Arroyo Grande, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Arroyo Grande is known for the historic Arroyo Grande Village, Lopez Lake, and the Clark Center for the Performing Arts. The best time to travel to Arroyo Grande, United States, is from June to September, with average air temperatures around 70-80°F and water temperatures near 60-65°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!