In December 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 December for the last three years.
| Place name | December 2025 | December 2024 | December 2023 |
|---|---|---|---|
| Madeira | 68.6°F | 69.9°F | 71.0°F |
| Funchal | 68.6°F | 69.9°F | 71.0°F |
| Canico | 68.5°F | 69.7°F | 70.8°F |
| Porto Santo Island | 67.8°F | 69.3°F | 70.5°F |
| Santa Maria Island | 66.2°F | 66.9°F | 66.7°F |
| Faial Island | 64.0°F | 65.6°F | 64.6°F |
| Pico Island | 63.8°F | 65.5°F | 64.5°F |
| Flores Island | 63.7°F | 65.6°F | 64.1°F |
| Sao Miguel | 63.7°F | 65.5°F | 65.5°F |
| Ponta Delgada | 63.7°F | 65.7°F | 65.8°F |
| Sao Jorge | 63.6°F | 65.6°F | 64.4°F |
| Corvo Island | 63.3°F | 65.0°F | 63.8°F |
| Graciosa | 63.2°F | 65.6°F | 64.1°F |
| Terceira Island | 63.0°F | 65.1°F | 63.9°F |
| Algarve | 61.3°F | 64.2°F | 63.3°F |
| Faro | 61.3°F | 64.2°F | 63.3°F |
| Sagres | 61.1°F | 64.3°F | 63.2°F |
| Alvor | 61.0°F | 63.8°F | 62.2°F |
| Lagos | 61.0°F | 64.0°F | 62.4°F |
| Portimao | 61.0°F | 63.5°F | 62.0°F |
| Albufeira | 60.9°F | 63.5°F | 62.3°F |
| Tavira | 60.8°F | 63.7°F | 63.0°F |
| Quarteira | 60.8°F | 63.2°F | 62.3°F |
| Setubal | 60.1°F | 61.6°F | 61.6°F |
| Ericeira | 59.7°F | 61.6°F | 61.1°F |
| Estoril | 59.7°F | 61.7°F | 61.6°F |
| Sintra | 59.7°F | 61.5°F | 61.4°F |
| Peniche | 59.6°F | 60.9°F | 61.0°F |
| Cascais | 59.6°F | 61.7°F | 61.6°F |
| Lisbon | 58.8°F | 60.0°F | 59.8°F |
| Porto | 58.4°F | 59.3°F | 59.3°F |
Charts below show average sea water temperature for Portugal resorts with the warmest sea in December.
You can also check other months of the year to see sea temperature of Portugal resorts at that time.
Places in Portugal:
Name
°F
