Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Today at Plage du Gros Jonc: Excellent for wing foiling — 87/100 for advanced level. Wind 9 kn W · Waves 0.4 m, 17 s · Tide -1.3 to 0.4 m. Best window around 14:00 UTC. Today's conditions at Plage du Gros Jonc: 0.4m waves with light offshore wind. Kite Foiling looks Epic! in the midday, with Wing Foiling also worth considering. Water temperature is 17°C / 63°F.
Forecast updated · ShorSense™
Today plus the next two days are free for everyone — scored in 3-hour windows, just like the app. The full 8-day forecast lives in the 4Shor app.
Plage du Gros Jonc faces NE, so the prevailing westerly comes over the land before it reaches you. For wing foiling that usually means a gustier, less predictable flow than the raw wind speed suggests.
Today's wind is cross-offshore at 9 kn. Leaning offshore, so a failure drifts you away from the beach rather than back to it — rideable for wing foiling, but not the direction to push your luck in.
Over the published window Plage du Gros Jonc clears 60/100 for wing foiling at every ability from Beginner to Expert — an unusually broad spot, which normally means a range of conditions rather than one narrow sweet spot. Today, 7 of 10 daylight hours clear that line at Intermediate.
Among the 31 scored spots within reach today, Plage du Gros Jonc ranks 11th for wing foiling. The order changes by discipline: the same conditions that put a spot top for one sport can drop it down the list for another.
Satellite-derived bathymetry with 10 m pixels and 10 cm vertical resolution out to ~40 m depth. The shape of the seabed is what determines where and how waves break.
Most apps run a single global model at 9–25 km. We blend regional NWP from national meteorological offices at 1.3–2 km — UK Met Office UKV, Météo-France AROME HD, ItaliaMeteo ICON-2I — with ECMWF IFS for the 8-day horizon. Finer resolution means the sea breeze, cliff funnelling and bay shadowing that changes everything for a session.
A nearshore wave model propagates the spectrum across the bathymetric mesh — modelling refraction, shoaling, dissipation, focusing and breaking as it goes. Most apps stop at swell + wind. We go further.
10 sport models × 4 ability levels weight wave height, period, wind, tide and breaking conditions differently — calibrated against ridden sessions so the scores mean what they say.
A sandy, sports-oriented beach on the island's northern tip, facing NE over a tidal strait. A sailing club runs a watersports zone for kitesurfing, wingfoiling, windsurfing, sailing, kayak, SUP and e-foil. Sandy seabed with some large stones; fish weirs sit at the point. Water recedes dramatically at low tide, making swimming impossible then - best entry is mid-rising tide to high tide. Lifeguarded in season; parking is very limited.
Put live Plage du Gros Jonc conditions on your own website — a free embeddable widget, updated hourly, in three sizes. No account needed.
Get the free Plage du Gros Jonc widgetToday's conditions for Plage du Gros Jonc are free. Unlock the full 8-day forecast and per-sport alerts that ping you when this location is about to fire. more than 2,500 European locations, scored from the seabed up.
Wind at Plage du Gros Jonc today: 9 kn W (gusting 27 kn). Wind direction relative to the shore affects wing foiling conditions significantly — offshore winds produce cleaner, glassier surfaces while onshore winds add chop. These are daily averages; the 4Shor app shows hourly detail.
Waves at Plage du Gros Jonc today: 0.4 m, 17 s period from N, mushy character. 4Shor derives nearshore wave conditions from ECMWF IFS 9-km atmospheric data and the IBI regional ocean model, updated hourly.
The best window for wing foiling at Plage du Gros Jonc today is around 06:00 UTC, when conditions score 88/100 for intermediate level. Conditions can shift by the hour — the 4Shor app shows the full 24-hour score chart.
For beginners, Plage du Gros Jonc scores 90/100 today for kite foiling — Epic!. A score of 65–79 is Good for a beginner; 80+ is Excellent (90+ is Epic!); below 45 the session is usually not worth it. 4Shor scores every location across Beginner, Intermediate, Advanced and Expert levels.
Plage du Gros Jonc is scored for Surfing, Windsurfing, Kite Surfing, Kite Foiling, Wing Foiling, E-Foiling, Paddleboarding, Swimming, Kayaking, Canoeing in the 4Shor forecast system. Conditions are rated Beginner through Expert for each sport, updated every hour, so you always know whether the session is worth the drive.
Plage du Gros Jonc is a coastal location near La Vigne de la Redoute in France. It is one of more than 2,500 European water-sport locations scored daily by 4Shor.
4Shor's ShorSense™ system combines satellite-derived seafloor mapping, nearshore wave models, wind and tide data to generate a hyper-local forecast. At Plage du Gros Jonc, conditions are scored hourly on a 0–100 scale for each sport and ability level. A score of 80+ means Excellent (90+ Epic!); 65–79 is Good; below 45 the session is usually not worth the drive.
Questions about 4Shor itself — accuracy, pricing, the free trial — are answered on the FAQ page.
