Start with energy
Wave height and period indicate how much offshore energy is approaching, but not the exact breaking wave at a beach.
Watch wave energy, swell direction and coastal wind change around mainland Portugal, Madeira and the Azores, then check whether Nazaré could produce a worthwhile big-wave viewing window.
Each small dot marks the real coastal location. Its connected offshore label shows the forecast value without hiding a neighbouring place.
The dots mark each coast. On a smaller screen, only the place you select shows an expanded forecast label.
Wave height and period indicate how much offshore energy is approaching, but not the exact breaking wave at a beach.
Headlands, islands and beach orientation decide whether a swell reaches a particular break or passes it by.
Check tide, wind, currents, access, lifeguard status and local warnings before deciding whether to enter.
A seven-day travel-planning signal built from hourly offshore wave height, swell period, direction and coastal wind.
Checking the next seven days around Praia do Norte.
Portugal’s coastline changes quickly between beaches. Treat every unfamiliar break as a new place, even when the offshore numbers look familiar.
Look at the tide, wind, currents, access, lifeguard status and any local warning before entering. Offshore wave height is not breaking-wave height.
A nearby surf school or experienced local surfer can explain hazards that a model cannot show, including rocks, rips, channels and safe exit points.
At Nazaré and other exposed coasts, the safest plan may be to stay on an established viewpoint. Respect barriers, closures and maritime authority instructions.
Open-Meteo marine and weather models. Values are planning estimates, refreshed regularly and not suitable for navigation.