Deleted my post as it occurred to me to search the same dates for just 2 adults,it's about £20 cheaper, they won't mind ;)
Probably not, but your son or daughter might be upset being left behind. :p
Agree weather may be more unpredictable. This time last year was 1 short afternoon storm, 1 overcast day and the rest nice and sunny. I was happy with that although agree weather cannot be guaranteed. Later in the year also means less crowded..... always a bonus.
Mine are off the week after but I saw a £400 to Madeira same week from BHX
Beautiful place. 22 Oct? Could be a bit wet and windy!