21.12
sun
sun
Day
46°F
S 5 mph
Precip.
0%
0%
Night
45°F
SW 3 mph
Precip.
0%
0%
22.12
mon
mon
Day
46°F
S 1 mph
Precip.
0%
0%
Night
43°F
SW 4 mph
Precip.
0%
0%
23.12
tue
tue
Day
45°F
S 7 mph
Precip.
0%
0%
Night
37°F
S 7 mph
Precip.
64%
64%
24.12
wed
wed
Day
37°F
SW 17 mph
Precip.
69%
69%
Night
28°F
SW 20 mph
Precip.
67%
67%
25.12
thu
thu
Day
30°F
SW 8 mph
Precip.
0%
0%
Night
28°F
S 7 mph
Precip.
0%
0%
26.12
fri
fri
Day
34°F
S 6 mph
Precip.
0%
0%
Night
30°F
S 9 mph
Precip.
71%
71%
27.12
sat
sat
Day
36°F
SW 13 mph
Precip.
0%
0%
Night
32°F
SW 11 mph
Precip.
82%
82%
28.12
sun
sun
Day
34°F
SW 14 mph
Precip.
23%
23%
Night
30°F
SW 16 mph
Precip.
47%
47%
29.12
mon
mon
Day
32°F
S 6 mph
Precip.
68%
68%
Night
32°F
S 7 mph
Precip.
0%
0%
30.12
tue
tue
Day
34°F
SW 17 mph
Precip.
0%
0%
Night
30°F
SW 13 mph
Precip.
51%
51%
31.12
wed
wed
Day
34°F
S 4 mph
Precip.
0%
0%
Night
30°F
E 2 mph
Precip.
0%
0%
01.01
thu
thu
Day
36°F
E 5 mph
Precip.
0%
0%
Night
30°F
E 5 mph
Precip.
0%
0%
02.01
fri
fri
Day
34°F
E 5 mph
Precip.
0%
0%
Night
32°F
NE 9 mph
Precip.
0%
0%
03.01
sat
sat
Day
39°F
NE 13 mph
Precip.
0%
0%
Night
36°F
E 6 mph
Precip.
71%
71%
sea water
temperature
temperature
| Lake Geneva |
monthly
weather
weather
| Lake Geneva |
current
weather
weather
| Lake Geneva |
7 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 49.0°F. The highest and lowest sea temperatures during the month were 50.0°F and 48.0°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: 12:35
December 21, sunday
1500
46°F
S
5 mph
5 mph
1800
43°F
S
4 mph
4 mph
2100
45°F
SW
3 mph
3 mph
December 22, monday
0000
45°F
SW
3 mph
3 mph
0300
43°F
SW
5 mph
5 mph
0600
43°F
S
1 mph
1 mph
0900
43°F
SW
2 mph
2 mph
1200
46°F
S
1 mph
1 mph
