S
M
T
W
T
F
S
30
69°
52°
31
71°
52°
1
71°
55°
2
70°
56°
3
71°
55°
4
71°
56°
5
72°
55°
6
71°
56°
7
71°
55°
8
70°
56°
9
70°
51°
10
69°
50°
11
66°
50°
12
67°
53°
13
68°
54°
14
69°
55°
15
69°
54°
16
68°
53°
17
69°
51°
18
69°
53°
19
68°
51°
20
65°
48°
21
66°
47°
22
66°
53°
23
62°
53°
24
64°
50°
25
66°
51°
26
65°
52°
27
66°
51°
28
66°
51°
29
65°
50°
30
65°
51°
1
64°
52°
2
65°
52°
3
64°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lyme Regis
Lyme Regis's September 2026 forecast shows daily high temperatures ranging from 62° to 72°, with overnight lows between 47° and 56°. The average high for September is 68° with an average low of 52°. 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 Lyme Regis. See also: October | November | December.
