Alfortville experiences mild winters, with temperatures often hovering around freezing point. Spring arrives in March with temperatures gradually warming up to averages of 7°C, but it's not uncommon for the mercury to dip back down below 0°C. Summer months bring warmth, with June and July averaging a pleasant 19°C, while August can sometimes reach highs of over 30°C. Autumn is cool and moderate, with October often seeing temperatures drop back down to averages around 11°C. Winters are chilly but not extreme, with January and December averages usually around 4-6°C, allowing for some frosty mornings but also mild afternoons.