Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Photo: Paul E Smith / Wikimedia Commons · CC BY-SA 2.0
Today at Porthtowan Beach: Excellent for kite foiling — 83/100 for expert level. Wind 6 kn E · Waves 1.0 m, 14 s · Tide -1.5 to 0.7 m. Best window around 11:00 UTC. Today's conditions at Porthtowan Beach: 0.8m waves with light offshore wind. Kite Foiling looks Excellent in the late morning, with E-Foiling 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.
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 wide, NW-facing sandy beach in the St Agnes AONB, with a consistent, exposed beach break giving lefts and rights year-round, best in autumn/winter. Low tide brings punchy, hollow waves and high tide a dumping shorebreak; hazards include rip currents, submerged rocks, and water-quality advisories. At low tide it stretches nearly 1.5 miles to merge with the beach next door. RNLI lifeguards patrol May-September. A dog ban runs 15 May-30 September, 10am-6pm.
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Get the free Porthtowan Beach widgetToday's conditions for Porthtowan 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.
Porthtowan Beach scores 91/100 today for surfing at intermediate level — Epic!. Wind 6 kn E · Waves 1.0 m, 14 s · Tide -1.5 to 0.7 m. Best window around 22:00 UTC. Scores are updated hourly by 4Shor ShorSense™.
Wind at Porthtowan Beach today: 6 kn E (gusting 17 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 Porthtowan Beach today: 1.0 m, 14 s period from NW, closing 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 Porthtowan Beach today is around 22:00 UTC, when conditions score 91/100 for intermediate level. Conditions can shift by the hour — the 4Shor app shows the full 24-hour score chart.
For beginners, Porthtowan Beach scores 97/100 today for surfing — 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.
Porthtowan Beach 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.
Porthtowan Beach is a coastal location near Porthtowan 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 Porthtowan 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.
