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.
One word about the summer in Georgia: HOT. Highs average in the mid-to upper 80s through July, and will regularly top out in the low 90s in August. On a very hot, high-pressure summer day with little wind, temperatures along the coast may push more than 100 degrees.urthermore, the one thing Georgia does have going for it is a 6- to 10-foot difference between tides. Since the coast here is sort of tucked back west of the Carolinas and Florida, the tide pushes into the Georgia Bight with more force than anywhere south of Maine.