Key Takeaways:
- The National Sea Rescue Institute (NSRI) urges beachgoers to exercise caution during the new moon spring tide, which peaks on Saturday, 20 December 2025.
- The new moon spring tide will significantly affect tidal conditions over the weekend, with higher high tides, lower low tides, and increased tidal range.
- Beachgoers, rock and surf anglers, and people who intend to walk on coastal paths should be aware of the stronger tidal variation typical of spring tides.
- The NSRI recommends taking precautions such as swimming at lifeguard-protected beaches, being aware of rip currents, and staying informed about daily weather forecasts and tide timetables.
Introduction to Spring Tides
The National Sea Rescue Institute (NSRI) is warning beachgoers to exercise caution during the new moon spring tide, which is expected to peak on Saturday, 20 December 2025. This natural phenomenon occurs when the sun, moon, and Earth align during the new moon phase, amplifying the gravitational pull on the Earth’s oceans. As a result, the tidal conditions over the weekend will be significantly affected, with stronger tidal variations that can pose potential dangers to those engaging in coastal activities.
Effects of Spring Tides
The effects of the new moon spring tide will be felt over the weekend and for the next few days, with higher high tides, lower low tides, and an increased tidal range. This means that water levels will rise significantly, reaching further up the shoreline, and more of the seabed will be exposed as water levels dip below average. The difference between high and low tide levels will be at its maximum, resulting in stronger tidal currents, particularly in narrow inlets. This can lead to potential hazards such as rip currents, rip tides, and coastal hiking hazards.
Impacts and Hazards of Spring Tides
Spring tides often result in stronger tidal currents, which can present potential dangers to beachgoers, rock and surf anglers, and people who intend to walk on coastal paths. Rip currents, which are strong channels of water that flow away from the shore, can pose a risk to swimmers, especially during outgoing tides in the late afternoon. Rip tides, which are stronger tidal flows of water, can also occur in places like the Knysna Heads. Additionally, some hiking trails near the coast may become inaccessible or hazardous during high tide in the afternoon, and shoreline anglers should exercise extra caution as higher waves may reach beyond usual safe zones.
Safety Measures to Follow
To ensure safety while enjoying coastal activities, the NSRI recommends taking several precautions. Beachgoers should swim at lifeguard-protected beaches and be aware of rip currents, which are particularly strong during spring tides. It is also essential to stay informed about daily weather forecasts from the South African Weather Service (SAWS) and consult tide timetables. When engaging in coastal activities such as hiking, fishing, boating, and paddling, it is crucial to plan carefully, avoid trails that may be cut off during high tide, and maintain a safe distance from the water.
General Water Safety
In addition to the specific precautions for spring tides, the NSRI also emphasizes the importance of general water safety. This includes avoiding alcohol consumption before engaging in water activities, supervising children in and near the water, and being cautious around rivers, lakes, and dams, especially during heavy rainfall. It is also essential to monitor adverse weather conditions such as strong winds and fast-flowing rivers. By taking these precautions, individuals can minimize risks and enjoy the ocean’s natural beauty responsibly.
Additional Precautions
The NSRI also recommends timing activities carefully, being cautious during tide changes, and staying informed about local safety alerts and warnings issued by authorities. By following these safety measures, individuals can enjoy coastal activities while minimizing the risks associated with spring tides. The effects of spring tides can last several days, and by being aware of the potential hazards and taking necessary precautions, individuals can ensure a safe and enjoyable experience.
Conclusion
In conclusion, the NSRI urges beachgoers to exercise caution during the new moon spring tide, which peaks on Saturday, 20 December 2025. By understanding the effects of spring tides, being aware of the potential hazards, and taking necessary precautions, individuals can minimize risks and enjoy the ocean’s natural beauty responsibly. The NSRI remains committed to safeguarding lives and promoting awareness of coastal hazards, and individuals can stay safe, stay informed, and respect the power of nature by following the recommended safety measures and staying up to date with the latest information and updates.
