There is a record of the castle at "Castrum Caucoliberi" having been mentioned as early as 673, indicating that the settlement here was of strategic and commercial importance during the Visigoth ascendancy.

Collioure used to be divided into two villages separated by the river Douy, the old town to the south named Port d'Avall (in French known as Le Faubourg) and the upstream port, Port d'Amunt (in French known as Le Mouré).[citation needed]

Collioure was taken in 1642 by the French troops of Maréchal de la Meilleraye. A decade later, the town was officially surrendered to France by the 1659 Treaty of Pyrenees. Because of its highly strategic importance, the town's fortifications, the Château Royal de Collioure and the Fort Saint-Elme stronghold, were improved by the military engineer Vauban during the reign of Louis XIV. Nevertheless, Collioure was besieged and occupied by the Spanish troops in 1793, marking the last Spanish attempt to take the city. The city was retaken a year later by general Jacques François Dugommier.

In 1823, the territory of Port-Vendres became a commune, taking parts from the communes of Collioure and Banyuls-sur-Mer.[1]

On 21 January 1870, an exceptional climatic phenomenon occurred in Collioure, as observed by Charles Naudin at the time; more than one metre (39 inches) of snow fell in one day on the town. Many orchards as well as cork oak woodlands were damaged.[2]