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.
Georgia's autumns are normally sunny and cool. September and October, the driest months of the year, qualify as Indian Summer weather with temperatures that are near 78 Â°F (26 Â°C) during the daytime. At night, the temperature drops to near 50 Â°F (10 Â°C).