Boca Do Rio

16°C Water temp · Jun 8

Portugal Coastal 1 - Excellent 16°C

Satellite image of BOCA DO RIO — Satellite image © Esri

Boca do Rio is a coastal bathing beach with restricted use located in a valley where two temporary watercourses converge. The beach features golden sand and is situated within the Natural Park of Sudoeste Alentejano e Costa Vicentina and a Natura 2000 protected site. The beach extends 138 metres with a tidal range of 3.4–3.5 metres and mean wave height of 1 metre. Winds typically blow from the north to northwest.

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Water

Coastal bathing water body designated CWB-II-5B in the Ribeiras do Algarve river basin. Beach length: 138 metres. Tidal range: 3.4–3.5 metres. Mean wave height: 1 metre.

Location

Vila do Bispo municipality. Monitoring point coordinates: Latitude 37.0659°, Longitude -8.8089° (ETRS 89).

Season

1 June to 30 September 2025. Monthly sampling frequency.

Water Quality

Water quality classification for 2024 complies with Decreto-Lei 135/09. No days of bathing prohibition or advisory against bathing due to short-term pollution events occurred during the 2024 bathing season. Short-term pollution is scarce but microbiological contamination may occur due to sporadic malfunction of rainwater drainage systems or heavy rainfall events causing surface run-off and overflows.

Risks

Microbiological contamination may occur due to sporadic malfunction of rainwater drainage systems or heavy rainfall events. Potential proliferation of cyanobacteria is unlikely; macroalgae proliferation is uncommon; phytoplankton proliferation is unlikely.