Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Photo: Keith Ruffles / Wikimedia Commons · CC BY 3.0
Today at Traeth Porthor: Epic! for wing foiling — 95/100 for expert level. Wind 14 kn E · Waves 0.7 m, 10 s · Tide -0.9 to 0.2 m. Best window around 05:00 UTC. Today's conditions at Traeth Porthor: 0.4m waves with strong offshore wind. Wing Foiling looks Epic! in the morning, with Kite 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 small, sheltered sandy cove, National Trust managed, with fine-grained sand that squeaks underfoot. It's a fairly exposed, inconsistent beach break with left and right waves, suited to surfing, bodyboarding, and kayaking, best in winter and early spring on a SW swell with SE offshore wind. Submerged rocks sit in the water and strong rips are present; surfing is best at high tide. There is no lifeguard service; take extra care before entering.
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Traeth Porthor scores 46/100 today for surfing at intermediate level — Okay. Wind 14 kn E · Waves 0.7 m, 10 s · Tide -0.9 to 0.2 m. Best window around 22:00 UTC. Scores are updated hourly by 4Shor ShorSense™.
Wind at Traeth Porthor today: 14 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 Porthor today: 0.7 m, 10 s period from S, 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 surfing at Traeth Porthor today is around 22:00 UTC, when conditions score 46/100 for intermediate level. Conditions can shift by the hour — the 4Shor app shows the full 24-hour score chart.
For beginners, Traeth Porthor scores 76/100 today for wing foiling — 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.
Traeth Porthor 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 Porthor is a coastal location near Rhydlios 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 Porthor, 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.
