Rostrenen

Rostrenen is a commune in the French department of Côtes-d'Armor, in Brittany.

Geography

Neighbouring communes

Rostrenen is border by Mellionnec to the south, Plouguernevel to the east, Kergrist-Moëlou to the north, and Glomel to the west.

Climate

Rostrenen has an oceanic climate. The average annual temperature in Rostrenen is. The average annual rainfall is with December as the wettest month. The temperatures are highest on average in August, at around, and lowest in January, at around. The highest temperature ever recorded in Rostrenen was on 18 July 2022; the coldest temperature ever recorded was on 20 January 1963.

Population

In French the inhabitants of Rostrenen are known as Rostrenois.

Map

Breton language

On 13 September 2004 the municipality launched a linguistic plan as part of the Ya d'ar brezhoneg campaign.
In 2008, 34.5% of primary children attended bilingual schools.