Major wine producing regions in Portugal:

DOCs (Denominacao de Origem Controlada)

Alentejo - This region produces both red and white wines.  These include the full-bodied red wine Tinto Alentejo which is a blend that can include Aragonês, Trincadeira, Castelão, Alicante Bouschet and Alfrocheiro. The whites include both light-bodied and full-bodied wines made from Arinto, Antão Vaz, Roupeiro and Fernão Pires.

Algarve - This region produces red wines including Alicante Bouschet, Aragonês (Tempranillo) and Syrah. 

Beira Atlântico (Bairrada) - Wines include Tinto Bairrada, Branco Bairrada and Sparkling Bairrada.

Beira Interior - Produces Tinto Beira and Branco Beira.

Dão - Red wines from this region include Dão Alfrocheiro, Dão Touriga Nacional, Terras do Dão, Terras de Lafões and Dão Jaen.

Douro - Best know for Port which is grown in this region. Port is made from blending Touriga Franca, Touriga Nocional, Tinta Roriz (a.k.a. Tempranillo), Tinta Barrocca and Tinto Cão. 

Lisbao - This region lies along the coast of Portugal. Wines include and Alenquer, Bucelas, Arruda, Torres Vedras, O´bidos and Lourinhã, and Colares.

Madeira - Known for its namesake wine, this small Portuguese island is best known for the following grapes:

Bual (or Boal): With flavors of fig and spices, Bual wines are fortified to make a sweet style wine.

Malmsey: This grape is used to make sweet, rich wines.

Sercial: Sharp acidity and intense citrus flavors. A good aperitif.

Terrantez: This is the rarest and most delicate grape that is used to make medium sweet wines.

Tinta Negra: The most widely planted grape in Madeira. Often used to make cooking wine.

Verdelho: This white grape is used to make off-dry, sometimes smokey, wines.

Setúbal - Known for a fortified dessert wine called Moscatel de Setúbal.

Távora e Varosa (Terras de Cister)

Tejo (Ribetejo) - Known for both red and white wines, including red "Indi" blends of Cabernet Sauvignon, Syrah, Touriga Nacional, Traincadeira and Castalão. White "Indi" blends include Chardonnay, Sauvignon Blanc, Fernão Pires and Arinto.

Trás-Os-Montes (Transmontano)

Vinho Verde (Minho) - This region produces light-bodied wines made from a blend of grape varieties including Arinto, Azal, Trajadura, Loureiro and Alvarinhho (a.k.a. Albariño). These wines can be very lightly carbonated with flavors of limonade and melon.

Port

Port is a sweet, red, fortified wine from Portugal. Port is a dessert wine because it is rich and sweet. There are several styles of Port, including red, white, rosé and an aged style called Tawny Port.

Port grapes include Toiuriga Franca, Touriga Nocional, Tinta Roriz (Tempranillo), Tinta Barroca and Tinta Cao.

There are many different types of Port, but most fall under four main styles:

  • Ruby (Red) Port: A deep-colored red Port which includes Vintage, Late-bottled Vintage (LBV), Crusted and Ruby Port
  • Tawny Port: A very sweet barrel-aged port with oxidative nut and caramel flavors
  • White Port: Made with white grapes including Rabigato, Viosinho, Gouveio and Malvasia
  • Rosé Port: Made like rosé wine with flavors of strawberry, violets and caramel