I know in the summertime, it can be quite hot in Spain. I had been several years ago (not in Madrid) and the heat was almost too much for me. I know I will not want to go during the summer months. How is the weather in Madrid from October through December?
You are looking at around 20c for highs in October and 10c for lows. In November it drops a bit with an average of 14c for highs and 5 for lows. Then in December, expect 11c for highs and 2c for lows.