Rio De Moinhos

14.4°C Water temp · Jun 8

Portugal Coastal 1 - Excellent 14.4°C

Satellite image of RIO DE MOINHOS — Satellite image © Esri

Rio de Moinhos is a heavily eroded rural beach with numerous rocky outcrops located in Esposende municipality along the Cávado River basin. The neighbouring dune zones have been progressively destroyed by sea action. The beach is monitored for bathing water quality and swimming is permitted during the official bathing season.

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Water

Coastal water body (PTCOST2) in the Cávado River basin.

Location

Esposende municipality. Monitoring point coordinates: latitude 41.565548°, longitude -8.797368°.

Season

14 June to 14 September 2025.

Water Quality

Water quality is classified according to Decreto-Lei 135/2009 as amended by Decreto-Lei 113/2012. Sampling frequency is every 3 weeks. No days of bathing prohibition or advisory due to short-term pollution occurred during the 2024 bathing season.

Risks

Short-term pollution may occur due to excessive flow of tributary streams (ribeira do Peralto) during rainfall events, leading to microbiological contamination, or due to malfunction of the sewage treatment plant with discharge of untreated effluent. Faecal contamination may originate from the tributary, other tributaries, or sewerage treatment plants. Cyanobacteria has a moderate potential for proliferation with historical records of blooms. Macroalgae and phytoplankton have low proliferation potential with no historical occurrence.