We leave on wednesday and will be there till tuesday the 10th. I'm packing long- and short-sleeved t-shirts, one light sweater, and a fleece sweatshirt that can be used for layering, plus I'll have a raincoat and my winter coat (only cuz I've got to wear it to the airport!) just in case. As for bottoms, it's all jeans, but I tend to only wear shorts if it's ghastly hot. So I don't think you'd need shorts, unless you really like to wear them even if it's moderately warm. Just my thought at least.