Valenciennes experiences a cool and temperate climate, with winters being the chilliest season. Daytime temperatures rarely rise above 12°C in January, while nighttime temperatures can drop below freezing. As spring approaches, temperatures gradually warm up, reaching averages around 7-11°C by May, allowing for pleasant days with occasional warmth. Summer is mild to warm, with July and August averaging around 18°C, but with occasional highs of up to 30°C. In autumn, the temperature cools down again, with November and December temperatures ranging from -5°C to 15°C, marking the beginning of a cold winter.