S
M
T
W
T
F
S
29
53°
35°
30
45°
31°
1
43°
33°
2
43°
38°
3
48°
39°
4
55°
37°
5
52°
36°
6
46°
35°
7
47°
36°
8
47°
37°
9
50°
33°
10
45°
34°
11
Hist. Avg.
45°
32°
12
Hist. Avg.
45°
32°
13
Hist. Avg.
45°
32°
14
Hist. Avg.
44°
32°
15
Hist. Avg.
44°
31°
16
Hist. Avg.
44°
31°
17
Hist. Avg.
44°
31°
18
Hist. Avg.
43°
31°
19
Hist. Avg.
43°
30°
20
Hist. Avg.
43°
30°
21
Hist. Avg.
43°
30°
22
Hist. Avg.
42°
30°
23
Hist. Avg.
42°
29°
24
Hist. Avg.
42°
29°
25
Hist. Avg.
42°
29°
26
Hist. Avg.
42°
28°
27
Hist. Avg.
41°
28°
28
Hist. Avg.
41°
28°
29
Hist. Avg.
41°
28°
30
Hist. Avg.
41°
28°
31
Hist. Avg.
41°
27°
1
Hist. Avg.
40°
27°
2
Hist. Avg.
40°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in East Harwich
East Harwich's December 2026 forecast shows daily high temperatures ranging from 43° to 55°, with overnight lows between 31° and 39°. The average high for December is 48° with an average low of 35°. 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 East Harwich. See also: January | February | March.
