Can you swim at Fire Island in March? — 4.0°C water
Cold — wetsuit recommended
Average sea · March
4.0°C
Live water now
…
Recommended wetsuit
6/5/4mm hooded fullsuit or drysuit
cold
Cold. 4.0°C in March 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 Fire Island live page for full conditions.
Best months to swim
July · August
Frequently asked questions
What is the average sea temperature at Fire Island in March?
Fire Island averages 4.0°C in March, based on long-run climatology for the Atlantic Ocean.
Is the sea warm enough to swim at Fire Island in March?
Not without thermal protection — a wetsuit is recommended at 4.0°C.
Do I need a wetsuit at Fire Island in March?
A 4/3 mm full wetsuit, boots and neoprene cap are recommended.
