How will it be in June, the last week, versus last week of July in Shanghai?

In last week of June, it is warm with the avergae temperature of 25℃ or a little higher. Generally, it is pleasant. Howeve, it may rain during that time. Whole in the last week of July, it will be sunny in most case and is getting very hot, with the highest temp of around 35℃, so prepare enough summer clothes.