S
M
T
W
T
F
S
30
73°
59°
31
72°
55°
1
70°
54°
2
68°
59°
3
72°
65°
4
72°
53°
5
70°
56°
6
74°
63°
7
74°
57°
8
69°
51°
9
69°
54°
10
64°
56°
11
66°
55°
12
67°
53°
13
66°
56°
14
66°
56°
15
67°
57°
16
61°
49°
17
62°
52°
18
63°
50°
19
63°
53°
20
65°
54°
21
66°
54°
22
66°
53°
23
65°
54°
24
63°
53°
25
66°
54°
26
65°
53°
27
65°
50°
28
64°
51°
29
64°
53°
30
65°
52°
1
59°
48°
2
58°
47°
3
59°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Selsey
Selsey's September 2026 forecast shows daily high temperatures ranging from 58° to 74°, with overnight lows between 46° and 65°. The average high for September is 66° with an average low of 53°. 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 Selsey. See also: October | November | December.
