S
M
T
W
T
F
S
30
70°
63°
31
75°
57°
1
70°
57°
2
72°
54°
3
70°
59°
4
64°
59°
5
66°
55°
6
66°
52°
7
75°
57°
8
73°
59°
9
66°
55°
10
63°
48°
11
68°
45°
12
68°
57°
13
68°
54°
14
64°
50°
15
77°
50°
16
66°
54°
17
64°
54°
18
64°
55°
19
66°
57°
20
66°
55°
21
61°
50°
22
62°
53°
23
63°
55°
24
61°
55°
25
61°
54°
26
63°
53°
27
64°
55°
28
65°
56°
29
63°
55°
30
63°
57°
1
64°
51°
2
62°
57°
3
61°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fehmarnsund
Fehmarnsund's September 2026 forecast shows daily high temperatures ranging from 61° to 65°, with overnight lows between 51° and 57°. The average high for September is 63° with an average low of 55°. 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 Fehmarnsund. See also: October | November | December.
