The Portugal resorts with the warmest sea water temperature at this moment are Corvo Island, Madeira and Funchal.
Below you can see a list of all popular Portugal resorts and information about current sea water temperature and averages for current and next months.
| Resort Name | Current Sea Water Temperature |
August 2025 | September 2025 |
|---|---|---|---|
| Corvo Island | 80.0°F | 77.8°F | 75.1°F |
| Madeira | 79.4°F | 78.0°F | 77.4°F |
| Funchal | 79.4°F | 78.0°F | 77.4°F |
| Canico | 79.4°F | 77.8°F | 77.0°F |
| Sao Jorge | 79.0°F | 77.9°F | 75.9°F |
| Flores Island | 78.8°F | 77.7°F | 75.4°F |
| Pico Island | 78.6°F | 77.3°F | 75.7°F |
| Faial Island | 78.6°F | 77.2°F | 75.6°F |
| Santa Maria Island | 78.4°F | 77.5°F | 76.4°F |
| Graciosa | 78.2°F | 78.2°F | 75.2°F |
| Porto Santo Island | 78.0°F | 76.3°F | 76.8°F |
| Sao Miguel | 77.8°F | 76.7°F | 75.5°F |
| Ponta Delgada | 77.2°F | 76.9°F | 75.7°F |
| Terceira Island | 76.8°F | 77.0°F | 75.2°F |
| Lisbon | 74.0°F | 72.4°F | 67.7°F |
| Tavira | 72.4°F | 76.5°F | 68.4°F |
| Algarve | 72.4°F | 76.0°F | 68.9°F |
| Faro | 72.4°F | 76.0°F | 68.9°F |
| Quarteira | 71.6°F | 75.0°F | 67.8°F |
| Albufeira | 71.6°F | 74.8°F | 67.3°F |
| Setubal | 71.6°F | 70.4°F | 66.3°F |
| Alvor | 71.0°F | 73.8°F | 66.3°F |
| Lagos | 70.8°F | 73.1°F | 65.5°F |
| Portimao | 70.6°F | 74.0°F | 66.8°F |
| Sintra | 68.8°F | 66.3°F | 64.0°F |
| Sagres | 68.6°F | 70.1°F | 63.6°F |
| Porto | 68.6°F | 64.7°F | 62.9°F |
| Estoril | 68.4°F | 66.4°F | 63.9°F |
| Ericeira | 68.2°F | 64.9°F | 63.2°F |
| Cascais | 68.2°F | 66.9°F | 64.0°F |
| Peniche | 68.0°F | 66.2°F | 64.2°F |
Please see following sea water temperature averages charts for the warmest Portugal resorts for more details.
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.
