Surabaya, Indonesia offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Surabaya is known for the Heroes Monument and the Suramadu Bridge. The best time to travel to Surabaya, Indonesia, is from May to September, with average air temperatures around 28°C (82°F) and water temperatures near 29°C (84°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!