Saint Mary, Jersey offers 1 beach perfect for sunbathing, surfing, swimming, and more. Saint Mary, Western, Jersey is known for the Jersey War Tunnels, a historical attraction detailing the island's occupation during World War II. The best time to travel to Saint Mary, Jersey, is from June to September, with average air temperatures around 60-70°F (15-21°C) and water temperatures around 59-64°F (15-18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
