Newton Ground, Saint Kitts and Nevis offers 1 beach perfect for sunbathing, surfing, swimming, and more. Newton Ground, Saint Paul Capesterre, Saint Kitts and Nevis, is known for Brimstone Hill Fortress National Park. The best time to travel to Newton Ground, Saint Kitts and Nevis, 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!