S
M
T
W
T
F
S
30
66°
52°
31
66°
48°
1
73°
46°
2
70°
43°
3
71°
50°
4
75°
51°
5
72°
50°
6
64°
51°
7
67°
48°
8
66°
41°
9
70°
49°
10
72°
52°
11
72°
44°
12
66°
42°
13
68°
48°
14
65°
42°
15
63°
39°
16
62°
40°
17
57°
36°
18
56°
35°
19
58°
37°
20
62°
43°
21
63°
39°
22
56°
37°
23
56°
33°
24
54°
34°
25
55°
32°
26
52°
33°
27
54°
34°
28
55°
43°
29
59°
38°
30
55°
36°
1
54°
33°
2
Hist. Avg.
59°
36°
3
Hist. Avg.
58°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Duck Bay
Duck Bay's September 2026 forecast shows daily high temperatures ranging from 52° to 75°, with overnight lows between 32° and 52°. The average high for September is 63° with an average low of 42°. 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 Duck Bay. See also: October | November | December.