Saint-Paul-sur-UbayeSaint-Paul-sur-Ubaye is an alpine commune on the Italian border in the Alpes-de-Haute-Provence department in the Provence-Alpes-Côte d'Azur region in Southeastern France.WWW mairie-saint-paul-ubaye.c...GeographyWith an area of, the commune of Saint-Paul-sur-Ubaye is the largest commune in the Alpes-de-Haute-Provence department by surface area. It is located in the department's northeastern part, on the departmental border with Hautes-Alpes. The source of the Ubaye is in the commune.ClimateSt. Paul sur-Ubaye has a subarctic climate