S
M
T
W
T
F
S
30
75°
64°
31
70°
60°
1
72°
58°
2
74°
55°
3
73°
58°
4
80°
64°
5
71°
57°
6
74°
49°
7
85°
57°
8
82°
56°
9
67°
48°
10
67°
43°
11
69°
48°
12
71°
46°
13
72°
53°
14
72°
49°
15
76°
54°
16
70°
50°
17
67°
49°
18
68°
47°
19
70°
48°
20
67°
51°
21
66°
52°
22
67°
53°
23
68°
52°
24
69°
52°
25
69°
48°
26
66°
45°
27
62°
43°
28
62°
43°
29
63°
44°
30
62°
50°
1
62°
46°
2
60°
44°
3
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Braunfels
Braunfels's September 2026 forecast shows daily high temperatures ranging from 60° to 85°, with overnight lows between 43° and 57°. The average high for September is 68° with an average low of 49°. 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 Braunfels. See also: October | November | December.
