Can you swim at Llanddwyn in August? — 17.0°C water
Yes, but expect a fresh dip
Average sea · August
17.0°C
Live water now
…
Recommended wetsuit
3/2mm fullsuit
mild
It depends. Llanddwyn sits around 17.0°C in August; confident swimmers will be fine, casual bathers may prefer short sessions.
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 Llanddwyn live page for full conditions.
Frequently asked questions
What is the average sea temperature at Llanddwyn in August?
Llanddwyn averages 17.0°C in August, based on long-run climatology for the Irish Sea.
Is the sea warm enough to swim at Llanddwyn in August?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Llanddwyn in August?
A 2 mm shorty is comfortable for sessions over 30 minutes.
