Water temperature all along the Lake Geneva coast is not yet warm enough for swimming and does not exceed 20°C. The warmest water temperature Lake Geneva today is 18.7°C (in Sciez, France), and the coldest Lake Geneva surface temperature now is 18.4°C (in Coppet, Switzerland).
The table below shows some of the cities on the Lake Geneva coast with the values of surface water temperature today and yesterday. Also indicated are the maximum and minimum water temperatures that were recorded this month for the last ten years. To see the details, select the country and then the city of your interest. Besides water temperature, you can also get information about the weather for today, tomorrow and the upcoming days, surf forecast, as well as the data on sunrise/sunset and moonrise/moonset at a given point on any given day.