Real time Leman Lake / Geneva Lake temperature.And just for fun comparison with Brittany with Lorient sea temperature :-)For people in Haute-Savoie, Valais, Vaud, Geneva, Lausanne, Thonon, Evian, Annemasse, Gex, Nyons, Morges, Saint Prex.Temperature taken from near Buchillon (VD) at 1m under water.