Granja

18.4°C Water temp · Sep 9

Portugal Coastal 1 - Excellent 18.4°C

Satellite image of GRANJA — Satellite image © Esri

Granja is an urban beach with a small sand strip bordered by an urban waterfront. The beach has a sandy and rocky morphology and is strongly eroded. It is located in Vila Nova de Gaia along the Douro River basin.

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Water

Douro River basin coastal water body designated PTCOST3.

Location

Vila Nova de Gaia municipality. Monitoring point coordinates: Latitude 41.04°, Longitude -8.65028°.

Season

14 June to 14 September 2025.

Water Quality

Water quality is monitored every 3 weeks. No days of bathing prohibition or advisory occurred due to short-term pollution events in the 2024 bathing season. Potential microbiological pollution sources include faecal contamination from the local sewerage network and a creek (ribeira da Granja) that empties near the beach.

Risks

Short-term pollution is unlikely but may occur due to excessive flow of a tributary during rainfall events, which can entrain microbiological loads. Untreated effluent discharge may also occur if the wastewater pumping station malfunctions. Cyanobacteria have a moderate proliferation potential with a history of bloom occurrence. Macroalgae and phytoplankton have low proliferation potential with no history of occurrence.