BrennilisBrennilis is a commune in the Finistère department of Brittany in northwestern France.WWW Official SiteGeographyClimateBrennilis has an oceanic climate. The average annual temperature in Brennilis is. The average annual rainfall is with January as the wettest month. The temperatures are highest on average in July, at around, and lowest in February, at around. The highest temperature ever recorded in Brennilis was on 8 August 2003; the coldest temperature ever recorded was on 12 January 1987.PopulationInhabitants of Brennilis are called Brennilisiens in French.