Saint Paul en Chablais, France offers 1 beach perfect for sunbathing, surfing, swimming, and more. Saint Paul en Chablais is known for its proximity to Lake Geneva and the scenic beauty of the Chablais Alps. The best time to travel to Saint Paul en Chablais, France, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and the nearby Lake Geneva's water temperature is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!