S
M
T
W
T
F
S
29
46°
39°
30
55°
33°
1
55°
30°
2
47°
32°
3
53°
25°
4
51°
24°
5
39°
23°
6
38°
22°
7
38°
22°
8
40°
25°
9
40°
28°
10
51°
29°
11
41°
27°
12
40°
26°
13
38°
26°
14
38°
24°
15
37°
20°
16
36°
17°
17
34°
20°
18
34°
31°
19
41°
33°
20
43°
26°
21
48°
27°
22
41°
35°
23
49°
36°
24
50°
32°
25
49°
29°
26
47°
29°
27
43°
31°
28
45°
33°
29
48°
34°
30
48°
35°
31
50°
31°
1
50°
29°
2
47°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Manchester
Manchester's December 2026 forecast shows daily high temperatures ranging from 34° to 55°, with overnight lows between 17° and 39°. The average high for December is 44° with an average low of 28°. 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 Manchester. See also: January | February | March.