OlettaOletta is a commune in the Haute-Corse department of France on the island of Corsica.GeographyClimateOletta has a hot-summer Mediterranean climate. The average annual temperature in Oletta is. The average annual rainfall is with November 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 Oletta was on 1 August 2017; the coldest temperature ever recorded was on 15 February 2012.Population