The temperature in the open sea hovers above 22° C from June to November, climbing to 27° C in August. Even during the three coolest months of January to March, average sea temperature are an acceptable 16° or 17° C. Near the coast, the temperature of water three or four metres deep is similar to that of the open sea, ranging from 15° to 17°C in February and from 23° to 28° C in August. There are no significant daily fluctuations in sea water temperatures, except in very shallow waters less than one metre deep.