Port-Louis (Grande Terre) Surf Forecast

Tide
⏱️s.
⚡️kJ
Tijdzone:
America/Guadeloupe
Wind: SN UNITY Atmos
(20260314 18z)
Golven: SN UNITY WAVE
(20260314 18z)

Golfopbouw

Swell 1Swell 2Swell 3Wind waves

Port-Louis (Grande Terre) Surf Forecast Eigenschappen

Swell venster
N - NO
(Beste uit N)
Swell hoogte
3ft - 10ft
Swell breekt over
Oneven Rif, Zand
Golftypes
Riff
Golfrichtingen
Links, Rechts
Wind venster
O - O
(Offshore uit O)
Werkende getijden
Laag, Mid, Hoog
Niveau
Gevorderde

Port-Louis (Grande Terre) Surf Forecast Gids

Port-Louis, located on the west coast of Grande Terre, is a surf spot that’s tucked behind a headland. It’s not the most consistent spot, but it has its moments, especially during winter when the north swells come rolling in. The view from the shoreline, near the pretty Souffleur Plage, adds a nice backdrop while you wait for the waves to kick in. Just be prepared for a good crowd on the prime days.

When conditions align, Port-Louis can serve up some long, point-style right-handers along with shorter, faster lefts. The waves work best with a moderate-sized north to northeast groundswell, and they can handle swell sizes around 3ft (about 0.9 meters). The uneven reef and sandy bottom create soft, forgiving walls that taper off nicely, giving you a ride that feels pretty great, especially when those bigger swells link up with the Pointe de Antigues further north. The wind usually blows offshore thanks to the location, but an east wind is what you’ll want to look for to really enjoy the surf.

If you're planning to surf here, be aware that it can get crowded, especially when the forecast is looking good. On days like that, you’ll be sharing the lineup with a lot of other surfers, so be ready for some paddling. It’s a spot that works for intermediate surfers, and while you might have to deal with some spiky urchins lurking around, the experience can be well worth it when the waves are on point.

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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.