Treachery
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Swl 3
1.3ft 12s.
22kJ
Swl 2
2.2ft 10s.
40kJ
Swl 1
4.6ft 9s.
162kJ
Wnd
4mph
3mph
Hourly Forecast
Timezone: Australia/Sydney
⏱️s.
⚡️kJ
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🌒
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Treachery surf guide

Treachery is a beach break located on the NSW coast that’s known for its consistency. It lives up to its name with powerful waves and some hefty rips occasionally pulling through, plus there have been sightings of large sharks in the area. The summer NE breezes are offshore, and the swell usually ends up a couple of feet bigger than other local spots. It’s not the friendliest spot for beginners, especially when it gets crowded during holidays or busy weekends.

The best swell direction for Treachery is from the southeast, but it can handle swells coming from the northeast and south as well. It's capable of breaking waves at sizes starting from 1ft (about 0.3m) and can manage much larger sets too. The waves come in both lefts and rights, and there’s a paddling channel at the northern peak, though you should expect to get tossed around a bit if you’re not careful. The break works over sand, and it can really barrel on the outside and inside when conditions are right. For the best experience, low, mid, or high tide works well, but just keep in mind that things can change with the tide.

If you feel like exploring, there are some reefs further south that can offer a different wave experience. Treachery certainly gives surfers something to challenge their skills, but make sure you're prepared for the spot's power and the crowd dynamics.

Surf reports and surf forecasts nearby Treachery

One Mile Beach
New South Wales, Australia
Beach break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Forster
New South Wales, Australia
Reef break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Tuncurry
New South Wales, Australia
Unknown break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Boomerang Beach
New South Wales, Australia
Beach break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Booti Booti
New South Wales, Australia
Beach break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Blueys Beach
New South Wales, Australia
Beach break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Sandbar NSW
New South Wales, Australia
Beach break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Seal Rocks Lighthouse Beach
New South Wales, Australia
Beach break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Seal Rocks
New South Wales, Australia
Point break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Treachery
New South Wales, Australia
Beach break
Wed 30
Thu 31
Fri 1
Sat 2
Sun 3
Mon 4
Tue 5
Wed 6
Thu 7
Fri 8
Sat 9
Sun 10
Wind certainty

Wind certainty tells you how much the weather models agree on the forecast.

  • High certainty: Models agree closely; forecast is reliable.
  • Medium certainty: Some disagreement; conditions may shift slightly.
  • Low certainty: Models diverge; treat forecast with caution.

We calculate this by comparing wind speed, gust and direction from multiple models (like GFS, ECMWF, Arome, and Harmonie) and seeing how closely they match. They are weighted, meaning that some models count more than others, depending on how good they are for a certain spot.

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