In southern Italy you wont find hot humidity as that is typical of the north part of the country...is more likely to be very dry so you will stand higher temperature without sweat a drop...if you go in the south Puglia is always dry and you can stay without air conditioner
The best month probably is May or June as the summer is just started...avoid if possibile july or august because is more expensive, hot and packed...september is allright as well but if you go in the south east part of the country the days light will be shorter |