S
M
T
W
T
F
S
30
70°
52°
31
71°
56°
1
70°
53°
2
66°
51°
3
66°
52°
4
65°
51°
5
64°
50°
6
64°
49°
7
65°
49°
8
70°
50°
9
71°
50°
10
71°
51°
11
70°
55°
12
66°
54°
13
67°
53°
14
64°
54°
15
64°
57°
16
69°
56°
17
69°
55°
18
66°
55°
19
69°
48°
20
66°
47°
21
62°
46°
22
61°
46°
23
61°
47°
24
62°
48°
25
62°
48°
26
60°
47°
27
61°
46°
28
61°
52°
29
62°
53°
30
63°
51°
1
64°
46°
2
60°
45°
3
59°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Zurich
Zurich's September 2026 forecast shows daily high temperatures ranging from 59° to 71°, with overnight lows between 44° and 57°. The average high for September is 65° with an average low of 50°. 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 Zurich. See also: October | November | December.