S
M
T
W
T
F
S
30
66°
54°
31
67°
53°
1
67°
57°
2
66°
57°
3
67°
56°
4
67°
57°
5
68°
56°
6
68°
57°
7
67°
57°
8
67°
56°
9
66°
52°
10
65°
51°
11
62°
50°
12
64°
54°
13
65°
55°
14
65°
55°
15
64°
54°
16
65°
54°
17
66°
53°
18
66°
54°
19
65°
51°
20
62°
49°
21
63°
49°
22
62°
54°
23
60°
54°
24
61°
53°
25
62°
52°
26
63°
53°
27
62°
52°
28
63°
52°
29
63°
51°
30
62°
52°
1
62°
53°
2
63°
52°
3
62°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Capel Cynon
Capel Cynon's September 2026 forecast shows daily high temperatures ranging from 60° to 68°, with overnight lows between 49° and 57°. 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 Capel Cynon. See also: October | November | December.
