Haravilliers has an oceanic climate (Köppen climate classificationCfb). The average annual temperature in Haravilliers is 10.9 °C (51.6 °F). The average annual rainfall is 676.8 mm (26.65 in) with December as the wettest month. The temperatures are highest on average in August, at around 18.9 °C (66.0 °F), and lowest in January, at around 3.7 °C (38.7 °F). The highest temperature ever recorded in Haravilliers was 38.5 °C (101.3 °F) on 12 August 2003; the coldest temperature ever recorded was −13.7 °C (7.3 °F) on 7 February 1991.
Climate data for Haravilliers (1981−2010 normals, extremes 1990−2010)