Glocester, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Glocester, Rhode Island, United States, is known for the George Washington Management Area and the historic village of Chepachet. The best time to travel to Glocester, United States, is in late spring (May), when the average air temperature is around 65°F (18°C) and the water temperature in nearby lakes is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!