San Gallan Island, Peru offers 1 beach perfect for sunbathing, surfing, swimming, and more. San Gallan Island, Pisco Province, Peru, is known for the Paracas National Reserve and its diverse marine wildlife. The best time to visit San Gallan Island, Peru, is from December to March, with average air temperatures around 75°F (24°C) and water temperatures near 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!