Winters in Bobigny are cool and variable, with temperatures often below freezing but occasionally rising into double digits. The coldest months are January and December, with average highs around 4-6°C. Spring arrives in March, with temperatures gradually warming up to a moderate range of 7-25°C. Summer is warm, with July being the hottest month, averaging highs around 19°C, but still mild enough for outdoor activities. Autumn brings a return to cooler temperatures, with September and October experiencing average highs around 17 and 11°C respectively.