S
M
T
W
T
F
S
30
73°
55°
31
72°
56°
1
71°
58°
2
69°
57°
3
72°
56°
4
72°
52°
5
69°
55°
6
71°
52°
7
71°
54°
8
68°
56°
9
67°
52°
10
69°
54°
11
70°
52°
12
70°
56°
13
69°
50°
14
67°
48°
15
66°
52°
16
67°
48°
17
63°
49°
18
62°
54°
19
63°
46°
20
62°
48°
21
Hist. Avg.
62°
51°
22
Hist. Avg.
62°
51°
23
Hist. Avg.
62°
50°
24
Hist. Avg.
62°
50°
25
Hist. Avg.
62°
50°
26
Hist. Avg.
61°
50°
27
Hist. Avg.
61°
50°
28
Hist. Avg.
61°
50°
29
Hist. Avg.
61°
49°
30
Hist. Avg.
60°
49°
1
Hist. Avg.
60°
49°
2
Hist. Avg.
60°
49°
3
Hist. Avg.
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Dortmund
Dortmund's September 2026 forecast shows daily high temperatures ranging from 62° to 73°, with overnight lows between 46° and 58°. The average high for September is 68° with an average low of 53°. 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 Dortmund. See also: October | November | December.
