GeishouseGeishouse is a commune in the Haut-Rhin department in Grand Est in north-eastern France.GeographyClimateGeishouse has an oceanic climate. The average annual temperature in Geishouse is. The average annual rainfall is with December as the wettest month. The temperatures are highest on average in July, at around, and lowest in January, at around. The highest temperature ever recorded in Geishouse was on 24 July 2019; the coldest temperature ever recorded was on 9 January 1985.