If your going to Spain then it's going to be HOT normally it will be around the 25 to 30 degree mark and if your in leathers then your going to boil!! up in the mountains it can be cooler (hot day in the UK) but on the plains it gets roasting, oh DON'T forget the RAIN either, it can rain so hard that you have to stop till it passes, seen nothing like it before but believe me it hurts at a standstill let alone driving through it at 50 MPH. Other than that it is more fun than you will believe, mad Spaniards doing death defying stunts trying to see how close they can get to donkeys pulling carts in the villages, you will have a fun time and enjoy yourself no end, wish I was going with you. Have fun.