21.12
sun
sun
Day

46°F
S 4 mph
Precip.
0%
0%
Night

43°F
SW 1 mph
Precip.
0%
0%
22.12
mon
mon
Day

45°F
S 7 mph
Precip.
0%
0%
Night

41°F
NE 5 mph
Precip.
0%
0%
23.12
tue
tue
Day

43°F
SE 2 mph
Precip.
80%
80%
Night

41°F
SW 6 mph
Precip.
0%
0%
24.12
wed
wed
Day

39°F
SW 19 mph
Precip.
82%
82%
Night

36°F
SW 19 mph
Precip.
100%
100%
25.12
thu
thu
Day

34°F
SW 14 mph
Precip.
43%
43%
Night

34°F
SW 14 mph
Precip.
73%
73%
26.12
fri
fri
Day

32°F
SW 15 mph
Precip.
79%
79%
Night

28°F
SW 14 mph
Precip.
88%
88%
27.12
sat
sat
Day

27°F
SW 13 mph
Precip.
70%
70%
Night

25°F
SW 14 mph
Precip.
74%
74%
28.12
sun
sun
Day

28°F
SW 11 mph
Precip.
80%
80%
Night

25°F
SW 21 mph
Precip.
86%
86%
29.12
mon
mon
Day

27°F
SW 21 mph
Precip.
0%
0%
Night

23°F
SW 13 mph
Precip.
0%
0%
30.12
tue
tue
Day

28°F
SW 12 mph
Precip.
0%
0%
Night

25°F
SW 12 mph
Precip.
0%
0%
31.12
wed
wed
Day

27°F
S 6 mph
Precip.
21%
21%
Night

25°F
S 5 mph
Precip.
0%
0%
01.01
thu
thu
Day

30°F
E 1 mph
Precip.
57%
57%
Night

28°F
SW 9 mph
Precip.
74%
74%
02.01
fri
fri
Day

28°F
SW 16 mph
Precip.
0%
0%
Night

25°F
SW 11 mph
Precip.
0%
0%
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: 01:30
December 21, sunday
0300

43°F
SW
4 mph
4 mph
0600

43°F
S
4 mph
4 mph
0900

43°F
SW
4 mph
4 mph
1200

46°F
S
4 mph
4 mph
1500

48°F
S
2 mph
2 mph
1800

45°F
S
3 mph
3 mph
2100

43°F
SW
2 mph
2 mph
December 22, monday
0000

43°F
SW
1 mph
1 mph


























