S
M
T
W
T
F
S
29
49°
32°
30
48°
31°
1
48°
32°
2
49°
32°
3
48°
38°
4
49°
40°
5
52°
43°
6
50°
40°
7
48°
38°
8
47°
38°
9
47°
36°
10
48°
36°
11
57°
43°
12
60°
41°
13
62°
32°
14
63°
31°
15
46°
32°
16
47°
28°
17
47°
32°
18
48°
41°
19
55°
42°
20
59°
42°
21
59°
40°
22
60°
40°
23
58°
41°
24
59°
40°
25
62°
34°
26
62°
28°
27
47°
31°
28
48°
37°
29
53°
39°
30
57°
40°
31
57°
42°
1
59°
43°
2
59°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Suffolk
Suffolk's December 2026 forecast shows daily high temperatures ranging from 46° to 63°, with overnight lows between 28° and 43°. The average high for December is 53° with an average low of 37°. 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 Suffolk. See also: January | February | March.