S
M
T
W
T
F
S
30
72°
51°
31
74°
51°
1
74°
54°
2
73°
54°
3
74°
53°
4
75°
54°
5
75°
54°
6
74°
53°
7
74°
54°
8
73°
54°
9
74°
52°
10
72°
48°
11
68°
48°
12
67°
49°
13
69°
52°
14
71°
52°
15
70°
51°
16
71°
51°
17
70°
48°
18
70°
48°
19
69°
51°
20
69°
49°
21
67°
47°
22
66°
47°
23
67°
50°
24
66°
48°
25
67°
49°
26
66°
50°
27
67°
49°
28
67°
49°
29
66°
48°
30
67°
48°
1
66°
50°
2
66°
50°
3
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Leigh-on-Sea
Leigh-on-Sea's September 2026 forecast shows daily high temperatures ranging from 65° to 75°, with overnight lows between 47° and 54°. The average high for September is 70° 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 Leigh-on-Sea. See also: October | November | December.
