The best time to cruise a yacht in the Greek islands is spring – April to June – and autumn – September to October. These months are less busy than the peak months of summer, July and August, yet the weather is still warm, and there is little chance of rain. The sea temperature is at its warmest during September and October, having been warmed by the summer sun, making these months ideal for those wanting to maximize time on the water and make use of their yacht’s tenders and water toys. The winter months in Greece are cooler, with a much higher chance of rain, so they are the least popular months for a Greece yacht charter.