Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Photo: Lekemok / Wikimedia Commons · CC BY-SA 3.0
Today at Plage de Port-Lenn: Good for kite surfing — 71/100 for beginner level. Wind 5 kn E · Tide -1.1 to 0.2 m. Best window around 23:00 UTC. Today's conditions at Plage de Port-Lenn: flat with light offshore wind. Kite Foiling looks Epic! in the afternoon, with E-Foiling also worth considering. Water temperature is 16°C / 61°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 Port-Lenn faces W, open to the prevailing westerlies, so the wind arrives off the water rather than filtered through the land — the clean, steady flow kite surfing wants, and the reason gusts here are sea breezes rather than land turbulence.
Today's wind is offshore at 5 kn. Offshore is the one to be careful with for kite surfing — 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 Port-Lenn clears 60/100 for kite surfing 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, 2 of 10 daylight hours clear that line at Intermediate.
Among the 27 scored spots within reach today, Plage de Port-Lenn ranks 26th for kite surfing. 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 small, partially sheltered beach of mixed sand and pebble at the entrance to the Gulf of Morbihan, overlooking a fishing harbour with moored boats. The western side is sandy, the eastern side mostly pebbly and more exposed at low tide; numerous mooring buoys offshore are a hazard for swimmers. It's a calm-water setting rather than a surf spot. Dogs are banned April 15–September 15 and shellfish gathering is prohibited year-round.
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Wind at Plage de Port-Lenn today: 5 kn E (gusting 15 kn). Wind direction relative to the shore affects kite surfing conditions significantly — offshore winds produce cleaner, glassier surfaces while onshore winds add chop. These are daily averages; the 4Shor app shows hourly detail.
The best window for kite surfing at Plage de Port-Lenn today is around 12:00 UTC, when conditions score 61/100 for intermediate level. Conditions can shift by the hour — the 4Shor app shows the full 24-hour score chart.
For beginners, Plage de Port-Lenn scores 82/100 today for windsurfing — Excellent. 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 Port-Lenn 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 Port-Lenn is a coastal location near Port Navalo 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 Port-Lenn, 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.
