18.12
thu
thu
Day
48°F
NE 3 mph
Precip.
0%
0%
Night
36°F
N 3 mph
Precip.
0%
0%
19.12
fri
fri
Day
48°F
NE 1 mph
Precip.
0%
0%
Night
39°F
NW 2 mph
Precip.
62%
62%
20.12
sat
sat
Day
50°F
SW 2 mph
Precip.
0%
0%
Night
41°F
SW 2 mph
Precip.
0%
0%
21.12
sun
sun
Day
48°F
SW 2 mph
Precip.
0%
0%
Night
39°F
NW 2 mph
Precip.
0%
0%
22.12
mon
mon
Day
46°F
SW 4 mph
Precip.
0%
0%
Night
37°F
W 2 mph
Precip.
0%
0%
23.12
tue
tue
Day
43°F
NE 1 mph
Precip.
82%
82%
Night
39°F
NE 3 mph
Precip.
100%
100%
24.12
wed
wed
Day
45°F
SW 2 mph
Precip.
0%
0%
Night
39°F
SW 6 mph
Precip.
78%
78%
25.12
thu
thu
Day
43°F
SW 4 mph
Precip.
0%
0%
Night
36°F
SW 5 mph
Precip.
0%
0%
26.12
fri
fri
Day
43°F
SW 4 mph
Precip.
0%
0%
Night
36°F
SW 4 mph
Precip.
0%
0%
27.12
sat
sat
Day
41°F
SW 2 mph
Precip.
76%
76%
Night
39°F
SW 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
43°F
SW 3 mph
Precip.
0%
0%
Night
41°F
SW 3 mph
Precip.
24%
24%
29.12
mon
mon
Day
45°F
SW 3 mph
Precip.
0%
0%
Night
41°F
SW 5 mph
Precip.
59%
59%
30.12
tue
tue
Day
41°F
SW 7 mph
Precip.
55%
55%
Night
37°F
SW 7 mph
Precip.
88%
88%
31.12
wed
wed
Day
34°F
SW 8 mph
Precip.
43%
43%
Night
30°F
SW 7 mph
Precip.
22%
22%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 49.6°F. The highest and lowest sea temperatures during the month were 51.8°F and 47.8°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 47.1°F. The highest and lowest sea temperatures during the month were 48.9°F and 45.7°F.
Air temperature in Geneva, °F
Precipitation total in Geneva, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Geneva
Geneva on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
Geneva
Local time: 09:25
December 18, thursday
1200
48°F
NE
3 mph
3 mph
1500
50°F
NE
4 mph
4 mph
1800
39°F
N
2 mph
2 mph
2100
37°F
N
2 mph
2 mph
December 19, friday
0000
36°F
N
3 mph
3 mph
0300
36°F
NW
1 mph
1 mph
0600
34°F
N
2 mph
2 mph
0900
36°F
NW
1 mph
1 mph
