Can you swim at Surfside Beach Nantucket in May? — 10.0°C water
Cold — wetsuit recommended
Average sea · May
10.0°C
Live water now
…
Recommended wetsuit
5/4mm fullsuit + boots & gloves
cool
Cold. 10.0°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 Surfside Beach Nantucket live page for full conditions.
Frequently asked questions
What is the average sea temperature at Surfside Beach Nantucket in May?
Surfside Beach Nantucket averages 10.0°C in May, based on long-run climatology for the Atlantic Ocean.
Is the sea warm enough to swim at Surfside Beach Nantucket in May?
Not without thermal protection — a wetsuit is recommended at 10.0°C.
Do I need a wetsuit at Surfside Beach Nantucket in May?
A 4/3 mm full wetsuit, boots and neoprene cap are recommended.