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