Can you swim at Ynyslas Beach in May? — 11.0°C water
Cold — wetsuit recommended
Average sea · May
11.0°C
Live water now
…
Recommended wetsuit
5/4mm fullsuit + boots & gloves
cool
Cold. 11.0°C in May is cold-water swimming territory — a 4/3 mm full wetsuit, neoprene cap and short, repeated sessions are the safe approach.
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 Ynyslas Beach live page for full conditions.
Frequently asked questions
What is the average sea temperature at Ynyslas Beach in May?
Ynyslas Beach averages 11.0°C in May, based on long-run climatology for the Irish Sea.
Is the sea warm enough to swim at Ynyslas Beach in May?
Not without thermal protection — a wetsuit is recommended at 11.0°C.
Do I need a wetsuit at Ynyslas Beach in May?
A 4/3 mm full wetsuit, boots and neoprene cap are recommended.
