Portugal weather in May
In May, popular resorts in Portugal (Faro, Albufeira, Portimão, Funchal, Lisbon) average 20°C by day and 15°C at night, and the sea is about 19°C. On average 35 mm of rain falls during the month.
That is 2°C warmer than in April, and in June days average 22°C.
It is mild, more a time for sightseeing than for the beach. The sea is cool, swimming only for the hardy.
Warmest resorts in Portugal in May
Portugal weather in other months
See also
FAQ
Is it warm in Portugal in May?
In May, popular resorts in Portugal (Faro, Albufeira, Portimão, Funchal, Lisbon) average 20°C by day and 15°C at night, and the sea is about 19°C. On average 35 mm of rain falls during the month. It is mild, more a time for sightseeing than for the beach.
What is the sea temperature in Portugal in May?
About 19°C on average. The warmest water is in Funchal (20°C).
Where is it warmest in Portugal in May?
The warmest place is Faro (22°C by day), followed by Albufeira (22°C) and Portimão (20°C).
Does it rain in Portugal in May?
On average 35 mm of rain falls in the month. Rain happens, but usually in short showers.
Long-term averages from NASA POWER data (MERRA-2, 2001-2020 reanalysis, CC BY 4.0). Sea temperature is the average water surface temperature at the nearest grid point over the sea. This is climate, not a forecast for a specific day.