OCEAN · SEA TEMPERATURE · UK & IRELAND
Sea Temperature — Cornwall
The sea at Cornwall is currently 14.8°C (58.6°F) — cold, cold enough that most people want a wetsuit; bracing for a quick dip.
SEA TEMPERATURE · CORNWALL
Temperature14.8°C / 58.6°F
FeelsCold
Waves0.7 m / 2.4 ft · Small
Live from Open-Meteo Marine (CC-BY) for 50.27°, -5.05°.
READING THE SEA…
Is it warm enough to swim at Cornwall?
At 14.8°C the water is cold — cold enough that most people want a wetsuit; bracing for a quick dip. Sea temperature lags the seasons, so the warmest water at Cornwallusually comes a month or two after the hottest air, and a cold current or a spell of offshore wind can drop it sharply within a day. This is the surface layer; it's cooler a few metres down.
Cornwall right now
SEE IT ON THE MAP
See Cornwall on the live sea-surface-temperature map.