18.12
thu
thu
Day
48°F
NE 3 mph
Precip.
0%
0%
Night
43°F
NE 3 mph
Precip.
0%
0%
19.12
fri
fri
Day
46°F
NE 2 mph
Precip.
0%
0%
Night
45°F
SW 1 mph
Precip.
61%
61%
20.12
sat
sat
Day
48°F
SW 3 mph
Precip.
0%
0%
Night
45°F
S 2 mph
Precip.
0%
0%
21.12
sun
sun
Day
48°F
SE 1 mph
Precip.
0%
0%
Night
43°F
S 3 mph
Precip.
0%
0%
22.12
mon
mon
Day
46°F
SW 7 mph
Precip.
0%
0%
Night
43°F
SE 2 mph
Precip.
65%
65%
23.12
tue
tue
Day
43°F
NE 6 mph
Precip.
100%
100%
Night
41°F
SW 1 mph
Precip.
0%
0%
24.12
wed
wed
Day
45°F
E 2 mph
Precip.
0%
0%
Night
41°F
S 3 mph
Precip.
29%
29%
25.12
thu
thu
Day
45°F
SW 6 mph
Precip.
0%
0%
Night
39°F
S 5 mph
Precip.
0%
0%
26.12
fri
fri
Day
41°F
NE 2 mph
Precip.
0%
0%
Night
41°F
S 2 mph
Precip.
82%
82%
27.12
sat
sat
Day
43°F
S 2 mph
Precip.
81%
81%
Night
39°F
S 3 mph
Precip.
0%
0%
28.12
sun
sun
Day
43°F
NE 2 mph
Precip.
0%
0%
Night
37°F
S 3 mph
Precip.
0%
0%
29.12
mon
mon
Day
41°F
S 4 mph
Precip.
0%
0%
Night
36°F
S 6 mph
Precip.
54%
54%
30.12
tue
tue
Day
39°F
SW 8 mph
Precip.
75%
75%
Night
37°F
SW 7 mph
Precip.
70%
70%
31.12
wed
wed
Day
37°F
S 7 mph
Precip.
24%
24%
Night
36°F
SW 8 mph
Precip.
70%
70%
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: 21:02
December 19, friday
0000
43°F
NE
3 mph
3 mph
0300
41°F
NE
3 mph
3 mph
0600
41°F
NE
1 mph
1 mph
0900
41°F
N
1 mph
1 mph
1200
46°F
NE
2 mph
2 mph
1500
48°F
W
1 mph
1 mph
1800
46°F
SW
3 mph
3 mph
2100
45°F
SW
4 mph
4 mph
