The Pic Saint Loup is a Mediterranean climate. But the proximity with the Cevennes mountains, gives a continental typicity which impacts the profile of wines and also marks its uniqueness. Three climatic factors must be taken into consideration:
The Pic Saint Loup area is in an intermediate place between the Cevennes, particularly humid, and dry plain of Montpellier. Most of the rainfall are concentrated in the equinoxes of spring and autumn. These can be penalizing for grapes varieties which have a long maturation, but that procure an important water recharge and limit the stress of vines during dry periods. Pic Saint Loup ‘s region is the most well-watered throughout the Languedoc-Roussillon with the Terrasses du Larzac area.
The annual sum of temperatures on the AOP is around 16 °C. It’s one of the lowest in the Languedoc-Roussillon. The average temperature is around 12 °C or about 2 degrees less than Montpellier city. What particularly affects the vegetative cycle of the vine, it is the daily circadian temperature variations (> 12 °) in August and September. This is a characteristic of the appellation which contributes to the expression of finess and freshness of wines.
The prevailing winds are the Mistral and Tramontane. With its landscape, the Pic Saint Loup AOC is rather protected from strong winds. Mistral and Tramontane blows but regularly enough to protect the area of the sea wind, the south-east wind, which brings moisture and sea entries. Thus, winds contribute to the protection of the vineyards against the humidity and the diseases (powdery mildew, greymold).