The town of Ermioni enjoys a typical Mediterranean climate, characterized by mild and wet winters, as well as hot and dry summers. Rain falls in the area take place mainly between October and March. From July to mid-September it is very sunny, the sea is warm and the winds are regular. From mid-September to November, the sun tends to be not so intense, although the waters reach their warmest point, as they can get to the 24ºC. The evenings get cooler, and the north-west winds become more sporadic. In general, May, September and the first half of October are the driest months.