20.12
sat
sat
Day

48°F
S 1 mph
Precip.
0%
0%
Night

45°F
SW 4 mph
Precip.
0%
0%
21.12
sun
sun
Day

46°F
S 4 mph
Precip.
0%
0%
Night

43°F
SW 2 mph
Precip.
0%
0%
22.12
mon
mon
Day

46°F
S 2 mph
Precip.
0%
0%
Night

41°F
S 3 mph
Precip.
0%
0%
23.12
tue
tue
Day

45°F
S 4 mph
Precip.
0%
0%
Night

37°F
SW 11 mph
Precip.
87%
87%
24.12
wed
wed
Day

39°F
SW 19 mph
Precip.
82%
82%
Night

30°F
SW 22 mph
Precip.
100%
100%
25.12
thu
thu
Day

30°F
S 11 mph
Precip.
79%
79%
Night

30°F
S 4 mph
Precip.
20%
20%
26.12
fri
fri
Day

36°F
NW 3 mph
Precip.
0%
0%
Night

32°F
S 3 mph
Precip.
0%
0%
27.12
sat
sat
Day

37°F
S 2 mph
Precip.
0%
0%
Night

32°F
NE 2 mph
Precip.
0%
0%
28.12
sun
sun
Day

37°F
SE 2 mph
Precip.
20%
20%
Night

32°F
S 5 mph
Precip.
0%
0%
29.12
mon
mon
Day

36°F
S 4 mph
Precip.
0%
0%
Night

32°F
NW 3 mph
Precip.
0%
0%
30.12
tue
tue
Day

36°F
S 6 mph
Precip.
100%
100%
Night

32°F
SW 9 mph
Precip.
72%
72%
31.12
wed
wed
Day

30°F
SW 22 mph
Precip.
77%
77%
Night

27°F
SW 21 mph
Precip.
77%
77%
01.01
thu
thu
Day

25°F
SW 19 mph
Precip.
71%
71%
Night

21°F
S 14 mph
Precip.
100%
100%
02.01
fri
fri
Day

19°F
SW 19 mph
Precip.
100%
100%
Night

18°F
SW 17 mph
Precip.
100%
100%
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 49.1°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: 11:49
December 20, saturday
1200

48°F
S
1 mph
1 mph
1500

48°F
S
2 mph
2 mph
1800

46°F
SW
3 mph
3 mph
2100

45°F
SW
4 mph
4 mph
December 21, sunday
0000

45°F
SW
4 mph
4 mph
0300

43°F
SW
4 mph
4 mph
0600

41°F
SW
4 mph
4 mph
0900

41°F
SW
4 mph
4 mph



























