S
M
T
W
T
F
S
30
70°
54°
31
63°
47°
1
72°
51°
2
75°
52°
3
73°
58°
4
79°
57°
5
75°
58°
6
68°
58°
7
60°
54°
8
62°
48°
9
71°
54°
10
73°
49°
11
57°
44°
12
52°
41°
13
57°
42°
14
57°
41°
15
58°
42°
16
55°
36°
17
57°
40°
18
59°
44°
19
63°
43°
20
66°
44°
21
61°
40°
22
57°
46°
23
57°
45°
24
61°
46°
25
66°
47°
26
67°
47°
27
66°
45°
28
63°
43°
29
56°
42°
30
52°
41°
1
50°
38°
2
51°
42°
3
59°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Wynyard
Wynyard's September 2026 forecast shows daily high temperatures ranging from 50° to 73°, with overnight lows between 36° and 54°. The average high for September is 60° with an average low of 43°. 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 Wynyard. See also: October | November | December.