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.
When planning to visit the island, February is generally a good month to consider. The weather is reliably warm and pleasant throughout the month with the average temperature standing at 25Â°C. During the day, the average high temperature is normally 29Â°C rising to a high of 20Â°C during the day.