Jennings, Antigua and Barbuda offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Jennings, Saint Mary, Antigua and Barbuda, is known for its proximity to the scenic Jolly Harbour and the beautiful beaches of the Caribbean. The best time to travel to Jennings, Antigua and Barbuda, is from December to April, with average air temperatures around 77-82°F (25-28°C) and water temperatures about 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!