Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Photo: rene boulay / Wikimedia Commons · CC BY-SA 3.0
Today at Plage du Fort de Penthièvre: Good for swimming — 77/100 for expert level. Wind 7 kn NE · Tide -1.1 to 0.2 m. Best window around 04:00 UTC. Today's conditions at Plage du Fort de Penthièvre: 0.5m waves with moderate offshore wind. Kite Foiling looks Excellent in the midday, with E-Foiling also worth considering. Water temperature is 16°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 Fort de Penthièvre faces W, open to the prevailing swell and wind. For swimming that is the hard direction: expect the surface to be workable only when the forecast genuinely drops, not on an average day.
Today's wind is cross-offshore at 7 kn. Light enough that the surface should stay workable for swimming.
Over the published window Plage du Fort de Penthièvre clears 60/100 for swimming 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 29 scored spots within reach today, Plage du Fort de Penthièvre ranks 22nd for swimming. 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.
The largest beach on the peninsula — an exposed beach backed by dunes on the ocean side of a narrow isthmus, below an active Army fort closed to the public except mid-September Heritage Days. A sandy beach break with left and right waves, best with southwest swell and offshore northeast wind. The bay side offers flat water for kite freestyle, though oyster beds are a cut hazard. Kite sports are zoned, forbidden at high tide.
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Get the free Plage du Fort de Penthièvre widgetToday's conditions for Plage du Fort de Penthièvre 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 Fort de Penthièvre today: 7 kn NE (gusting 19 kn). Wind direction relative to the shore affects swimming 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 Fort de Penthièvre today: 0.6 m, 12 s period from NW, closing 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 swimming at Plage du Fort de Penthièvre today is around 06:00 UTC, when conditions score 74/100 for intermediate level. Conditions can shift by the hour — the 4Shor app shows the full 24-hour score chart.
For beginners, Plage du Fort de Penthièvre scores 77/100 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 Fort de Penthièvre 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 Fort de Penthièvre is a coastal location near Kerhostin 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 Fort de Penthièvre, 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.
