Around 1,500 km separate the foothills of the Alps south of Munich and Jurançon in France, but despite this distance, both have a climatic similarity: the Foehn, a dry warm wind from the mountains, always blowing from the south. In wine-growing areas north of the Alps, in the autumn, the grapes intended for the production of a sweet wine can dry and rosinate in the vineyard on the vine, naturally concentrating the sugars. A well-known example of a sweet wine that benefits from the Foehn is a Flétri from Valais.