Générargues has ahot-summer Mediterranean climate (Köppen climate classificationCsa). The average annual temperature in Générargues is 14.2 °C (57.6 °F). The average annual rainfall is 1,239.7 mm (48.81 in) with October as the wettest month. The temperatures are highest on average in July, at around 23.6 °C (74.5 °F), and lowest in January, at around 6.0 °C (42.8 °F). The highest temperature ever recorded in Générargues was 43.3 °C (109.9 °F) on 28 June 2019; the coldest temperature ever recorded was −17.0 °C (1.4 °F) on 4 February 1963.
Climate data for Générargues (1991−2020 normals, extremes 1949−present)