S
M
T
W
T
F
S
30
75°
59°
31
72°
55°
1
70°
52°
2
68°
57°
3
72°
63°
4
66°
59°
5
68°
55°
6
72°
54°
7
69°
52°
8
61°
47°
9
60°
44°
10
62°
50°
11
64°
45°
12
64°
57°
13
70°
54°
14
70°
58°
15
66°
52°
16
64°
52°
17
63°
54°
18
64°
53°
19
65°
54°
20
65°
57°
21
65°
56°
22
66°
56°
23
65°
55°
24
65°
54°
25
64°
52°
26
61°
49°
27
61°
52°
28
63°
54°
29
62°
54°
30
63°
52°
1
61°
51°
2
63°
53°
3
63°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cleethorpes
Cleethorpes's September 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 44° and 58°. The average high for September is 64° 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 Cleethorpes. See also: October | November | December.
