S
M
T
W
T
F
S
30
60°
42°
31
61°
44°
1
60°
40°
2
60°
40°
3
59°
45°
4
59°
42°
5
53°
41°
6
58°
41°
7
59°
44°
8
55°
43°
9
53°
42°
10
51°
41°
11
51°
37°
12
52°
36°
13
51°
36°
14
50°
36°
15
50°
35°
16
52°
34°
17
53°
34°
18
49°
35°
19
49°
36°
20
50°
35°
21
50°
35°
22
51°
34°
23
49°
36°
24
50°
35°
25
49°
35°
26
47°
33°
27
Hist. Avg.
33°
27°
28
Hist. Avg.
33°
27°
29
Hist. Avg.
33°
27°
30
Hist. Avg.
32°
27°
1
Hist. Avg.
32°
27°
2
Hist. Avg.
32°
27°
3
Hist. Avg.
32°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Zermatt
Zermatt's September 2026 forecast shows daily high temperatures ranging from 47° to 61°, with overnight lows between 33° and 45°. The average high for September is 53° with an average low of 38°. 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 Zermatt. See also: October | November | December.
