Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
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Today at Plage du Trez Hir: Excellent for e-foiling — 82/100 for expert level. Wind 9 kn SW · Tide -1.2 to 0.7 m. Best window around 01:00 UTC. Today's conditions at Plage du Trez Hir: 1.3m waves with moderate cross-shore wind. Kite Foiling looks Epic! in the midday, 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 du Trez Hir faces SE, tucked away from the prevailing westerly swell — the aspect that gives e-foiling the flat, sheltered water it needs more often than an exposed coast would.
Today's wind is cross-shore at 9 kn. At that strength expect a textured surface for e-foiling, and the shelter of the bay to matter more than the forecast number.
Over the published window Plage du Trez Hir clears 60/100 for e-foiling at Advanced, Expert levels — that is who this spot is for on this sport. Today, 0 of 10 daylight hours clear that line at Intermediate.
Among the 31 scored spots within reach today, Plage du Trez Hir ranks 13th for e-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 broad, 1.2 km sandy beach with rocky outcrops at both ends and shifting sandbars, backed by a fort on a nearby island. Mid-tide brings mainly left-handers, with occasional tubular rights at high tide; conditions are considered beginner-friendly for windsurfing when swell is small. Kiting is banned in summer due to bather numbers and unsafe at high tide when the beach narrows. Supervised bathing runs July-August. Tidal range reaches up to 8 metres.
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Wind at Plage du Trez Hir today: 9 kn SW (gusting 32 kn). Wind direction relative to the shore affects e-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 Trez Hir today: 1.7 m, 12 s period from N, peeling character. 4Shor derives nearshore wave conditions from ECMWF IFS 9-km atmospheric data and the IBI regional ocean model, updated hourly.
For beginners, Plage du Trez Hir scores 69/100 today for surfing — Good. 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 Trez Hir 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 Trez Hir is a coastal location near Kerdivizien 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 Trez Hir, 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.
