S
M
T
W
T
F
S
30
46°
35°
1
53°
36°
2
51°
42°
3
43°
38°
4
46°
39°
5
46°
34°
6
53°
43°
7
57°
40°
8
55°
46°
9
58°
49°
10
54°
46°
11
52°
45°
12
52°
41°
13
47°
38°
14
51°
44°
15
52°
48°
16
50°
37°
17
50°
33°
18
52°
47°
19
49°
41°
20
46°
36°
21
48°
44°
22
48°
46°
23
46°
43°
24
45°
42°
25
43°
42°
26
45°
42°
27
46°
44°
28
45°
44°
29
45°
43°
30
44°
36°
31
39°
31°
1
40°
35°
2
38°
31°
3
35°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Cleethorpes
Cleethorpes'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 Cleethorpes. See also: January | February | March.