Kaltern an der Weinstraße, often abbreviated to Kaltern or Caldaro, is a municipality and a village in South Tyrol in northern Italy. It is about 1…Kaltern an der Weinstraße, often abbreviated to Kaltern or Caldaro, is a municipality and a village in South Tyrol in northern Italy. It is about 12 kilometres southwest of the city of Bolzano. As of 30 November 2010, it had a population of 7,592 and an area of 47.9 square kilometres.