S
M
T
W
T
F
S
30
82°
55°
31
77°
55°
1
77°
50°
2
81°
50°
3
81°
54°
4
91°
54°
5
79°
59°
6
82°
55°
7
84°
57°
8
95°
57°
9
58°
47°
10
60°
46°
11
65°
44°
12
68°
47°
13
69°
51°
14
71°
48°
15
72°
50°
16
67°
47°
17
64°
45°
18
68°
46°
19
67°
47°
20
68°
47°
21
66°
46°
22
66°
43°
23
67°
42°
24
66°
47°
25
66°
44°
26
59°
40°
27
57°
44°
28
64°
45°
29
64°
39°
30
56°
39°
1
55°
38°
2
56°
38°
3
58°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Diemtigen
Diemtigen's September 2026 forecast shows daily high temperatures ranging from 55° to 72°, with overnight lows between 38° and 51°. The average high for September is 64° with an average low of 44°. 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 Diemtigen. See also: October | November | December.
