Today
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At Castro Marina the sea changes with the day's wind: the calm-sea index above runs from 0 to 100 and already accounts for the exact exposure of this stretch of coast, not the open sea. Above 70 it is pleasant, below 40 it is better to pick another beach.
The months with the calmest sea and least rain are July, August, June, based on 5 years of Copernicus data. In peak summer the sea is almost always swimmable: what matters most is the wind on the day.
Castro Marina faces SE: when the wind comes from land the sea stays flat, when it comes from the open sea it picks up. The index above already accounts for the current direction.
Height in metres · the colour tells the sea state here at that hour · below: direction and wind (km/h)
The arrow shows where the waves are heading. Data from the European marine model, adjusted for this beach's exposure.
