In May 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 May for the last three years.
| Place name | May 2025 | May 2024 | May 2023 |
|---|---|---|---|
| Madeira | 68.3°F | 68.8°F | 69.5°F |
| Funchal | 68.3°F | 68.8°F | 69.5°F |
| Canico | 68.0°F | 68.6°F | 69.4°F |
| Porto Santo Island | 66.9°F | 68.2°F | 68.6°F |
| Santa Maria Island | 65.1°F | 66.9°F | 66.4°F |
| Faro | 64.5°F | 61.9°F | 64.9°F |
| Algarve | 64.5°F | 61.9°F | 64.9°F |
| Lisbon | 63.9°F | 62.8°F | 64.0°F |
| Tavira | 63.7°F | 60.7°F | 64.3°F |
| Quarteira | 63.7°F | 61.0°F | 64.0°F |
| Ponta Delgada | 63.5°F | 65.3°F | 65.1°F |
| Sao Miguel | 63.5°F | 65.1°F | 64.8°F |
| Setubal | 63.4°F | 62.0°F | 63.3°F |
| Flores Island | 63.4°F | 64.9°F | 63.7°F |
| Corvo Island | 63.3°F | 65.1°F | 63.8°F |
| Sao Jorge | 63.2°F | 65.4°F | 63.9°F |
| Albufeira | 63.2°F | 60.3°F | 63.7°F |
| Faial Island | 63.1°F | 64.9°F | 63.7°F |
| Graciosa | 63.1°F | 65.1°F | 63.7°F |
| Pico Island | 63.1°F | 64.9°F | 63.7°F |
| Portimao | 62.6°F | 60.0°F | 63.2°F |
| Alvor | 62.6°F | 60.0°F | 63.1°F |
| Terceira Island | 62.4°F | 64.5°F | 63.5°F |
| Lagos | 62.3°F | 59.9°F | 62.6°F |
| Sagres | 62.1°F | 60.0°F | 61.9°F |
| Cascais | 61.8°F | 60.1°F | 60.8°F |
| Sintra | 61.7°F | 60.1°F | 60.8°F |
| Estoril | 61.6°F | 59.9°F | 60.7°F |
| Peniche | 61.6°F | 59.9°F | 60.6°F |
| Ericeira | 61.2°F | 59.6°F | 60.5°F |
| Porto | 60.7°F | 58.6°F | 59.3°F |
Charts below show average sea water temperature for Portugal resorts with the warmest sea in May.
You can also check other months of the year to see sea temperature of Portugal resorts at that time.
Places in Portugal:
Name
°F
