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.
At night the average minimum temperature drops down to around 20Â°C, that's 68Â°F. In recent times the highest recorded temperature in October has been 35Â°C that's 96Â°F, with the lowest recorded temperature 14Â°C, about 57Â°F.n October, for the nearest coastal location, the temperature of the sea averages around 24Â°C, that's 75Â° Fahrenheit. Our index indicates for swimming this is considered warm and would be enjoyed by all, even those who are more likely to suggest the water was âtoo coldâ for a swim.