The Garda Lake is part of that ample climatic zone that includes the Padana valley and the first alpine valleys and that a moderate-continental climate denotes, but that locally shows conditions notably mitigated by the mass of water: this clime can be defined as sub-Mediterranean. The place with the mildest temperatures is Malcesine, whereas the one with more rigid temperatures and a more continental climate is Peschiera del Garda. Raininess is well distributed, with a relative minimum of precipitations in winter, while the summer is usually interrupted by intense storms, especially in the month of August. In winter the temperatures are less rigid in comparison to the surrounding zones and the precipitations are rather scarce, while the fogs, only in few occasions, succeed in invading the low lake.
On the shores it doesn’t almost never present conditions of frosty water, that are exceptionally verified only: the last notable event has happened in 1709, when it froze the whole lake, in the clou of a period of global climatic cooling. The Garda is a lake directed from north to south toward the Lowland Padana, therefore many typical winds of the Garda are the results of a difference of atmospheric conditions among low and high lake, due to this specific situation winds produced go down from the mountains toward the lowland in the morning and go up again toward the mountains in the afternoon. The narrow passage shaped by the lake basin conditions the exhale of some winds, many of which I are periodic or even daily.
The sequence of the glaciations and the thaws contributed, initially, to form a very similar vegetation to that continental European; subsequently to a flood that happened in the VII century, the limit of the forest went up and the lake vegetation started to characterize him in different way: they increased the cultivated kinds, still typical today of the Garda Lake (particularly the chestnut tree, the walnut-tree, the olive tree, the grapevine and the cereals), but it also increased the variety of the wild kinds making, from the point of view of the botanists, the lake exceptional, thanks to the climate that goes from sub-Mediterranean on the coast, to alpine in the mountains that surround it. The Lombardy bank also known as Coast of the Lemons, here cultivated in characteristic pillars gardens and walls of pebbles, distributed into staircases.