S
M
T
W
T
F
S
30
65°
55°
31
68°
55°
1
68°
54°
2
67°
53°
3
64°
55°
4
66°
54°
5
65°
50°
6
66°
54°
7
65°
53°
8
66°
52°
9
63°
51°
10
62°
49°
11
62°
49°
12
62°
51°
13
61°
49°
14
61°
53°
15
62°
52°
16
64°
51°
17
63°
52°
18
62°
49°
19
64°
48°
20
60°
49°
21
62°
50°
22
60°
47°
23
59°
47°
24
59°
50°
25
60°
51°
26
61°
51°
27
61°
46°
28
60°
46°
29
58°
45°
30
59°
45°
1
58°
44°
2
60°
46°
3
59°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Glyn-Neath
Glyn-Neath's September 2026 forecast shows daily high temperatures ranging from 58° to 68°, with overnight lows between 44° and 55°. The average high for September is 62° 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 Glyn-Neath. See also: October | November | December.
