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.
Visitors to Tybee Island, Georgia can expect a pleasant climate! The warm spring and summer days are refreshingly offset by the cool breezes rolling in from the Atlantic Ocean. During the fall and winter months, plan on enjoying remarkably mild temperatures and plenty of sunshine. Tybee Island Weather Facts. On average, the warmest month is July.