sea average temperature
1 * Sea temperatures range from 16Â°C/61Â°F to 23Â°C/74Â°F. * 2  Average number of sunshine days ranges from 95 hours per month during the winter in the Black Sea Coast Region to 375 hours per month in the Aegean, Mediterranean and Central Anatolia Regions. * Average low temperature is 15Â°C/59Â°F. * 2  Average high temperature is 24Â°C/75Â°F. * 3  Average rainfall is 412 mm/16 inches per year. * 4  Sea temperatures range from 19Â°C/66Â°F to 24Â°C/75Â°F. * 5  Average number of sunshine hours ranges from 7 to 11 hours per day.