Praa Sands
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Hourly Forecast
Timezone: Europe/London
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Saturday 13
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Praa Sands surf guide

Praa Sands is a popular surf spot located on the south coast of Cornwall. It’s quite well-known among surfers, especially during the winter months when the waves can get pretty solid. The beach is mostly sandy, and there are a number of pay car parks close to the beach, making access easy. On days when the surf is pumping, you can expect it to get pretty busy with surfers heading in for a session.

The surf at Praa Sands works best with south-west swells, but it can also handle swells coming from the south and north-west. Ideal conditions usually occur when the swell sizes range from about 2 to 6 feet (0.6 to 1.8 meters). The waves are beach breaks that can run either left or right, offering something for everyone. The north-east winds are preferable here, and the best tide heights tend to be low to mid. Don’t forget, paddling out can be a workout, so be ready for that! If you time it right, you might catch some fun walls or even a hollow peak, especially on lower tides. It’s more suited for intermediate surfers, and you can ride various boards, whether it's a shortboard, longboard, fish, or even bodyboarding and bodysurfing.

Expect a competitive vibe, with lots of surfers out when the conditions are good. While the crowds can make it a bit hectic, there are different peaks along the beach that help to spread things out a bit. Just be aware that it gets packed when the surf is on, particularly in the winter months from December to February, when big Atlantic storms roll in. Overall, Praa Sands is a solid spot to check out if you're in the area and looking for some action.

Surf reports and surf forecasts nearby Praa Sands

Porthmeor
Unknown Region, Unknown Country
Beach break
Sat 13
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Carbis Bay
Unknown Region, Unknown Country
Beach break
Sat 13
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Hayle Rivermouth
Unknown Region, Unknown Country
Rivermouth break
Sat 13
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Gwithian
Unknown Region, Unknown Country
Beach break
Sat 13
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Godrevy
Unknown Region, Unknown Country
Beach break
Sat 13
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Perranuthanoe
Unknown Region, Unknown Country
Beach break
Sat 13
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Praa Sands
Unknown Region, Unknown Country
Beach break
Sat 13
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Portreath - Beach
England, United Kingdom
Beach break
Sat 13
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Portreath - The V
England, United Kingdom
Unknown break
Sat 13
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Porthleven
Unknown Region, Unknown Country
Reef break
Sat 13
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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

Session logs also feed the algorithm — the more you log, the smarter your forecasts get.

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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.

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