Weather in Lake Geneva: January
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Average day temperature: | 38.6°F |
| Average night temperature: | 31.1°F | |
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Sea water temperature: | 44.3°F |
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Number of sunny days: | 11 days |
| Day length: | 8.7 - 9.6 hours | |
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Number of days with precipitation: | 7 days |
| Precipitation totals: | 3.7 in. | |
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forecast
| Lake Geneva |
temperature
| Lake Geneva |
Air temperature in January, °F
The highest day temperature during January of 2025 was 54°F. At the same time the lowest night temperature was 24°F. Daily and nightly averages during January were 42.2°F and 36.1°F.
Sea water temperature in Lake Geneva in January, °F
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.
Number of sunny, partly cloudy and cloudy days in January is almost equal.
Precipitation total in January, in.
Precipitation total value in Lake Geneva in January is 4.0 in. Other months of the year show relatively similar values.
The average wind speed value in January is 6.7 mph It makes January most windy month of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 4.5.
Best time for vacation in Lake Geneva
Lake Geneva on a weather map
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