Porsmilin

18.3°C Water temp · Sep 11

France Coastal 2 - Good 18.3°C

Satellite image of PORSMILIN — Satellite image © Esri

Plage de Porsmilin is a bathing beach located in the municipalities of Locmaria-Plouzané and Plougonvelin in the Finistère department of Brittany, France. The beach is situated on the Atlantic coast with coordinates 48.355566, -4.679687. It is subject to official health and environmental monitoring as part of European bathing water regulations. The beach profile was revised in 2025 to assess water quality and identify potential sources of bacterial pollution affecting bathers.

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Water

Atlantic coastal bathing beach. The beach has both northern and southern sections with a bathymetry survey included in the profile.

Location

Plage de Porsmilin is located in the municipalities of Locmaria-Plouzané and Plougonvelin in Finistère, Brittany. The beach is accessible via a slipway (cale). Coordinates: 48.355566, -4.679687.

Facilities

The beach is equipped with a slipway (cale) for access and waste bins (poubelles).

Season

Monitoring occurs during the official bathing season, with quality classifications determined at the end of the season.

Water Quality

Water quality is monitored for bacterial indicators of fecal contamination. Bacteriological monitoring data from 2012-2022 is documented. Quality classification follows European bathing water regulations with results determined at the end of each bathing season.

Risks

Potential bacterial pollution sources identified include: agricultural runoff from surrounding lands, combined sewer systems and stormwater drainage networks, non-collective sanitation installations, livestock grazing and watering, and a stream (Ruisseau de Porsmilin) with stormwater outfall. Pollution events are associated with rainfall, requiring active management and potential beach closure procedures.