How about going to Germany, France and Italy in June?

These countries are rich in scenic spots and historical sites. Early June is not the peak season, and there will not be many people (there will be an army of students, but there will be an aunt group or something, and schools in Europe have not yet had a holiday, and the number of people is always much less than in July and August). If your main interest is to visit famous scenic spots and historical sites, this time is not bad (but the most beautiful time in Fontainebleau Palace is in autumn, and the carnival in Venice is in February, but you can't meet it. In terms of scenery, Switzerland and South Germany in early summer are beautiful and not particularly hot (about 20 degrees, it will rain for several days, usually less than 30 degrees in sunny days, and occasionally there will be single-digit temperatures in the north, with a slightly larger temperature difference, so you should wear long short sleeves). But it rains occasionally, but it will be refreshing after the rain, and I won't feel humid and sultry (according to my experience in northern Germany). Moreover, when the dry season comes in the Mediterranean, there is usually plenty of sunshine (for example, Florence is about 30 degrees in early June, but it starts to get hot at the end of the month, and the hottest summer will reach 37 degrees), but compared with several domestic stove cities, it is still cool and dry, and the climate is relatively comfortable. Finally, if it's shopping, the discount season in France and Italy seems to be 1 month and July (that requires a strong body, heart and credit card, and I'm not interested in shopping, and I'm not very clear about it, but even if it's not a discount season, perfumes and the like are much cheaper than in China, and German appliances are cheaper, but I'm not sure about the recent tax exemption policy). To sum up, early June is a good choice.

I am in Germany, and all the above are personal experiences, which may not be accurate. Moreover, the weather in recent years is strange, but overall, the temperature and weather in June in these countries are relatively comfortable. Have a good time.