Live wave height, wind and water temp — plus an 8-day forecast scored 0–100 for every sport.
Photo: Enrique Íñiguez Rodríguez (Qoan) Credit information This work was created by Enr / Wikimedia Commons · CC BY-SA 4.0
Today at Castlerock Beach: Epic! for surfing — 96/100 for beginner level. Wind 12 kn SE · Waves 1.5 m, 15 s · Tide -0.7 to -0.1 m. Best window around 06:00 UTC. Today's conditions at Castlerock Beach: 1.2m waves with moderate offshore wind. Surfing looks Epic! in the morning, with Windsurfing also worth considering. Water temperature is 13°C / 55°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 sheltered, dune-backed sandy beach about 1 km long, calm and family-friendly in summer. In autumn and winter it becomes a modest beach/jetty break, best around mid tide on a north-west groundswell with a south offshore wind; a right-hander breaks off a pier at the river mouth, where rip currents are a hazard. Dogs restricted 1 June-15 September. Seasonal lifeguards patrol July-August; nearest RNLI station is Portrush.
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Get the free Castlerock Beach widgetToday's conditions for Castlerock 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.
Castlerock Beach scores 93/100 today for surfing at intermediate level — Epic!. Wind 12 kn SE · Waves 1.5 m, 15 s · Tide -0.7 to -0.1 m. Best window around 22:00 UTC. Scores are updated hourly by 4Shor ShorSense™.
Wind at Castlerock Beach today: 12 kn SE (gusting 25 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 Castlerock Beach today: 1.5 m, 15 s period from NW, peeling 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 Castlerock Beach today is around 22:00 UTC, when conditions score 93/100 for intermediate level. Conditions can shift by the hour — the 4Shor app shows the full 24-hour score chart.
For beginners, Castlerock Beach scores 96/100 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.
Castlerock 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.
Castlerock Beach is a coastal location near Castlerock 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 Castlerock 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.
