In September 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 September for the last three years.
| Place name | September 2026 | September 2025 | September 2024 |
|---|---|---|---|
| Madeira | 77.4°F | 74.6°F | 74.8°F |
| Funchal | 77.4°F | 74.6°F | 74.8°F |
| Canico | 77.1°F | 74.3°F | 74.6°F |
| Corvo Island | 76.2°F | 72.6°F | 75.2°F |
| Sao Jorge | 76.0°F | 73.3°F | 75.3°F |
| Santa Maria Island | 75.9°F | 73.7°F | 75.6°F |
| Flores Island | 75.9°F | 72.8°F | 75.4°F |
| Graciosa | 75.8°F | 72.7°F | 75.1°F |
| Porto Santo Island | 75.7°F | 74.1°F | 74.1°F |
| Pico Island | 75.6°F | 73.1°F | 75.2°F |
| Faial Island | 75.6°F | 73.1°F | 75.2°F |
| Terceira Island | 75.5°F | 72.6°F | 74.6°F |
| Ponta Delgada | 75.3°F | 73.1°F | 75.8°F |
| Sao Miguel | 75.3°F | 72.9°F | 75.5°F |
| Tavira | 70.2°F | 66.5°F | 69.0°F |
| Faro | 69.6°F | 67.0°F | 68.3°F |
| Algarve | 69.6°F | 67.0°F | 68.3°F |
| Quarteira | 68.7°F | 66.0°F | 66.9°F |
| Lisbon | 68.5°F | 65.9°F | 65.1°F |
| Albufeira | 68.1°F | 65.5°F | 66.7°F |
| Setubal | 68.0°F | 64.6°F | 64.4°F |
| Portimao | 67.9°F | 65.1°F | 66.8°F |
| Alvor | 67.6°F | 64.7°F | 66.5°F |
| Lagos | 66.6°F | 64.0°F | 65.6°F |
| Porto | 65.8°F | 61.6°F | 59.1°F |
| Cascais | 65.3°F | 62.6°F | 61.4°F |
| Peniche | 65.1°F | 62.8°F | 61.1°F |
| Estoril | 64.9°F | 62.5°F | 61.2°F |
| Sintra | 64.6°F | 62.6°F | 61.4°F |
| Sagres | 64.5°F | 62.3°F | 63.6°F |
| Ericeira | 63.5°F | 61.9°F | 60.5°F |
Charts below show average sea water temperature for Portugal resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of Portugal resorts at that time.
Places in Portugal:
Name
°F
