Cool. 14.0°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 Deal Beach live page for full conditions.
Best months to swim
July · August
Frequently asked questions
What is the average sea temperature at Deal Beach in May?
Deal Beach averages 14.0°C in May, based on long-run climatology for the Atlantic Ocean.
Is the sea warm enough to swim at Deal Beach in May?
Not without thermal protection — a wetsuit is recommended at 14.0°C.