Buhy () is a commune in the Val-d'Oise department in ÃÂle-de-France in northern France.
Buhy has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Buhy is . The average annual rainfall is with December 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 Buhy was on 11 August 2003; the coldest temperature ever recorded was on 12 January 1987.