Greenwich Island, Antarctica offers 1 beach perfect for sunbathing, surfing, swimming, and more. Greenwich Island, Greenwich Island is known for its proximity to the Antarctic Peninsula and the presence of the Chilean and Ecuadorian research stations, Arturo Prat and Pedro Vicente Maldonado, respectively. The best time to travel to Greenwich Island, Antarctica, is from November to March, with average air temperatures around -2 to 2 degrees Celsius and water temperatures near freezing at 0 degrees Celsius. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!