I was having a right old game with moisture on the rear window & also on the boot lid - it got to the stage where i was having to stuff a towel over the battery to collect dripping water. I tried all the magic desiccant remedies with cat litter, bowls of salt etc until I finally conceded & replaced the tired hood - not that I had any idea was leaking
I'm glad to report that there's no longer any moisture whatsoever in any part of the car, so the new hood sorted it out