S
M
T
W
T
F
S
30
68°
62°
31
70°
60°
1
67°
56°
2
70°
54°
3
70°
61°
4
67°
61°
5
64°
56°
6
68°
52°
7
81°
56°
8
69°
59°
9
63°
55°
10
64°
51°
11
65°
49°
12
68°
54°
13
66°
55°
14
67°
51°
15
77°
58°
16
65°
54°
17
64°
53°
18
64°
55°
19
66°
58°
20
64°
54°
21
63°
53°
22
64°
48°
23
N/A
24
N/A
25
65°
52°
26
64°
51°
27
71°
58°
28
70°
58°
29
75°
59°
30
75°
58°
1
70°
56°
2
67°
55°
3
67°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Bremerhaven
Bremerhaven's September 2026 forecast shows daily high temperatures ranging from 64° to 75°, with overnight lows between 51° and 59°. The average high for September is 69° with an average low of 56°. 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 Bremerhaven. See also: October | November | December.
