Coast, Oeiras e São Julião da Barra, Paço de Arcos e Caxias, Grande Lisboa. We calculate high and low water here from an ocean tide model — accurate to about 5 cm on open coasts, considerably less in tidal flats and river mouths. Under the EU Bathing Water Directive the water quality in the 2025 season was classified as sufficient.
Under the EU Bathing Water Directive the water quality in the 2025 season was classified as sufficient.
Water temperature 18.9 °C — NOAA Geo-Polar Blended (5 km), measured 19/09/2026 13:00.
Low tide at 18:31, High tide at 00:40 (Local time at the spot).
Swimming spots in Oeiras e São Julião da Barra, Paço de Arcos e Caxias · Grande Lisboa · Swimming spots in Portugal · Atlantic Ocean · On the map