Stronger rip currents in Spring Tides pose risk to swimmers

Edited by Bev Mortimer: The Spring tides presently occurring on the coastlines can result in stronger tidal currents, particularly in narrow inlets and this presents potential dangers, such as Rip Currents being stronger.

This is according to the NSRI that warns: “Tidal flows intensify rip currents, posing a risk to swimmers.”
The NSRI has advised people on the coast or those inland at rivers to be to be extra careful this weekend during the present Spring Tides when high tides are higher and low tides are lower.
Beach goers particularly are urged to be cautious during this full moon Spring tide, which peaked yesterday, 4 December as it will significantly impact tidal conditions this weekend.
The NSRI says this natural phenomenon occurs when the sun, moon, and Earth align during the full moon phase, and this amplifies the gravitational pull on the oceans.

Rip current graphic – magriet


The NSRI gives the public the following ‘Spring Tides and Coastal Safety Precautions’ and the ‘Impacts and Hazards’ of a Full Moon Spring Tide, plus the conditions beach goers can expect this weekend:

  • Higher High Tides: Water levels will rise significantly, reaching further up the shoreline.
  • Lower Low Tides: More of the seabed will be exposed as water levels dip below average.
  • Increased Tidal Range: The difference between high and low tide levels will be at a maximum.
  • Beach visitors, rock anglers and those on boats or paddling should time their activities and be cautious during tide changes, especially when high tide recedes to low tides and when there are incoming tides.
    The NSRI suggests the public should ensure safety while enjoying coastal activities by:
  • Swimming only at lifeguard-protected beaches.
  • Swimming between lifeguard flags.
  • Be aware of rip currents: “Rip currents are particularly strong during spring tides, especially during out-going tides.”
  • Fishing Precautions: Shoreline anglers should exercise extra caution, as higher waves may reach beyond usual safe zones. Shoreline anglers should maintain a safe distance from the water.
  • When fishing from rocks or cliffs, wear a life jacket and carry flotation equipment (for example, a 5L water container with a rope attached that can be thrown to someone in the water.)
    Beach goers should daily check weather forecasts and timetables from the SA Weather Service (SAWS)
    Coastal Activities:
  • Coastal Hiking Hazards: Some hiking trails near the coast may become inaccessible or hazardous during high tide. Plan hikes carefully, avoid trails that might be cut off during high tide.
  • Those on boats or who paddle should always wear life jackets, carry essential safety equipment, and keep cell phones fully charged in a waterproof pouch. The free NSRI ‘SafeTrx’ smartphone app allows one to log a trip and call the NSRI for help quickly and easily.
    General Water Safety:
  • Alcohol and swimming: Drinking alcohol before doing an activity in or near water may puts one’s life at risk
  • Parents should ensure children are under the supervision of responsible adults in and near the water.
  • Inland water caution: Be cautious around rivers, lakes, and dams, especially during heavy rainfall. Monitor adverse weather conditions such as strong winds and fast-flowing rivers.
    Additional Precautions:
  • Stay informed: Follow local safety alerts and warnings issued by authorities.
  • Enjoy coastal activities responsibly:
    The effects of spring tides can last several days. By adhering to the above safety measures, beach visitors will minimise risks and can enjoy the ocean’s natural beauty responsibly.
    The NSRI remains committed to safeguarding lives and promoting awareness of coastal hazards. For emergency assistance, please call: 087 094 9774 or visit the website http://www.nsri.org.za
    “Stay safe, stay informed, and respect the power of nature,” the NSRI says.

The next Spring Tides are: 20-22 December ; 1-4 January 2026, peaking around the full moon on 3 January; and around 15 January

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