Le Chesnay, France experiences a mild climate with significant seasonal variation. Winters are cool and occasionally cold, with temperatures often below freezing in January and February, but gradually warming up towards March, which can be quite pleasant. Spring is marked by steady temperature increases, reaching average highs of 12°C by May, making it an excellent time to enjoy outdoor activities. Summers are warm to hot, with July being the warmest month, while autumns are generally mild and sunny, with temperatures dropping gradually as winter approaches again.