Rio Sieira / As Furnas is one of the core Porto do Son surf beaches, a long coastal setup in a pristine Galician setting where local surf schools and the nearby surf house keep it active year-round. Get the latest surfing conditions, forecast, and tide details for Playa de Rio Sieira / As Furnas in Galicia.
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Lineup Insights
The Wave
Rio Sieira and As Furnas sit side by side in Porto do Son, so the beach is best read as a local surf zone rather than a single tiny peak.
Low tide is the best window, though mid and high can still give good surfing if the beach has shape.
Lineup Guide
Rio Sieira and As Furnas sit side by side in Porto do Son, so the beach is best read as a local surf zone rather than a single tiny peak.
Respect the local peak and watch for submerged hazards during lower tidal stages.
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