RennoRenno is a commune in the Corse-du-Sud department of France on the island of Corsica.GeographyClimateRenno has a warm-summer mediterranean climate. The average annual temperature in Renno is. The average annual rainfall is with November 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 Renno was on 19 July 2023 and 1 August 2017; the coldest temperature ever recorded was on 11 February 2012.Population