Les Longchamps
Hourly
Confidence
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Tap a forecast cell to explore conditions on the map.
Timezone: Europe/Paris
Wind: GFS (20251030 18z)
Waves: GFS WAVE (20251030 18z)

Les Longchamps surf guide

Les Longchamps is a surfing spot that's pretty approachable for surfers of all levels. This beach is wide, providing plenty of space to spread out, and has some decent banks that can create waves that are not too shabby. While you might find some hollow waves from time to time, the majority are the typical onshore mushy types. It’s a friendly place where surfers can vibe with each other and enjoy the surf scene.

The surf here is quite versatile, handling swell sizes as small as 1ft (0.3m) quite well. The optimal swell direction is from the Northwest, but it can also pick up swells from the West. You can expect both left and right-breaking waves, catering to different preferences. Low, mid, and high tides all work here, but for the best conditions, beginners will find it manageable with the right wind, preferably coming from the South.

For those looking for a change of pace, Garde-Guerin is a nearby reef break worth checking out. Located next to the golf course, it can offer some push over the scattered rocks on a good Northwest swell, especially when the wind is coming from the South. Just keep in mind that it can be a bit capricious, so it might take some patience to find the sweet spot. If you're feeling adventurous, the Dame Jouanne ledge on the western headland presents a challenge for more experienced surfers, but it's definitely something to be wary of.

Surf reports and surf forecasts nearby Les Longchamps

Vazon Bay - Reef
Unknown Region, Unknown Country
Reef break
Fri 31
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Vazon Bay - Centres
Unknown Region, Unknown Country
Beach break
Fri 31
Sat 1
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Vazon Bay - Beach
Unknown Region, Unknown Country
Beach break
Fri 31
Sat 1
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Watersplash
Unknown Region, Unknown Country
Beach break
Fri 31
Sat 1
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Le Rozel
Normandy, France
Beach break
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
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Cap Fréhel
Brittany, France
Beach break
Fri 31
Sat 1
Sun 2
Mon 3
Tue 4
Wed 5
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Fri 7
Sat 8
Sun 9
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Tue 11
Hatainville
Normandy, France
Beach break
Fri 31
Sat 1
Sun 2
Mon 3
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Sat 8
Sun 9
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Tue 11
Les Longchamps
Unknown Region, Unknown Country
Beach break
Fri 31
Sat 1
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Plage du Sillon
Brittany, France
Beach break
Fri 31
Sat 1
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Mon 3
Tue 4
Wed 5
Thu 6
Fri 7
Sat 8
Sun 9
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Tue 11
Carolles
Normandy, France
Beach break
Fri 31
Sat 1
Sun 2
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Wed 5
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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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Confidence

Confidence tells you how much the weather models agree on the forecast.

  • High confidence: Models agree closely; forecast is reliable.
  • Medium confidence: Some disagreement; conditions may shift slightly.
  • Low confidence: Models diverge; treat forecast with caution.

We calculate the wind confidence by comparing wind speed, gust and direction from multiple models (like GFS, ECMWF, Arome, and Harmonie) and seeing how closely they match. For wave certainty we compare height, period and direction, also on multiple models. 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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