It depends. Las Grutas sits around 18.0°C in May; confident swimmers will be fine, casual bathers may prefer short sessions.
Monthly averages set expectations, but the specific beach today depends on wind, swell and recent weather. Check the live value at the top of this page or open the Las Grutas live page for full conditions.
Best months to swim
June · July · August · September
Frequently asked questions
What is the average sea temperature at Las Grutas in May?
Las Grutas averages 18.0°C in May, based on long-run climatology for the Atlantic Ocean.
Is the sea warm enough to swim at Las Grutas in May?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Las Grutas in May?
A 2 mm shorty is comfortable for sessions over 30 minutes.
