Puertecillo
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Hourly Forecast
Timezone: America/Santiago
⏱️s.
⚡️kJ
Monday 15
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Friday 19
Saturday 20
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Puertecillo surf guide

Puertecillo is a well-known surf spot located in Chile, recognized for its left-hand point break. Nestled under a headland, it offers decent protection from south winds, which means it generally requires a solid swell to get the waves rolling. Compared to nearby Pichilemu, Puertecillo typically sees smaller waves. Ideal conditions often feature at least a 3m southwest swell, combined with southeast or light winds and an outgoing tide. When the conditions align, Puertecillo can deliver impressive, long barrels over sand that can stretch up to 700m. However, don’t expect consistent action; it can be pretty spotty and lackluster when the swell drops and breaks unevenly.

The waves at Puertecillo work best with a southwesterly swell and can handle sizes from about 1.5m to 3m (5ft to 10ft). The sand-bottom point break is capable of providing some great left waves, particularly when the sand settles after winter storms. Waves usually break over uneven reef and sand, making it suitable for intermediate surfers with shortboards. The optimal conditions generally come during autumn, with medium to low tides being preferable and southeast winds pushing through. When conditions are right, surfers can experience some world-class left-hand tubes, but remember that crowds can build up quickly, especially in the summer.

Accessing Puertecillo requires permission to traverse private land, which can complicate your trip. The roads leading to the spot are rough, and it’s not hard to lose your way. Be mindful that peak times may see around 100 surfers in the water, so it’s not always a peaceful session. Despite the busy line-up, local vibes are mostly mellow, with not many locals around to overcrowd the waves. All in all, while Puertecillo can be hit or miss, when it works, it lives up to its reputation for delivering beautiful waves.

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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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