30.12
tue
tue
Day
36°F
SW 19 mph
Precip.
0%
0%
Night
28°F
SW 19 mph
Precip.
0%
0%
31.12
wed
wed
Day
30°F
SW 14 mph
Precip.
0%
0%
Night
27°F
S 4 mph
Precip.
0%
0%
01.01
thu
thu
Day
34°F
NE 6 mph
Precip.
0%
0%
Night
36°F
NE 12 mph
Precip.
0%
0%
02.01
fri
fri
Day
41°F
NE 9 mph
Precip.
0%
0%
Night
37°F
NE 5 mph
Precip.
100%
100%
03.01
sat
sat
Day
36°F
E 7 mph
Precip.
100%
100%
Night
45°F
N 4 mph
Precip.
0%
0%
04.01
sun
sun
Day
46°F
N 1 mph
Precip.
0%
0%
Night
45°F
NE 6 mph
Precip.
100%
100%
05.01
mon
mon
Day
32°F
S 6 mph
Precip.
100%
100%
Night
30°F
S 12 mph
Precip.
100%
100%
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 December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 48.3°F. The highest and lowest sea temperatures during the month were 50.0°F and 45.7°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 46.3°F. The highest and lowest sea temperatures during the month were 47.3°F and 45.0°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: 21:42
December 31, wednesday
0000
28°F
SW
19 mph
19 mph
0300
27°F
SW
18 mph
18 mph
0600
27°F
SW
16 mph
16 mph
0900
25°F
SW
14 mph
14 mph
1200
30°F
SW
14 mph
14 mph
1500
32°F
SW
12 mph
12 mph
1800
28°F
S
9 mph
9 mph
2100
28°F
S
7 mph
7 mph
