The weather at that time is complete guesswork. It can be very pleasant with mid 20's C during the day (shorts & T-shirt) and low teens at night (jumper or jacket). Equally it can be wet and windy 2 or 3 days in succession. For everyone that experienced the good there will be somebody who experienced the bad.
You are in the last week of the season so most things will be winding down. Again it's guesswork as to what will be open.