Yes, Praia de Estoril is generally safe for swimming and very family-friendly, which is why it's Sal Rei's main swimming beach. The waters are typically calmer than exposed Atlantic beaches, with gentle waves suitable for children. The beach is well-frequented, providing safety in numbers, though no official lifeguard service may be present. Always supervise children and check daily conditions, as winds and currents can vary. The sandy bottom and gradual depth make it ideal for families and less confident swimmers.

Praia de Estoril can be enjoyed year-round thanks to Cape Verde's consistently warm climate, with temperatures ranging from 24-30°C. The best weather occurs from November to June when rainfall is minimal and skies are clearest. During July to October, temperatures peak and occasional rain showers occur, but the beach remains accessible. For fewer crowds, visit early morning or late afternoon, though the beach's urban location means it's popular throughout the day. Sunset visits are particularly pleasant for strolling along the waterfront.