Current sea water temperature:
+32.0°F
| Minimum sea water temperature in January: | 41.9°F |
| Maximum sea water temperature in January: | 32.0°F |
| Average sea water temperature in January: | 33.6°F |
| more information | |
14 days
forecast
forecast
| Lake Geneva |
monthly
weather
weather
| Lake Geneva |
Sea water temperature for the last 10 days:
| January 15 | 32.0°F | January 10 | 32.0°F |
| January 14 | 32.0°F | January 9 | 32.0°F |
| January 13 | 32.0°F | January 8 | 32.0°F |
| January 12 | 32.0°F | January 7 | 32.0°F |
| January 11 | 32.0°F | January 6 | 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
January
January
| 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: 23:44
January 16, friday
0000

21°F
NE
16 mph
16 mph
0300

21°F
N
14 mph
14 mph
0600

23°F
NE
13 mph
13 mph
0900

27°F
E
13 mph
13 mph
1200

30°F
E
17 mph
17 mph
1500

34°F
E
17 mph
17 mph
1800

32°F
E
13 mph
13 mph
2100

28°F
E
16 mph
16 mph



























