Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
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Today at Traeth Trearddur: Good for swimming — 79/100 for expert level. Wind 7 kn E · Tide -1.1 to 0.4 m. Best window around 20:00 UTC. Today's conditions at Traeth Trearddur: 0.4m waves with light offshore wind. Kite Foiling looks Epic! in the midday, with E-Foiling also worth considering. Water temperature is 15°C / 58°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 Trearddur 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-offshore at 7 kn. Light enough that the surface should stay workable for swimming.
Over the published window Traeth Trearddur 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, 7 of 10 daylight hours clear that line at Intermediate.
Among the 31 scored spots within reach today, Traeth Trearddur ranks 2nd 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.
This is a Blue Flag sandy bay, sheltered and gently shelving with soft golden sand, doubling as a hub for windsurfing, kayaking, dinghy sailing, bodyboarding, and jet-ski. The quite exposed beach break offers left and right waves, best on a SW swell with NE offshore wind, most consistent in winter; rips and submerged rocks are cited hazards. An RNLI inshore lifeboat station operates on-site year-round, and beach wardens control marine vessels.
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Get the free Traeth Trearddur widgetToday's conditions for Traeth Trearddur 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 Traeth Trearddur today: 7 kn E (gusting 21 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 Traeth Trearddur today: 0.4 m, 5 s period from SW, 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 Traeth Trearddur today is around 19:00 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, Traeth Trearddur scores 77/100 today for kite 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 Trearddur 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 Trearddur is a coastal location near Trearddur 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 Trearddur, 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.
