Praia de Ipanema
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Hourly Forecast
Timezone: America/Sao_Paulo
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Praia de Ipanema surf guide

Praia de Ipanema is one of the famous beaches in Rio de Janeiro, known for its vibrant atmosphere and popularity among locals and tourists alike. This spot can be hit or miss when it comes to surfing, depending on the conditions. While it’s a city beach and can sometimes be flat, there are days when the surf can surprise you with solid waves. The beach itself has a lively vibe, making it a great place to hang out when you’re not surfing.

The waves at Ipanema can range from playful chest-high (about 1.2 meters) to slightly overhead (around 2 meters) on the right days. It generally handles swell sizes from about 2 feet (0.6 meters) to 6 feet (1.8 meters), with the best conditions coming from the southeast to southwest. The sand bottom is fairly forgiving, but the waves can be shifty with peaks that vary from right to left. Medium to high tides work best here, and calm to offshore winds from the northwest to northeast are ideal to get the most out of your session. Just keep in mind that while some days may offer great rides, it can also lead to closeouts next to the beach, so knowing when to pick your peak is key.

Access to Ipanema is easy, making it a popular spot, especially on weekends when crowds can be large on the beach. However, the surf lineup can be less congested. This area is best surfed during the fall and winter months when more consistent swells come through, and the sandy bottoms are at their best. Just be cautious of rip currents, as they can be a hazard at this beach. Overall, it's a spot that requires some experience to navigate the varying conditions but can be rewarding when it’s firing.

Surf reports and surf forecasts nearby Praia de Ipanema

Praia da Macumba
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Beach break
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Barra da Tijuca
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São Conrado
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Pepino
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Leblon
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Beach break
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Copacabana - Posto 5
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Praia de Ipanema
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Beach break
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Arpoador
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Beach break
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Diabo
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Beach break
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Itacoatiara
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Beach break
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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.

With Surfnerd, no more "you should have been here yesterday"

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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