Mandres-les-Roses has an oceanic climate. The average annual temperature in Mandres-les-Roses 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 Mandres-les-Roses was on 6 August 2003; the coldest temperature ever recorded was on 8 January 2010.