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