Same here, still snow on the Pyrenees at that time but passable. However down into Spain and the weather was unseasonably hot. Climbing Alto de Perdon was one of if not the hardest days because of the heat. Leaving Carrion in May so cold I had to dig out winter buff and gloves that I thought would be only needed in the Pyrenees next day warm again. 15th May climbing up to O Cebreiro was a very pleasant day. Went into hotel for coffee, came out and within seconds, the temperature plunged and I almost ran down the hill trying to keep warm. Stayed that night in Hospital de la Condessa, the coldest night of the whole camino. So what I am trying to say is, instead of asking about the weather, you may as well ask, how long is a piece of string. But then, I am Irish and we can have all four seasons in one day so if we are still breathing, the weather is ok