Shark Island
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Hourly Forecast
Timezone: Australia/Sydney
⏱️s.
⚡️kJ
Thursday 18
Friday 19
Saturday 20
Sunday 21
Monday 22
Tuesday 23
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Shark Island surf guide

Shark Island is known to be a pretty intense surf spot located in a rocky area, attracting serious surfers and bodyboarders alike. It has a reputation for being challenging and is best suited for those who really know what they're doing in the water. It's not the kind of place you'd want to hit up for a chill session; instead, you might want to leave it to the more experienced crowd. The spot gets its name from the way the waves break, creating powerful conditions that demand respect from anyone looking to paddle out.

The waves at Shark Island can get pretty heavy, especially on a SouthEast swell, which is when the rights are at their best. The lefts are less of a thrill but can break on NorthEast swells. This spot typically handles swell sizes at around 4ft (1.2m). You’ll find the waves breaking over a rock ledge, providing both right and left options. If you're planning to surf here, it’s best to go during mid to high tide with a gentle west wind blowing. Just remember, this isn't for beginners – only experts should think about heading out.

While Shark Island is mostly known for its hardcore waves, localism can be an issue here. Expect to encounter some strong attitudes, especially from the bodyboarders who frequent the area. If you do decide to surf here, it's advised to paddle from the point and keep your cool. Overall, it's a spot that demands skill and respect, so make sure you're ready before you dive in.

Surf reports and surf forecasts nearby Shark Island

Malabar
New South Wales, Australia
Reef break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
Voodoo
New South Wales, Australia
Reef break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
Greenhills
New South Wales, Australia
Beach break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
Wanda
New South Wales, Australia
Beach break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
Elouera
New South Wales, Australia
Beach break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
The Wall - Cronulla
New South Wales, Australia
Beach break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
The Alley
New South Wales, Australia
Reef break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
Shark Island
New South Wales, Australia
Reef break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
Cronulla Point
New South Wales, Australia
Point break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
Garie Beach
New South Wales, Australia
Beach break
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Fri 26
Sat 27
Sun 28
Mon 29
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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.

Readme

Welcome! If you’re new to surf forecasting, check out this quick guide.

Forecast Table

The forecast table (the section on the page with all the numbers) is designed to pack as much information in the screen as possible. Although intimidating at first, it will help you make informed decisions about the waves faster, trust me :D. The table consists of roughly four sections, time and predictions, wind, waves, and tides:

🔮 Time and predictions section

Here we show the forecast thour and the overall surf quality prediction. This is determined based on the wave, wind and tide quality prediction. These individual predictions can be found on the forecast map.

💨 Wind section

The first row on the table (with the 💨 icon) shows wind speed, direction and gust. The more the wind speed the more aggressive the color (from blue, green, orange to red).

🌊 Wave section

The waves section consists of three rows, one for wave height and direction, one for period and one for wave energy. Our algorithm choices the "dominant wave". This is normally the first swell partition, but with heavy local storms it displays the wind waves. If that's the case, we display the numbers in italic and in gray.

🌒 Tide section

The tide section consists of a row with the actual heights per hour (measured at the half hour) and a table that displays the flow of the tide and the extremes (lows and highs).

Forecast map

The forecast map consists of arrows. These arrows represent all wave partitions (swell partitions and wind wave partition) and the wind. This allows you to see things like: a secondary swell or wind waves messes up the surf, or the wind is just a tick offshore so very surfable. Click a metric label in the bottom left to bring that arrow to the front — handy when arrows overlap.

Forecast Cheat Sheet

Short on time? Focus on wave energy. It’s the best single metric to gauge how big and powerful the waves will be.

Click any table cell to jump to that forecast hour. The map will update with forecast arrows, so you can see if wind and swell direction are lining up.

Use the table sidebar to switch units for height and speed.

Log your surf sessions to compare forecasts with real sessions and sharpen future predictions.

Models and Updates

Surfnerd blends multiple global and local wind and swell models using advanced interpolation and spatial techniques to create an "ensemble" forecast. Forecasts are refreshed hourly.

Surf Predictions

Our AI-driven algorithm scores surf quality, shown by green, orange, and gray dots. Each forecast hour is rated for wind, swell, and tide quality, then combined into an overall score. Here’s the scale:

Perfect
Good
Average
Bad or No Data

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