Forecasting
Global ocean state & wave intelligence
Copernicus Marine Service combines satellite observations with numerical ocean models to deliver wave height, swell partitions, sea state, and marine weather layers trusted by researchers, coast guards, and offshore operators worldwide. It is the backbone of our offshore swell picture before we translate it into surf-facing forecasts.
Seafloor depth you can trust near the coast
The General Bathymetric Chart of the Oceans (GEBCO) publishes a continuously updated global bathymetric grid. Shelf geometry, channels, and underwater slopes steer how swell refracts and shoals, so high-quality bathymetry is non-negotiable.
Wind, sky, and beach-level context
OpenWeather supplies worldwide atmospheric layers (wind fields, cloud cover, temperatures, and indices) that we blend with marine outputs so sessions aren't judged on swell alone: cross-shore wind and local weather matter just as much in the lineup.
Precision tides for timing take-offs
Marea focuses on high-resolution tidal surfaces and coastal water levels via APIs built for marine apps. Reliable highs, lows, and tidal currents keep dawn patrol and afternoon sessions inside realistic windows at reef and beach breaks.
Community-built coastlines & places
OpenStreetMap is the collaborative map of the planet: coastlines, points of interest, paths, and infrastructure maintained by thousands of contributors. We lean on OSM where open geographic context improves orientation without locking you into proprietary basemap stacks.
Enterprise-grade basemaps
Esri's ArcGIS platform delivers authoritative cartography, imagery, and spatial services used by governments and utilities worldwide. Where our interface calls for polished basemaps and geographic scaffolding, ArcGIS helps the experience feel as serious as the forecast underneath.
Our physics-assisted pipeline ingests each spot's orientation and bathymetric footprint, then weighs swell energy, period direction, local wind, and tidal stage to produce the surf rating you see on the dashboard.
Forecasting surf will always involve judgement calls; these partners supply the observational and model rigour that keeps those calls honest. For legal notices about using SURF NEXT, see our Terms of Service and About pages.
