Soissons, France experiences a temperate climate with distinct seasonal variations. Winters are typically cool and unpredictable, with temperatures fluctuating between freezing and mild days, averaging around 3-6°C. Spring arrives in March, bringing rising temperatures and occasional warmer spells, with average highs reaching up to 24°C by April. Summer months from June to August are warm and stable, with average highs often above 25°C, although some cooler days can occur. Autumn sees a gradual cooling of temperatures, returning to more moderate levels by October, before the onset of another cool winter.