Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Today at Plage de l’Arène: Good for swimming — 71/100 for expert level. Wind 6 kn S · Tide -0.4 to -0.2 m. Best window around 07:00 UTC. Today's conditions at Plage de l’Arène: 1.4m waves with light cross-shore wind. E-Foiling looks Good in the morning, with Swimming also worth considering. Water temperature is 22°C / 72°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 l’Arène faces SW, 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-shore at 6 kn. Light enough that the surface should stay workable for swimming.
Over the published window Plage de l’Arène clears 60/100 for swimming at Expert level — that is who this spot is for on this sport. Today, 0 of 11 daylight hours clear that line at Intermediate.
Among the 31 scored spots within reach today, Plage de l’Arène ranks 9th 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.
A small, wild pebble-and-rock cove at the base of coastal cliffs, reached by a staircase from a car park within the Calanques National Park. The seabed is rock and pebble over sand, a rock/reef break with generally small, inconsistent waves; summer is typically flat. Rich marine life makes it popular for snorkelling and diving; rockfall from the cliffs above is a noted hazard. Unsupervised, with no lifeguard post; tides are negligible.
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Wind at Plage de l’Arène today: 6 kn S (gusting 36 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.
For beginners, Plage de l’Arène scores 15/100 today for e-foiling — Don't Bother. 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 l’Arène is scored for E-Foiling, Swimming 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 l’Arène is a coastal location near Cassis 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 l’Arène, 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.
