NSRI warns of powerful spring tides as Heritage weekend and school holidays begin

The National Sea Rescue Institute (NSRI) has issued an urgent safety warning for people using South Africa’s coastline as a powerful equinox spring tide aligns with the Heritage Day long weekend and school holidays.

When and why the risk is higher

A full moon peaks on Saturday, 26 September, at 6:48pm, and the NSRI says the strongest tidal ranges are expected from Saturday through Tuesday. Spring tides occur when the sun, moon and Earth align, intensifying the ocean’s pull.

Who is at risk

The NSRI urged beachgoers, anglers and coastal hikers to exercise extreme caution. The organisation highlighted that spring tides bring higher high tides, lower low tides and an increased tidal range that can make parts of the coast more hazardous.

Specific hazards noted

• Rip currents stronger on outgoing tides and at estuary mouths.
• Harbour entrances and narrow inlets, including Knysna Heads, which may be particularly dangerous.
• Trails that can be cut off at high tide and waves that can surge further than expected, posing risks to coastal hikers and rock anglers.

NSRI advice

NSRI Communications Manager Andrew Ingram urged people to plan ahead and stick to safe areas.

“With families heading to the coast for the holidays, we are asking everyone to plan around the tides this week.”

He also cautioned about direct rescues:

“If you see someone in trouble, call for help immediately. Do not put yourself at risk.”

The NSRI listed practical precautions:

• Swimmers: only swim at lifeguard‑protected beaches and between the flags; be extra careful on outgoing tides when rip currents are strongest.
• Hikers: plan routes around local tide times and avoid trails that may be cut off.
• Boaters and paddlers: wear life jackets, carry essential safety gear and keep a charged cellphone in a waterproof pouch. The NSRI’s free SafeTrx app lets users log trips and call for help quickly.
• General: avoid alcohol before swimming or fishing, supervise children near water, and watch for strong winds or sudden weather changes.

Emergency contact

In an emergency the NSRI advises calling the NSRI Emergency Operations Centre on 087 094 9774 or dialing 112 from a cellphone.

“We want everyone to enjoy the Heritage weekend safely. Respect the ocean, plan ahead, and never underestimate the power of the tides.”