Current sea water temperature:
+32.0°F
| Minimum sea water temperature in December: | 46.8°F |
| Maximum sea water temperature in December: | 32.0°F |
| Average sea water temperature in December: | 36.1°F |
| more information | |
14 days
forecast
forecast
| Lake Geneva |
monthly
weather
weather
| Lake Geneva |
Sea water temperature for the last 10 days:
| December 16 | 32.0°F | December 11 | 32.0°F |
| December 15 | 32.0°F | December 10 | 32.0°F |
| December 14 | 32.0°F | December 9 | 32.0°F |
| December 13 | 32.0°F | December 8 | 32.0°F |
| December 12 | 32.0°F | December 7 | 32.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Lake Geneva?
Based on the data about daily sea water temperature for the last three years the warmest sea in Lake Geneva was noticed in August, September and July.
Monthly Sea Temperatures in Lake Geneva, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 32.0°F. The highest and lowest sea temperatures during the month were 32.0°F and 32.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 32.0°F. The highest and lowest sea temperatures during the month were 32.0°F and 32.0°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 32.0°F. The highest and lowest sea temperatures during the month were 32.0°F and 32.0°F.
current
weather
weather
| Lake Geneva |
weather in
December
December
| Lake Geneva |
Best time for vacation in Lake Geneva
Lake Geneva on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Lake Geneva
Local time: 07:57
December 16, tuesday
0900
12°F
N
9 mph
9 mph
1200
32°F
NE
14 mph
14 mph
1500
37°F
NE
14 mph
14 mph
1800
32°F
NE
16 mph
16 mph
2100
30°F
NE
18 mph
18 mph
December 17, wednesday
0000
30°F
NE
18 mph
18 mph
0300
30°F
E
17 mph
17 mph
0600
28°F
SE
18 mph
18 mph
