Cedar Grove, Antigua and Barbuda offers 11 beaches perfect for sunbathing, surfing, swimming, and more. Cedar Grove, Saint John, Antigua and Barbuda, is known for its proximity to Dickenson Bay, a popular beach destination. The best time to travel to Cedar Grove, 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!