S
M
T
W
T
F
S
30
67°
51°
31
65°
50°
1
67°
55°
2
68°
55°
3
63°
52°
4
61°
50°
5
61°
53°
6
60°
54°
7
60°
52°
8
65°
52°
9
66°
53°
10
66°
53°
11
65°
52°
12
62°
51°
13
63°
51°
14
57°
46°
15
57°
45°
16
58°
45°
17
57°
48°
18
61°
51°
19
62°
45°
20
61°
44°
21
55°
44°
22
55°
45°
23
56°
44°
24
56°
46°
25
60°
45°
26
56°
44°
27
55°
43°
28
54°
51°
29
55°
50°
30
59°
43°
1
59°
43°
2
53°
42°
3
53°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Osterode am Harz
Osterode am Harz's September 2026 forecast shows daily high temperatures ranging from 53° to 68°, with overnight lows between 41° and 55°. The average high for September is 60° with an average low of 48°. 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 Osterode am Harz. See also: October | November | December.
