Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Photo: Moreau.henri / Wikimedia Commons · CC BY 4.0
Today at Plage de Treompan: Epic! for windsurfing — 93/100 for advanced level. Wind 8 kn SE · Waves 1.6 m, 11 s · Tide -1.4 to 0.6 m. Best window around 00:00 UTC. Today's conditions at Plage de Treompan: 1.5m waves with light offshore wind. Kite Foiling looks Epic! in the morning, with Wing Foiling also worth considering. Water temperature is 15°C / 60°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 de Treompan faces NW, open to the prevailing westerlies, so the wind arrives off the water rather than filtered through the land — the clean, steady flow windsurfing wants, and the reason gusts here are sea breezes rather than land turbulence.
Today's wind is offshore at 8 kn. Offshore is the one to be careful with for windsurfing — a failure blows you away from the beach, so it is a spot for a safety boat or a change of plan rather than a solo session.
Over the published window Plage de Treompan clears 60/100 for windsurfing at Intermediate, Advanced, Expert levels — that is who this spot is for on this sport. Today, 1 of 10 daylight hours clear that line at Intermediate.
Among the 31 scored spots within reach today, Plage de Treompan ranks 11th for windsurfing. 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 3km white-sand beach backed by protected dunes on the Iroise coast, facing northwest. Summer brings flat water for kitesurfing, windsurfing, and sand yachting; autumn and winter Atlantic swell turns it into a beach break with wave-kiting for experienced riders. A large rock, offshore islets, and shallow low-tide water are hazards. Kitesurfers must launch from an adjacent beach 300 metres away. Unsupervised; a sanitary-zone order covers the watershed.
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Get the free Plage de Treompan widgetToday's conditions for Plage de Treompan 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 de Treompan today: 8 kn SE (gusting 27 kn). Wind direction relative to the shore affects windsurfing 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 de Treompan today: 1.6 m, 11 s period from W, peeling 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 windsurfing at Plage de Treompan today is around 04:00 UTC, when conditions score 70/100 for intermediate level. Conditions can shift by the hour — the 4Shor app shows the full 24-hour score chart.
For beginners, Plage de Treompan scores 25/100 today for surfing — Poor. 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 de Treompan 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 de Treompan is a coastal location near Theven Cléguerien 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 de Treompan, 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.
