Geography of Denmark capital Copenhagen on Zealand; Århus, Aalborg and Esbjerg in Jutland; and Odense on Funen. Denmark experiences a temperate climate. This means that the winters are mild and windy and the summers are cool. The local terrain is generally flat with a few gently rolling plains. The territory of Denmark includes the island of Bornholm in the Baltic Sea and the rest of metropolitan Denmark, but excludes the Faroe Islands and Greenland. Its position gives Denmark complete control of the Danish Straits (Skagerrak and Kattegat) linking the Baltic and North Seas. The country's natural resources include petroleum, natural gas, fish, salt,
Denmark or so rivers, and the most significant include the Gudenå, Odense, Skjern, Suså and Vidå—a river that flows along its southern border with Germany. The Kingdom of Denmark includes two overseas territories, both well to the west of Denmark: Greenland, the world's largest island, and the Faroe Islands in the North Atlantic Ocean. These territories are self-governing and form part of the Danish Realm. Denmark has a temperate climate, characterised by mild winters, with mean temperatures in January of , and cool summers, with a mean temperature in August of . The most extreme temperatures recorded in Denmark, since 1874