The Portugal resorts with the warmest sea water temperature at this moment are Madeira, Funchal and Porto Santo Island.
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 |
September 2025 | October 2025 |
|---|---|---|---|
| Madeira | 79.4°F | 77.4°F | 76.8°F |
| Funchal | 79.4°F | 77.4°F | 76.8°F |
| Porto Santo Island | 78.4°F | 76.8°F | 75.9°F |
| Canico | 78.4°F | 77.0°F | 76.3°F |
| Faial Island | 77.6°F | 75.6°F | 73.2°F |
| Pico Island | 77.6°F | 75.7°F | 73.2°F |
| Ponta Delgada | 77.2°F | 75.7°F | 74.4°F |
| Santa Maria Island | 77.2°F | 76.4°F | 75.9°F |
| Sao Jorge | 77.0°F | 75.9°F | 73.6°F |
| Flores Island | 76.8°F | 75.4°F | 72.9°F |
| Albufeira | 76.6°F | 67.3°F | 70.1°F |
| Quarteira | 76.6°F | 67.8°F | 70.6°F |
| Sao Miguel | 76.6°F | 75.5°F | 74.3°F |
| Corvo Island | 76.6°F | 75.1°F | 72.6°F |
| Faro | 76.4°F | 68.9°F | 70.9°F |
| Algarve | 76.4°F | 68.9°F | 70.9°F |
| Alvor | 76.4°F | 66.3°F | 69.4°F |
| Portimao | 76.4°F | 66.8°F | 69.6°F |
| Tavira | 76.4°F | 68.4°F | 71.0°F |
| Terceira Island | 76.2°F | 75.2°F | 73.1°F |
| Lagos | 76.0°F | 65.5°F | 68.8°F |
| Graciosa | 76.0°F | 75.2°F | 73.0°F |
| Sagres | 74.6°F | 63.6°F | 67.3°F |
| Lisbon | 69.6°F | 67.7°F | 66.8°F |
| Setubal | 69.2°F | 66.3°F | 66.0°F |
| Cascais | 65.6°F | 64.0°F | 64.7°F |
| Estoril | 65.2°F | 63.9°F | 64.4°F |
| Sintra | 65.0°F | 64.0°F | 64.3°F |
| Ericeira | 63.2°F | 63.2°F | 63.4°F |
| Peniche | 62.8°F | 64.2°F | 62.9°F |
| Porto | 61.6°F | 62.9°F | 62.3°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.
