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: | 33.7°F |
| more information | |
14 days
forecast
forecast
| Lake Geneva |
monthly
weather
weather
| Lake Geneva |
Sea water temperature for the last 10 days:
| January 12 | 32.0°F | January 7 | 32.0°F |
| January 11 | 32.0°F | January 6 | 32.0°F |
| January 10 | 32.0°F | January 5 | 32.0°F |
| January 9 | 32.0°F | January 4 | 32.0°F |
| January 8 | 32.0°F | January 3 | 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: 23:06
January 13, tuesday
0000

32°F
NE
9 mph
9 mph
0300

34°F
NE
11 mph
11 mph
0600

36°F
NE
16 mph
16 mph
0900

32°F
NE
20 mph
20 mph
1200

39°F
E
18 mph
18 mph
1500

45°F
E
19 mph
19 mph
1800

39°F
SE
17 mph
17 mph
2100

36°F
E
16 mph
16 mph


























