S
M
T
W
T
F
S
30
71°
50°
31
70°
49°
1
72°
50°
2
74°
53°
3
74°
54°
4
72°
49°
5
69°
48°
6
68°
49°
7
70°
51°
8
73°
49°
9
73°
53°
10
72°
53°
11
73°
54°
12
73°
50°
13
70°
46°
14
67°
50°
15
66°
51°
16
67°
52°
17
67°
52°
18
70°
51°
19
69°
52°
20
69°
53°
21
71°
48°
22
69°
46°
23
64°
44°
24
64°
45°
25
65°
47°
26
66°
47°
27
65°
46°
28
62°
51°
29
66°
50°
30
67°
50°
1
66°
49°
2
67°
49°
3
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Southminster
Southminster's September 2026 forecast shows daily high temperatures ranging from 61° to 74°, with overnight lows between 42° and 54°. The average high for September is 69° with an average low of 50°. 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 Southminster. See also: October | November | December.
