Sennen Beach Water Temperature
10.2°C / 50.4°F
The sea at Sennen Beach feels cold so don't forget to pack your wetsuit!
Average Sea Temp for Sennen Beach
The chart and table below are the sea temperature averages for Sennen Beach calculated from over twenty years of oceanographic data. As above the water temperatures given are for sea surface temperature (SST) which is most relevant to recreational users.