Reventazon, Costa Rica offers 1 beach perfect for sunbathing, surfing, swimming, and more. Reventazon, Limon, Costa Rica, is known for the Reventazon River, which is popular for white-water rafting and eco-tourism. The best time to travel to Reventazon, Costa Rica, is from December to April, with average air temperatures around 75-85°F (24-29°C) and water temperatures near 80°F (27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!