Can you swim at Fire Island in May? — 13.0°C water

Cool — short dips or a shorty wetsuit
Average sea · May
13.0°C
Live water now
Recommended wetsuit
4/3mm fullsuit
cool

Cool. 13.0°C in May means short dips for most people. A 2 mm shorty or 3/2 mm wetsuit transforms the experience.

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 May?

Fire Island averages 13.0°C in May, based on long-run climatology for the Atlantic Ocean.

Is the sea warm enough to swim at Fire Island in May?

Not without thermal protection — a wetsuit is recommended at 13.0°C.

Do I need a wetsuit at Fire Island in May?

A 3/2 mm wetsuit makes longer swims comfortable.