Barrouallie, Saint Vincent and the Grenadines offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Barrouallie is known for its unique Blackfish Festival and the historic Catholic Church of Saint Patrick. The best time to travel to Barrouallie, Saint Vincent and the Grenadines, is from December to April, with average air temperatures around 27°C (81°F) and water temperatures near 28°C (82°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!