Las Trojitas, Mexico offers 1 beach perfect for sunbathing, surfing, swimming, and more. Las Trojitas is known for its proximity to the Monarch Butterfly Biosphere Reserve. The best time to travel to Las Trojitas, Mexico, is between November and April, with average air temperatures around 75°F (24°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!