S
M
T
W
T
F
S
29
75°
64°
30
76°
67°
1
79°
66°
2
82°
63°
3
80°
61°
4
76°
62°
5
76°
61°
6
75°
60°
7
74°
59°
8
73°
60°
9
74°
60°
10
75°
65°
11
76°
64°
12
Hist. Avg.
77°
62°
13
Hist. Avg.
77°
62°
14
Hist. Avg.
77°
62°
15
Hist. Avg.
77°
62°
16
Hist. Avg.
76°
62°
17
Hist. Avg.
76°
61°
18
Hist. Avg.
76°
61°
19
Hist. Avg.
76°
61°
20
Hist. Avg.
76°
61°
21
Hist. Avg.
76°
61°
22
Hist. Avg.
76°
60°
23
Hist. Avg.
76°
60°
24
Hist. Avg.
76°
60°
25
Hist. Avg.
76°
60°
26
Hist. Avg.
75°
60°
27
Hist. Avg.
75°
60°
28
Hist. Avg.
75°
60°
29
Hist. Avg.
75°
59°
30
Hist. Avg.
75°
59°
31
Hist. Avg.
75°
59°
1
Hist. Avg.
75°
59°
2
Hist. Avg.
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Wellington
Wellington's December 2026 forecast shows daily high temperatures ranging from 73° to 82°, with overnight lows between 59° and 67°. The average high for December is 76° with an average low of 62°. 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 Wellington. See also: January | February | March.