In August warmest sea in Portugal is usually observed in the following locations: Madeira, Funchal, Canico.
Table below shows the average sea water temperature for marine resorts of Portugal in August for the last three years.
| Place name | August 2026 | August 2025 | August 2024 |
|---|---|---|---|
| Madeira | 76.6°F | 75.2°F | 75.5°F |
| Funchal | 76.6°F | 75.2°F | 75.5°F |
| Canico | 76.5°F | 75.0°F | 75.1°F |
| Porto Santo Island | 75.9°F | 73.7°F | 74.8°F |
| Corvo Island | 75.1°F | 75.0°F | 77.9°F |
| Santa Maria Island | 74.9°F | 74.8°F | 78.1°F |
| Flores Island | 74.6°F | 75.0°F | 78.2°F |
| Sao Jorge | 74.5°F | 75.1°F | 77.9°F |
| Pico Island | 74.3°F | 74.6°F | 77.2°F |
| Faial Island | 74.3°F | 74.5°F | 77.2°F |
| Graciosa | 74.2°F | 75.3°F | 77.5°F |
| Terceira Island | 73.5°F | 74.3°F | 76.8°F |
| Sao Miguel | 73.2°F | 74.1°F | 76.9°F |
| Ponta Delgada | 73.0°F | 74.2°F | 77.1°F |
| Lisbon | 70.2°F | 70.2°F | 68.3°F |
| Tavira | 69.4°F | 73.9°F | 72.4°F |
| Setubal | 68.9°F | 68.4°F | 67.0°F |
| Faro | 68.7°F | 73.4°F | 72.3°F |
| Algarve | 68.7°F | 73.4°F | 72.3°F |
| Quarteira | 67.6°F | 72.5°F | 71.3°F |
| Albufeira | 67.3°F | 72.3°F | 70.6°F |
| Portimao | 66.9°F | 71.6°F | 69.9°F |
| Peniche | 66.9°F | 64.6°F | 62.5°F |
| Porto | 66.7°F | 63.3°F | 61.2°F |
| Alvor | 66.3°F | 71.4°F | 69.5°F |
| Ericeira | 65.9°F | 63.4°F | 61.0°F |
| Sintra | 65.9°F | 64.7°F | 62.3°F |
| Estoril | 65.6°F | 64.7°F | 62.2°F |
| Cascais | 65.5°F | 65.2°F | 62.6°F |
| Lagos | 65.3°F | 70.8°F | 67.9°F |
| Sagres | 64.3°F | 68.1°F | 63.8°F |
Charts below show average sea water temperature for Portugal resorts with the warmest sea in August.
You can also check other months of the year to see sea temperature of Portugal resorts at that time.
Places in Portugal:
Name
°F
