The National Sea Rescue Institute (NSRI) has issued an urgent warning to coastal visitors about dangerous spring tide conditions expected to peak this Saturday, 20 December.
The new moon spring tide will create significantly stronger tidal variations throughout the weekend and into next week, posing increased risks to beachgoers, anglers, and hikers along the coast.
Andrew Ingram, NSRI drowning prevention manager, explained that this natural phenomenon occurs when the sun, moon, and Earth align during the new moon phase, amplifying the gravitational pull on our oceans.
“The effects of this new moon spring tide will be felt over this weekend and for the next few days,” said Ingram. “We’re asking beach visitors, rock and surf anglers, and people who intend to walk on coastal paths to be aware of the stronger tidal variation typical of spring tides.”
Extreme Conditions
During spring tides, water levels will rise significantly higher than usual, reaching further up the shoreline, whilst low tides will expose more of the seabed than normal. The difference between high and low tide levels will be at its maximum.
These conditions create stronger tidal currents, particularly in narrow inlets, presenting several potential dangers to the public.
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Rip currents become more intense at beaches, posing serious risks to swimmers, whilst stronger tidal flows affect areas like the Knysna Heads. Some coastal hiking trails may become inaccessible or hazardous during high tide periods, particularly in the afternoon.
Shoreline anglers face additional risks as higher waves may reach beyond usual safe zones.
Safety First
The NSRI strongly recommends that swimmers only use lifeguard-protected beaches and swim between the designated flags to avoid dangerous rip currents.
“Rip currents are particularly strong during spring tides, especially during outgoing tides in the late afternoon,” warned Ingram.
Coastal hikers should plan their routes carefully, avoiding trails that may be cut off during high tide periods.
Angling Precautions
Rock and surf anglers must maintain a safe distance from the water and should wear life jackets when fishing from rocks or cliffs. The NSRI recommends carrying flotation equipment, such as an empty 5-litre water container with a rope attached, which can be thrown to someone in distress. Boaters and paddlers should always wear life jackets, carry essential safety equipment, and keep mobile phones fully charged in waterproof pouches.
Additional Warnings
The NSRI emphasises that alcohol consumption before water activities significantly increases risk and should be avoided entirely.
Children must remain under constant adult supervision when near water, and visitors should exercise caution around inland water bodies, particularly during heavy rainfall periods.
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“Be cautious during tide changes, especially when high tide recedes to low tide for beach visitors in the late afternoon, and on the incoming tide for rock anglers,” advised Ingram.
Stay Informed
The public should regularly check weather forecasts from the South African Weather Service and consult tide timetables before venturing to coastal areas.
The free NSRI SafeTrx smartphone app allows users to log trips and call for help quickly during emergencies.
“The effects of spring tides can last several days,” concluded Ingram. “By adhering to these safety measures, you can minimise risks and enjoy the ocean’s natural beauty responsibly.”
For emergency assistance or further information, visit www.nsri.org.za or contact NSRI Communications Manager Andrew Ingram at andrewi@searescue.org.za or 082 990 5977.
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