Measurements:
°C
°F
World Resorts Portugal

Portugal Sea Water Temperature in August

The Portugal resorts with the warmest sea water temperature in August are Graciosa, Madeira and Funchal.

Below you can see a list of all popular Portugal resorts and information about sea water temperature in August for the last two years.

Resort Name August 2025 August 2024 August 2023
Graciosa 78.2°F 80.5°F 77.9°F
Madeira 78.0°F 78.4°F 79.6°F
Funchal 78.0°F 78.4°F 79.6°F
Sao Jorge 77.9°F 81.0°F 77.5°F
Corvo Island 77.8°F 81.0°F 78.9°F
Canico 77.8°F 77.9°F 79.5°F
Flores Island 77.7°F 81.3°F 79.2°F
Santa Maria Island 77.5°F 81.2°F 79.4°F
Pico Island 77.3°F 80.2°F 77.6°F
Faial Island 77.2°F 80.2°F 77.7°F
Terceira Island 77.0°F 79.8°F 77.0°F
Ponta Delgada 76.9°F 80.1°F 78.1°F
Sao Miguel 76.7°F 79.9°F 78.1°F
Tavira 76.5°F 74.9°F 73.0°F
Porto Santo Island 76.3°F 77.6°F 78.8°F
Algarve 76.0°F 74.8°F 72.4°F
Faro 76.0°F 74.8°F 72.4°F
Quarteira 75.0°F 73.7°F 70.3°F
Albufeira 74.8°F 72.9°F 69.7°F
Portimao 74.0°F 72.1°F 68.8°F
Alvor 73.8°F 71.6°F 68.5°F
Lagos 73.1°F 69.9°F 67.5°F
Lisbon 72.4°F 70.3°F 70.8°F
Setubal 70.4°F 68.9°F 69.2°F
Sagres 70.1°F 65.4°F 65.2°F
Cascais 66.9°F 64.0°F 64.4°F
Estoril 66.4°F 63.6°F 64.2°F
Sintra 66.3°F 63.7°F 64.6°F
Peniche 66.2°F 63.9°F 65.4°F
Ericeira 64.9°F 62.3°F 64.2°F
Porto 64.7°F 62.4°F 63.3°F

Please see following sea water temperature averages charts for the warmest Portugal resorts in August.

You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.