Bordeaux wine regions Bordeaux wine regions The wine regions of Bordeaux are a large number of wine growing areas, differing widely in size and sometimes overlapping, which lie within the overarching wine region of Bordeaux, centred on the city of Bordeaux and covering the whole area of the Gironde department of Aquitaine. The Bordeaux region is naturally divided by the Gironde Estuary into a Left Bank area which includes the Médoc and Graves and a Right Bank area which includes the Libournais, Bourg and Blaye. The Médoc is itself divided into Haut-Médoc (the upstream or southern portion) and Bas-Médoc (the downstream or northern
Margaret River (wine region) with only 200 millimetres of the annual 1160 millimetres falling between October and April. The low diurnal and seasonal temperature range means an unusually even accumulation of warmth. Overall the climate is similar to that of Bordeaux in a dry vintage. Although the region produces just three percent of total Australian grape production, it produces over 20 percent of Australia's premium wine market. The principal grape varieties are fairly evenly split between red and white; Cabernet Sauvignon, Chardonnay, Sauvignon blanc, Sémillon, Shiraz, Merlot, Chenin blanc and Verdelho. There are no official Margaret River subregions, although in 1999 viticultural scientist Dr