SizunSizun is a commune in the Finistère department of Brittany in north-western France.GeographyClimateSizun has an oceanic climate. The average annual temperature in Sizun is. The average annual rainfall is with January as the wettest month. The temperatures are highest on average in August, at around, and lowest in February, at around. The highest temperature ever recorded in Sizun was on 9 August 2003; the coldest temperature ever recorded was on 17 January 1985.PopulationInhabitants of Sizun are called in French Sizuniens.Breton languageIn 2008, 19.74% of primary-school children attended bilingual schools.