Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Photo: ClwydianRanger / Wikimedia Commons · CC BY-SA 4.0
Today at Traeth Nefyn: Epic! for kite foiling — 96/100 for expert level. Wind 12 kn E · Tide -1.0 to 0.2 m. Best window around 01:00 UTC. Today's conditions at Traeth Nefyn: flat with moderate offshore wind. Kite Foiling looks Epic! in the late morning, with Wing Foiling also worth considering. Water temperature is 15°C / 59°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.
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.
This is a sheltered, predominantly sandy bay, popular with swimmers, kayakers, windsurfers, and kite surfers in calm water, backed by a steep lane and small car park. Rock pools are exposed at low tide near the headland. The beach-and-point break is inconsistent, coming to life mainly on winter SW swells with SE offshore wind. A boat exclusion zone protects the bay. There is no lifeguard; entry is safest at mid-to-high tide.
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Traeth Nefyn scores 33/100 today for surfing at intermediate level — Poor. Wind 12 kn E · Tide -1.0 to 0.2 m. Scores are updated hourly by 4Shor ShorSense™.
Wind at Traeth Nefyn today: 12 kn E (gusting 27 kn). Wind direction relative to the shore affects surfing 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 Traeth Nefyn today: 0.1 m, 10 s period from NE, flat character. 4Shor derives nearshore wave conditions from ECMWF IFS 9-km atmospheric data and the IBI regional ocean model, updated hourly.
For beginners, Traeth Nefyn scores 98/100 today for wing foiling — Epic!. 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.
Traeth Nefyn 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.
Traeth Nefyn is a coastal location near Nefyn in United Kingdom. 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 Traeth Nefyn, 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.
