It depends. San Blas sits around 19.0°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 San Blas live page for full conditions.
Best months to swim
June · July · August · September · October
Frequently asked questions
What is the average sea temperature at San Blas in May?
San Blas averages 19.0°C in May, based on long-run climatology for the Mediterranean Sea.
Is the sea warm enough to swim at San Blas in May?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at San Blas in May?
A 2 mm shorty is comfortable for sessions over 30 minutes.
