Praia de Aguieira is generally considered very safe for swimming, particularly due to its location within the Ría de Muros e Noia, which offers more sheltered waters compared to the open Atlantic. The long, sandy expanse provides ample space for bathers. During the peak summer season, lifeguard services are typically present, enhancing safety for families. However, always be mindful of local conditions and supervise children closely.

For the best weather and a quieter experience, consider visiting Praia de Aguieira during the shoulder seasons, specifically late spring (May-June) or early autumn (September-October). These months offer comfortable temperatures for sunbathing and swimming, with fewer visitors than the peak summer. While summer provides the warmest water and most vibrant atmosphere, it also attracts the largest crowds.