Swimming safety at Praia de Caleijão varies with weather and ocean conditions. As a sandy beach on São Nicolau's southern coast, it typically offers easier water access than rocky alternatives, though Atlantic currents can be strong. No lifeguards or safety services are present, so swimmers must assess conditions independently. Check for strong currents, wave height, and underwater obstacles before entering. The beach's remote location means help is not readily available in emergencies. Swimming is generally safer during calm weather and at protected spots along the shore.

The optimal visiting period runs from November through June, coinciding with Cape Verde's dry season and calmer seas. This lesser-known beach remains uncrowded throughout the year, making any time suitable for those seeking solitude. Mornings typically offer the best conditions with cooler temperatures and gentler winds. The shoulder months of November and May provide excellent weather with minimal visitors. Year-round temperatures stay warm, but December through March brings the most comfortable climate for beach activities and coastal exploration around Caleijão.