S
M
T
W
T
F
S
30
69°
56°
31
69°
56°
1
65°
55°
2
64°
53°
3
63°
51°
4
63°
51°
5
64°
54°
6
66°
56°
7
67°
54°
8
67°
51°
9
68°
56°
10
68°
55°
11
66°
54°
12
62°
54°
13
63°
52°
14
63°
48°
15
62°
49°
16
62°
49°
17
63°
51°
18
63°
50°
19
61°
50°
20
61°
49°
21
60°
50°
22
60°
55°
23
64°
53°
24
65°
49°
25
62°
48°
26
61°
48°
27
60°
52°
28
59°
53°
29
61°
51°
30
59°
48°
1
59°
47°
2
58°
46°
3
58°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Southport
Southport's September 2026 forecast shows daily high temperatures ranging from 58° to 69°, with overnight lows between 46° and 56°. The average high for September is 63° with an average low of 51°. 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 Southport. See also: October | November | December.
