Aegina weather: Aegina has a Mediterranean climate, consisting of mild winters and dry, hot summers. Springtime is particularly enjoyable in Aegina since the fertile island gets covered with abundant vegetation and the temperatures become just perfect. Autumn is also very pleasant for visiting the island, the days are still sunny and clear and the temperatures quite mild. Aegina has the driest climate of all the islands of the Saronic Gulf and water is provided from wells and springs. Sometimes it has to be carried from the mainland of Greece by special water boats.