
11
82°
69°
12
83°
70°
13
82°
69°
14
83°
70°
15
84°
69°
16
83°
70°
17
84°
70°
18
84°
69°
19
83°
68°
20
81°
69°
21
81°
68°
22
82°
68°
23
81°
69°
24
81°
69°
25
82°
68°
26
83°
69°
27
82°
68°
28
81°
68°
29
82°
67°
30
80°
68°
31
80°
68°
1
81°
67°
2
80°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Manatí
Manatí's December 2026 forecast shows daily high temperatures ranging from 80° to 84°, with overnight lows between 67° and 73°. The average high for December is 82° with an average low of 69°. 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 Manatí. See also: January | February | March.