Toa Baja, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Toa Baja is known for the historic Fortin San Juan de la Cruz, also known as El Canuelo. The best time to travel to Toa Baja, United States, is from December to April, with average air temperatures around 75-85°F and water temperatures near 79-82°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!