Patrokl Bay Beach is generally considered safe for swimming during the summer months when the Sea of Japan waters warm up. The sandy bottom and gradual depth make it suitable for families with children. However, water temperatures remain cool even in peak season, typically ranging from 17-20°C. Always check local weather conditions and watch for jellyfish, which occasionally appear in late summer. Lifeguards may not always be present, so supervise children closely and avoid swimming during rough weather or strong currents.

The best time to visit Patrokl Bay Beach is from late June through August when temperatures are warmest and most suitable for beach activities. July and August offer the warmest sea temperatures, though they rarely exceed 20°C. Vladivostok's climate means the swimming season is relatively short. Weekdays are less crowded than weekends when local families flock to this urban beach. Early autumn can offer pleasant weather with fewer crowds, though the water becomes quite cold for swimming.