Mouthe (French pronunciation: [mut]) is a commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France.

[3] The town is located 30 km (19 mi) south of Pontarlier in the Jura Mountains on the Swiss border.

Mouthe, is located in a region of the Jura Mountains known as "Little Siberia" (La Petite Sibérie) and snowfalls are not uncommon as late as the third week of March.

[3] Due to its elevation and its location in a coomb, the diurnal temperature variation is high and Mouthe features a warm-summer humid continental climate (Dfb, according to the Köppen climate classification), with an average annual precipitation of 1,712.9 mm (67.44 in).

Summers are warm and winters are very cold and snowy and there is no dry season.