An amount below 100 means Dayton, Ohio is cheaper than the US average. A cost of living index above 100 means Dayton, Ohio is more expensive.
Sea Island, GA Weather. The average temperature of Sea Island is 67.50Â°F, which is much higher than the Georgia average temperature of 62.30Â°F and is much higher than the national average temperature of 54.45Â°F. Historical Weather.
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 rainfall is 412 mm/16 inches per year. * 2  Sea temperatures range from 19Â°C/66Â°F to 24Â°C/75Â°F. * 3  Average number of sunshine hours ranges from 7 to 11 hours per day.