São Jacinto

16°C Water temp · Jun 8

Portugal Coastal 1 - Excellent 16°C

Satellite image of SÃO JACINTO — Satellite image © Esri

São Jacinto is a bathing water located on the mesotidal exposed Atlantic Coast with very energetic hydrodynamics. The beach is situated within the Natural Reserve of São Jacinto Dunes and is classified as a non-urban beach with intensive use. Infrastructure, equipment, and various services are available at this location.

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Water

Atlantic Ocean, water body identified as CWB-I-2, part of the Vouga river basin. Mesotidal exposed coastal area with very energetic hydrodynamics.

Location

Municipality of Aveiro, Portugal. Monitoring point coordinates: Latitude 40.6698°, Longitude -8.7480°.

Facilities

Infrastructure and equipment available. An alert system monitors water quality and provides information to bathers about necessary measures if quality changes occur.

Season

Official bathing season runs from June 7 to September 14, 2025. Sampling frequency is once every two weeks.

Water Quality

Water quality classified according to Portuguese legislation (Decreto-Lei 135/09, amended by Decreto-Lei 113/2012). Potential microbiological pollution sources include port and urban activities, urban effluents from a submarine outfall north of the bathing water, beach activity waste, marine litter, bird colonies, and high user numbers. No short-term pollution episodes occurred during the 2024 bathing season.

Risks

Phytoplankton proliferation is likely. Cyanobacteria and macroalgae proliferation are unlikely. Potential pollution sources from urban and port activities exist.