S
M
T
W
T
F
S
30
73°
52°
31
76°
57°
1
72°
53°
2
79°
57°
3
80°
57°
4
82°
53°
5
77°
49°
6
75°
48°
7
74°
54°
8
76°
55°
9
78°
47°
10
70°
46°
11
69°
44°
12
68°
46°
13
69°
50°
14
68°
44°
15
69°
42°
16
66°
43°
17
66°
41°
18
67°
42°
19
66°
42°
20
66°
43°
21
67°
44°
22
68°
50°
23
70°
47°
24
73°
51°
25
73°
49°
26
71°
40°
27
65°
46°
28
64°
49°
29
63°
46°
30
67°
45°
1
65°
46°
2
61°
38°
3
60°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wellington
Wellington's September 2026 forecast shows daily high temperatures ranging from 60° to 82°, with overnight lows between 38° and 57°. The average high for September is 70° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Wellington. See also: October | November | December.
