The Santorini soil is sandy (95% sand), characterized by lack of clay and extremely low levels of organic matter. Its main components are volcanic ashes, lava deposits, small and large volcanic rocks and pumish stones. The sub-soil is of semi-crystalline lime stone and schist nature, but rarely does it affect the upper layers . It is a type of soil draining very easily but it does have a big advantage: the ability of pumish stones to retain the atmosphere humidity, directing it in the lower parts.
The winters are mild and the summers warm, with a mean annual temperature of 17°C (with the average extremes between 10°C and 25°C. The mean annual precipitation is 350-400mm of rain, with 70% οf it between November and February.
The climate of Santorini is affected by the northern, strong, seasonal wind, which blows for 50 days in the middle of the summer, cooling humans and plants. Locals call it “meltemi”. Another, mesoclimate this time, phenomenon, which helps the development of vines in the summer months, is a type of fog developed over the sea, during the non-windy nights. This sea fog climbs the caldera and falls like a mist on the vineyards, offering a very valuable amount of water to the “thirsty” vines.