Swimming at Constellation Beach is generally not recommended due to cold water temperatures year-round (typically 45-55°F) and strong currents in Puget Sound. The beach is primarily enjoyed for beachcombing, tide pooling, and scenic walks rather than swimming. There are no lifeguards on duty. If you do enter the water, wear appropriate thermal protection and stay close to shore. Always check tide schedules before visiting, as high tides can significantly reduce beach access and create hazardous conditions.

Constellation Beach can be visited year-round, but summer months (June-September) offer the most pleasant weather with temperatures averaging 65-75°F and less rainfall. However, visiting during low tide is essential for the best experience regardless of season, as it reveals tide pools and expands beach access significantly. Early morning or late afternoon provides the best lighting for photography and fewer crowds. Winter visits offer dramatic storm-watching opportunities and solitude, though expect cooler temperatures (40-50°F) and frequent rain.