Can you swim at Rhossili Bay 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 Rhossili Bay live page for full conditions.
Frequently asked questions
What is the average sea temperature at Rhossili Bay in January?
Rhossili Bay averages 9.0°C in January, based on long-run climatology for the Irish Sea.
Is the sea warm enough to swim at Rhossili Bay in January?
Not without thermal protection — a wetsuit is recommended at 9.0°C.
Do I need a wetsuit at Rhossili Bay in January?
A 4/3 mm full wetsuit, boots and neoprene cap are recommended.
