Can you swim at Seaford Beach in January? — 9.0°C water

Cold — wetsuit recommended
Average sea · January
9.0°C
Live water now
Recommended wetsuit
5/4mm fullsuit + boots & gloves
cold

Cold. 9.0°C in January 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 Seaford Beach live page for full conditions.

Frequently asked questions

What is the average sea temperature at Seaford Beach in January?

Seaford Beach averages 9.0°C in January, based on long-run climatology for the English Channel.

Is the sea warm enough to swim at Seaford Beach in January?

Not without thermal protection — a wetsuit is recommended at 9.0°C.

Do I need a wetsuit at Seaford Beach in January?

A 4/3 mm full wetsuit, boots and neoprene cap are recommended.