The temperate continental climate in the area and the favourable distribution of precipitation are good premises for the developed red wine growing in the lowlands of Upper Thrace. The region includes the central part of the lowland, as well as parts of the Sakar mountain. Mavrud, a famous local wine, as well as Merlot, Cabernet Sauvignon, Muscatel and Pamid are grown.

The Balkan Mountains serve to block the cold winds blowing from the plains of Russia, and the region to the south of the Balkans, the valley drained by the Maritsa River, has a Mediterranean climate, with mild, rainy winters and warm, dry summers. In the US appellation also approved as "Thracian Valley" region.