S
M
T
W
T
F
S
30
86°
69°
31
85°
65°
1
78°
63°
2
78°
62°
3
79°
62°
4
78°
68°
5
79°
69°
6
81°
70°
7
80°
68°
8
83°
67°
9
84°
67°
10
83°
66°
11
85°
68°
12
84°
67°
13
84°
67°
14
83°
64°
15
84°
57°
16
79°
58°
17
74°
57°
18
74°
58°
19
74°
63°
20
78°
64°
21
74°
63°
22
78°
62°
23
79°
63°
24
80°
63°
25
81°
62°
26
80°
63°
27
80°
62°
28
79°
54°
29
79°
56°
30
69°
59°
1
70°
60°
2
72°
59°
3
72°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cape May
Cape May's September 2026 forecast shows daily high temperatures ranging from 69° to 86°, with overnight lows between 54° and 70°. The average high for September is 79° with an average low of 63°. 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 Cape May. See also: October | November | December.
