Sea temperature todayPortugal

Sea temperatures along Portugal's Atlantic Europe coast vary sharply between the mainland and the islands. While swimming temperatures are rarely sustained on the continent, with the August average reaching just 19.7 °C in the Algarve and September waters sitting at 17.9 °C at Praia do Tamariz, the island of Madeira offers five swimmable months, warming to a 23.6 °C average in September.