Yerres experiences mild winters, with temperatures rarely dropping below freezing and averaging around 4-6°C. Spring arrives in late March, bringing warm days up to 25°C, while summer is characterized by moderate heatwaves, with temperatures occasionally reaching 30-32°C. Autumn is generally cool, with temperatures often dipping into single digits at night, but can still see warm afternoons up to 23°C. Mornings are usually chilly in winter and early spring, while afternoons can be pleasant, even during the coldest months. Overnight lows remain relatively consistent throughout the year, rarely falling below -3°C.