The climate is of a high mountain type, with cool summers, and cold winters and frequent snow. Its average annual temperature is 9.4 degrees Celsius (at 1138 meters above sea level).
The regional language of Benasque is a Catalan–Aragonese transitional dialect that shares features with Gascon (Occitan). It is usually called patués ("patois") by its native speakers. Possessing features that are transitional between Aragonese and Catalan, it has sometimes been classified as a variety of Catalan.
To promote the local language, the local council has held an annual writing and poetry competition in patués since 1999. Separate awards are given to young and grown-up authors.