Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Photo: grassrootsgroundswell / Wikimedia Commons · CC BY 2.0
Today at Mers-les-Bains Beach: Good for swimming — 79/100 for expert level. Wind 5 kn E · Tide -2.2 to 1.2 m. Best window around 13:00 UTC. Today's conditions at Mers-les-Bains Beach: 0.3m waves with light offshore wind. E-Foiling looks Excellent in the midday, with Paddleboarding 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.
Mers-les-Bains Beach faces NW, 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 5 kn. Light enough that the surface should stay workable for swimming.
Over the published window Mers-les-Bains Beach clears 60/100 for swimming 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, 8 of 10 daylight hours clear that line at Intermediate.
Among the 31 scored spots within reach today, Mers-les-Bains Beach ranks 14th 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 north-facing Channel beach break with steep shingle-and-pebble shore turning sandy at low tide, backed by 90-105 m chalk cliffs. Heavy shorebreak, cross-currents, and submerged rocks make entry demanding; it works best mid-ebb on NW swell with SE wind, windsurfing also viable. Kitesurfing is banned year-round and cliff bases must be avoided. A supervised zone runs July-August at the rescue post; tidal range is around 9.5 m.
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Get the free Mers-les-Bains Beach widgetToday's conditions for Mers-les-Bains Beach 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 Mers-les-Bains Beach today: 5 kn E (gusting 14 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 Mers-les-Bains Beach today: 0.6 m, 7 s period from W, mushy 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 Mers-les-Bains Beach today is around 14:00 UTC, when conditions score 75/100 for intermediate level. Conditions can shift by the hour — the 4Shor app shows the full 24-hour score chart.
For beginners, Mers-les-Bains Beach scores 79/100 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.
Mers-les-Bains Beach is scored for Surfing, Windsurfing, 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.
Mers-les-Bains Beach is a coastal location near Mers-les-Bains 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 Mers-les-Bains Beach, 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.
