Sainte Rose, Guadeloupe offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Sainte Rose, Basse Terre, Guadeloupe, is known for the Grand Cul-de-Sac Marin Nature Reserve and the Ecomusee CreoleArt. The best time to travel to Sainte Rose, Guadeloupe, is from December to April, when the average air temperature is around 77-82°F (25-28°C) and the water temperature is approximately 79-82°F (26-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!