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