S
M
T
W
T
F
S
30
71°
52°
31
76°
46°
1
70°
48°
2
69°
46°
3
70°
45°
4
70°
46°
5
71°
45°
6
68°
44°
7
68°
47°
8
Hist. Avg.
70°
51°
9
Hist. Avg.
70°
51°
10
Hist. Avg.
69°
51°
11
Hist. Avg.
69°
51°
12
Hist. Avg.
69°
50°
13
Hist. Avg.
68°
50°
14
Hist. Avg.
68°
50°
15
Hist. Avg.
68°
50°
16
Hist. Avg.
67°
50°
17
Hist. Avg.
67°
49°
18
Hist. Avg.
67°
49°
19
Hist. Avg.
66°
49°
20
Hist. Avg.
66°
49°
21
Hist. Avg.
66°
49°
22
Hist. Avg.
65°
49°
23
Hist. Avg.
65°
48°
24
Hist. Avg.
65°
48°
25
Hist. Avg.
64°
48°
26
Hist. Avg.
64°
48°
27
Hist. Avg.
64°
48°
28
Hist. Avg.
63°
48°
29
Hist. Avg.
63°
47°
30
Hist. Avg.
63°
47°
1
Hist. Avg.
62°
47°
2
Hist. Avg.
62°
47°
3
Hist. Avg.
62°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Lausanne
Lausanne's September 2026 forecast shows daily high temperatures ranging from 68° to 76°, with overnight lows between 44° and 52°. The average high for September is 70° with an average low of 47°. 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 Lausanne. See also: October | November | December.
