S
M
T
W
T
F
S
30
77°
52°
31
80°
54°
1
82°
54°
2
83°
52°
3
76°
49°
4
74°
46°
5
73°
48°
6
75°
50°
7
78°
49°
8
81°
52°
9
77°
51°
10
80°
51°
11
81°
48°
12
80°
49°
13
76°
44°
14
72°
43°
15
73°
45°
16
73°
47°
17
75°
48°
18
77°
49°
19
75°
40°
20
69°
44°
21
72°
47°
22
Hist. Avg.
73°
45°
23
Hist. Avg.
73°
45°
24
Hist. Avg.
72°
44°
25
Hist. Avg.
72°
44°
26
Hist. Avg.
72°
44°
27
Hist. Avg.
71°
43°
28
Hist. Avg.
71°
43°
29
Hist. Avg.
70°
42°
30
Hist. Avg.
70°
42°
1
Hist. Avg.
70°
42°
2
Hist. Avg.
69°
41°
3
Hist. Avg.
69°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Wellington
Wellington's September 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 40° and 54°. The average high for September is 76° with an average low of 48°. 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.
