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.
In October, for the nearest coastal location, the temperature of the sea averages around 22Â°C, that's 72Â° Fahrenheit. Our index indicates for swimming this is considered fairly warm and should be enjoyed by most, though some people may still find it a little too cool for their liking.