Weather in Lake Geneva: July
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Average day temperature: | 79.0°F |
| Average night temperature: | 65.5°F | |
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Sea water temperature: | 46.6°F |
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Number of sunny days: | 10 days |
| Day length: | 14.5 - 15.3 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.1 in. | |
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forecast
| Lake Geneva |
temperature
| Lake Geneva |
Air temperature in July, °F
The highest day temperature during July of 2025 was 93°F. At the same time the lowest night temperature was 51°F. Daily and nightly averages during July were 81.5°F and 64.6°F.
Sea water temperature in Lake Geneva in July, °F
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.
Mostly all days in July are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in July, in.
Precipitation total value in Lake Geneva in July is 1.1 in. Other months of the year show relatively similar values.
The average wind speed value in July is 7.2 mph It makes July lest 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 July is: 8.6.
Best time for vacation in Lake Geneva
Lake Geneva on a weather map
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