San Onofre, Colombia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. San Onofre is known for its proximity to the San Onofre National Park and the Gulf of Morrosquillo. The best time to travel to San Onofre, Colombia, is from December to March, with average air temperatures around 80°F (27°C) and water temperatures near 82°F (28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!