Trieste records the smallest temperature differences between winter and summer and between day and night. The climate is Alpine-continental in the mountainous areas, where, in some locations, the coldest winter temperatures in Italy can often be found. The Kras plateau has its own weather and climate, influenced, mostly during autumn and winter, by masses of cold air coming from the north-east. These generate a very special feature of the local climate: the north-easterly wind Bora, which descends onto the Gulf of Trieste with gusts occasionally exceeding speeds of 150 km/h.