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.
The average yearly temperature is around 23 Â°C (73 Â°F) during the day and 16 Â°C (61 Â°F) at night (one of the warmest temperature averages in Europe).verage annual temperature of sea is 20 Â°C (68 Â°F) (the highest annual sea temperature in Europe), from 15â16 Â°C (59â61 Â°F) in the period from January to April to 26 Â°C (79 Â°F) in August. In the 6 months from June to November, the average sea temperature exceeds 20 Â°C (68 Â°F).