Puerto Caldera
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Hourly
Timezone: America/Costa_Rica
⏱️s.
⚡️kJ
Friday 17
Saturday 18
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Puerto Caldera surf guide

Puerto Caldera is a surf spot located in Costa Rica that offers some unique surfing opportunities. Situated near a river mouth, it features a mix of reef and sandy breaks. The area can get pretty busy, especially with surfers looking for some fun waves. As with many places, there are local vibes, so it's good to be respectful and enjoy the surf scene.

The surf here is mostly lefts, and it works best on mid to high tides. For those looking for some action, the optimal swell direction is from the southwest, but it can handle southerly and westerly swells too. The waves can range from about 2 feet (0.6 meters) up to larger sizes, and you can find a cool rivermouth bar that can get fast and ripable on big swells. El Hoyo is further west, where you might find some quality jetty wedges, but it needs specific conditions like east winds for the best experience. The north side of the jetty can also throw up a rare barreling left, and down by Punta Corralillos, you have a fun left point that works well at all tides. This spot is generally good for intermediate surfers looking to catch some decent waves.

As with many surfing locations, be prepared for some variability in conditions and wave quality. The best times to surf are when the waves are coming from the right direction, and it's a good idea to keep an eye on the tides. Enjoy your time at Puerto Caldera, and make sure to soak up the experience!

Surf reports and surf forecasts nearby Puerto Caldera

Boca Barranca
Provincia De Puntarenas, Costa Rica
Rivermouth break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Puerto Caldera
Provincia De Puntarenas, Costa Rica
Rivermouth break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Tivives
Unknown Region, Unknown Country
Beach break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Playa Escondida
Puntarenas Province, Costa Rica
Reef break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Playa Jaco
Puntarenas Province, Costa Rica
Beach break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Playa Jacó
Puntarenas Province, Costa Rica
Beach break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Roca Loca
Puntarenas Province, Costa Rica
Reef break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Playa Hermosa
Puntarenas Province, Costa Rica
Beach break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Playa Hermosa South
Puntarenas Province, Costa Rica
Beach break, Canyon break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
Boca Tusubres
Puntarenas Province, Costa Rica
Rivermouth break
Sat 18
Sun 19
Mon 20
Tue 21
Wed 22
Thu 23
Fri 24
Sat 25
Sun 26
Mon 27
Tue 28
Wed 29
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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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

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

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