Measurements:
°C
°F
CURRENT WEATHER
23:00
Lake Geneva
62°F
N 6 mph
Feels like: 64°F
Precip: 66%
World Resorts Switzerland Lake Geneva Weather

14 Day Weather Forecast

09.08
tue
DAY
82°F
NE 7 mph
precip
1%
NIGHT
62°F
N 6 mph
precip
66%
09.09
wed
DAY
50°F
S 5 mph
precip
88%
NIGHT
48°F
S 6 mph
precip
33%
09.10
thu
DAY
54°F
SE 4 mph
precip
29%
NIGHT
56°F
W 2 mph
precip
15%
09.11
fri
DAY
58°F
S 4 mph
precip
18%
NIGHT
58°F
W 5 mph
precip
24%
09.12
sat
DAY
60°F
S 7 mph
precip
27%
NIGHT
58°F
W 4 mph
precip
5%
09.13
sun
DAY
64°F
S 5 mph
precip
2%
NIGHT
62°F
W 4 mph
precip
4%
09.14
mon
DAY
66°F
NE 7 mph
precip
6%
NIGHT
60°F
W 4 mph
precip
9%
09.15
tue
DAY
68°F
SE 4 mph
precip
4%
NIGHT
64°F
NW 5 mph
precip
6%
09.16
wed
DAY
72°F
SE 4 mph
precip
1%
NIGHT
64°F
W 6 mph
precip
6%
09.17
thu
DAY
56°F
S 9 mph
precip
31%
NIGHT
60°F
W 4 mph
precip
8%
09.18
fri
DAY
62°F
S 6 mph
precip
4%
NIGHT
56°F
SW 2 mph
precip
12%
09.19
sat
DAY
62°F
SE 4 mph
precip
3%
NIGHT
58°F
W 3 mph
precip
8%
09.20
sun
DAY
66°F
SE 4 mph
precip
2%
NIGHT
62°F
NW 4 mph
precip
9%
09.21
mon
DAY
66°F
SE 4 mph
precip
3%
NIGHT
66°F
W 4 mph
precip
4%

Lake Geneva Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Lake Geneva was 70.0°F. The maximum and minimum values were 66.8°F and 73.6°F respectively.

Lake Geneva on the Weather Map

Best Time to Visit Lake Geneva
The most sunny months:
August 18 days
July 16 days
September 16 days
The most warm months:
August 77.2 °F
July 76.8 °F
June 72.0 °F
Warmest sea temperature:
August 72.5 °F
July 71.1 °F
September 67.6 °F
The most cold months:
January 37.4 °F
December 40.2 °F
February 41.2 °F
The most rainy months:
June 7 days
May 7 days
December 6 days
The most windy months:
January 6 mph
February 6 mph
December 6 mph
more details
Switzerland Resorts:
NAME
F°
Berne +66
Geneva +68
Gstaad +54
Lake Geneva +62
Lausanne +72
Lucerne +64
Lugano +66
Montreux +58
Spitz +64
St Gallen +74
Verbier +48
Vevey +58
Winterthur +66
Zermatt +42
Zurich +66
all resorts
24 Hours Weather Forecast
Lake Geneva
Local time: 23:00
09 sep, wednesday
0000 62°F
N
6 mph
0300 62°F
NW
5 mph
0600 60°F
N
5 mph
0900 54°F
E
2 mph
1200 50°F
S
5 mph
1500 50°F
S
2 mph
1800 52°F
SW
3 mph
2100 54°F
W
5 mph