S
M
T
W
T
F
S
30
71°
60°
31
N/A
1
66°
57°
2
68°
60°
3
69°
61°
4
66°
53°
5
67°
51°
6
69°
56°
7
66°
59°
8
65°
57°
9
65°
55°
10
63°
55°
11
62°
54°
12
62°
51°
13
63°
50°
14
63°
54°
15
62°
54°
16
61°
51°
17
62°
55°
18
64°
55°
19
64°
54°
20
62°
54°
21
64°
55°
22
63°
54°
23
64°
50°
24
60°
48°
25
61°
48°
26
60°
52°
27
61°
51°
28
63°
52°
29
62°
53°
30
63°
53°
1
63°
52°
2
62°
53°
3
63°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Newcastle Emlyn
Newcastle Emlyn's September 2026 forecast shows daily high temperatures ranging from 60° to 69°, with overnight lows between 48° and 61°. The average high for September is 64° with an average low of 54°. 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 Newcastle Emlyn. See also: October | November | December.
