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.
Traeth Porthor faces NW, open to the prevailing westerlies, so the wind arrives off the water rather than filtered through the land — the clean, steady flow wing foiling wants, and the reason gusts here are sea breezes rather than land turbulence.
Today's wind is cross-shore at 14 kn. Straight cross-shore is the classic wing foiling direction: it lets you hold a line along the beach rather than fighting to get back to it.
Over the published window Traeth Porthor clears 60/100 for wing foiling 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, 10 of 10 daylight hours clear that line at Intermediate.
Among the 31 scored spots within reach today, Traeth Porthor ranks 11th for wing foiling. 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.
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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Wind at Traeth Porthor today: 14 kn E (gusting 27 kn). Wind direction relative to the shore affects wing foiling 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 wing foiling at Traeth Porthor today is around 02:00 UTC, when conditions score 82/100 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.
