My son and I will be walking the Via de la Plata from Ourense in May 2015. I have already found some very helpful links and information but would like to ask the following: What weather could we generally expect during that part of the year ? Should we prepare for really cold evenings and mornings ? We also want to extend our stay in Santiago for a day or what. Any suggestions on what to do and see ? We are thinking of going to Finisterre for a day. I believe there will be transport available to get there and is it worthwhile to do that ?