Avon by the Sea, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Avon by the Sea is known for its picturesque Avon Boardwalk and the historic Avon Pavilion. The best time to travel to Avon by the Sea, United States, is from June to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!