Jsan Ose, Mexico offers 1 beach perfect for sunbathing, surfing, swimming, and more. Jsan Ose, Sonora, Mexico, is known for its proximity to the stunning beaches of San Carlos and the scenic beauty of the Sea of Cortez. The best time to travel to San Jose del Cabo, Mexico, is from November to April, with average air temperatures around 75°F (24°C) and water temperatures near 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!