28.08
fri
fri
Day
63°F
E 6 mph
Precip.
39%
39%
Night
55°F
NW 4 mph
Precip.
12%
12%
29.08
sat
sat
Day
64°F
E 6 mph
Precip.
5%
5%
Night
61°F
NW 5 mph
Precip.
7%
7%
30.08
sun
sun
Day
68°F
E 4 mph
Precip.
2%
2%
Night
64°F
NW 6 mph
Precip.
17%
17%
31.08
mon
mon
Day
66°F
E 6 mph
Precip.
11%
11%
Night
59°F
W 4 mph
Precip.
9%
9%
01.09
tue
tue
Day
66°F
SE 4 mph
Precip.
3%
3%
Night
64°F
NW 3 mph
Precip.
10%
10%
02.09
wed
wed
Day
57°F
NE 2 mph
Precip.
48%
48%
Night
57°F
W 4 mph
Precip.
14%
14%
03.09
thu
thu
Day
61°F
NW 6 mph
Precip.
8%
8%
Night
57°F
W 4 mph
Precip.
7%
7%
sea water
temperature
temperature
| Lake Geneva |
monthly
weather
weather
| Lake Geneva |
current
weather
weather
| Lake Geneva |
14 days
forecast
forecast
| Lake Geneva |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 75.9°F. The highest and lowest sea temperatures during the month were 77.7°F and 73.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 68.0°F. The highest and lowest sea temperatures during the month were 71.2°F and 65.1°F.
Air temperature in Lake Geneva, °F
Precipitation total in Lake Geneva, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Lake Geneva
Lake Geneva on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
Lake Geneva
Local time: 10:09
August 28, friday
1200
63°F
E
6 mph
6 mph
1500
55°F
NE
4 mph
4 mph
1800
57°F
N
4 mph
4 mph
2100
59°F
NW
4 mph
4 mph
August 29, saturday
0000
55°F
NW
4 mph
4 mph
0300
54°F
NW
4 mph
4 mph
0600
54°F
NW
4 mph
4 mph
0900
55°F
N
2 mph
2 mph
