Swimming conditions at Gaydamak Bay depend on weather and season. The bay's sheltered cove configuration generally provides calmer waters than open coastline, but water temperatures in Primorsky Krai remain cold even in summer. Always check local conditions before entering the water, watch for currents, and be aware that this is a remote location with limited emergency services. Swimmers should exercise caution and never swim alone in such isolated areas.

The optimal visiting period is July through early September when temperatures are warmest and daylight hours are longest. However, this beach is specifically noted for fewer crowds, making shoulder seasons like late June or mid-September appealing for solitude seekers. Weather can be unpredictable in Primorsky Krai, so prepare for variable conditions. Visiting during weekdays rather than weekends further ensures a quieter experience at this already low-traffic destination.