Algarve weather in May
Averages for 3 places in the Algarve in May, from 30 years of weather data.
Holiday weather in May
Fair
Best time to visit: June – September
Places in the Algarve in May
Sorted by holiday weather score. Each place links to its own page for May.
May compared
How the weather changes from April to June. Tap a month to open it.
Algarve in May: quick answers
Is it warm in the Algarve in May?
Yes, it is warm. Daytime highs average 23 °C (21–24 °C by place) and nights 15 °C.
Can you swim in the Algarve in May?
Only if you like it fresh: the sea is 17 °C, 17 °C on average.
Where is it warmest in the Algarve in May?
The warmest are Portimão (24 °C), Albufeira (23 °C) and Lagos (21 °C).
Does it rain much in the Algarve in May?
Now and then: 5 rainy days on average. Plus 11 hours of sunshine a day.
Is May a good time to visit the Algarve?
May scores 57 out of 100 (Fair). The best time to visit is June – September.
Algarve month by month
Algarve: weather by monthWhere to go in MaySea temperature in May
Portugal: all destinationsAll islands & regions
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)