This weekend, the National Sea Rescue Institute (NSRI) is urging beach lovers, anglers, and coastal path walkers to exercise heightened caution as the full moon spring tide peaks on Monday, 5 January 2026.
This natural phenomenon, where the sun, moon, and Earth align during a full moon, significantly amplifies the gravitational pull on Earth’s oceans, resulting in dramatic tidal fluctuations.
As the full moon nears, beachgoers should prepare for a weekend of heightened tidal variations, which can have serious implications for those enjoying coastal activities.
The NSRI is particularly concerned about the risks associated with the stronger tidal currents that come with spring tides, urging all to stay vigilant over the next few days.
What to expect during a spring tide
Beach visitors should be aware that spring tides bring about notable changes in the water levels:
- Higher High Tides: Water levels may rise significantly, reaching further up the shoreline than normal.
- 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 reach its peak, leading to greater tidal extremes.
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Risks associated with spring tides
With these changes in water levels come increased risks, particularly for those engaging in activities on or near the water:
- Rip Currents: Stronger tidal flows enhance the intensity of rip currents at beaches, which can pose a serious risk to swimmers.
- Rip Tides: The flows can also become more hazardous at locations like the Knysna Heads.
- Coastal Hiking Hazards: Hiking trails near the coast may become dangerous or inaccessible during high tide.
- Fishing Precautions: Shoreline anglers should maintain a safe distance from the water as higher waves may extend beyond usual boundaries.
Essential safety measures
To ensure a safe and enjoyable experience, the NSRI recommends various safety precautions for beach and coastal activities:
- Swimming Safety: Always swim at lifeguard-protected beaches and stay between the flags to avoid rip currents. Be particularly vigilant during outgoing tides in the late afternoon when rip currents can be strongest.
- Hiking Precautions: Plan hikes meticulously, avoiding trails that could become cut off during high tide.
- Fishing Advisories: Shoreline anglers should maintain a safe distance and consider wearing a life jacket and carrying flotation equipment.
- Boating and Paddling: Essential safety equipment is a must, along with a charged cell phone in a waterproof pouch. The NSRI’s free SafeTRX app is a great resource for logging trips and calling for help if needed.
- General Water Safety: Never mix alcohol with water activities, supervise children closely, and be wary of inland water hazards, especially after heavy rainfall.
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Picture: Gallo Images / Esa Alexander
