S
M
T
W
T
F
S
30
68°
55°
31
68°
55°
1
65°
54°
2
66°
55°
3
67°
53°
4
66°
51°
5
66°
55°
6
65°
54°
7
64°
53°
8
64°
55°
9
67°
54°
10
66°
53°
11
63°
51°
12
63°
49°
13
64°
53°
14
66°
53°
15
67°
54°
16
66°
53°
17
62°
50°
18
63°
52°
19
65°
53°
20
66°
52°
21
66°
50°
22
64°
47°
23
61°
53°
24
65°
51°
25
61°
51°
26
63°
50°
27
64°
48°
28
64°
46°
29
64°
45°
30
63°
49°
1
64°
49°
2
63°
47°
3
62°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Abergavenny/y Fenni
Abergavenny/y Fenni's September 2026 forecast shows daily high temperatures ranging from 61° to 68°, with overnight lows between 45° and 55°. The average high for September is 65° with an average low of 51°. 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 Abergavenny/y Fenni. See also: October | November | December.
