Beach
Traeth Llydan
Llanfaelog, United Kingdom · sea 15.2 °C at its warmest, in August

Sea temperature month by month
Monthly means in °C, NOAA OISST v2.1 climatology 1991–2020, sampled 13 km offshore, at the nearest open water cell of a 0.25° grid.
About
Traeth ar arfordir Ynys Môn, Cymru, yw Traeth Llydan. Fe'i lleolir yn Rhosneigr. Mae’r traeth hwn yn ddarn hir o dywod gwastad, sy’n amlwg yn ei enw.
Questions
How warm is the sea at Traeth Llydan?
The sea off Traeth Llydan averages 15.2 °C at its warmest, in August, and 8.1 °C at its coolest. These are monthly means from NOAA's OISST v2.1 satellite and buoy record for 1991 to 2020, sampled at the beach's own coordinates.
When can you swim at Traeth Llydan?
The sea here never averages 20 °C in any month, so swimming means cold water all year. Some people do it anyway.
Where is Traeth Llydan?
Traeth Llydan is on the coast of Llanfaelog, United Kingdom, at 53.2216, -4.5138. The map on this site flies straight to it.
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