average high temperature
1 * 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. Average low temperatures range from 4Â°C/39Â°F to 12Â°C/54Â°F. 2  Average high temperatures range from 15Â°C/59Â°F to 20Â°C/68Â°F. * 3  Average rainfall ranges from 547 mm/22 inches per year in Southeastern France to 1,510 mm/60 inches per year in Southwestern France. * 4  Sea temperatures range from 12Â°C/54Â°F to 18Â°C/64Â°F.