Baie des Trépassés
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Hourly Forecast
Timezone: Europe/Paris
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Sunday 14
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Friday 19
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Baie des Trépassés surf guide

Baie des Trépassés is a surf spot located in Finistère, France. Known for its stunning natural beauty, the bay gets its ominous name, which translates to ‘Bay of Death’, from the cold water temperatures. It’s a popular beachbreak that attracts surfers of various levels, especially on weekends when the conditions are decent. The area offers a relaxed vibe, and it's a great place for those looking to catch some waves while enjoying the picturesque surroundings.

This spot handles a range of swell sizes, comfortably picking up waves starting from 2ft (0.6m) and often producing longer rides when conditions are right. The optimal swell direction comes from the west, but it can also work with swells from the southwest and northwest. With both left and right wave directions over a sandy bottom, there’s something for everyone. Low to mid tide is preferable for better rides, but the beach can accommodate surf sessions at high tide too. Do keep in mind that it can get crowded on small swell weekends, though there are plenty of easy waves available for mixed abilities, especially for intermediate surfers.

While surfing at Baie des Trépassés, be aware that rips and fast offshore currents can impact your session, so it’s worth staying alert. If you’re looking for more variety, consider taking a boat ride to Ile de Sein, where you can explore some decent reefs. Overall, Baie des Trépassés offers a fun surf spot with a unique mix of challenges and waves, suitable for those ready to enjoy the thrill of the ocean.

Surf reports and surf forecasts nearby Baie des Trépassés

Baie des Trépassés
Brittany, France
Beach break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Pointe de Dinan
Brittany, France
Point break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Porz Théolen
Unknown Region, Unknown Country
Beach break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
La Palue
Brittany, France
Beach break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Cap de la Chèvre
Brittany, France
Point break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Saint Tugen
Brittany, France
Beach break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Pointe de Lervily
Brittany, France
Point break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
La Gamelle
Brittany, France
Reef break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
East of Kersiny
Brittany, France
Unknown break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
Gwendrez
Brittany, France
Beach break
Sun 14
Mon 15
Tue 16
Wed 17
Thu 18
Fri 19
Sat 20
Sun 21
Mon 22
Tue 23
Wed 24
Thu 25
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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

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

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