May (20–24°C, olive groves in flower, low crowds) and September (25°28°C, lake swimming still good, harvest season). June is also excellent when it's…
April and October. Temperatures 15–20°C, hotel rates 30–50% lower, and fewer tourists. April can be wet; October is more settled.…
Go in May or September for the best mix of weather, low crowds, and affordable prices.