S
M
T
W
T
F
S
30
68°
55°
31
64°
57°
1
66°
57°
2
72°
57°
3
68°
59°
4
66°
55°
5
64°
54°
6
70°
59°
7
64°
54°
8
64°
52°
9
64°
53°
10
64°
48°
11
63°
54°
12
67°
55°
13
64°
55°
14
67°
57°
15
63°
52°
16
62°
52°
17
63°
52°
18
63°
53°
19
64°
52°
20
64°
53°
21
63°
54°
22
63°
54°
23
63°
52°
24
62°
51°
25
59°
51°
26
58°
52°
27
62°
52°
28
60°
50°
29
57°
49°
30
57°
51°
1
58°
51°
2
58°
50°
3
59°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ballynahinch
Ballynahinch's September 2026 forecast shows daily high temperatures ranging from 57° to 67°, with overnight lows between 48° and 57°. The average high for September is 62° with an average low of 52°. 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 Ballynahinch. See also: October | November | December.
