Trentino is a mainly mountainous province, a factor that tends to exaggerate the characteristics of the continental climate. The valleys have high temperatures in the summer accompanied by a certain degree of humidity, although the currents created by the valley and mountain breezes help to mitigate to a certain extent the close atmosphere in summer and the cold in winter. 
For areas between 800 and 1,200 metres the winters are colder while the summers are fresh and dry. In this altitude band, which concerns most of the mountain tourist resorts in the province, the maximum temperature, on average, varies in the period between June and September from 20° to 24° Celsius, while the minimum temperature for the same period varies between 9° and 12° Celsius. 
In the winter season the temperatures are much colder and often drop below zero. This leads to frost which means that drivers should be especially careful on the roads. Rainfall is mainly concentrated in the spring and autumn; however, in the mountains near the peaks, isolated heavy showers as a result of storms are quite common, although they do not last long. On the peaks themselves this phenomenon is even more frequent, as the weather high in the mountains is subject to sudden changes; for this reason a certain prudence is advised in tackling some of the more difficult itineraries, and hikers should set out suitably equipped and should be able to orientate themselves in the event of fog or snow.

In winter, therefore, it is recommended that you take along the following clothing: woollen clothes, an anorak, a hat of some kind, gloves and shoes suitable for snow-covered itineraries.

In summer, too, it is a good idea to take a heavy article of clothing such as a jumper or a sweatshirt with you, while a light waterproof anorak is essential.