S
M
T
W
T
F
S
30
75°
54°
31
74°
55°
1
71°
57°
2
72°
56°
3
74°
56°
4
74°
51°
5
71°
57°
6
73°
53°
7
74°
52°
8
71°
56°
9
69°
52°
10
72°
52°
11
72°
53°
12
71°
56°
13
72°
54°
14
67°
48°
15
68°
52°
16
69°
49°
17
67°
51°
18
65°
52°
19
65°
48°
20
64°
50°
21
64°
53°
22
Hist. Avg.
64°
48°
23
Hist. Avg.
64°
48°
24
Hist. Avg.
64°
48°
25
Hist. Avg.
64°
48°
26
Hist. Avg.
63°
48°
27
Hist. Avg.
63°
48°
28
Hist. Avg.
63°
47°
29
Hist. Avg.
62°
47°
30
Hist. Avg.
62°
47°
1
Hist. Avg.
62°
47°
2
Hist. Avg.
62°
47°
3
Hist. Avg.
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Cologne
Cologne's September 2026 forecast shows daily high temperatures ranging from 64° to 75°, with overnight lows between 48° and 57°. The average high for September is 70° 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 Cologne. See also: October | November | December.
