Can you swim at Derrynane in February? — 9.0°C water

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

Cold. 9.0°C in February 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 Derrynane live page for full conditions.

Frequently asked questions

What is the average sea temperature at Derrynane in February?

Derrynane averages 9.0°C in February, based on long-run climatology for the Celtic Sea.

Is the sea warm enough to swim at Derrynane in February?

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

Do I need a wetsuit at Derrynane in February?

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