S
M
T
W
T
F
S
30
80°
66°
31
82°
68°
1
85°
69°
2
85°
69°
3
86°
63°
4
85°
61°
5
78°
61°
6
78°
67°
7
81°
67°
8
82°
66°
9
83°
67°
10
80°
66°
11
83°
65°
12
83°
66°
13
82°
66°
14
82°
66°
15
83°
65°
16
83°
65°
17
82°
66°
18
81°
60°
19
81°
58°
20
77°
56°
21
74°
56°
22
73°
63°
23
75°
60°
24
79°
56°
25
72°
55°
26
72°
57°
27
73°
56°
28
77°
60°
29
76°
59°
30
78°
59°
1
76°
60°
2
75°
56°
3
71°
59°
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 71° to 86°, with overnight lows between 55° and 69°. The average high for September is 79° 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 September weather will actually feel in Cape May. See also: October | November | December.
