Weather in France, Italy, and Switzerland in mid-to-late September

Italy has a Mediterranean climate in southern Europe. It is still very pleasant in mid-to-late September. The temperature is 25-30 degrees during the day, and it should be basically sunny. In areas with high latitudes in France, such as Paris (Paris is actually on the same latitude as Harbin), the weather becomes normal after September, with autumn wind and rain, and the temperature is only in the teens. Switzerland has many mountainous areas and a large temperature difference between day and night. Both France and Switzerland need to prepare autumn clothes in September. When traveling, long-sleeved fleece sweaters and light jackets are good choices.