Calanque du Brégançonnet's southern exposure means it can experience rougher conditions than north-facing beaches, particularly during southern winds or mistral after-effects. Swimming is generally safe in calm weather, with clear waters ideal for snorkeling. The rocky nature of the cove requires careful entry and exit from the water. No lifeguards patrol this remote location, so swimmers must assess conditions independently. Check marine forecasts before visiting and avoid swimming during adverse weather. The secluded location means help is not immediately available in emergencies.

The ideal visiting window is late May through June and September, offering warm weather with manageable crowds. Summer months bring more visitors but this southern cove remains less busy than Porquerolles' northern beaches. Morning visits provide calmer seas before afternoon thermal winds develop. The south-facing orientation delivers all-day sunshine, making it excellent for sunbathing. Avoid periods of strong southern or south-easterly winds when waves make swimming difficult. Spring and early autumn also offer comfortable water temperatures with Mediterranean clarity at its peak.