S
M
T
W
T
F
S
30
70°
56°
31
68°
57°
1
68°
56°
2
69°
52°
3
71°
57°
4
70°
57°
5
72°
55°
6
69°
50°
7
65°
48°
8
64°
49°
9
64°
48°
10
71°
52°
11
70°
55°
12
64°
54°
13
67°
54°
14
69°
53°
15
66°
51°
16
69°
53°
17
69°
52°
18
68°
52°
19
69°
52°
20
70°
53°
21
68°
45°
22
62°
45°
23
67°
48°
24
68°
51°
25
68°
51°
26
67°
44°
27
61°
43°
28
64°
45°
29
66°
44°
30
63°
43°
1
61°
47°
2
65°
49°
3
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kassel
Kassel's September 2026 forecast shows daily high temperatures ranging from 61° to 72°, with overnight lows between 43° and 57°. The average high for September is 67° with an average low of 51°. 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 Kassel. See also: October | November | December.
