S
M
T
W
T
F
S
30
77°
64°
31
76°
58°
1
74°
54°
2
72°
55°
3
74°
61°
4
76°
60°
5
72°
53°
6
73°
53°
7
76°
57°
8
75°
56°
9
74°
56°
10
74°
53°
11
71°
55°
12
69°
54°
13
65°
52°
14
65°
50°
15
66°
47°
16
65°
47°
17
66°
52°
18
68°
52°
19
69°
51°
20
67°
46°
21
65°
47°
22
67°
52°
23
69°
53°
24
70°
52°
25
65°
49°
26
66°
49°
27
64°
48°
28
66°
49°
29
65°
48°
30
66°
46°
1
67°
49°
2
65°
44°
3
63°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cottbus
Cottbus's September 2026 forecast shows daily high temperatures ranging from 63° to 76°, with overnight lows between 43° and 61°. The average high for September is 69° with an average low of 52°. 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 Cottbus. See also: October | November | December.